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/***/ "./node_modules/axios/index.js":
/*!*************************************!*\
  !*** ./node_modules/axios/index.js ***!
  \*************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

    module.exports = __webpack_require__(/*! ./lib/axios */ "./node_modules/axios/lib/axios.js");

    /***/ }),
    
    /***/ "./node_modules/axios/lib/adapters/xhr.js":
    /*!************************************************!*\
      !*** ./node_modules/axios/lib/adapters/xhr.js ***!
      \************************************************/
    /*! no static exports found */
    /***/ (function(module, exports, __webpack_require__) {
    
    "use strict";
    
    
    var utils = __webpack_require__(/*! ./../utils */ "./node_modules/axios/lib/utils.js");
    var settle = __webpack_require__(/*! ./../core/settle */ "./node_modules/axios/lib/core/settle.js");
    var buildURL = __webpack_require__(/*! ./../helpers/buildURL */ "./node_modules/axios/lib/helpers/buildURL.js");
    var parseHeaders = __webpack_require__(/*! ./../helpers/parseHeaders */ "./node_modules/axios/lib/helpers/parseHeaders.js");
    var isURLSameOrigin = __webpack_require__(/*! ./../helpers/isURLSameOrigin */ "./node_modules/axios/lib/helpers/isURLSameOrigin.js");
    var createError = __webpack_require__(/*! ../core/createError */ "./node_modules/axios/lib/core/createError.js");
    
    module.exports = function xhrAdapter(config) {
      return new Promise(function dispatchXhrRequest(resolve, reject) {
        var requestData = config.data;
        var requestHeaders = config.headers;
    
        if (utils.isFormData(requestData)) {
          delete requestHeaders['Content-Type']; // Let the browser set it
        }
    
        var request = new XMLHttpRequest();
    
        // HTTP basic authentication
        if (config.auth) {
          var username = config.auth.username || '';
          var password = config.auth.password || '';
          requestHeaders.Authorization = 'Basic ' + btoa(username + ':' + password);
        }
    
        request.open(config.method.toUpperCase(), buildURL(config.url, config.params, config.paramsSerializer), true);
    
        // Set the request timeout in MS
        request.timeout = config.timeout;
    
        // Listen for ready state
        request.onreadystatechange = function handleLoad() {
          if (!request || request.readyState !== 4) {
            return;
          }
    
          // The request errored out and we didn't get a response, this will be
          // handled by onerror instead
          // With one exception: request that using file: protocol, most browsers
          // will return status as 0 even though it's a successful request
          if (request.status === 0 && !(request.responseURL && request.responseURL.indexOf('file:') === 0)) {
            return;
          }
    
          // Prepare the response
          var responseHeaders = 'getAllResponseHeaders' in request ? parseHeaders(request.getAllResponseHeaders()) : null;
          var responseData = !config.responseType || config.responseType === 'text' ? request.responseText : request.response;
          var response = {
            data: responseData,
            status: request.status,
            statusText: request.statusText,
            headers: responseHeaders,
            config: config,
            request: request
          };
    
          settle(resolve, reject, response);
    
          // Clean up request
          request = null;
        };
    
        // Handle browser request cancellation (as opposed to a manual cancellation)
        request.onabort = function handleAbort() {
          if (!request) {
            return;
          }
    
          reject(createError('Request aborted', config, 'ECONNABORTED', request));
    
          // Clean up request
          request = null;
        };
    
        // Handle low level network errors
        request.onerror = function handleError() {
          // Real errors are hidden from us by the browser
          // onerror should only fire if it's a network error
          reject(createError('Network Error', config, null, request));
    
          // Clean up request
          request = null;
        };
    
        // Handle timeout
        request.ontimeout = function handleTimeout() {
          reject(createError('timeout of ' + config.timeout + 'ms exceeded', config, 'ECONNABORTED',
            request));
    
          // Clean up request
          request = null;
        };
    
        // Add xsrf header
        // This is only done if running in a standard browser environment.
        // Specifically not if we're in a web worker, or react-native.
        if (utils.isStandardBrowserEnv()) {
          var cookies = __webpack_require__(/*! ./../helpers/cookies */ "./node_modules/axios/lib/helpers/cookies.js");
    
          // Add xsrf header
          var xsrfValue = (config.withCredentials || isURLSameOrigin(config.url)) && config.xsrfCookieName ?
            cookies.read(config.xsrfCookieName) :
            undefined;
    
          if (xsrfValue) {
            requestHeaders[config.xsrfHeaderName] = xsrfValue;
          }
        }
    
        // Add headers to the request
        if ('setRequestHeader' in request) {
          utils.forEach(requestHeaders, function setRequestHeader(val, key) {
            if (typeof requestData === 'undefined' && key.toLowerCase() === 'content-type') {
              // Remove Content-Type if data is undefined
              delete requestHeaders[key];
            } else {
              // Otherwise add header to the request
              request.setRequestHeader(key, val);
            }
          });
        }
    
        // Add withCredentials to request if needed
        if (config.withCredentials) {
          request.withCredentials = true;
        }
    
        // Add responseType to request if needed
        if (config.responseType) {
          try {
            request.responseType = config.responseType;
          } catch (e) {
            // Expected DOMException thrown by browsers not compatible XMLHttpRequest Level 2.
            // But, this can be suppressed for 'json' type as it can be parsed by default 'transformResponse' function.
            if (config.responseType !== 'json') {
              throw e;
            }
          }
        }
    
        // Handle progress if needed
        if (typeof config.onDownloadProgress === 'function') {
          request.addEventListener('progress', config.onDownloadProgress);
        }
    
        // Not all browsers support upload events
        if (typeof config.onUploadProgress === 'function' && request.upload) {
          request.upload.addEventListener('progress', config.onUploadProgress);
        }
    
        if (config.cancelToken) {
          // Handle cancellation
          config.cancelToken.promise.then(function onCanceled(cancel) {
            if (!request) {
              return;
            }
    
            request.abort();
            reject(cancel);
            // Clean up request
            request = null;
          });
        }
    
        if (requestData === undefined) {
          requestData = null;
        }
    
        // Send the request
        request.send(requestData);
      });
    };
    
    
    /***/ }),
    
    /***/ "./node_modules/axios/lib/axios.js":
    /*!*****************************************!*\
      !*** ./node_modules/axios/lib/axios.js ***!
      \*****************************************/
    /*! no static exports found */
    /***/ (function(module, exports, __webpack_require__) {
    
    "use strict";
    
    
    var utils = __webpack_require__(/*! ./utils */ "./node_modules/axios/lib/utils.js");
    var bind = __webpack_require__(/*! ./helpers/bind */ "./node_modules/axios/lib/helpers/bind.js");
    var Axios = __webpack_require__(/*! ./core/Axios */ "./node_modules/axios/lib/core/Axios.js");
    var mergeConfig = __webpack_require__(/*! ./core/mergeConfig */ "./node_modules/axios/lib/core/mergeConfig.js");
    var defaults = __webpack_require__(/*! ./defaults */ "./node_modules/axios/lib/defaults.js");
    
    /**
     * Create an instance of Axios
     *
     * @param {Object} defaultConfig The default config for the instance
     * @return {Axios} A new instance of Axios
     */
    function createInstance(defaultConfig) {
      var context = new Axios(defaultConfig);
      var instance = bind(Axios.prototype.request, context);
    
      // Copy axios.prototype to instance
      utils.extend(instance, Axios.prototype, context);
    
      // Copy context to instance
      utils.extend(instance, context);
    
      return instance;
    }
    
    // Create the default instance to be exported
    var axios = createInstance(defaults);
    
    // Expose Axios class to allow class inheritance
    axios.Axios = Axios;
    
    // Factory for creating new instances
    axios.create = function create(instanceConfig) {
      return createInstance(mergeConfig(axios.defaults, instanceConfig));
    };
    
    // Expose Cancel & CancelToken
    axios.Cancel = __webpack_require__(/*! ./cancel/Cancel */ "./node_modules/axios/lib/cancel/Cancel.js");
    axios.CancelToken = __webpack_require__(/*! ./cancel/CancelToken */ "./node_modules/axios/lib/cancel/CancelToken.js");
    axios.isCancel = __webpack_require__(/*! ./cancel/isCancel */ "./node_modules/axios/lib/cancel/isCancel.js");
    
    // Expose all/spread
    axios.all = function all(promises) {
      return Promise.all(promises);
    };
    axios.spread = __webpack_require__(/*! ./helpers/spread */ "./node_modules/axios/lib/helpers/spread.js");
    
    module.exports = axios;
    
    // Allow use of default import syntax in TypeScript
    module.exports.default = axios;
    
    
    /***/ }),
    
    /***/ "./node_modules/axios/lib/cancel/Cancel.js":
    /*!*************************************************!*\
      !*** ./node_modules/axios/lib/cancel/Cancel.js ***!
      \*************************************************/
    /*! no static exports found */
    /***/ (function(module, exports, __webpack_require__) {
    
    "use strict";
    
    
    /**
     * A `Cancel` is an object that is thrown when an operation is canceled.
     *
     * @class
     * @param {string=} message The message.
     */
    function Cancel(message) {
      this.message = message;
    }
    
    Cancel.prototype.toString = function toString() {
      return 'Cancel' + (this.message ? ': ' + this.message : '');
    };
    
    Cancel.prototype.__CANCEL__ = true;
    
    module.exports = Cancel;
    
    
    /***/ }),
    
    /***/ "./node_modules/axios/lib/cancel/CancelToken.js":
    /*!******************************************************!*\
      !*** ./node_modules/axios/lib/cancel/CancelToken.js ***!
      \******************************************************/
    /*! no static exports found */
    /***/ (function(module, exports, __webpack_require__) {
    
    "use strict";
    
    
    var Cancel = __webpack_require__(/*! ./Cancel */ "./node_modules/axios/lib/cancel/Cancel.js");
    
    /**
     * A `CancelToken` is an object that can be used to request cancellation of an operation.
     *
     * @class
     * @param {Function} executor The executor function.
     */
    function CancelToken(executor) {
      if (typeof executor !== 'function') {
        throw new TypeError('executor must be a function.');
      }
    
      var resolvePromise;
      this.promise = new Promise(function promiseExecutor(resolve) {
        resolvePromise = resolve;
      });
    
      var token = this;
      executor(function cancel(message) {
        if (token.reason) {
          // Cancellation has already been requested
          return;
        }
    
        token.reason = new Cancel(message);
        resolvePromise(token.reason);
      });
    }
    
    /**
     * Throws a `Cancel` if cancellation has been requested.
     */
    CancelToken.prototype.throwIfRequested = function throwIfRequested() {
      if (this.reason) {
        throw this.reason;
      }
    };
    
    /**
     * Returns an object that contains a new `CancelToken` and a function that, when called,
     * cancels the `CancelToken`.
     */
    CancelToken.source = function source() {
      var cancel;
      var token = new CancelToken(function executor(c) {
        cancel = c;
      });
      return {
        token: token,
        cancel: cancel
      };
    };
    
    module.exports = CancelToken;
    
    
    /***/ }),
    
    /***/ "./node_modules/axios/lib/cancel/isCancel.js":
    /*!***************************************************!*\
      !*** ./node_modules/axios/lib/cancel/isCancel.js ***!
      \***************************************************/
    /*! no static exports found */
    /***/ (function(module, exports, __webpack_require__) {
    
    "use strict";
    
    
    module.exports = function isCancel(value) {
      return !!(value && value.__CANCEL__);
    };
    
    
    /***/ }),
    
    /***/ "./node_modules/axios/lib/core/Axios.js":
    /*!**********************************************!*\
      !*** ./node_modules/axios/lib/core/Axios.js ***!
      \**********************************************/
    /*! no static exports found */
    /***/ (function(module, exports, __webpack_require__) {
    
    "use strict";
    
    
    var utils = __webpack_require__(/*! ./../utils */ "./node_modules/axios/lib/utils.js");
    var buildURL = __webpack_require__(/*! ../helpers/buildURL */ "./node_modules/axios/lib/helpers/buildURL.js");
    var InterceptorManager = __webpack_require__(/*! ./InterceptorManager */ "./node_modules/axios/lib/core/InterceptorManager.js");
    var dispatchRequest = __webpack_require__(/*! ./dispatchRequest */ "./node_modules/axios/lib/core/dispatchRequest.js");
    var mergeConfig = __webpack_require__(/*! ./mergeConfig */ "./node_modules/axios/lib/core/mergeConfig.js");
    
    /**
     * Create a new instance of Axios
     *
     * @param {Object} instanceConfig The default config for the instance
     */
    function Axios(instanceConfig) {
      this.defaults = instanceConfig;
      this.interceptors = {
        request: new InterceptorManager(),
        response: new InterceptorManager()
      };
    }
    
    /**
     * Dispatch a request
     *
     * @param {Object} config The config specific for this request (merged with this.defaults)
     */
    Axios.prototype.request = function request(config) {
      /*eslint no-param-reassign:0*/
      // Allow for axios('example/url'[, config]) a la fetch API
      if (typeof config === 'string') {
        config = arguments[1] || {};
        config.url = arguments[0];
      } else {
        config = config || {};
      }
    
      config = mergeConfig(this.defaults, config);
      config.method = config.method ? config.method.toLowerCase() : 'get';
    
      // Hook up interceptors middleware
      var chain = [dispatchRequest, undefined];
      var promise = Promise.resolve(config);
    
      this.interceptors.request.forEach(function unshiftRequestInterceptors(interceptor) {
        chain.unshift(interceptor.fulfilled, interceptor.rejected);
      });
    
      this.interceptors.response.forEach(function pushResponseInterceptors(interceptor) {
        chain.push(interceptor.fulfilled, interceptor.rejected);
      });
    
      while (chain.length) {
        promise = promise.then(chain.shift(), chain.shift());
      }
    
      return promise;
    };
    
    Axios.prototype.getUri = function getUri(config) {
      config = mergeConfig(this.defaults, config);
      return buildURL(config.url, config.params, config.paramsSerializer).replace(/^\?/, '');
    };
    
    // Provide aliases for supported request methods
    utils.forEach(['delete', 'get', 'head', 'options'], function forEachMethodNoData(method) {
      /*eslint func-names:0*/
      Axios.prototype[method] = function(url, config) {
        return this.request(utils.merge(config || {}, {
          method: method,
          url: url
        }));
      };
    });
    
    utils.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) {
      /*eslint func-names:0*/
      Axios.prototype[method] = function(url, data, config) {
        return this.request(utils.merge(config || {}, {
          method: method,
          url: url,
          data: data
        }));
      };
    });
    
    module.exports = Axios;
    
    
    /***/ }),
    
    /***/ "./node_modules/axios/lib/core/InterceptorManager.js":
    /*!***********************************************************!*\
      !*** ./node_modules/axios/lib/core/InterceptorManager.js ***!
      \***********************************************************/
    /*! no static exports found */
    /***/ (function(module, exports, __webpack_require__) {
    
    "use strict";
    
    
    var utils = __webpack_require__(/*! ./../utils */ "./node_modules/axios/lib/utils.js");
    
    function InterceptorManager() {
      this.handlers = [];
    }
    
    /**
     * Add a new interceptor to the stack
     *
     * @param {Function} fulfilled The function to handle `then` for a `Promise`
     * @param {Function} rejected The function to handle `reject` for a `Promise`
     *
     * @return {Number} An ID used to remove interceptor later
     */
    InterceptorManager.prototype.use = function use(fulfilled, rejected) {
      this.handlers.push({
        fulfilled: fulfilled,
        rejected: rejected
      });
      return this.handlers.length - 1;
    };
    
    /**
     * Remove an interceptor from the stack
     *
     * @param {Number} id The ID that was returned by `use`
     */
    InterceptorManager.prototype.eject = function eject(id) {
      if (this.handlers[id]) {
        this.handlers[id] = null;
      }
    };
    
    /**
     * Iterate over all the registered interceptors
     *
     * This method is particularly useful for skipping over any
     * interceptors that may have become `null` calling `eject`.
     *
     * @param {Function} fn The function to call for each interceptor
     */
    InterceptorManager.prototype.forEach = function forEach(fn) {
      utils.forEach(this.handlers, function forEachHandler(h) {
        if (h !== null) {
          fn(h);
        }
      });
    };
    
    module.exports = InterceptorManager;
    
    
    /***/ }),
    
    /***/ "./node_modules/axios/lib/core/createError.js":
    /*!****************************************************!*\
      !*** ./node_modules/axios/lib/core/createError.js ***!
      \****************************************************/
    /*! no static exports found */
    /***/ (function(module, exports, __webpack_require__) {
    
    "use strict";
    
    
    var enhanceError = __webpack_require__(/*! ./enhanceError */ "./node_modules/axios/lib/core/enhanceError.js");
    
    /**
     * Create an Error with the specified message, config, error code, request and response.
     *
     * @param {string} message The error message.
     * @param {Object} config The config.
     * @param {string} [code] The error code (for example, 'ECONNABORTED').
     * @param {Object} [request] The request.
     * @param {Object} [response] The response.
     * @returns {Error} The created error.
     */
    module.exports = function createError(message, config, code, request, response) {
      var error = new Error(message);
      return enhanceError(error, config, code, request, response);
    };
    
    
    /***/ }),
    
    /***/ "./node_modules/axios/lib/core/dispatchRequest.js":
    /*!********************************************************!*\
      !*** ./node_modules/axios/lib/core/dispatchRequest.js ***!
      \********************************************************/
    /*! no static exports found */
    /***/ (function(module, exports, __webpack_require__) {
    
    "use strict";
    
    
    var utils = __webpack_require__(/*! ./../utils */ "./node_modules/axios/lib/utils.js");
    var transformData = __webpack_require__(/*! ./transformData */ "./node_modules/axios/lib/core/transformData.js");
    var isCancel = __webpack_require__(/*! ../cancel/isCancel */ "./node_modules/axios/lib/cancel/isCancel.js");
    var defaults = __webpack_require__(/*! ../defaults */ "./node_modules/axios/lib/defaults.js");
    var isAbsoluteURL = __webpack_require__(/*! ./../helpers/isAbsoluteURL */ "./node_modules/axios/lib/helpers/isAbsoluteURL.js");
    var combineURLs = __webpack_require__(/*! ./../helpers/combineURLs */ "./node_modules/axios/lib/helpers/combineURLs.js");
    
    /**
     * Throws a `Cancel` if cancellation has been requested.
     */
    function throwIfCancellationRequested(config) {
      if (config.cancelToken) {
        config.cancelToken.throwIfRequested();
      }
    }
    
    /**
     * Dispatch a request to the server using the configured adapter.
     *
     * @param {object} config The config that is to be used for the request
     * @returns {Promise} The Promise to be fulfilled
     */
    module.exports = function dispatchRequest(config) {
      throwIfCancellationRequested(config);
    
      // Support baseURL config
      if (config.baseURL && !isAbsoluteURL(config.url)) {
        config.url = combineURLs(config.baseURL, config.url);
      }
    
      // Ensure headers exist
      config.headers = config.headers || {};
    
      // Transform request data
      config.data = transformData(
        config.data,
        config.headers,
        config.transformRequest
      );
    
      // Flatten headers
      config.headers = utils.merge(
        config.headers.common || {},
        config.headers[config.method] || {},
        config.headers || {}
      );
    
      utils.forEach(
        ['delete', 'get', 'head', 'post', 'put', 'patch', 'common'],
        function cleanHeaderConfig(method) {
          delete config.headers[method];
        }
      );
    
      var adapter = config.adapter || defaults.adapter;
    
      return adapter(config).then(function onAdapterResolution(response) {
        throwIfCancellationRequested(config);
    
        // Transform response data
        response.data = transformData(
          response.data,
          response.headers,
          config.transformResponse
        );
    
        return response;
      }, function onAdapterRejection(reason) {
        if (!isCancel(reason)) {
          throwIfCancellationRequested(config);
    
          // Transform response data
          if (reason && reason.response) {
            reason.response.data = transformData(
              reason.response.data,
              reason.response.headers,
              config.transformResponse
            );
          }
        }
    
        return Promise.reject(reason);
      });
    };
    
    
    /***/ }),
    
    /***/ "./node_modules/axios/lib/core/enhanceError.js":
    /*!*****************************************************!*\
      !*** ./node_modules/axios/lib/core/enhanceError.js ***!
      \*****************************************************/
    /*! no static exports found */
    /***/ (function(module, exports, __webpack_require__) {
    
    "use strict";
    
    
    /**
     * Update an Error with the specified config, error code, and response.
     *
     * @param {Error} error The error to update.
     * @param {Object} config The config.
     * @param {string} [code] The error code (for example, 'ECONNABORTED').
     * @param {Object} [request] The request.
     * @param {Object} [response] The response.
     * @returns {Error} The error.
     */
    module.exports = function enhanceError(error, config, code, request, response) {
      error.config = config;
      if (code) {
        error.code = code;
      }
    
      error.request = request;
      error.response = response;
      error.isAxiosError = true;
    
      error.toJSON = function() {
        return {
          // Standard
          message: this.message,
          name: this.name,
          // Microsoft
          description: this.description,
          number: this.number,
          // Mozilla
          fileName: this.fileName,
          lineNumber: this.lineNumber,
          columnNumber: this.columnNumber,
          stack: this.stack,
          // Axios
          config: this.config,
          code: this.code
        };
      };
      return error;
    };
    
    
    /***/ }),
    
    /***/ "./node_modules/axios/lib/core/mergeConfig.js":
    /*!****************************************************!*\
      !*** ./node_modules/axios/lib/core/mergeConfig.js ***!
      \****************************************************/
    /*! no static exports found */
    /***/ (function(module, exports, __webpack_require__) {
    
    "use strict";
    
    
    var utils = __webpack_require__(/*! ../utils */ "./node_modules/axios/lib/utils.js");
    
    /**
     * Config-specific merge-function which creates a new config-object
     * by merging two configuration objects together.
     *
     * @param {Object} config1
     * @param {Object} config2
     * @returns {Object} New object resulting from merging config2 to config1
     */
    module.exports = function mergeConfig(config1, config2) {
      // eslint-disable-next-line no-param-reassign
      config2 = config2 || {};
      var config = {};
    
      utils.forEach(['url', 'method', 'params', 'data'], function valueFromConfig2(prop) {
        if (typeof config2[prop] !== 'undefined') {
          config[prop] = config2[prop];
        }
      });
    
      utils.forEach(['headers', 'auth', 'proxy'], function mergeDeepProperties(prop) {
        if (utils.isObject(config2[prop])) {
          config[prop] = utils.deepMerge(config1[prop], config2[prop]);
        } else if (typeof config2[prop] !== 'undefined') {
          config[prop] = config2[prop];
        } else if (utils.isObject(config1[prop])) {
          config[prop] = utils.deepMerge(config1[prop]);
        } else if (typeof config1[prop] !== 'undefined') {
          config[prop] = config1[prop];
        }
      });
    
      utils.forEach([
        'baseURL', 'transformRequest', 'transformResponse', 'paramsSerializer',
        'timeout', 'withCredentials', 'adapter', 'responseType', 'xsrfCookieName',
        'xsrfHeaderName', 'onUploadProgress', 'onDownloadProgress', 'maxContentLength',
        'validateStatus', 'maxRedirects', 'httpAgent', 'httpsAgent', 'cancelToken',
        'socketPath'
      ], function defaultToConfig2(prop) {
        if (typeof config2[prop] !== 'undefined') {
          config[prop] = config2[prop];
        } else if (typeof config1[prop] !== 'undefined') {
          config[prop] = config1[prop];
        }
      });
    
      return config;
    };
    
    
    /***/ }),
    
    /***/ "./node_modules/axios/lib/core/settle.js":
    /*!***********************************************!*\
      !*** ./node_modules/axios/lib/core/settle.js ***!
      \***********************************************/
    /*! no static exports found */
    /***/ (function(module, exports, __webpack_require__) {
    
    "use strict";
    
    
    var createError = __webpack_require__(/*! ./createError */ "./node_modules/axios/lib/core/createError.js");
    
    /**
     * Resolve or reject a Promise based on response status.
     *
     * @param {Function} resolve A function that resolves the promise.
     * @param {Function} reject A function that rejects the promise.
     * @param {object} response The response.
     */
    module.exports = function settle(resolve, reject, response) {
      var validateStatus = response.config.validateStatus;
      if (!validateStatus || validateStatus(response.status)) {
        resolve(response);
      } else {
        reject(createError(
          'Request failed with status code ' + response.status,
          response.config,
          null,
          response.request,
          response
        ));
      }
    };
    
    
    /***/ }),
    
    /***/ "./node_modules/axios/lib/core/transformData.js":
    /*!******************************************************!*\
      !*** ./node_modules/axios/lib/core/transformData.js ***!
      \******************************************************/
    /*! no static exports found */
    /***/ (function(module, exports, __webpack_require__) {
    
    "use strict";
    
    
    var utils = __webpack_require__(/*! ./../utils */ "./node_modules/axios/lib/utils.js");
    
    /**
     * Transform the data for a request or a response
     *
     * @param {Object|String} data The data to be transformed
     * @param {Array} headers The headers for the request or response
     * @param {Array|Function} fns A single function or Array of functions
     * @returns {*} The resulting transformed data
     */
    module.exports = function transformData(data, headers, fns) {
      /*eslint no-param-reassign:0*/
      utils.forEach(fns, function transform(fn) {
        data = fn(data, headers);
      });
    
      return data;
    };
    
    
    /***/ }),
    
    /***/ "./node_modules/axios/lib/defaults.js":
    /*!********************************************!*\
      !*** ./node_modules/axios/lib/defaults.js ***!
      \********************************************/
    /*! no static exports found */
    /***/ (function(module, exports, __webpack_require__) {
    
    "use strict";
    /* WEBPACK VAR INJECTION */(function(process) {
    
    var utils = __webpack_require__(/*! ./utils */ "./node_modules/axios/lib/utils.js");
    var normalizeHeaderName = __webpack_require__(/*! ./helpers/normalizeHeaderName */ "./node_modules/axios/lib/helpers/normalizeHeaderName.js");
    
    var DEFAULT_CONTENT_TYPE = {
      'Content-Type': 'application/x-www-form-urlencoded'
    };
    
    function setContentTypeIfUnset(headers, value) {
      if (!utils.isUndefined(headers) && utils.isUndefined(headers['Content-Type'])) {
        headers['Content-Type'] = value;
      }
    }
    
    function getDefaultAdapter() {
      var adapter;
      // Only Node.JS has a process variable that is of [[Class]] process
      if (typeof process !== 'undefined' && Object.prototype.toString.call(process) === '[object process]') {
        // For node use HTTP adapter
        adapter = __webpack_require__(/*! ./adapters/http */ "./node_modules/axios/lib/adapters/xhr.js");
      } else if (typeof XMLHttpRequest !== 'undefined') {
        // For browsers use XHR adapter
        adapter = __webpack_require__(/*! ./adapters/xhr */ "./node_modules/axios/lib/adapters/xhr.js");
      }
      return adapter;
    }
    
    var defaults = {
      adapter: getDefaultAdapter(),
    
      transformRequest: [function transformRequest(data, headers) {
        normalizeHeaderName(headers, 'Accept');
        normalizeHeaderName(headers, 'Content-Type');
        if (utils.isFormData(data) ||
          utils.isArrayBuffer(data) ||
          utils.isBuffer(data) ||
          utils.isStream(data) ||
          utils.isFile(data) ||
          utils.isBlob(data)
        ) {
          return data;
        }
        if (utils.isArrayBufferView(data)) {
          return data.buffer;
        }
        if (utils.isURLSearchParams(data)) {
          setContentTypeIfUnset(headers, 'application/x-www-form-urlencoded;charset=utf-8');
          return data.toString();
        }
        if (utils.isObject(data)) {
          setContentTypeIfUnset(headers, 'application/json;charset=utf-8');
          return JSON.stringify(data);
        }
        return data;
      }],
    
      transformResponse: [function transformResponse(data) {
        /*eslint no-param-reassign:0*/
        if (typeof data === 'string') {
          try {
            data = JSON.parse(data);
          } catch (e) { /* Ignore */ }
        }
        return data;
      }],
    
      /**
       * A timeout in milliseconds to abort a request. If set to 0 (default) a
       * timeout is not created.
       */
      timeout: 0,
    
      xsrfCookieName: 'XSRF-TOKEN',
      xsrfHeaderName: 'X-XSRF-TOKEN',
    
      maxContentLength: -1,
    
      validateStatus: function validateStatus(status) {
        return status >= 200 && status < 300;
      }
    };
    
    defaults.headers = {
      common: {
        'Accept': 'application/json, text/plain, */*'
      }
    };
    
    utils.forEach(['delete', 'get', 'head'], function forEachMethodNoData(method) {
      defaults.headers[method] = {};
    });
    
    utils.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) {
      defaults.headers[method] = utils.merge(DEFAULT_CONTENT_TYPE);
    });
    
    module.exports = defaults;
    
    /* WEBPACK VAR INJECTION */}.call(this, __webpack_require__(/*! ./../../process/browser.js */ "./node_modules/process/browser.js")))
    
    /***/ }),
    
    /***/ "./node_modules/axios/lib/helpers/bind.js":
    /*!************************************************!*\
      !*** ./node_modules/axios/lib/helpers/bind.js ***!
      \************************************************/
    /*! no static exports found */
    /***/ (function(module, exports, __webpack_require__) {
    
    "use strict";
    
    
    module.exports = function bind(fn, thisArg) {
      return function wrap() {
        var args = new Array(arguments.length);
        for (var i = 0; i < args.length; i++) {
          args[i] = arguments[i];
        }
        return fn.apply(thisArg, args);
      };
    };
    
    
    /***/ }),
    
    /***/ "./node_modules/axios/lib/helpers/buildURL.js":
    /*!****************************************************!*\
      !*** ./node_modules/axios/lib/helpers/buildURL.js ***!
      \****************************************************/
    /*! no static exports found */
    /***/ (function(module, exports, __webpack_require__) {
    
    "use strict";
    
    
    var utils = __webpack_require__(/*! ./../utils */ "./node_modules/axios/lib/utils.js");
    
    function encode(val) {
      return encodeURIComponent(val).
        replace(/%40/gi, '@').
        replace(/%3A/gi, ':').
        replace(/%24/g, '$').
        replace(/%2C/gi, ',').
        replace(/%20/g, '+').
        replace(/%5B/gi, '[').
        replace(/%5D/gi, ']');
    }
    
    /**
     * Build a URL by appending params to the end
     *
     * @param {string} url The base of the url (e.g., http://www.google.com)
     * @param {object} [params] The params to be appended
     * @returns {string} The formatted url
     */
    module.exports = function buildURL(url, params, paramsSerializer) {
      /*eslint no-param-reassign:0*/
      if (!params) {
        return url;
      }
    
      var serializedParams;
      if (paramsSerializer) {
        serializedParams = paramsSerializer(params);
      } else if (utils.isURLSearchParams(params)) {
        serializedParams = params.toString();
      } else {
        var parts = [];
    
        utils.forEach(params, function serialize(val, key) {
          if (val === null || typeof val === 'undefined') {
            return;
          }
    
          if (utils.isArray(val)) {
            key = key + '[]';
          } else {
            val = [val];
          }
    
          utils.forEach(val, function parseValue(v) {
            if (utils.isDate(v)) {
              v = v.toISOString();
            } else if (utils.isObject(v)) {
              v = JSON.stringify(v);
            }
            parts.push(encode(key) + '=' + encode(v));
          });
        });
    
        serializedParams = parts.join('&');
      }
    
      if (serializedParams) {
        var hashmarkIndex = url.indexOf('#');
        if (hashmarkIndex !== -1) {
          url = url.slice(0, hashmarkIndex);
        }
    
        url += (url.indexOf('?') === -1 ? '?' : '&') + serializedParams;
      }
    
      return url;
    };
    
    
    /***/ }),
    
    /***/ "./node_modules/axios/lib/helpers/combineURLs.js":
    /*!*******************************************************!*\
      !*** ./node_modules/axios/lib/helpers/combineURLs.js ***!
      \*******************************************************/
    /*! no static exports found */
    /***/ (function(module, exports, __webpack_require__) {
    
    "use strict";
    
    
    /**
     * Creates a new URL by combining the specified URLs
     *
     * @param {string} baseURL The base URL
     * @param {string} relativeURL The relative URL
     * @returns {string} The combined URL
     */
    module.exports = function combineURLs(baseURL, relativeURL) {
      return relativeURL
        ? baseURL.replace(/\/+$/, '') + '/' + relativeURL.replace(/^\/+/, '')
        : baseURL;
    };
    
    
    /***/ }),
    
    /***/ "./node_modules/axios/lib/helpers/cookies.js":
    /*!***************************************************!*\
      !*** ./node_modules/axios/lib/helpers/cookies.js ***!
      \***************************************************/
    /*! no static exports found */
    /***/ (function(module, exports, __webpack_require__) {
    
    "use strict";
    
    
    var utils = __webpack_require__(/*! ./../utils */ "./node_modules/axios/lib/utils.js");
    
    module.exports = (
      utils.isStandardBrowserEnv() ?
    
      // Standard browser envs support document.cookie
        (function standardBrowserEnv() {
          return {
            write: function write(name, value, expires, path, domain, secure) {
              var cookie = [];
              cookie.push(name + '=' + encodeURIComponent(value));
    
              if (utils.isNumber(expires)) {
                cookie.push('expires=' + new Date(expires).toGMTString());
              }
    
              if (utils.isString(path)) {
                cookie.push('path=' + path);
              }
    
              if (utils.isString(domain)) {
                cookie.push('domain=' + domain);
              }
    
              if (secure === true) {
                cookie.push('secure');
              }
    
              document.cookie = cookie.join('; ');
            },
    
            read: function read(name) {
              var match = document.cookie.match(new RegExp('(^|;\\s*)(' + name + ')=([^;]*)'));
              return (match ? decodeURIComponent(match[3]) : null);
            },
    
            remove: function remove(name) {
              this.write(name, '', Date.now() - 86400000);
            }
          };
        })() :
    
      // Non standard browser env (web workers, react-native) lack needed support.
        (function nonStandardBrowserEnv() {
          return {
            write: function write() {},
            read: function read() { return null; },
            remove: function remove() {}
          };
        })()
    );
    
    
    /***/ }),
    
    /***/ "./node_modules/axios/lib/helpers/isAbsoluteURL.js":
    /*!*********************************************************!*\
      !*** ./node_modules/axios/lib/helpers/isAbsoluteURL.js ***!
      \*********************************************************/
    /*! no static exports found */
    /***/ (function(module, exports, __webpack_require__) {
    
    "use strict";
    
    
    /**
     * Determines whether the specified URL is absolute
     *
     * @param {string} url The URL to test
     * @returns {boolean} True if the specified URL is absolute, otherwise false
     */
    module.exports = function isAbsoluteURL(url) {
      // A URL is considered absolute if it begins with "<scheme>://" or "//" (protocol-relative URL).
      // RFC 3986 defines scheme name as a sequence of characters beginning with a letter and followed
      // by any combination of letters, digits, plus, period, or hyphen.
      return /^([a-z][a-z\d\+\-\.]*:)?\/\//i.test(url);
    };
    
    
    /***/ }),
    
    /***/ "./node_modules/axios/lib/helpers/isURLSameOrigin.js":
    /*!***********************************************************!*\
      !*** ./node_modules/axios/lib/helpers/isURLSameOrigin.js ***!
      \***********************************************************/
    /*! no static exports found */
    /***/ (function(module, exports, __webpack_require__) {
    
    "use strict";
    
    
    var utils = __webpack_require__(/*! ./../utils */ "./node_modules/axios/lib/utils.js");
    
    module.exports = (
      utils.isStandardBrowserEnv() ?
    
      // Standard browser envs have full support of the APIs needed to test
      // whether the request URL is of the same origin as current location.
        (function standardBrowserEnv() {
          var msie = /(msie|trident)/i.test(navigator.userAgent);
          var urlParsingNode = document.createElement('a');
          var originURL;
    
          /**
        * Parse a URL to discover it's components
        *
        * @param {String} url The URL to be parsed
        * @returns {Object}
        */
          function resolveURL(url) {
            var href = url;
    
            if (msie) {
            // IE needs attribute set twice to normalize properties
              urlParsingNode.setAttribute('href', href);
              href = urlParsingNode.href;
            }
    
            urlParsingNode.setAttribute('href', href);
    
            // urlParsingNode provides the UrlUtils interface - http://url.spec.whatwg.org/#urlutils
            return {
              href: urlParsingNode.href,
              protocol: urlParsingNode.protocol ? urlParsingNode.protocol.replace(/:$/, '') : '',
              host: urlParsingNode.host,
              search: urlParsingNode.search ? urlParsingNode.search.replace(/^\?/, '') : '',
              hash: urlParsingNode.hash ? urlParsingNode.hash.replace(/^#/, '') : '',
              hostname: urlParsingNode.hostname,
              port: urlParsingNode.port,
              pathname: (urlParsingNode.pathname.charAt(0) === '/') ?
                urlParsingNode.pathname :
                '/' + urlParsingNode.pathname
            };
          }
    
          originURL = resolveURL(window.location.href);
    
          /**
        * Determine if a URL shares the same origin as the current location
        *
        * @param {String} requestURL The URL to test
        * @returns {boolean} True if URL shares the same origin, otherwise false
        */
          return function isURLSameOrigin(requestURL) {
            var parsed = (utils.isString(requestURL)) ? resolveURL(requestURL) : requestURL;
            return (parsed.protocol === originURL.protocol &&
                parsed.host === originURL.host);
          };
        })() :
    
      // Non standard browser envs (web workers, react-native) lack needed support.
        (function nonStandardBrowserEnv() {
          return function isURLSameOrigin() {
            return true;
          };
        })()
    );
    
    
    /***/ }),
    
    /***/ "./node_modules/axios/lib/helpers/normalizeHeaderName.js":
    /*!***************************************************************!*\
      !*** ./node_modules/axios/lib/helpers/normalizeHeaderName.js ***!
      \***************************************************************/
    /*! no static exports found */
    /***/ (function(module, exports, __webpack_require__) {
    
    "use strict";
    
    
    var utils = __webpack_require__(/*! ../utils */ "./node_modules/axios/lib/utils.js");
    
    module.exports = function normalizeHeaderName(headers, normalizedName) {
      utils.forEach(headers, function processHeader(value, name) {
        if (name !== normalizedName && name.toUpperCase() === normalizedName.toUpperCase()) {
          headers[normalizedName] = value;
          delete headers[name];
        }
      });
    };
    
    
    /***/ }),
    
    /***/ "./node_modules/axios/lib/helpers/parseHeaders.js":
    /*!********************************************************!*\
      !*** ./node_modules/axios/lib/helpers/parseHeaders.js ***!
      \********************************************************/
    /*! no static exports found */
    /***/ (function(module, exports, __webpack_require__) {
    
    "use strict";
    
    
    var utils = __webpack_require__(/*! ./../utils */ "./node_modules/axios/lib/utils.js");
    
    // Headers whose duplicates are ignored by node
    // c.f. https://nodejs.org/api/http.html#http_message_headers
    var ignoreDuplicateOf = [
      'age', 'authorization', 'content-length', 'content-type', 'etag',
      'expires', 'from', 'host', 'if-modified-since', 'if-unmodified-since',
      'last-modified', 'location', 'max-forwards', 'proxy-authorization',
      'referer', 'retry-after', 'user-agent'
    ];
    
    /**
     * Parse headers into an object
     *
     * ```
     * Date: Wed, 27 Aug 2014 08:58:49 GMT
     * Content-Type: application/json
     * Connection: keep-alive
     * Transfer-Encoding: chunked
     * ```
     *
     * @param {String} headers Headers needing to be parsed
     * @returns {Object} Headers parsed into an object
     */
    module.exports = function parseHeaders(headers) {
      var parsed = {};
      var key;
      var val;
      var i;
    
      if (!headers) { return parsed; }
    
      utils.forEach(headers.split('\n'), function parser(line) {
        i = line.indexOf(':');
        key = utils.trim(line.substr(0, i)).toLowerCase();
        val = utils.trim(line.substr(i + 1));
    
        if (key) {
          if (parsed[key] && ignoreDuplicateOf.indexOf(key) >= 0) {
            return;
          }
          if (key === 'set-cookie') {
            parsed[key] = (parsed[key] ? parsed[key] : []).concat([val]);
          } else {
            parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val;
          }
        }
      });
    
      return parsed;
    };
    
    
    /***/ }),
    
    /***/ "./node_modules/axios/lib/helpers/spread.js":
    /*!**************************************************!*\
      !*** ./node_modules/axios/lib/helpers/spread.js ***!
      \**************************************************/
    /*! no static exports found */
    /***/ (function(module, exports, __webpack_require__) {
    
    "use strict";
    
    
    /**
     * Syntactic sugar for invoking a function and expanding an array for arguments.
     *
     * Common use case would be to use `Function.prototype.apply`.
     *
     *  ```js
     *  function f(x, y, z) {}
     *  var args = [1, 2, 3];
     *  f.apply(null, args);
     *  ```
     *
     * With `spread` this example can be re-written.
     *
     *  ```js
     *  spread(function(x, y, z) {})([1, 2, 3]);
     *  ```
     *
     * @param {Function} callback
     * @returns {Function}
     */
    module.exports = function spread(callback) {
      return function wrap(arr) {
        return callback.apply(null, arr);
      };
    };
    
    
    /***/ }),
    
    /***/ "./node_modules/axios/lib/utils.js":
    /*!*****************************************!*\
      !*** ./node_modules/axios/lib/utils.js ***!
      \*****************************************/
    /*! no static exports found */
    /***/ (function(module, exports, __webpack_require__) {
    
    "use strict";
    
    
    var bind = __webpack_require__(/*! ./helpers/bind */ "./node_modules/axios/lib/helpers/bind.js");
    var isBuffer = __webpack_require__(/*! is-buffer */ "./node_modules/is-buffer/index.js");
    
    /*global toString:true*/
    
    // utils is a library of generic helper functions non-specific to axios
    
    var toString = Object.prototype.toString;
    
    /**
     * Determine if a value is an Array
     *
     * @param {Object} val The value to test
     * @returns {boolean} True if value is an Array, otherwise false
     */
    function isArray(val) {
      return toString.call(val) === '[object Array]';
    }
    
    /**
     * Determine if a value is an ArrayBuffer
     *
     * @param {Object} val The value to test
     * @returns {boolean} True if value is an ArrayBuffer, otherwise false
     */
    function isArrayBuffer(val) {
      return toString.call(val) === '[object ArrayBuffer]';
    }
    
    /**
     * Determine if a value is a FormData
     *
     * @param {Object} val The value to test
     * @returns {boolean} True if value is an FormData, otherwise false
     */
    function isFormData(val) {
      return (typeof FormData !== 'undefined') && (val instanceof FormData);
    }
    
    /**
     * Determine if a value is a view on an ArrayBuffer
     *
     * @param {Object} val The value to test
     * @returns {boolean} True if value is a view on an ArrayBuffer, otherwise false
     */
    function isArrayBufferView(val) {
      var result;
      if ((typeof ArrayBuffer !== 'undefined') && (ArrayBuffer.isView)) {
        result = ArrayBuffer.isView(val);
      } else {
        result = (val) && (val.buffer) && (val.buffer instanceof ArrayBuffer);
      }
      return result;
    }
    
    /**
     * Determine if a value is a String
     *
     * @param {Object} val The value to test
     * @returns {boolean} True if value is a String, otherwise false
     */
    function isString(val) {
      return typeof val === 'string';
    }
    
    /**
     * Determine if a value is a Number
     *
     * @param {Object} val The value to test
     * @returns {boolean} True if value is a Number, otherwise false
     */
    function isNumber(val) {
      return typeof val === 'number';
    }
    
    /**
     * Determine if a value is undefined
     *
     * @param {Object} val The value to test
     * @returns {boolean} True if the value is undefined, otherwise false
     */
    function isUndefined(val) {
      return typeof val === 'undefined';
    }
    
    /**
     * Determine if a value is an Object
     *
     * @param {Object} val The value to test
     * @returns {boolean} True if value is an Object, otherwise false
     */
    function isObject(val) {
      return val !== null && typeof val === 'object';
    }
    
    /**
     * Determine if a value is a Date
     *
     * @param {Object} val The value to test
     * @returns {boolean} True if value is a Date, otherwise false
     */
    function isDate(val) {
      return toString.call(val) === '[object Date]';
    }
    
    /**
     * Determine if a value is a File
     *
     * @param {Object} val The value to test
     * @returns {boolean} True if value is a File, otherwise false
     */
    function isFile(val) {
      return toString.call(val) === '[object File]';
    }
    
    /**
     * Determine if a value is a Blob
     *
     * @param {Object} val The value to test
     * @returns {boolean} True if value is a Blob, otherwise false
     */
    function isBlob(val) {
      return toString.call(val) === '[object Blob]';
    }
    
    /**
     * Determine if a value is a Function
     *
     * @param {Object} val The value to test
     * @returns {boolean} True if value is a Function, otherwise false
     */
    function isFunction(val) {
      return toString.call(val) === '[object Function]';
    }
    
    /**
     * Determine if a value is a Stream
     *
     * @param {Object} val The value to test
     * @returns {boolean} True if value is a Stream, otherwise false
     */
    function isStream(val) {
      return isObject(val) && isFunction(val.pipe);
    }
    
    /**
     * Determine if a value is a URLSearchParams object
     *
     * @param {Object} val The value to test
     * @returns {boolean} True if value is a URLSearchParams object, otherwise false
     */
    function isURLSearchParams(val) {
      return typeof URLSearchParams !== 'undefined' && val instanceof URLSearchParams;
    }
    
    /**
     * Trim excess whitespace off the beginning and end of a string
     *
     * @param {String} str The String to trim
     * @returns {String} The String freed of excess whitespace
     */
    function trim(str) {
      return str.replace(/^\s*/, '').replace(/\s*$/, '');
    }
    
    /**
     * Determine if we're running in a standard browser environment
     *
     * This allows axios to run in a web worker, and react-native.
     * Both environments support XMLHttpRequest, but not fully standard globals.
     *
     * web workers:
     *  typeof window -> undefined
     *  typeof document -> undefined
     *
     * react-native:
     *  navigator.product -> 'ReactNative'
     * nativescript
     *  navigator.product -> 'NativeScript' or 'NS'
     */
    function isStandardBrowserEnv() {
      if (typeof navigator !== 'undefined' && (navigator.product === 'ReactNative' ||
                                               navigator.product === 'NativeScript' ||
                                               navigator.product === 'NS')) {
        return false;
      }
      return (
        typeof window !== 'undefined' &&
        typeof document !== 'undefined'
      );
    }
    
    /**
     * Iterate over an Array or an Object invoking a function for each item.
     *
     * If `obj` is an Array callback will be called passing
     * the value, index, and complete array for each item.
     *
     * If 'obj' is an Object callback will be called passing
     * the value, key, and complete object for each property.
     *
     * @param {Object|Array} obj The object to iterate
     * @param {Function} fn The callback to invoke for each item
     */
    function forEach(obj, fn) {
      // Don't bother if no value provided
      if (obj === null || typeof obj === 'undefined') {
        return;
      }
    
      // Force an array if not already something iterable
      if (typeof obj !== 'object') {
        /*eslint no-param-reassign:0*/
        obj = [obj];
      }
    
      if (isArray(obj)) {
        // Iterate over array values
        for (var i = 0, l = obj.length; i < l; i++) {
          fn.call(null, obj[i], i, obj);
        }
      } else {
        // Iterate over object keys
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key)) {
            fn.call(null, obj[key], key, obj);
          }
        }
      }
    }
    
    /**
     * Accepts varargs expecting each argument to be an object, then
     * immutably merges the properties of each object and returns result.
     *
     * When multiple objects contain the same key the later object in
     * the arguments list will take precedence.
     *
     * Example:
     *
     * ```js
     * var result = merge({foo: 123}, {foo: 456});
     * console.log(result.foo); // outputs 456
     * ```
     *
     * @param {Object} obj1 Object to merge
     * @returns {Object} Result of all merge properties
     */
    function merge(/* obj1, obj2, obj3, ... */) {
      var result = {};
      function assignValue(val, key) {
        if (typeof result[key] === 'object' && typeof val === 'object') {
          result[key] = merge(result[key], val);
        } else {
          result[key] = val;
        }
      }
    
      for (var i = 0, l = arguments.length; i < l; i++) {
        forEach(arguments[i], assignValue);
      }
      return result;
    }
    
    /**
     * Function equal to merge with the difference being that no reference
     * to original objects is kept.
     *
     * @see merge
     * @param {Object} obj1 Object to merge
     * @returns {Object} Result of all merge properties
     */
    function deepMerge(/* obj1, obj2, obj3, ... */) {
      var result = {};
      function assignValue(val, key) {
        if (typeof result[key] === 'object' && typeof val === 'object') {
          result[key] = deepMerge(result[key], val);
        } else if (typeof val === 'object') {
          result[key] = deepMerge({}, val);
        } else {
          result[key] = val;
        }
      }
    
      for (var i = 0, l = arguments.length; i < l; i++) {
        forEach(arguments[i], assignValue);
      }
      return result;
    }
    
    /**
     * Extends object a by mutably adding to it the properties of object b.
     *
     * @param {Object} a The object to be extended
     * @param {Object} b The object to copy properties from
     * @param {Object} thisArg The object to bind function to
     * @return {Object} The resulting value of object a
     */
    function extend(a, b, thisArg) {
      forEach(b, function assignValue(val, key) {
        if (thisArg && typeof val === 'function') {
          a[key] = bind(val, thisArg);
        } else {
          a[key] = val;
        }
      });
      return a;
    }
    
    module.exports = {
      isArray: isArray,
      isArrayBuffer: isArrayBuffer,
      isBuffer: isBuffer,
      isFormData: isFormData,
      isArrayBufferView: isArrayBufferView,
      isString: isString,
      isNumber: isNumber,
      isObject: isObject,
      isUndefined: isUndefined,
      isDate: isDate,
      isFile: isFile,
      isBlob: isBlob,
      isFunction: isFunction,
      isStream: isStream,
      isURLSearchParams: isURLSearchParams,
      isStandardBrowserEnv: isStandardBrowserEnv,
      forEach: forEach,
      merge: merge,
      deepMerge: deepMerge,
      extend: extend,
      trim: trim
    };
    
    
    /***/ }),
    
    /***/ "./node_modules/bootstrap/dist/js/bootstrap.js":
    /*!*****************************************************!*\
      !*** ./node_modules/bootstrap/dist/js/bootstrap.js ***!
      \*****************************************************/
    /*! no static exports found */
    /***/ (function(module, exports, __webpack_require__) {
    
    /*!
      * Bootstrap v4.3.1 (https://getbootstrap.com/)
      * Copyright 2011-2019 The Bootstrap Authors (https://github.com/twbs/bootstrap/graphs/contributors)
      * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
      */
    (function (global, factory) {
       true ? factory(exports, __webpack_require__(/*! jquery */ "./node_modules/jquery/dist/jquery.js"), __webpack_require__(/*! popper.js */ "./node_modules/popper.js/dist/esm/popper.js")) :
      undefined;
    }(this, function (exports, $, Popper) { 'use strict';
    
      $ = $ && $.hasOwnProperty('default') ? $['default'] : $;
      Popper = Popper && Popper.hasOwnProperty('default') ? Popper['default'] : Popper;
    
      function _defineProperties(target, props) {
        for (var i = 0; i < props.length; i++) {
          var descriptor = props[i];
          descriptor.enumerable = descriptor.enumerable || false;
          descriptor.configurable = true;
          if ("value" in descriptor) descriptor.writable = true;
          Object.defineProperty(target, descriptor.key, descriptor);
        }
      }
    
      function _createClass(Constructor, protoProps, staticProps) {
        if (protoProps) _defineProperties(Constructor.prototype, protoProps);
        if (staticProps) _defineProperties(Constructor, staticProps);
        return Constructor;
      }
    
      function _defineProperty(obj, key, value) {
        if (key in obj) {
          Object.defineProperty(obj, key, {
            value: value,
            enumerable: true,
            configurable: true,
            writable: true
          });
        } else {
          obj[key] = value;
        }
    
        return obj;
      }
    
      function _objectSpread(target) {
        for (var i = 1; i < arguments.length; i++) {
          var source = arguments[i] != null ? arguments[i] : {};
          var ownKeys = Object.keys(source);
    
          if (typeof Object.getOwnPropertySymbols === 'function') {
            ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) {
              return Object.getOwnPropertyDescriptor(source, sym).enumerable;
            }));
          }
    
          ownKeys.forEach(function (key) {
            _defineProperty(target, key, source[key]);
          });
        }
    
        return target;
      }
    
      function _inheritsLoose(subClass, superClass) {
        subClass.prototype = Object.create(superClass.prototype);
        subClass.prototype.constructor = subClass;
        subClass.__proto__ = superClass;
      }
    
      /**
       * --------------------------------------------------------------------------
       * Bootstrap (v4.3.1): util.js
       * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
       * --------------------------------------------------------------------------
       */
      /**
       * ------------------------------------------------------------------------
       * Private TransitionEnd Helpers
       * ------------------------------------------------------------------------
       */
    
      var TRANSITION_END = 'transitionend';
      var MAX_UID = 1000000;
      var MILLISECONDS_MULTIPLIER = 1000; // Shoutout AngusCroll (https://goo.gl/pxwQGp)
    
      function toType(obj) {
        return {}.toString.call(obj).match(/\s([a-z]+)/i)[1].toLowerCase();
      }
    
      function getSpecialTransitionEndEvent() {
        return {
          bindType: TRANSITION_END,
          delegateType: TRANSITION_END,
          handle: function handle(event) {
            if ($(event.target).is(this)) {
              return event.handleObj.handler.apply(this, arguments); // eslint-disable-line prefer-rest-params
            }
    
            return undefined; // eslint-disable-line no-undefined
          }
        };
      }
    
      function transitionEndEmulator(duration) {
        var _this = this;
    
        var called = false;
        $(this).one(Util.TRANSITION_END, function () {
          called = true;
        });
        setTimeout(function () {
          if (!called) {
            Util.triggerTransitionEnd(_this);
          }
        }, duration);
        return this;
      }
    
      function setTransitionEndSupport() {
        $.fn.emulateTransitionEnd = transitionEndEmulator;
        $.event.special[Util.TRANSITION_END] = getSpecialTransitionEndEvent();
      }
      /**
       * --------------------------------------------------------------------------
       * Public Util Api
       * --------------------------------------------------------------------------
       */
    
    
      var Util = {
        TRANSITION_END: 'bsTransitionEnd',
        getUID: function getUID(prefix) {
          do {
            // eslint-disable-next-line no-bitwise
            prefix += ~~(Math.random() * MAX_UID); // "~~" acts like a faster Math.floor() here
          } while (document.getElementById(prefix));
    
          return prefix;
        },
        getSelectorFromElement: function getSelectorFromElement(element) {
          var selector = element.getAttribute('data-target');
    
          if (!selector || selector === '#') {
            var hrefAttr = element.getAttribute('href');
            selector = hrefAttr && hrefAttr !== '#' ? hrefAttr.trim() : '';
          }
    
          try {
            return document.querySelector(selector) ? selector : null;
          } catch (err) {
            return null;
          }
        },
        getTransitionDurationFromElement: function getTransitionDurationFromElement(element) {
          if (!element) {
            return 0;
          } // Get transition-duration of the element
    
    
          var transitionDuration = $(element).css('transition-duration');
          var transitionDelay = $(element).css('transition-delay');
          var floatTransitionDuration = parseFloat(transitionDuration);
          var floatTransitionDelay = parseFloat(transitionDelay); // Return 0 if element or transition duration is not found
    
          if (!floatTransitionDuration && !floatTransitionDelay) {
            return 0;
          } // If multiple durations are defined, take the first
    
    
          transitionDuration = transitionDuration.split(',')[0];
          transitionDelay = transitionDelay.split(',')[0];
          return (parseFloat(transitionDuration) + parseFloat(transitionDelay)) * MILLISECONDS_MULTIPLIER;
        },
        reflow: function reflow(element) {
          return element.offsetHeight;
        },
        triggerTransitionEnd: function triggerTransitionEnd(element) {
          $(element).trigger(TRANSITION_END);
        },
        // TODO: Remove in v5
        supportsTransitionEnd: function supportsTransitionEnd() {
          return Boolean(TRANSITION_END);
        },
        isElement: function isElement(obj) {
          return (obj[0] || obj).nodeType;
        },
        typeCheckConfig: function typeCheckConfig(componentName, config, configTypes) {
          for (var property in configTypes) {
            if (Object.prototype.hasOwnProperty.call(configTypes, property)) {
              var expectedTypes = configTypes[property];
              var value = config[property];
              var valueType = value && Util.isElement(value) ? 'element' : toType(value);
    
              if (!new RegExp(expectedTypes).test(valueType)) {
                throw new Error(componentName.toUpperCase() + ": " + ("Option \"" + property + "\" provided type \"" + valueType + "\" ") + ("but expected type \"" + expectedTypes + "\"."));
              }
            }
          }
        },
        findShadowRoot: function findShadowRoot(element) {
          if (!document.documentElement.attachShadow) {
            return null;
          } // Can find the shadow root otherwise it'll return the document
    
    
          if (typeof element.getRootNode === 'function') {
            var root = element.getRootNode();
            return root instanceof ShadowRoot ? root : null;
          }
    
          if (element instanceof ShadowRoot) {
            return element;
          } // when we don't find a shadow root
    
    
          if (!element.parentNode) {
            return null;
          }
    
          return Util.findShadowRoot(element.parentNode);
        }
      };
      setTransitionEndSupport();
    
      /**
       * ------------------------------------------------------------------------
       * Constants
       * ------------------------------------------------------------------------
       */
    
      var NAME = 'alert';
      var VERSION = '4.3.1';
      var DATA_KEY = 'bs.alert';
      var EVENT_KEY = "." + DATA_KEY;
      var DATA_API_KEY = '.data-api';
      var JQUERY_NO_CONFLICT = $.fn[NAME];
      var Selector = {
        DISMISS: '[data-dismiss="alert"]'
      };
      var Event = {
        CLOSE: "close" + EVENT_KEY,
        CLOSED: "closed" + EVENT_KEY,
        CLICK_DATA_API: "click" + EVENT_KEY + DATA_API_KEY
      };
      var ClassName = {
        ALERT: 'alert',
        FADE: 'fade',
        SHOW: 'show'
        /**
         * ------------------------------------------------------------------------
         * Class Definition
         * ------------------------------------------------------------------------
         */
    
      };
    
      var Alert =
      /*#__PURE__*/
      function () {
        function Alert(element) {
          this._element = element;
        } // Getters
    
    
        var _proto = Alert.prototype;
    
        // Public
        _proto.close = function close(element) {
          var rootElement = this._element;
    
          if (element) {
            rootElement = this._getRootElement(element);
          }
    
          var customEvent = this._triggerCloseEvent(rootElement);
    
          if (customEvent.isDefaultPrevented()) {
            return;
          }
    
          this._removeElement(rootElement);
        };
    
        _proto.dispose = function dispose() {
          $.removeData(this._element, DATA_KEY);
          this._element = null;
        } // Private
        ;
    
        _proto._getRootElement = function _getRootElement(element) {
          var selector = Util.getSelectorFromElement(element);
          var parent = false;
    
          if (selector) {
            parent = document.querySelector(selector);
          }
    
          if (!parent) {
            parent = $(element).closest("." + ClassName.ALERT)[0];
          }
    
          return parent;
        };
    
        _proto._triggerCloseEvent = function _triggerCloseEvent(element) {
          var closeEvent = $.Event(Event.CLOSE);
          $(element).trigger(closeEvent);
          return closeEvent;
        };
    
        _proto._removeElement = function _removeElement(element) {
          var _this = this;
    
          $(element).removeClass(ClassName.SHOW);
    
          if (!$(element).hasClass(ClassName.FADE)) {
            this._destroyElement(element);
    
            return;
          }
    
          var transitionDuration = Util.getTransitionDurationFromElement(element);
          $(element).one(Util.TRANSITION_END, function (event) {
            return _this._destroyElement(element, event);
          }).emulateTransitionEnd(transitionDuration);
        };
    
        _proto._destroyElement = function _destroyElement(element) {
          $(element).detach().trigger(Event.CLOSED).remove();
        } // Static
        ;
    
        Alert._jQueryInterface = function _jQueryInterface(config) {
          return this.each(function () {
            var $element = $(this);
            var data = $element.data(DATA_KEY);
    
            if (!data) {
              data = new Alert(this);
              $element.data(DATA_KEY, data);
            }
    
            if (config === 'close') {
              data[config](this);
            }
          });
        };
    
        Alert._handleDismiss = function _handleDismiss(alertInstance) {
          return function (event) {
            if (event) {
              event.preventDefault();
            }
    
            alertInstance.close(this);
          };
        };
    
        _createClass(Alert, null, [{
          key: "VERSION",
          get: function get() {
            return VERSION;
          }
        }]);
    
        return Alert;
      }();
      /**
       * ------------------------------------------------------------------------
       * Data Api implementation
       * ------------------------------------------------------------------------
       */
    
    
      $(document).on(Event.CLICK_DATA_API, Selector.DISMISS, Alert._handleDismiss(new Alert()));
      /**
       * ------------------------------------------------------------------------
       * jQuery
       * ------------------------------------------------------------------------
       */
    
      $.fn[NAME] = Alert._jQueryInterface;
      $.fn[NAME].Constructor = Alert;
    
      $.fn[NAME].noConflict = function () {
        $.fn[NAME] = JQUERY_NO_CONFLICT;
        return Alert._jQueryInterface;
      };
    
      /**
       * ------------------------------------------------------------------------
       * Constants
       * ------------------------------------------------------------------------
       */
    
      var NAME$1 = 'button';
      var VERSION$1 = '4.3.1';
      var DATA_KEY$1 = 'bs.button';
      var EVENT_KEY$1 = "." + DATA_KEY$1;
      var DATA_API_KEY$1 = '.data-api';
      var JQUERY_NO_CONFLICT$1 = $.fn[NAME$1];
      var ClassName$1 = {
        ACTIVE: 'active',
        BUTTON: 'btn',
        FOCUS: 'focus'
      };
      var Selector$1 = {
        DATA_TOGGLE_CARROT: '[data-toggle^="button"]',
        DATA_TOGGLE: '[data-toggle="buttons"]',
        INPUT: 'input:not([type="hidden"])',
        ACTIVE: '.active',
        BUTTON: '.btn'
      };
      var Event$1 = {
        CLICK_DATA_API: "click" + EVENT_KEY$1 + DATA_API_KEY$1,
        FOCUS_BLUR_DATA_API: "focus" + EVENT_KEY$1 + DATA_API_KEY$1 + " " + ("blur" + EVENT_KEY$1 + DATA_API_KEY$1)
        /**
         * ------------------------------------------------------------------------
         * Class Definition
         * ------------------------------------------------------------------------
         */
    
      };
    
      var Button =
      /*#__PURE__*/
      function () {
        function Button(element) {
          this._element = element;
        } // Getters
    
    
        var _proto = Button.prototype;
    
        // Public
        _proto.toggle = function toggle() {
          var triggerChangeEvent = true;
          var addAriaPressed = true;
          var rootElement = $(this._element).closest(Selector$1.DATA_TOGGLE)[0];
    
          if (rootElement) {
            var input = this._element.querySelector(Selector$1.INPUT);
    
            if (input) {
              if (input.type === 'radio') {
                if (input.checked && this._element.classList.contains(ClassName$1.ACTIVE)) {
                  triggerChangeEvent = false;
                } else {
                  var activeElement = rootElement.querySelector(Selector$1.ACTIVE);
    
                  if (activeElement) {
                    $(activeElement).removeClass(ClassName$1.ACTIVE);
                  }
                }
              }
    
              if (triggerChangeEvent) {
                if (input.hasAttribute('disabled') || rootElement.hasAttribute('disabled') || input.classList.contains('disabled') || rootElement.classList.contains('disabled')) {
                  return;
                }
    
                input.checked = !this._element.classList.contains(ClassName$1.ACTIVE);
                $(input).trigger('change');
              }
    
              input.focus();
              addAriaPressed = false;
            }
          }
    
          if (addAriaPressed) {
            this._element.setAttribute('aria-pressed', !this._element.classList.contains(ClassName$1.ACTIVE));
          }
    
          if (triggerChangeEvent) {
            $(this._element).toggleClass(ClassName$1.ACTIVE);
          }
        };
    
        _proto.dispose = function dispose() {
          $.removeData(this._element, DATA_KEY$1);
          this._element = null;
        } // Static
        ;
    
        Button._jQueryInterface = function _jQueryInterface(config) {
          return this.each(function () {
            var data = $(this).data(DATA_KEY$1);
    
            if (!data) {
              data = new Button(this);
              $(this).data(DATA_KEY$1, data);
            }
    
            if (config === 'toggle') {
              data[config]();
            }
          });
        };
    
        _createClass(Button, null, [{
          key: "VERSION",
          get: function get() {
            return VERSION$1;
          }
        }]);
    
        return Button;
      }();
      /**
       * ------------------------------------------------------------------------
       * Data Api implementation
       * ------------------------------------------------------------------------
       */
    
    
      $(document).on(Event$1.CLICK_DATA_API, Selector$1.DATA_TOGGLE_CARROT, function (event) {
        event.preventDefault();
        var button = event.target;
    
        if (!$(button).hasClass(ClassName$1.BUTTON)) {
          button = $(button).closest(Selector$1.BUTTON);
        }
    
        Button._jQueryInterface.call($(button), 'toggle');
      }).on(Event$1.FOCUS_BLUR_DATA_API, Selector$1.DATA_TOGGLE_CARROT, function (event) {
        var button = $(event.target).closest(Selector$1.BUTTON)[0];
        $(button).toggleClass(ClassName$1.FOCUS, /^focus(in)?$/.test(event.type));
      });
      /**
       * ------------------------------------------------------------------------
       * jQuery
       * ------------------------------------------------------------------------
       */
    
      $.fn[NAME$1] = Button._jQueryInterface;
      $.fn[NAME$1].Constructor = Button;
    
      $.fn[NAME$1].noConflict = function () {
        $.fn[NAME$1] = JQUERY_NO_CONFLICT$1;
        return Button._jQueryInterface;
      };
    
      /**
       * ------------------------------------------------------------------------
       * Constants
       * ------------------------------------------------------------------------
       */
    
      var NAME$2 = 'carousel';
      var VERSION$2 = '4.3.1';
      var DATA_KEY$2 = 'bs.carousel';
      var EVENT_KEY$2 = "." + DATA_KEY$2;
      var DATA_API_KEY$2 = '.data-api';
      var JQUERY_NO_CONFLICT$2 = $.fn[NAME$2];
      var ARROW_LEFT_KEYCODE = 37; // KeyboardEvent.which value for left arrow key
    
      var ARROW_RIGHT_KEYCODE = 39; // KeyboardEvent.which value for right arrow key
    
      var TOUCHEVENT_COMPAT_WAIT = 500; // Time for mouse compat events to fire after touch
    
      var SWIPE_THRESHOLD = 40;
      var Default = {
        interval: 5000,
        keyboard: true,
        slide: false,
        pause: 'hover',
        wrap: true,
        touch: true
      };
      var DefaultType = {
        interval: '(number|boolean)',
        keyboard: 'boolean',
        slide: '(boolean|string)',
        pause: '(string|boolean)',
        wrap: 'boolean',
        touch: 'boolean'
      };
      var Direction = {
        NEXT: 'next',
        PREV: 'prev',
        LEFT: 'left',
        RIGHT: 'right'
      };
      var Event$2 = {
        SLIDE: "slide" + EVENT_KEY$2,
        SLID: "slid" + EVENT_KEY$2,
        KEYDOWN: "keydown" + EVENT_KEY$2,
        MOUSEENTER: "mouseenter" + EVENT_KEY$2,
        MOUSELEAVE: "mouseleave" + EVENT_KEY$2,
        TOUCHSTART: "touchstart" + EVENT_KEY$2,
        TOUCHMOVE: "touchmove" + EVENT_KEY$2,
        TOUCHEND: "touchend" + EVENT_KEY$2,
        POINTERDOWN: "pointerdown" + EVENT_KEY$2,
        POINTERUP: "pointerup" + EVENT_KEY$2,
        DRAG_START: "dragstart" + EVENT_KEY$2,
        LOAD_DATA_API: "load" + EVENT_KEY$2 + DATA_API_KEY$2,
        CLICK_DATA_API: "click" + EVENT_KEY$2 + DATA_API_KEY$2
      };
      var ClassName$2 = {
        CAROUSEL: 'carousel',
        ACTIVE: 'active',
        SLIDE: 'slide',
        RIGHT: 'carousel-item-right',
        LEFT: 'carousel-item-left',
        NEXT: 'carousel-item-next',
        PREV: 'carousel-item-prev',
        ITEM: 'carousel-item',
        POINTER_EVENT: 'pointer-event'
      };
      var Selector$2 = {
        ACTIVE: '.active',
        ACTIVE_ITEM: '.active.carousel-item',
        ITEM: '.carousel-item',
        ITEM_IMG: '.carousel-item img',
        NEXT_PREV: '.carousel-item-next, .carousel-item-prev',
        INDICATORS: '.carousel-indicators',
        DATA_SLIDE: '[data-slide], [data-slide-to]',
        DATA_RIDE: '[data-ride="carousel"]'
      };
      var PointerType = {
        TOUCH: 'touch',
        PEN: 'pen'
        /**
         * ------------------------------------------------------------------------
         * Class Definition
         * ------------------------------------------------------------------------
         */
    
      };
    
      var Carousel =
      /*#__PURE__*/
      function () {
        function Carousel(element, config) {
          this._items = null;
          this._interval = null;
          this._activeElement = null;
          this._isPaused = false;
          this._isSliding = false;
          this.touchTimeout = null;
          this.touchStartX = 0;
          this.touchDeltaX = 0;
          this._config = this._getConfig(config);
          this._element = element;
          this._indicatorsElement = this._element.querySelector(Selector$2.INDICATORS);
          this._touchSupported = 'ontouchstart' in document.documentElement || navigator.maxTouchPoints > 0;
          this._pointerEvent = Boolean(window.PointerEvent || window.MSPointerEvent);
    
          this._addEventListeners();
        } // Getters
    
    
        var _proto = Carousel.prototype;
    
        // Public
        _proto.next = function next() {
          if (!this._isSliding) {
            this._slide(Direction.NEXT);
          }
        };
    
        _proto.nextWhenVisible = function nextWhenVisible() {
          // Don't call next when the page isn't visible
          // or the carousel or its parent isn't visible
          if (!document.hidden && $(this._element).is(':visible') && $(this._element).css('visibility') !== 'hidden') {
            this.next();
          }
        };
    
        _proto.prev = function prev() {
          if (!this._isSliding) {
            this._slide(Direction.PREV);
          }
        };
    
        _proto.pause = function pause(event) {
          if (!event) {
            this._isPaused = true;
          }
    
          if (this._element.querySelector(Selector$2.NEXT_PREV)) {
            Util.triggerTransitionEnd(this._element);
            this.cycle(true);
          }
    
          clearInterval(this._interval);
          this._interval = null;
        };
    
        _proto.cycle = function cycle(event) {
          if (!event) {
            this._isPaused = false;
          }
    
          if (this._interval) {
            clearInterval(this._interval);
            this._interval = null;
          }
    
          if (this._config.interval && !this._isPaused) {
            this._interval = setInterval((document.visibilityState ? this.nextWhenVisible : this.next).bind(this), this._config.interval);
          }
        };
    
        _proto.to = function to(index) {
          var _this = this;
    
          this._activeElement = this._element.querySelector(Selector$2.ACTIVE_ITEM);
    
          var activeIndex = this._getItemIndex(this._activeElement);
    
          if (index > this._items.length - 1 || index < 0) {
            return;
          }
    
          if (this._isSliding) {
            $(this._element).one(Event$2.SLID, function () {
              return _this.to(index);
            });
            return;
          }
    
          if (activeIndex === index) {
            this.pause();
            this.cycle();
            return;
          }
    
          var direction = index > activeIndex ? Direction.NEXT : Direction.PREV;
    
          this._slide(direction, this._items[index]);
        };
    
        _proto.dispose = function dispose() {
          $(this._element).off(EVENT_KEY$2);
          $.removeData(this._element, DATA_KEY$2);
          this._items = null;
          this._config = null;
          this._element = null;
          this._interval = null;
          this._isPaused = null;
          this._isSliding = null;
          this._activeElement = null;
          this._indicatorsElement = null;
        } // Private
        ;
    
        _proto._getConfig = function _getConfig(config) {
          config = _objectSpread({}, Default, config);
          Util.typeCheckConfig(NAME$2, config, DefaultType);
          return config;
        };
    
        _proto._handleSwipe = function _handleSwipe() {
          var absDeltax = Math.abs(this.touchDeltaX);
    
          if (absDeltax <= SWIPE_THRESHOLD) {
            return;
          }
    
          var direction = absDeltax / this.touchDeltaX; // swipe left
    
          if (direction > 0) {
            this.prev();
          } // swipe right
    
    
          if (direction < 0) {
            this.next();
          }
        };
    
        _proto._addEventListeners = function _addEventListeners() {
          var _this2 = this;
    
          if (this._config.keyboard) {
            $(this._element).on(Event$2.KEYDOWN, function (event) {
              return _this2._keydown(event);
            });
          }
    
          if (this._config.pause === 'hover') {
            $(this._element).on(Event$2.MOUSEENTER, function (event) {
              return _this2.pause(event);
            }).on(Event$2.MOUSELEAVE, function (event) {
              return _this2.cycle(event);
            });
          }
    
          if (this._config.touch) {
            this._addTouchEventListeners();
          }
        };
    
        _proto._addTouchEventListeners = function _addTouchEventListeners() {
          var _this3 = this;
    
          if (!this._touchSupported) {
            return;
          }
    
          var start = function start(event) {
            if (_this3._pointerEvent && PointerType[event.originalEvent.pointerType.toUpperCase()]) {
              _this3.touchStartX = event.originalEvent.clientX;
            } else if (!_this3._pointerEvent) {
              _this3.touchStartX = event.originalEvent.touches[0].clientX;
            }
          };
    
          var move = function move(event) {
            // ensure swiping with one touch and not pinching
            if (event.originalEvent.touches && event.originalEvent.touches.length > 1) {
              _this3.touchDeltaX = 0;
            } else {
              _this3.touchDeltaX = event.originalEvent.touches[0].clientX - _this3.touchStartX;
            }
          };
    
          var end = function end(event) {
            if (_this3._pointerEvent && PointerType[event.originalEvent.pointerType.toUpperCase()]) {
              _this3.touchDeltaX = event.originalEvent.clientX - _this3.touchStartX;
            }
    
            _this3._handleSwipe();
    
            if (_this3._config.pause === 'hover') {
              // If it's a touch-enabled device, mouseenter/leave are fired as
              // part of the mouse compatibility events on first tap - the carousel
              // would stop cycling until user tapped out of it;
              // here, we listen for touchend, explicitly pause the carousel
              // (as if it's the second time we tap on it, mouseenter compat event
              // is NOT fired) and after a timeout (to allow for mouse compatibility
              // events to fire) we explicitly restart cycling
              _this3.pause();
    
              if (_this3.touchTimeout) {
                clearTimeout(_this3.touchTimeout);
              }
    
              _this3.touchTimeout = setTimeout(function (event) {
                return _this3.cycle(event);
              }, TOUCHEVENT_COMPAT_WAIT + _this3._config.interval);
            }
          };
    
          $(this._element.querySelectorAll(Selector$2.ITEM_IMG)).on(Event$2.DRAG_START, function (e) {
            return e.preventDefault();
          });
    
          if (this._pointerEvent) {
            $(this._element).on(Event$2.POINTERDOWN, function (event) {
              return start(event);
            });
            $(this._element).on(Event$2.POINTERUP, function (event) {
              return end(event);
            });
    
            this._element.classList.add(ClassName$2.POINTER_EVENT);
          } else {
            $(this._element).on(Event$2.TOUCHSTART, function (event) {
              return start(event);
            });
            $(this._element).on(Event$2.TOUCHMOVE, function (event) {
              return move(event);
            });
            $(this._element).on(Event$2.TOUCHEND, function (event) {
              return end(event);
            });
          }
        };
    
        _proto._keydown = function _keydown(event) {
          if (/input|textarea/i.test(event.target.tagName)) {
            return;
          }
    
          switch (event.which) {
            case ARROW_LEFT_KEYCODE:
              event.preventDefault();
              this.prev();
              break;
    
            case ARROW_RIGHT_KEYCODE:
              event.preventDefault();
              this.next();
              break;
    
            default:
          }
        };
    
        _proto._getItemIndex = function _getItemIndex(element) {
          this._items = element && element.parentNode ? [].slice.call(element.parentNode.querySelectorAll(Selector$2.ITEM)) : [];
          return this._items.indexOf(element);
        };
    
        _proto._getItemByDirection = function _getItemByDirection(direction, activeElement) {
          var isNextDirection = direction === Direction.NEXT;
          var isPrevDirection = direction === Direction.PREV;
    
          var activeIndex = this._getItemIndex(activeElement);
    
          var lastItemIndex = this._items.length - 1;
          var isGoingToWrap = isPrevDirection && activeIndex === 0 || isNextDirection && activeIndex === lastItemIndex;
    
          if (isGoingToWrap && !this._config.wrap) {
            return activeElement;
          }
    
          var delta = direction === Direction.PREV ? -1 : 1;
          var itemIndex = (activeIndex + delta) % this._items.length;
          return itemIndex === -1 ? this._items[this._items.length - 1] : this._items[itemIndex];
        };
    
        _proto._triggerSlideEvent = function _triggerSlideEvent(relatedTarget, eventDirectionName) {
          var targetIndex = this._getItemIndex(relatedTarget);
    
          var fromIndex = this._getItemIndex(this._element.querySelector(Selector$2.ACTIVE_ITEM));
    
          var slideEvent = $.Event(Event$2.SLIDE, {
            relatedTarget: relatedTarget,
            direction: eventDirectionName,
            from: fromIndex,
            to: targetIndex
          });
          $(this._element).trigger(slideEvent);
          return slideEvent;
        };
    
        _proto._setActiveIndicatorElement = function _setActiveIndicatorElement(element) {
          if (this._indicatorsElement) {
            var indicators = [].slice.call(this._indicatorsElement.querySelectorAll(Selector$2.ACTIVE));
            $(indicators).removeClass(ClassName$2.ACTIVE);
    
            var nextIndicator = this._indicatorsElement.children[this._getItemIndex(element)];
    
            if (nextIndicator) {
              $(nextIndicator).addClass(ClassName$2.ACTIVE);
            }
          }
        };
    
        _proto._slide = function _slide(direction, element) {
          var _this4 = this;
    
          var activeElement = this._element.querySelector(Selector$2.ACTIVE_ITEM);
    
          var activeElementIndex = this._getItemIndex(activeElement);
    
          var nextElement = element || activeElement && this._getItemByDirection(direction, activeElement);
    
          var nextElementIndex = this._getItemIndex(nextElement);
    
          var isCycling = Boolean(this._interval);
          var directionalClassName;
          var orderClassName;
          var eventDirectionName;
    
          if (direction === Direction.NEXT) {
            directionalClassName = ClassName$2.LEFT;
            orderClassName = ClassName$2.NEXT;
            eventDirectionName = Direction.LEFT;
          } else {
            directionalClassName = ClassName$2.RIGHT;
            orderClassName = ClassName$2.PREV;
            eventDirectionName = Direction.RIGHT;
          }
    
          if (nextElement && $(nextElement).hasClass(ClassName$2.ACTIVE)) {
            this._isSliding = false;
            return;
          }
    
          var slideEvent = this._triggerSlideEvent(nextElement, eventDirectionName);
    
          if (slideEvent.isDefaultPrevented()) {
            return;
          }
    
          if (!activeElement || !nextElement) {
            // Some weirdness is happening, so we bail
            return;
          }
    
          this._isSliding = true;
    
          if (isCycling) {
            this.pause();
          }
    
          this._setActiveIndicatorElement(nextElement);
    
          var slidEvent = $.Event(Event$2.SLID, {
            relatedTarget: nextElement,
            direction: eventDirectionName,
            from: activeElementIndex,
            to: nextElementIndex
          });
    
          if ($(this._element).hasClass(ClassName$2.SLIDE)) {
            $(nextElement).addClass(orderClassName);
            Util.reflow(nextElement);
            $(activeElement).addClass(directionalClassName);
            $(nextElement).addClass(directionalClassName);
            var nextElementInterval = parseInt(nextElement.getAttribute('data-interval'), 10);
    
            if (nextElementInterval) {
              this._config.defaultInterval = this._config.defaultInterval || this._config.interval;
              this._config.interval = nextElementInterval;
            } else {
              this._config.interval = this._config.defaultInterval || this._config.interval;
            }
    
            var transitionDuration = Util.getTransitionDurationFromElement(activeElement);
            $(activeElement).one(Util.TRANSITION_END, function () {
              $(nextElement).removeClass(directionalClassName + " " + orderClassName).addClass(ClassName$2.ACTIVE);
              $(activeElement).removeClass(ClassName$2.ACTIVE + " " + orderClassName + " " + directionalClassName);
              _this4._isSliding = false;
              setTimeout(function () {
                return $(_this4._element).trigger(slidEvent);
              }, 0);
            }).emulateTransitionEnd(transitionDuration);
          } else {
            $(activeElement).removeClass(ClassName$2.ACTIVE);
            $(nextElement).addClass(ClassName$2.ACTIVE);
            this._isSliding = false;
            $(this._element).trigger(slidEvent);
          }
    
          if (isCycling) {
            this.cycle();
          }
        } // Static
        ;
    
        Carousel._jQueryInterface = function _jQueryInterface(config) {
          return this.each(function () {
            var data = $(this).data(DATA_KEY$2);
    
            var _config = _objectSpread({}, Default, $(this).data());
    
            if (typeof config === 'object') {
              _config = _objectSpread({}, _config, config);
            }
    
            var action = typeof config === 'string' ? config : _config.slide;
    
            if (!data) {
              data = new Carousel(this, _config);
              $(this).data(DATA_KEY$2, data);
            }
    
            if (typeof config === 'number') {
              data.to(config);
            } else if (typeof action === 'string') {
              if (typeof data[action] === 'undefined') {
                throw new TypeError("No method named \"" + action + "\"");
              }
    
              data[action]();
            } else if (_config.interval && _config.ride) {
              data.pause();
              data.cycle();
            }
          });
        };
    
        Carousel._dataApiClickHandler = function _dataApiClickHandler(event) {
          var selector = Util.getSelectorFromElement(this);
    
          if (!selector) {
            return;
          }
    
          var target = $(selector)[0];
    
          if (!target || !$(target).hasClass(ClassName$2.CAROUSEL)) {
            return;
          }
    
          var config = _objectSpread({}, $(target).data(), $(this).data());
    
          var slideIndex = this.getAttribute('data-slide-to');
    
          if (slideIndex) {
            config.interval = false;
          }
    
          Carousel._jQueryInterface.call($(target), config);
    
          if (slideIndex) {
            $(target).data(DATA_KEY$2).to(slideIndex);
          }
    
          event.preventDefault();
        };
    
        _createClass(Carousel, null, [{
          key: "VERSION",
          get: function get() {
            return VERSION$2;
          }
        }, {
          key: "Default",
          get: function get() {
            return Default;
          }
        }]);
    
        return Carousel;
      }();
      /**
       * ------------------------------------------------------------------------
       * Data Api implementation
       * ------------------------------------------------------------------------
       */
    
    
      $(document).on(Event$2.CLICK_DATA_API, Selector$2.DATA_SLIDE, Carousel._dataApiClickHandler);
      $(window).on(Event$2.LOAD_DATA_API, function () {
        var carousels = [].slice.call(document.querySelectorAll(Selector$2.DATA_RIDE));
    
        for (var i = 0, len = carousels.length; i < len; i++) {
          var $carousel = $(carousels[i]);
    
          Carousel._jQueryInterface.call($carousel, $carousel.data());
        }
      });
      /**
       * ------------------------------------------------------------------------
       * jQuery
       * ------------------------------------------------------------------------
       */
    
      $.fn[NAME$2] = Carousel._jQueryInterface;
      $.fn[NAME$2].Constructor = Carousel;
    
      $.fn[NAME$2].noConflict = function () {
        $.fn[NAME$2] = JQUERY_NO_CONFLICT$2;
        return Carousel._jQueryInterface;
      };
    
      /**
       * ------------------------------------------------------------------------
       * Constants
       * ------------------------------------------------------------------------
       */
    
      var NAME$3 = 'collapse';
      var VERSION$3 = '4.3.1';
      var DATA_KEY$3 = 'bs.collapse';
      var EVENT_KEY$3 = "." + DATA_KEY$3;
      var DATA_API_KEY$3 = '.data-api';
      var JQUERY_NO_CONFLICT$3 = $.fn[NAME$3];
      var Default$1 = {
        toggle: true,
        parent: ''
      };
      var DefaultType$1 = {
        toggle: 'boolean',
        parent: '(string|element)'
      };
      var Event$3 = {
        SHOW: "show" + EVENT_KEY$3,
        SHOWN: "shown" + EVENT_KEY$3,
        HIDE: "hide" + EVENT_KEY$3,
        HIDDEN: "hidden" + EVENT_KEY$3,
        CLICK_DATA_API: "click" + EVENT_KEY$3 + DATA_API_KEY$3
      };
      var ClassName$3 = {
        SHOW: 'show',
        COLLAPSE: 'collapse',
        COLLAPSING: 'collapsing',
        COLLAPSED: 'collapsed'
      };
      var Dimension = {
        WIDTH: 'width',
        HEIGHT: 'height'
      };
      var Selector$3 = {
        ACTIVES: '.show, .collapsing',
        DATA_TOGGLE: '[data-toggle="collapse"]'
        /**
         * ------------------------------------------------------------------------
         * Class Definition
         * ------------------------------------------------------------------------
         */
    
      };
    
      var Collapse =
      /*#__PURE__*/
      function () {
        function Collapse(element, config) {
          this._isTransitioning = false;
          this._element = element;
          this._config = this._getConfig(config);
          this._triggerArray = [].slice.call(document.querySelectorAll("[data-toggle=\"collapse\"][href=\"#" + element.id + "\"]," + ("[data-toggle=\"collapse\"][data-target=\"#" + element.id + "\"]")));
          var toggleList = [].slice.call(document.querySelectorAll(Selector$3.DATA_TOGGLE));
    
          for (var i = 0, len = toggleList.length; i < len; i++) {
            var elem = toggleList[i];
            var selector = Util.getSelectorFromElement(elem);
            var filterElement = [].slice.call(document.querySelectorAll(selector)).filter(function (foundElem) {
              return foundElem === element;
            });
    
            if (selector !== null && filterElement.length > 0) {
              this._selector = selector;
    
              this._triggerArray.push(elem);
            }
          }
    
          this._parent = this._config.parent ? this._getParent() : null;
    
          if (!this._config.parent) {
            this._addAriaAndCollapsedClass(this._element, this._triggerArray);
          }
    
          if (this._config.toggle) {
            this.toggle();
          }
        } // Getters
    
    
        var _proto = Collapse.prototype;
    
        // Public
        _proto.toggle = function toggle() {
          if ($(this._element).hasClass(ClassName$3.SHOW)) {
            this.hide();
          } else {
            this.show();
          }
        };
    
        _proto.show = function show() {
          var _this = this;
    
          if (this._isTransitioning || $(this._element).hasClass(ClassName$3.SHOW)) {
            return;
          }
    
          var actives;
          var activesData;
    
          if (this._parent) {
            actives = [].slice.call(this._parent.querySelectorAll(Selector$3.ACTIVES)).filter(function (elem) {
              if (typeof _this._config.parent === 'string') {
                return elem.getAttribute('data-parent') === _this._config.parent;
              }
    
              return elem.classList.contains(ClassName$3.COLLAPSE);
            });
    
            if (actives.length === 0) {
              actives = null;
            }
          }
    
          if (actives) {
            activesData = $(actives).not(this._selector).data(DATA_KEY$3);
    
            if (activesData && activesData._isTransitioning) {
              return;
            }
          }
    
          var startEvent = $.Event(Event$3.SHOW);
          $(this._element).trigger(startEvent);
    
          if (startEvent.isDefaultPrevented()) {
            return;
          }
    
          if (actives) {
            Collapse._jQueryInterface.call($(actives).not(this._selector), 'hide');
    
            if (!activesData) {
              $(actives).data(DATA_KEY$3, null);
            }
          }
    
          var dimension = this._getDimension();
    
          $(this._element).removeClass(ClassName$3.COLLAPSE).addClass(ClassName$3.COLLAPSING);
          this._element.style[dimension] = 0;
    
          if (this._triggerArray.length) {
            $(this._triggerArray).removeClass(ClassName$3.COLLAPSED).attr('aria-expanded', true);
          }
    
          this.setTransitioning(true);
    
          var complete = function complete() {
            $(_this._element).removeClass(ClassName$3.COLLAPSING).addClass(ClassName$3.COLLAPSE).addClass(ClassName$3.SHOW);
            _this._element.style[dimension] = '';
    
            _this.setTransitioning(false);
    
            $(_this._element).trigger(Event$3.SHOWN);
          };
    
          var capitalizedDimension = dimension[0].toUpperCase() + dimension.slice(1);
          var scrollSize = "scroll" + capitalizedDimension;
          var transitionDuration = Util.getTransitionDurationFromElement(this._element);
          $(this._element).one(Util.TRANSITION_END, complete).emulateTransitionEnd(transitionDuration);
          this._element.style[dimension] = this._element[scrollSize] + "px";
        };
    
        _proto.hide = function hide() {
          var _this2 = this;
    
          if (this._isTransitioning || !$(this._element).hasClass(ClassName$3.SHOW)) {
            return;
          }
    
          var startEvent = $.Event(Event$3.HIDE);
          $(this._element).trigger(startEvent);
    
          if (startEvent.isDefaultPrevented()) {
            return;
          }
    
          var dimension = this._getDimension();
    
          this._element.style[dimension] = this._element.getBoundingClientRect()[dimension] + "px";
          Util.reflow(this._element);
          $(this._element).addClass(ClassName$3.COLLAPSING).removeClass(ClassName$3.COLLAPSE).removeClass(ClassName$3.SHOW);
          var triggerArrayLength = this._triggerArray.length;
    
          if (triggerArrayLength > 0) {
            for (var i = 0; i < triggerArrayLength; i++) {
              var trigger = this._triggerArray[i];
              var selector = Util.getSelectorFromElement(trigger);
    
              if (selector !== null) {
                var $elem = $([].slice.call(document.querySelectorAll(selector)));
    
                if (!$elem.hasClass(ClassName$3.SHOW)) {
                  $(trigger).addClass(ClassName$3.COLLAPSED).attr('aria-expanded', false);
                }
              }
            }
          }
    
          this.setTransitioning(true);
    
          var complete = function complete() {
            _this2.setTransitioning(false);
    
            $(_this2._element).removeClass(ClassName$3.COLLAPSING).addClass(ClassName$3.COLLAPSE).trigger(Event$3.HIDDEN);
          };
    
          this._element.style[dimension] = '';
          var transitionDuration = Util.getTransitionDurationFromElement(this._element);
          $(this._element).one(Util.TRANSITION_END, complete).emulateTransitionEnd(transitionDuration);
        };
    
        _proto.setTransitioning = function setTransitioning(isTransitioning) {
          this._isTransitioning = isTransitioning;
        };
    
        _proto.dispose = function dispose() {
          $.removeData(this._element, DATA_KEY$3);
          this._config = null;
          this._parent = null;
          this._element = null;
          this._triggerArray = null;
          this._isTransitioning = null;
        } // Private
        ;
    
        _proto._getConfig = function _getConfig(config) {
          config = _objectSpread({}, Default$1, config);
          config.toggle = Boolean(config.toggle); // Coerce string values
    
          Util.typeCheckConfig(NAME$3, config, DefaultType$1);
          return config;
        };
    
        _proto._getDimension = function _getDimension() {
          var hasWidth = $(this._element).hasClass(Dimension.WIDTH);
          return hasWidth ? Dimension.WIDTH : Dimension.HEIGHT;
        };
    
        _proto._getParent = function _getParent() {
          var _this3 = this;
    
          var parent;
    
          if (Util.isElement(this._config.parent)) {
            parent = this._config.parent; // It's a jQuery object
    
            if (typeof this._config.parent.jquery !== 'undefined') {
              parent = this._config.parent[0];
            }
          } else {
            parent = document.querySelector(this._config.parent);
          }
    
          var selector = "[data-toggle=\"collapse\"][data-parent=\"" + this._config.parent + "\"]";
          var children = [].slice.call(parent.querySelectorAll(selector));
          $(children).each(function (i, element) {
            _this3._addAriaAndCollapsedClass(Collapse._getTargetFromElement(element), [element]);
          });
          return parent;
        };
    
        _proto._addAriaAndCollapsedClass = function _addAriaAndCollapsedClass(element, triggerArray) {
          var isOpen = $(element).hasClass(ClassName$3.SHOW);
    
          if (triggerArray.length) {
            $(triggerArray).toggleClass(ClassName$3.COLLAPSED, !isOpen).attr('aria-expanded', isOpen);
          }
        } // Static
        ;
    
        Collapse._getTargetFromElement = function _getTargetFromElement(element) {
          var selector = Util.getSelectorFromElement(element);
          return selector ? document.querySelector(selector) : null;
        };
    
        Collapse._jQueryInterface = function _jQueryInterface(config) {
          return this.each(function () {
            var $this = $(this);
            var data = $this.data(DATA_KEY$3);
    
            var _config = _objectSpread({}, Default$1, $this.data(), typeof config === 'object' && config ? config : {});
    
            if (!data && _config.toggle && /show|hide/.test(config)) {
              _config.toggle = false;
            }
    
            if (!data) {
              data = new Collapse(this, _config);
              $this.data(DATA_KEY$3, data);
            }
    
            if (typeof config === 'string') {
              if (typeof data[config] === 'undefined') {
                throw new TypeError("No method named \"" + config + "\"");
              }
    
              data[config]();
            }
          });
        };
    
        _createClass(Collapse, null, [{
          key: "VERSION",
          get: function get() {
            return VERSION$3;
          }
        }, {
          key: "Default",
          get: function get() {
            return Default$1;
          }
        }]);
    
        return Collapse;
      }();
      /**
       * ------------------------------------------------------------------------
       * Data Api implementation
       * ------------------------------------------------------------------------
       */
    
    
      $(document).on(Event$3.CLICK_DATA_API, Selector$3.DATA_TOGGLE, function (event) {
        // preventDefault only for <a> elements (which change the URL) not inside the collapsible element
        if (event.currentTarget.tagName === 'A') {
          event.preventDefault();
        }
    
        var $trigger = $(this);
        var selector = Util.getSelectorFromElement(this);
        var selectors = [].slice.call(document.querySelectorAll(selector));
        $(selectors).each(function () {
          var $target = $(this);
          var data = $target.data(DATA_KEY$3);
          var config = data ? 'toggle' : $trigger.data();
    
          Collapse._jQueryInterface.call($target, config);
        });
      });
      /**
       * ------------------------------------------------------------------------
       * jQuery
       * ------------------------------------------------------------------------
       */
    
      $.fn[NAME$3] = Collapse._jQueryInterface;
      $.fn[NAME$3].Constructor = Collapse;
    
      $.fn[NAME$3].noConflict = function () {
        $.fn[NAME$3] = JQUERY_NO_CONFLICT$3;
        return Collapse._jQueryInterface;
      };
    
      /**
       * ------------------------------------------------------------------------
       * Constants
       * ------------------------------------------------------------------------
       */
    
      var NAME$4 = 'dropdown';
      var VERSION$4 = '4.3.1';
      var DATA_KEY$4 = 'bs.dropdown';
      var EVENT_KEY$4 = "." + DATA_KEY$4;
      var DATA_API_KEY$4 = '.data-api';
      var JQUERY_NO_CONFLICT$4 = $.fn[NAME$4];
      var ESCAPE_KEYCODE = 27; // KeyboardEvent.which value for Escape (Esc) key
    
      var SPACE_KEYCODE = 32; // KeyboardEvent.which value for space key
    
      var TAB_KEYCODE = 9; // KeyboardEvent.which value for tab key
    
      var ARROW_UP_KEYCODE = 38; // KeyboardEvent.which value for up arrow key
    
      var ARROW_DOWN_KEYCODE = 40; // KeyboardEvent.which value for down arrow key
    
      var RIGHT_MOUSE_BUTTON_WHICH = 3; // MouseEvent.which value for the right button (assuming a right-handed mouse)
    
      var REGEXP_KEYDOWN = new RegExp(ARROW_UP_KEYCODE + "|" + ARROW_DOWN_KEYCODE + "|" + ESCAPE_KEYCODE);
      var Event$4 = {
        HIDE: "hide" + EVENT_KEY$4,
        HIDDEN: "hidden" + EVENT_KEY$4,
        SHOW: "show" + EVENT_KEY$4,
        SHOWN: "shown" + EVENT_KEY$4,
        CLICK: "click" + EVENT_KEY$4,
        CLICK_DATA_API: "click" + EVENT_KEY$4 + DATA_API_KEY$4,
        KEYDOWN_DATA_API: "keydown" + EVENT_KEY$4 + DATA_API_KEY$4,
        KEYUP_DATA_API: "keyup" + EVENT_KEY$4 + DATA_API_KEY$4
      };
      var ClassName$4 = {
        DISABLED: 'disabled',
        SHOW: 'show',
        DROPUP: 'dropup',
        DROPRIGHT: 'dropright',
        DROPLEFT: 'dropleft',
        MENURIGHT: 'dropdown-menu-right',
        MENULEFT: 'dropdown-menu-left',
        POSITION_STATIC: 'position-static'
      };
      var Selector$4 = {
        DATA_TOGGLE: '[data-toggle="dropdown"]',
        FORM_CHILD: '.dropdown form',
        MENU: '.dropdown-menu',
        NAVBAR_NAV: '.navbar-nav',
        VISIBLE_ITEMS: '.dropdown-menu .dropdown-item:not(.disabled):not(:disabled)'
      };
      var AttachmentMap = {
        TOP: 'top-start',
        TOPEND: 'top-end',
        BOTTOM: 'bottom-start',
        BOTTOMEND: 'bottom-end',
        RIGHT: 'right-start',
        RIGHTEND: 'right-end',
        LEFT: 'left-start',
        LEFTEND: 'left-end'
      };
      var Default$2 = {
        offset: 0,
        flip: true,
        boundary: 'scrollParent',
        reference: 'toggle',
        display: 'dynamic'
      };
      var DefaultType$2 = {
        offset: '(number|string|function)',
        flip: 'boolean',
        boundary: '(string|element)',
        reference: '(string|element)',
        display: 'string'
        /**
         * ------------------------------------------------------------------------
         * Class Definition
         * ------------------------------------------------------------------------
         */
    
      };
    
      var Dropdown =
      /*#__PURE__*/
      function () {
        function Dropdown(element, config) {
          this._element = element;
          this._popper = null;
          this._config = this._getConfig(config);
          this._menu = this._getMenuElement();
          this._inNavbar = this._detectNavbar();
    
          this._addEventListeners();
        } // Getters
    
    
        var _proto = Dropdown.prototype;
    
        // Public
        _proto.toggle = function toggle() {
          if (this._element.disabled || $(this._element).hasClass(ClassName$4.DISABLED)) {
            return;
          }
    
          var parent = Dropdown._getParentFromElement(this._element);
    
          var isActive = $(this._menu).hasClass(ClassName$4.SHOW);
    
          Dropdown._clearMenus();
    
          if (isActive) {
            return;
          }
    
          var relatedTarget = {
            relatedTarget: this._element
          };
          var showEvent = $.Event(Event$4.SHOW, relatedTarget);
          $(parent).trigger(showEvent);
    
          if (showEvent.isDefaultPrevented()) {
            return;
          } // Disable totally Popper.js for Dropdown in Navbar
    
    
          if (!this._inNavbar) {
            /**
             * Check for Popper dependency
             * Popper - https://popper.js.org
             */
            if (typeof Popper === 'undefined') {
              throw new TypeError('Bootstrap\'s dropdowns require Popper.js (https://popper.js.org/)');
            }
    
            var referenceElement = this._element;
    
            if (this._config.reference === 'parent') {
              referenceElement = parent;
            } else if (Util.isElement(this._config.reference)) {
              referenceElement = this._config.reference; // Check if it's jQuery element
    
              if (typeof this._config.reference.jquery !== 'undefined') {
                referenceElement = this._config.reference[0];
              }
            } // If boundary is not `scrollParent`, then set position to `static`
            // to allow the menu to "escape" the scroll parent's boundaries
            // https://github.com/twbs/bootstrap/issues/24251
    
    
            if (this._config.boundary !== 'scrollParent') {
              $(parent).addClass(ClassName$4.POSITION_STATIC);
            }
    
            this._popper = new Popper(referenceElement, this._menu, this._getPopperConfig());
          } // If this is a touch-enabled device we add extra
          // empty mouseover listeners to the body's immediate children;
          // only needed because of broken event delegation on iOS
          // https://www.quirksmode.org/blog/archives/2014/02/mouse_event_bub.html
    
    
          if ('ontouchstart' in document.documentElement && $(parent).closest(Selector$4.NAVBAR_NAV).length === 0) {
            $(document.body).children().on('mouseover', null, $.noop);
          }
    
          this._element.focus();
    
          this._element.setAttribute('aria-expanded', true);
    
          $(this._menu).toggleClass(ClassName$4.SHOW);
          $(parent).toggleClass(ClassName$4.SHOW).trigger($.Event(Event$4.SHOWN, relatedTarget));
        };
    
        _proto.show = function show() {
          if (this._element.disabled || $(this._element).hasClass(ClassName$4.DISABLED) || $(this._menu).hasClass(ClassName$4.SHOW)) {
            return;
          }
    
          var relatedTarget = {
            relatedTarget: this._element
          };
          var showEvent = $.Event(Event$4.SHOW, relatedTarget);
    
          var parent = Dropdown._getParentFromElement(this._element);
    
          $(parent).trigger(showEvent);
    
          if (showEvent.isDefaultPrevented()) {
            return;
          }
    
          $(this._menu).toggleClass(ClassName$4.SHOW);
          $(parent).toggleClass(ClassName$4.SHOW).trigger($.Event(Event$4.SHOWN, relatedTarget));
        };
    
        _proto.hide = function hide() {
          if (this._element.disabled || $(this._element).hasClass(ClassName$4.DISABLED) || !$(this._menu).hasClass(ClassName$4.SHOW)) {
            return;
          }
    
          var relatedTarget = {
            relatedTarget: this._element
          };
          var hideEvent = $.Event(Event$4.HIDE, relatedTarget);
    
          var parent = Dropdown._getParentFromElement(this._element);
    
          $(parent).trigger(hideEvent);
    
          if (hideEvent.isDefaultPrevented()) {
            return;
          }
    
          $(this._menu).toggleClass(ClassName$4.SHOW);
          $(parent).toggleClass(ClassName$4.SHOW).trigger($.Event(Event$4.HIDDEN, relatedTarget));
        };
    
        _proto.dispose = function dispose() {
          $.removeData(this._element, DATA_KEY$4);
          $(this._element).off(EVENT_KEY$4);
          this._element = null;
          this._menu = null;
    
          if (this._popper !== null) {
            this._popper.destroy();
    
            this._popper = null;
          }
        };
    
        _proto.update = function update() {
          this._inNavbar = this._detectNavbar();
    
          if (this._popper !== null) {
            this._popper.scheduleUpdate();
          }
        } // Private
        ;
    
        _proto._addEventListeners = function _addEventListeners() {
          var _this = this;
    
          $(this._element).on(Event$4.CLICK, function (event) {
            event.preventDefault();
            event.stopPropagation();
    
            _this.toggle();
          });
        };
    
        _proto._getConfig = function _getConfig(config) {
          config = _objectSpread({}, this.constructor.Default, $(this._element).data(), config);
          Util.typeCheckConfig(NAME$4, config, this.constructor.DefaultType);
          return config;
        };
    
        _proto._getMenuElement = function _getMenuElement() {
          if (!this._menu) {
            var parent = Dropdown._getParentFromElement(this._element);
    
            if (parent) {
              this._menu = parent.querySelector(Selector$4.MENU);
            }
          }
    
          return this._menu;
        };
    
        _proto._getPlacement = function _getPlacement() {
          var $parentDropdown = $(this._element.parentNode);
          var placement = AttachmentMap.BOTTOM; // Handle dropup
    
          if ($parentDropdown.hasClass(ClassName$4.DROPUP)) {
            placement = AttachmentMap.TOP;
    
            if ($(this._menu).hasClass(ClassName$4.MENURIGHT)) {
              placement = AttachmentMap.TOPEND;
            }
          } else if ($parentDropdown.hasClass(ClassName$4.DROPRIGHT)) {
            placement = AttachmentMap.RIGHT;
          } else if ($parentDropdown.hasClass(ClassName$4.DROPLEFT)) {
            placement = AttachmentMap.LEFT;
          } else if ($(this._menu).hasClass(ClassName$4.MENURIGHT)) {
            placement = AttachmentMap.BOTTOMEND;
          }
    
          return placement;
        };
    
        _proto._detectNavbar = function _detectNavbar() {
          return $(this._element).closest('.navbar').length > 0;
        };
    
        _proto._getOffset = function _getOffset() {
          var _this2 = this;
    
          var offset = {};
    
          if (typeof this._config.offset === 'function') {
            offset.fn = function (data) {
              data.offsets = _objectSpread({}, data.offsets, _this2._config.offset(data.offsets, _this2._element) || {});
              return data;
            };
          } else {
            offset.offset = this._config.offset;
          }
    
          return offset;
        };
    
        _proto._getPopperConfig = function _getPopperConfig() {
          var popperConfig = {
            placement: this._getPlacement(),
            modifiers: {
              offset: this._getOffset(),
              flip: {
                enabled: this._config.flip
              },
              preventOverflow: {
                boundariesElement: this._config.boundary
              }
            } // Disable Popper.js if we have a static display
    
          };
    
          if (this._config.display === 'static') {
            popperConfig.modifiers.applyStyle = {
              enabled: false
            };
          }
    
          return popperConfig;
        } // Static
        ;
    
        Dropdown._jQueryInterface = function _jQueryInterface(config) {
          return this.each(function () {
            var data = $(this).data(DATA_KEY$4);
    
            var _config = typeof config === 'object' ? config : null;
    
            if (!data) {
              data = new Dropdown(this, _config);
              $(this).data(DATA_KEY$4, data);
            }
    
            if (typeof config === 'string') {
              if (typeof data[config] === 'undefined') {
                throw new TypeError("No method named \"" + config + "\"");
              }
    
              data[config]();
            }
          });
        };
    
        Dropdown._clearMenus = function _clearMenus(event) {
          if (event && (event.which === RIGHT_MOUSE_BUTTON_WHICH || event.type === 'keyup' && event.which !== TAB_KEYCODE)) {
            return;
          }
    
          var toggles = [].slice.call(document.querySelectorAll(Selector$4.DATA_TOGGLE));
    
          for (var i = 0, len = toggles.length; i < len; i++) {
            var parent = Dropdown._getParentFromElement(toggles[i]);
    
            var context = $(toggles[i]).data(DATA_KEY$4);
            var relatedTarget = {
              relatedTarget: toggles[i]
            };
    
            if (event && event.type === 'click') {
              relatedTarget.clickEvent = event;
            }
    
            if (!context) {
              continue;
            }
    
            var dropdownMenu = context._menu;
    
            if (!$(parent).hasClass(ClassName$4.SHOW)) {
              continue;
            }
    
            if (event && (event.type === 'click' && /input|textarea/i.test(event.target.tagName) || event.type === 'keyup' && event.which === TAB_KEYCODE) && $.contains(parent, event.target)) {
              continue;
            }
    
            var hideEvent = $.Event(Event$4.HIDE, relatedTarget);
            $(parent).trigger(hideEvent);
    
            if (hideEvent.isDefaultPrevented()) {
              continue;
            } // If this is a touch-enabled device we remove the extra
            // empty mouseover listeners we added for iOS support
    
    
            if ('ontouchstart' in document.documentElement) {
              $(document.body).children().off('mouseover', null, $.noop);
            }
    
            toggles[i].setAttribute('aria-expanded', 'false');
            $(dropdownMenu).removeClass(ClassName$4.SHOW);
            $(parent).removeClass(ClassName$4.SHOW).trigger($.Event(Event$4.HIDDEN, relatedTarget));
          }
        };
    
        Dropdown._getParentFromElement = function _getParentFromElement(element) {
          var parent;
          var selector = Util.getSelectorFromElement(element);
    
          if (selector) {
            parent = document.querySelector(selector);
          }
    
          return parent || element.parentNode;
        } // eslint-disable-next-line complexity
        ;
    
        Dropdown._dataApiKeydownHandler = function _dataApiKeydownHandler(event) {
          // If not input/textarea:
          //  - And not a key in REGEXP_KEYDOWN => not a dropdown command
          // If input/textarea:
          //  - If space key => not a dropdown command
          //  - If key is other than escape
          //    - If key is not up or down => not a dropdown command
          //    - If trigger inside the menu => not a dropdown command
          if (/input|textarea/i.test(event.target.tagName) ? event.which === SPACE_KEYCODE || event.which !== ESCAPE_KEYCODE && (event.which !== ARROW_DOWN_KEYCODE && event.which !== ARROW_UP_KEYCODE || $(event.target).closest(Selector$4.MENU).length) : !REGEXP_KEYDOWN.test(event.which)) {
            return;
          }
    
          event.preventDefault();
          event.stopPropagation();
    
          if (this.disabled || $(this).hasClass(ClassName$4.DISABLED)) {
            return;
          }
    
          var parent = Dropdown._getParentFromElement(this);
    
          var isActive = $(parent).hasClass(ClassName$4.SHOW);
    
          if (!isActive || isActive && (event.which === ESCAPE_KEYCODE || event.which === SPACE_KEYCODE)) {
            if (event.which === ESCAPE_KEYCODE) {
              var toggle = parent.querySelector(Selector$4.DATA_TOGGLE);
              $(toggle).trigger('focus');
            }
    
            $(this).trigger('click');
            return;
          }
    
          var items = [].slice.call(parent.querySelectorAll(Selector$4.VISIBLE_ITEMS));
    
          if (items.length === 0) {
            return;
          }
    
          var index = items.indexOf(event.target);
    
          if (event.which === ARROW_UP_KEYCODE && index > 0) {
            // Up
            index--;
          }
    
          if (event.which === ARROW_DOWN_KEYCODE && index < items.length - 1) {
            // Down
            index++;
          }
    
          if (index < 0) {
            index = 0;
          }
    
          items[index].focus();
        };
    
        _createClass(Dropdown, null, [{
          key: "VERSION",
          get: function get() {
            return VERSION$4;
          }
        }, {
          key: "Default",
          get: function get() {
            return Default$2;
          }
        }, {
          key: "DefaultType",
          get: function get() {
            return DefaultType$2;
          }
        }]);
    
        return Dropdown;
      }();
      /**
       * ------------------------------------------------------------------------
       * Data Api implementation
       * ------------------------------------------------------------------------
       */
    
    
      $(document).on(Event$4.KEYDOWN_DATA_API, Selector$4.DATA_TOGGLE, Dropdown._dataApiKeydownHandler).on(Event$4.KEYDOWN_DATA_API, Selector$4.MENU, Dropdown._dataApiKeydownHandler).on(Event$4.CLICK_DATA_API + " " + Event$4.KEYUP_DATA_API, Dropdown._clearMenus).on(Event$4.CLICK_DATA_API, Selector$4.DATA_TOGGLE, function (event) {
        event.preventDefault();
        event.stopPropagation();
    
        Dropdown._jQueryInterface.call($(this), 'toggle');
      }).on(Event$4.CLICK_DATA_API, Selector$4.FORM_CHILD, function (e) {
        e.stopPropagation();
      });
      /**
       * ------------------------------------------------------------------------
       * jQuery
       * ------------------------------------------------------------------------
       */
    
      $.fn[NAME$4] = Dropdown._jQueryInterface;
      $.fn[NAME$4].Constructor = Dropdown;
    
      $.fn[NAME$4].noConflict = function () {
        $.fn[NAME$4] = JQUERY_NO_CONFLICT$4;
        return Dropdown._jQueryInterface;
      };
    
      /**
       * ------------------------------------------------------------------------
       * Constants
       * ------------------------------------------------------------------------
       */
    
      var NAME$5 = 'modal';
      var VERSION$5 = '4.3.1';
      var DATA_KEY$5 = 'bs.modal';
      var EVENT_KEY$5 = "." + DATA_KEY$5;
      var DATA_API_KEY$5 = '.data-api';
      var JQUERY_NO_CONFLICT$5 = $.fn[NAME$5];
      var ESCAPE_KEYCODE$1 = 27; // KeyboardEvent.which value for Escape (Esc) key
    
      var Default$3 = {
        backdrop: true,
        keyboard: true,
        focus: true,
        show: true
      };
      var DefaultType$3 = {
        backdrop: '(boolean|string)',
        keyboard: 'boolean',
        focus: 'boolean',
        show: 'boolean'
      };
      var Event$5 = {
        HIDE: "hide" + EVENT_KEY$5,
        HIDDEN: "hidden" + EVENT_KEY$5,
        SHOW: "show" + EVENT_KEY$5,
        SHOWN: "shown" + EVENT_KEY$5,
        FOCUSIN: "focusin" + EVENT_KEY$5,
        RESIZE: "resize" + EVENT_KEY$5,
        CLICK_DISMISS: "click.dismiss" + EVENT_KEY$5,
        KEYDOWN_DISMISS: "keydown.dismiss" + EVENT_KEY$5,
        MOUSEUP_DISMISS: "mouseup.dismiss" + EVENT_KEY$5,
        MOUSEDOWN_DISMISS: "mousedown.dismiss" + EVENT_KEY$5,
        CLICK_DATA_API: "click" + EVENT_KEY$5 + DATA_API_KEY$5
      };
      var ClassName$5 = {
        SCROLLABLE: 'modal-dialog-scrollable',
        SCROLLBAR_MEASURER: 'modal-scrollbar-measure',
        BACKDROP: 'modal-backdrop',
        OPEN: 'modal-open',
        FADE: 'fade',
        SHOW: 'show'
      };
      var Selector$5 = {
        DIALOG: '.modal-dialog',
        MODAL_BODY: '.modal-body',
        DATA_TOGGLE: '[data-toggle="modal"]',
        DATA_DISMISS: '[data-dismiss="modal"]',
        FIXED_CONTENT: '.fixed-top, .fixed-bottom, .is-fixed, .sticky-top',
        STICKY_CONTENT: '.sticky-top'
        /**
         * ------------------------------------------------------------------------
         * Class Definition
         * ------------------------------------------------------------------------
         */
    
      };
    
      var Modal =
      /*#__PURE__*/
      function () {
        function Modal(element, config) {
          this._config = this._getConfig(config);
          this._element = element;
          this._dialog = element.querySelector(Selector$5.DIALOG);
          this._backdrop = null;
          this._isShown = false;
          this._isBodyOverflowing = false;
          this._ignoreBackdropClick = false;
          this._isTransitioning = false;
          this._scrollbarWidth = 0;
        } // Getters
    
    
        var _proto = Modal.prototype;
    
        // Public
        _proto.toggle = function toggle(relatedTarget) {
          return this._isShown ? this.hide() : this.show(relatedTarget);
        };
    
        _proto.show = function show(relatedTarget) {
          var _this = this;
    
          if (this._isShown || this._isTransitioning) {
            return;
          }
    
          if ($(this._element).hasClass(ClassName$5.FADE)) {
            this._isTransitioning = true;
          }
    
          var showEvent = $.Event(Event$5.SHOW, {
            relatedTarget: relatedTarget
          });
          $(this._element).trigger(showEvent);
    
          if (this._isShown || showEvent.isDefaultPrevented()) {
            return;
          }
    
          this._isShown = true;
    
          this._checkScrollbar();
    
          this._setScrollbar();
    
          this._adjustDialog();
    
          this._setEscapeEvent();
    
          this._setResizeEvent();
    
          $(this._element).on(Event$5.CLICK_DISMISS, Selector$5.DATA_DISMISS, function (event) {
            return _this.hide(event);
          });
          $(this._dialog).on(Event$5.MOUSEDOWN_DISMISS, function () {
            $(_this._element).one(Event$5.MOUSEUP_DISMISS, function (event) {
              if ($(event.target).is(_this._element)) {
                _this._ignoreBackdropClick = true;
              }
            });
          });
    
          this._showBackdrop(function () {
            return _this._showElement(relatedTarget);
          });
        };
    
        _proto.hide = function hide(event) {
          var _this2 = this;
    
          if (event) {
            event.preventDefault();
          }
    
          if (!this._isShown || this._isTransitioning) {
            return;
          }
    
          var hideEvent = $.Event(Event$5.HIDE);
          $(this._element).trigger(hideEvent);
    
          if (!this._isShown || hideEvent.isDefaultPrevented()) {
            return;
          }
    
          this._isShown = false;
          var transition = $(this._element).hasClass(ClassName$5.FADE);
    
          if (transition) {
            this._isTransitioning = true;
          }
    
          this._setEscapeEvent();
    
          this._setResizeEvent();
    
          $(document).off(Event$5.FOCUSIN);
          $(this._element).removeClass(ClassName$5.SHOW);
          $(this._element).off(Event$5.CLICK_DISMISS);
          $(this._dialog).off(Event$5.MOUSEDOWN_DISMISS);
    
          if (transition) {
            var transitionDuration = Util.getTransitionDurationFromElement(this._element);
            $(this._element).one(Util.TRANSITION_END, function (event) {
              return _this2._hideModal(event);
            }).emulateTransitionEnd(transitionDuration);
          } else {
            this._hideModal();
          }
        };
    
        _proto.dispose = function dispose() {
          [window, this._element, this._dialog].forEach(function (htmlElement) {
            return $(htmlElement).off(EVENT_KEY$5);
          });
          /**
           * `document` has 2 events `Event.FOCUSIN` and `Event.CLICK_DATA_API`
           * Do not move `document` in `htmlElements` array
           * It will remove `Event.CLICK_DATA_API` event that should remain
           */
    
          $(document).off(Event$5.FOCUSIN);
          $.removeData(this._element, DATA_KEY$5);
          this._config = null;
          this._element = null;
          this._dialog = null;
          this._backdrop = null;
          this._isShown = null;
          this._isBodyOverflowing = null;
          this._ignoreBackdropClick = null;
          this._isTransitioning = null;
          this._scrollbarWidth = null;
        };
    
        _proto.handleUpdate = function handleUpdate() {
          this._adjustDialog();
        } // Private
        ;
    
        _proto._getConfig = function _getConfig(config) {
          config = _objectSpread({}, Default$3, config);
          Util.typeCheckConfig(NAME$5, config, DefaultType$3);
          return config;
        };
    
        _proto._showElement = function _showElement(relatedTarget) {
          var _this3 = this;
    
          var transition = $(this._element).hasClass(ClassName$5.FADE);
    
          if (!this._element.parentNode || this._element.parentNode.nodeType !== Node.ELEMENT_NODE) {
            // Don't move modal's DOM position
            document.body.appendChild(this._element);
          }
    
          this._element.style.display = 'block';
    
          this._element.removeAttribute('aria-hidden');
    
          this._element.setAttribute('aria-modal', true);
    
          if ($(this._dialog).hasClass(ClassName$5.SCROLLABLE)) {
            this._dialog.querySelector(Selector$5.MODAL_BODY).scrollTop = 0;
          } else {
            this._element.scrollTop = 0;
          }
    
          if (transition) {
            Util.reflow(this._element);
          }
    
          $(this._element).addClass(ClassName$5.SHOW);
    
          if (this._config.focus) {
            this._enforceFocus();
          }
    
          var shownEvent = $.Event(Event$5.SHOWN, {
            relatedTarget: relatedTarget
          });
    
          var transitionComplete = function transitionComplete() {
            if (_this3._config.focus) {
              _this3._element.focus();
            }
    
            _this3._isTransitioning = false;
            $(_this3._element).trigger(shownEvent);
          };
    
          if (transition) {
            var transitionDuration = Util.getTransitionDurationFromElement(this._dialog);
            $(this._dialog).one(Util.TRANSITION_END, transitionComplete).emulateTransitionEnd(transitionDuration);
          } else {
            transitionComplete();
          }
        };
    
        _proto._enforceFocus = function _enforceFocus() {
          var _this4 = this;
    
          $(document).off(Event$5.FOCUSIN) // Guard against infinite focus loop
          .on(Event$5.FOCUSIN, function (event) {
            if (document !== event.target && _this4._element !== event.target && $(_this4._element).has(event.target).length === 0) {
              _this4._element.focus();
            }
          });
        };
    
        _proto._setEscapeEvent = function _setEscapeEvent() {
          var _this5 = this;
    
          if (this._isShown && this._config.keyboard) {
            $(this._element).on(Event$5.KEYDOWN_DISMISS, function (event) {
              if (event.which === ESCAPE_KEYCODE$1) {
                event.preventDefault();
    
                _this5.hide();
              }
            });
          } else if (!this._isShown) {
            $(this._element).off(Event$5.KEYDOWN_DISMISS);
          }
        };
    
        _proto._setResizeEvent = function _setResizeEvent() {
          var _this6 = this;
    
          if (this._isShown) {
            $(window).on(Event$5.RESIZE, function (event) {
              return _this6.handleUpdate(event);
            });
          } else {
            $(window).off(Event$5.RESIZE);
          }
        };
    
        _proto._hideModal = function _hideModal() {
          var _this7 = this;
    
          this._element.style.display = 'none';
    
          this._element.setAttribute('aria-hidden', true);
    
          this._element.removeAttribute('aria-modal');
    
          this._isTransitioning = false;
    
          this._showBackdrop(function () {
            $(document.body).removeClass(ClassName$5.OPEN);
    
            _this7._resetAdjustments();
    
            _this7._resetScrollbar();
    
            $(_this7._element).trigger(Event$5.HIDDEN);
          });
        };
    
        _proto._removeBackdrop = function _removeBackdrop() {
          if (this._backdrop) {
            $(this._backdrop).remove();
            this._backdrop = null;
          }
        };
    
        _proto._showBackdrop = function _showBackdrop(callback) {
          var _this8 = this;
    
          var animate = $(this._element).hasClass(ClassName$5.FADE) ? ClassName$5.FADE : '';
    
          if (this._isShown && this._config.backdrop) {
            this._backdrop = document.createElement('div');
            this._backdrop.className = ClassName$5.BACKDROP;
    
            if (animate) {
              this._backdrop.classList.add(animate);
            }
    
            $(this._backdrop).appendTo(document.body);
            $(this._element).on(Event$5.CLICK_DISMISS, function (event) {
              if (_this8._ignoreBackdropClick) {
                _this8._ignoreBackdropClick = false;
                return;
              }
    
              if (event.target !== event.currentTarget) {
                return;
              }
    
              if (_this8._config.backdrop === 'static') {
                _this8._element.focus();
              } else {
                _this8.hide();
              }
            });
    
            if (animate) {
              Util.reflow(this._backdrop);
            }
    
            $(this._backdrop).addClass(ClassName$5.SHOW);
    
            if (!callback) {
              return;
            }
    
            if (!animate) {
              callback();
              return;
            }
    
            var backdropTransitionDuration = Util.getTransitionDurationFromElement(this._backdrop);
            $(this._backdrop).one(Util.TRANSITION_END, callback).emulateTransitionEnd(backdropTransitionDuration);
          } else if (!this._isShown && this._backdrop) {
            $(this._backdrop).removeClass(ClassName$5.SHOW);
    
            var callbackRemove = function callbackRemove() {
              _this8._removeBackdrop();
    
              if (callback) {
                callback();
              }
            };
    
            if ($(this._element).hasClass(ClassName$5.FADE)) {
              var _backdropTransitionDuration = Util.getTransitionDurationFromElement(this._backdrop);
    
              $(this._backdrop).one(Util.TRANSITION_END, callbackRemove).emulateTransitionEnd(_backdropTransitionDuration);
            } else {
              callbackRemove();
            }
          } else if (callback) {
            callback();
          }
        } // ----------------------------------------------------------------------
        // the following methods are used to handle overflowing modals
        // todo (fat): these should probably be refactored out of modal.js
        // ----------------------------------------------------------------------
        ;
    
        _proto._adjustDialog = function _adjustDialog() {
          var isModalOverflowing = this._element.scrollHeight > document.documentElement.clientHeight;
    
          if (!this._isBodyOverflowing && isModalOverflowing) {
            this._element.style.paddingLeft = this._scrollbarWidth + "px";
          }
    
          if (this._isBodyOverflowing && !isModalOverflowing) {
            this._element.style.paddingRight = this._scrollbarWidth + "px";
          }
        };
    
        _proto._resetAdjustments = function _resetAdjustments() {
          this._element.style.paddingLeft = '';
          this._element.style.paddingRight = '';
        };
    
        _proto._checkScrollbar = function _checkScrollbar() {
          var rect = document.body.getBoundingClientRect();
          this._isBodyOverflowing = rect.left + rect.right < window.innerWidth;
          this._scrollbarWidth = this._getScrollbarWidth();
        };
    
        _proto._setScrollbar = function _setScrollbar() {
          var _this9 = this;
    
          if (this._isBodyOverflowing) {
            // Note: DOMNode.style.paddingRight returns the actual value or '' if not set
            //   while $(DOMNode).css('padding-right') returns the calculated value or 0 if not set
            var fixedContent = [].slice.call(document.querySelectorAll(Selector$5.FIXED_CONTENT));
            var stickyContent = [].slice.call(document.querySelectorAll(Selector$5.STICKY_CONTENT)); // Adjust fixed content padding
    
            $(fixedContent).each(function (index, element) {
              var actualPadding = element.style.paddingRight;
              var calculatedPadding = $(element).css('padding-right');
              $(element).data('padding-right', actualPadding).css('padding-right', parseFloat(calculatedPadding) + _this9._scrollbarWidth + "px");
            }); // Adjust sticky content margin
    
            $(stickyContent).each(function (index, element) {
              var actualMargin = element.style.marginRight;
              var calculatedMargin = $(element).css('margin-right');
              $(element).data('margin-right', actualMargin).css('margin-right', parseFloat(calculatedMargin) - _this9._scrollbarWidth + "px");
            }); // Adjust body padding
    
            var actualPadding = document.body.style.paddingRight;
            var calculatedPadding = $(document.body).css('padding-right');
            $(document.body).data('padding-right', actualPadding).css('padding-right', parseFloat(calculatedPadding) + this._scrollbarWidth + "px");
          }
    
          $(document.body).addClass(ClassName$5.OPEN);
        };
    
        _proto._resetScrollbar = function _resetScrollbar() {
          // Restore fixed content padding
          var fixedContent = [].slice.call(document.querySelectorAll(Selector$5.FIXED_CONTENT));
          $(fixedContent).each(function (index, element) {
            var padding = $(element).data('padding-right');
            $(element).removeData('padding-right');
            element.style.paddingRight = padding ? padding : '';
          }); // Restore sticky content
    
          var elements = [].slice.call(document.querySelectorAll("" + Selector$5.STICKY_CONTENT));
          $(elements).each(function (index, element) {
            var margin = $(element).data('margin-right');
    
            if (typeof margin !== 'undefined') {
              $(element).css('margin-right', margin).removeData('margin-right');
            }
          }); // Restore body padding
    
          var padding = $(document.body).data('padding-right');
          $(document.body).removeData('padding-right');
          document.body.style.paddingRight = padding ? padding : '';
        };
    
        _proto._getScrollbarWidth = function _getScrollbarWidth() {
          // thx d.walsh
          var scrollDiv = document.createElement('div');
          scrollDiv.className = ClassName$5.SCROLLBAR_MEASURER;
          document.body.appendChild(scrollDiv);
          var scrollbarWidth = scrollDiv.getBoundingClientRect().width - scrollDiv.clientWidth;
          document.body.removeChild(scrollDiv);
          return scrollbarWidth;
        } // Static
        ;
    
        Modal._jQueryInterface = function _jQueryInterface(config, relatedTarget) {
          return this.each(function () {
            var data = $(this).data(DATA_KEY$5);
    
            var _config = _objectSpread({}, Default$3, $(this).data(), typeof config === 'object' && config ? config : {});
    
            if (!data) {
              data = new Modal(this, _config);
              $(this).data(DATA_KEY$5, data);
            }
    
            if (typeof config === 'string') {
              if (typeof data[config] === 'undefined') {
                throw new TypeError("No method named \"" + config + "\"");
              }
    
              data[config](relatedTarget);
            } else if (_config.show) {
              data.show(relatedTarget);
            }
          });
        };
    
        _createClass(Modal, null, [{
          key: "VERSION",
          get: function get() {
            return VERSION$5;
          }
        }, {
          key: "Default",
          get: function get() {
            return Default$3;
          }
        }]);
    
        return Modal;
      }();
      /**
       * ------------------------------------------------------------------------
       * Data Api implementation
       * ------------------------------------------------------------------------
       */
    
    
      $(document).on(Event$5.CLICK_DATA_API, Selector$5.DATA_TOGGLE, function (event) {
        var _this10 = this;
    
        var target;
        var selector = Util.getSelectorFromElement(this);
    
        if (selector) {
          target = document.querySelector(selector);
        }
    
        var config = $(target).data(DATA_KEY$5) ? 'toggle' : _objectSpread({}, $(target).data(), $(this).data());
    
        if (this.tagName === 'A' || this.tagName === 'AREA') {
          event.preventDefault();
        }
    
        var $target = $(target).one(Event$5.SHOW, function (showEvent) {
          if (showEvent.isDefaultPrevented()) {
            // Only register focus restorer if modal will actually get shown
            return;
          }
    
          $target.one(Event$5.HIDDEN, function () {
            if ($(_this10).is(':visible')) {
              _this10.focus();
            }
          });
        });
    
        Modal._jQueryInterface.call($(target), config, this);
      });
      /**
       * ------------------------------------------------------------------------
       * jQuery
       * ------------------------------------------------------------------------
       */
    
      $.fn[NAME$5] = Modal._jQueryInterface;
      $.fn[NAME$5].Constructor = Modal;
    
      $.fn[NAME$5].noConflict = function () {
        $.fn[NAME$5] = JQUERY_NO_CONFLICT$5;
        return Modal._jQueryInterface;
      };
    
      /**
       * --------------------------------------------------------------------------
       * Bootstrap (v4.3.1): tools/sanitizer.js
       * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
       * --------------------------------------------------------------------------
       */
      var uriAttrs = ['background', 'cite', 'href', 'itemtype', 'longdesc', 'poster', 'src', 'xlink:href'];
      var ARIA_ATTRIBUTE_PATTERN = /^aria-[\w-]*$/i;
      var DefaultWhitelist = {
        // Global attributes allowed on any supplied element below.
        '*': ['class', 'dir', 'id', 'lang', 'role', ARIA_ATTRIBUTE_PATTERN],
        a: ['target', 'href', 'title', 'rel'],
        area: [],
        b: [],
        br: [],
        col: [],
        code: [],
        div: [],
        em: [],
        hr: [],
        h1: [],
        h2: [],
        h3: [],
        h4: [],
        h5: [],
        h6: [],
        i: [],
        img: ['src', 'alt', 'title', 'width', 'height'],
        li: [],
        ol: [],
        p: [],
        pre: [],
        s: [],
        small: [],
        span: [],
        sub: [],
        sup: [],
        strong: [],
        u: [],
        ul: []
        /**
         * A pattern that recognizes a commonly useful subset of URLs that are safe.
         *
         * Shoutout to Angular 7 https://github.com/angular/angular/blob/7.2.4/packages/core/src/sanitization/url_sanitizer.ts
         */
    
      };
      var SAFE_URL_PATTERN = /^(?:(?:https?|mailto|ftp|tel|file):|[^&:/?#]*(?:[/?#]|$))/gi;
      /**
       * A pattern that matches safe data URLs. Only matches image, video and audio types.
       *
       * Shoutout to Angular 7 https://github.com/angular/angular/blob/7.2.4/packages/core/src/sanitization/url_sanitizer.ts
       */
    
      var DATA_URL_PATTERN = /^data:(?:image\/(?:bmp|gif|jpeg|jpg|png|tiff|webp)|video\/(?:mpeg|mp4|ogg|webm)|audio\/(?:mp3|oga|ogg|opus));base64,[a-z0-9+/]+=*$/i;
    
      function allowedAttribute(attr, allowedAttributeList) {
        var attrName = attr.nodeName.toLowerCase();
    
        if (allowedAttributeList.indexOf(attrName) !== -1) {
          if (uriAttrs.indexOf(attrName) !== -1) {
            return Boolean(attr.nodeValue.match(SAFE_URL_PATTERN) || attr.nodeValue.match(DATA_URL_PATTERN));
          }
    
          return true;
        }
    
        var regExp = allowedAttributeList.filter(function (attrRegex) {
          return attrRegex instanceof RegExp;
        }); // Check if a regular expression validates the attribute.
    
        for (var i = 0, l = regExp.length; i < l; i++) {
          if (attrName.match(regExp[i])) {
            return true;
          }
        }
    
        return false;
      }
    
      function sanitizeHtml(unsafeHtml, whiteList, sanitizeFn) {
        if (unsafeHtml.length === 0) {
          return unsafeHtml;
        }
    
        if (sanitizeFn && typeof sanitizeFn === 'function') {
          return sanitizeFn(unsafeHtml);
        }
    
        var domParser = new window.DOMParser();
        var createdDocument = domParser.parseFromString(unsafeHtml, 'text/html');
        var whitelistKeys = Object.keys(whiteList);
        var elements = [].slice.call(createdDocument.body.querySelectorAll('*'));
    
        var _loop = function _loop(i, len) {
          var el = elements[i];
          var elName = el.nodeName.toLowerCase();
    
          if (whitelistKeys.indexOf(el.nodeName.toLowerCase()) === -1) {
            el.parentNode.removeChild(el);
            return "continue";
          }
    
          var attributeList = [].slice.call(el.attributes);
          var whitelistedAttributes = [].concat(whiteList['*'] || [], whiteList[elName] || []);
          attributeList.forEach(function (attr) {
            if (!allowedAttribute(attr, whitelistedAttributes)) {
              el.removeAttribute(attr.nodeName);
            }
          });
        };
    
        for (var i = 0, len = elements.length; i < len; i++) {
          var _ret = _loop(i, len);
    
          if (_ret === "continue") continue;
        }
    
        return createdDocument.body.innerHTML;
      }
    
      /**
       * ------------------------------------------------------------------------
       * Constants
       * ------------------------------------------------------------------------
       */
    
      var NAME$6 = 'tooltip';
      var VERSION$6 = '4.3.1';
      var DATA_KEY$6 = 'bs.tooltip';
      var EVENT_KEY$6 = "." + DATA_KEY$6;
      var JQUERY_NO_CONFLICT$6 = $.fn[NAME$6];
      var CLASS_PREFIX = 'bs-tooltip';
      var BSCLS_PREFIX_REGEX = new RegExp("(^|\\s)" + CLASS_PREFIX + "\\S+", 'g');
      var DISALLOWED_ATTRIBUTES = ['sanitize', 'whiteList', 'sanitizeFn'];
      var DefaultType$4 = {
        animation: 'boolean',
        template: 'string',
        title: '(string|element|function)',
        trigger: 'string',
        delay: '(number|object)',
        html: 'boolean',
        selector: '(string|boolean)',
        placement: '(string|function)',
        offset: '(number|string|function)',
        container: '(string|element|boolean)',
        fallbackPlacement: '(string|array)',
        boundary: '(string|element)',
        sanitize: 'boolean',
        sanitizeFn: '(null|function)',
        whiteList: 'object'
      };
      var AttachmentMap$1 = {
        AUTO: 'auto',
        TOP: 'top',
        RIGHT: 'right',
        BOTTOM: 'bottom',
        LEFT: 'left'
      };
      var Default$4 = {
        animation: true,
        template: '<div class="tooltip" role="tooltip">' + '<div class="arrow"></div>' + '<div class="tooltip-inner"></div></div>',
        trigger: 'hover focus',
        title: '',
        delay: 0,
        html: false,
        selector: false,
        placement: 'top',
        offset: 0,
        container: false,
        fallbackPlacement: 'flip',
        boundary: 'scrollParent',
        sanitize: true,
        sanitizeFn: null,
        whiteList: DefaultWhitelist
      };
      var HoverState = {
        SHOW: 'show',
        OUT: 'out'
      };
      var Event$6 = {
        HIDE: "hide" + EVENT_KEY$6,
        HIDDEN: "hidden" + EVENT_KEY$6,
        SHOW: "show" + EVENT_KEY$6,
        SHOWN: "shown" + EVENT_KEY$6,
        INSERTED: "inserted" + EVENT_KEY$6,
        CLICK: "click" + EVENT_KEY$6,
        FOCUSIN: "focusin" + EVENT_KEY$6,
        FOCUSOUT: "focusout" + EVENT_KEY$6,
        MOUSEENTER: "mouseenter" + EVENT_KEY$6,
        MOUSELEAVE: "mouseleave" + EVENT_KEY$6
      };
      var ClassName$6 = {
        FADE: 'fade',
        SHOW: 'show'
      };
      var Selector$6 = {
        TOOLTIP: '.tooltip',
        TOOLTIP_INNER: '.tooltip-inner',
        ARROW: '.arrow'
      };
      var Trigger = {
        HOVER: 'hover',
        FOCUS: 'focus',
        CLICK: 'click',
        MANUAL: 'manual'
        /**
         * ------------------------------------------------------------------------
         * Class Definition
         * ------------------------------------------------------------------------
         */
    
      };
    
      var Tooltip =
      /*#__PURE__*/
      function () {
        function Tooltip(element, config) {
          /**
           * Check for Popper dependency
           * Popper - https://popper.js.org
           */
          if (typeof Popper === 'undefined') {
            throw new TypeError('Bootstrap\'s tooltips require Popper.js (https://popper.js.org/)');
          } // private
    
    
          this._isEnabled = true;
          this._timeout = 0;
          this._hoverState = '';
          this._activeTrigger = {};
          this._popper = null; // Protected
    
          this.element = element;
          this.config = this._getConfig(config);
          this.tip = null;
    
          this._setListeners();
        } // Getters
    
    
        var _proto = Tooltip.prototype;
    
        // Public
        _proto.enable = function enable() {
          this._isEnabled = true;
        };
    
        _proto.disable = function disable() {
          this._isEnabled = false;
        };
    
        _proto.toggleEnabled = function toggleEnabled() {
          this._isEnabled = !this._isEnabled;
        };
    
        _proto.toggle = function toggle(event) {
          if (!this._isEnabled) {
            return;
          }
    
          if (event) {
            var dataKey = this.constructor.DATA_KEY;
            var context = $(event.currentTarget).data(dataKey);
    
            if (!context) {
              context = new this.constructor(event.currentTarget, this._getDelegateConfig());
              $(event.currentTarget).data(dataKey, context);
            }
    
            context._activeTrigger.click = !context._activeTrigger.click;
    
            if (context._isWithActiveTrigger()) {
              context._enter(null, context);
            } else {
              context._leave(null, context);
            }
          } else {
            if ($(this.getTipElement()).hasClass(ClassName$6.SHOW)) {
              this._leave(null, this);
    
              return;
            }
    
            this._enter(null, this);
          }
        };
    
        _proto.dispose = function dispose() {
          clearTimeout(this._timeout);
          $.removeData(this.element, this.constructor.DATA_KEY);
          $(this.element).off(this.constructor.EVENT_KEY);
          $(this.element).closest('.modal').off('hide.bs.modal');
    
          if (this.tip) {
            $(this.tip).remove();
          }
    
          this._isEnabled = null;
          this._timeout = null;
          this._hoverState = null;
          this._activeTrigger = null;
    
          if (this._popper !== null) {
            this._popper.destroy();
          }
    
          this._popper = null;
          this.element = null;
          this.config = null;
          this.tip = null;
        };
    
        _proto.show = function show() {
          var _this = this;
    
          if ($(this.element).css('display') === 'none') {
            throw new Error('Please use show on visible elements');
          }
    
          var showEvent = $.Event(this.constructor.Event.SHOW);
    
          if (this.isWithContent() && this._isEnabled) {
            $(this.element).trigger(showEvent);
            var shadowRoot = Util.findShadowRoot(this.element);
            var isInTheDom = $.contains(shadowRoot !== null ? shadowRoot : this.element.ownerDocument.documentElement, this.element);
    
            if (showEvent.isDefaultPrevented() || !isInTheDom) {
              return;
            }
    
            var tip = this.getTipElement();
            var tipId = Util.getUID(this.constructor.NAME);
            tip.setAttribute('id', tipId);
            this.element.setAttribute('aria-describedby', tipId);
            this.setContent();
    
            if (this.config.animation) {
              $(tip).addClass(ClassName$6.FADE);
            }
    
            var placement = typeof this.config.placement === 'function' ? this.config.placement.call(this, tip, this.element) : this.config.placement;
    
            var attachment = this._getAttachment(placement);
    
            this.addAttachmentClass(attachment);
    
            var container = this._getContainer();
    
            $(tip).data(this.constructor.DATA_KEY, this);
    
            if (!$.contains(this.element.ownerDocument.documentElement, this.tip)) {
              $(tip).appendTo(container);
            }
    
            $(this.element).trigger(this.constructor.Event.INSERTED);
            this._popper = new Popper(this.element, tip, {
              placement: attachment,
              modifiers: {
                offset: this._getOffset(),
                flip: {
                  behavior: this.config.fallbackPlacement
                },
                arrow: {
                  element: Selector$6.ARROW
                },
                preventOverflow: {
                  boundariesElement: this.config.boundary
                }
              },
              onCreate: function onCreate(data) {
                if (data.originalPlacement !== data.placement) {
                  _this._handlePopperPlacementChange(data);
                }
              },
              onUpdate: function onUpdate(data) {
                return _this._handlePopperPlacementChange(data);
              }
            });
            $(tip).addClass(ClassName$6.SHOW); // If this is a touch-enabled device we add extra
            // empty mouseover listeners to the body's immediate children;
            // only needed because of broken event delegation on iOS
            // https://www.quirksmode.org/blog/archives/2014/02/mouse_event_bub.html
    
            if ('ontouchstart' in document.documentElement) {
              $(document.body).children().on('mouseover', null, $.noop);
            }
    
            var complete = function complete() {
              if (_this.config.animation) {
                _this._fixTransition();
              }
    
              var prevHoverState = _this._hoverState;
              _this._hoverState = null;
              $(_this.element).trigger(_this.constructor.Event.SHOWN);
    
              if (prevHoverState === HoverState.OUT) {
                _this._leave(null, _this);
              }
            };
    
            if ($(this.tip).hasClass(ClassName$6.FADE)) {
              var transitionDuration = Util.getTransitionDurationFromElement(this.tip);
              $(this.tip).one(Util.TRANSITION_END, complete).emulateTransitionEnd(transitionDuration);
            } else {
              complete();
            }
          }
        };
    
        _proto.hide = function hide(callback) {
          var _this2 = this;
    
          var tip = this.getTipElement();
          var hideEvent = $.Event(this.constructor.Event.HIDE);
    
          var complete = function complete() {
            if (_this2._hoverState !== HoverState.SHOW && tip.parentNode) {
              tip.parentNode.removeChild(tip);
            }
    
            _this2._cleanTipClass();
    
            _this2.element.removeAttribute('aria-describedby');
    
            $(_this2.element).trigger(_this2.constructor.Event.HIDDEN);
    
            if (_this2._popper !== null) {
              _this2._popper.destroy();
            }
    
            if (callback) {
              callback();
            }
          };
    
          $(this.element).trigger(hideEvent);
    
          if (hideEvent.isDefaultPrevented()) {
            return;
          }
    
          $(tip).removeClass(ClassName$6.SHOW); // If this is a touch-enabled device we remove the extra
          // empty mouseover listeners we added for iOS support
    
          if ('ontouchstart' in document.documentElement) {
            $(document.body).children().off('mouseover', null, $.noop);
          }
    
          this._activeTrigger[Trigger.CLICK] = false;
          this._activeTrigger[Trigger.FOCUS] = false;
          this._activeTrigger[Trigger.HOVER] = false;
    
          if ($(this.tip).hasClass(ClassName$6.FADE)) {
            var transitionDuration = Util.getTransitionDurationFromElement(tip);
            $(tip).one(Util.TRANSITION_END, complete).emulateTransitionEnd(transitionDuration);
          } else {
            complete();
          }
    
          this._hoverState = '';
        };
    
        _proto.update = function update() {
          if (this._popper !== null) {
            this._popper.scheduleUpdate();
          }
        } // Protected
        ;
    
        _proto.isWithContent = function isWithContent() {
          return Boolean(this.getTitle());
        };
    
        _proto.addAttachmentClass = function addAttachmentClass(attachment) {
          $(this.getTipElement()).addClass(CLASS_PREFIX + "-" + attachment);
        };
    
        _proto.getTipElement = function getTipElement() {
          this.tip = this.tip || $(this.config.template)[0];
          return this.tip;
        };
    
        _proto.setContent = function setContent() {
          var tip = this.getTipElement();
          this.setElementContent($(tip.querySelectorAll(Selector$6.TOOLTIP_INNER)), this.getTitle());
          $(tip).removeClass(ClassName$6.FADE + " " + ClassName$6.SHOW);
        };
    
        _proto.setElementContent = function setElementContent($element, content) {
          if (typeof content === 'object' && (content.nodeType || content.jquery)) {
            // Content is a DOM node or a jQuery
            if (this.config.html) {
              if (!$(content).parent().is($element)) {
                $element.empty().append(content);
              }
            } else {
              $element.text($(content).text());
            }
    
            return;
          }
    
          if (this.config.html) {
            if (this.config.sanitize) {
              content = sanitizeHtml(content, this.config.whiteList, this.config.sanitizeFn);
            }
    
            $element.html(content);
          } else {
            $element.text(content);
          }
        };
    
        _proto.getTitle = function getTitle() {
          var title = this.element.getAttribute('data-original-title');
    
          if (!title) {
            title = typeof this.config.title === 'function' ? this.config.title.call(this.element) : this.config.title;
          }
    
          return title;
        } // Private
        ;
    
        _proto._getOffset = function _getOffset() {
          var _this3 = this;
    
          var offset = {};
    
          if (typeof this.config.offset === 'function') {
            offset.fn = function (data) {
              data.offsets = _objectSpread({}, data.offsets, _this3.config.offset(data.offsets, _this3.element) || {});
              return data;
            };
          } else {
            offset.offset = this.config.offset;
          }
    
          return offset;
        };
    
        _proto._getContainer = function _getContainer() {
          if (this.config.container === false) {
            return document.body;
          }
    
          if (Util.isElement(this.config.container)) {
            return $(this.config.container);
          }
    
          return $(document).find(this.config.container);
        };
    
        _proto._getAttachment = function _getAttachment(placement) {
          return AttachmentMap$1[placement.toUpperCase()];
        };
    
        _proto._setListeners = function _setListeners() {
          var _this4 = this;
    
          var triggers = this.config.trigger.split(' ');
          triggers.forEach(function (trigger) {
            if (trigger === 'click') {
              $(_this4.element).on(_this4.constructor.Event.CLICK, _this4.config.selector, function (event) {
                return _this4.toggle(event);
              });
            } else if (trigger !== Trigger.MANUAL) {
              var eventIn = trigger === Trigger.HOVER ? _this4.constructor.Event.MOUSEENTER : _this4.constructor.Event.FOCUSIN;
              var eventOut = trigger === Trigger.HOVER ? _this4.constructor.Event.MOUSELEAVE : _this4.constructor.Event.FOCUSOUT;
              $(_this4.element).on(eventIn, _this4.config.selector, function (event) {
                return _this4._enter(event);
              }).on(eventOut, _this4.config.selector, function (event) {
                return _this4._leave(event);
              });
            }
          });
          $(this.element).closest('.modal').on('hide.bs.modal', function () {
            if (_this4.element) {
              _this4.hide();
            }
          });
    
          if (this.config.selector) {
            this.config = _objectSpread({}, this.config, {
              trigger: 'manual',
              selector: ''
            });
          } else {
            this._fixTitle();
          }
        };
    
        _proto._fixTitle = function _fixTitle() {
          var titleType = typeof this.element.getAttribute('data-original-title');
    
          if (this.element.getAttribute('title') || titleType !== 'string') {
            this.element.setAttribute('data-original-title', this.element.getAttribute('title') || '');
            this.element.setAttribute('title', '');
          }
        };
    
        _proto._enter = function _enter(event, context) {
          var dataKey = this.constructor.DATA_KEY;
          context = context || $(event.currentTarget).data(dataKey);
    
          if (!context) {
            context = new this.constructor(event.currentTarget, this._getDelegateConfig());
            $(event.currentTarget).data(dataKey, context);
          }
    
          if (event) {
            context._activeTrigger[event.type === 'focusin' ? Trigger.FOCUS : Trigger.HOVER] = true;
          }
    
          if ($(context.getTipElement()).hasClass(ClassName$6.SHOW) || context._hoverState === HoverState.SHOW) {
            context._hoverState = HoverState.SHOW;
            return;
          }
    
          clearTimeout(context._timeout);
          context._hoverState = HoverState.SHOW;
    
          if (!context.config.delay || !context.config.delay.show) {
            context.show();
            return;
          }
    
          context._timeout = setTimeout(function () {
            if (context._hoverState === HoverState.SHOW) {
              context.show();
            }
          }, context.config.delay.show);
        };
    
        _proto._leave = function _leave(event, context) {
          var dataKey = this.constructor.DATA_KEY;
          context = context || $(event.currentTarget).data(dataKey);
    
          if (!context) {
            context = new this.constructor(event.currentTarget, this._getDelegateConfig());
            $(event.currentTarget).data(dataKey, context);
          }
    
          if (event) {
            context._activeTrigger[event.type === 'focusout' ? Trigger.FOCUS : Trigger.HOVER] = false;
          }
    
          if (context._isWithActiveTrigger()) {
            return;
          }
    
          clearTimeout(context._timeout);
          context._hoverState = HoverState.OUT;
    
          if (!context.config.delay || !context.config.delay.hide) {
            context.hide();
            return;
          }
    
          context._timeout = setTimeout(function () {
            if (context._hoverState === HoverState.OUT) {
              context.hide();
            }
          }, context.config.delay.hide);
        };
    
        _proto._isWithActiveTrigger = function _isWithActiveTrigger() {
          for (var trigger in this._activeTrigger) {
            if (this._activeTrigger[trigger]) {
              return true;
            }
          }
    
          return false;
        };
    
        _proto._getConfig = function _getConfig(config) {
          var dataAttributes = $(this.element).data();
          Object.keys(dataAttributes).forEach(function (dataAttr) {
            if (DISALLOWED_ATTRIBUTES.indexOf(dataAttr) !== -1) {
              delete dataAttributes[dataAttr];
            }
          });
          config = _objectSpread({}, this.constructor.Default, dataAttributes, typeof config === 'object' && config ? config : {});
    
          if (typeof config.delay === 'number') {
            config.delay = {
              show: config.delay,
              hide: config.delay
            };
          }
    
          if (typeof config.title === 'number') {
            config.title = config.title.toString();
          }
    
          if (typeof config.content === 'number') {
            config.content = config.content.toString();
          }
    
          Util.typeCheckConfig(NAME$6, config, this.constructor.DefaultType);
    
          if (config.sanitize) {
            config.template = sanitizeHtml(config.template, config.whiteList, config.sanitizeFn);
          }
    
          return config;
        };
    
        _proto._getDelegateConfig = function _getDelegateConfig() {
          var config = {};
    
          if (this.config) {
            for (var key in this.config) {
              if (this.constructor.Default[key] !== this.config[key]) {
                config[key] = this.config[key];
              }
            }
          }
    
          return config;
        };
    
        _proto._cleanTipClass = function _cleanTipClass() {
          var $tip = $(this.getTipElement());
          var tabClass = $tip.attr('class').match(BSCLS_PREFIX_REGEX);
    
          if (tabClass !== null && tabClass.length) {
            $tip.removeClass(tabClass.join(''));
          }
        };
    
        _proto._handlePopperPlacementChange = function _handlePopperPlacementChange(popperData) {
          var popperInstance = popperData.instance;
          this.tip = popperInstance.popper;
    
          this._cleanTipClass();
    
          this.addAttachmentClass(this._getAttachment(popperData.placement));
        };
    
        _proto._fixTransition = function _fixTransition() {
          var tip = this.getTipElement();
          var initConfigAnimation = this.config.animation;
    
          if (tip.getAttribute('x-placement') !== null) {
            return;
          }
    
          $(tip).removeClass(ClassName$6.FADE);
          this.config.animation = false;
          this.hide();
          this.show();
          this.config.animation = initConfigAnimation;
        } // Static
        ;
    
        Tooltip._jQueryInterface = function _jQueryInterface(config) {
          return this.each(function () {
            var data = $(this).data(DATA_KEY$6);
    
            var _config = typeof config === 'object' && config;
    
            if (!data && /dispose|hide/.test(config)) {
              return;
            }
    
            if (!data) {
              data = new Tooltip(this, _config);
              $(this).data(DATA_KEY$6, data);
            }
    
            if (typeof config === 'string') {
              if (typeof data[config] === 'undefined') {
                throw new TypeError("No method named \"" + config + "\"");
              }
    
              data[config]();
            }
          });
        };
    
        _createClass(Tooltip, null, [{
          key: "VERSION",
          get: function get() {
            return VERSION$6;
          }
        }, {
          key: "Default",
          get: function get() {
            return Default$4;
          }
        }, {
          key: "NAME",
          get: function get() {
            return NAME$6;
          }
        }, {
          key: "DATA_KEY",
          get: function get() {
            return DATA_KEY$6;
          }
        }, {
          key: "Event",
          get: function get() {
            return Event$6;
          }
        }, {
          key: "EVENT_KEY",
          get: function get() {
            return EVENT_KEY$6;
          }
        }, {
          key: "DefaultType",
          get: function get() {
            return DefaultType$4;
          }
        }]);
    
        return Tooltip;
      }();
      /**
       * ------------------------------------------------------------------------
       * jQuery
       * ------------------------------------------------------------------------
       */
    
    
      $.fn[NAME$6] = Tooltip._jQueryInterface;
      $.fn[NAME$6].Constructor = Tooltip;
    
      $.fn[NAME$6].noConflict = function () {
        $.fn[NAME$6] = JQUERY_NO_CONFLICT$6;
        return Tooltip._jQueryInterface;
      };
    
      /**
       * ------------------------------------------------------------------------
       * Constants
       * ------------------------------------------------------------------------
       */
    
      var NAME$7 = 'popover';
      var VERSION$7 = '4.3.1';
      var DATA_KEY$7 = 'bs.popover';
      var EVENT_KEY$7 = "." + DATA_KEY$7;
      var JQUERY_NO_CONFLICT$7 = $.fn[NAME$7];
      var CLASS_PREFIX$1 = 'bs-popover';
      var BSCLS_PREFIX_REGEX$1 = new RegExp("(^|\\s)" + CLASS_PREFIX$1 + "\\S+", 'g');
    
      var Default$5 = _objectSpread({}, Tooltip.Default, {
        placement: 'right',
        trigger: 'click',
        content: '',
        template: '<div class="popover" role="tooltip">' + '<div class="arrow"></div>' + '<h3 class="popover-header"></h3>' + '<div class="popover-body"></div></div>'
      });
    
      var DefaultType$5 = _objectSpread({}, Tooltip.DefaultType, {
        content: '(string|element|function)'
      });
    
      var ClassName$7 = {
        FADE: 'fade',
        SHOW: 'show'
      };
      var Selector$7 = {
        TITLE: '.popover-header',
        CONTENT: '.popover-body'
      };
      var Event$7 = {
        HIDE: "hide" + EVENT_KEY$7,
        HIDDEN: "hidden" + EVENT_KEY$7,
        SHOW: "show" + EVENT_KEY$7,
        SHOWN: "shown" + EVENT_KEY$7,
        INSERTED: "inserted" + EVENT_KEY$7,
        CLICK: "click" + EVENT_KEY$7,
        FOCUSIN: "focusin" + EVENT_KEY$7,
        FOCUSOUT: "focusout" + EVENT_KEY$7,
        MOUSEENTER: "mouseenter" + EVENT_KEY$7,
        MOUSELEAVE: "mouseleave" + EVENT_KEY$7
        /**
         * ------------------------------------------------------------------------
         * Class Definition
         * ------------------------------------------------------------------------
         */
    
      };
    
      var Popover =
      /*#__PURE__*/
      function (_Tooltip) {
        _inheritsLoose(Popover, _Tooltip);
    
        function Popover() {
          return _Tooltip.apply(this, arguments) || this;
        }
    
        var _proto = Popover.prototype;
    
        // Overrides
        _proto.isWithContent = function isWithContent() {
          return this.getTitle() || this._getContent();
        };
    
        _proto.addAttachmentClass = function addAttachmentClass(attachment) {
          $(this.getTipElement()).addClass(CLASS_PREFIX$1 + "-" + attachment);
        };
    
        _proto.getTipElement = function getTipElement() {
          this.tip = this.tip || $(this.config.template)[0];
          return this.tip;
        };
    
        _proto.setContent = function setContent() {
          var $tip = $(this.getTipElement()); // We use append for html objects to maintain js events
    
          this.setElementContent($tip.find(Selector$7.TITLE), this.getTitle());
    
          var content = this._getContent();
    
          if (typeof content === 'function') {
            content = content.call(this.element);
          }
    
          this.setElementContent($tip.find(Selector$7.CONTENT), content);
          $tip.removeClass(ClassName$7.FADE + " " + ClassName$7.SHOW);
        } // Private
        ;
    
        _proto._getContent = function _getContent() {
          return this.element.getAttribute('data-content') || this.config.content;
        };
    
        _proto._cleanTipClass = function _cleanTipClass() {
          var $tip = $(this.getTipElement());
          var tabClass = $tip.attr('class').match(BSCLS_PREFIX_REGEX$1);
    
          if (tabClass !== null && tabClass.length > 0) {
            $tip.removeClass(tabClass.join(''));
          }
        } // Static
        ;
    
        Popover._jQueryInterface = function _jQueryInterface(config) {
          return this.each(function () {
            var data = $(this).data(DATA_KEY$7);
    
            var _config = typeof config === 'object' ? config : null;
    
            if (!data && /dispose|hide/.test(config)) {
              return;
            }
    
            if (!data) {
              data = new Popover(this, _config);
              $(this).data(DATA_KEY$7, data);
            }
    
            if (typeof config === 'string') {
              if (typeof data[config] === 'undefined') {
                throw new TypeError("No method named \"" + config + "\"");
              }
    
              data[config]();
            }
          });
        };
    
        _createClass(Popover, null, [{
          key: "VERSION",
          // Getters
          get: function get() {
            return VERSION$7;
          }
        }, {
          key: "Default",
          get: function get() {
            return Default$5;
          }
        }, {
          key: "NAME",
          get: function get() {
            return NAME$7;
          }
        }, {
          key: "DATA_KEY",
          get: function get() {
            return DATA_KEY$7;
          }
        }, {
          key: "Event",
          get: function get() {
            return Event$7;
          }
        }, {
          key: "EVENT_KEY",
          get: function get() {
            return EVENT_KEY$7;
          }
        }, {
          key: "DefaultType",
          get: function get() {
            return DefaultType$5;
          }
        }]);
    
        return Popover;
      }(Tooltip);
      /**
       * ------------------------------------------------------------------------
       * jQuery
       * ------------------------------------------------------------------------
       */
    
    
      $.fn[NAME$7] = Popover._jQueryInterface;
      $.fn[NAME$7].Constructor = Popover;
    
      $.fn[NAME$7].noConflict = function () {
        $.fn[NAME$7] = JQUERY_NO_CONFLICT$7;
        return Popover._jQueryInterface;
      };
    
      /**
       * ------------------------------------------------------------------------
       * Constants
       * ------------------------------------------------------------------------
       */
    
      var NAME$8 = 'scrollspy';
      var VERSION$8 = '4.3.1';
      var DATA_KEY$8 = 'bs.scrollspy';
      var EVENT_KEY$8 = "." + DATA_KEY$8;
      var DATA_API_KEY$6 = '.data-api';
      var JQUERY_NO_CONFLICT$8 = $.fn[NAME$8];
      var Default$6 = {
        offset: 10,
        method: 'auto',
        target: ''
      };
      var DefaultType$6 = {
        offset: 'number',
        method: 'string',
        target: '(string|element)'
      };
      var Event$8 = {
        ACTIVATE: "activate" + EVENT_KEY$8,
        SCROLL: "scroll" + EVENT_KEY$8,
        LOAD_DATA_API: "load" + EVENT_KEY$8 + DATA_API_KEY$6
      };
      var ClassName$8 = {
        DROPDOWN_ITEM: 'dropdown-item',
        DROPDOWN_MENU: 'dropdown-menu',
        ACTIVE: 'active'
      };
      var Selector$8 = {
        DATA_SPY: '[data-spy="scroll"]',
        ACTIVE: '.active',
        NAV_LIST_GROUP: '.nav, .list-group',
        NAV_LINKS: '.nav-link',
        NAV_ITEMS: '.nav-item',
        LIST_ITEMS: '.list-group-item',
        DROPDOWN: '.dropdown',
        DROPDOWN_ITEMS: '.dropdown-item',
        DROPDOWN_TOGGLE: '.dropdown-toggle'
      };
      var OffsetMethod = {
        OFFSET: 'offset',
        POSITION: 'position'
        /**
         * ------------------------------------------------------------------------
         * Class Definition
         * ------------------------------------------------------------------------
         */
    
      };
    
      var ScrollSpy =
      /*#__PURE__*/
      function () {
        function ScrollSpy(element, config) {
          var _this = this;
    
          this._element = element;
          this._scrollElement = element.tagName === 'BODY' ? window : element;
          this._config = this._getConfig(config);
          this._selector = this._config.target + " " + Selector$8.NAV_LINKS + "," + (this._config.target + " " + Selector$8.LIST_ITEMS + ",") + (this._config.target + " " + Selector$8.DROPDOWN_ITEMS);
          this._offsets = [];
          this._targets = [];
          this._activeTarget = null;
          this._scrollHeight = 0;
          $(this._scrollElement).on(Event$8.SCROLL, function (event) {
            return _this._process(event);
          });
          this.refresh();
    
          this._process();
        } // Getters
    
    
        var _proto = ScrollSpy.prototype;
    
        // Public
        _proto.refresh = function refresh() {
          var _this2 = this;
    
          var autoMethod = this._scrollElement === this._scrollElement.window ? OffsetMethod.OFFSET : OffsetMethod.POSITION;
          var offsetMethod = this._config.method === 'auto' ? autoMethod : this._config.method;
          var offsetBase = offsetMethod === OffsetMethod.POSITION ? this._getScrollTop() : 0;
          this._offsets = [];
          this._targets = [];
          this._scrollHeight = this._getScrollHeight();
          var targets = [].slice.call(document.querySelectorAll(this._selector));
          targets.map(function (element) {
            var target;
            var targetSelector = Util.getSelectorFromElement(element);
    
            if (targetSelector) {
              target = document.querySelector(targetSelector);
            }
    
            if (target) {
              var targetBCR = target.getBoundingClientRect();
    
              if (targetBCR.width || targetBCR.height) {
                // TODO (fat): remove sketch reliance on jQuery position/offset
                return [$(target)[offsetMethod]().top + offsetBase, targetSelector];
              }
            }
    
            return null;
          }).filter(function (item) {
            return item;
          }).sort(function (a, b) {
            return a[0] - b[0];
          }).forEach(function (item) {
            _this2._offsets.push(item[0]);
    
            _this2._targets.push(item[1]);
          });
        };
    
        _proto.dispose = function dispose() {
          $.removeData(this._element, DATA_KEY$8);
          $(this._scrollElement).off(EVENT_KEY$8);
          this._element = null;
          this._scrollElement = null;
          this._config = null;
          this._selector = null;
          this._offsets = null;
          this._targets = null;
          this._activeTarget = null;
          this._scrollHeight = null;
        } // Private
        ;
    
        _proto._getConfig = function _getConfig(config) {
          config = _objectSpread({}, Default$6, typeof config === 'object' && config ? config : {});
    
          if (typeof config.target !== 'string') {
            var id = $(config.target).attr('id');
    
            if (!id) {
              id = Util.getUID(NAME$8);
              $(config.target).attr('id', id);
            }
    
            config.target = "#" + id;
          }
    
          Util.typeCheckConfig(NAME$8, config, DefaultType$6);
          return config;
        };
    
        _proto._getScrollTop = function _getScrollTop() {
          return this._scrollElement === window ? this._scrollElement.pageYOffset : this._scrollElement.scrollTop;
        };
    
        _proto._getScrollHeight = function _getScrollHeight() {
          return this._scrollElement.scrollHeight || Math.max(document.body.scrollHeight, document.documentElement.scrollHeight);
        };
    
        _proto._getOffsetHeight = function _getOffsetHeight() {
          return this._scrollElement === window ? window.innerHeight : this._scrollElement.getBoundingClientRect().height;
        };
    
        _proto._process = function _process() {
          var scrollTop = this._getScrollTop() + this._config.offset;
    
          var scrollHeight = this._getScrollHeight();
    
          var maxScroll = this._config.offset + scrollHeight - this._getOffsetHeight();
    
          if (this._scrollHeight !== scrollHeight) {
            this.refresh();
          }
    
          if (scrollTop >= maxScroll) {
            var target = this._targets[this._targets.length - 1];
    
            if (this._activeTarget !== target) {
              this._activate(target);
            }
    
            return;
          }
    
          if (this._activeTarget && scrollTop < this._offsets[0] && this._offsets[0] > 0) {
            this._activeTarget = null;
    
            this._clear();
    
            return;
          }
    
          var offsetLength = this._offsets.length;
    
          for (var i = offsetLength; i--;) {
            var isActiveTarget = this._activeTarget !== this._targets[i] && scrollTop >= this._offsets[i] && (typeof this._offsets[i + 1] === 'undefined' || scrollTop < this._offsets[i + 1]);
    
            if (isActiveTarget) {
              this._activate(this._targets[i]);
            }
          }
        };
    
        _proto._activate = function _activate(target) {
          this._activeTarget = target;
    
          this._clear();
    
          var queries = this._selector.split(',').map(function (selector) {
            return selector + "[data-target=\"" + target + "\"]," + selector + "[href=\"" + target + "\"]";
          });
    
          var $link = $([].slice.call(document.querySelectorAll(queries.join(','))));
    
          if ($link.hasClass(ClassName$8.DROPDOWN_ITEM)) {
            $link.closest(Selector$8.DROPDOWN).find(Selector$8.DROPDOWN_TOGGLE).addClass(ClassName$8.ACTIVE);
            $link.addClass(ClassName$8.ACTIVE);
          } else {
            // Set triggered link as active
            $link.addClass(ClassName$8.ACTIVE); // Set triggered links parents as active
            // With both <ul> and <nav> markup a parent is the previous sibling of any nav ancestor
    
            $link.parents(Selector$8.NAV_LIST_GROUP).prev(Selector$8.NAV_LINKS + ", " + Selector$8.LIST_ITEMS).addClass(ClassName$8.ACTIVE); // Handle special case when .nav-link is inside .nav-item
    
            $link.parents(Selector$8.NAV_LIST_GROUP).prev(Selector$8.NAV_ITEMS).children(Selector$8.NAV_LINKS).addClass(ClassName$8.ACTIVE);
          }
    
          $(this._scrollElement).trigger(Event$8.ACTIVATE, {
            relatedTarget: target
          });
        };
    
        _proto._clear = function _clear() {
          [].slice.call(document.querySelectorAll(this._selector)).filter(function (node) {
            return node.classList.contains(ClassName$8.ACTIVE);
          }).forEach(function (node) {
            return node.classList.remove(ClassName$8.ACTIVE);
          });
        } // Static
        ;
    
        ScrollSpy._jQueryInterface = function _jQueryInterface(config) {
          return this.each(function () {
            var data = $(this).data(DATA_KEY$8);
    
            var _config = typeof config === 'object' && config;
    
            if (!data) {
              data = new ScrollSpy(this, _config);
              $(this).data(DATA_KEY$8, data);
            }
    
            if (typeof config === 'string') {
              if (typeof data[config] === 'undefined') {
                throw new TypeError("No method named \"" + config + "\"");
              }
    
              data[config]();
            }
          });
        };
    
        _createClass(ScrollSpy, null, [{
          key: "VERSION",
          get: function get() {
            return VERSION$8;
          }
        }, {
          key: "Default",
          get: function get() {
            return Default$6;
          }
        }]);
    
        return ScrollSpy;
      }();
      /**
       * ------------------------------------------------------------------------
       * Data Api implementation
       * ------------------------------------------------------------------------
       */
    
    
      $(window).on(Event$8.LOAD_DATA_API, function () {
        var scrollSpys = [].slice.call(document.querySelectorAll(Selector$8.DATA_SPY));
        var scrollSpysLength = scrollSpys.length;
    
        for (var i = scrollSpysLength; i--;) {
          var $spy = $(scrollSpys[i]);
    
          ScrollSpy._jQueryInterface.call($spy, $spy.data());
        }
      });
      /**
       * ------------------------------------------------------------------------
       * jQuery
       * ------------------------------------------------------------------------
       */
    
      $.fn[NAME$8] = ScrollSpy._jQueryInterface;
      $.fn[NAME$8].Constructor = ScrollSpy;
    
      $.fn[NAME$8].noConflict = function () {
        $.fn[NAME$8] = JQUERY_NO_CONFLICT$8;
        return ScrollSpy._jQueryInterface;
      };
    
      /**
       * ------------------------------------------------------------------------
       * Constants
       * ------------------------------------------------------------------------
       */
    
      var NAME$9 = 'tab';
      var VERSION$9 = '4.3.1';
      var DATA_KEY$9 = 'bs.tab';
      var EVENT_KEY$9 = "." + DATA_KEY$9;
      var DATA_API_KEY$7 = '.data-api';
      var JQUERY_NO_CONFLICT$9 = $.fn[NAME$9];
      var Event$9 = {
        HIDE: "hide" + EVENT_KEY$9,
        HIDDEN: "hidden" + EVENT_KEY$9,
        SHOW: "show" + EVENT_KEY$9,
        SHOWN: "shown" + EVENT_KEY$9,
        CLICK_DATA_API: "click" + EVENT_KEY$9 + DATA_API_KEY$7
      };
      var ClassName$9 = {
        DROPDOWN_MENU: 'dropdown-menu',
        ACTIVE: 'active',
        DISABLED: 'disabled',
        FADE: 'fade',
        SHOW: 'show'
      };
      var Selector$9 = {
        DROPDOWN: '.dropdown',
        NAV_LIST_GROUP: '.nav, .list-group',
        ACTIVE: '.active',
        ACTIVE_UL: '> li > .active',
        DATA_TOGGLE: '[data-toggle="tab"], [data-toggle="pill"], [data-toggle="list"]',
        DROPDOWN_TOGGLE: '.dropdown-toggle',
        DROPDOWN_ACTIVE_CHILD: '> .dropdown-menu .active'
        /**
         * ------------------------------------------------------------------------
         * Class Definition
         * ------------------------------------------------------------------------
         */
    
      };
    
      var Tab =
      /*#__PURE__*/
      function () {
        function Tab(element) {
          this._element = element;
        } // Getters
    
    
        var _proto = Tab.prototype;
    
        // Public
        _proto.show = function show() {
          var _this = this;
    
          if (this._element.parentNode && this._element.parentNode.nodeType === Node.ELEMENT_NODE && $(this._element).hasClass(ClassName$9.ACTIVE) || $(this._element).hasClass(ClassName$9.DISABLED)) {
            return;
          }
    
          var target;
          var previous;
          var listElement = $(this._element).closest(Selector$9.NAV_LIST_GROUP)[0];
          var selector = Util.getSelectorFromElement(this._element);
    
          if (listElement) {
            var itemSelector = listElement.nodeName === 'UL' || listElement.nodeName === 'OL' ? Selector$9.ACTIVE_UL : Selector$9.ACTIVE;
            previous = $.makeArray($(listElement).find(itemSelector));
            previous = previous[previous.length - 1];
          }
    
          var hideEvent = $.Event(Event$9.HIDE, {
            relatedTarget: this._element
          });
          var showEvent = $.Event(Event$9.SHOW, {
            relatedTarget: previous
          });
    
          if (previous) {
            $(previous).trigger(hideEvent);
          }
    
          $(this._element).trigger(showEvent);
    
          if (showEvent.isDefaultPrevented() || hideEvent.isDefaultPrevented()) {
            return;
          }
    
          if (selector) {
            target = document.querySelector(selector);
          }
    
          this._activate(this._element, listElement);
    
          var complete = function complete() {
            var hiddenEvent = $.Event(Event$9.HIDDEN, {
              relatedTarget: _this._element
            });
            var shownEvent = $.Event(Event$9.SHOWN, {
              relatedTarget: previous
            });
            $(previous).trigger(hiddenEvent);
            $(_this._element).trigger(shownEvent);
          };
    
          if (target) {
            this._activate(target, target.parentNode, complete);
          } else {
            complete();
          }
        };
    
        _proto.dispose = function dispose() {
          $.removeData(this._element, DATA_KEY$9);
          this._element = null;
        } // Private
        ;
    
        _proto._activate = function _activate(element, container, callback) {
          var _this2 = this;
    
          var activeElements = container && (container.nodeName === 'UL' || container.nodeName === 'OL') ? $(container).find(Selector$9.ACTIVE_UL) : $(container).children(Selector$9.ACTIVE);
          var active = activeElements[0];
          var isTransitioning = callback && active && $(active).hasClass(ClassName$9.FADE);
    
          var complete = function complete() {
            return _this2._transitionComplete(element, active, callback);
          };
    
          if (active && isTransitioning) {
            var transitionDuration = Util.getTransitionDurationFromElement(active);
            $(active).removeClass(ClassName$9.SHOW).one(Util.TRANSITION_END, complete).emulateTransitionEnd(transitionDuration);
          } else {
            complete();
          }
        };
    
        _proto._transitionComplete = function _transitionComplete(element, active, callback) {
          if (active) {
            $(active).removeClass(ClassName$9.ACTIVE);
            var dropdownChild = $(active.parentNode).find(Selector$9.DROPDOWN_ACTIVE_CHILD)[0];
    
            if (dropdownChild) {
              $(dropdownChild).removeClass(ClassName$9.ACTIVE);
            }
    
            if (active.getAttribute('role') === 'tab') {
              active.setAttribute('aria-selected', false);
            }
          }
    
          $(element).addClass(ClassName$9.ACTIVE);
    
          if (element.getAttribute('role') === 'tab') {
            element.setAttribute('aria-selected', true);
          }
    
          Util.reflow(element);
    
          if (element.classList.contains(ClassName$9.FADE)) {
            element.classList.add(ClassName$9.SHOW);
          }
    
          if (element.parentNode && $(element.parentNode).hasClass(ClassName$9.DROPDOWN_MENU)) {
            var dropdownElement = $(element).closest(Selector$9.DROPDOWN)[0];
    
            if (dropdownElement) {
              var dropdownToggleList = [].slice.call(dropdownElement.querySelectorAll(Selector$9.DROPDOWN_TOGGLE));
              $(dropdownToggleList).addClass(ClassName$9.ACTIVE);
            }
    
            element.setAttribute('aria-expanded', true);
          }
    
          if (callback) {
            callback();
          }
        } // Static
        ;
    
        Tab._jQueryInterface = function _jQueryInterface(config) {
          return this.each(function () {
            var $this = $(this);
            var data = $this.data(DATA_KEY$9);
    
            if (!data) {
              data = new Tab(this);
              $this.data(DATA_KEY$9, data);
            }
    
            if (typeof config === 'string') {
              if (typeof data[config] === 'undefined') {
                throw new TypeError("No method named \"" + config + "\"");
              }
    
              data[config]();
            }
          });
        };
    
        _createClass(Tab, null, [{
          key: "VERSION",
          get: function get() {
            return VERSION$9;
          }
        }]);
    
        return Tab;
      }();
      /**
       * ------------------------------------------------------------------------
       * Data Api implementation
       * ------------------------------------------------------------------------
       */
    
    
      $(document).on(Event$9.CLICK_DATA_API, Selector$9.DATA_TOGGLE, function (event) {
        event.preventDefault();
    
        Tab._jQueryInterface.call($(this), 'show');
      });
      /**
       * ------------------------------------------------------------------------
       * jQuery
       * ------------------------------------------------------------------------
       */
    
      $.fn[NAME$9] = Tab._jQueryInterface;
      $.fn[NAME$9].Constructor = Tab;
    
      $.fn[NAME$9].noConflict = function () {
        $.fn[NAME$9] = JQUERY_NO_CONFLICT$9;
        return Tab._jQueryInterface;
      };
    
      /**
       * ------------------------------------------------------------------------
       * Constants
       * ------------------------------------------------------------------------
       */
    
      var NAME$a = 'toast';
      var VERSION$a = '4.3.1';
      var DATA_KEY$a = 'bs.toast';
      var EVENT_KEY$a = "." + DATA_KEY$a;
      var JQUERY_NO_CONFLICT$a = $.fn[NAME$a];
      var Event$a = {
        CLICK_DISMISS: "click.dismiss" + EVENT_KEY$a,
        HIDE: "hide" + EVENT_KEY$a,
        HIDDEN: "hidden" + EVENT_KEY$a,
        SHOW: "show" + EVENT_KEY$a,
        SHOWN: "shown" + EVENT_KEY$a
      };
      var ClassName$a = {
        FADE: 'fade',
        HIDE: 'hide',
        SHOW: 'show',
        SHOWING: 'showing'
      };
      var DefaultType$7 = {
        animation: 'boolean',
        autohide: 'boolean',
        delay: 'number'
      };
      var Default$7 = {
        animation: true,
        autohide: true,
        delay: 500
      };
      var Selector$a = {
        DATA_DISMISS: '[data-dismiss="toast"]'
        /**
         * ------------------------------------------------------------------------
         * Class Definition
         * ------------------------------------------------------------------------
         */
    
      };
    
      var Toast =
      /*#__PURE__*/
      function () {
        function Toast(element, config) {
          this._element = element;
          this._config = this._getConfig(config);
          this._timeout = null;
    
          this._setListeners();
        } // Getters
    
    
        var _proto = Toast.prototype;
    
        // Public
        _proto.show = function show() {
          var _this = this;
    
          $(this._element).trigger(Event$a.SHOW);
    
          if (this._config.animation) {
            this._element.classList.add(ClassName$a.FADE);
          }
    
          var complete = function complete() {
            _this._element.classList.remove(ClassName$a.SHOWING);
    
            _this._element.classList.add(ClassName$a.SHOW);
    
            $(_this._element).trigger(Event$a.SHOWN);
    
            if (_this._config.autohide) {
              _this.hide();
            }
          };
    
          this._element.classList.remove(ClassName$a.HIDE);
    
          this._element.classList.add(ClassName$a.SHOWING);
    
          if (this._config.animation) {
            var transitionDuration = Util.getTransitionDurationFromElement(this._element);
            $(this._element).one(Util.TRANSITION_END, complete).emulateTransitionEnd(transitionDuration);
          } else {
            complete();
          }
        };
    
        _proto.hide = function hide(withoutTimeout) {
          var _this2 = this;
    
          if (!this._element.classList.contains(ClassName$a.SHOW)) {
            return;
          }
    
          $(this._element).trigger(Event$a.HIDE);
    
          if (withoutTimeout) {
            this._close();
          } else {
            this._timeout = setTimeout(function () {
              _this2._close();
            }, this._config.delay);
          }
        };
    
        _proto.dispose = function dispose() {
          clearTimeout(this._timeout);
          this._timeout = null;
    
          if (this._element.classList.contains(ClassName$a.SHOW)) {
            this._element.classList.remove(ClassName$a.SHOW);
          }
    
          $(this._element).off(Event$a.CLICK_DISMISS);
          $.removeData(this._element, DATA_KEY$a);
          this._element = null;
          this._config = null;
        } // Private
        ;
    
        _proto._getConfig = function _getConfig(config) {
          config = _objectSpread({}, Default$7, $(this._element).data(), typeof config === 'object' && config ? config : {});
          Util.typeCheckConfig(NAME$a, config, this.constructor.DefaultType);
          return config;
        };
    
        _proto._setListeners = function _setListeners() {
          var _this3 = this;
    
          $(this._element).on(Event$a.CLICK_DISMISS, Selector$a.DATA_DISMISS, function () {
            return _this3.hide(true);
          });
        };
    
        _proto._close = function _close() {
          var _this4 = this;
    
          var complete = function complete() {
            _this4._element.classList.add(ClassName$a.HIDE);
    
            $(_this4._element).trigger(Event$a.HIDDEN);
          };
    
          this._element.classList.remove(ClassName$a.SHOW);
    
          if (this._config.animation) {
            var transitionDuration = Util.getTransitionDurationFromElement(this._element);
            $(this._element).one(Util.TRANSITION_END, complete).emulateTransitionEnd(transitionDuration);
          } else {
            complete();
          }
        } // Static
        ;
    
        Toast._jQueryInterface = function _jQueryInterface(config) {
          return this.each(function () {
            var $element = $(this);
            var data = $element.data(DATA_KEY$a);
    
            var _config = typeof config === 'object' && config;
    
            if (!data) {
              data = new Toast(this, _config);
              $element.data(DATA_KEY$a, data);
            }
    
            if (typeof config === 'string') {
              if (typeof data[config] === 'undefined') {
                throw new TypeError("No method named \"" + config + "\"");
              }
    
              data[config](this);
            }
          });
        };
    
        _createClass(Toast, null, [{
          key: "VERSION",
          get: function get() {
            return VERSION$a;
          }
        }, {
          key: "DefaultType",
          get: function get() {
            return DefaultType$7;
          }
        }, {
          key: "Default",
          get: function get() {
            return Default$7;
          }
        }]);
    
        return Toast;
      }();
      /**
       * ------------------------------------------------------------------------
       * jQuery
       * ------------------------------------------------------------------------
       */
    
    
      $.fn[NAME$a] = Toast._jQueryInterface;
      $.fn[NAME$a].Constructor = Toast;
    
      $.fn[NAME$a].noConflict = function () {
        $.fn[NAME$a] = JQUERY_NO_CONFLICT$a;
        return Toast._jQueryInterface;
      };
    
      /**
       * --------------------------------------------------------------------------
       * Bootstrap (v4.3.1): index.js
       * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
       * --------------------------------------------------------------------------
       */
    
      (function () {
        if (typeof $ === 'undefined') {
          throw new TypeError('Bootstrap\'s JavaScript requires jQuery. jQuery must be included before Bootstrap\'s JavaScript.');
        }
    
        var version = $.fn.jquery.split(' ')[0].split('.');
        var minMajor = 1;
        var ltMajor = 2;
        var minMinor = 9;
        var minPatch = 1;
        var maxMajor = 4;
    
        if (version[0] < ltMajor && version[1] < minMinor || version[0] === minMajor && version[1] === minMinor && version[2] < minPatch || version[0] >= maxMajor) {
          throw new Error('Bootstrap\'s JavaScript requires at least jQuery v1.9.1 but less than v4.0.0');
        }
      })();
    
      exports.Util = Util;
      exports.Alert = Alert;
      exports.Button = Button;
      exports.Carousel = Carousel;
      exports.Collapse = Collapse;
      exports.Dropdown = Dropdown;
      exports.Modal = Modal;
      exports.Popover = Popover;
      exports.Scrollspy = ScrollSpy;
      exports.Tab = Tab;
      exports.Toast = Toast;
      exports.Tooltip = Tooltip;
    
      Object.defineProperty(exports, '__esModule', { value: true });
    
    }));
    //# sourceMappingURL=bootstrap.js.map
    
    
    /***/ }),
    
    /***/ "./node_modules/is-buffer/index.js":
    /*!*****************************************!*\
      !*** ./node_modules/is-buffer/index.js ***!
      \*****************************************/
    /*! no static exports found */
    /***/ (function(module, exports) {
    
    /*!
     * Determine if an object is a Buffer
     *
     * @author   Feross Aboukhadijeh <https://feross.org>
     * @license  MIT
     */
    
    module.exports = function isBuffer (obj) {
      return obj != null && obj.constructor != null &&
        typeof obj.constructor.isBuffer === 'function' && obj.constructor.isBuffer(obj)
    }
    
    
    /***/ }),
    
    /***/ "./node_modules/jquery/dist/jquery.js":
    /*!********************************************!*\
      !*** ./node_modules/jquery/dist/jquery.js ***!
      \********************************************/
    /*! no static exports found */
    /***/ (function(module, exports, __webpack_require__) {
    
    var __WEBPACK_AMD_DEFINE_ARRAY__, __WEBPACK_AMD_DEFINE_RESULT__;/*!
     * jQuery JavaScript Library v3.4.1
     * https://jquery.com/
     *
     * Includes Sizzle.js
     * https://sizzlejs.com/
     *
     * Copyright JS Foundation and other contributors
     * Released under the MIT license
     * https://jquery.org/license
     *
     * Date: 2019-05-01T21:04Z
     */
    ( function( global, factory ) {
    
        "use strict";
    
        if (  true && typeof module.exports === "object" ) {
    
            // For CommonJS and CommonJS-like environments where a proper `window`
            // is present, execute the factory and get jQuery.
            // For environments that do not have a `window` with a `document`
            // (such as Node.js), expose a factory as module.exports.
            // This accentuates the need for the creation of a real `window`.
            // e.g. var jQuery = require("jquery")(window);
            // See ticket #14549 for more info.
            module.exports = global.document ?
                factory( global, true ) :
                function( w ) {
                    if ( !w.document ) {
                        throw new Error( "jQuery requires a window with a document" );
                    }
                    return factory( w );
                };
        } else {
            factory( global );
        }
    
    // Pass this if window is not defined yet
    } )( typeof window !== "undefined" ? window : this, function( window, noGlobal ) {
    
    // Edge <= 12 - 13+, Firefox <=18 - 45+, IE 10 - 11, Safari 5.1 - 9+, iOS 6 - 9.1
    // throw exceptions when non-strict code (e.g., ASP.NET 4.5) accesses strict mode
    // arguments.callee.caller (trac-13335). But as of jQuery 3.0 (2016), strict mode should be common
    // enough that all such attempts are guarded in a try block.
    "use strict";
    
    var arr = [];
    
    var document = window.document;
    
    var getProto = Object.getPrototypeOf;
    
    var slice = arr.slice;
    
    var concat = arr.concat;
    
    var push = arr.push;
    
    var indexOf = arr.indexOf;
    
    var class2type = {};
    
    var toString = class2type.toString;
    
    var hasOwn = class2type.hasOwnProperty;
    
    var fnToString = hasOwn.toString;
    
    var ObjectFunctionString = fnToString.call( Object );
    
    var support = {};
    
    var isFunction = function isFunction( obj ) {
    
          // Support: Chrome <=57, Firefox <=52
          // In some browsers, typeof returns "function" for HTML <object> elements
          // (i.e., `typeof document.createElement( "object" ) === "function"`).
          // We don't want to classify *any* DOM node as a function.
          return typeof obj === "function" && typeof obj.nodeType !== "number";
      };
    
    
    var isWindow = function isWindow( obj ) {
            return obj != null && obj === obj.window;
        };
    
    
    
    
        var preservedScriptAttributes = {
            type: true,
            src: true,
            nonce: true,
            noModule: true
        };
    
        function DOMEval( code, node, doc ) {
            doc = doc || document;
    
            var i, val,
                script = doc.createElement( "script" );
    
            script.text = code;
            if ( node ) {
                for ( i in preservedScriptAttributes ) {
    
                    // Support: Firefox 64+, Edge 18+
                    // Some browsers don't support the "nonce" property on scripts.
                    // On the other hand, just using `getAttribute` is not enough as
                    // the `nonce` attribute is reset to an empty string whenever it
                    // becomes browsing-context connected.
                    // See https://github.com/whatwg/html/issues/2369
                    // See https://html.spec.whatwg.org/#nonce-attributes
                    // The `node.getAttribute` check was added for the sake of
                    // `jQuery.globalEval` so that it can fake a nonce-containing node
                    // via an object.
                    val = node[ i ] || node.getAttribute && node.getAttribute( i );
                    if ( val ) {
                        script.setAttribute( i, val );
                    }
                }
            }
            doc.head.appendChild( script ).parentNode.removeChild( script );
        }
    
    
    function toType( obj ) {
        if ( obj == null ) {
            return obj + "";
        }
    
        // Support: Android <=2.3 only (functionish RegExp)
        return typeof obj === "object" || typeof obj === "function" ?
            class2type[ toString.call( obj ) ] || "object" :
            typeof obj;
    }
    /* global Symbol */
    // Defining this global in .eslintrc.json would create a danger of using the global
    // unguarded in another place, it seems safer to define global only for this module
    
    
    
    var
        version = "3.4.1",
    
        // Define a local copy of jQuery
        jQuery = function( selector, context ) {
    
            // The jQuery object is actually just the init constructor 'enhanced'
            // Need init if jQuery is called (just allow error to be thrown if not included)
            return new jQuery.fn.init( selector, context );
        },
    
        // Support: Android <=4.0 only
        // Make sure we trim BOM and NBSP
        rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g;
    
    jQuery.fn = jQuery.prototype = {
    
        // The current version of jQuery being used
        jquery: version,
    
        constructor: jQuery,
    
        // The default length of a jQuery object is 0
        length: 0,
    
        toArray: function() {
            return slice.call( this );
        },
    
        // Get the Nth element in the matched element set OR
        // Get the whole matched element set as a clean array
        get: function( num ) {
    
            // Return all the elements in a clean array
            if ( num == null ) {
                return slice.call( this );
            }
    
            // Return just the one element from the set
            return num < 0 ? this[ num + this.length ] : this[ num ];
        },
    
        // Take an array of elements and push it onto the stack
        // (returning the new matched element set)
        pushStack: function( elems ) {
    
            // Build a new jQuery matched element set
            var ret = jQuery.merge( this.constructor(), elems );
    
            // Add the old object onto the stack (as a reference)
            ret.prevObject = this;
    
            // Return the newly-formed element set
            return ret;
        },
    
        // Execute a callback for every element in the matched set.
        each: function( callback ) {
            return jQuery.each( this, callback );
        },
    
        map: function( callback ) {
            return this.pushStack( jQuery.map( this, function( elem, i ) {
                return callback.call( elem, i, elem );
            } ) );
        },
    
        slice: function() {
            return this.pushStack( slice.apply( this, arguments ) );
        },
    
        first: function() {
            return this.eq( 0 );
        },
    
        last: function() {
            return this.eq( -1 );
        },
    
        eq: function( i ) {
            var len = this.length,
                j = +i + ( i < 0 ? len : 0 );
            return this.pushStack( j >= 0 && j < len ? [ this[ j ] ] : [] );
        },
    
        end: function() {
            return this.prevObject || this.constructor();
        },
    
        // For internal use only.
        // Behaves like an Array's method, not like a jQuery method.
        push: push,
        sort: arr.sort,
        splice: arr.splice
    };
    
    jQuery.extend = jQuery.fn.extend = function() {
        var options, name, src, copy, copyIsArray, clone,
            target = arguments[ 0 ] || {},
            i = 1,
            length = arguments.length,
            deep = false;
    
        // Handle a deep copy situation
        if ( typeof target === "boolean" ) {
            deep = target;
    
            // Skip the boolean and the target
            target = arguments[ i ] || {};
            i++;
        }
    
        // Handle case when target is a string or something (possible in deep copy)
        if ( typeof target !== "object" && !isFunction( target ) ) {
            target = {};
        }
    
        // Extend jQuery itself if only one argument is passed
        if ( i === length ) {
            target = this;
            i--;
        }
    
        for ( ; i < length; i++ ) {
    
            // Only deal with non-null/undefined values
            if ( ( options = arguments[ i ] ) != null ) {
    
                // Extend the base object
                for ( name in options ) {
                    copy = options[ name ];
    
                    // Prevent Object.prototype pollution
                    // Prevent never-ending loop
                    if ( name === "__proto__" || target === copy ) {
                        continue;
                    }
    
                    // Recurse if we're merging plain objects or arrays
                    if ( deep && copy && ( jQuery.isPlainObject( copy ) ||
                        ( copyIsArray = Array.isArray( copy ) ) ) ) {
                        src = target[ name ];
    
                        // Ensure proper type for the source value
                        if ( copyIsArray && !Array.isArray( src ) ) {
                            clone = [];
                        } else if ( !copyIsArray && !jQuery.isPlainObject( src ) ) {
                            clone = {};
                        } else {
                            clone = src;
                        }
                        copyIsArray = false;
    
                        // Never move original objects, clone them
                        target[ name ] = jQuery.extend( deep, clone, copy );
    
                    // Don't bring in undefined values
                    } else if ( copy !== undefined ) {
                        target[ name ] = copy;
                    }
                }
            }
        }
    
        // Return the modified object
        return target;
    };
    
    jQuery.extend( {
    
        // Unique for each copy of jQuery on the page
        expando: "jQuery" + ( version + Math.random() ).replace( /\D/g, "" ),
    
        // Assume jQuery is ready without the ready module
        isReady: true,
    
        error: function( msg ) {
            throw new Error( msg );
        },
    
        noop: function() {},
    
        isPlainObject: function( obj ) {
            var proto, Ctor;
    
            // Detect obvious negatives
            // Use toString instead of jQuery.type to catch host objects
            if ( !obj || toString.call( obj ) !== "[object Object]" ) {
                return false;
            }
    
            proto = getProto( obj );
    
            // Objects with no prototype (e.g., `Object.create( null )`) are plain
            if ( !proto ) {
                return true;
            }
    
            // Objects with prototype are plain iff they were constructed by a global Object function
            Ctor = hasOwn.call( proto, "constructor" ) && proto.constructor;
            return typeof Ctor === "function" && fnToString.call( Ctor ) === ObjectFunctionString;
        },
    
        isEmptyObject: function( obj ) {
            var name;
    
            for ( name in obj ) {
                return false;
            }
            return true;
        },
    
        // Evaluates a script in a global context
        globalEval: function( code, options ) {
            DOMEval( code, { nonce: options && options.nonce } );
        },
    
        each: function( obj, callback ) {
            var length, i = 0;
    
            if ( isArrayLike( obj ) ) {
                length = obj.length;
                for ( ; i < length; i++ ) {
                    if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {
                        break;
                    }
                }
            } else {
                for ( i in obj ) {
                    if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {
                        break;
                    }
                }
            }
    
            return obj;
        },
    
        // Support: Android <=4.0 only
        trim: function( text ) {
            return text == null ?
                "" :
                ( text + "" ).replace( rtrim, "" );
        },
    
        // results is for internal usage only
        makeArray: function( arr, results ) {
            var ret = results || [];
    
            if ( arr != null ) {
                if ( isArrayLike( Object( arr ) ) ) {
                    jQuery.merge( ret,
                        typeof arr === "string" ?
                        [ arr ] : arr
                    );
                } else {
                    push.call( ret, arr );
                }
            }
    
            return ret;
        },
    
        inArray: function( elem, arr, i ) {
            return arr == null ? -1 : indexOf.call( arr, elem, i );
        },
    
        // Support: Android <=4.0 only, PhantomJS 1 only
        // push.apply(_, arraylike) throws on ancient WebKit
        merge: function( first, second ) {
            var len = +second.length,
                j = 0,
                i = first.length;
    
            for ( ; j < len; j++ ) {
                first[ i++ ] = second[ j ];
            }
    
            first.length = i;
    
            return first;
        },
    
        grep: function( elems, callback, invert ) {
            var callbackInverse,
                matches = [],
                i = 0,
                length = elems.length,
                callbackExpect = !invert;
    
            // Go through the array, only saving the items
            // that pass the validator function
            for ( ; i < length; i++ ) {
                callbackInverse = !callback( elems[ i ], i );
                if ( callbackInverse !== callbackExpect ) {
                    matches.push( elems[ i ] );
                }
            }
    
            return matches;
        },
    
        // arg is for internal usage only
        map: function( elems, callback, arg ) {
            var length, value,
                i = 0,
                ret = [];
    
            // Go through the array, translating each of the items to their new values
            if ( isArrayLike( elems ) ) {
                length = elems.length;
                for ( ; i < length; i++ ) {
                    value = callback( elems[ i ], i, arg );
    
                    if ( value != null ) {
                        ret.push( value );
                    }
                }
    
            // Go through every key on the object,
            } else {
                for ( i in elems ) {
                    value = callback( elems[ i ], i, arg );
    
                    if ( value != null ) {
                        ret.push( value );
                    }
                }
            }
    
            // Flatten any nested arrays
            return concat.apply( [], ret );
        },
    
        // A global GUID counter for objects
        guid: 1,
    
        // jQuery.support is not used in Core but other projects attach their
        // properties to it so it needs to exist.
        support: support
    } );
    
    if ( typeof Symbol === "function" ) {
        jQuery.fn[ Symbol.iterator ] = arr[ Symbol.iterator ];
    }
    
    // Populate the class2type map
    jQuery.each( "Boolean Number String Function Array Date RegExp Object Error Symbol".split( " " ),
    function( i, name ) {
        class2type[ "[object " + name + "]" ] = name.toLowerCase();
    } );
    
    function isArrayLike( obj ) {
    
        // Support: real iOS 8.2 only (not reproducible in simulator)
        // `in` check used to prevent JIT error (gh-2145)
        // hasOwn isn't used here due to false negatives
        // regarding Nodelist length in IE
        var length = !!obj && "length" in obj && obj.length,
            type = toType( obj );
    
        if ( isFunction( obj ) || isWindow( obj ) ) {
            return false;
        }
    
        return type === "array" || length === 0 ||
            typeof length === "number" && length > 0 && ( length - 1 ) in obj;
    }
    var Sizzle =
    /*!
     * Sizzle CSS Selector Engine v2.3.4
     * https://sizzlejs.com/
     *
     * Copyright JS Foundation and other contributors
     * Released under the MIT license
     * https://js.foundation/
     *
     * Date: 2019-04-08
     */
    (function( window ) {
    
    var i,
        support,
        Expr,
        getText,
        isXML,
        tokenize,
        compile,
        select,
        outermostContext,
        sortInput,
        hasDuplicate,
    
        // Local document vars
        setDocument,
        document,
        docElem,
        documentIsHTML,
        rbuggyQSA,
        rbuggyMatches,
        matches,
        contains,
    
        // Instance-specific data
        expando = "sizzle" + 1 * new Date(),
        preferredDoc = window.document,
        dirruns = 0,
        done = 0,
        classCache = createCache(),
        tokenCache = createCache(),
        compilerCache = createCache(),
        nonnativeSelectorCache = createCache(),
        sortOrder = function( a, b ) {
            if ( a === b ) {
                hasDuplicate = true;
            }
            return 0;
        },
    
        // Instance methods
        hasOwn = ({}).hasOwnProperty,
        arr = [],
        pop = arr.pop,
        push_native = arr.push,
        push = arr.push,
        slice = arr.slice,
        // Use a stripped-down indexOf as it's faster than native
        // https://jsperf.com/thor-indexof-vs-for/5
        indexOf = function( list, elem ) {
            var i = 0,
                len = list.length;
            for ( ; i < len; i++ ) {
                if ( list[i] === elem ) {
                    return i;
                }
            }
            return -1;
        },
    
        booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|scoped",
    
        // Regular expressions
    
        // http://www.w3.org/TR/css3-selectors/#whitespace
        whitespace = "[\\x20\\t\\r\\n\\f]",
    
        // http://www.w3.org/TR/CSS21/syndata.html#value-def-identifier
        identifier = "(?:\\\\.|[\\w-]|[^\0-\\xa0])+",
    
        // Attribute selectors: http://www.w3.org/TR/selectors/#attribute-selectors
        attributes = "\\[" + whitespace + "*(" + identifier + ")(?:" + whitespace +
            // Operator (capture 2)
            "*([*^$|!~]?=)" + whitespace +
            // "Attribute values must be CSS identifiers [capture 5] or strings [capture 3 or capture 4]"
            "*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|(" + identifier + "))|)" + whitespace +
            "*\\]",
    
        pseudos = ":(" + identifier + ")(?:\\((" +
            // To reduce the number of selectors needing tokenize in the preFilter, prefer arguments:
            // 1. quoted (capture 3; capture 4 or capture 5)
            "('((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\")|" +
            // 2. simple (capture 6)
            "((?:\\\\.|[^\\\\()[\\]]|" + attributes + ")*)|" +
            // 3. anything else (capture 2)
            ".*" +
            ")\\)|)",
    
        // Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter
        rwhitespace = new RegExp( whitespace + "+", "g" ),
        rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + whitespace + "+$", "g" ),
    
        rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ),
        rcombinators = new RegExp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace + "*" ),
        rdescend = new RegExp( whitespace + "|>" ),
    
        rpseudo = new RegExp( pseudos ),
        ridentifier = new RegExp( "^" + identifier + "$" ),
    
        matchExpr = {
            "ID": new RegExp( "^#(" + identifier + ")" ),
            "CLASS": new RegExp( "^\\.(" + identifier + ")" ),
            "TAG": new RegExp( "^(" + identifier + "|[*])" ),
            "ATTR": new RegExp( "^" + attributes ),
            "PSEUDO": new RegExp( "^" + pseudos ),
            "CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" + whitespace +
                "*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" + whitespace +
                "*(\\d+)|))" + whitespace + "*\\)|)", "i" ),
            "bool": new RegExp( "^(?:" + booleans + ")$", "i" ),
            // For use in libraries implementing .is()
            // We use this for POS matching in `select`
            "needsContext": new RegExp( "^" + whitespace + "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" +
                whitespace + "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" )
        },
    
        rhtml = /HTML$/i,
        rinputs = /^(?:input|select|textarea|button)$/i,
        rheader = /^h\d$/i,
    
        rnative = /^[^{]+\{\s*\[native \w/,
    
        // Easily-parseable/retrievable ID or TAG or CLASS selectors
        rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,
    
        rsibling = /[+~]/,
    
        // CSS escapes
        // http://www.w3.org/TR/CSS21/syndata.html#escaped-characters
        runescape = new RegExp( "\\\\([\\da-f]{1,6}" + whitespace + "?|(" + whitespace + ")|.)", "ig" ),
        funescape = function( _, escaped, escapedWhitespace ) {
            var high = "0x" + escaped - 0x10000;
            // NaN means non-codepoint
            // Support: Firefox<24
            // Workaround erroneous numeric interpretation of +"0x"
            return high !== high || escapedWhitespace ?
                escaped :
                high < 0 ?
                    // BMP codepoint
                    String.fromCharCode( high + 0x10000 ) :
                    // Supplemental Plane codepoint (surrogate pair)
                    String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 );
        },
    
        // CSS string/identifier serialization
        // https://drafts.csswg.org/cssom/#common-serializing-idioms
        rcssescape = /([\0-\x1f\x7f]|^-?\d)|^-$|[^\0-\x1f\x7f-\uFFFF\w-]/g,
        fcssescape = function( ch, asCodePoint ) {
            if ( asCodePoint ) {
    
                // U+0000 NULL becomes U+FFFD REPLACEMENT CHARACTER
                if ( ch === "\0" ) {
                    return "\uFFFD";
                }
    
                // Control characters and (dependent upon position) numbers get escaped as code points
                return ch.slice( 0, -1 ) + "\\" + ch.charCodeAt( ch.length - 1 ).toString( 16 ) + " ";
            }
    
            // Other potentially-special ASCII characters get backslash-escaped
            return "\\" + ch;
        },
    
        // Used for iframes
        // See setDocument()
        // Removing the function wrapper causes a "Permission Denied"
        // error in IE
        unloadHandler = function() {
            setDocument();
        },
    
        inDisabledFieldset = addCombinator(
            function( elem ) {
                return elem.disabled === true && elem.nodeName.toLowerCase() === "fieldset";
            },
            { dir: "parentNode", next: "legend" }
        );
    
    // Optimize for push.apply( _, NodeList )
    try {
        push.apply(
            (arr = slice.call( preferredDoc.childNodes )),
            preferredDoc.childNodes
        );
        // Support: Android<4.0
        // Detect silently failing push.apply
        arr[ preferredDoc.childNodes.length ].nodeType;
    } catch ( e ) {
        push = { apply: arr.length ?
    
            // Leverage slice if possible
            function( target, els ) {
                push_native.apply( target, slice.call(els) );
            } :
    
            // Support: IE<9
            // Otherwise append directly
            function( target, els ) {
                var j = target.length,
                    i = 0;
                // Can't trust NodeList.length
                while ( (target[j++] = els[i++]) ) {}
                target.length = j - 1;
            }
        };
    }
    
    function Sizzle( selector, context, results, seed ) {
        var m, i, elem, nid, match, groups, newSelector,
            newContext = context && context.ownerDocument,
    
            // nodeType defaults to 9, since context defaults to document
            nodeType = context ? context.nodeType : 9;
    
        results = results || [];
    
        // Return early from calls with invalid selector or context
        if ( typeof selector !== "string" || !selector ||
            nodeType !== 1 && nodeType !== 9 && nodeType !== 11 ) {
    
            return results;
        }
    
        // Try to shortcut find operations (as opposed to filters) in HTML documents
        if ( !seed ) {
    
            if ( ( context ? context.ownerDocument || context : preferredDoc ) !== document ) {
                setDocument( context );
            }
            context = context || document;
    
            if ( documentIsHTML ) {
    
                // If the selector is sufficiently simple, try using a "get*By*" DOM method
                // (excepting DocumentFragment context, where the methods don't exist)
                if ( nodeType !== 11 && (match = rquickExpr.exec( selector )) ) {
    
                    // ID selector
                    if ( (m = match[1]) ) {
    
                        // Document context
                        if ( nodeType === 9 ) {
                            if ( (elem = context.getElementById( m )) ) {
    
                                // Support: IE, Opera, Webkit
                                // TODO: identify versions
                                // getElementById can match elements by name instead of ID
                                if ( elem.id === m ) {
                                    results.push( elem );
                                    return results;
                                }
                            } else {
                                return results;
                            }
    
                        // Element context
                        } else {
    
                            // Support: IE, Opera, Webkit
                            // TODO: identify versions
                            // getElementById can match elements by name instead of ID
                            if ( newContext && (elem = newContext.getElementById( m )) &&
                                contains( context, elem ) &&
                                elem.id === m ) {
    
                                results.push( elem );
                                return results;
                            }
                        }
    
                    // Type selector
                    } else if ( match[2] ) {
                        push.apply( results, context.getElementsByTagName( selector ) );
                        return results;
    
                    // Class selector
                    } else if ( (m = match[3]) && support.getElementsByClassName &&
                        context.getElementsByClassName ) {
    
                        push.apply( results, context.getElementsByClassName( m ) );
                        return results;
                    }
                }
    
                // Take advantage of querySelectorAll
                if ( support.qsa &&
                    !nonnativeSelectorCache[ selector + " " ] &&
                    (!rbuggyQSA || !rbuggyQSA.test( selector )) &&
    
                    // Support: IE 8 only
                    // Exclude object elements
                    (nodeType !== 1 || context.nodeName.toLowerCase() !== "object") ) {
    
                    newSelector = selector;
                    newContext = context;
    
                    // qSA considers elements outside a scoping root when evaluating child or
                    // descendant combinators, which is not what we want.
                    // In such cases, we work around the behavior by prefixing every selector in the
                    // list with an ID selector referencing the scope context.
                    // Thanks to Andrew Dupont for this technique.
                    if ( nodeType === 1 && rdescend.test( selector ) ) {
    
                        // Capture the context ID, setting it first if necessary
                        if ( (nid = context.getAttribute( "id" )) ) {
                            nid = nid.replace( rcssescape, fcssescape );
                        } else {
                            context.setAttribute( "id", (nid = expando) );
                        }
    
                        // Prefix every selector in the list
                        groups = tokenize( selector );
                        i = groups.length;
                        while ( i-- ) {
                            groups[i] = "#" + nid + " " + toSelector( groups[i] );
                        }
                        newSelector = groups.join( "," );
    
                        // Expand context for sibling selectors
                        newContext = rsibling.test( selector ) && testContext( context.parentNode ) ||
                            context;
                    }
    
                    try {
                        push.apply( results,
                            newContext.querySelectorAll( newSelector )
                        );
                        return results;
                    } catch ( qsaError ) {
                        nonnativeSelectorCache( selector, true );
                    } finally {
                        if ( nid === expando ) {
                            context.removeAttribute( "id" );
                        }
                    }
                }
            }
        }
    
        // All others
        return select( selector.replace( rtrim, "$1" ), context, results, seed );
    }
    
    /**
     * Create key-value caches of limited size
     * @returns {function(string, object)} Returns the Object data after storing it on itself with
     *	property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength)
     *	deleting the oldest entry
     */
    function createCache() {
        var keys = [];
    
        function cache( key, value ) {
            // Use (key + " ") to avoid collision with native prototype properties (see Issue #157)
            if ( keys.push( key + " " ) > Expr.cacheLength ) {
                // Only keep the most recent entries
                delete cache[ keys.shift() ];
            }
            return (cache[ key + " " ] = value);
        }
        return cache;
    }
    
    /**
     * Mark a function for special use by Sizzle
     * @param {Function} fn The function to mark
     */
    function markFunction( fn ) {
        fn[ expando ] = true;
        return fn;
    }
    
    /**
     * Support testing using an element
     * @param {Function} fn Passed the created element and returns a boolean result
     */
    function assert( fn ) {
        var el = document.createElement("fieldset");
    
        try {
            return !!fn( el );
        } catch (e) {
            return false;
        } finally {
            // Remove from its parent by default
            if ( el.parentNode ) {
                el.parentNode.removeChild( el );
            }
            // release memory in IE
            el = null;
        }
    }
    
    /**
     * Adds the same handler for all of the specified attrs
     * @param {String} attrs Pipe-separated list of attributes
     * @param {Function} handler The method that will be applied
     */
    function addHandle( attrs, handler ) {
        var arr = attrs.split("|"),
            i = arr.length;
    
        while ( i-- ) {
            Expr.attrHandle[ arr[i] ] = handler;
        }
    }
    
    /**
     * Checks document order of two siblings
     * @param {Element} a
     * @param {Element} b
     * @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b
     */
    function siblingCheck( a, b ) {
        var cur = b && a,
            diff = cur && a.nodeType === 1 && b.nodeType === 1 &&
                a.sourceIndex - b.sourceIndex;
    
        // Use IE sourceIndex if available on both nodes
        if ( diff ) {
            return diff;
        }
    
        // Check if b follows a
        if ( cur ) {
            while ( (cur = cur.nextSibling) ) {
                if ( cur === b ) {
                    return -1;
                }
            }
        }
    
        return a ? 1 : -1;
    }
    
    /**
     * Returns a function to use in pseudos for input types
     * @param {String} type
     */
    function createInputPseudo( type ) {
        return function( elem ) {
            var name = elem.nodeName.toLowerCase();
            return name === "input" && elem.type === type;
        };
    }
    
    /**
     * Returns a function to use in pseudos for buttons
     * @param {String} type
     */
    function createButtonPseudo( type ) {
        return function( elem ) {
            var name = elem.nodeName.toLowerCase();
            return (name === "input" || name === "button") && elem.type === type;
        };
    }
    
    /**
     * Returns a function to use in pseudos for :enabled/:disabled
     * @param {Boolean} disabled true for :disabled; false for :enabled
     */
    function createDisabledPseudo( disabled ) {
    
        // Known :disabled false positives: fieldset[disabled] > legend:nth-of-type(n+2) :can-disable
        return function( elem ) {
    
            // Only certain elements can match :enabled or :disabled
            // https://html.spec.whatwg.org/multipage/scripting.html#selector-enabled
            // https://html.spec.whatwg.org/multipage/scripting.html#selector-disabled
            if ( "form" in elem ) {
    
                // Check for inherited disabledness on relevant non-disabled elements:
                // * listed form-associated elements in a disabled fieldset
                //   https://html.spec.whatwg.org/multipage/forms.html#category-listed
                //   https://html.spec.whatwg.org/multipage/forms.html#concept-fe-disabled
                // * option elements in a disabled optgroup
                //   https://html.spec.whatwg.org/multipage/forms.html#concept-option-disabled
                // All such elements have a "form" property.
                if ( elem.parentNode && elem.disabled === false ) {
    
                    // Option elements defer to a parent optgroup if present
                    if ( "label" in elem ) {
                        if ( "label" in elem.parentNode ) {
                            return elem.parentNode.disabled === disabled;
                        } else {
                            return elem.disabled === disabled;
                        }
                    }
    
                    // Support: IE 6 - 11
                    // Use the isDisabled shortcut property to check for disabled fieldset ancestors
                    return elem.isDisabled === disabled ||
    
                        // Where there is no isDisabled, check manually
                        /* jshint -W018 */
                        elem.isDisabled !== !disabled &&
                            inDisabledFieldset( elem ) === disabled;
                }
    
                return elem.disabled === disabled;
    
            // Try to winnow out elements that can't be disabled before trusting the disabled property.
            // Some victims get caught in our net (label, legend, menu, track), but it shouldn't
            // even exist on them, let alone have a boolean value.
            } else if ( "label" in elem ) {
                return elem.disabled === disabled;
            }
    
            // Remaining elements are neither :enabled nor :disabled
            return false;
        };
    }
    
    /**
     * Returns a function to use in pseudos for positionals
     * @param {Function} fn
     */
    function createPositionalPseudo( fn ) {
        return markFunction(function( argument ) {
            argument = +argument;
            return markFunction(function( seed, matches ) {
                var j,
                    matchIndexes = fn( [], seed.length, argument ),
                    i = matchIndexes.length;
    
                // Match elements found at the specified indexes
                while ( i-- ) {
                    if ( seed[ (j = matchIndexes[i]) ] ) {
                        seed[j] = !(matches[j] = seed[j]);
                    }
                }
            });
        });
    }
    
    /**
     * Checks a node for validity as a Sizzle context
     * @param {Element|Object=} context
     * @returns {Element|Object|Boolean} The input node if acceptable, otherwise a falsy value
     */
    function testContext( context ) {
        return context && typeof context.getElementsByTagName !== "undefined" && context;
    }
    
    // Expose support vars for convenience
    support = Sizzle.support = {};
    
    /**
     * Detects XML nodes
     * @param {Element|Object} elem An element or a document
     * @returns {Boolean} True iff elem is a non-HTML XML node
     */
    isXML = Sizzle.isXML = function( elem ) {
        var namespace = elem.namespaceURI,
            docElem = (elem.ownerDocument || elem).documentElement;
    
        // Support: IE <=8
        // Assume HTML when documentElement doesn't yet exist, such as inside loading iframes
        // https://bugs.jquery.com/ticket/4833
        return !rhtml.test( namespace || docElem && docElem.nodeName || "HTML" );
    };
    
    /**
     * Sets document-related variables once based on the current document
     * @param {Element|Object} [doc] An element or document object to use to set the document
     * @returns {Object} Returns the current document
     */
    setDocument = Sizzle.setDocument = function( node ) {
        var hasCompare, subWindow,
            doc = node ? node.ownerDocument || node : preferredDoc;
    
        // Return early if doc is invalid or already selected
        if ( doc === document || doc.nodeType !== 9 || !doc.documentElement ) {
            return document;
        }
    
        // Update global variables
        document = doc;
        docElem = document.documentElement;
        documentIsHTML = !isXML( document );
    
        // Support: IE 9-11, Edge
        // Accessing iframe documents after unload throws "permission denied" errors (jQuery #13936)
        if ( preferredDoc !== document &&
            (subWindow = document.defaultView) && subWindow.top !== subWindow ) {
    
            // Support: IE 11, Edge
            if ( subWindow.addEventListener ) {
                subWindow.addEventListener( "unload", unloadHandler, false );
    
            // Support: IE 9 - 10 only
            } else if ( subWindow.attachEvent ) {
                subWindow.attachEvent( "onunload", unloadHandler );
            }
        }
    
        /* Attributes
        ---------------------------------------------------------------------- */
    
        // Support: IE<8
        // Verify that getAttribute really returns attributes and not properties
        // (excepting IE8 booleans)
        support.attributes = assert(function( el ) {
            el.className = "i";
            return !el.getAttribute("className");
        });
    
        /* getElement(s)By*
        ---------------------------------------------------------------------- */
    
        // Check if getElementsByTagName("*") returns only elements
        support.getElementsByTagName = assert(function( el ) {
            el.appendChild( document.createComment("") );
            return !el.getElementsByTagName("*").length;
        });
    
        // Support: IE<9
        support.getElementsByClassName = rnative.test( document.getElementsByClassName );
    
        // Support: IE<10
        // Check if getElementById returns elements by name
        // The broken getElementById methods don't pick up programmatically-set names,
        // so use a roundabout getElementsByName test
        support.getById = assert(function( el ) {
            docElem.appendChild( el ).id = expando;
            return !document.getElementsByName || !document.getElementsByName( expando ).length;
        });
    
        // ID filter and find
        if ( support.getById ) {
            Expr.filter["ID"] = function( id ) {
                var attrId = id.replace( runescape, funescape );
                return function( elem ) {
                    return elem.getAttribute("id") === attrId;
                };
            };
            Expr.find["ID"] = function( id, context ) {
                if ( typeof context.getElementById !== "undefined" && documentIsHTML ) {
                    var elem = context.getElementById( id );
                    return elem ? [ elem ] : [];
                }
            };
        } else {
            Expr.filter["ID"] =  function( id ) {
                var attrId = id.replace( runescape, funescape );
                return function( elem ) {
                    var node = typeof elem.getAttributeNode !== "undefined" &&
                        elem.getAttributeNode("id");
                    return node && node.value === attrId;
                };
            };
    
            // Support: IE 6 - 7 only
            // getElementById is not reliable as a find shortcut
            Expr.find["ID"] = function( id, context ) {
                if ( typeof context.getElementById !== "undefined" && documentIsHTML ) {
                    var node, i, elems,
                        elem = context.getElementById( id );
    
                    if ( elem ) {
    
                        // Verify the id attribute
                        node = elem.getAttributeNode("id");
                        if ( node && node.value === id ) {
                            return [ elem ];
                        }
    
                        // Fall back on getElementsByName
                        elems = context.getElementsByName( id );
                        i = 0;
                        while ( (elem = elems[i++]) ) {
                            node = elem.getAttributeNode("id");
                            if ( node && node.value === id ) {
                                return [ elem ];
                            }
                        }
                    }
    
                    return [];
                }
            };
        }
    
        // Tag
        Expr.find["TAG"] = support.getElementsByTagName ?
            function( tag, context ) {
                if ( typeof context.getElementsByTagName !== "undefined" ) {
                    return context.getElementsByTagName( tag );
    
                // DocumentFragment nodes don't have gEBTN
                } else if ( support.qsa ) {
                    return context.querySelectorAll( tag );
                }
            } :
    
            function( tag, context ) {
                var elem,
                    tmp = [],
                    i = 0,
                    // By happy coincidence, a (broken) gEBTN appears on DocumentFragment nodes too
                    results = context.getElementsByTagName( tag );
    
                // Filter out possible comments
                if ( tag === "*" ) {
                    while ( (elem = results[i++]) ) {
                        if ( elem.nodeType === 1 ) {
                            tmp.push( elem );
                        }
                    }
    
                    return tmp;
                }
                return results;
            };
    
        // Class
        Expr.find["CLASS"] = support.getElementsByClassName && function( className, context ) {
            if ( typeof context.getElementsByClassName !== "undefined" && documentIsHTML ) {
                return context.getElementsByClassName( className );
            }
        };
    
        /* QSA/matchesSelector
        ---------------------------------------------------------------------- */
    
        // QSA and matchesSelector support
    
        // matchesSelector(:active) reports false when true (IE9/Opera 11.5)
        rbuggyMatches = [];
    
        // qSa(:focus) reports false when true (Chrome 21)
        // We allow this because of a bug in IE8/9 that throws an error
        // whenever `document.activeElement` is accessed on an iframe
        // So, we allow :focus to pass through QSA all the time to avoid the IE error
        // See https://bugs.jquery.com/ticket/13378
        rbuggyQSA = [];
    
        if ( (support.qsa = rnative.test( document.querySelectorAll )) ) {
            // Build QSA regex
            // Regex strategy adopted from Diego Perini
            assert(function( el ) {
                // Select is set to empty string on purpose
                // This is to test IE's treatment of not explicitly
                // setting a boolean content attribute,
                // since its presence should be enough
                // https://bugs.jquery.com/ticket/12359
                docElem.appendChild( el ).innerHTML = "<a id='" + expando + "'></a>" +
                    "<select id='" + expando + "-\r\\' msallowcapture=''>" +
                    "<option selected=''></option></select>";
    
                // Support: IE8, Opera 11-12.16
                // Nothing should be selected when empty strings follow ^= or $= or *=
                // The test attribute must be unknown in Opera but "safe" for WinRT
                // https://msdn.microsoft.com/en-us/library/ie/hh465388.aspx#attribute_section
                if ( el.querySelectorAll("[msallowcapture^='']").length ) {
                    rbuggyQSA.push( "[*^$]=" + whitespace + "*(?:''|\"\")" );
                }
    
                // Support: IE8
                // Boolean attributes and "value" are not treated correctly
                if ( !el.querySelectorAll("[selected]").length ) {
                    rbuggyQSA.push( "\\[" + whitespace + "*(?:value|" + booleans + ")" );
                }
    
                // Support: Chrome<29, Android<4.4, Safari<7.0+, iOS<7.0+, PhantomJS<1.9.8+
                if ( !el.querySelectorAll( "[id~=" + expando + "-]" ).length ) {
                    rbuggyQSA.push("~=");
                }
    
                // Webkit/Opera - :checked should return selected option elements
                // http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
                // IE8 throws error here and will not see later tests
                if ( !el.querySelectorAll(":checked").length ) {
                    rbuggyQSA.push(":checked");
                }
    
                // Support: Safari 8+, iOS 8+
                // https://bugs.webkit.org/show_bug.cgi?id=136851
                // In-page `selector#id sibling-combinator selector` fails
                if ( !el.querySelectorAll( "a#" + expando + "+*" ).length ) {
                    rbuggyQSA.push(".#.+[+~]");
                }
            });
    
            assert(function( el ) {
                el.innerHTML = "<a href='' disabled='disabled'></a>" +
                    "<select disabled='disabled'><option/></select>";
    
                // Support: Windows 8 Native Apps
                // The type and name attributes are restricted during .innerHTML assignment
                var input = document.createElement("input");
                input.setAttribute( "type", "hidden" );
                el.appendChild( input ).setAttribute( "name", "D" );
    
                // Support: IE8
                // Enforce case-sensitivity of name attribute
                if ( el.querySelectorAll("[name=d]").length ) {
                    rbuggyQSA.push( "name" + whitespace + "*[*^$|!~]?=" );
                }
    
                // FF 3.5 - :enabled/:disabled and hidden elements (hidden elements are still enabled)
                // IE8 throws error here and will not see later tests
                if ( el.querySelectorAll(":enabled").length !== 2 ) {
                    rbuggyQSA.push( ":enabled", ":disabled" );
                }
    
                // Support: IE9-11+
                // IE's :disabled selector does not pick up the children of disabled fieldsets
                docElem.appendChild( el ).disabled = true;
                if ( el.querySelectorAll(":disabled").length !== 2 ) {
                    rbuggyQSA.push( ":enabled", ":disabled" );
                }
    
                // Opera 10-11 does not throw on post-comma invalid pseudos
                el.querySelectorAll("*,:x");
                rbuggyQSA.push(",.*:");
            });
        }
    
        if ( (support.matchesSelector = rnative.test( (matches = docElem.matches ||
            docElem.webkitMatchesSelector ||
            docElem.mozMatchesSelector ||
            docElem.oMatchesSelector ||
            docElem.msMatchesSelector) )) ) {
    
            assert(function( el ) {
                // Check to see if it's possible to do matchesSelector
                // on a disconnected node (IE 9)
                support.disconnectedMatch = matches.call( el, "*" );
    
                // This should fail with an exception
                // Gecko does not error, returns false instead
                matches.call( el, "[s!='']:x" );
                rbuggyMatches.push( "!=", pseudos );
            });
        }
    
        rbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join("|") );
        rbuggyMatches = rbuggyMatches.length && new RegExp( rbuggyMatches.join("|") );
    
        /* Contains
        ---------------------------------------------------------------------- */
        hasCompare = rnative.test( docElem.compareDocumentPosition );
    
        // Element contains another
        // Purposefully self-exclusive
        // As in, an element does not contain itself
        contains = hasCompare || rnative.test( docElem.contains ) ?
            function( a, b ) {
                var adown = a.nodeType === 9 ? a.documentElement : a,
                    bup = b && b.parentNode;
                return a === bup || !!( bup && bup.nodeType === 1 && (
                    adown.contains ?
                        adown.contains( bup ) :
                        a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16
                ));
            } :
            function( a, b ) {
                if ( b ) {
                    while ( (b = b.parentNode) ) {
                        if ( b === a ) {
                            return true;
                        }
                    }
                }
                return false;
            };
    
        /* Sorting
        ---------------------------------------------------------------------- */
    
        // Document order sorting
        sortOrder = hasCompare ?
        function( a, b ) {
    
            // Flag for duplicate removal
            if ( a === b ) {
                hasDuplicate = true;
                return 0;
            }
    
            // Sort on method existence if only one input has compareDocumentPosition
            var compare = !a.compareDocumentPosition - !b.compareDocumentPosition;
            if ( compare ) {
                return compare;
            }
    
            // Calculate position if both inputs belong to the same document
            compare = ( a.ownerDocument || a ) === ( b.ownerDocument || b ) ?
                a.compareDocumentPosition( b ) :
    
                // Otherwise we know they are disconnected
                1;
    
            // Disconnected nodes
            if ( compare & 1 ||
                (!support.sortDetached && b.compareDocumentPosition( a ) === compare) ) {
    
                // Choose the first element that is related to our preferred document
                if ( a === document || a.ownerDocument === preferredDoc && contains(preferredDoc, a) ) {
                    return -1;
                }
                if ( b === document || b.ownerDocument === preferredDoc && contains(preferredDoc, b) ) {
                    return 1;
                }
    
                // Maintain original order
                return sortInput ?
                    ( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
                    0;
            }
    
            return compare & 4 ? -1 : 1;
        } :
        function( a, b ) {
            // Exit early if the nodes are identical
            if ( a === b ) {
                hasDuplicate = true;
                return 0;
            }
    
            var cur,
                i = 0,
                aup = a.parentNode,
                bup = b.parentNode,
                ap = [ a ],
                bp = [ b ];
    
            // Parentless nodes are either documents or disconnected
            if ( !aup || !bup ) {
                return a === document ? -1 :
                    b === document ? 1 :
                    aup ? -1 :
                    bup ? 1 :
                    sortInput ?
                    ( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
                    0;
    
            // If the nodes are siblings, we can do a quick check
            } else if ( aup === bup ) {
                return siblingCheck( a, b );
            }
    
            // Otherwise we need full lists of their ancestors for comparison
            cur = a;
            while ( (cur = cur.parentNode) ) {
                ap.unshift( cur );
            }
            cur = b;
            while ( (cur = cur.parentNode) ) {
                bp.unshift( cur );
            }
    
            // Walk down the tree looking for a discrepancy
            while ( ap[i] === bp[i] ) {
                i++;
            }
    
            return i ?
                // Do a sibling check if the nodes have a common ancestor
                siblingCheck( ap[i], bp[i] ) :
    
                // Otherwise nodes in our document sort first
                ap[i] === preferredDoc ? -1 :
                bp[i] === preferredDoc ? 1 :
                0;
        };
    
        return document;
    };
    
    Sizzle.matches = function( expr, elements ) {
        return Sizzle( expr, null, null, elements );
    };
    
    Sizzle.matchesSelector = function( elem, expr ) {
        // Set document vars if needed
        if ( ( elem.ownerDocument || elem ) !== document ) {
            setDocument( elem );
        }
    
        if ( support.matchesSelector && documentIsHTML &&
            !nonnativeSelectorCache[ expr + " " ] &&
            ( !rbuggyMatches || !rbuggyMatches.test( expr ) ) &&
            ( !rbuggyQSA     || !rbuggyQSA.test( expr ) ) ) {
    
            try {
                var ret = matches.call( elem, expr );
    
                // IE 9's matchesSelector returns false on disconnected nodes
                if ( ret || support.disconnectedMatch ||
                        // As well, disconnected nodes are said to be in a document
                        // fragment in IE 9
                        elem.document && elem.document.nodeType !== 11 ) {
                    return ret;
                }
            } catch (e) {
                nonnativeSelectorCache( expr, true );
            }
        }
    
        return Sizzle( expr, document, null, [ elem ] ).length > 0;
    };
    
    Sizzle.contains = function( context, elem ) {
        // Set document vars if needed
        if ( ( context.ownerDocument || context ) !== document ) {
            setDocument( context );
        }
        return contains( context, elem );
    };
    
    Sizzle.attr = function( elem, name ) {
        // Set document vars if needed
        if ( ( elem.ownerDocument || elem ) !== document ) {
            setDocument( elem );
        }
    
        var fn = Expr.attrHandle[ name.toLowerCase() ],
            // Don't get fooled by Object.prototype properties (jQuery #13807)
            val = fn && hasOwn.call( Expr.attrHandle, name.toLowerCase() ) ?
                fn( elem, name, !documentIsHTML ) :
                undefined;
    
        return val !== undefined ?
            val :
            support.attributes || !documentIsHTML ?
                elem.getAttribute( name ) :
                (val = elem.getAttributeNode(name)) && val.specified ?
                    val.value :
                    null;
    };
    
    Sizzle.escape = function( sel ) {
        return (sel + "").replace( rcssescape, fcssescape );
    };
    
    Sizzle.error = function( msg ) {
        throw new Error( "Syntax error, unrecognized expression: " + msg );
    };
    
    /**
     * Document sorting and removing duplicates
     * @param {ArrayLike} results
     */
    Sizzle.uniqueSort = function( results ) {
        var elem,
            duplicates = [],
            j = 0,
            i = 0;
    
        // Unless we *know* we can detect duplicates, assume their presence
        hasDuplicate = !support.detectDuplicates;
        sortInput = !support.sortStable && results.slice( 0 );
        results.sort( sortOrder );
    
        if ( hasDuplicate ) {
            while ( (elem = results[i++]) ) {
                if ( elem === results[ i ] ) {
                    j = duplicates.push( i );
                }
            }
            while ( j-- ) {
                results.splice( duplicates[ j ], 1 );
            }
        }
    
        // Clear input after sorting to release objects
        // See https://github.com/jquery/sizzle/pull/225
        sortInput = null;
    
        return results;
    };
    
    /**
     * Utility function for retrieving the text value of an array of DOM nodes
     * @param {Array|Element} elem
     */
    getText = Sizzle.getText = function( elem ) {
        var node,
            ret = "",
            i = 0,
            nodeType = elem.nodeType;
    
        if ( !nodeType ) {
            // If no nodeType, this is expected to be an array
            while ( (node = elem[i++]) ) {
                // Do not traverse comment nodes
                ret += getText( node );
            }
        } else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) {
            // Use textContent for elements
            // innerText usage removed for consistency of new lines (jQuery #11153)
            if ( typeof elem.textContent === "string" ) {
                return elem.textContent;
            } else {
                // Traverse its children
                for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
                    ret += getText( elem );
                }
            }
        } else if ( nodeType === 3 || nodeType === 4 ) {
            return elem.nodeValue;
        }
        // Do not include comment or processing instruction nodes
    
        return ret;
    };
    
    Expr = Sizzle.selectors = {
    
        // Can be adjusted by the user
        cacheLength: 50,
    
        createPseudo: markFunction,
    
        match: matchExpr,
    
        attrHandle: {},
    
        find: {},
    
        relative: {
            ">": { dir: "parentNode", first: true },
            " ": { dir: "parentNode" },
            "+": { dir: "previousSibling", first: true },
            "~": { dir: "previousSibling" }
        },
    
        preFilter: {
            "ATTR": function( match ) {
                match[1] = match[1].replace( runescape, funescape );
    
                // Move the given value to match[3] whether quoted or unquoted
                match[3] = ( match[3] || match[4] || match[5] || "" ).replace( runescape, funescape );
    
                if ( match[2] === "~=" ) {
                    match[3] = " " + match[3] + " ";
                }
    
                return match.slice( 0, 4 );
            },
    
            "CHILD": function( match ) {
                /* matches from matchExpr["CHILD"]
                    1 type (only|nth|...)
                    2 what (child|of-type)
                    3 argument (even|odd|\d*|\d*n([+-]\d+)?|...)
                    4 xn-component of xn+y argument ([+-]?\d*n|)
                    5 sign of xn-component
                    6 x of xn-component
                    7 sign of y-component
                    8 y of y-component
                */
                match[1] = match[1].toLowerCase();
    
                if ( match[1].slice( 0, 3 ) === "nth" ) {
                    // nth-* requires argument
                    if ( !match[3] ) {
                        Sizzle.error( match[0] );
                    }
    
                    // numeric x and y parameters for Expr.filter.CHILD
                    // remember that false/true cast respectively to 0/1
                    match[4] = +( match[4] ? match[5] + (match[6] || 1) : 2 * ( match[3] === "even" || match[3] === "odd" ) );
                    match[5] = +( ( match[7] + match[8] ) || match[3] === "odd" );
    
                // other types prohibit arguments
                } else if ( match[3] ) {
                    Sizzle.error( match[0] );
                }
    
                return match;
            },
    
            "PSEUDO": function( match ) {
                var excess,
                    unquoted = !match[6] && match[2];
    
                if ( matchExpr["CHILD"].test( match[0] ) ) {
                    return null;
                }
    
                // Accept quoted arguments as-is
                if ( match[3] ) {
                    match[2] = match[4] || match[5] || "";
    
                // Strip excess characters from unquoted arguments
                } else if ( unquoted && rpseudo.test( unquoted ) &&
                    // Get excess from tokenize (recursively)
                    (excess = tokenize( unquoted, true )) &&
                    // advance to the next closing parenthesis
                    (excess = unquoted.indexOf( ")", unquoted.length - excess ) - unquoted.length) ) {
    
                    // excess is a negative index
                    match[0] = match[0].slice( 0, excess );
                    match[2] = unquoted.slice( 0, excess );
                }
    
                // Return only captures needed by the pseudo filter method (type and argument)
                return match.slice( 0, 3 );
            }
        },
    
        filter: {
    
            "TAG": function( nodeNameSelector ) {
                var nodeName = nodeNameSelector.replace( runescape, funescape ).toLowerCase();
                return nodeNameSelector === "*" ?
                    function() { return true; } :
                    function( elem ) {
                        return elem.nodeName && elem.nodeName.toLowerCase() === nodeName;
                    };
            },
    
            "CLASS": function( className ) {
                var pattern = classCache[ className + " " ];
    
                return pattern ||
                    (pattern = new RegExp( "(^|" + whitespace + ")" + className + "(" + whitespace + "|$)" )) &&
                    classCache( className, function( elem ) {
                        return pattern.test( typeof elem.className === "string" && elem.className || typeof elem.getAttribute !== "undefined" && elem.getAttribute("class") || "" );
                    });
            },
    
            "ATTR": function( name, operator, check ) {
                return function( elem ) {
                    var result = Sizzle.attr( elem, name );
    
                    if ( result == null ) {
                        return operator === "!=";
                    }
                    if ( !operator ) {
                        return true;
                    }
    
                    result += "";
    
                    return operator === "=" ? result === check :
                        operator === "!=" ? result !== check :
                        operator === "^=" ? check && result.indexOf( check ) === 0 :
                        operator === "*=" ? check && result.indexOf( check ) > -1 :
                        operator === "$=" ? check && result.slice( -check.length ) === check :
                        operator === "~=" ? ( " " + result.replace( rwhitespace, " " ) + " " ).indexOf( check ) > -1 :
                        operator === "|=" ? result === check || result.slice( 0, check.length + 1 ) === check + "-" :
                        false;
                };
            },
    
            "CHILD": function( type, what, argument, first, last ) {
                var simple = type.slice( 0, 3 ) !== "nth",
                    forward = type.slice( -4 ) !== "last",
                    ofType = what === "of-type";
    
                return first === 1 && last === 0 ?
    
                    // Shortcut for :nth-*(n)
                    function( elem ) {
                        return !!elem.parentNode;
                    } :
    
                    function( elem, context, xml ) {
                        var cache, uniqueCache, outerCache, node, nodeIndex, start,
                            dir = simple !== forward ? "nextSibling" : "previousSibling",
                            parent = elem.parentNode,
                            name = ofType && elem.nodeName.toLowerCase(),
                            useCache = !xml && !ofType,
                            diff = false;
    
                        if ( parent ) {
    
                            // :(first|last|only)-(child|of-type)
                            if ( simple ) {
                                while ( dir ) {
                                    node = elem;
                                    while ( (node = node[ dir ]) ) {
                                        if ( ofType ?
                                            node.nodeName.toLowerCase() === name :
                                            node.nodeType === 1 ) {
    
                                            return false;
                                        }
                                    }
                                    // Reverse direction for :only-* (if we haven't yet done so)
                                    start = dir = type === "only" && !start && "nextSibling";
                                }
                                return true;
                            }
    
                            start = [ forward ? parent.firstChild : parent.lastChild ];
    
                            // non-xml :nth-child(...) stores cache data on `parent`
                            if ( forward && useCache ) {
    
                                // Seek `elem` from a previously-cached index
    
                                // ...in a gzip-friendly way
                                node = parent;
                                outerCache = node[ expando ] || (node[ expando ] = {});
    
                                // Support: IE <9 only
                                // Defend against cloned attroperties (jQuery gh-1709)
                                uniqueCache = outerCache[ node.uniqueID ] ||
                                    (outerCache[ node.uniqueID ] = {});
    
                                cache = uniqueCache[ type ] || [];
                                nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];
                                diff = nodeIndex && cache[ 2 ];
                                node = nodeIndex && parent.childNodes[ nodeIndex ];
    
                                while ( (node = ++nodeIndex && node && node[ dir ] ||
    
                                    // Fallback to seeking `elem` from the start
                                    (diff = nodeIndex = 0) || start.pop()) ) {
    
                                    // When found, cache indexes on `parent` and break
                                    if ( node.nodeType === 1 && ++diff && node === elem ) {
                                        uniqueCache[ type ] = [ dirruns, nodeIndex, diff ];
                                        break;
                                    }
                                }
    
                            } else {
                                // Use previously-cached element index if available
                                if ( useCache ) {
                                    // ...in a gzip-friendly way
                                    node = elem;
                                    outerCache = node[ expando ] || (node[ expando ] = {});
    
                                    // Support: IE <9 only
                                    // Defend against cloned attroperties (jQuery gh-1709)
                                    uniqueCache = outerCache[ node.uniqueID ] ||
                                        (outerCache[ node.uniqueID ] = {});
    
                                    cache = uniqueCache[ type ] || [];
                                    nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];
                                    diff = nodeIndex;
                                }
    
                                // xml :nth-child(...)
                                // or :nth-last-child(...) or :nth(-last)?-of-type(...)
                                if ( diff === false ) {
                                    // Use the same loop as above to seek `elem` from the start
                                    while ( (node = ++nodeIndex && node && node[ dir ] ||
                                        (diff = nodeIndex = 0) || start.pop()) ) {
    
                                        if ( ( ofType ?
                                            node.nodeName.toLowerCase() === name :
                                            node.nodeType === 1 ) &&
                                            ++diff ) {
    
                                            // Cache the index of each encountered element
                                            if ( useCache ) {
                                                outerCache = node[ expando ] || (node[ expando ] = {});
    
                                                // Support: IE <9 only
                                                // Defend against cloned attroperties (jQuery gh-1709)
                                                uniqueCache = outerCache[ node.uniqueID ] ||
                                                    (outerCache[ node.uniqueID ] = {});
    
                                                uniqueCache[ type ] = [ dirruns, diff ];
                                            }
    
                                            if ( node === elem ) {
                                                break;
                                            }
                                        }
                                    }
                                }
                            }
    
                            // Incorporate the offset, then check against cycle size
                            diff -= last;
                            return diff === first || ( diff % first === 0 && diff / first >= 0 );
                        }
                    };
            },
    
            "PSEUDO": function( pseudo, argument ) {
                // pseudo-class names are case-insensitive
                // http://www.w3.org/TR/selectors/#pseudo-classes
                // Prioritize by case sensitivity in case custom pseudos are added with uppercase letters
                // Remember that setFilters inherits from pseudos
                var args,
                    fn = Expr.pseudos[ pseudo ] || Expr.setFilters[ pseudo.toLowerCase() ] ||
                        Sizzle.error( "unsupported pseudo: " + pseudo );
    
                // The user may use createPseudo to indicate that
                // arguments are needed to create the filter function
                // just as Sizzle does
                if ( fn[ expando ] ) {
                    return fn( argument );
                }
    
                // But maintain support for old signatures
                if ( fn.length > 1 ) {
                    args = [ pseudo, pseudo, "", argument ];
                    return Expr.setFilters.hasOwnProperty( pseudo.toLowerCase() ) ?
                        markFunction(function( seed, matches ) {
                            var idx,
                                matched = fn( seed, argument ),
                                i = matched.length;
                            while ( i-- ) {
                                idx = indexOf( seed, matched[i] );
                                seed[ idx ] = !( matches[ idx ] = matched[i] );
                            }
                        }) :
                        function( elem ) {
                            return fn( elem, 0, args );
                        };
                }
    
                return fn;
            }
        },
    
        pseudos: {
            // Potentially complex pseudos
            "not": markFunction(function( selector ) {
                // Trim the selector passed to compile
                // to avoid treating leading and trailing
                // spaces as combinators
                var input = [],
                    results = [],
                    matcher = compile( selector.replace( rtrim, "$1" ) );
    
                return matcher[ expando ] ?
                    markFunction(function( seed, matches, context, xml ) {
                        var elem,
                            unmatched = matcher( seed, null, xml, [] ),
                            i = seed.length;
    
                        // Match elements unmatched by `matcher`
                        while ( i-- ) {
                            if ( (elem = unmatched[i]) ) {
                                seed[i] = !(matches[i] = elem);
                            }
                        }
                    }) :
                    function( elem, context, xml ) {
                        input[0] = elem;
                        matcher( input, null, xml, results );
                        // Don't keep the element (issue #299)
                        input[0] = null;
                        return !results.pop();
                    };
            }),
    
            "has": markFunction(function( selector ) {
                return function( elem ) {
                    return Sizzle( selector, elem ).length > 0;
                };
            }),
    
            "contains": markFunction(function( text ) {
                text = text.replace( runescape, funescape );
                return function( elem ) {
                    return ( elem.textContent || getText( elem ) ).indexOf( text ) > -1;
                };
            }),
    
            // "Whether an element is represented by a :lang() selector
            // is based solely on the element's language value
            // being equal to the identifier C,
            // or beginning with the identifier C immediately followed by "-".
            // The matching of C against the element's language value is performed case-insensitively.
            // The identifier C does not have to be a valid language name."
            // http://www.w3.org/TR/selectors/#lang-pseudo
            "lang": markFunction( function( lang ) {
                // lang value must be a valid identifier
                if ( !ridentifier.test(lang || "") ) {
                    Sizzle.error( "unsupported lang: " + lang );
                }
                lang = lang.replace( runescape, funescape ).toLowerCase();
                return function( elem ) {
                    var elemLang;
                    do {
                        if ( (elemLang = documentIsHTML ?
                            elem.lang :
                            elem.getAttribute("xml:lang") || elem.getAttribute("lang")) ) {
    
                            elemLang = elemLang.toLowerCase();
                            return elemLang === lang || elemLang.indexOf( lang + "-" ) === 0;
                        }
                    } while ( (elem = elem.parentNode) && elem.nodeType === 1 );
                    return false;
                };
            }),
    
            // Miscellaneous
            "target": function( elem ) {
                var hash = window.location && window.location.hash;
                return hash && hash.slice( 1 ) === elem.id;
            },
    
            "root": function( elem ) {
                return elem === docElem;
            },
    
            "focus": function( elem ) {
                return elem === document.activeElement && (!document.hasFocus || document.hasFocus()) && !!(elem.type || elem.href || ~elem.tabIndex);
            },
    
            // Boolean properties
            "enabled": createDisabledPseudo( false ),
            "disabled": createDisabledPseudo( true ),
    
            "checked": function( elem ) {
                // In CSS3, :checked should return both checked and selected elements
                // http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
                var nodeName = elem.nodeName.toLowerCase();
                return (nodeName === "input" && !!elem.checked) || (nodeName === "option" && !!elem.selected);
            },
    
            "selected": function( elem ) {
                // Accessing this property makes selected-by-default
                // options in Safari work properly
                if ( elem.parentNode ) {
                    elem.parentNode.selectedIndex;
                }
    
                return elem.selected === true;
            },
    
            // Contents
            "empty": function( elem ) {
                // http://www.w3.org/TR/selectors/#empty-pseudo
                // :empty is negated by element (1) or content nodes (text: 3; cdata: 4; entity ref: 5),
                //   but not by others (comment: 8; processing instruction: 7; etc.)
                // nodeType < 6 works because attributes (2) do not appear as children
                for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
                    if ( elem.nodeType < 6 ) {
                        return false;
                    }
                }
                return true;
            },
    
            "parent": function( elem ) {
                return !Expr.pseudos["empty"]( elem );
            },
    
            // Element/input types
            "header": function( elem ) {
                return rheader.test( elem.nodeName );
            },
    
            "input": function( elem ) {
                return rinputs.test( elem.nodeName );
            },
    
            "button": function( elem ) {
                var name = elem.nodeName.toLowerCase();
                return name === "input" && elem.type === "button" || name === "button";
            },
    
            "text": function( elem ) {
                var attr;
                return elem.nodeName.toLowerCase() === "input" &&
                    elem.type === "text" &&
    
                    // Support: IE<8
                    // New HTML5 attribute values (e.g., "search") appear with elem.type === "text"
                    ( (attr = elem.getAttribute("type")) == null || attr.toLowerCase() === "text" );
            },
    
            // Position-in-collection
            "first": createPositionalPseudo(function() {
                return [ 0 ];
            }),
    
            "last": createPositionalPseudo(function( matchIndexes, length ) {
                return [ length - 1 ];
            }),
    
            "eq": createPositionalPseudo(function( matchIndexes, length, argument ) {
                return [ argument < 0 ? argument + length : argument ];
            }),
    
            "even": createPositionalPseudo(function( matchIndexes, length ) {
                var i = 0;
                for ( ; i < length; i += 2 ) {
                    matchIndexes.push( i );
                }
                return matchIndexes;
            }),
    
            "odd": createPositionalPseudo(function( matchIndexes, length ) {
                var i = 1;
                for ( ; i < length; i += 2 ) {
                    matchIndexes.push( i );
                }
                return matchIndexes;
            }),
    
            "lt": createPositionalPseudo(function( matchIndexes, length, argument ) {
                var i = argument < 0 ?
                    argument + length :
                    argument > length ?
                        length :
                        argument;
                for ( ; --i >= 0; ) {
                    matchIndexes.push( i );
                }
                return matchIndexes;
            }),
    
            "gt": createPositionalPseudo(function( matchIndexes, length, argument ) {
                var i = argument < 0 ? argument + length : argument;
                for ( ; ++i < length; ) {
                    matchIndexes.push( i );
                }
                return matchIndexes;
            })
        }
    };
    
    Expr.pseudos["nth"] = Expr.pseudos["eq"];
    
    // Add button/input type pseudos
    for ( i in { radio: true, checkbox: true, file: true, password: true, image: true } ) {
        Expr.pseudos[ i ] = createInputPseudo( i );
    }
    for ( i in { submit: true, reset: true } ) {
        Expr.pseudos[ i ] = createButtonPseudo( i );
    }
    
    // Easy API for creating new setFilters
    function setFilters() {}
    setFilters.prototype = Expr.filters = Expr.pseudos;
    Expr.setFilters = new setFilters();
    
    tokenize = Sizzle.tokenize = function( selector, parseOnly ) {
        var matched, match, tokens, type,
            soFar, groups, preFilters,
            cached = tokenCache[ selector + " " ];
    
        if ( cached ) {
            return parseOnly ? 0 : cached.slice( 0 );
        }
    
        soFar = selector;
        groups = [];
        preFilters = Expr.preFilter;
    
        while ( soFar ) {
    
            // Comma and first run
            if ( !matched || (match = rcomma.exec( soFar )) ) {
                if ( match ) {
                    // Don't consume trailing commas as valid
                    soFar = soFar.slice( match[0].length ) || soFar;
                }
                groups.push( (tokens = []) );
            }
    
            matched = false;
    
            // Combinators
            if ( (match = rcombinators.exec( soFar )) ) {
                matched = match.shift();
                tokens.push({
                    value: matched,
                    // Cast descendant combinators to space
                    type: match[0].replace( rtrim, " " )
                });
                soFar = soFar.slice( matched.length );
            }
    
            // Filters
            for ( type in Expr.filter ) {
                if ( (match = matchExpr[ type ].exec( soFar )) && (!preFilters[ type ] ||
                    (match = preFilters[ type ]( match ))) ) {
                    matched = match.shift();
                    tokens.push({
                        value: matched,
                        type: type,
                        matches: match
                    });
                    soFar = soFar.slice( matched.length );
                }
            }
    
            if ( !matched ) {
                break;
            }
        }
    
        // Return the length of the invalid excess
        // if we're just parsing
        // Otherwise, throw an error or return tokens
        return parseOnly ?
            soFar.length :
            soFar ?
                Sizzle.error( selector ) :
                // Cache the tokens
                tokenCache( selector, groups ).slice( 0 );
    };
    
    function toSelector( tokens ) {
        var i = 0,
            len = tokens.length,
            selector = "";
        for ( ; i < len; i++ ) {
            selector += tokens[i].value;
        }
        return selector;
    }
    
    function addCombinator( matcher, combinator, base ) {
        var dir = combinator.dir,
            skip = combinator.next,
            key = skip || dir,
            checkNonElements = base && key === "parentNode",
            doneName = done++;
    
        return combinator.first ?
            // Check against closest ancestor/preceding element
            function( elem, context, xml ) {
                while ( (elem = elem[ dir ]) ) {
                    if ( elem.nodeType === 1 || checkNonElements ) {
                        return matcher( elem, context, xml );
                    }
                }
                return false;
            } :
    
            // Check against all ancestor/preceding elements
            function( elem, context, xml ) {
                var oldCache, uniqueCache, outerCache,
                    newCache = [ dirruns, doneName ];
    
                // We can't set arbitrary data on XML nodes, so they don't benefit from combinator caching
                if ( xml ) {
                    while ( (elem = elem[ dir ]) ) {
                        if ( elem.nodeType === 1 || checkNonElements ) {
                            if ( matcher( elem, context, xml ) ) {
                                return true;
                            }
                        }
                    }
                } else {
                    while ( (elem = elem[ dir ]) ) {
                        if ( elem.nodeType === 1 || checkNonElements ) {
                            outerCache = elem[ expando ] || (elem[ expando ] = {});
    
                            // Support: IE <9 only
                            // Defend against cloned attroperties (jQuery gh-1709)
                            uniqueCache = outerCache[ elem.uniqueID ] || (outerCache[ elem.uniqueID ] = {});
    
                            if ( skip && skip === elem.nodeName.toLowerCase() ) {
                                elem = elem[ dir ] || elem;
                            } else if ( (oldCache = uniqueCache[ key ]) &&
                                oldCache[ 0 ] === dirruns && oldCache[ 1 ] === doneName ) {
    
                                // Assign to newCache so results back-propagate to previous elements
                                return (newCache[ 2 ] = oldCache[ 2 ]);
                            } else {
                                // Reuse newcache so results back-propagate to previous elements
                                uniqueCache[ key ] = newCache;
    
                                // A match means we're done; a fail means we have to keep checking
                                if ( (newCache[ 2 ] = matcher( elem, context, xml )) ) {
                                    return true;
                                }
                            }
                        }
                    }
                }
                return false;
            };
    }
    
    function elementMatcher( matchers ) {
        return matchers.length > 1 ?
            function( elem, context, xml ) {
                var i = matchers.length;
                while ( i-- ) {
                    if ( !matchers[i]( elem, context, xml ) ) {
                        return false;
                    }
                }
                return true;
            } :
            matchers[0];
    }
    
    function multipleContexts( selector, contexts, results ) {
        var i = 0,
            len = contexts.length;
        for ( ; i < len; i++ ) {
            Sizzle( selector, contexts[i], results );
        }
        return results;
    }
    
    function condense( unmatched, map, filter, context, xml ) {
        var elem,
            newUnmatched = [],
            i = 0,
            len = unmatched.length,
            mapped = map != null;
    
        for ( ; i < len; i++ ) {
            if ( (elem = unmatched[i]) ) {
                if ( !filter || filter( elem, context, xml ) ) {
                    newUnmatched.push( elem );
                    if ( mapped ) {
                        map.push( i );
                    }
                }
            }
        }
    
        return newUnmatched;
    }
    
    function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postSelector ) {
        if ( postFilter && !postFilter[ expando ] ) {
            postFilter = setMatcher( postFilter );
        }
        if ( postFinder && !postFinder[ expando ] ) {
            postFinder = setMatcher( postFinder, postSelector );
        }
        return markFunction(function( seed, results, context, xml ) {
            var temp, i, elem,
                preMap = [],
                postMap = [],
                preexisting = results.length,
    
                // Get initial elements from seed or context
                elems = seed || multipleContexts( selector || "*", context.nodeType ? [ context ] : context, [] ),
    
                // Prefilter to get matcher input, preserving a map for seed-results synchronization
                matcherIn = preFilter && ( seed || !selector ) ?
                    condense( elems, preMap, preFilter, context, xml ) :
                    elems,
    
                matcherOut = matcher ?
                    // If we have a postFinder, or filtered seed, or non-seed postFilter or preexisting results,
                    postFinder || ( seed ? preFilter : preexisting || postFilter ) ?
    
                        // ...intermediate processing is necessary
                        [] :
    
                        // ...otherwise use results directly
                        results :
                    matcherIn;
    
            // Find primary matches
            if ( matcher ) {
                matcher( matcherIn, matcherOut, context, xml );
            }
    
            // Apply postFilter
            if ( postFilter ) {
                temp = condense( matcherOut, postMap );
                postFilter( temp, [], context, xml );
    
                // Un-match failing elements by moving them back to matcherIn
                i = temp.length;
                while ( i-- ) {
                    if ( (elem = temp[i]) ) {
                        matcherOut[ postMap[i] ] = !(matcherIn[ postMap[i] ] = elem);
                    }
                }
            }
    
            if ( seed ) {
                if ( postFinder || preFilter ) {
                    if ( postFinder ) {
                        // Get the final matcherOut by condensing this intermediate into postFinder contexts
                        temp = [];
                        i = matcherOut.length;
                        while ( i-- ) {
                            if ( (elem = matcherOut[i]) ) {
                                // Restore matcherIn since elem is not yet a final match
                                temp.push( (matcherIn[i] = elem) );
                            }
                        }
                        postFinder( null, (matcherOut = []), temp, xml );
                    }
    
                    // Move matched elements from seed to results to keep them synchronized
                    i = matcherOut.length;
                    while ( i-- ) {
                        if ( (elem = matcherOut[i]) &&
                            (temp = postFinder ? indexOf( seed, elem ) : preMap[i]) > -1 ) {
    
                            seed[temp] = !(results[temp] = elem);
                        }
                    }
                }
    
            // Add elements to results, through postFinder if defined
            } else {
                matcherOut = condense(
                    matcherOut === results ?
                        matcherOut.splice( preexisting, matcherOut.length ) :
                        matcherOut
                );
                if ( postFinder ) {
                    postFinder( null, results, matcherOut, xml );
                } else {
                    push.apply( results, matcherOut );
                }
            }
        });
    }
    
    function matcherFromTokens( tokens ) {
        var checkContext, matcher, j,
            len = tokens.length,
            leadingRelative = Expr.relative[ tokens[0].type ],
            implicitRelative = leadingRelative || Expr.relative[" "],
            i = leadingRelative ? 1 : 0,
    
            // The foundational matcher ensures that elements are reachable from top-level context(s)
            matchContext = addCombinator( function( elem ) {
                return elem === checkContext;
            }, implicitRelative, true ),
            matchAnyContext = addCombinator( function( elem ) {
                return indexOf( checkContext, elem ) > -1;
            }, implicitRelative, true ),
            matchers = [ function( elem, context, xml ) {
                var ret = ( !leadingRelative && ( xml || context !== outermostContext ) ) || (
                    (checkContext = context).nodeType ?
                        matchContext( elem, context, xml ) :
                        matchAnyContext( elem, context, xml ) );
                // Avoid hanging onto element (issue #299)
                checkContext = null;
                return ret;
            } ];
    
        for ( ; i < len; i++ ) {
            if ( (matcher = Expr.relative[ tokens[i].type ]) ) {
                matchers = [ addCombinator(elementMatcher( matchers ), matcher) ];
            } else {
                matcher = Expr.filter[ tokens[i].type ].apply( null, tokens[i].matches );
    
                // Return special upon seeing a positional matcher
                if ( matcher[ expando ] ) {
                    // Find the next relative operator (if any) for proper handling
                    j = ++i;
                    for ( ; j < len; j++ ) {
                        if ( Expr.relative[ tokens[j].type ] ) {
                            break;
                        }
                    }
                    return setMatcher(
                        i > 1 && elementMatcher( matchers ),
                        i > 1 && toSelector(
                            // If the preceding token was a descendant combinator, insert an implicit any-element `*`
                            tokens.slice( 0, i - 1 ).concat({ value: tokens[ i - 2 ].type === " " ? "*" : "" })
                        ).replace( rtrim, "$1" ),
                        matcher,
                        i < j && matcherFromTokens( tokens.slice( i, j ) ),
                        j < len && matcherFromTokens( (tokens = tokens.slice( j )) ),
                        j < len && toSelector( tokens )
                    );
                }
                matchers.push( matcher );
            }
        }
    
        return elementMatcher( matchers );
    }
    
    function matcherFromGroupMatchers( elementMatchers, setMatchers ) {
        var bySet = setMatchers.length > 0,
            byElement = elementMatchers.length > 0,
            superMatcher = function( seed, context, xml, results, outermost ) {
                var elem, j, matcher,
                    matchedCount = 0,
                    i = "0",
                    unmatched = seed && [],
                    setMatched = [],
                    contextBackup = outermostContext,
                    // We must always have either seed elements or outermost context
                    elems = seed || byElement && Expr.find["TAG"]( "*", outermost ),
                    // Use integer dirruns iff this is the outermost matcher
                    dirrunsUnique = (dirruns += contextBackup == null ? 1 : Math.random() || 0.1),
                    len = elems.length;
    
                if ( outermost ) {
                    outermostContext = context === document || context || outermost;
                }
    
                // Add elements passing elementMatchers directly to results
                // Support: IE<9, Safari
                // Tolerate NodeList properties (IE: "length"; Safari: <number>) matching elements by id
                for ( ; i !== len && (elem = elems[i]) != null; i++ ) {
                    if ( byElement && elem ) {
                        j = 0;
                        if ( !context && elem.ownerDocument !== document ) {
                            setDocument( elem );
                            xml = !documentIsHTML;
                        }
                        while ( (matcher = elementMatchers[j++]) ) {
                            if ( matcher( elem, context || document, xml) ) {
                                results.push( elem );
                                break;
                            }
                        }
                        if ( outermost ) {
                            dirruns = dirrunsUnique;
                        }
                    }
    
                    // Track unmatched elements for set filters
                    if ( bySet ) {
                        // They will have gone through all possible matchers
                        if ( (elem = !matcher && elem) ) {
                            matchedCount--;
                        }
    
                        // Lengthen the array for every element, matched or not
                        if ( seed ) {
                            unmatched.push( elem );
                        }
                    }
                }
    
                // `i` is now the count of elements visited above, and adding it to `matchedCount`
                // makes the latter nonnegative.
                matchedCount += i;
    
                // Apply set filters to unmatched elements
                // NOTE: This can be skipped if there are no unmatched elements (i.e., `matchedCount`
                // equals `i`), unless we didn't visit _any_ elements in the above loop because we have
                // no element matchers and no seed.
                // Incrementing an initially-string "0" `i` allows `i` to remain a string only in that
                // case, which will result in a "00" `matchedCount` that differs from `i` but is also
                // numerically zero.
                if ( bySet && i !== matchedCount ) {
                    j = 0;
                    while ( (matcher = setMatchers[j++]) ) {
                        matcher( unmatched, setMatched, context, xml );
                    }
    
                    if ( seed ) {
                        // Reintegrate element matches to eliminate the need for sorting
                        if ( matchedCount > 0 ) {
                            while ( i-- ) {
                                if ( !(unmatched[i] || setMatched[i]) ) {
                                    setMatched[i] = pop.call( results );
                                }
                            }
                        }
    
                        // Discard index placeholder values to get only actual matches
                        setMatched = condense( setMatched );
                    }
    
                    // Add matches to results
                    push.apply( results, setMatched );
    
                    // Seedless set matches succeeding multiple successful matchers stipulate sorting
                    if ( outermost && !seed && setMatched.length > 0 &&
                        ( matchedCount + setMatchers.length ) > 1 ) {
    
                        Sizzle.uniqueSort( results );
                    }
                }
    
                // Override manipulation of globals by nested matchers
                if ( outermost ) {
                    dirruns = dirrunsUnique;
                    outermostContext = contextBackup;
                }
    
                return unmatched;
            };
    
        return bySet ?
            markFunction( superMatcher ) :
            superMatcher;
    }
    
    compile = Sizzle.compile = function( selector, match /* Internal Use Only */ ) {
        var i,
            setMatchers = [],
            elementMatchers = [],
            cached = compilerCache[ selector + " " ];
    
        if ( !cached ) {
            // Generate a function of recursive functions that can be used to check each element
            if ( !match ) {
                match = tokenize( selector );
            }
            i = match.length;
            while ( i-- ) {
                cached = matcherFromTokens( match[i] );
                if ( cached[ expando ] ) {
                    setMatchers.push( cached );
                } else {
                    elementMatchers.push( cached );
                }
            }
    
            // Cache the compiled function
            cached = compilerCache( selector, matcherFromGroupMatchers( elementMatchers, setMatchers ) );
    
            // Save selector and tokenization
            cached.selector = selector;
        }
        return cached;
    };
    
    /**
     * A low-level selection function that works with Sizzle's compiled
     *  selector functions
     * @param {String|Function} selector A selector or a pre-compiled
     *  selector function built with Sizzle.compile
     * @param {Element} context
     * @param {Array} [results]
     * @param {Array} [seed] A set of elements to match against
     */
    select = Sizzle.select = function( selector, context, results, seed ) {
        var i, tokens, token, type, find,
            compiled = typeof selector === "function" && selector,
            match = !seed && tokenize( (selector = compiled.selector || selector) );
    
        results = results || [];
    
        // Try to minimize operations if there is only one selector in the list and no seed
        // (the latter of which guarantees us context)
        if ( match.length === 1 ) {
    
            // Reduce context if the leading compound selector is an ID
            tokens = match[0] = match[0].slice( 0 );
            if ( tokens.length > 2 && (token = tokens[0]).type === "ID" &&
                    context.nodeType === 9 && documentIsHTML && Expr.relative[ tokens[1].type ] ) {
    
                context = ( Expr.find["ID"]( token.matches[0].replace(runescape, funescape), context ) || [] )[0];
                if ( !context ) {
                    return results;
    
                // Precompiled matchers will still verify ancestry, so step up a level
                } else if ( compiled ) {
                    context = context.parentNode;
                }
    
                selector = selector.slice( tokens.shift().value.length );
            }
    
            // Fetch a seed set for right-to-left matching
            i = matchExpr["needsContext"].test( selector ) ? 0 : tokens.length;
            while ( i-- ) {
                token = tokens[i];
    
                // Abort if we hit a combinator
                if ( Expr.relative[ (type = token.type) ] ) {
                    break;
                }
                if ( (find = Expr.find[ type ]) ) {
                    // Search, expanding context for leading sibling combinators
                    if ( (seed = find(
                        token.matches[0].replace( runescape, funescape ),
                        rsibling.test( tokens[0].type ) && testContext( context.parentNode ) || context
                    )) ) {
    
                        // If seed is empty or no tokens remain, we can return early
                        tokens.splice( i, 1 );
                        selector = seed.length && toSelector( tokens );
                        if ( !selector ) {
                            push.apply( results, seed );
                            return results;
                        }
    
                        break;
                    }
                }
            }
        }
    
        // Compile and execute a filtering function if one is not provided
        // Provide `match` to avoid retokenization if we modified the selector above
        ( compiled || compile( selector, match ) )(
            seed,
            context,
            !documentIsHTML,
            results,
            !context || rsibling.test( selector ) && testContext( context.parentNode ) || context
        );
        return results;
    };
    
    // One-time assignments
    
    // Sort stability
    support.sortStable = expando.split("").sort( sortOrder ).join("") === expando;
    
    // Support: Chrome 14-35+
    // Always assume duplicates if they aren't passed to the comparison function
    support.detectDuplicates = !!hasDuplicate;
    
    // Initialize against the default document
    setDocument();
    
    // Support: Webkit<537.32 - Safari 6.0.3/Chrome 25 (fixed in Chrome 27)
    // Detached nodes confoundingly follow *each other*
    support.sortDetached = assert(function( el ) {
        // Should return 1, but returns 4 (following)
        return el.compareDocumentPosition( document.createElement("fieldset") ) & 1;
    });
    
    // Support: IE<8
    // Prevent attribute/property "interpolation"
    // https://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx
    if ( !assert(function( el ) {
        el.innerHTML = "<a href='#'></a>";
        return el.firstChild.getAttribute("href") === "#" ;
    }) ) {
        addHandle( "type|href|height|width", function( elem, name, isXML ) {
            if ( !isXML ) {
                return elem.getAttribute( name, name.toLowerCase() === "type" ? 1 : 2 );
            }
        });
    }
    
    // Support: IE<9
    // Use defaultValue in place of getAttribute("value")
    if ( !support.attributes || !assert(function( el ) {
        el.innerHTML = "<input/>";
        el.firstChild.setAttribute( "value", "" );
        return el.firstChild.getAttribute( "value" ) === "";
    }) ) {
        addHandle( "value", function( elem, name, isXML ) {
            if ( !isXML && elem.nodeName.toLowerCase() === "input" ) {
                return elem.defaultValue;
            }
        });
    }
    
    // Support: IE<9
    // Use getAttributeNode to fetch booleans when getAttribute lies
    if ( !assert(function( el ) {
        return el.getAttribute("disabled") == null;
    }) ) {
        addHandle( booleans, function( elem, name, isXML ) {
            var val;
            if ( !isXML ) {
                return elem[ name ] === true ? name.toLowerCase() :
                        (val = elem.getAttributeNode( name )) && val.specified ?
                        val.value :
                    null;
            }
        });
    }
    
    return Sizzle;
    
    })( window );
    
    
    
    jQuery.find = Sizzle;
    jQuery.expr = Sizzle.selectors;
    
    // Deprecated
    jQuery.expr[ ":" ] = jQuery.expr.pseudos;
    jQuery.uniqueSort = jQuery.unique = Sizzle.uniqueSort;
    jQuery.text = Sizzle.getText;
    jQuery.isXMLDoc = Sizzle.isXML;
    jQuery.contains = Sizzle.contains;
    jQuery.escapeSelector = Sizzle.escape;
    
    
    
    
    var dir = function( elem, dir, until ) {
        var matched = [],
            truncate = until !== undefined;
    
        while ( ( elem = elem[ dir ] ) && elem.nodeType !== 9 ) {
            if ( elem.nodeType === 1 ) {
                if ( truncate && jQuery( elem ).is( until ) ) {
                    break;
                }
                matched.push( elem );
            }
        }
        return matched;
    };
    
    
    var siblings = function( n, elem ) {
        var matched = [];
    
        for ( ; n; n = n.nextSibling ) {
            if ( n.nodeType === 1 && n !== elem ) {
                matched.push( n );
            }
        }
    
        return matched;
    };
    
    
    var rneedsContext = jQuery.expr.match.needsContext;
    
    
    
    function nodeName( elem, name ) {
    
      return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase();
    
    };
    var rsingleTag = ( /^<([a-z][^\/\0>:\x20\t\r\n\f]*)[\x20\t\r\n\f]*\/?>(?:<\/\1>|)$/i );
    
    
    
    // Implement the identical functionality for filter and not
    function winnow( elements, qualifier, not ) {
        if ( isFunction( qualifier ) ) {
            return jQuery.grep( elements, function( elem, i ) {
                return !!qualifier.call( elem, i, elem ) !== not;
            } );
        }
    
        // Single element
        if ( qualifier.nodeType ) {
            return jQuery.grep( elements, function( elem ) {
                return ( elem === qualifier ) !== not;
            } );
        }
    
        // Arraylike of elements (jQuery, arguments, Array)
        if ( typeof qualifier !== "string" ) {
            return jQuery.grep( elements, function( elem ) {
                return ( indexOf.call( qualifier, elem ) > -1 ) !== not;
            } );
        }
    
        // Filtered directly for both simple and complex selectors
        return jQuery.filter( qualifier, elements, not );
    }
    
    jQuery.filter = function( expr, elems, not ) {
        var elem = elems[ 0 ];
    
        if ( not ) {
            expr = ":not(" + expr + ")";
        }
    
        if ( elems.length === 1 && elem.nodeType === 1 ) {
            return jQuery.find.matchesSelector( elem, expr ) ? [ elem ] : [];
        }
    
        return jQuery.find.matches( expr, jQuery.grep( elems, function( elem ) {
            return elem.nodeType === 1;
        } ) );
    };
    
    jQuery.fn.extend( {
        find: function( selector ) {
            var i, ret,
                len = this.length,
                self = this;
    
            if ( typeof selector !== "string" ) {
                return this.pushStack( jQuery( selector ).filter( function() {
                    for ( i = 0; i < len; i++ ) {
                        if ( jQuery.contains( self[ i ], this ) ) {
                            return true;
                        }
                    }
                } ) );
            }
    
            ret = this.pushStack( [] );
    
            for ( i = 0; i < len; i++ ) {
                jQuery.find( selector, self[ i ], ret );
            }
    
            return len > 1 ? jQuery.uniqueSort( ret ) : ret;
        },
        filter: function( selector ) {
            return this.pushStack( winnow( this, selector || [], false ) );
        },
        not: function( selector ) {
            return this.pushStack( winnow( this, selector || [], true ) );
        },
        is: function( selector ) {
            return !!winnow(
                this,
    
                // If this is a positional/relative selector, check membership in the returned set
                // so $("p:first").is("p:last") won't return true for a doc with two "p".
                typeof selector === "string" && rneedsContext.test( selector ) ?
                    jQuery( selector ) :
                    selector || [],
                false
            ).length;
        }
    } );
    
    
    // Initialize a jQuery object
    
    
    // A central reference to the root jQuery(document)
    var rootjQuery,
    
        // A simple way to check for HTML strings
        // Prioritize #id over <tag> to avoid XSS via location.hash (#9521)
        // Strict HTML recognition (#11290: must start with <)
        // Shortcut simple #id case for speed
        rquickExpr = /^(?:\s*(<[\w\W]+>)[^>]*|#([\w-]+))$/,
    
        init = jQuery.fn.init = function( selector, context, root ) {
            var match, elem;
    
            // HANDLE: $(""), $(null), $(undefined), $(false)
            if ( !selector ) {
                return this;
            }
    
            // Method init() accepts an alternate rootjQuery
            // so migrate can support jQuery.sub (gh-2101)
            root = root || rootjQuery;
    
            // Handle HTML strings
            if ( typeof selector === "string" ) {
                if ( selector[ 0 ] === "<" &&
                    selector[ selector.length - 1 ] === ">" &&
                    selector.length >= 3 ) {
    
                    // Assume that strings that start and end with <> are HTML and skip the regex check
                    match = [ null, selector, null ];
    
                } else {
                    match = rquickExpr.exec( selector );
                }
    
                // Match html or make sure no context is specified for #id
                if ( match && ( match[ 1 ] || !context ) ) {
    
                    // HANDLE: $(html) -> $(array)
                    if ( match[ 1 ] ) {
                        context = context instanceof jQuery ? context[ 0 ] : context;
    
                        // Option to run scripts is true for back-compat
                        // Intentionally let the error be thrown if parseHTML is not present
                        jQuery.merge( this, jQuery.parseHTML(
                            match[ 1 ],
                            context && context.nodeType ? context.ownerDocument || context : document,
                            true
                        ) );
    
                        // HANDLE: $(html, props)
                        if ( rsingleTag.test( match[ 1 ] ) && jQuery.isPlainObject( context ) ) {
                            for ( match in context ) {
    
                                // Properties of context are called as methods if possible
                                if ( isFunction( this[ match ] ) ) {
                                    this[ match ]( context[ match ] );
    
                                // ...and otherwise set as attributes
                                } else {
                                    this.attr( match, context[ match ] );
                                }
                            }
                        }
    
                        return this;
    
                    // HANDLE: $(#id)
                    } else {
                        elem = document.getElementById( match[ 2 ] );
    
                        if ( elem ) {
    
                            // Inject the element directly into the jQuery object
                            this[ 0 ] = elem;
                            this.length = 1;
                        }
                        return this;
                    }
    
                // HANDLE: $(expr, $(...))
                } else if ( !context || context.jquery ) {
                    return ( context || root ).find( selector );
    
                // HANDLE: $(expr, context)
                // (which is just equivalent to: $(context).find(expr)
                } else {
                    return this.constructor( context ).find( selector );
                }
    
            // HANDLE: $(DOMElement)
            } else if ( selector.nodeType ) {
                this[ 0 ] = selector;
                this.length = 1;
                return this;
    
            // HANDLE: $(function)
            // Shortcut for document ready
            } else if ( isFunction( selector ) ) {
                return root.ready !== undefined ?
                    root.ready( selector ) :
    
                    // Execute immediately if ready is not present
                    selector( jQuery );
            }
    
            return jQuery.makeArray( selector, this );
        };
    
    // Give the init function the jQuery prototype for later instantiation
    init.prototype = jQuery.fn;
    
    // Initialize central reference
    rootjQuery = jQuery( document );
    
    
    var rparentsprev = /^(?:parents|prev(?:Until|All))/,
    
        // Methods guaranteed to produce a unique set when starting from a unique set
        guaranteedUnique = {
            children: true,
            contents: true,
            next: true,
            prev: true
        };
    
    jQuery.fn.extend( {
        has: function( target ) {
            var targets = jQuery( target, this ),
                l = targets.length;
    
            return this.filter( function() {
                var i = 0;
                for ( ; i < l; i++ ) {
                    if ( jQuery.contains( this, targets[ i ] ) ) {
                        return true;
                    }
                }
            } );
        },
    
        closest: function( selectors, context ) {
            var cur,
                i = 0,
                l = this.length,
                matched = [],
                targets = typeof selectors !== "string" && jQuery( selectors );
    
            // Positional selectors never match, since there's no _selection_ context
            if ( !rneedsContext.test( selectors ) ) {
                for ( ; i < l; i++ ) {
                    for ( cur = this[ i ]; cur && cur !== context; cur = cur.parentNode ) {
    
                        // Always skip document fragments
                        if ( cur.nodeType < 11 && ( targets ?
                            targets.index( cur ) > -1 :
    
                            // Don't pass non-elements to Sizzle
                            cur.nodeType === 1 &&
                                jQuery.find.matchesSelector( cur, selectors ) ) ) {
    
                            matched.push( cur );
                            break;
                        }
                    }
                }
            }
    
            return this.pushStack( matched.length > 1 ? jQuery.uniqueSort( matched ) : matched );
        },
    
        // Determine the position of an element within the set
        index: function( elem ) {
    
            // No argument, return index in parent
            if ( !elem ) {
                return ( this[ 0 ] && this[ 0 ].parentNode ) ? this.first().prevAll().length : -1;
            }
    
            // Index in selector
            if ( typeof elem === "string" ) {
                return indexOf.call( jQuery( elem ), this[ 0 ] );
            }
    
            // Locate the position of the desired element
            return indexOf.call( this,
    
                // If it receives a jQuery object, the first element is used
                elem.jquery ? elem[ 0 ] : elem
            );
        },
    
        add: function( selector, context ) {
            return this.pushStack(
                jQuery.uniqueSort(
                    jQuery.merge( this.get(), jQuery( selector, context ) )
                )
            );
        },
    
        addBack: function( selector ) {
            return this.add( selector == null ?
                this.prevObject : this.prevObject.filter( selector )
            );
        }
    } );
    
    function sibling( cur, dir ) {
        while ( ( cur = cur[ dir ] ) && cur.nodeType !== 1 ) {}
        return cur;
    }
    
    jQuery.each( {
        parent: function( elem ) {
            var parent = elem.parentNode;
            return parent && parent.nodeType !== 11 ? parent : null;
        },
        parents: function( elem ) {
            return dir( elem, "parentNode" );
        },
        parentsUntil: function( elem, i, until ) {
            return dir( elem, "parentNode", until );
        },
        next: function( elem ) {
            return sibling( elem, "nextSibling" );
        },
        prev: function( elem ) {
            return sibling( elem, "previousSibling" );
        },
        nextAll: function( elem ) {
            return dir( elem, "nextSibling" );
        },
        prevAll: function( elem ) {
            return dir( elem, "previousSibling" );
        },
        nextUntil: function( elem, i, until ) {
            return dir( elem, "nextSibling", until );
        },
        prevUntil: function( elem, i, until ) {
            return dir( elem, "previousSibling", until );
        },
        siblings: function( elem ) {
            return siblings( ( elem.parentNode || {} ).firstChild, elem );
        },
        children: function( elem ) {
            return siblings( elem.firstChild );
        },
        contents: function( elem ) {
            if ( typeof elem.contentDocument !== "undefined" ) {
                return elem.contentDocument;
            }
    
            // Support: IE 9 - 11 only, iOS 7 only, Android Browser <=4.3 only
            // Treat the template element as a regular one in browsers that
            // don't support it.
            if ( nodeName( elem, "template" ) ) {
                elem = elem.content || elem;
            }
    
            return jQuery.merge( [], elem.childNodes );
        }
    }, function( name, fn ) {
        jQuery.fn[ name ] = function( until, selector ) {
            var matched = jQuery.map( this, fn, until );
    
            if ( name.slice( -5 ) !== "Until" ) {
                selector = until;
            }
    
            if ( selector && typeof selector === "string" ) {
                matched = jQuery.filter( selector, matched );
            }
    
            if ( this.length > 1 ) {
    
                // Remove duplicates
                if ( !guaranteedUnique[ name ] ) {
                    jQuery.uniqueSort( matched );
                }
    
                // Reverse order for parents* and prev-derivatives
                if ( rparentsprev.test( name ) ) {
                    matched.reverse();
                }
            }
    
            return this.pushStack( matched );
        };
    } );
    var rnothtmlwhite = ( /[^\x20\t\r\n\f]+/g );
    
    
    
    // Convert String-formatted options into Object-formatted ones
    function createOptions( options ) {
        var object = {};
        jQuery.each( options.match( rnothtmlwhite ) || [], function( _, flag ) {
            object[ flag ] = true;
        } );
        return object;
    }
    
    /*
     * Create a callback list using the following parameters:
     *
     *	options: an optional list of space-separated options that will change how
     *			the callback list behaves or a more traditional option object
     *
     * By default a callback list will act like an event callback list and can be
     * "fired" multiple times.
     *
     * Possible options:
     *
     *	once:			will ensure the callback list can only be fired once (like a Deferred)
     *
     *	memory:			will keep track of previous values and will call any callback added
     *					after the list has been fired right away with the latest "memorized"
     *					values (like a Deferred)
     *
     *	unique:			will ensure a callback can only be added once (no duplicate in the list)
     *
     *	stopOnFalse:	interrupt callings when a callback returns false
     *
     */
    jQuery.Callbacks = function( options ) {
    
        // Convert options from String-formatted to Object-formatted if needed
        // (we check in cache first)
        options = typeof options === "string" ?
            createOptions( options ) :
            jQuery.extend( {}, options );
    
        var // Flag to know if list is currently firing
            firing,
    
            // Last fire value for non-forgettable lists
            memory,
    
            // Flag to know if list was already fired
            fired,
    
            // Flag to prevent firing
            locked,
    
            // Actual callback list
            list = [],
    
            // Queue of execution data for repeatable lists
            queue = [],
    
            // Index of currently firing callback (modified by add/remove as needed)
            firingIndex = -1,
    
            // Fire callbacks
            fire = function() {
    
                // Enforce single-firing
                locked = locked || options.once;
    
                // Execute callbacks for all pending executions,
                // respecting firingIndex overrides and runtime changes
                fired = firing = true;
                for ( ; queue.length; firingIndex = -1 ) {
                    memory = queue.shift();
                    while ( ++firingIndex < list.length ) {
    
                        // Run callback and check for early termination
                        if ( list[ firingIndex ].apply( memory[ 0 ], memory[ 1 ] ) === false &&
                            options.stopOnFalse ) {
    
                            // Jump to end and forget the data so .add doesn't re-fire
                            firingIndex = list.length;
                            memory = false;
                        }
                    }
                }
    
                // Forget the data if we're done with it
                if ( !options.memory ) {
                    memory = false;
                }
    
                firing = false;
    
                // Clean up if we're done firing for good
                if ( locked ) {
    
                    // Keep an empty list if we have data for future add calls
                    if ( memory ) {
                        list = [];
    
                    // Otherwise, this object is spent
                    } else {
                        list = "";
                    }
                }
            },
    
            // Actual Callbacks object
            self = {
    
                // Add a callback or a collection of callbacks to the list
                add: function() {
                    if ( list ) {
    
                        // If we have memory from a past run, we should fire after adding
                        if ( memory && !firing ) {
                            firingIndex = list.length - 1;
                            queue.push( memory );
                        }
    
                        ( function add( args ) {
                            jQuery.each( args, function( _, arg ) {
                                if ( isFunction( arg ) ) {
                                    if ( !options.unique || !self.has( arg ) ) {
                                        list.push( arg );
                                    }
                                } else if ( arg && arg.length && toType( arg ) !== "string" ) {
    
                                    // Inspect recursively
                                    add( arg );
                                }
                            } );
                        } )( arguments );
    
                        if ( memory && !firing ) {
                            fire();
                        }
                    }
                    return this;
                },
    
                // Remove a callback from the list
                remove: function() {
                    jQuery.each( arguments, function( _, arg ) {
                        var index;
                        while ( ( index = jQuery.inArray( arg, list, index ) ) > -1 ) {
                            list.splice( index, 1 );
    
                            // Handle firing indexes
                            if ( index <= firingIndex ) {
                                firingIndex--;
                            }
                        }
                    } );
                    return this;
                },
    
                // Check if a given callback is in the list.
                // If no argument is given, return whether or not list has callbacks attached.
                has: function( fn ) {
                    return fn ?
                        jQuery.inArray( fn, list ) > -1 :
                        list.length > 0;
                },
    
                // Remove all callbacks from the list
                empty: function() {
                    if ( list ) {
                        list = [];
                    }
                    return this;
                },
    
                // Disable .fire and .add
                // Abort any current/pending executions
                // Clear all callbacks and values
                disable: function() {
                    locked = queue = [];
                    list = memory = "";
                    return this;
                },
                disabled: function() {
                    return !list;
                },
    
                // Disable .fire
                // Also disable .add unless we have memory (since it would have no effect)
                // Abort any pending executions
                lock: function() {
                    locked = queue = [];
                    if ( !memory && !firing ) {
                        list = memory = "";
                    }
                    return this;
                },
                locked: function() {
                    return !!locked;
                },
    
                // Call all callbacks with the given context and arguments
                fireWith: function( context, args ) {
                    if ( !locked ) {
                        args = args || [];
                        args = [ context, args.slice ? args.slice() : args ];
                        queue.push( args );
                        if ( !firing ) {
                            fire();
                        }
                    }
                    return this;
                },
    
                // Call all the callbacks with the given arguments
                fire: function() {
                    self.fireWith( this, arguments );
                    return this;
                },
    
                // To know if the callbacks have already been called at least once
                fired: function() {
                    return !!fired;
                }
            };
    
        return self;
    };
    
    
    function Identity( v ) {
        return v;
    }
    function Thrower( ex ) {
        throw ex;
    }
    
    function adoptValue( value, resolve, reject, noValue ) {
        var method;
    
        try {
    
            // Check for promise aspect first to privilege synchronous behavior
            if ( value && isFunction( ( method = value.promise ) ) ) {
                method.call( value ).done( resolve ).fail( reject );
    
            // Other thenables
            } else if ( value && isFunction( ( method = value.then ) ) ) {
                method.call( value, resolve, reject );
    
            // Other non-thenables
            } else {
    
                // Control `resolve` arguments by letting Array#slice cast boolean `noValue` to integer:
                // * false: [ value ].slice( 0 ) => resolve( value )
                // * true: [ value ].slice( 1 ) => resolve()
                resolve.apply( undefined, [ value ].slice( noValue ) );
            }
    
        // For Promises/A+, convert exceptions into rejections
        // Since jQuery.when doesn't unwrap thenables, we can skip the extra checks appearing in
        // Deferred#then to conditionally suppress rejection.
        } catch ( value ) {
    
            // Support: Android 4.0 only
            // Strict mode functions invoked without .call/.apply get global-object context
            reject.apply( undefined, [ value ] );
        }
    }
    
    jQuery.extend( {
    
        Deferred: function( func ) {
            var tuples = [
    
                    // action, add listener, callbacks,
                    // ... .then handlers, argument index, [final state]
                    [ "notify", "progress", jQuery.Callbacks( "memory" ),
                        jQuery.Callbacks( "memory" ), 2 ],
                    [ "resolve", "done", jQuery.Callbacks( "once memory" ),
                        jQuery.Callbacks( "once memory" ), 0, "resolved" ],
                    [ "reject", "fail", jQuery.Callbacks( "once memory" ),
                        jQuery.Callbacks( "once memory" ), 1, "rejected" ]
                ],
                state = "pending",
                promise = {
                    state: function() {
                        return state;
                    },
                    always: function() {
                        deferred.done( arguments ).fail( arguments );
                        return this;
                    },
                    "catch": function( fn ) {
                        return promise.then( null, fn );
                    },
    
                    // Keep pipe for back-compat
                    pipe: function( /* fnDone, fnFail, fnProgress */ ) {
                        var fns = arguments;
    
                        return jQuery.Deferred( function( newDefer ) {
                            jQuery.each( tuples, function( i, tuple ) {
    
                                // Map tuples (progress, done, fail) to arguments (done, fail, progress)
                                var fn = isFunction( fns[ tuple[ 4 ] ] ) && fns[ tuple[ 4 ] ];
    
                                // deferred.progress(function() { bind to newDefer or newDefer.notify })
                                // deferred.done(function() { bind to newDefer or newDefer.resolve })
                                // deferred.fail(function() { bind to newDefer or newDefer.reject })
                                deferred[ tuple[ 1 ] ]( function() {
                                    var returned = fn && fn.apply( this, arguments );
                                    if ( returned && isFunction( returned.promise ) ) {
                                        returned.promise()
                                            .progress( newDefer.notify )
                                            .done( newDefer.resolve )
                                            .fail( newDefer.reject );
                                    } else {
                                        newDefer[ tuple[ 0 ] + "With" ](
                                            this,
                                            fn ? [ returned ] : arguments
                                        );
                                    }
                                } );
                            } );
                            fns = null;
                        } ).promise();
                    },
                    then: function( onFulfilled, onRejected, onProgress ) {
                        var maxDepth = 0;
                        function resolve( depth, deferred, handler, special ) {
                            return function() {
                                var that = this,
                                    args = arguments,
                                    mightThrow = function() {
                                        var returned, then;
    
                                        // Support: Promises/A+ section 2.3.3.3.3
                                        // https://promisesaplus.com/#point-59
                                        // Ignore double-resolution attempts
                                        if ( depth < maxDepth ) {
                                            return;
                                        }
    
                                        returned = handler.apply( that, args );
    
                                        // Support: Promises/A+ section 2.3.1
                                        // https://promisesaplus.com/#point-48
                                        if ( returned === deferred.promise() ) {
                                            throw new TypeError( "Thenable self-resolution" );
                                        }
    
                                        // Support: Promises/A+ sections 2.3.3.1, 3.5
                                        // https://promisesaplus.com/#point-54
                                        // https://promisesaplus.com/#point-75
                                        // Retrieve `then` only once
                                        then = returned &&
    
                                            // Support: Promises/A+ section 2.3.4
                                            // https://promisesaplus.com/#point-64
                                            // Only check objects and functions for thenability
                                            ( typeof returned === "object" ||
                                                typeof returned === "function" ) &&
                                            returned.then;
    
                                        // Handle a returned thenable
                                        if ( isFunction( then ) ) {
    
                                            // Special processors (notify) just wait for resolution
                                            if ( special ) {
                                                then.call(
                                                    returned,
                                                    resolve( maxDepth, deferred, Identity, special ),
                                                    resolve( maxDepth, deferred, Thrower, special )
                                                );
    
                                            // Normal processors (resolve) also hook into progress
                                            } else {
    
                                                // ...and disregard older resolution values
                                                maxDepth++;
    
                                                then.call(
                                                    returned,
                                                    resolve( maxDepth, deferred, Identity, special ),
                                                    resolve( maxDepth, deferred, Thrower, special ),
                                                    resolve( maxDepth, deferred, Identity,
                                                        deferred.notifyWith )
                                                );
                                            }
    
                                        // Handle all other returned values
                                        } else {
    
                                            // Only substitute handlers pass on context
                                            // and multiple values (non-spec behavior)
                                            if ( handler !== Identity ) {
                                                that = undefined;
                                                args = [ returned ];
                                            }
    
                                            // Process the value(s)
                                            // Default process is resolve
                                            ( special || deferred.resolveWith )( that, args );
                                        }
                                    },
    
                                    // Only normal processors (resolve) catch and reject exceptions
                                    process = special ?
                                        mightThrow :
                                        function() {
                                            try {
                                                mightThrow();
                                            } catch ( e ) {
    
                                                if ( jQuery.Deferred.exceptionHook ) {
                                                    jQuery.Deferred.exceptionHook( e,
                                                        process.stackTrace );
                                                }
    
                                                // Support: Promises/A+ section 2.3.3.3.4.1
                                                // https://promisesaplus.com/#point-61
                                                // Ignore post-resolution exceptions
                                                if ( depth + 1 >= maxDepth ) {
    
                                                    // Only substitute handlers pass on context
                                                    // and multiple values (non-spec behavior)
                                                    if ( handler !== Thrower ) {
                                                        that = undefined;
                                                        args = [ e ];
                                                    }
    
                                                    deferred.rejectWith( that, args );
                                                }
                                            }
                                        };
    
                                // Support: Promises/A+ section 2.3.3.3.1
                                // https://promisesaplus.com/#point-57
                                // Re-resolve promises immediately to dodge false rejection from
                                // subsequent errors
                                if ( depth ) {
                                    process();
                                } else {
    
                                    // Call an optional hook to record the stack, in case of exception
                                    // since it's otherwise lost when execution goes async
                                    if ( jQuery.Deferred.getStackHook ) {
                                        process.stackTrace = jQuery.Deferred.getStackHook();
                                    }
                                    window.setTimeout( process );
                                }
                            };
                        }
    
                        return jQuery.Deferred( function( newDefer ) {
    
                            // progress_handlers.add( ... )
                            tuples[ 0 ][ 3 ].add(
                                resolve(
                                    0,
                                    newDefer,
                                    isFunction( onProgress ) ?
                                        onProgress :
                                        Identity,
                                    newDefer.notifyWith
                                )
                            );
    
                            // fulfilled_handlers.add( ... )
                            tuples[ 1 ][ 3 ].add(
                                resolve(
                                    0,
                                    newDefer,
                                    isFunction( onFulfilled ) ?
                                        onFulfilled :
                                        Identity
                                )
                            );
    
                            // rejected_handlers.add( ... )
                            tuples[ 2 ][ 3 ].add(
                                resolve(
                                    0,
                                    newDefer,
                                    isFunction( onRejected ) ?
                                        onRejected :
                                        Thrower
                                )
                            );
                        } ).promise();
                    },
    
                    // Get a promise for this deferred
                    // If obj is provided, the promise aspect is added to the object
                    promise: function( obj ) {
                        return obj != null ? jQuery.extend( obj, promise ) : promise;
                    }
                },
                deferred = {};
    
            // Add list-specific methods
            jQuery.each( tuples, function( i, tuple ) {
                var list = tuple[ 2 ],
                    stateString = tuple[ 5 ];
    
                // promise.progress = list.add
                // promise.done = list.add
                // promise.fail = list.add
                promise[ tuple[ 1 ] ] = list.add;
    
                // Handle state
                if ( stateString ) {
                    list.add(
                        function() {
    
                            // state = "resolved" (i.e., fulfilled)
                            // state = "rejected"
                            state = stateString;
                        },
    
                        // rejected_callbacks.disable
                        // fulfilled_callbacks.disable
                        tuples[ 3 - i ][ 2 ].disable,
    
                        // rejected_handlers.disable
                        // fulfilled_handlers.disable
                        tuples[ 3 - i ][ 3 ].disable,
    
                        // progress_callbacks.lock
                        tuples[ 0 ][ 2 ].lock,
    
                        // progress_handlers.lock
                        tuples[ 0 ][ 3 ].lock
                    );
                }
    
                // progress_handlers.fire
                // fulfilled_handlers.fire
                // rejected_handlers.fire
                list.add( tuple[ 3 ].fire );
    
                // deferred.notify = function() { deferred.notifyWith(...) }
                // deferred.resolve = function() { deferred.resolveWith(...) }
                // deferred.reject = function() { deferred.rejectWith(...) }
                deferred[ tuple[ 0 ] ] = function() {
                    deferred[ tuple[ 0 ] + "With" ]( this === deferred ? undefined : this, arguments );
                    return this;
                };
    
                // deferred.notifyWith = list.fireWith
                // deferred.resolveWith = list.fireWith
                // deferred.rejectWith = list.fireWith
                deferred[ tuple[ 0 ] + "With" ] = list.fireWith;
            } );
    
            // Make the deferred a promise
            promise.promise( deferred );
    
            // Call given func if any
            if ( func ) {
                func.call( deferred, deferred );
            }
    
            // All done!
            return deferred;
        },
    
        // Deferred helper
        when: function( singleValue ) {
            var
    
                // count of uncompleted subordinates
                remaining = arguments.length,
    
                // count of unprocessed arguments
                i = remaining,
    
                // subordinate fulfillment data
                resolveContexts = Array( i ),
                resolveValues = slice.call( arguments ),
    
                // the master Deferred
                master = jQuery.Deferred(),
    
                // subordinate callback factory
                updateFunc = function( i ) {
                    return function( value ) {
                        resolveContexts[ i ] = this;
                        resolveValues[ i ] = arguments.length > 1 ? slice.call( arguments ) : value;
                        if ( !( --remaining ) ) {
                            master.resolveWith( resolveContexts, resolveValues );
                        }
                    };
                };
    
            // Single- and empty arguments are adopted like Promise.resolve
            if ( remaining <= 1 ) {
                adoptValue( singleValue, master.done( updateFunc( i ) ).resolve, master.reject,
                    !remaining );
    
                // Use .then() to unwrap secondary thenables (cf. gh-3000)
                if ( master.state() === "pending" ||
                    isFunction( resolveValues[ i ] && resolveValues[ i ].then ) ) {
    
                    return master.then();
                }
            }
    
            // Multiple arguments are aggregated like Promise.all array elements
            while ( i-- ) {
                adoptValue( resolveValues[ i ], updateFunc( i ), master.reject );
            }
    
            return master.promise();
        }
    } );
    
    
    // These usually indicate a programmer mistake during development,
    // warn about them ASAP rather than swallowing them by default.
    var rerrorNames = /^(Eval|Internal|Range|Reference|Syntax|Type|URI)Error$/;
    
    jQuery.Deferred.exceptionHook = function( error, stack ) {
    
        // Support: IE 8 - 9 only
        // Console exists when dev tools are open, which can happen at any time
        if ( window.console && window.console.warn && error && rerrorNames.test( error.name ) ) {
            window.console.warn( "jQuery.Deferred exception: " + error.message, error.stack, stack );
        }
    };
    
    
    
    
    jQuery.readyException = function( error ) {
        window.setTimeout( function() {
            throw error;
        } );
    };
    
    
    
    
    // The deferred used on DOM ready
    var readyList = jQuery.Deferred();
    
    jQuery.fn.ready = function( fn ) {
    
        readyList
            .then( fn )
    
            // Wrap jQuery.readyException in a function so that the lookup
            // happens at the time of error handling instead of callback
            // registration.
            .catch( function( error ) {
                jQuery.readyException( error );
            } );
    
        return this;
    };
    
    jQuery.extend( {
    
        // Is the DOM ready to be used? Set to true once it occurs.
        isReady: false,
    
        // A counter to track how many items to wait for before
        // the ready event fires. See #6781
        readyWait: 1,
    
        // Handle when the DOM is ready
        ready: function( wait ) {
    
            // Abort if there are pending holds or we're already ready
            if ( wait === true ? --jQuery.readyWait : jQuery.isReady ) {
                return;
            }
    
            // Remember that the DOM is ready
            jQuery.isReady = true;
    
            // If a normal DOM Ready event fired, decrement, and wait if need be
            if ( wait !== true && --jQuery.readyWait > 0 ) {
                return;
            }
    
            // If there are functions bound, to execute
            readyList.resolveWith( document, [ jQuery ] );
        }
    } );
    
    jQuery.ready.then = readyList.then;
    
    // The ready event handler and self cleanup method
    function completed() {
        document.removeEventListener( "DOMContentLoaded", completed );
        window.removeEventListener( "load", completed );
        jQuery.ready();
    }
    
    // Catch cases where $(document).ready() is called
    // after the browser event has already occurred.
    // Support: IE <=9 - 10 only
    // Older IE sometimes signals "interactive" too soon
    if ( document.readyState === "complete" ||
        ( document.readyState !== "loading" && !document.documentElement.doScroll ) ) {
    
        // Handle it asynchronously to allow scripts the opportunity to delay ready
        window.setTimeout( jQuery.ready );
    
    } else {
    
        // Use the handy event callback
        document.addEventListener( "DOMContentLoaded", completed );
    
        // A fallback to window.onload, that will always work
        window.addEventListener( "load", completed );
    }
    
    
    
    
    // Multifunctional method to get and set values of a collection
    // The value/s can optionally be executed if it's a function
    var access = function( elems, fn, key, value, chainable, emptyGet, raw ) {
        var i = 0,
            len = elems.length,
            bulk = key == null;
    
        // Sets many values
        if ( toType( key ) === "object" ) {
            chainable = true;
            for ( i in key ) {
                access( elems, fn, i, key[ i ], true, emptyGet, raw );
            }
    
        // Sets one value
        } else if ( value !== undefined ) {
            chainable = true;
    
            if ( !isFunction( value ) ) {
                raw = true;
            }
    
            if ( bulk ) {
    
                // Bulk operations run against the entire set
                if ( raw ) {
                    fn.call( elems, value );
                    fn = null;
    
                // ...except when executing function values
                } else {
                    bulk = fn;
                    fn = function( elem, key, value ) {
                        return bulk.call( jQuery( elem ), value );
                    };
                }
            }
    
            if ( fn ) {
                for ( ; i < len; i++ ) {
                    fn(
                        elems[ i ], key, raw ?
                        value :
                        value.call( elems[ i ], i, fn( elems[ i ], key ) )
                    );
                }
            }
        }
    
        if ( chainable ) {
            return elems;
        }
    
        // Gets
        if ( bulk ) {
            return fn.call( elems );
        }
    
        return len ? fn( elems[ 0 ], key ) : emptyGet;
    };
    
    
    // Matches dashed string for camelizing
    var rmsPrefix = /^-ms-/,
        rdashAlpha = /-([a-z])/g;
    
    // Used by camelCase as callback to replace()
    function fcamelCase( all, letter ) {
        return letter.toUpperCase();
    }
    
    // Convert dashed to camelCase; used by the css and data modules
    // Support: IE <=9 - 11, Edge 12 - 15
    // Microsoft forgot to hump their vendor prefix (#9572)
    function camelCase( string ) {
        return string.replace( rmsPrefix, "ms-" ).replace( rdashAlpha, fcamelCase );
    }
    var acceptData = function( owner ) {
    
        // Accepts only:
        //  - Node
        //    - Node.ELEMENT_NODE
        //    - Node.DOCUMENT_NODE
        //  - Object
        //    - Any
        return owner.nodeType === 1 || owner.nodeType === 9 || !( +owner.nodeType );
    };
    
    
    
    
    function Data() {
        this.expando = jQuery.expando + Data.uid++;
    }
    
    Data.uid = 1;
    
    Data.prototype = {
    
        cache: function( owner ) {
    
            // Check if the owner object already has a cache
            var value = owner[ this.expando ];
    
            // If not, create one
            if ( !value ) {
                value = {};
    
                // We can accept data for non-element nodes in modern browsers,
                // but we should not, see #8335.
                // Always return an empty object.
                if ( acceptData( owner ) ) {
    
                    // If it is a node unlikely to be stringify-ed or looped over
                    // use plain assignment
                    if ( owner.nodeType ) {
                        owner[ this.expando ] = value;
    
                    // Otherwise secure it in a non-enumerable property
                    // configurable must be true to allow the property to be
                    // deleted when data is removed
                    } else {
                        Object.defineProperty( owner, this.expando, {
                            value: value,
                            configurable: true
                        } );
                    }
                }
            }
    
            return value;
        },
        set: function( owner, data, value ) {
            var prop,
                cache = this.cache( owner );
    
            // Handle: [ owner, key, value ] args
            // Always use camelCase key (gh-2257)
            if ( typeof data === "string" ) {
                cache[ camelCase( data ) ] = value;
    
            // Handle: [ owner, { properties } ] args
            } else {
    
                // Copy the properties one-by-one to the cache object
                for ( prop in data ) {
                    cache[ camelCase( prop ) ] = data[ prop ];
                }
            }
            return cache;
        },
        get: function( owner, key ) {
            return key === undefined ?
                this.cache( owner ) :
    
                // Always use camelCase key (gh-2257)
                owner[ this.expando ] && owner[ this.expando ][ camelCase( key ) ];
        },
        access: function( owner, key, value ) {
    
            // In cases where either:
            //
            //   1. No key was specified
            //   2. A string key was specified, but no value provided
            //
            // Take the "read" path and allow the get method to determine
            // which value to return, respectively either:
            //
            //   1. The entire cache object
            //   2. The data stored at the key
            //
            if ( key === undefined ||
                    ( ( key && typeof key === "string" ) && value === undefined ) ) {
    
                return this.get( owner, key );
            }
    
            // When the key is not a string, or both a key and value
            // are specified, set or extend (existing objects) with either:
            //
            //   1. An object of properties
            //   2. A key and value
            //
            this.set( owner, key, value );
    
            // Since the "set" path can have two possible entry points
            // return the expected data based on which path was taken[*]
            return value !== undefined ? value : key;
        },
        remove: function( owner, key ) {
            var i,
                cache = owner[ this.expando ];
    
            if ( cache === undefined ) {
                return;
            }
    
            if ( key !== undefined ) {
    
                // Support array or space separated string of keys
                if ( Array.isArray( key ) ) {
    
                    // If key is an array of keys...
                    // We always set camelCase keys, so remove that.
                    key = key.map( camelCase );
                } else {
                    key = camelCase( key );
    
                    // If a key with the spaces exists, use it.
                    // Otherwise, create an array by matching non-whitespace
                    key = key in cache ?
                        [ key ] :
                        ( key.match( rnothtmlwhite ) || [] );
                }
    
                i = key.length;
    
                while ( i-- ) {
                    delete cache[ key[ i ] ];
                }
            }
    
            // Remove the expando if there's no more data
            if ( key === undefined || jQuery.isEmptyObject( cache ) ) {
    
                // Support: Chrome <=35 - 45
                // Webkit & Blink performance suffers when deleting properties
                // from DOM nodes, so set to undefined instead
                // https://bugs.chromium.org/p/chromium/issues/detail?id=378607 (bug restricted)
                if ( owner.nodeType ) {
                    owner[ this.expando ] = undefined;
                } else {
                    delete owner[ this.expando ];
                }
            }
        },
        hasData: function( owner ) {
            var cache = owner[ this.expando ];
            return cache !== undefined && !jQuery.isEmptyObject( cache );
        }
    };
    var dataPriv = new Data();
    
    var dataUser = new Data();
    
    
    
    //	Implementation Summary
    //
    //	1. Enforce API surface and semantic compatibility with 1.9.x branch
    //	2. Improve the module's maintainability by reducing the storage
    //		paths to a single mechanism.
    //	3. Use the same single mechanism to support "private" and "user" data.
    //	4. _Never_ expose "private" data to user code (TODO: Drop _data, _removeData)
    //	5. Avoid exposing implementation details on user objects (eg. expando properties)
    //	6. Provide a clear path for implementation upgrade to WeakMap in 2014
    
    var rbrace = /^(?:\{[\w\W]*\}|\[[\w\W]*\])$/,
        rmultiDash = /[A-Z]/g;
    
    function getData( data ) {
        if ( data === "true" ) {
            return true;
        }
    
        if ( data === "false" ) {
            return false;
        }
    
        if ( data === "null" ) {
            return null;
        }
    
        // Only convert to a number if it doesn't change the string
        if ( data === +data + "" ) {
            return +data;
        }
    
        if ( rbrace.test( data ) ) {
            return JSON.parse( data );
        }
    
        return data;
    }
    
    function dataAttr( elem, key, data ) {
        var name;
    
        // If nothing was found internally, try to fetch any
        // data from the HTML5 data-* attribute
        if ( data === undefined && elem.nodeType === 1 ) {
            name = "data-" + key.replace( rmultiDash, "-$&" ).toLowerCase();
            data = elem.getAttribute( name );
    
            if ( typeof data === "string" ) {
                try {
                    data = getData( data );
                } catch ( e ) {}
    
                // Make sure we set the data so it isn't changed later
                dataUser.set( elem, key, data );
            } else {
                data = undefined;
            }
        }
        return data;
    }
    
    jQuery.extend( {
        hasData: function( elem ) {
            return dataUser.hasData( elem ) || dataPriv.hasData( elem );
        },
    
        data: function( elem, name, data ) {
            return dataUser.access( elem, name, data );
        },
    
        removeData: function( elem, name ) {
            dataUser.remove( elem, name );
        },
    
        // TODO: Now that all calls to _data and _removeData have been replaced
        // with direct calls to dataPriv methods, these can be deprecated.
        _data: function( elem, name, data ) {
            return dataPriv.access( elem, name, data );
        },
    
        _removeData: function( elem, name ) {
            dataPriv.remove( elem, name );
        }
    } );
    
    jQuery.fn.extend( {
        data: function( key, value ) {
            var i, name, data,
                elem = this[ 0 ],
                attrs = elem && elem.attributes;
    
            // Gets all values
            if ( key === undefined ) {
                if ( this.length ) {
                    data = dataUser.get( elem );
    
                    if ( elem.nodeType === 1 && !dataPriv.get( elem, "hasDataAttrs" ) ) {
                        i = attrs.length;
                        while ( i-- ) {
    
                            // Support: IE 11 only
                            // The attrs elements can be null (#14894)
                            if ( attrs[ i ] ) {
                                name = attrs[ i ].name;
                                if ( name.indexOf( "data-" ) === 0 ) {
                                    name = camelCase( name.slice( 5 ) );
                                    dataAttr( elem, name, data[ name ] );
                                }
                            }
                        }
                        dataPriv.set( elem, "hasDataAttrs", true );
                    }
                }
    
                return data;
            }
    
            // Sets multiple values
            if ( typeof key === "object" ) {
                return this.each( function() {
                    dataUser.set( this, key );
                } );
            }
    
            return access( this, function( value ) {
                var data;
    
                // The calling jQuery object (element matches) is not empty
                // (and therefore has an element appears at this[ 0 ]) and the
                // `value` parameter was not undefined. An empty jQuery object
                // will result in `undefined` for elem = this[ 0 ] which will
                // throw an exception if an attempt to read a data cache is made.
                if ( elem && value === undefined ) {
    
                    // Attempt to get data from the cache
                    // The key will always be camelCased in Data
                    data = dataUser.get( elem, key );
                    if ( data !== undefined ) {
                        return data;
                    }
    
                    // Attempt to "discover" the data in
                    // HTML5 custom data-* attrs
                    data = dataAttr( elem, key );
                    if ( data !== undefined ) {
                        return data;
                    }
    
                    // We tried really hard, but the data doesn't exist.
                    return;
                }
    
                // Set the data...
                this.each( function() {
    
                    // We always store the camelCased key
                    dataUser.set( this, key, value );
                } );
            }, null, value, arguments.length > 1, null, true );
        },
    
        removeData: function( key ) {
            return this.each( function() {
                dataUser.remove( this, key );
            } );
        }
    } );
    
    
    jQuery.extend( {
        queue: function( elem, type, data ) {
            var queue;
    
            if ( elem ) {
                type = ( type || "fx" ) + "queue";
                queue = dataPriv.get( elem, type );
    
                // Speed up dequeue by getting out quickly if this is just a lookup
                if ( data ) {
                    if ( !queue || Array.isArray( data ) ) {
                        queue = dataPriv.access( elem, type, jQuery.makeArray( data ) );
                    } else {
                        queue.push( data );
                    }
                }
                return queue || [];
            }
        },
    
        dequeue: function( elem, type ) {
            type = type || "fx";
    
            var queue = jQuery.queue( elem, type ),
                startLength = queue.length,
                fn = queue.shift(),
                hooks = jQuery._queueHooks( elem, type ),
                next = function() {
                    jQuery.dequeue( elem, type );
                };
    
            // If the fx queue is dequeued, always remove the progress sentinel
            if ( fn === "inprogress" ) {
                fn = queue.shift();
                startLength--;
            }
    
            if ( fn ) {
    
                // Add a progress sentinel to prevent the fx queue from being
                // automatically dequeued
                if ( type === "fx" ) {
                    queue.unshift( "inprogress" );
                }
    
                // Clear up the last queue stop function
                delete hooks.stop;
                fn.call( elem, next, hooks );
            }
    
            if ( !startLength && hooks ) {
                hooks.empty.fire();
            }
        },
    
        // Not public - generate a queueHooks object, or return the current one
        _queueHooks: function( elem, type ) {
            var key = type + "queueHooks";
            return dataPriv.get( elem, key ) || dataPriv.access( elem, key, {
                empty: jQuery.Callbacks( "once memory" ).add( function() {
                    dataPriv.remove( elem, [ type + "queue", key ] );
                } )
            } );
        }
    } );
    
    jQuery.fn.extend( {
        queue: function( type, data ) {
            var setter = 2;
    
            if ( typeof type !== "string" ) {
                data = type;
                type = "fx";
                setter--;
            }
    
            if ( arguments.length < setter ) {
                return jQuery.queue( this[ 0 ], type );
            }
    
            return data === undefined ?
                this :
                this.each( function() {
                    var queue = jQuery.queue( this, type, data );
    
                    // Ensure a hooks for this queue
                    jQuery._queueHooks( this, type );
    
                    if ( type === "fx" && queue[ 0 ] !== "inprogress" ) {
                        jQuery.dequeue( this, type );
                    }
                } );
        },
        dequeue: function( type ) {
            return this.each( function() {
                jQuery.dequeue( this, type );
            } );
        },
        clearQueue: function( type ) {
            return this.queue( type || "fx", [] );
        },
    
        // Get a promise resolved when queues of a certain type
        // are emptied (fx is the type by default)
        promise: function( type, obj ) {
            var tmp,
                count = 1,
                defer = jQuery.Deferred(),
                elements = this,
                i = this.length,
                resolve = function() {
                    if ( !( --count ) ) {
                        defer.resolveWith( elements, [ elements ] );
                    }
                };
    
            if ( typeof type !== "string" ) {
                obj = type;
                type = undefined;
            }
            type = type || "fx";
    
            while ( i-- ) {
                tmp = dataPriv.get( elements[ i ], type + "queueHooks" );
                if ( tmp && tmp.empty ) {
                    count++;
                    tmp.empty.add( resolve );
                }
            }
            resolve();
            return defer.promise( obj );
        }
    } );
    var pnum = ( /[+-]?(?:\d*\.|)\d+(?:[eE][+-]?\d+|)/ ).source;
    
    var rcssNum = new RegExp( "^(?:([+-])=|)(" + pnum + ")([a-z%]*)$", "i" );
    
    
    var cssExpand = [ "Top", "Right", "Bottom", "Left" ];
    
    var documentElement = document.documentElement;
    
    
    
        var isAttached = function( elem ) {
                return jQuery.contains( elem.ownerDocument, elem );
            },
            composed = { composed: true };
    
        // Support: IE 9 - 11+, Edge 12 - 18+, iOS 10.0 - 10.2 only
        // Check attachment across shadow DOM boundaries when possible (gh-3504)
        // Support: iOS 10.0-10.2 only
        // Early iOS 10 versions support `attachShadow` but not `getRootNode`,
        // leading to errors. We need to check for `getRootNode`.
        if ( documentElement.getRootNode ) {
            isAttached = function( elem ) {
                return jQuery.contains( elem.ownerDocument, elem ) ||
                    elem.getRootNode( composed ) === elem.ownerDocument;
            };
        }
    var isHiddenWithinTree = function( elem, el ) {
    
            // isHiddenWithinTree might be called from jQuery#filter function;
            // in that case, element will be second argument
            elem = el || elem;
    
            // Inline style trumps all
            return elem.style.display === "none" ||
                elem.style.display === "" &&
    
                // Otherwise, check computed style
                // Support: Firefox <=43 - 45
                // Disconnected elements can have computed display: none, so first confirm that elem is
                // in the document.
                isAttached( elem ) &&
    
                jQuery.css( elem, "display" ) === "none";
        };
    
    var swap = function( elem, options, callback, args ) {
        var ret, name,
            old = {};
    
        // Remember the old values, and insert the new ones
        for ( name in options ) {
            old[ name ] = elem.style[ name ];
            elem.style[ name ] = options[ name ];
        }
    
        ret = callback.apply( elem, args || [] );
    
        // Revert the old values
        for ( name in options ) {
            elem.style[ name ] = old[ name ];
        }
    
        return ret;
    };
    
    
    
    
    function adjustCSS( elem, prop, valueParts, tween ) {
        var adjusted, scale,
            maxIterations = 20,
            currentValue = tween ?
                function() {
                    return tween.cur();
                } :
                function() {
                    return jQuery.css( elem, prop, "" );
                },
            initial = currentValue(),
            unit = valueParts && valueParts[ 3 ] || ( jQuery.cssNumber[ prop ] ? "" : "px" ),
    
            // Starting value computation is required for potential unit mismatches
            initialInUnit = elem.nodeType &&
                ( jQuery.cssNumber[ prop ] || unit !== "px" && +initial ) &&
                rcssNum.exec( jQuery.css( elem, prop ) );
    
        if ( initialInUnit && initialInUnit[ 3 ] !== unit ) {
    
            // Support: Firefox <=54
            // Halve the iteration target value to prevent interference from CSS upper bounds (gh-2144)
            initial = initial / 2;
    
            // Trust units reported by jQuery.css
            unit = unit || initialInUnit[ 3 ];
    
            // Iteratively approximate from a nonzero starting point
            initialInUnit = +initial || 1;
    
            while ( maxIterations-- ) {
    
                // Evaluate and update our best guess (doubling guesses that zero out).
                // Finish if the scale equals or crosses 1 (making the old*new product non-positive).
                jQuery.style( elem, prop, initialInUnit + unit );
                if ( ( 1 - scale ) * ( 1 - ( scale = currentValue() / initial || 0.5 ) ) <= 0 ) {
                    maxIterations = 0;
                }
                initialInUnit = initialInUnit / scale;
    
            }
    
            initialInUnit = initialInUnit * 2;
            jQuery.style( elem, prop, initialInUnit + unit );
    
            // Make sure we update the tween properties later on
            valueParts = valueParts || [];
        }
    
        if ( valueParts ) {
            initialInUnit = +initialInUnit || +initial || 0;
    
            // Apply relative offset (+=/-=) if specified
            adjusted = valueParts[ 1 ] ?
                initialInUnit + ( valueParts[ 1 ] + 1 ) * valueParts[ 2 ] :
                +valueParts[ 2 ];
            if ( tween ) {
                tween.unit = unit;
                tween.start = initialInUnit;
                tween.end = adjusted;
            }
        }
        return adjusted;
    }
    
    
    var defaultDisplayMap = {};
    
    function getDefaultDisplay( elem ) {
        var temp,
            doc = elem.ownerDocument,
            nodeName = elem.nodeName,
            display = defaultDisplayMap[ nodeName ];
    
        if ( display ) {
            return display;
        }
    
        temp = doc.body.appendChild( doc.createElement( nodeName ) );
        display = jQuery.css( temp, "display" );
    
        temp.parentNode.removeChild( temp );
    
        if ( display === "none" ) {
            display = "block";
        }
        defaultDisplayMap[ nodeName ] = display;
    
        return display;
    }
    
    function showHide( elements, show ) {
        var display, elem,
            values = [],
            index = 0,
            length = elements.length;
    
        // Determine new display value for elements that need to change
        for ( ; index < length; index++ ) {
            elem = elements[ index ];
            if ( !elem.style ) {
                continue;
            }
    
            display = elem.style.display;
            if ( show ) {
    
                // Since we force visibility upon cascade-hidden elements, an immediate (and slow)
                // check is required in this first loop unless we have a nonempty display value (either
                // inline or about-to-be-restored)
                if ( display === "none" ) {
                    values[ index ] = dataPriv.get( elem, "display" ) || null;
                    if ( !values[ index ] ) {
                        elem.style.display = "";
                    }
                }
                if ( elem.style.display === "" && isHiddenWithinTree( elem ) ) {
                    values[ index ] = getDefaultDisplay( elem );
                }
            } else {
                if ( display !== "none" ) {
                    values[ index ] = "none";
    
                    // Remember what we're overwriting
                    dataPriv.set( elem, "display", display );
                }
            }
        }
    
        // Set the display of the elements in a second loop to avoid constant reflow
        for ( index = 0; index < length; index++ ) {
            if ( values[ index ] != null ) {
                elements[ index ].style.display = values[ index ];
            }
        }
    
        return elements;
    }
    
    jQuery.fn.extend( {
        show: function() {
            return showHide( this, true );
        },
        hide: function() {
            return showHide( this );
        },
        toggle: function( state ) {
            if ( typeof state === "boolean" ) {
                return state ? this.show() : this.hide();
            }
    
            return this.each( function() {
                if ( isHiddenWithinTree( this ) ) {
                    jQuery( this ).show();
                } else {
                    jQuery( this ).hide();
                }
            } );
        }
    } );
    var rcheckableType = ( /^(?:checkbox|radio)$/i );
    
    var rtagName = ( /<([a-z][^\/\0>\x20\t\r\n\f]*)/i );
    
    var rscriptType = ( /^$|^module$|\/(?:java|ecma)script/i );
    
    
    
    // We have to close these tags to support XHTML (#13200)
    var wrapMap = {
    
        // Support: IE <=9 only
        option: [ 1, "<select multiple='multiple'>", "</select>" ],
    
        // XHTML parsers do not magically insert elements in the
        // same way that tag soup parsers do. So we cannot shorten
        // this by omitting <tbody> or other required elements.
        thead: [ 1, "<table>", "</table>" ],
        col: [ 2, "<table><colgroup>", "</colgroup></table>" ],
        tr: [ 2, "<table><tbody>", "</tbody></table>" ],
        td: [ 3, "<table><tbody><tr>", "</tr></tbody></table>" ],
    
        _default: [ 0, "", "" ]
    };
    
    // Support: IE <=9 only
    wrapMap.optgroup = wrapMap.option;
    
    wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;
    wrapMap.th = wrapMap.td;
    
    
    function getAll( context, tag ) {
    
        // Support: IE <=9 - 11 only
        // Use typeof to avoid zero-argument method invocation on host objects (#15151)
        var ret;
    
        if ( typeof context.getElementsByTagName !== "undefined" ) {
            ret = context.getElementsByTagName( tag || "*" );
    
        } else if ( typeof context.querySelectorAll !== "undefined" ) {
            ret = context.querySelectorAll( tag || "*" );
    
        } else {
            ret = [];
        }
    
        if ( tag === undefined || tag && nodeName( context, tag ) ) {
            return jQuery.merge( [ context ], ret );
        }
    
        return ret;
    }
    
    
    // Mark scripts as having already been evaluated
    function setGlobalEval( elems, refElements ) {
        var i = 0,
            l = elems.length;
    
        for ( ; i < l; i++ ) {
            dataPriv.set(
                elems[ i ],
                "globalEval",
                !refElements || dataPriv.get( refElements[ i ], "globalEval" )
            );
        }
    }
    
    
    var rhtml = /<|&#?\w+;/;
    
    function buildFragment( elems, context, scripts, selection, ignored ) {
        var elem, tmp, tag, wrap, attached, j,
            fragment = context.createDocumentFragment(),
            nodes = [],
            i = 0,
            l = elems.length;
    
        for ( ; i < l; i++ ) {
            elem = elems[ i ];
    
            if ( elem || elem === 0 ) {
    
                // Add nodes directly
                if ( toType( elem ) === "object" ) {
    
                    // Support: Android <=4.0 only, PhantomJS 1 only
                    // push.apply(_, arraylike) throws on ancient WebKit
                    jQuery.merge( nodes, elem.nodeType ? [ elem ] : elem );
    
                // Convert non-html into a text node
                } else if ( !rhtml.test( elem ) ) {
                    nodes.push( context.createTextNode( elem ) );
    
                // Convert html into DOM nodes
                } else {
                    tmp = tmp || fragment.appendChild( context.createElement( "div" ) );
    
                    // Deserialize a standard representation
                    tag = ( rtagName.exec( elem ) || [ "", "" ] )[ 1 ].toLowerCase();
                    wrap = wrapMap[ tag ] || wrapMap._default;
                    tmp.innerHTML = wrap[ 1 ] + jQuery.htmlPrefilter( elem ) + wrap[ 2 ];
    
                    // Descend through wrappers to the right content
                    j = wrap[ 0 ];
                    while ( j-- ) {
                        tmp = tmp.lastChild;
                    }
    
                    // Support: Android <=4.0 only, PhantomJS 1 only
                    // push.apply(_, arraylike) throws on ancient WebKit
                    jQuery.merge( nodes, tmp.childNodes );
    
                    // Remember the top-level container
                    tmp = fragment.firstChild;
    
                    // Ensure the created nodes are orphaned (#12392)
                    tmp.textContent = "";
                }
            }
        }
    
        // Remove wrapper from fragment
        fragment.textContent = "";
    
        i = 0;
        while ( ( elem = nodes[ i++ ] ) ) {
    
            // Skip elements already in the context collection (trac-4087)
            if ( selection && jQuery.inArray( elem, selection ) > -1 ) {
                if ( ignored ) {
                    ignored.push( elem );
                }
                continue;
            }
    
            attached = isAttached( elem );
    
            // Append to fragment
            tmp = getAll( fragment.appendChild( elem ), "script" );
    
            // Preserve script evaluation history
            if ( attached ) {
                setGlobalEval( tmp );
            }
    
            // Capture executables
            if ( scripts ) {
                j = 0;
                while ( ( elem = tmp[ j++ ] ) ) {
                    if ( rscriptType.test( elem.type || "" ) ) {
                        scripts.push( elem );
                    }
                }
            }
        }
    
        return fragment;
    }
    
    
    ( function() {
        var fragment = document.createDocumentFragment(),
            div = fragment.appendChild( document.createElement( "div" ) ),
            input = document.createElement( "input" );
    
        // Support: Android 4.0 - 4.3 only
        // Check state lost if the name is set (#11217)
        // Support: Windows Web Apps (WWA)
        // `name` and `type` must use .setAttribute for WWA (#14901)
        input.setAttribute( "type", "radio" );
        input.setAttribute( "checked", "checked" );
        input.setAttribute( "name", "t" );
    
        div.appendChild( input );
    
        // Support: Android <=4.1 only
        // Older WebKit doesn't clone checked state correctly in fragments
        support.checkClone = div.cloneNode( true ).cloneNode( true ).lastChild.checked;
    
        // Support: IE <=11 only
        // Make sure textarea (and checkbox) defaultValue is properly cloned
        div.innerHTML = "<textarea>x</textarea>";
        support.noCloneChecked = !!div.cloneNode( true ).lastChild.defaultValue;
    } )();
    
    
    var
        rkeyEvent = /^key/,
        rmouseEvent = /^(?:mouse|pointer|contextmenu|drag|drop)|click/,
        rtypenamespace = /^([^.]*)(?:\.(.+)|)/;
    
    function returnTrue() {
        return true;
    }
    
    function returnFalse() {
        return false;
    }
    
    // Support: IE <=9 - 11+
    // focus() and blur() are asynchronous, except when they are no-op.
    // So expect focus to be synchronous when the element is already active,
    // and blur to be synchronous when the element is not already active.
    // (focus and blur are always synchronous in other supported browsers,
    // this just defines when we can count on it).
    function expectSync( elem, type ) {
        return ( elem === safeActiveElement() ) === ( type === "focus" );
    }
    
    // Support: IE <=9 only
    // Accessing document.activeElement can throw unexpectedly
    // https://bugs.jquery.com/ticket/13393
    function safeActiveElement() {
        try {
            return document.activeElement;
        } catch ( err ) { }
    }
    
    function on( elem, types, selector, data, fn, one ) {
        var origFn, type;
    
        // Types can be a map of types/handlers
        if ( typeof types === "object" ) {
    
            // ( types-Object, selector, data )
            if ( typeof selector !== "string" ) {
    
                // ( types-Object, data )
                data = data || selector;
                selector = undefined;
            }
            for ( type in types ) {
                on( elem, type, selector, data, types[ type ], one );
            }
            return elem;
        }
    
        if ( data == null && fn == null ) {
    
            // ( types, fn )
            fn = selector;
            data = selector = undefined;
        } else if ( fn == null ) {
            if ( typeof selector === "string" ) {
    
                // ( types, selector, fn )
                fn = data;
                data = undefined;
            } else {
    
                // ( types, data, fn )
                fn = data;
                data = selector;
                selector = undefined;
            }
        }
        if ( fn === false ) {
            fn = returnFalse;
        } else if ( !fn ) {
            return elem;
        }
    
        if ( one === 1 ) {
            origFn = fn;
            fn = function( event ) {
    
                // Can use an empty set, since event contains the info
                jQuery().off( event );
                return origFn.apply( this, arguments );
            };
    
            // Use same guid so caller can remove using origFn
            fn.guid = origFn.guid || ( origFn.guid = jQuery.guid++ );
        }
        return elem.each( function() {
            jQuery.event.add( this, types, fn, data, selector );
        } );
    }
    
    /*
     * Helper functions for managing events -- not part of the public interface.
     * Props to Dean Edwards' addEvent library for many of the ideas.
     */
    jQuery.event = {
    
        global: {},
    
        add: function( elem, types, handler, data, selector ) {
    
            var handleObjIn, eventHandle, tmp,
                events, t, handleObj,
                special, handlers, type, namespaces, origType,
                elemData = dataPriv.get( elem );
    
            // Don't attach events to noData or text/comment nodes (but allow plain objects)
            if ( !elemData ) {
                return;
            }
    
            // Caller can pass in an object of custom data in lieu of the handler
            if ( handler.handler ) {
                handleObjIn = handler;
                handler = handleObjIn.handler;
                selector = handleObjIn.selector;
            }
    
            // Ensure that invalid selectors throw exceptions at attach time
            // Evaluate against documentElement in case elem is a non-element node (e.g., document)
            if ( selector ) {
                jQuery.find.matchesSelector( documentElement, selector );
            }
    
            // Make sure that the handler has a unique ID, used to find/remove it later
            if ( !handler.guid ) {
                handler.guid = jQuery.guid++;
            }
    
            // Init the element's event structure and main handler, if this is the first
            if ( !( events = elemData.events ) ) {
                events = elemData.events = {};
            }
            if ( !( eventHandle = elemData.handle ) ) {
                eventHandle = elemData.handle = function( e ) {
    
                    // Discard the second event of a jQuery.event.trigger() and
                    // when an event is called after a page has unloaded
                    return typeof jQuery !== "undefined" && jQuery.event.triggered !== e.type ?
                        jQuery.event.dispatch.apply( elem, arguments ) : undefined;
                };
            }
    
            // Handle multiple events separated by a space
            types = ( types || "" ).match( rnothtmlwhite ) || [ "" ];
            t = types.length;
            while ( t-- ) {
                tmp = rtypenamespace.exec( types[ t ] ) || [];
                type = origType = tmp[ 1 ];
                namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort();
    
                // There *must* be a type, no attaching namespace-only handlers
                if ( !type ) {
                    continue;
                }
    
                // If event changes its type, use the special event handlers for the changed type
                special = jQuery.event.special[ type ] || {};
    
                // If selector defined, determine special event api type, otherwise given type
                type = ( selector ? special.delegateType : special.bindType ) || type;
    
                // Update special based on newly reset type
                special = jQuery.event.special[ type ] || {};
    
                // handleObj is passed to all event handlers
                handleObj = jQuery.extend( {
                    type: type,
                    origType: origType,
                    data: data,
                    handler: handler,
                    guid: handler.guid,
                    selector: selector,
                    needsContext: selector && jQuery.expr.match.needsContext.test( selector ),
                    namespace: namespaces.join( "." )
                }, handleObjIn );
    
                // Init the event handler queue if we're the first
                if ( !( handlers = events[ type ] ) ) {
                    handlers = events[ type ] = [];
                    handlers.delegateCount = 0;
    
                    // Only use addEventListener if the special events handler returns false
                    if ( !special.setup ||
                        special.setup.call( elem, data, namespaces, eventHandle ) === false ) {
    
                        if ( elem.addEventListener ) {
                            elem.addEventListener( type, eventHandle );
                        }
                    }
                }
    
                if ( special.add ) {
                    special.add.call( elem, handleObj );
    
                    if ( !handleObj.handler.guid ) {
                        handleObj.handler.guid = handler.guid;
                    }
                }
    
                // Add to the element's handler list, delegates in front
                if ( selector ) {
                    handlers.splice( handlers.delegateCount++, 0, handleObj );
                } else {
                    handlers.push( handleObj );
                }
    
                // Keep track of which events have ever been used, for event optimization
                jQuery.event.global[ type ] = true;
            }
    
        },
    
        // Detach an event or set of events from an element
        remove: function( elem, types, handler, selector, mappedTypes ) {
    
            var j, origCount, tmp,
                events, t, handleObj,
                special, handlers, type, namespaces, origType,
                elemData = dataPriv.hasData( elem ) && dataPriv.get( elem );
    
            if ( !elemData || !( events = elemData.events ) ) {
                return;
            }
    
            // Once for each type.namespace in types; type may be omitted
            types = ( types || "" ).match( rnothtmlwhite ) || [ "" ];
            t = types.length;
            while ( t-- ) {
                tmp = rtypenamespace.exec( types[ t ] ) || [];
                type = origType = tmp[ 1 ];
                namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort();
    
                // Unbind all events (on this namespace, if provided) for the element
                if ( !type ) {
                    for ( type in events ) {
                        jQuery.event.remove( elem, type + types[ t ], handler, selector, true );
                    }
                    continue;
                }
    
                special = jQuery.event.special[ type ] || {};
                type = ( selector ? special.delegateType : special.bindType ) || type;
                handlers = events[ type ] || [];
                tmp = tmp[ 2 ] &&
                    new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" );
    
                // Remove matching events
                origCount = j = handlers.length;
                while ( j-- ) {
                    handleObj = handlers[ j ];
    
                    if ( ( mappedTypes || origType === handleObj.origType ) &&
                        ( !handler || handler.guid === handleObj.guid ) &&
                        ( !tmp || tmp.test( handleObj.namespace ) ) &&
                        ( !selector || selector === handleObj.selector ||
                            selector === "**" && handleObj.selector ) ) {
                        handlers.splice( j, 1 );
    
                        if ( handleObj.selector ) {
                            handlers.delegateCount--;
                        }
                        if ( special.remove ) {
                            special.remove.call( elem, handleObj );
                        }
                    }
                }
    
                // Remove generic event handler if we removed something and no more handlers exist
                // (avoids potential for endless recursion during removal of special event handlers)
                if ( origCount && !handlers.length ) {
                    if ( !special.teardown ||
                        special.teardown.call( elem, namespaces, elemData.handle ) === false ) {
    
                        jQuery.removeEvent( elem, type, elemData.handle );
                    }
    
                    delete events[ type ];
                }
            }
    
            // Remove data and the expando if it's no longer used
            if ( jQuery.isEmptyObject( events ) ) {
                dataPriv.remove( elem, "handle events" );
            }
        },
    
        dispatch: function( nativeEvent ) {
    
            // Make a writable jQuery.Event from the native event object
            var event = jQuery.event.fix( nativeEvent );
    
            var i, j, ret, matched, handleObj, handlerQueue,
                args = new Array( arguments.length ),
                handlers = ( dataPriv.get( this, "events" ) || {} )[ event.type ] || [],
                special = jQuery.event.special[ event.type ] || {};
    
            // Use the fix-ed jQuery.Event rather than the (read-only) native event
            args[ 0 ] = event;
    
            for ( i = 1; i < arguments.length; i++ ) {
                args[ i ] = arguments[ i ];
            }
    
            event.delegateTarget = this;
    
            // Call the preDispatch hook for the mapped type, and let it bail if desired
            if ( special.preDispatch && special.preDispatch.call( this, event ) === false ) {
                return;
            }
    
            // Determine handlers
            handlerQueue = jQuery.event.handlers.call( this, event, handlers );
    
            // Run delegates first; they may want to stop propagation beneath us
            i = 0;
            while ( ( matched = handlerQueue[ i++ ] ) && !event.isPropagationStopped() ) {
                event.currentTarget = matched.elem;
    
                j = 0;
                while ( ( handleObj = matched.handlers[ j++ ] ) &&
                    !event.isImmediatePropagationStopped() ) {
    
                    // If the event is namespaced, then each handler is only invoked if it is
                    // specially universal or its namespaces are a superset of the event's.
                    if ( !event.rnamespace || handleObj.namespace === false ||
                        event.rnamespace.test( handleObj.namespace ) ) {
    
                        event.handleObj = handleObj;
                        event.data = handleObj.data;
    
                        ret = ( ( jQuery.event.special[ handleObj.origType ] || {} ).handle ||
                            handleObj.handler ).apply( matched.elem, args );
    
                        if ( ret !== undefined ) {
                            if ( ( event.result = ret ) === false ) {
                                event.preventDefault();
                                event.stopPropagation();
                            }
                        }
                    }
                }
            }
    
            // Call the postDispatch hook for the mapped type
            if ( special.postDispatch ) {
                special.postDispatch.call( this, event );
            }
    
            return event.result;
        },
    
        handlers: function( event, handlers ) {
            var i, handleObj, sel, matchedHandlers, matchedSelectors,
                handlerQueue = [],
                delegateCount = handlers.delegateCount,
                cur = event.target;
    
            // Find delegate handlers
            if ( delegateCount &&
    
                // Support: IE <=9
                // Black-hole SVG <use> instance trees (trac-13180)
                cur.nodeType &&
    
                // Support: Firefox <=42
                // Suppress spec-violating clicks indicating a non-primary pointer button (trac-3861)
                // https://www.w3.org/TR/DOM-Level-3-Events/#event-type-click
                // Support: IE 11 only
                // ...but not arrow key "clicks" of radio inputs, which can have `button` -1 (gh-2343)
                !( event.type === "click" && event.button >= 1 ) ) {
    
                for ( ; cur !== this; cur = cur.parentNode || this ) {
    
                    // Don't check non-elements (#13208)
                    // Don't process clicks on disabled elements (#6911, #8165, #11382, #11764)
                    if ( cur.nodeType === 1 && !( event.type === "click" && cur.disabled === true ) ) {
                        matchedHandlers = [];
                        matchedSelectors = {};
                        for ( i = 0; i < delegateCount; i++ ) {
                            handleObj = handlers[ i ];
    
                            // Don't conflict with Object.prototype properties (#13203)
                            sel = handleObj.selector + " ";
    
                            if ( matchedSelectors[ sel ] === undefined ) {
                                matchedSelectors[ sel ] = handleObj.needsContext ?
                                    jQuery( sel, this ).index( cur ) > -1 :
                                    jQuery.find( sel, this, null, [ cur ] ).length;
                            }
                            if ( matchedSelectors[ sel ] ) {
                                matchedHandlers.push( handleObj );
                            }
                        }
                        if ( matchedHandlers.length ) {
                            handlerQueue.push( { elem: cur, handlers: matchedHandlers } );
                        }
                    }
                }
            }
    
            // Add the remaining (directly-bound) handlers
            cur = this;
            if ( delegateCount < handlers.length ) {
                handlerQueue.push( { elem: cur, handlers: handlers.slice( delegateCount ) } );
            }
    
            return handlerQueue;
        },
    
        addProp: function( name, hook ) {
            Object.defineProperty( jQuery.Event.prototype, name, {
                enumerable: true,
                configurable: true,
    
                get: isFunction( hook ) ?
                    function() {
                        if ( this.originalEvent ) {
                                return hook( this.originalEvent );
                        }
                    } :
                    function() {
                        if ( this.originalEvent ) {
                                return this.originalEvent[ name ];
                        }
                    },
    
                set: function( value ) {
                    Object.defineProperty( this, name, {
                        enumerable: true,
                        configurable: true,
                        writable: true,
                        value: value
                    } );
                }
            } );
        },
    
        fix: function( originalEvent ) {
            return originalEvent[ jQuery.expando ] ?
                originalEvent :
                new jQuery.Event( originalEvent );
        },
    
        special: {
            load: {
    
                // Prevent triggered image.load events from bubbling to window.load
                noBubble: true
            },
            click: {
    
                // Utilize native event to ensure correct state for checkable inputs
                setup: function( data ) {
    
                    // For mutual compressibility with _default, replace `this` access with a local var.
                    // `|| data` is dead code meant only to preserve the variable through minification.
                    var el = this || data;
    
                    // Claim the first handler
                    if ( rcheckableType.test( el.type ) &&
                        el.click && nodeName( el, "input" ) ) {
    
                        // dataPriv.set( el, "click", ... )
                        leverageNative( el, "click", returnTrue );
                    }
    
                    // Return false to allow normal processing in the caller
                    return false;
                },
                trigger: function( data ) {
    
                    // For mutual compressibility with _default, replace `this` access with a local var.
                    // `|| data` is dead code meant only to preserve the variable through minification.
                    var el = this || data;
    
                    // Force setup before triggering a click
                    if ( rcheckableType.test( el.type ) &&
                        el.click && nodeName( el, "input" ) ) {
    
                        leverageNative( el, "click" );
                    }
    
                    // Return non-false to allow normal event-path propagation
                    return true;
                },
    
                // For cross-browser consistency, suppress native .click() on links
                // Also prevent it if we're currently inside a leveraged native-event stack
                _default: function( event ) {
                    var target = event.target;
                    return rcheckableType.test( target.type ) &&
                        target.click && nodeName( target, "input" ) &&
                        dataPriv.get( target, "click" ) ||
                        nodeName( target, "a" );
                }
            },
    
            beforeunload: {
                postDispatch: function( event ) {
    
                    // Support: Firefox 20+
                    // Firefox doesn't alert if the returnValue field is not set.
                    if ( event.result !== undefined && event.originalEvent ) {
                        event.originalEvent.returnValue = event.result;
                    }
                }
            }
        }
    };
    
    // Ensure the presence of an event listener that handles manually-triggered
    // synthetic events by interrupting progress until reinvoked in response to
    // *native* events that it fires directly, ensuring that state changes have
    // already occurred before other listeners are invoked.
    function leverageNative( el, type, expectSync ) {
    
        // Missing expectSync indicates a trigger call, which must force setup through jQuery.event.add
        if ( !expectSync ) {
            if ( dataPriv.get( el, type ) === undefined ) {
                jQuery.event.add( el, type, returnTrue );
            }
            return;
        }
    
        // Register the controller as a special universal handler for all event namespaces
        dataPriv.set( el, type, false );
        jQuery.event.add( el, type, {
            namespace: false,
            handler: function( event ) {
                var notAsync, result,
                    saved = dataPriv.get( this, type );
    
                if ( ( event.isTrigger & 1 ) && this[ type ] ) {
    
                    // Interrupt processing of the outer synthetic .trigger()ed event
                    // Saved data should be false in such cases, but might be a leftover capture object
                    // from an async native handler (gh-4350)
                    if ( !saved.length ) {
    
                        // Store arguments for use when handling the inner native event
                        // There will always be at least one argument (an event object), so this array
                        // will not be confused with a leftover capture object.
                        saved = slice.call( arguments );
                        dataPriv.set( this, type, saved );
    
                        // Trigger the native event and capture its result
                        // Support: IE <=9 - 11+
                        // focus() and blur() are asynchronous
                        notAsync = expectSync( this, type );
                        this[ type ]();
                        result = dataPriv.get( this, type );
                        if ( saved !== result || notAsync ) {
                            dataPriv.set( this, type, false );
                        } else {
                            result = {};
                        }
                        if ( saved !== result ) {
    
                            // Cancel the outer synthetic event
                            event.stopImmediatePropagation();
                            event.preventDefault();
                            return result.value;
                        }
    
                    // If this is an inner synthetic event for an event with a bubbling surrogate
                    // (focus or blur), assume that the surrogate already propagated from triggering the
                    // native event and prevent that from happening again here.
                    // This technically gets the ordering wrong w.r.t. to `.trigger()` (in which the
                    // bubbling surrogate propagates *after* the non-bubbling base), but that seems
                    // less bad than duplication.
                    } else if ( ( jQuery.event.special[ type ] || {} ).delegateType ) {
                        event.stopPropagation();
                    }
    
                // If this is a native event triggered above, everything is now in order
                // Fire an inner synthetic event with the original arguments
                } else if ( saved.length ) {
    
                    // ...and capture the result
                    dataPriv.set( this, type, {
                        value: jQuery.event.trigger(
    
                            // Support: IE <=9 - 11+
                            // Extend with the prototype to reset the above stopImmediatePropagation()
                            jQuery.extend( saved[ 0 ], jQuery.Event.prototype ),
                            saved.slice( 1 ),
                            this
                        )
                    } );
    
                    // Abort handling of the native event
                    event.stopImmediatePropagation();
                }
            }
        } );
    }
    
    jQuery.removeEvent = function( elem, type, handle ) {
    
        // This "if" is needed for plain objects
        if ( elem.removeEventListener ) {
            elem.removeEventListener( type, handle );
        }
    };
    
    jQuery.Event = function( src, props ) {
    
        // Allow instantiation without the 'new' keyword
        if ( !( this instanceof jQuery.Event ) ) {
            return new jQuery.Event( src, props );
        }
    
        // Event object
        if ( src && src.type ) {
            this.originalEvent = src;
            this.type = src.type;
    
            // Events bubbling up the document may have been marked as prevented
            // by a handler lower down the tree; reflect the correct value.
            this.isDefaultPrevented = src.defaultPrevented ||
                    src.defaultPrevented === undefined &&
    
                    // Support: Android <=2.3 only
                    src.returnValue === false ?
                returnTrue :
                returnFalse;
    
            // Create target properties
            // Support: Safari <=6 - 7 only
            // Target should not be a text node (#504, #13143)
            this.target = ( src.target && src.target.nodeType === 3 ) ?
                src.target.parentNode :
                src.target;
    
            this.currentTarget = src.currentTarget;
            this.relatedTarget = src.relatedTarget;
    
        // Event type
        } else {
            this.type = src;
        }
    
        // Put explicitly provided properties onto the event object
        if ( props ) {
            jQuery.extend( this, props );
        }
    
        // Create a timestamp if incoming event doesn't have one
        this.timeStamp = src && src.timeStamp || Date.now();
    
        // Mark it as fixed
        this[ jQuery.expando ] = true;
    };
    
    // jQuery.Event is based on DOM3 Events as specified by the ECMAScript Language Binding
    // https://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html
    jQuery.Event.prototype = {
        constructor: jQuery.Event,
        isDefaultPrevented: returnFalse,
        isPropagationStopped: returnFalse,
        isImmediatePropagationStopped: returnFalse,
        isSimulated: false,
    
        preventDefault: function() {
            var e = this.originalEvent;
    
            this.isDefaultPrevented = returnTrue;
    
            if ( e && !this.isSimulated ) {
                e.preventDefault();
            }
        },
        stopPropagation: function() {
            var e = this.originalEvent;
    
            this.isPropagationStopped = returnTrue;
    
            if ( e && !this.isSimulated ) {
                e.stopPropagation();
            }
        },
        stopImmediatePropagation: function() {
            var e = this.originalEvent;
    
            this.isImmediatePropagationStopped = returnTrue;
    
            if ( e && !this.isSimulated ) {
                e.stopImmediatePropagation();
            }
    
            this.stopPropagation();
        }
    };
    
    // Includes all common event props including KeyEvent and MouseEvent specific props
    jQuery.each( {
        altKey: true,
        bubbles: true,
        cancelable: true,
        changedTouches: true,
        ctrlKey: true,
        detail: true,
        eventPhase: true,
        metaKey: true,
        pageX: true,
        pageY: true,
        shiftKey: true,
        view: true,
        "char": true,
        code: true,
        charCode: true,
        key: true,
        keyCode: true,
        button: true,
        buttons: true,
        clientX: true,
        clientY: true,
        offsetX: true,
        offsetY: true,
        pointerId: true,
        pointerType: true,
        screenX: true,
        screenY: true,
        targetTouches: true,
        toElement: true,
        touches: true,
    
        which: function( event ) {
            var button = event.button;
    
            // Add which for key events
            if ( event.which == null && rkeyEvent.test( event.type ) ) {
                return event.charCode != null ? event.charCode : event.keyCode;
            }
    
            // Add which for click: 1 === left; 2 === middle; 3 === right
            if ( !event.which && button !== undefined && rmouseEvent.test( event.type ) ) {
                if ( button & 1 ) {
                    return 1;
                }
    
                if ( button & 2 ) {
                    return 3;
                }
    
                if ( button & 4 ) {
                    return 2;
                }
    
                return 0;
            }
    
            return event.which;
        }
    }, jQuery.event.addProp );
    
    jQuery.each( { focus: "focusin", blur: "focusout" }, function( type, delegateType ) {
        jQuery.event.special[ type ] = {
    
            // Utilize native event if possible so blur/focus sequence is correct
            setup: function() {
    
                // Claim the first handler
                // dataPriv.set( this, "focus", ... )
                // dataPriv.set( this, "blur", ... )
                leverageNative( this, type, expectSync );
    
                // Return false to allow normal processing in the caller
                return false;
            },
            trigger: function() {
    
                // Force setup before trigger
                leverageNative( this, type );
    
                // Return non-false to allow normal event-path propagation
                return true;
            },
    
            delegateType: delegateType
        };
    } );
    
    // Create mouseenter/leave events using mouseover/out and event-time checks
    // so that event delegation works in jQuery.
    // Do the same for pointerenter/pointerleave and pointerover/pointerout
    //
    // Support: Safari 7 only
    // Safari sends mouseenter too often; see:
    // https://bugs.chromium.org/p/chromium/issues/detail?id=470258
    // for the description of the bug (it existed in older Chrome versions as well).
    jQuery.each( {
        mouseenter: "mouseover",
        mouseleave: "mouseout",
        pointerenter: "pointerover",
        pointerleave: "pointerout"
    }, function( orig, fix ) {
        jQuery.event.special[ orig ] = {
            delegateType: fix,
            bindType: fix,
    
            handle: function( event ) {
                var ret,
                    target = this,
                    related = event.relatedTarget,
                    handleObj = event.handleObj;
    
                // For mouseenter/leave call the handler if related is outside the target.
                // NB: No relatedTarget if the mouse left/entered the browser window
                if ( !related || ( related !== target && !jQuery.contains( target, related ) ) ) {
                    event.type = handleObj.origType;
                    ret = handleObj.handler.apply( this, arguments );
                    event.type = fix;
                }
                return ret;
            }
        };
    } );
    
    jQuery.fn.extend( {
    
        on: function( types, selector, data, fn ) {
            return on( this, types, selector, data, fn );
        },
        one: function( types, selector, data, fn ) {
            return on( this, types, selector, data, fn, 1 );
        },
        off: function( types, selector, fn ) {
            var handleObj, type;
            if ( types && types.preventDefault && types.handleObj ) {
    
                // ( event )  dispatched jQuery.Event
                handleObj = types.handleObj;
                jQuery( types.delegateTarget ).off(
                    handleObj.namespace ?
                        handleObj.origType + "." + handleObj.namespace :
                        handleObj.origType,
                    handleObj.selector,
                    handleObj.handler
                );
                return this;
            }
            if ( typeof types === "object" ) {
    
                // ( types-object [, selector] )
                for ( type in types ) {
                    this.off( type, selector, types[ type ] );
                }
                return this;
            }
            if ( selector === false || typeof selector === "function" ) {
    
                // ( types [, fn] )
                fn = selector;
                selector = undefined;
            }
            if ( fn === false ) {
                fn = returnFalse;
            }
            return this.each( function() {
                jQuery.event.remove( this, types, fn, selector );
            } );
        }
    } );
    
    
    var
    
        /* eslint-disable max-len */
    
        // See https://github.com/eslint/eslint/issues/3229
        rxhtmlTag = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([a-z][^\/\0>\x20\t\r\n\f]*)[^>]*)\/>/gi,
    
        /* eslint-enable */
    
        // Support: IE <=10 - 11, Edge 12 - 13 only
        // In IE/Edge using regex groups here causes severe slowdowns.
        // See https://connect.microsoft.com/IE/feedback/details/1736512/
        rnoInnerhtml = /<script|<style|<link/i,
    
        // checked="checked" or checked
        rchecked = /checked\s*(?:[^=]|=\s*.checked.)/i,
        rcleanScript = /^\s*<!(?:\[CDATA\[|--)|(?:\]\]|--)>\s*$/g;
    
    // Prefer a tbody over its parent table for containing new rows
    function manipulationTarget( elem, content ) {
        if ( nodeName( elem, "table" ) &&
            nodeName( content.nodeType !== 11 ? content : content.firstChild, "tr" ) ) {
    
            return jQuery( elem ).children( "tbody" )[ 0 ] || elem;
        }
    
        return elem;
    }
    
    // Replace/restore the type attribute of script elements for safe DOM manipulation
    function disableScript( elem ) {
        elem.type = ( elem.getAttribute( "type" ) !== null ) + "/" + elem.type;
        return elem;
    }
    function restoreScript( elem ) {
        if ( ( elem.type || "" ).slice( 0, 5 ) === "true/" ) {
            elem.type = elem.type.slice( 5 );
        } else {
            elem.removeAttribute( "type" );
        }
    
        return elem;
    }
    
    function cloneCopyEvent( src, dest ) {
        var i, l, type, pdataOld, pdataCur, udataOld, udataCur, events;
    
        if ( dest.nodeType !== 1 ) {
            return;
        }
    
        // 1. Copy private data: events, handlers, etc.
        if ( dataPriv.hasData( src ) ) {
            pdataOld = dataPriv.access( src );
            pdataCur = dataPriv.set( dest, pdataOld );
            events = pdataOld.events;
    
            if ( events ) {
                delete pdataCur.handle;
                pdataCur.events = {};
    
                for ( type in events ) {
                    for ( i = 0, l = events[ type ].length; i < l; i++ ) {
                        jQuery.event.add( dest, type, events[ type ][ i ] );
                    }
                }
            }
        }
    
        // 2. Copy user data
        if ( dataUser.hasData( src ) ) {
            udataOld = dataUser.access( src );
            udataCur = jQuery.extend( {}, udataOld );
    
            dataUser.set( dest, udataCur );
        }
    }
    
    // Fix IE bugs, see support tests
    function fixInput( src, dest ) {
        var nodeName = dest.nodeName.toLowerCase();
    
        // Fails to persist the checked state of a cloned checkbox or radio button.
        if ( nodeName === "input" && rcheckableType.test( src.type ) ) {
            dest.checked = src.checked;
    
        // Fails to return the selected option to the default selected state when cloning options
        } else if ( nodeName === "input" || nodeName === "textarea" ) {
            dest.defaultValue = src.defaultValue;
        }
    }
    
    function domManip( collection, args, callback, ignored ) {
    
        // Flatten any nested arrays
        args = concat.apply( [], args );
    
        var fragment, first, scripts, hasScripts, node, doc,
            i = 0,
            l = collection.length,
            iNoClone = l - 1,
            value = args[ 0 ],
            valueIsFunction = isFunction( value );
    
        // We can't cloneNode fragments that contain checked, in WebKit
        if ( valueIsFunction ||
                ( l > 1 && typeof value === "string" &&
                    !support.checkClone && rchecked.test( value ) ) ) {
            return collection.each( function( index ) {
                var self = collection.eq( index );
                if ( valueIsFunction ) {
                    args[ 0 ] = value.call( this, index, self.html() );
                }
                domManip( self, args, callback, ignored );
            } );
        }
    
        if ( l ) {
            fragment = buildFragment( args, collection[ 0 ].ownerDocument, false, collection, ignored );
            first = fragment.firstChild;
    
            if ( fragment.childNodes.length === 1 ) {
                fragment = first;
            }
    
            // Require either new content or an interest in ignored elements to invoke the callback
            if ( first || ignored ) {
                scripts = jQuery.map( getAll( fragment, "script" ), disableScript );
                hasScripts = scripts.length;
    
                // Use the original fragment for the last item
                // instead of the first because it can end up
                // being emptied incorrectly in certain situations (#8070).
                for ( ; i < l; i++ ) {
                    node = fragment;
    
                    if ( i !== iNoClone ) {
                        node = jQuery.clone( node, true, true );
    
                        // Keep references to cloned scripts for later restoration
                        if ( hasScripts ) {
    
                            // Support: Android <=4.0 only, PhantomJS 1 only
                            // push.apply(_, arraylike) throws on ancient WebKit
                            jQuery.merge( scripts, getAll( node, "script" ) );
                        }
                    }
    
                    callback.call( collection[ i ], node, i );
                }
    
                if ( hasScripts ) {
                    doc = scripts[ scripts.length - 1 ].ownerDocument;
    
                    // Reenable scripts
                    jQuery.map( scripts, restoreScript );
    
                    // Evaluate executable scripts on first document insertion
                    for ( i = 0; i < hasScripts; i++ ) {
                        node = scripts[ i ];
                        if ( rscriptType.test( node.type || "" ) &&
                            !dataPriv.access( node, "globalEval" ) &&
                            jQuery.contains( doc, node ) ) {
    
                            if ( node.src && ( node.type || "" ).toLowerCase()  !== "module" ) {
    
                                // Optional AJAX dependency, but won't run scripts if not present
                                if ( jQuery._evalUrl && !node.noModule ) {
                                    jQuery._evalUrl( node.src, {
                                        nonce: node.nonce || node.getAttribute( "nonce" )
                                    } );
                                }
                            } else {
                                DOMEval( node.textContent.replace( rcleanScript, "" ), node, doc );
                            }
                        }
                    }
                }
            }
        }
    
        return collection;
    }
    
    function remove( elem, selector, keepData ) {
        var node,
            nodes = selector ? jQuery.filter( selector, elem ) : elem,
            i = 0;
    
        for ( ; ( node = nodes[ i ] ) != null; i++ ) {
            if ( !keepData && node.nodeType === 1 ) {
                jQuery.cleanData( getAll( node ) );
            }
    
            if ( node.parentNode ) {
                if ( keepData && isAttached( node ) ) {
                    setGlobalEval( getAll( node, "script" ) );
                }
                node.parentNode.removeChild( node );
            }
        }
    
        return elem;
    }
    
    jQuery.extend( {
        htmlPrefilter: function( html ) {
            return html.replace( rxhtmlTag, "<$1></$2>" );
        },
    
        clone: function( elem, dataAndEvents, deepDataAndEvents ) {
            var i, l, srcElements, destElements,
                clone = elem.cloneNode( true ),
                inPage = isAttached( elem );
    
            // Fix IE cloning issues
            if ( !support.noCloneChecked && ( elem.nodeType === 1 || elem.nodeType === 11 ) &&
                    !jQuery.isXMLDoc( elem ) ) {
    
                // We eschew Sizzle here for performance reasons: https://jsperf.com/getall-vs-sizzle/2
                destElements = getAll( clone );
                srcElements = getAll( elem );
    
                for ( i = 0, l = srcElements.length; i < l; i++ ) {
                    fixInput( srcElements[ i ], destElements[ i ] );
                }
            }
    
            // Copy the events from the original to the clone
            if ( dataAndEvents ) {
                if ( deepDataAndEvents ) {
                    srcElements = srcElements || getAll( elem );
                    destElements = destElements || getAll( clone );
    
                    for ( i = 0, l = srcElements.length; i < l; i++ ) {
                        cloneCopyEvent( srcElements[ i ], destElements[ i ] );
                    }
                } else {
                    cloneCopyEvent( elem, clone );
                }
            }
    
            // Preserve script evaluation history
            destElements = getAll( clone, "script" );
            if ( destElements.length > 0 ) {
                setGlobalEval( destElements, !inPage && getAll( elem, "script" ) );
            }
    
            // Return the cloned set
            return clone;
        },
    
        cleanData: function( elems ) {
            var data, elem, type,
                special = jQuery.event.special,
                i = 0;
    
            for ( ; ( elem = elems[ i ] ) !== undefined; i++ ) {
                if ( acceptData( elem ) ) {
                    if ( ( data = elem[ dataPriv.expando ] ) ) {
                        if ( data.events ) {
                            for ( type in data.events ) {
                                if ( special[ type ] ) {
                                    jQuery.event.remove( elem, type );
    
                                // This is a shortcut to avoid jQuery.event.remove's overhead
                                } else {
                                    jQuery.removeEvent( elem, type, data.handle );
                                }
                            }
                        }
    
                        // Support: Chrome <=35 - 45+
                        // Assign undefined instead of using delete, see Data#remove
                        elem[ dataPriv.expando ] = undefined;
                    }
                    if ( elem[ dataUser.expando ] ) {
    
                        // Support: Chrome <=35 - 45+
                        // Assign undefined instead of using delete, see Data#remove
                        elem[ dataUser.expando ] = undefined;
                    }
                }
            }
        }
    } );
    
    jQuery.fn.extend( {
        detach: function( selector ) {
            return remove( this, selector, true );
        },
    
        remove: function( selector ) {
            return remove( this, selector );
        },
    
        text: function( value ) {
            return access( this, function( value ) {
                return value === undefined ?
                    jQuery.text( this ) :
                    this.empty().each( function() {
                        if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
                            this.textContent = value;
                        }
                    } );
            }, null, value, arguments.length );
        },
    
        append: function() {
            return domManip( this, arguments, function( elem ) {
                if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
                    var target = manipulationTarget( this, elem );
                    target.appendChild( elem );
                }
            } );
        },
    
        prepend: function() {
            return domManip( this, arguments, function( elem ) {
                if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
                    var target = manipulationTarget( this, elem );
                    target.insertBefore( elem, target.firstChild );
                }
            } );
        },
    
        before: function() {
            return domManip( this, arguments, function( elem ) {
                if ( this.parentNode ) {
                    this.parentNode.insertBefore( elem, this );
                }
            } );
        },
    
        after: function() {
            return domManip( this, arguments, function( elem ) {
                if ( this.parentNode ) {
                    this.parentNode.insertBefore( elem, this.nextSibling );
                }
            } );
        },
    
        empty: function() {
            var elem,
                i = 0;
    
            for ( ; ( elem = this[ i ] ) != null; i++ ) {
                if ( elem.nodeType === 1 ) {
    
                    // Prevent memory leaks
                    jQuery.cleanData( getAll( elem, false ) );
    
                    // Remove any remaining nodes
                    elem.textContent = "";
                }
            }
    
            return this;
        },
    
        clone: function( dataAndEvents, deepDataAndEvents ) {
            dataAndEvents = dataAndEvents == null ? false : dataAndEvents;
            deepDataAndEvents = deepDataAndEvents == null ? dataAndEvents : deepDataAndEvents;
    
            return this.map( function() {
                return jQuery.clone( this, dataAndEvents, deepDataAndEvents );
            } );
        },
    
        html: function( value ) {
            return access( this, function( value ) {
                var elem = this[ 0 ] || {},
                    i = 0,
                    l = this.length;
    
                if ( value === undefined && elem.nodeType === 1 ) {
                    return elem.innerHTML;
                }
    
                // See if we can take a shortcut and just use innerHTML
                if ( typeof value === "string" && !rnoInnerhtml.test( value ) &&
                    !wrapMap[ ( rtagName.exec( value ) || [ "", "" ] )[ 1 ].toLowerCase() ] ) {
    
                    value = jQuery.htmlPrefilter( value );
    
                    try {
                        for ( ; i < l; i++ ) {
                            elem = this[ i ] || {};
    
                            // Remove element nodes and prevent memory leaks
                            if ( elem.nodeType === 1 ) {
                                jQuery.cleanData( getAll( elem, false ) );
                                elem.innerHTML = value;
                            }
                        }
    
                        elem = 0;
    
                    // If using innerHTML throws an exception, use the fallback method
                    } catch ( e ) {}
                }
    
                if ( elem ) {
                    this.empty().append( value );
                }
            }, null, value, arguments.length );
        },
    
        replaceWith: function() {
            var ignored = [];
    
            // Make the changes, replacing each non-ignored context element with the new content
            return domManip( this, arguments, function( elem ) {
                var parent = this.parentNode;
    
                if ( jQuery.inArray( this, ignored ) < 0 ) {
                    jQuery.cleanData( getAll( this ) );
                    if ( parent ) {
                        parent.replaceChild( elem, this );
                    }
                }
    
            // Force callback invocation
            }, ignored );
        }
    } );
    
    jQuery.each( {
        appendTo: "append",
        prependTo: "prepend",
        insertBefore: "before",
        insertAfter: "after",
        replaceAll: "replaceWith"
    }, function( name, original ) {
        jQuery.fn[ name ] = function( selector ) {
            var elems,
                ret = [],
                insert = jQuery( selector ),
                last = insert.length - 1,
                i = 0;
    
            for ( ; i <= last; i++ ) {
                elems = i === last ? this : this.clone( true );
                jQuery( insert[ i ] )[ original ]( elems );
    
                // Support: Android <=4.0 only, PhantomJS 1 only
                // .get() because push.apply(_, arraylike) throws on ancient WebKit
                push.apply( ret, elems.get() );
            }
    
            return this.pushStack( ret );
        };
    } );
    var rnumnonpx = new RegExp( "^(" + pnum + ")(?!px)[a-z%]+$", "i" );
    
    var getStyles = function( elem ) {
    
            // Support: IE <=11 only, Firefox <=30 (#15098, #14150)
            // IE throws on elements created in popups
            // FF meanwhile throws on frame elements through "defaultView.getComputedStyle"
            var view = elem.ownerDocument.defaultView;
    
            if ( !view || !view.opener ) {
                view = window;
            }
    
            return view.getComputedStyle( elem );
        };
    
    var rboxStyle = new RegExp( cssExpand.join( "|" ), "i" );
    
    
    
    ( function() {
    
        // Executing both pixelPosition & boxSizingReliable tests require only one layout
        // so they're executed at the same time to save the second computation.
        function computeStyleTests() {
    
            // This is a singleton, we need to execute it only once
            if ( !div ) {
                return;
            }
    
            container.style.cssText = "position:absolute;left:-11111px;width:60px;" +
                "margin-top:1px;padding:0;border:0";
            div.style.cssText =
                "position:relative;display:block;box-sizing:border-box;overflow:scroll;" +
                "margin:auto;border:1px;padding:1px;" +
                "width:60%;top:1%";
            documentElement.appendChild( container ).appendChild( div );
    
            var divStyle = window.getComputedStyle( div );
            pixelPositionVal = divStyle.top !== "1%";
    
            // Support: Android 4.0 - 4.3 only, Firefox <=3 - 44
            reliableMarginLeftVal = roundPixelMeasures( divStyle.marginLeft ) === 12;
    
            // Support: Android 4.0 - 4.3 only, Safari <=9.1 - 10.1, iOS <=7.0 - 9.3
            // Some styles come back with percentage values, even though they shouldn't
            div.style.right = "60%";
            pixelBoxStylesVal = roundPixelMeasures( divStyle.right ) === 36;
    
            // Support: IE 9 - 11 only
            // Detect misreporting of content dimensions for box-sizing:border-box elements
            boxSizingReliableVal = roundPixelMeasures( divStyle.width ) === 36;
    
            // Support: IE 9 only
            // Detect overflow:scroll screwiness (gh-3699)
            // Support: Chrome <=64
            // Don't get tricked when zoom affects offsetWidth (gh-4029)
            div.style.position = "absolute";
            scrollboxSizeVal = roundPixelMeasures( div.offsetWidth / 3 ) === 12;
    
            documentElement.removeChild( container );
    
            // Nullify the div so it wouldn't be stored in the memory and
            // it will also be a sign that checks already performed
            div = null;
        }
    
        function roundPixelMeasures( measure ) {
            return Math.round( parseFloat( measure ) );
        }
    
        var pixelPositionVal, boxSizingReliableVal, scrollboxSizeVal, pixelBoxStylesVal,
            reliableMarginLeftVal,
            container = document.createElement( "div" ),
            div = document.createElement( "div" );
    
        // Finish early in limited (non-browser) environments
        if ( !div.style ) {
            return;
        }
    
        // Support: IE <=9 - 11 only
        // Style of cloned element affects source element cloned (#8908)
        div.style.backgroundClip = "content-box";
        div.cloneNode( true ).style.backgroundClip = "";
        support.clearCloneStyle = div.style.backgroundClip === "content-box";
    
        jQuery.extend( support, {
            boxSizingReliable: function() {
                computeStyleTests();
                return boxSizingReliableVal;
            },
            pixelBoxStyles: function() {
                computeStyleTests();
                return pixelBoxStylesVal;
            },
            pixelPosition: function() {
                computeStyleTests();
                return pixelPositionVal;
            },
            reliableMarginLeft: function() {
                computeStyleTests();
                return reliableMarginLeftVal;
            },
            scrollboxSize: function() {
                computeStyleTests();
                return scrollboxSizeVal;
            }
        } );
    } )();
    
    
    function curCSS( elem, name, computed ) {
        var width, minWidth, maxWidth, ret,
    
            // Support: Firefox 51+
            // Retrieving style before computed somehow
            // fixes an issue with getting wrong values
            // on detached elements
            style = elem.style;
    
        computed = computed || getStyles( elem );
    
        // getPropertyValue is needed for:
        //   .css('filter') (IE 9 only, #12537)
        //   .css('--customProperty) (#3144)
        if ( computed ) {
            ret = computed.getPropertyValue( name ) || computed[ name ];
    
            if ( ret === "" && !isAttached( elem ) ) {
                ret = jQuery.style( elem, name );
            }
    
            // A tribute to the "awesome hack by Dean Edwards"
            // Android Browser returns percentage for some values,
            // but width seems to be reliably pixels.
            // This is against the CSSOM draft spec:
            // https://drafts.csswg.org/cssom/#resolved-values
            if ( !support.pixelBoxStyles() && rnumnonpx.test( ret ) && rboxStyle.test( name ) ) {
    
                // Remember the original values
                width = style.width;
                minWidth = style.minWidth;
                maxWidth = style.maxWidth;
    
                // Put in the new values to get a computed value out
                style.minWidth = style.maxWidth = style.width = ret;
                ret = computed.width;
    
                // Revert the changed values
                style.width = width;
                style.minWidth = minWidth;
                style.maxWidth = maxWidth;
            }
        }
    
        return ret !== undefined ?
    
            // Support: IE <=9 - 11 only
            // IE returns zIndex value as an integer.
            ret + "" :
            ret;
    }
    
    
    function addGetHookIf( conditionFn, hookFn ) {
    
        // Define the hook, we'll check on the first run if it's really needed.
        return {
            get: function() {
                if ( conditionFn() ) {
    
                    // Hook not needed (or it's not possible to use it due
                    // to missing dependency), remove it.
                    delete this.get;
                    return;
                }
    
                // Hook needed; redefine it so that the support test is not executed again.
                return ( this.get = hookFn ).apply( this, arguments );
            }
        };
    }
    
    
    var cssPrefixes = [ "Webkit", "Moz", "ms" ],
        emptyStyle = document.createElement( "div" ).style,
        vendorProps = {};
    
    // Return a vendor-prefixed property or undefined
    function vendorPropName( name ) {
    
        // Check for vendor prefixed names
        var capName = name[ 0 ].toUpperCase() + name.slice( 1 ),
            i = cssPrefixes.length;
    
        while ( i-- ) {
            name = cssPrefixes[ i ] + capName;
            if ( name in emptyStyle ) {
                return name;
            }
        }
    }
    
    // Return a potentially-mapped jQuery.cssProps or vendor prefixed property
    function finalPropName( name ) {
        var final = jQuery.cssProps[ name ] || vendorProps[ name ];
    
        if ( final ) {
            return final;
        }
        if ( name in emptyStyle ) {
            return name;
        }
        return vendorProps[ name ] = vendorPropName( name ) || name;
    }
    
    
    var
    
        // Swappable if display is none or starts with table
        // except "table", "table-cell", or "table-caption"
        // See here for display values: https://developer.mozilla.org/en-US/docs/CSS/display
        rdisplayswap = /^(none|table(?!-c[ea]).+)/,
        rcustomProp = /^--/,
        cssShow = { position: "absolute", visibility: "hidden", display: "block" },
        cssNormalTransform = {
            letterSpacing: "0",
            fontWeight: "400"
        };
    
    function setPositiveNumber( elem, value, subtract ) {
    
        // Any relative (+/-) values have already been
        // normalized at this point
        var matches = rcssNum.exec( value );
        return matches ?
    
            // Guard against undefined "subtract", e.g., when used as in cssHooks
            Math.max( 0, matches[ 2 ] - ( subtract || 0 ) ) + ( matches[ 3 ] || "px" ) :
            value;
    }
    
    function boxModelAdjustment( elem, dimension, box, isBorderBox, styles, computedVal ) {
        var i = dimension === "width" ? 1 : 0,
            extra = 0,
            delta = 0;
    
        // Adjustment may not be necessary
        if ( box === ( isBorderBox ? "border" : "content" ) ) {
            return 0;
        }
    
        for ( ; i < 4; i += 2 ) {
    
            // Both box models exclude margin
            if ( box === "margin" ) {
                delta += jQuery.css( elem, box + cssExpand[ i ], true, styles );
            }
    
            // If we get here with a content-box, we're seeking "padding" or "border" or "margin"
            if ( !isBorderBox ) {
    
                // Add padding
                delta += jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
    
                // For "border" or "margin", add border
                if ( box !== "padding" ) {
                    delta += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
    
                // But still keep track of it otherwise
                } else {
                    extra += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
                }
    
            // If we get here with a border-box (content + padding + border), we're seeking "content" or
            // "padding" or "margin"
            } else {
    
                // For "content", subtract padding
                if ( box === "content" ) {
                    delta -= jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
                }
    
                // For "content" or "padding", subtract border
                if ( box !== "margin" ) {
                    delta -= jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
                }
            }
        }
    
        // Account for positive content-box scroll gutter when requested by providing computedVal
        if ( !isBorderBox && computedVal >= 0 ) {
    
            // offsetWidth/offsetHeight is a rounded sum of content, padding, scroll gutter, and border
            // Assuming integer scroll gutter, subtract the rest and round down
            delta += Math.max( 0, Math.ceil(
                elem[ "offset" + dimension[ 0 ].toUpperCase() + dimension.slice( 1 ) ] -
                computedVal -
                delta -
                extra -
                0.5
    
            // If offsetWidth/offsetHeight is unknown, then we can't determine content-box scroll gutter
            // Use an explicit zero to avoid NaN (gh-3964)
            ) ) || 0;
        }
    
        return delta;
    }
    
    function getWidthOrHeight( elem, dimension, extra ) {
    
        // Start with computed style
        var styles = getStyles( elem ),
    
            // To avoid forcing a reflow, only fetch boxSizing if we need it (gh-4322).
            // Fake content-box until we know it's needed to know the true value.
            boxSizingNeeded = !support.boxSizingReliable() || extra,
            isBorderBox = boxSizingNeeded &&
                jQuery.css( elem, "boxSizing", false, styles ) === "border-box",
            valueIsBorderBox = isBorderBox,
    
            val = curCSS( elem, dimension, styles ),
            offsetProp = "offset" + dimension[ 0 ].toUpperCase() + dimension.slice( 1 );
    
        // Support: Firefox <=54
        // Return a confounding non-pixel value or feign ignorance, as appropriate.
        if ( rnumnonpx.test( val ) ) {
            if ( !extra ) {
                return val;
            }
            val = "auto";
        }
    
    
        // Fall back to offsetWidth/offsetHeight when value is "auto"
        // This happens for inline elements with no explicit setting (gh-3571)
        // Support: Android <=4.1 - 4.3 only
        // Also use offsetWidth/offsetHeight for misreported inline dimensions (gh-3602)
        // Support: IE 9-11 only
        // Also use offsetWidth/offsetHeight for when box sizing is unreliable
        // We use getClientRects() to check for hidden/disconnected.
        // In those cases, the computed value can be trusted to be border-box
        if ( ( !support.boxSizingReliable() && isBorderBox ||
            val === "auto" ||
            !parseFloat( val ) && jQuery.css( elem, "display", false, styles ) === "inline" ) &&
            elem.getClientRects().length ) {
    
            isBorderBox = jQuery.css( elem, "boxSizing", false, styles ) === "border-box";
    
            // Where available, offsetWidth/offsetHeight approximate border box dimensions.
            // Where not available (e.g., SVG), assume unreliable box-sizing and interpret the
            // retrieved value as a content box dimension.
            valueIsBorderBox = offsetProp in elem;
            if ( valueIsBorderBox ) {
                val = elem[ offsetProp ];
            }
        }
    
        // Normalize "" and auto
        val = parseFloat( val ) || 0;
    
        // Adjust for the element's box model
        return ( val +
            boxModelAdjustment(
                elem,
                dimension,
                extra || ( isBorderBox ? "border" : "content" ),
                valueIsBorderBox,
                styles,
    
                // Provide the current computed size to request scroll gutter calculation (gh-3589)
                val
            )
        ) + "px";
    }
    
    jQuery.extend( {
    
        // Add in style property hooks for overriding the default
        // behavior of getting and setting a style property
        cssHooks: {
            opacity: {
                get: function( elem, computed ) {
                    if ( computed ) {
    
                        // We should always get a number back from opacity
                        var ret = curCSS( elem, "opacity" );
                        return ret === "" ? "1" : ret;
                    }
                }
            }
        },
    
        // Don't automatically add "px" to these possibly-unitless properties
        cssNumber: {
            "animationIterationCount": true,
            "columnCount": true,
            "fillOpacity": true,
            "flexGrow": true,
            "flexShrink": true,
            "fontWeight": true,
            "gridArea": true,
            "gridColumn": true,
            "gridColumnEnd": true,
            "gridColumnStart": true,
            "gridRow": true,
            "gridRowEnd": true,
            "gridRowStart": true,
            "lineHeight": true,
            "opacity": true,
            "order": true,
            "orphans": true,
            "widows": true,
            "zIndex": true,
            "zoom": true
        },
    
        // Add in properties whose names you wish to fix before
        // setting or getting the value
        cssProps: {},
    
        // Get and set the style property on a DOM Node
        style: function( elem, name, value, extra ) {
    
            // Don't set styles on text and comment nodes
            if ( !elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style ) {
                return;
            }
    
            // Make sure that we're working with the right name
            var ret, type, hooks,
                origName = camelCase( name ),
                isCustomProp = rcustomProp.test( name ),
                style = elem.style;
    
            // Make sure that we're working with the right name. We don't
            // want to query the value if it is a CSS custom property
            // since they are user-defined.
            if ( !isCustomProp ) {
                name = finalPropName( origName );
            }
    
            // Gets hook for the prefixed version, then unprefixed version
            hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];
    
            // Check if we're setting a value
            if ( value !== undefined ) {
                type = typeof value;
    
                // Convert "+=" or "-=" to relative numbers (#7345)
                if ( type === "string" && ( ret = rcssNum.exec( value ) ) && ret[ 1 ] ) {
                    value = adjustCSS( elem, name, ret );
    
                    // Fixes bug #9237
                    type = "number";
                }
    
                // Make sure that null and NaN values aren't set (#7116)
                if ( value == null || value !== value ) {
                    return;
                }
    
                // If a number was passed in, add the unit (except for certain CSS properties)
                // The isCustomProp check can be removed in jQuery 4.0 when we only auto-append
                // "px" to a few hardcoded values.
                if ( type === "number" && !isCustomProp ) {
                    value += ret && ret[ 3 ] || ( jQuery.cssNumber[ origName ] ? "" : "px" );
                }
    
                // background-* props affect original clone's values
                if ( !support.clearCloneStyle && value === "" && name.indexOf( "background" ) === 0 ) {
                    style[ name ] = "inherit";
                }
    
                // If a hook was provided, use that value, otherwise just set the specified value
                if ( !hooks || !( "set" in hooks ) ||
                    ( value = hooks.set( elem, value, extra ) ) !== undefined ) {
    
                    if ( isCustomProp ) {
                        style.setProperty( name, value );
                    } else {
                        style[ name ] = value;
                    }
                }
    
            } else {
    
                // If a hook was provided get the non-computed value from there
                if ( hooks && "get" in hooks &&
                    ( ret = hooks.get( elem, false, extra ) ) !== undefined ) {
    
                    return ret;
                }
    
                // Otherwise just get the value from the style object
                return style[ name ];
            }
        },
    
        css: function( elem, name, extra, styles ) {
            var val, num, hooks,
                origName = camelCase( name ),
                isCustomProp = rcustomProp.test( name );
    
            // Make sure that we're working with the right name. We don't
            // want to modify the value if it is a CSS custom property
            // since they are user-defined.
            if ( !isCustomProp ) {
                name = finalPropName( origName );
            }
    
            // Try prefixed name followed by the unprefixed name
            hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];
    
            // If a hook was provided get the computed value from there
            if ( hooks && "get" in hooks ) {
                val = hooks.get( elem, true, extra );
            }
    
            // Otherwise, if a way to get the computed value exists, use that
            if ( val === undefined ) {
                val = curCSS( elem, name, styles );
            }
    
            // Convert "normal" to computed value
            if ( val === "normal" && name in cssNormalTransform ) {
                val = cssNormalTransform[ name ];
            }
    
            // Make numeric if forced or a qualifier was provided and val looks numeric
            if ( extra === "" || extra ) {
                num = parseFloat( val );
                return extra === true || isFinite( num ) ? num || 0 : val;
            }
    
            return val;
        }
    } );
    
    jQuery.each( [ "height", "width" ], function( i, dimension ) {
        jQuery.cssHooks[ dimension ] = {
            get: function( elem, computed, extra ) {
                if ( computed ) {
    
                    // Certain elements can have dimension info if we invisibly show them
                    // but it must have a current display style that would benefit
                    return rdisplayswap.test( jQuery.css( elem, "display" ) ) &&
    
                        // Support: Safari 8+
                        // Table columns in Safari have non-zero offsetWidth & zero
                        // getBoundingClientRect().width unless display is changed.
                        // Support: IE <=11 only
                        // Running getBoundingClientRect on a disconnected node
                        // in IE throws an error.
                        ( !elem.getClientRects().length || !elem.getBoundingClientRect().width ) ?
                            swap( elem, cssShow, function() {
                                return getWidthOrHeight( elem, dimension, extra );
                            } ) :
                            getWidthOrHeight( elem, dimension, extra );
                }
            },
    
            set: function( elem, value, extra ) {
                var matches,
                    styles = getStyles( elem ),
    
                    // Only read styles.position if the test has a chance to fail
                    // to avoid forcing a reflow.
                    scrollboxSizeBuggy = !support.scrollboxSize() &&
                        styles.position === "absolute",
    
                    // To avoid forcing a reflow, only fetch boxSizing if we need it (gh-3991)
                    boxSizingNeeded = scrollboxSizeBuggy || extra,
                    isBorderBox = boxSizingNeeded &&
                        jQuery.css( elem, "boxSizing", false, styles ) === "border-box",
                    subtract = extra ?
                        boxModelAdjustment(
                            elem,
                            dimension,
                            extra,
                            isBorderBox,
                            styles
                        ) :
                        0;
    
                // Account for unreliable border-box dimensions by comparing offset* to computed and
                // faking a content-box to get border and padding (gh-3699)
                if ( isBorderBox && scrollboxSizeBuggy ) {
                    subtract -= Math.ceil(
                        elem[ "offset" + dimension[ 0 ].toUpperCase() + dimension.slice( 1 ) ] -
                        parseFloat( styles[ dimension ] ) -
                        boxModelAdjustment( elem, dimension, "border", false, styles ) -
                        0.5
                    );
                }
    
                // Convert to pixels if value adjustment is needed
                if ( subtract && ( matches = rcssNum.exec( value ) ) &&
                    ( matches[ 3 ] || "px" ) !== "px" ) {
    
                    elem.style[ dimension ] = value;
                    value = jQuery.css( elem, dimension );
                }
    
                return setPositiveNumber( elem, value, subtract );
            }
        };
    } );
    
    jQuery.cssHooks.marginLeft = addGetHookIf( support.reliableMarginLeft,
        function( elem, computed ) {
            if ( computed ) {
                return ( parseFloat( curCSS( elem, "marginLeft" ) ) ||
                    elem.getBoundingClientRect().left -
                        swap( elem, { marginLeft: 0 }, function() {
                            return elem.getBoundingClientRect().left;
                        } )
                    ) + "px";
            }
        }
    );
    
    // These hooks are used by animate to expand properties
    jQuery.each( {
        margin: "",
        padding: "",
        border: "Width"
    }, function( prefix, suffix ) {
        jQuery.cssHooks[ prefix + suffix ] = {
            expand: function( value ) {
                var i = 0,
                    expanded = {},
    
                    // Assumes a single number if not a string
                    parts = typeof value === "string" ? value.split( " " ) : [ value ];
    
                for ( ; i < 4; i++ ) {
                    expanded[ prefix + cssExpand[ i ] + suffix ] =
                        parts[ i ] || parts[ i - 2 ] || parts[ 0 ];
                }
    
                return expanded;
            }
        };
    
        if ( prefix !== "margin" ) {
            jQuery.cssHooks[ prefix + suffix ].set = setPositiveNumber;
        }
    } );
    
    jQuery.fn.extend( {
        css: function( name, value ) {
            return access( this, function( elem, name, value ) {
                var styles, len,
                    map = {},
                    i = 0;
    
                if ( Array.isArray( name ) ) {
                    styles = getStyles( elem );
                    len = name.length;
    
                    for ( ; i < len; i++ ) {
                        map[ name[ i ] ] = jQuery.css( elem, name[ i ], false, styles );
                    }
    
                    return map;
                }
    
                return value !== undefined ?
                    jQuery.style( elem, name, value ) :
                    jQuery.css( elem, name );
            }, name, value, arguments.length > 1 );
        }
    } );
    
    
    function Tween( elem, options, prop, end, easing ) {
        return new Tween.prototype.init( elem, options, prop, end, easing );
    }
    jQuery.Tween = Tween;
    
    Tween.prototype = {
        constructor: Tween,
        init: function( elem, options, prop, end, easing, unit ) {
            this.elem = elem;
            this.prop = prop;
            this.easing = easing || jQuery.easing._default;
            this.options = options;
            this.start = this.now = this.cur();
            this.end = end;
            this.unit = unit || ( jQuery.cssNumber[ prop ] ? "" : "px" );
        },
        cur: function() {
            var hooks = Tween.propHooks[ this.prop ];
    
            return hooks && hooks.get ?
                hooks.get( this ) :
                Tween.propHooks._default.get( this );
        },
        run: function( percent ) {
            var eased,
                hooks = Tween.propHooks[ this.prop ];
    
            if ( this.options.duration ) {
                this.pos = eased = jQuery.easing[ this.easing ](
                    percent, this.options.duration * percent, 0, 1, this.options.duration
                );
            } else {
                this.pos = eased = percent;
            }
            this.now = ( this.end - this.start ) * eased + this.start;
    
            if ( this.options.step ) {
                this.options.step.call( this.elem, this.now, this );
            }
    
            if ( hooks && hooks.set ) {
                hooks.set( this );
            } else {
                Tween.propHooks._default.set( this );
            }
            return this;
        }
    };
    
    Tween.prototype.init.prototype = Tween.prototype;
    
    Tween.propHooks = {
        _default: {
            get: function( tween ) {
                var result;
    
                // Use a property on the element directly when it is not a DOM element,
                // or when there is no matching style property that exists.
                if ( tween.elem.nodeType !== 1 ||
                    tween.elem[ tween.prop ] != null && tween.elem.style[ tween.prop ] == null ) {
                    return tween.elem[ tween.prop ];
                }
    
                // Passing an empty string as a 3rd parameter to .css will automatically
                // attempt a parseFloat and fallback to a string if the parse fails.
                // Simple values such as "10px" are parsed to Float;
                // complex values such as "rotate(1rad)" are returned as-is.
                result = jQuery.css( tween.elem, tween.prop, "" );
    
                // Empty strings, null, undefined and "auto" are converted to 0.
                return !result || result === "auto" ? 0 : result;
            },
            set: function( tween ) {
    
                // Use step hook for back compat.
                // Use cssHook if its there.
                // Use .style if available and use plain properties where available.
                if ( jQuery.fx.step[ tween.prop ] ) {
                    jQuery.fx.step[ tween.prop ]( tween );
                } else if ( tween.elem.nodeType === 1 && (
                        jQuery.cssHooks[ tween.prop ] ||
                        tween.elem.style[ finalPropName( tween.prop ) ] != null ) ) {
                    jQuery.style( tween.elem, tween.prop, tween.now + tween.unit );
                } else {
                    tween.elem[ tween.prop ] = tween.now;
                }
            }
        }
    };
    
    // Support: IE <=9 only
    // Panic based approach to setting things on disconnected nodes
    Tween.propHooks.scrollTop = Tween.propHooks.scrollLeft = {
        set: function( tween ) {
            if ( tween.elem.nodeType && tween.elem.parentNode ) {
                tween.elem[ tween.prop ] = tween.now;
            }
        }
    };
    
    jQuery.easing = {
        linear: function( p ) {
            return p;
        },
        swing: function( p ) {
            return 0.5 - Math.cos( p * Math.PI ) / 2;
        },
        _default: "swing"
    };
    
    jQuery.fx = Tween.prototype.init;
    
    // Back compat <1.8 extension point
    jQuery.fx.step = {};
    
    
    
    
    var
        fxNow, inProgress,
        rfxtypes = /^(?:toggle|show|hide)$/,
        rrun = /queueHooks$/;
    
    function schedule() {
        if ( inProgress ) {
            if ( document.hidden === false && window.requestAnimationFrame ) {
                window.requestAnimationFrame( schedule );
            } else {
                window.setTimeout( schedule, jQuery.fx.interval );
            }
    
            jQuery.fx.tick();
        }
    }
    
    // Animations created synchronously will run synchronously
    function createFxNow() {
        window.setTimeout( function() {
            fxNow = undefined;
        } );
        return ( fxNow = Date.now() );
    }
    
    // Generate parameters to create a standard animation
    function genFx( type, includeWidth ) {
        var which,
            i = 0,
            attrs = { height: type };
    
        // If we include width, step value is 1 to do all cssExpand values,
        // otherwise step value is 2 to skip over Left and Right
        includeWidth = includeWidth ? 1 : 0;
        for ( ; i < 4; i += 2 - includeWidth ) {
            which = cssExpand[ i ];
            attrs[ "margin" + which ] = attrs[ "padding" + which ] = type;
        }
    
        if ( includeWidth ) {
            attrs.opacity = attrs.width = type;
        }
    
        return attrs;
    }
    
    function createTween( value, prop, animation ) {
        var tween,
            collection = ( Animation.tweeners[ prop ] || [] ).concat( Animation.tweeners[ "*" ] ),
            index = 0,
            length = collection.length;
        for ( ; index < length; index++ ) {
            if ( ( tween = collection[ index ].call( animation, prop, value ) ) ) {
    
                // We're done with this property
                return tween;
            }
        }
    }
    
    function defaultPrefilter( elem, props, opts ) {
        var prop, value, toggle, hooks, oldfire, propTween, restoreDisplay, display,
            isBox = "width" in props || "height" in props,
            anim = this,
            orig = {},
            style = elem.style,
            hidden = elem.nodeType && isHiddenWithinTree( elem ),
            dataShow = dataPriv.get( elem, "fxshow" );
    
        // Queue-skipping animations hijack the fx hooks
        if ( !opts.queue ) {
            hooks = jQuery._queueHooks( elem, "fx" );
            if ( hooks.unqueued == null ) {
                hooks.unqueued = 0;
                oldfire = hooks.empty.fire;
                hooks.empty.fire = function() {
                    if ( !hooks.unqueued ) {
                        oldfire();
                    }
                };
            }
            hooks.unqueued++;
    
            anim.always( function() {
    
                // Ensure the complete handler is called before this completes
                anim.always( function() {
                    hooks.unqueued--;
                    if ( !jQuery.queue( elem, "fx" ).length ) {
                        hooks.empty.fire();
                    }
                } );
            } );
        }
    
        // Detect show/hide animations
        for ( prop in props ) {
            value = props[ prop ];
            if ( rfxtypes.test( value ) ) {
                delete props[ prop ];
                toggle = toggle || value === "toggle";
                if ( value === ( hidden ? "hide" : "show" ) ) {
    
                    // Pretend to be hidden if this is a "show" and
                    // there is still data from a stopped show/hide
                    if ( value === "show" && dataShow && dataShow[ prop ] !== undefined ) {
                        hidden = true;
    
                    // Ignore all other no-op show/hide data
                    } else {
                        continue;
                    }
                }
                orig[ prop ] = dataShow && dataShow[ prop ] || jQuery.style( elem, prop );
            }
        }
    
        // Bail out if this is a no-op like .hide().hide()
        propTween = !jQuery.isEmptyObject( props );
        if ( !propTween && jQuery.isEmptyObject( orig ) ) {
            return;
        }
    
        // Restrict "overflow" and "display" styles during box animations
        if ( isBox && elem.nodeType === 1 ) {
    
            // Support: IE <=9 - 11, Edge 12 - 15
            // Record all 3 overflow attributes because IE does not infer the shorthand
            // from identically-valued overflowX and overflowY and Edge just mirrors
            // the overflowX value there.
            opts.overflow = [ style.overflow, style.overflowX, style.overflowY ];
    
            // Identify a display type, preferring old show/hide data over the CSS cascade
            restoreDisplay = dataShow && dataShow.display;
            if ( restoreDisplay == null ) {
                restoreDisplay = dataPriv.get( elem, "display" );
            }
            display = jQuery.css( elem, "display" );
            if ( display === "none" ) {
                if ( restoreDisplay ) {
                    display = restoreDisplay;
                } else {
    
                    // Get nonempty value(s) by temporarily forcing visibility
                    showHide( [ elem ], true );
                    restoreDisplay = elem.style.display || restoreDisplay;
                    display = jQuery.css( elem, "display" );
                    showHide( [ elem ] );
                }
            }
    
            // Animate inline elements as inline-block
            if ( display === "inline" || display === "inline-block" && restoreDisplay != null ) {
                if ( jQuery.css( elem, "float" ) === "none" ) {
    
                    // Restore the original display value at the end of pure show/hide animations
                    if ( !propTween ) {
                        anim.done( function() {
                            style.display = restoreDisplay;
                        } );
                        if ( restoreDisplay == null ) {
                            display = style.display;
                            restoreDisplay = display === "none" ? "" : display;
                        }
                    }
                    style.display = "inline-block";
                }
            }
        }
    
        if ( opts.overflow ) {
            style.overflow = "hidden";
            anim.always( function() {
                style.overflow = opts.overflow[ 0 ];
                style.overflowX = opts.overflow[ 1 ];
                style.overflowY = opts.overflow[ 2 ];
            } );
        }
    
        // Implement show/hide animations
        propTween = false;
        for ( prop in orig ) {
    
            // General show/hide setup for this element animation
            if ( !propTween ) {
                if ( dataShow ) {
                    if ( "hidden" in dataShow ) {
                        hidden = dataShow.hidden;
                    }
                } else {
                    dataShow = dataPriv.access( elem, "fxshow", { display: restoreDisplay } );
                }
    
                // Store hidden/visible for toggle so `.stop().toggle()` "reverses"
                if ( toggle ) {
                    dataShow.hidden = !hidden;
                }
    
                // Show elements before animating them
                if ( hidden ) {
                    showHide( [ elem ], true );
                }
    
                /* eslint-disable no-loop-func */
    
                anim.done( function() {
    
                /* eslint-enable no-loop-func */
    
                    // The final step of a "hide" animation is actually hiding the element
                    if ( !hidden ) {
                        showHide( [ elem ] );
                    }
                    dataPriv.remove( elem, "fxshow" );
                    for ( prop in orig ) {
                        jQuery.style( elem, prop, orig[ prop ] );
                    }
                } );
            }
    
            // Per-property setup
            propTween = createTween( hidden ? dataShow[ prop ] : 0, prop, anim );
            if ( !( prop in dataShow ) ) {
                dataShow[ prop ] = propTween.start;
                if ( hidden ) {
                    propTween.end = propTween.start;
                    propTween.start = 0;
                }
            }
        }
    }
    
    function propFilter( props, specialEasing ) {
        var index, name, easing, value, hooks;
    
        // camelCase, specialEasing and expand cssHook pass
        for ( index in props ) {
            name = camelCase( index );
            easing = specialEasing[ name ];
            value = props[ index ];
            if ( Array.isArray( value ) ) {
                easing = value[ 1 ];
                value = props[ index ] = value[ 0 ];
            }
    
            if ( index !== name ) {
                props[ name ] = value;
                delete props[ index ];
            }
    
            hooks = jQuery.cssHooks[ name ];
            if ( hooks && "expand" in hooks ) {
                value = hooks.expand( value );
                delete props[ name ];
    
                // Not quite $.extend, this won't overwrite existing keys.
                // Reusing 'index' because we have the correct "name"
                for ( index in value ) {
                    if ( !( index in props ) ) {
                        props[ index ] = value[ index ];
                        specialEasing[ index ] = easing;
                    }
                }
            } else {
                specialEasing[ name ] = easing;
            }
        }
    }
    
    function Animation( elem, properties, options ) {
        var result,
            stopped,
            index = 0,
            length = Animation.prefilters.length,
            deferred = jQuery.Deferred().always( function() {
    
                // Don't match elem in the :animated selector
                delete tick.elem;
            } ),
            tick = function() {
                if ( stopped ) {
                    return false;
                }
                var currentTime = fxNow || createFxNow(),
                    remaining = Math.max( 0, animation.startTime + animation.duration - currentTime ),
    
                    // Support: Android 2.3 only
                    // Archaic crash bug won't allow us to use `1 - ( 0.5 || 0 )` (#12497)
                    temp = remaining / animation.duration || 0,
                    percent = 1 - temp,
                    index = 0,
                    length = animation.tweens.length;
    
                for ( ; index < length; index++ ) {
                    animation.tweens[ index ].run( percent );
                }
    
                deferred.notifyWith( elem, [ animation, percent, remaining ] );
    
                // If there's more to do, yield
                if ( percent < 1 && length ) {
                    return remaining;
                }
    
                // If this was an empty animation, synthesize a final progress notification
                if ( !length ) {
                    deferred.notifyWith( elem, [ animation, 1, 0 ] );
                }
    
                // Resolve the animation and report its conclusion
                deferred.resolveWith( elem, [ animation ] );
                return false;
            },
            animation = deferred.promise( {
                elem: elem,
                props: jQuery.extend( {}, properties ),
                opts: jQuery.extend( true, {
                    specialEasing: {},
                    easing: jQuery.easing._default
                }, options ),
                originalProperties: properties,
                originalOptions: options,
                startTime: fxNow || createFxNow(),
                duration: options.duration,
                tweens: [],
                createTween: function( prop, end ) {
                    var tween = jQuery.Tween( elem, animation.opts, prop, end,
                            animation.opts.specialEasing[ prop ] || animation.opts.easing );
                    animation.tweens.push( tween );
                    return tween;
                },
                stop: function( gotoEnd ) {
                    var index = 0,
    
                        // If we are going to the end, we want to run all the tweens
                        // otherwise we skip this part
                        length = gotoEnd ? animation.tweens.length : 0;
                    if ( stopped ) {
                        return this;
                    }
                    stopped = true;
                    for ( ; index < length; index++ ) {
                        animation.tweens[ index ].run( 1 );
                    }
    
                    // Resolve when we played the last frame; otherwise, reject
                    if ( gotoEnd ) {
                        deferred.notifyWith( elem, [ animation, 1, 0 ] );
                        deferred.resolveWith( elem, [ animation, gotoEnd ] );
                    } else {
                        deferred.rejectWith( elem, [ animation, gotoEnd ] );
                    }
                    return this;
                }
            } ),
            props = animation.props;
    
        propFilter( props, animation.opts.specialEasing );
    
        for ( ; index < length; index++ ) {
            result = Animation.prefilters[ index ].call( animation, elem, props, animation.opts );
            if ( result ) {
                if ( isFunction( result.stop ) ) {
                    jQuery._queueHooks( animation.elem, animation.opts.queue ).stop =
                        result.stop.bind( result );
                }
                return result;
            }
        }
    
        jQuery.map( props, createTween, animation );
    
        if ( isFunction( animation.opts.start ) ) {
            animation.opts.start.call( elem, animation );
        }
    
        // Attach callbacks from options
        animation
            .progress( animation.opts.progress )
            .done( animation.opts.done, animation.opts.complete )
            .fail( animation.opts.fail )
            .always( animation.opts.always );
    
        jQuery.fx.timer(
            jQuery.extend( tick, {
                elem: elem,
                anim: animation,
                queue: animation.opts.queue
            } )
        );
    
        return animation;
    }
    
    jQuery.Animation = jQuery.extend( Animation, {
    
        tweeners: {
            "*": [ function( prop, value ) {
                var tween = this.createTween( prop, value );
                adjustCSS( tween.elem, prop, rcssNum.exec( value ), tween );
                return tween;
            } ]
        },
    
        tweener: function( props, callback ) {
            if ( isFunction( props ) ) {
                callback = props;
                props = [ "*" ];
            } else {
                props = props.match( rnothtmlwhite );
            }
    
            var prop,
                index = 0,
                length = props.length;
    
            for ( ; index < length; index++ ) {
                prop = props[ index ];
                Animation.tweeners[ prop ] = Animation.tweeners[ prop ] || [];
                Animation.tweeners[ prop ].unshift( callback );
            }
        },
    
        prefilters: [ defaultPrefilter ],
    
        prefilter: function( callback, prepend ) {
            if ( prepend ) {
                Animation.prefilters.unshift( callback );
            } else {
                Animation.prefilters.push( callback );
            }
        }
    } );
    
    jQuery.speed = function( speed, easing, fn ) {
        var opt = speed && typeof speed === "object" ? jQuery.extend( {}, speed ) : {
            complete: fn || !fn && easing ||
                isFunction( speed ) && speed,
            duration: speed,
            easing: fn && easing || easing && !isFunction( easing ) && easing
        };
    
        // Go to the end state if fx are off
        if ( jQuery.fx.off ) {
            opt.duration = 0;
    
        } else {
            if ( typeof opt.duration !== "number" ) {
                if ( opt.duration in jQuery.fx.speeds ) {
                    opt.duration = jQuery.fx.speeds[ opt.duration ];
    
                } else {
                    opt.duration = jQuery.fx.speeds._default;
                }
            }
        }
    
        // Normalize opt.queue - true/undefined/null -> "fx"
        if ( opt.queue == null || opt.queue === true ) {
            opt.queue = "fx";
        }
    
        // Queueing
        opt.old = opt.complete;
    
        opt.complete = function() {
            if ( isFunction( opt.old ) ) {
                opt.old.call( this );
            }
    
            if ( opt.queue ) {
                jQuery.dequeue( this, opt.queue );
            }
        };
    
        return opt;
    };
    
    jQuery.fn.extend( {
        fadeTo: function( speed, to, easing, callback ) {
    
            // Show any hidden elements after setting opacity to 0
            return this.filter( isHiddenWithinTree ).css( "opacity", 0 ).show()
    
                // Animate to the value specified
                .end().animate( { opacity: to }, speed, easing, callback );
        },
        animate: function( prop, speed, easing, callback ) {
            var empty = jQuery.isEmptyObject( prop ),
                optall = jQuery.speed( speed, easing, callback ),
                doAnimation = function() {
    
                    // Operate on a copy of prop so per-property easing won't be lost
                    var anim = Animation( this, jQuery.extend( {}, prop ), optall );
    
                    // Empty animations, or finishing resolves immediately
                    if ( empty || dataPriv.get( this, "finish" ) ) {
                        anim.stop( true );
                    }
                };
                doAnimation.finish = doAnimation;
    
            return empty || optall.queue === false ?
                this.each( doAnimation ) :
                this.queue( optall.queue, doAnimation );
        },
        stop: function( type, clearQueue, gotoEnd ) {
            var stopQueue = function( hooks ) {
                var stop = hooks.stop;
                delete hooks.stop;
                stop( gotoEnd );
            };
    
            if ( typeof type !== "string" ) {
                gotoEnd = clearQueue;
                clearQueue = type;
                type = undefined;
            }
            if ( clearQueue && type !== false ) {
                this.queue( type || "fx", [] );
            }
    
            return this.each( function() {
                var dequeue = true,
                    index = type != null && type + "queueHooks",
                    timers = jQuery.timers,
                    data = dataPriv.get( this );
    
                if ( index ) {
                    if ( data[ index ] && data[ index ].stop ) {
                        stopQueue( data[ index ] );
                    }
                } else {
                    for ( index in data ) {
                        if ( data[ index ] && data[ index ].stop && rrun.test( index ) ) {
                            stopQueue( data[ index ] );
                        }
                    }
                }
    
                for ( index = timers.length; index--; ) {
                    if ( timers[ index ].elem === this &&
                        ( type == null || timers[ index ].queue === type ) ) {
    
                        timers[ index ].anim.stop( gotoEnd );
                        dequeue = false;
                        timers.splice( index, 1 );
                    }
                }
    
                // Start the next in the queue if the last step wasn't forced.
                // Timers currently will call their complete callbacks, which
                // will dequeue but only if they were gotoEnd.
                if ( dequeue || !gotoEnd ) {
                    jQuery.dequeue( this, type );
                }
            } );
        },
        finish: function( type ) {
            if ( type !== false ) {
                type = type || "fx";
            }
            return this.each( function() {
                var index,
                    data = dataPriv.get( this ),
                    queue = data[ type + "queue" ],
                    hooks = data[ type + "queueHooks" ],
                    timers = jQuery.timers,
                    length = queue ? queue.length : 0;
    
                // Enable finishing flag on private data
                data.finish = true;
    
                // Empty the queue first
                jQuery.queue( this, type, [] );
    
                if ( hooks && hooks.stop ) {
                    hooks.stop.call( this, true );
                }
    
                // Look for any active animations, and finish them
                for ( index = timers.length; index--; ) {
                    if ( timers[ index ].elem === this && timers[ index ].queue === type ) {
                        timers[ index ].anim.stop( true );
                        timers.splice( index, 1 );
                    }
                }
    
                // Look for any animations in the old queue and finish them
                for ( index = 0; index < length; index++ ) {
                    if ( queue[ index ] && queue[ index ].finish ) {
                        queue[ index ].finish.call( this );
                    }
                }
    
                // Turn off finishing flag
                delete data.finish;
            } );
        }
    } );
    
    jQuery.each( [ "toggle", "show", "hide" ], function( i, name ) {
        var cssFn = jQuery.fn[ name ];
        jQuery.fn[ name ] = function( speed, easing, callback ) {
            return speed == null || typeof speed === "boolean" ?
                cssFn.apply( this, arguments ) :
                this.animate( genFx( name, true ), speed, easing, callback );
        };
    } );
    
    // Generate shortcuts for custom animations
    jQuery.each( {
        slideDown: genFx( "show" ),
        slideUp: genFx( "hide" ),
        slideToggle: genFx( "toggle" ),
        fadeIn: { opacity: "show" },
        fadeOut: { opacity: "hide" },
        fadeToggle: { opacity: "toggle" }
    }, function( name, props ) {
        jQuery.fn[ name ] = function( speed, easing, callback ) {
            return this.animate( props, speed, easing, callback );
        };
    } );
    
    jQuery.timers = [];
    jQuery.fx.tick = function() {
        var timer,
            i = 0,
            timers = jQuery.timers;
    
        fxNow = Date.now();
    
        for ( ; i < timers.length; i++ ) {
            timer = timers[ i ];
    
            // Run the timer and safely remove it when done (allowing for external removal)
            if ( !timer() && timers[ i ] === timer ) {
                timers.splice( i--, 1 );
            }
        }
    
        if ( !timers.length ) {
            jQuery.fx.stop();
        }
        fxNow = undefined;
    };
    
    jQuery.fx.timer = function( timer ) {
        jQuery.timers.push( timer );
        jQuery.fx.start();
    };
    
    jQuery.fx.interval = 13;
    jQuery.fx.start = function() {
        if ( inProgress ) {
            return;
        }
    
        inProgress = true;
        schedule();
    };
    
    jQuery.fx.stop = function() {
        inProgress = null;
    };
    
    jQuery.fx.speeds = {
        slow: 600,
        fast: 200,
    
        // Default speed
        _default: 400
    };
    
    
    // Based off of the plugin by Clint Helfers, with permission.
    // https://web.archive.org/web/20100324014747/http://blindsignals.com/index.php/2009/07/jquery-delay/
    jQuery.fn.delay = function( time, type ) {
        time = jQuery.fx ? jQuery.fx.speeds[ time ] || time : time;
        type = type || "fx";
    
        return this.queue( type, function( next, hooks ) {
            var timeout = window.setTimeout( next, time );
            hooks.stop = function() {
                window.clearTimeout( timeout );
            };
        } );
    };
    
    
    ( function() {
        var input = document.createElement( "input" ),
            select = document.createElement( "select" ),
            opt = select.appendChild( document.createElement( "option" ) );
    
        input.type = "checkbox";
    
        // Support: Android <=4.3 only
        // Default value for a checkbox should be "on"
        support.checkOn = input.value !== "";
    
        // Support: IE <=11 only
        // Must access selectedIndex to make default options select
        support.optSelected = opt.selected;
    
        // Support: IE <=11 only
        // An input loses its value after becoming a radio
        input = document.createElement( "input" );
        input.value = "t";
        input.type = "radio";
        support.radioValue = input.value === "t";
    } )();
    
    
    var boolHook,
        attrHandle = jQuery.expr.attrHandle;
    
    jQuery.fn.extend( {
        attr: function( name, value ) {
            return access( this, jQuery.attr, name, value, arguments.length > 1 );
        },
    
        removeAttr: function( name ) {
            return this.each( function() {
                jQuery.removeAttr( this, name );
            } );
        }
    } );
    
    jQuery.extend( {
        attr: function( elem, name, value ) {
            var ret, hooks,
                nType = elem.nodeType;
    
            // Don't get/set attributes on text, comment and attribute nodes
            if ( nType === 3 || nType === 8 || nType === 2 ) {
                return;
            }
    
            // Fallback to prop when attributes are not supported
            if ( typeof elem.getAttribute === "undefined" ) {
                return jQuery.prop( elem, name, value );
            }
    
            // Attribute hooks are determined by the lowercase version
            // Grab necessary hook if one is defined
            if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {
                hooks = jQuery.attrHooks[ name.toLowerCase() ] ||
                    ( jQuery.expr.match.bool.test( name ) ? boolHook : undefined );
            }
    
            if ( value !== undefined ) {
                if ( value === null ) {
                    jQuery.removeAttr( elem, name );
                    return;
                }
    
                if ( hooks && "set" in hooks &&
                    ( ret = hooks.set( elem, value, name ) ) !== undefined ) {
                    return ret;
                }
    
                elem.setAttribute( name, value + "" );
                return value;
            }
    
            if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) {
                return ret;
            }
    
            ret = jQuery.find.attr( elem, name );
    
            // Non-existent attributes return null, we normalize to undefined
            return ret == null ? undefined : ret;
        },
    
        attrHooks: {
            type: {
                set: function( elem, value ) {
                    if ( !support.radioValue && value === "radio" &&
                        nodeName( elem, "input" ) ) {
                        var val = elem.value;
                        elem.setAttribute( "type", value );
                        if ( val ) {
                            elem.value = val;
                        }
                        return value;
                    }
                }
            }
        },
    
        removeAttr: function( elem, value ) {
            var name,
                i = 0,
    
                // Attribute names can contain non-HTML whitespace characters
                // https://html.spec.whatwg.org/multipage/syntax.html#attributes-2
                attrNames = value && value.match( rnothtmlwhite );
    
            if ( attrNames && elem.nodeType === 1 ) {
                while ( ( name = attrNames[ i++ ] ) ) {
                    elem.removeAttribute( name );
                }
            }
        }
    } );
    
    // Hooks for boolean attributes
    boolHook = {
        set: function( elem, value, name ) {
            if ( value === false ) {
    
                // Remove boolean attributes when set to false
                jQuery.removeAttr( elem, name );
            } else {
                elem.setAttribute( name, name );
            }
            return name;
        }
    };
    
    jQuery.each( jQuery.expr.match.bool.source.match( /\w+/g ), function( i, name ) {
        var getter = attrHandle[ name ] || jQuery.find.attr;
    
        attrHandle[ name ] = function( elem, name, isXML ) {
            var ret, handle,
                lowercaseName = name.toLowerCase();
    
            if ( !isXML ) {
    
                // Avoid an infinite loop by temporarily removing this function from the getter
                handle = attrHandle[ lowercaseName ];
                attrHandle[ lowercaseName ] = ret;
                ret = getter( elem, name, isXML ) != null ?
                    lowercaseName :
                    null;
                attrHandle[ lowercaseName ] = handle;
            }
            return ret;
        };
    } );
    
    
    
    
    var rfocusable = /^(?:input|select|textarea|button)$/i,
        rclickable = /^(?:a|area)$/i;
    
    jQuery.fn.extend( {
        prop: function( name, value ) {
            return access( this, jQuery.prop, name, value, arguments.length > 1 );
        },
    
        removeProp: function( name ) {
            return this.each( function() {
                delete this[ jQuery.propFix[ name ] || name ];
            } );
        }
    } );
    
    jQuery.extend( {
        prop: function( elem, name, value ) {
            var ret, hooks,
                nType = elem.nodeType;
    
            // Don't get/set properties on text, comment and attribute nodes
            if ( nType === 3 || nType === 8 || nType === 2 ) {
                return;
            }
    
            if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {
    
                // Fix name and attach hooks
                name = jQuery.propFix[ name ] || name;
                hooks = jQuery.propHooks[ name ];
            }
    
            if ( value !== undefined ) {
                if ( hooks && "set" in hooks &&
                    ( ret = hooks.set( elem, value, name ) ) !== undefined ) {
                    return ret;
                }
    
                return ( elem[ name ] = value );
            }
    
            if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) {
                return ret;
            }
    
            return elem[ name ];
        },
    
        propHooks: {
            tabIndex: {
                get: function( elem ) {
    
                    // Support: IE <=9 - 11 only
                    // elem.tabIndex doesn't always return the
                    // correct value when it hasn't been explicitly set
                    // https://web.archive.org/web/20141116233347/http://fluidproject.org/blog/2008/01/09/getting-setting-and-removing-tabindex-values-with-javascript/
                    // Use proper attribute retrieval(#12072)
                    var tabindex = jQuery.find.attr( elem, "tabindex" );
    
                    if ( tabindex ) {
                        return parseInt( tabindex, 10 );
                    }
    
                    if (
                        rfocusable.test( elem.nodeName ) ||
                        rclickable.test( elem.nodeName ) &&
                        elem.href
                    ) {
                        return 0;
                    }
    
                    return -1;
                }
            }
        },
    
        propFix: {
            "for": "htmlFor",
            "class": "className"
        }
    } );
    
    // Support: IE <=11 only
    // Accessing the selectedIndex property
    // forces the browser to respect setting selected
    // on the option
    // The getter ensures a default option is selected
    // when in an optgroup
    // eslint rule "no-unused-expressions" is disabled for this code
    // since it considers such accessions noop
    if ( !support.optSelected ) {
        jQuery.propHooks.selected = {
            get: function( elem ) {
    
                /* eslint no-unused-expressions: "off" */
    
                var parent = elem.parentNode;
                if ( parent && parent.parentNode ) {
                    parent.parentNode.selectedIndex;
                }
                return null;
            },
            set: function( elem ) {
    
                /* eslint no-unused-expressions: "off" */
    
                var parent = elem.parentNode;
                if ( parent ) {
                    parent.selectedIndex;
    
                    if ( parent.parentNode ) {
                        parent.parentNode.selectedIndex;
                    }
                }
            }
        };
    }
    
    jQuery.each( [
        "tabIndex",
        "readOnly",
        "maxLength",
        "cellSpacing",
        "cellPadding",
        "rowSpan",
        "colSpan",
        "useMap",
        "frameBorder",
        "contentEditable"
    ], function() {
        jQuery.propFix[ this.toLowerCase() ] = this;
    } );
    
    
    
    
        // Strip and collapse whitespace according to HTML spec
        // https://infra.spec.whatwg.org/#strip-and-collapse-ascii-whitespace
        function stripAndCollapse( value ) {
            var tokens = value.match( rnothtmlwhite ) || [];
            return tokens.join( " " );
        }
    
    
    function getClass( elem ) {
        return elem.getAttribute && elem.getAttribute( "class" ) || "";
    }
    
    function classesToArray( value ) {
        if ( Array.isArray( value ) ) {
            return value;
        }
        if ( typeof value === "string" ) {
            return value.match( rnothtmlwhite ) || [];
        }
        return [];
    }
    
    jQuery.fn.extend( {
        addClass: function( value ) {
            var classes, elem, cur, curValue, clazz, j, finalValue,
                i = 0;
    
            if ( isFunction( value ) ) {
                return this.each( function( j ) {
                    jQuery( this ).addClass( value.call( this, j, getClass( this ) ) );
                } );
            }
    
            classes = classesToArray( value );
    
            if ( classes.length ) {
                while ( ( elem = this[ i++ ] ) ) {
                    curValue = getClass( elem );
                    cur = elem.nodeType === 1 && ( " " + stripAndCollapse( curValue ) + " " );
    
                    if ( cur ) {
                        j = 0;
                        while ( ( clazz = classes[ j++ ] ) ) {
                            if ( cur.indexOf( " " + clazz + " " ) < 0 ) {
                                cur += clazz + " ";
                            }
                        }
    
                        // Only assign if different to avoid unneeded rendering.
                        finalValue = stripAndCollapse( cur );
                        if ( curValue !== finalValue ) {
                            elem.setAttribute( "class", finalValue );
                        }
                    }
                }
            }
    
            return this;
        },
    
        removeClass: function( value ) {
            var classes, elem, cur, curValue, clazz, j, finalValue,
                i = 0;
    
            if ( isFunction( value ) ) {
                return this.each( function( j ) {
                    jQuery( this ).removeClass( value.call( this, j, getClass( this ) ) );
                } );
            }
    
            if ( !arguments.length ) {
                return this.attr( "class", "" );
            }
    
            classes = classesToArray( value );
    
            if ( classes.length ) {
                while ( ( elem = this[ i++ ] ) ) {
                    curValue = getClass( elem );
    
                    // This expression is here for better compressibility (see addClass)
                    cur = elem.nodeType === 1 && ( " " + stripAndCollapse( curValue ) + " " );
    
                    if ( cur ) {
                        j = 0;
                        while ( ( clazz = classes[ j++ ] ) ) {
    
                            // Remove *all* instances
                            while ( cur.indexOf( " " + clazz + " " ) > -1 ) {
                                cur = cur.replace( " " + clazz + " ", " " );
                            }
                        }
    
                        // Only assign if different to avoid unneeded rendering.
                        finalValue = stripAndCollapse( cur );
                        if ( curValue !== finalValue ) {
                            elem.setAttribute( "class", finalValue );
                        }
                    }
                }
            }
    
            return this;
        },
    
        toggleClass: function( value, stateVal ) {
            var type = typeof value,
                isValidValue = type === "string" || Array.isArray( value );
    
            if ( typeof stateVal === "boolean" && isValidValue ) {
                return stateVal ? this.addClass( value ) : this.removeClass( value );
            }
    
            if ( isFunction( value ) ) {
                return this.each( function( i ) {
                    jQuery( this ).toggleClass(
                        value.call( this, i, getClass( this ), stateVal ),
                        stateVal
                    );
                } );
            }
    
            return this.each( function() {
                var className, i, self, classNames;
    
                if ( isValidValue ) {
    
                    // Toggle individual class names
                    i = 0;
                    self = jQuery( this );
                    classNames = classesToArray( value );
    
                    while ( ( className = classNames[ i++ ] ) ) {
    
                        // Check each className given, space separated list
                        if ( self.hasClass( className ) ) {
                            self.removeClass( className );
                        } else {
                            self.addClass( className );
                        }
                    }
    
                // Toggle whole class name
                } else if ( value === undefined || type === "boolean" ) {
                    className = getClass( this );
                    if ( className ) {
    
                        // Store className if set
                        dataPriv.set( this, "__className__", className );
                    }
    
                    // If the element has a class name or if we're passed `false`,
                    // then remove the whole classname (if there was one, the above saved it).
                    // Otherwise bring back whatever was previously saved (if anything),
                    // falling back to the empty string if nothing was stored.
                    if ( this.setAttribute ) {
                        this.setAttribute( "class",
                            className || value === false ?
                            "" :
                            dataPriv.get( this, "__className__" ) || ""
                        );
                    }
                }
            } );
        },
    
        hasClass: function( selector ) {
            var className, elem,
                i = 0;
    
            className = " " + selector + " ";
            while ( ( elem = this[ i++ ] ) ) {
                if ( elem.nodeType === 1 &&
                    ( " " + stripAndCollapse( getClass( elem ) ) + " " ).indexOf( className ) > -1 ) {
                        return true;
                }
            }
    
            return false;
        }
    } );
    
    
    
    
    var rreturn = /\r/g;
    
    jQuery.fn.extend( {
        val: function( value ) {
            var hooks, ret, valueIsFunction,
                elem = this[ 0 ];
    
            if ( !arguments.length ) {
                if ( elem ) {
                    hooks = jQuery.valHooks[ elem.type ] ||
                        jQuery.valHooks[ elem.nodeName.toLowerCase() ];
    
                    if ( hooks &&
                        "get" in hooks &&
                        ( ret = hooks.get( elem, "value" ) ) !== undefined
                    ) {
                        return ret;
                    }
    
                    ret = elem.value;
    
                    // Handle most common string cases
                    if ( typeof ret === "string" ) {
                        return ret.replace( rreturn, "" );
                    }
    
                    // Handle cases where value is null/undef or number
                    return ret == null ? "" : ret;
                }
    
                return;
            }
    
            valueIsFunction = isFunction( value );
    
            return this.each( function( i ) {
                var val;
    
                if ( this.nodeType !== 1 ) {
                    return;
                }
    
                if ( valueIsFunction ) {
                    val = value.call( this, i, jQuery( this ).val() );
                } else {
                    val = value;
                }
    
                // Treat null/undefined as ""; convert numbers to string
                if ( val == null ) {
                    val = "";
    
                } else if ( typeof val === "number" ) {
                    val += "";
    
                } else if ( Array.isArray( val ) ) {
                    val = jQuery.map( val, function( value ) {
                        return value == null ? "" : value + "";
                    } );
                }
    
                hooks = jQuery.valHooks[ this.type ] || jQuery.valHooks[ this.nodeName.toLowerCase() ];
    
                // If set returns undefined, fall back to normal setting
                if ( !hooks || !( "set" in hooks ) || hooks.set( this, val, "value" ) === undefined ) {
                    this.value = val;
                }
            } );
        }
    } );
    
    jQuery.extend( {
        valHooks: {
            option: {
                get: function( elem ) {
    
                    var val = jQuery.find.attr( elem, "value" );
                    return val != null ?
                        val :
    
                        // Support: IE <=10 - 11 only
                        // option.text throws exceptions (#14686, #14858)
                        // Strip and collapse whitespace
                        // https://html.spec.whatwg.org/#strip-and-collapse-whitespace
                        stripAndCollapse( jQuery.text( elem ) );
                }
            },
            select: {
                get: function( elem ) {
                    var value, option, i,
                        options = elem.options,
                        index = elem.selectedIndex,
                        one = elem.type === "select-one",
                        values = one ? null : [],
                        max = one ? index + 1 : options.length;
    
                    if ( index < 0 ) {
                        i = max;
    
                    } else {
                        i = one ? index : 0;
                    }
    
                    // Loop through all the selected options
                    for ( ; i < max; i++ ) {
                        option = options[ i ];
    
                        // Support: IE <=9 only
                        // IE8-9 doesn't update selected after form reset (#2551)
                        if ( ( option.selected || i === index ) &&
    
                                // Don't return options that are disabled or in a disabled optgroup
                                !option.disabled &&
                                ( !option.parentNode.disabled ||
                                    !nodeName( option.parentNode, "optgroup" ) ) ) {
    
                            // Get the specific value for the option
                            value = jQuery( option ).val();
    
                            // We don't need an array for one selects
                            if ( one ) {
                                return value;
                            }
    
                            // Multi-Selects return an array
                            values.push( value );
                        }
                    }
    
                    return values;
                },
    
                set: function( elem, value ) {
                    var optionSet, option,
                        options = elem.options,
                        values = jQuery.makeArray( value ),
                        i = options.length;
    
                    while ( i-- ) {
                        option = options[ i ];
    
                        /* eslint-disable no-cond-assign */
    
                        if ( option.selected =
                            jQuery.inArray( jQuery.valHooks.option.get( option ), values ) > -1
                        ) {
                            optionSet = true;
                        }
    
                        /* eslint-enable no-cond-assign */
                    }
    
                    // Force browsers to behave consistently when non-matching value is set
                    if ( !optionSet ) {
                        elem.selectedIndex = -1;
                    }
                    return values;
                }
            }
        }
    } );
    
    // Radios and checkboxes getter/setter
    jQuery.each( [ "radio", "checkbox" ], function() {
        jQuery.valHooks[ this ] = {
            set: function( elem, value ) {
                if ( Array.isArray( value ) ) {
                    return ( elem.checked = jQuery.inArray( jQuery( elem ).val(), value ) > -1 );
                }
            }
        };
        if ( !support.checkOn ) {
            jQuery.valHooks[ this ].get = function( elem ) {
                return elem.getAttribute( "value" ) === null ? "on" : elem.value;
            };
        }
    } );
    
    
    
    
    // Return jQuery for attributes-only inclusion
    
    
    support.focusin = "onfocusin" in window;
    
    
    var rfocusMorph = /^(?:focusinfocus|focusoutblur)$/,
        stopPropagationCallback = function( e ) {
            e.stopPropagation();
        };
    
    jQuery.extend( jQuery.event, {
    
        trigger: function( event, data, elem, onlyHandlers ) {
    
            var i, cur, tmp, bubbleType, ontype, handle, special, lastElement,
                eventPath = [ elem || document ],
                type = hasOwn.call( event, "type" ) ? event.type : event,
                namespaces = hasOwn.call( event, "namespace" ) ? event.namespace.split( "." ) : [];
    
            cur = lastElement = tmp = elem = elem || document;
    
            // Don't do events on text and comment nodes
            if ( elem.nodeType === 3 || elem.nodeType === 8 ) {
                return;
            }
    
            // focus/blur morphs to focusin/out; ensure we're not firing them right now
            if ( rfocusMorph.test( type + jQuery.event.triggered ) ) {
                return;
            }
    
            if ( type.indexOf( "." ) > -1 ) {
    
                // Namespaced trigger; create a regexp to match event type in handle()
                namespaces = type.split( "." );
                type = namespaces.shift();
                namespaces.sort();
            }
            ontype = type.indexOf( ":" ) < 0 && "on" + type;
    
            // Caller can pass in a jQuery.Event object, Object, or just an event type string
            event = event[ jQuery.expando ] ?
                event :
                new jQuery.Event( type, typeof event === "object" && event );
    
            // Trigger bitmask: & 1 for native handlers; & 2 for jQuery (always true)
            event.isTrigger = onlyHandlers ? 2 : 3;
            event.namespace = namespaces.join( "." );
            event.rnamespace = event.namespace ?
                new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" ) :
                null;
    
            // Clean up the event in case it is being reused
            event.result = undefined;
            if ( !event.target ) {
                event.target = elem;
            }
    
            // Clone any incoming data and prepend the event, creating the handler arg list
            data = data == null ?
                [ event ] :
                jQuery.makeArray( data, [ event ] );
    
            // Allow special events to draw outside the lines
            special = jQuery.event.special[ type ] || {};
            if ( !onlyHandlers && special.trigger && special.trigger.apply( elem, data ) === false ) {
                return;
            }
    
            // Determine event propagation path in advance, per W3C events spec (#9951)
            // Bubble up to document, then to window; watch for a global ownerDocument var (#9724)
            if ( !onlyHandlers && !special.noBubble && !isWindow( elem ) ) {
    
                bubbleType = special.delegateType || type;
                if ( !rfocusMorph.test( bubbleType + type ) ) {
                    cur = cur.parentNode;
                }
                for ( ; cur; cur = cur.parentNode ) {
                    eventPath.push( cur );
                    tmp = cur;
                }
    
                // Only add window if we got to document (e.g., not plain obj or detached DOM)
                if ( tmp === ( elem.ownerDocument || document ) ) {
                    eventPath.push( tmp.defaultView || tmp.parentWindow || window );
                }
            }
    
            // Fire handlers on the event path
            i = 0;
            while ( ( cur = eventPath[ i++ ] ) && !event.isPropagationStopped() ) {
                lastElement = cur;
                event.type = i > 1 ?
                    bubbleType :
                    special.bindType || type;
    
                // jQuery handler
                handle = ( dataPriv.get( cur, "events" ) || {} )[ event.type ] &&
                    dataPriv.get( cur, "handle" );
                if ( handle ) {
                    handle.apply( cur, data );
                }
    
                // Native handler
                handle = ontype && cur[ ontype ];
                if ( handle && handle.apply && acceptData( cur ) ) {
                    event.result = handle.apply( cur, data );
                    if ( event.result === false ) {
                        event.preventDefault();
                    }
                }
            }
            event.type = type;
    
            // If nobody prevented the default action, do it now
            if ( !onlyHandlers && !event.isDefaultPrevented() ) {
    
                if ( ( !special._default ||
                    special._default.apply( eventPath.pop(), data ) === false ) &&
                    acceptData( elem ) ) {
    
                    // Call a native DOM method on the target with the same name as the event.
                    // Don't do default actions on window, that's where global variables be (#6170)
                    if ( ontype && isFunction( elem[ type ] ) && !isWindow( elem ) ) {
    
                        // Don't re-trigger an onFOO event when we call its FOO() method
                        tmp = elem[ ontype ];
    
                        if ( tmp ) {
                            elem[ ontype ] = null;
                        }
    
                        // Prevent re-triggering of the same event, since we already bubbled it above
                        jQuery.event.triggered = type;
    
                        if ( event.isPropagationStopped() ) {
                            lastElement.addEventListener( type, stopPropagationCallback );
                        }
    
                        elem[ type ]();
    
                        if ( event.isPropagationStopped() ) {
                            lastElement.removeEventListener( type, stopPropagationCallback );
                        }
    
                        jQuery.event.triggered = undefined;
    
                        if ( tmp ) {
                            elem[ ontype ] = tmp;
                        }
                    }
                }
            }
    
            return event.result;
        },
    
        // Piggyback on a donor event to simulate a different one
        // Used only for `focus(in | out)` events
        simulate: function( type, elem, event ) {
            var e = jQuery.extend(
                new jQuery.Event(),
                event,
                {
                    type: type,
                    isSimulated: true
                }
            );
    
            jQuery.event.trigger( e, null, elem );
        }
    
    } );
    
    jQuery.fn.extend( {
    
        trigger: function( type, data ) {
            return this.each( function() {
                jQuery.event.trigger( type, data, this );
            } );
        },
        triggerHandler: function( type, data ) {
            var elem = this[ 0 ];
            if ( elem ) {
                return jQuery.event.trigger( type, data, elem, true );
            }
        }
    } );
    
    
    // Support: Firefox <=44
    // Firefox doesn't have focus(in | out) events
    // Related ticket - https://bugzilla.mozilla.org/show_bug.cgi?id=687787
    //
    // Support: Chrome <=48 - 49, Safari <=9.0 - 9.1
    // focus(in | out) events fire after focus & blur events,
    // which is spec violation - http://www.w3.org/TR/DOM-Level-3-Events/#events-focusevent-event-order
    // Related ticket - https://bugs.chromium.org/p/chromium/issues/detail?id=449857
    if ( !support.focusin ) {
        jQuery.each( { focus: "focusin", blur: "focusout" }, function( orig, fix ) {
    
            // Attach a single capturing handler on the document while someone wants focusin/focusout
            var handler = function( event ) {
                jQuery.event.simulate( fix, event.target, jQuery.event.fix( event ) );
            };
    
            jQuery.event.special[ fix ] = {
                setup: function() {
                    var doc = this.ownerDocument || this,
                        attaches = dataPriv.access( doc, fix );
    
                    if ( !attaches ) {
                        doc.addEventListener( orig, handler, true );
                    }
                    dataPriv.access( doc, fix, ( attaches || 0 ) + 1 );
                },
                teardown: function() {
                    var doc = this.ownerDocument || this,
                        attaches = dataPriv.access( doc, fix ) - 1;
    
                    if ( !attaches ) {
                        doc.removeEventListener( orig, handler, true );
                        dataPriv.remove( doc, fix );
    
                    } else {
                        dataPriv.access( doc, fix, attaches );
                    }
                }
            };
        } );
    }
    var location = window.location;
    
    var nonce = Date.now();
    
    var rquery = ( /\?/ );
    
    
    
    // Cross-browser xml parsing
    jQuery.parseXML = function( data ) {
        var xml;
        if ( !data || typeof data !== "string" ) {
            return null;
        }
    
        // Support: IE 9 - 11 only
        // IE throws on parseFromString with invalid input.
        try {
            xml = ( new window.DOMParser() ).parseFromString( data, "text/xml" );
        } catch ( e ) {
            xml = undefined;
        }
    
        if ( !xml || xml.getElementsByTagName( "parsererror" ).length ) {
            jQuery.error( "Invalid XML: " + data );
        }
        return xml;
    };
    
    
    var
        rbracket = /\[\]$/,
        rCRLF = /\r?\n/g,
        rsubmitterTypes = /^(?:submit|button|image|reset|file)$/i,
        rsubmittable = /^(?:input|select|textarea|keygen)/i;
    
    function buildParams( prefix, obj, traditional, add ) {
        var name;
    
        if ( Array.isArray( obj ) ) {
    
            // Serialize array item.
            jQuery.each( obj, function( i, v ) {
                if ( traditional || rbracket.test( prefix ) ) {
    
                    // Treat each array item as a scalar.
                    add( prefix, v );
    
                } else {
    
                    // Item is non-scalar (array or object), encode its numeric index.
                    buildParams(
                        prefix + "[" + ( typeof v === "object" && v != null ? i : "" ) + "]",
                        v,
                        traditional,
                        add
                    );
                }
            } );
    
        } else if ( !traditional && toType( obj ) === "object" ) {
    
            // Serialize object item.
            for ( name in obj ) {
                buildParams( prefix + "[" + name + "]", obj[ name ], traditional, add );
            }
    
        } else {
    
            // Serialize scalar item.
            add( prefix, obj );
        }
    }
    
    // Serialize an array of form elements or a set of
    // key/values into a query string
    jQuery.param = function( a, traditional ) {
        var prefix,
            s = [],
            add = function( key, valueOrFunction ) {
    
                // If value is a function, invoke it and use its return value
                var value = isFunction( valueOrFunction ) ?
                    valueOrFunction() :
                    valueOrFunction;
    
                s[ s.length ] = encodeURIComponent( key ) + "=" +
                    encodeURIComponent( value == null ? "" : value );
            };
    
        if ( a == null ) {
            return "";
        }
    
        // If an array was passed in, assume that it is an array of form elements.
        if ( Array.isArray( a ) || ( a.jquery && !jQuery.isPlainObject( a ) ) ) {
    
            // Serialize the form elements
            jQuery.each( a, function() {
                add( this.name, this.value );
            } );
    
        } else {
    
            // If traditional, encode the "old" way (the way 1.3.2 or older
            // did it), otherwise encode params recursively.
            for ( prefix in a ) {
                buildParams( prefix, a[ prefix ], traditional, add );
            }
        }
    
        // Return the resulting serialization
        return s.join( "&" );
    };
    
    jQuery.fn.extend( {
        serialize: function() {
            return jQuery.param( this.serializeArray() );
        },
        serializeArray: function() {
            return this.map( function() {
    
                // Can add propHook for "elements" to filter or add form elements
                var elements = jQuery.prop( this, "elements" );
                return elements ? jQuery.makeArray( elements ) : this;
            } )
            .filter( function() {
                var type = this.type;
    
                // Use .is( ":disabled" ) so that fieldset[disabled] works
                return this.name && !jQuery( this ).is( ":disabled" ) &&
                    rsubmittable.test( this.nodeName ) && !rsubmitterTypes.test( type ) &&
                    ( this.checked || !rcheckableType.test( type ) );
            } )
            .map( function( i, elem ) {
                var val = jQuery( this ).val();
    
                if ( val == null ) {
                    return null;
                }
    
                if ( Array.isArray( val ) ) {
                    return jQuery.map( val, function( val ) {
                        return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
                    } );
                }
    
                return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
            } ).get();
        }
    } );
    
    
    var
        r20 = /%20/g,
        rhash = /#.*$/,
        rantiCache = /([?&])_=[^&]*/,
        rheaders = /^(.*?):[ \t]*([^\r\n]*)$/mg,
    
        // #7653, #8125, #8152: local protocol detection
        rlocalProtocol = /^(?:about|app|app-storage|.+-extension|file|res|widget):$/,
        rnoContent = /^(?:GET|HEAD)$/,
        rprotocol = /^\/\//,
    
        /* Prefilters
         * 1) They are useful to introduce custom dataTypes (see ajax/jsonp.js for an example)
         * 2) These are called:
         *    - BEFORE asking for a transport
         *    - AFTER param serialization (s.data is a string if s.processData is true)
         * 3) key is the dataType
         * 4) the catchall symbol "*" can be used
         * 5) execution will start with transport dataType and THEN continue down to "*" if needed
         */
        prefilters = {},
    
        /* Transports bindings
         * 1) key is the dataType
         * 2) the catchall symbol "*" can be used
         * 3) selection will start with transport dataType and THEN go to "*" if needed
         */
        transports = {},
    
        // Avoid comment-prolog char sequence (#10098); must appease lint and evade compression
        allTypes = "*/".concat( "*" ),
    
        // Anchor tag for parsing the document origin
        originAnchor = document.createElement( "a" );
        originAnchor.href = location.href;
    
    // Base "constructor" for jQuery.ajaxPrefilter and jQuery.ajaxTransport
    function addToPrefiltersOrTransports( structure ) {
    
        // dataTypeExpression is optional and defaults to "*"
        return function( dataTypeExpression, func ) {
    
            if ( typeof dataTypeExpression !== "string" ) {
                func = dataTypeExpression;
                dataTypeExpression = "*";
            }
    
            var dataType,
                i = 0,
                dataTypes = dataTypeExpression.toLowerCase().match( rnothtmlwhite ) || [];
    
            if ( isFunction( func ) ) {
    
                // For each dataType in the dataTypeExpression
                while ( ( dataType = dataTypes[ i++ ] ) ) {
    
                    // Prepend if requested
                    if ( dataType[ 0 ] === "+" ) {
                        dataType = dataType.slice( 1 ) || "*";
                        ( structure[ dataType ] = structure[ dataType ] || [] ).unshift( func );
    
                    // Otherwise append
                    } else {
                        ( structure[ dataType ] = structure[ dataType ] || [] ).push( func );
                    }
                }
            }
        };
    }
    
    // Base inspection function for prefilters and transports
    function inspectPrefiltersOrTransports( structure, options, originalOptions, jqXHR ) {
    
        var inspected = {},
            seekingTransport = ( structure === transports );
    
        function inspect( dataType ) {
            var selected;
            inspected[ dataType ] = true;
            jQuery.each( structure[ dataType ] || [], function( _, prefilterOrFactory ) {
                var dataTypeOrTransport = prefilterOrFactory( options, originalOptions, jqXHR );
                if ( typeof dataTypeOrTransport === "string" &&
                    !seekingTransport && !inspected[ dataTypeOrTransport ] ) {
    
                    options.dataTypes.unshift( dataTypeOrTransport );
                    inspect( dataTypeOrTransport );
                    return false;
                } else if ( seekingTransport ) {
                    return !( selected = dataTypeOrTransport );
                }
            } );
            return selected;
        }
    
        return inspect( options.dataTypes[ 0 ] ) || !inspected[ "*" ] && inspect( "*" );
    }
    
    // A special extend for ajax options
    // that takes "flat" options (not to be deep extended)
    // Fixes #9887
    function ajaxExtend( target, src ) {
        var key, deep,
            flatOptions = jQuery.ajaxSettings.flatOptions || {};
    
        for ( key in src ) {
            if ( src[ key ] !== undefined ) {
                ( flatOptions[ key ] ? target : ( deep || ( deep = {} ) ) )[ key ] = src[ key ];
            }
        }
        if ( deep ) {
            jQuery.extend( true, target, deep );
        }
    
        return target;
    }
    
    /* Handles responses to an ajax request:
     * - finds the right dataType (mediates between content-type and expected dataType)
     * - returns the corresponding response
     */
    function ajaxHandleResponses( s, jqXHR, responses ) {
    
        var ct, type, finalDataType, firstDataType,
            contents = s.contents,
            dataTypes = s.dataTypes;
    
        // Remove auto dataType and get content-type in the process
        while ( dataTypes[ 0 ] === "*" ) {
            dataTypes.shift();
            if ( ct === undefined ) {
                ct = s.mimeType || jqXHR.getResponseHeader( "Content-Type" );
            }
        }
    
        // Check if we're dealing with a known content-type
        if ( ct ) {
            for ( type in contents ) {
                if ( contents[ type ] && contents[ type ].test( ct ) ) {
                    dataTypes.unshift( type );
                    break;
                }
            }
        }
    
        // Check to see if we have a response for the expected dataType
        if ( dataTypes[ 0 ] in responses ) {
            finalDataType = dataTypes[ 0 ];
        } else {
    
            // Try convertible dataTypes
            for ( type in responses ) {
                if ( !dataTypes[ 0 ] || s.converters[ type + " " + dataTypes[ 0 ] ] ) {
                    finalDataType = type;
                    break;
                }
                if ( !firstDataType ) {
                    firstDataType = type;
                }
            }
    
            // Or just use first one
            finalDataType = finalDataType || firstDataType;
        }
    
        // If we found a dataType
        // We add the dataType to the list if needed
        // and return the corresponding response
        if ( finalDataType ) {
            if ( finalDataType !== dataTypes[ 0 ] ) {
                dataTypes.unshift( finalDataType );
            }
            return responses[ finalDataType ];
        }
    }
    
    /* Chain conversions given the request and the original response
     * Also sets the responseXXX fields on the jqXHR instance
     */
    function ajaxConvert( s, response, jqXHR, isSuccess ) {
        var conv2, current, conv, tmp, prev,
            converters = {},
    
            // Work with a copy of dataTypes in case we need to modify it for conversion
            dataTypes = s.dataTypes.slice();
    
        // Create converters map with lowercased keys
        if ( dataTypes[ 1 ] ) {
            for ( conv in s.converters ) {
                converters[ conv.toLowerCase() ] = s.converters[ conv ];
            }
        }
    
        current = dataTypes.shift();
    
        // Convert to each sequential dataType
        while ( current ) {
    
            if ( s.responseFields[ current ] ) {
                jqXHR[ s.responseFields[ current ] ] = response;
            }
    
            // Apply the dataFilter if provided
            if ( !prev && isSuccess && s.dataFilter ) {
                response = s.dataFilter( response, s.dataType );
            }
    
            prev = current;
            current = dataTypes.shift();
    
            if ( current ) {
    
                // There's only work to do if current dataType is non-auto
                if ( current === "*" ) {
    
                    current = prev;
    
                // Convert response if prev dataType is non-auto and differs from current
                } else if ( prev !== "*" && prev !== current ) {
    
                    // Seek a direct converter
                    conv = converters[ prev + " " + current ] || converters[ "* " + current ];
    
                    // If none found, seek a pair
                    if ( !conv ) {
                        for ( conv2 in converters ) {
    
                            // If conv2 outputs current
                            tmp = conv2.split( " " );
                            if ( tmp[ 1 ] === current ) {
    
                                // If prev can be converted to accepted input
                                conv = converters[ prev + " " + tmp[ 0 ] ] ||
                                    converters[ "* " + tmp[ 0 ] ];
                                if ( conv ) {
    
                                    // Condense equivalence converters
                                    if ( conv === true ) {
                                        conv = converters[ conv2 ];
    
                                    // Otherwise, insert the intermediate dataType
                                    } else if ( converters[ conv2 ] !== true ) {
                                        current = tmp[ 0 ];
                                        dataTypes.unshift( tmp[ 1 ] );
                                    }
                                    break;
                                }
                            }
                        }
                    }
    
                    // Apply converter (if not an equivalence)
                    if ( conv !== true ) {
    
                        // Unless errors are allowed to bubble, catch and return them
                        if ( conv && s.throws ) {
                            response = conv( response );
                        } else {
                            try {
                                response = conv( response );
                            } catch ( e ) {
                                return {
                                    state: "parsererror",
                                    error: conv ? e : "No conversion from " + prev + " to " + current
                                };
                            }
                        }
                    }
                }
            }
        }
    
        return { state: "success", data: response };
    }
    
    jQuery.extend( {
    
        // Counter for holding the number of active queries
        active: 0,
    
        // Last-Modified header cache for next request
        lastModified: {},
        etag: {},
    
        ajaxSettings: {
            url: location.href,
            type: "GET",
            isLocal: rlocalProtocol.test( location.protocol ),
            global: true,
            processData: true,
            async: true,
            contentType: "application/x-www-form-urlencoded; charset=UTF-8",
    
            /*
            timeout: 0,
            data: null,
            dataType: null,
            username: null,
            password: null,
            cache: null,
            throws: false,
            traditional: false,
            headers: {},
            */
    
            accepts: {
                "*": allTypes,
                text: "text/plain",
                html: "text/html",
                xml: "application/xml, text/xml",
                json: "application/json, text/javascript"
            },
    
            contents: {
                xml: /\bxml\b/,
                html: /\bhtml/,
                json: /\bjson\b/
            },
    
            responseFields: {
                xml: "responseXML",
                text: "responseText",
                json: "responseJSON"
            },
    
            // Data converters
            // Keys separate source (or catchall "*") and destination types with a single space
            converters: {
    
                // Convert anything to text
                "* text": String,
    
                // Text to html (true = no transformation)
                "text html": true,
    
                // Evaluate text as a json expression
                "text json": JSON.parse,
    
                // Parse text as xml
                "text xml": jQuery.parseXML
            },
    
            // For options that shouldn't be deep extended:
            // you can add your own custom options here if
            // and when you create one that shouldn't be
            // deep extended (see ajaxExtend)
            flatOptions: {
                url: true,
                context: true
            }
        },
    
        // Creates a full fledged settings object into target
        // with both ajaxSettings and settings fields.
        // If target is omitted, writes into ajaxSettings.
        ajaxSetup: function( target, settings ) {
            return settings ?
    
                // Building a settings object
                ajaxExtend( ajaxExtend( target, jQuery.ajaxSettings ), settings ) :
    
                // Extending ajaxSettings
                ajaxExtend( jQuery.ajaxSettings, target );
        },
    
        ajaxPrefilter: addToPrefiltersOrTransports( prefilters ),
        ajaxTransport: addToPrefiltersOrTransports( transports ),
    
        // Main method
        ajax: function( url, options ) {
    
            // If url is an object, simulate pre-1.5 signature
            if ( typeof url === "object" ) {
                options = url;
                url = undefined;
            }
    
            // Force options to be an object
            options = options || {};
    
            var transport,
    
                // URL without anti-cache param
                cacheURL,
    
                // Response headers
                responseHeadersString,
                responseHeaders,
    
                // timeout handle
                timeoutTimer,
    
                // Url cleanup var
                urlAnchor,
    
                // Request state (becomes false upon send and true upon completion)
                completed,
    
                // To know if global events are to be dispatched
                fireGlobals,
    
                // Loop variable
                i,
    
                // uncached part of the url
                uncached,
    
                // Create the final options object
                s = jQuery.ajaxSetup( {}, options ),
    
                // Callbacks context
                callbackContext = s.context || s,
    
                // Context for global events is callbackContext if it is a DOM node or jQuery collection
                globalEventContext = s.context &&
                    ( callbackContext.nodeType || callbackContext.jquery ) ?
                        jQuery( callbackContext ) :
                        jQuery.event,
    
                // Deferreds
                deferred = jQuery.Deferred(),
                completeDeferred = jQuery.Callbacks( "once memory" ),
    
                // Status-dependent callbacks
                statusCode = s.statusCode || {},
    
                // Headers (they are sent all at once)
                requestHeaders = {},
                requestHeadersNames = {},
    
                // Default abort message
                strAbort = "canceled",
    
                // Fake xhr
                jqXHR = {
                    readyState: 0,
    
                    // Builds headers hashtable if needed
                    getResponseHeader: function( key ) {
                        var match;
                        if ( completed ) {
                            if ( !responseHeaders ) {
                                responseHeaders = {};
                                while ( ( match = rheaders.exec( responseHeadersString ) ) ) {
                                    responseHeaders[ match[ 1 ].toLowerCase() + " " ] =
                                        ( responseHeaders[ match[ 1 ].toLowerCase() + " " ] || [] )
                                            .concat( match[ 2 ] );
                                }
                            }
                            match = responseHeaders[ key.toLowerCase() + " " ];
                        }
                        return match == null ? null : match.join( ", " );
                    },
    
                    // Raw string
                    getAllResponseHeaders: function() {
                        return completed ? responseHeadersString : null;
                    },
    
                    // Caches the header
                    setRequestHeader: function( name, value ) {
                        if ( completed == null ) {
                            name = requestHeadersNames[ name.toLowerCase() ] =
                                requestHeadersNames[ name.toLowerCase() ] || name;
                            requestHeaders[ name ] = value;
                        }
                        return this;
                    },
    
                    // Overrides response content-type header
                    overrideMimeType: function( type ) {
                        if ( completed == null ) {
                            s.mimeType = type;
                        }
                        return this;
                    },
    
                    // Status-dependent callbacks
                    statusCode: function( map ) {
                        var code;
                        if ( map ) {
                            if ( completed ) {
    
                                // Execute the appropriate callbacks
                                jqXHR.always( map[ jqXHR.status ] );
                            } else {
    
                                // Lazy-add the new callbacks in a way that preserves old ones
                                for ( code in map ) {
                                    statusCode[ code ] = [ statusCode[ code ], map[ code ] ];
                                }
                            }
                        }
                        return this;
                    },
    
                    // Cancel the request
                    abort: function( statusText ) {
                        var finalText = statusText || strAbort;
                        if ( transport ) {
                            transport.abort( finalText );
                        }
                        done( 0, finalText );
                        return this;
                    }
                };
    
            // Attach deferreds
            deferred.promise( jqXHR );
    
            // Add protocol if not provided (prefilters might expect it)
            // Handle falsy url in the settings object (#10093: consistency with old signature)
            // We also use the url parameter if available
            s.url = ( ( url || s.url || location.href ) + "" )
                .replace( rprotocol, location.protocol + "//" );
    
            // Alias method option to type as per ticket #12004
            s.type = options.method || options.type || s.method || s.type;
    
            // Extract dataTypes list
            s.dataTypes = ( s.dataType || "*" ).toLowerCase().match( rnothtmlwhite ) || [ "" ];
    
            // A cross-domain request is in order when the origin doesn't match the current origin.
            if ( s.crossDomain == null ) {
                urlAnchor = document.createElement( "a" );
    
                // Support: IE <=8 - 11, Edge 12 - 15
                // IE throws exception on accessing the href property if url is malformed,
                // e.g. http://example.com:80x/
                try {
                    urlAnchor.href = s.url;
    
                    // Support: IE <=8 - 11 only
                    // Anchor's host property isn't correctly set when s.url is relative
                    urlAnchor.href = urlAnchor.href;
                    s.crossDomain = originAnchor.protocol + "//" + originAnchor.host !==
                        urlAnchor.protocol + "//" + urlAnchor.host;
                } catch ( e ) {
    
                    // If there is an error parsing the URL, assume it is crossDomain,
                    // it can be rejected by the transport if it is invalid
                    s.crossDomain = true;
                }
            }
    
            // Convert data if not already a string
            if ( s.data && s.processData && typeof s.data !== "string" ) {
                s.data = jQuery.param( s.data, s.traditional );
            }
    
            // Apply prefilters
            inspectPrefiltersOrTransports( prefilters, s, options, jqXHR );
    
            // If request was aborted inside a prefilter, stop there
            if ( completed ) {
                return jqXHR;
            }
    
            // We can fire global events as of now if asked to
            // Don't fire events if jQuery.event is undefined in an AMD-usage scenario (#15118)
            fireGlobals = jQuery.event && s.global;
    
            // Watch for a new set of requests
            if ( fireGlobals && jQuery.active++ === 0 ) {
                jQuery.event.trigger( "ajaxStart" );
            }
    
            // Uppercase the type
            s.type = s.type.toUpperCase();
    
            // Determine if request has content
            s.hasContent = !rnoContent.test( s.type );
    
            // Save the URL in case we're toying with the If-Modified-Since
            // and/or If-None-Match header later on
            // Remove hash to simplify url manipulation
            cacheURL = s.url.replace( rhash, "" );
    
            // More options handling for requests with no content
            if ( !s.hasContent ) {
    
                // Remember the hash so we can put it back
                uncached = s.url.slice( cacheURL.length );
    
                // If data is available and should be processed, append data to url
                if ( s.data && ( s.processData || typeof s.data === "string" ) ) {
                    cacheURL += ( rquery.test( cacheURL ) ? "&" : "?" ) + s.data;
    
                    // #9682: remove data so that it's not used in an eventual retry
                    delete s.data;
                }
    
                // Add or update anti-cache param if needed
                if ( s.cache === false ) {
                    cacheURL = cacheURL.replace( rantiCache, "$1" );
                    uncached = ( rquery.test( cacheURL ) ? "&" : "?" ) + "_=" + ( nonce++ ) + uncached;
                }
    
                // Put hash and anti-cache on the URL that will be requested (gh-1732)
                s.url = cacheURL + uncached;
    
            // Change '%20' to '+' if this is encoded form body content (gh-2658)
            } else if ( s.data && s.processData &&
                ( s.contentType || "" ).indexOf( "application/x-www-form-urlencoded" ) === 0 ) {
                s.data = s.data.replace( r20, "+" );
            }
    
            // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
            if ( s.ifModified ) {
                if ( jQuery.lastModified[ cacheURL ] ) {
                    jqXHR.setRequestHeader( "If-Modified-Since", jQuery.lastModified[ cacheURL ] );
                }
                if ( jQuery.etag[ cacheURL ] ) {
                    jqXHR.setRequestHeader( "If-None-Match", jQuery.etag[ cacheURL ] );
                }
            }
    
            // Set the correct header, if data is being sent
            if ( s.data && s.hasContent && s.contentType !== false || options.contentType ) {
                jqXHR.setRequestHeader( "Content-Type", s.contentType );
            }
    
            // Set the Accepts header for the server, depending on the dataType
            jqXHR.setRequestHeader(
                "Accept",
                s.dataTypes[ 0 ] && s.accepts[ s.dataTypes[ 0 ] ] ?
                    s.accepts[ s.dataTypes[ 0 ] ] +
                        ( s.dataTypes[ 0 ] !== "*" ? ", " + allTypes + "; q=0.01" : "" ) :
                    s.accepts[ "*" ]
            );
    
            // Check for headers option
            for ( i in s.headers ) {
                jqXHR.setRequestHeader( i, s.headers[ i ] );
            }
    
            // Allow custom headers/mimetypes and early abort
            if ( s.beforeSend &&
                ( s.beforeSend.call( callbackContext, jqXHR, s ) === false || completed ) ) {
    
                // Abort if not done already and return
                return jqXHR.abort();
            }
    
            // Aborting is no longer a cancellation
            strAbort = "abort";
    
            // Install callbacks on deferreds
            completeDeferred.add( s.complete );
            jqXHR.done( s.success );
            jqXHR.fail( s.error );
    
            // Get transport
            transport = inspectPrefiltersOrTransports( transports, s, options, jqXHR );
    
            // If no transport, we auto-abort
            if ( !transport ) {
                done( -1, "No Transport" );
            } else {
                jqXHR.readyState = 1;
    
                // Send global event
                if ( fireGlobals ) {
                    globalEventContext.trigger( "ajaxSend", [ jqXHR, s ] );
                }
    
                // If request was aborted inside ajaxSend, stop there
                if ( completed ) {
                    return jqXHR;
                }
    
                // Timeout
                if ( s.async && s.timeout > 0 ) {
                    timeoutTimer = window.setTimeout( function() {
                        jqXHR.abort( "timeout" );
                    }, s.timeout );
                }
    
                try {
                    completed = false;
                    transport.send( requestHeaders, done );
                } catch ( e ) {
    
                    // Rethrow post-completion exceptions
                    if ( completed ) {
                        throw e;
                    }
    
                    // Propagate others as results
                    done( -1, e );
                }
            }
    
            // Callback for when everything is done
            function done( status, nativeStatusText, responses, headers ) {
                var isSuccess, success, error, response, modified,
                    statusText = nativeStatusText;
    
                // Ignore repeat invocations
                if ( completed ) {
                    return;
                }
    
                completed = true;
    
                // Clear timeout if it exists
                if ( timeoutTimer ) {
                    window.clearTimeout( timeoutTimer );
                }
    
                // Dereference transport for early garbage collection
                // (no matter how long the jqXHR object will be used)
                transport = undefined;
    
                // Cache response headers
                responseHeadersString = headers || "";
    
                // Set readyState
                jqXHR.readyState = status > 0 ? 4 : 0;
    
                // Determine if successful
                isSuccess = status >= 200 && status < 300 || status === 304;
    
                // Get response data
                if ( responses ) {
                    response = ajaxHandleResponses( s, jqXHR, responses );
                }
    
                // Convert no matter what (that way responseXXX fields are always set)
                response = ajaxConvert( s, response, jqXHR, isSuccess );
    
                // If successful, handle type chaining
                if ( isSuccess ) {
    
                    // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
                    if ( s.ifModified ) {
                        modified = jqXHR.getResponseHeader( "Last-Modified" );
                        if ( modified ) {
                            jQuery.lastModified[ cacheURL ] = modified;
                        }
                        modified = jqXHR.getResponseHeader( "etag" );
                        if ( modified ) {
                            jQuery.etag[ cacheURL ] = modified;
                        }
                    }
    
                    // if no content
                    if ( status === 204 || s.type === "HEAD" ) {
                        statusText = "nocontent";
    
                    // if not modified
                    } else if ( status === 304 ) {
                        statusText = "notmodified";
    
                    // If we have data, let's convert it
                    } else {
                        statusText = response.state;
                        success = response.data;
                        error = response.error;
                        isSuccess = !error;
                    }
                } else {
    
                    // Extract error from statusText and normalize for non-aborts
                    error = statusText;
                    if ( status || !statusText ) {
                        statusText = "error";
                        if ( status < 0 ) {
                            status = 0;
                        }
                    }
                }
    
                // Set data for the fake xhr object
                jqXHR.status = status;
                jqXHR.statusText = ( nativeStatusText || statusText ) + "";
    
                // Success/Error
                if ( isSuccess ) {
                    deferred.resolveWith( callbackContext, [ success, statusText, jqXHR ] );
                } else {
                    deferred.rejectWith( callbackContext, [ jqXHR, statusText, error ] );
                }
    
                // Status-dependent callbacks
                jqXHR.statusCode( statusCode );
                statusCode = undefined;
    
                if ( fireGlobals ) {
                    globalEventContext.trigger( isSuccess ? "ajaxSuccess" : "ajaxError",
                        [ jqXHR, s, isSuccess ? success : error ] );
                }
    
                // Complete
                completeDeferred.fireWith( callbackContext, [ jqXHR, statusText ] );
    
                if ( fireGlobals ) {
                    globalEventContext.trigger( "ajaxComplete", [ jqXHR, s ] );
    
                    // Handle the global AJAX counter
                    if ( !( --jQuery.active ) ) {
                        jQuery.event.trigger( "ajaxStop" );
                    }
                }
            }
    
            return jqXHR;
        },
    
        getJSON: function( url, data, callback ) {
            return jQuery.get( url, data, callback, "json" );
        },
    
        getScript: function( url, callback ) {
            return jQuery.get( url, undefined, callback, "script" );
        }
    } );
    
    jQuery.each( [ "get", "post" ], function( i, method ) {
        jQuery[ method ] = function( url, data, callback, type ) {
    
            // Shift arguments if data argument was omitted
            if ( isFunction( data ) ) {
                type = type || callback;
                callback = data;
                data = undefined;
            }
    
            // The url can be an options object (which then must have .url)
            return jQuery.ajax( jQuery.extend( {
                url: url,
                type: method,
                dataType: type,
                data: data,
                success: callback
            }, jQuery.isPlainObject( url ) && url ) );
        };
    } );
    
    
    jQuery._evalUrl = function( url, options ) {
        return jQuery.ajax( {
            url: url,
    
            // Make this explicit, since user can override this through ajaxSetup (#11264)
            type: "GET",
            dataType: "script",
            cache: true,
            async: false,
            global: false,
    
            // Only evaluate the response if it is successful (gh-4126)
            // dataFilter is not invoked for failure responses, so using it instead
            // of the default converter is kludgy but it works.
            converters: {
                "text script": function() {}
            },
            dataFilter: function( response ) {
                jQuery.globalEval( response, options );
            }
        } );
    };
    
    
    jQuery.fn.extend( {
        wrapAll: function( html ) {
            var wrap;
    
            if ( this[ 0 ] ) {
                if ( isFunction( html ) ) {
                    html = html.call( this[ 0 ] );
                }
    
                // The elements to wrap the target around
                wrap = jQuery( html, this[ 0 ].ownerDocument ).eq( 0 ).clone( true );
    
                if ( this[ 0 ].parentNode ) {
                    wrap.insertBefore( this[ 0 ] );
                }
    
                wrap.map( function() {
                    var elem = this;
    
                    while ( elem.firstElementChild ) {
                        elem = elem.firstElementChild;
                    }
    
                    return elem;
                } ).append( this );
            }
    
            return this;
        },
    
        wrapInner: function( html ) {
            if ( isFunction( html ) ) {
                return this.each( function( i ) {
                    jQuery( this ).wrapInner( html.call( this, i ) );
                } );
            }
    
            return this.each( function() {
                var self = jQuery( this ),
                    contents = self.contents();
    
                if ( contents.length ) {
                    contents.wrapAll( html );
    
                } else {
                    self.append( html );
                }
            } );
        },
    
        wrap: function( html ) {
            var htmlIsFunction = isFunction( html );
    
            return this.each( function( i ) {
                jQuery( this ).wrapAll( htmlIsFunction ? html.call( this, i ) : html );
            } );
        },
    
        unwrap: function( selector ) {
            this.parent( selector ).not( "body" ).each( function() {
                jQuery( this ).replaceWith( this.childNodes );
            } );
            return this;
        }
    } );
    
    
    jQuery.expr.pseudos.hidden = function( elem ) {
        return !jQuery.expr.pseudos.visible( elem );
    };
    jQuery.expr.pseudos.visible = function( elem ) {
        return !!( elem.offsetWidth || elem.offsetHeight || elem.getClientRects().length );
    };
    
    
    
    
    jQuery.ajaxSettings.xhr = function() {
        try {
            return new window.XMLHttpRequest();
        } catch ( e ) {}
    };
    
    var xhrSuccessStatus = {
    
            // File protocol always yields status code 0, assume 200
            0: 200,
    
            // Support: IE <=9 only
            // #1450: sometimes IE returns 1223 when it should be 204
            1223: 204
        },
        xhrSupported = jQuery.ajaxSettings.xhr();
    
    support.cors = !!xhrSupported && ( "withCredentials" in xhrSupported );
    support.ajax = xhrSupported = !!xhrSupported;
    
    jQuery.ajaxTransport( function( options ) {
        var callback, errorCallback;
    
        // Cross domain only allowed if supported through XMLHttpRequest
        if ( support.cors || xhrSupported && !options.crossDomain ) {
            return {
                send: function( headers, complete ) {
                    var i,
                        xhr = options.xhr();
    
                    xhr.open(
                        options.type,
                        options.url,
                        options.async,
                        options.username,
                        options.password
                    );
    
                    // Apply custom fields if provided
                    if ( options.xhrFields ) {
                        for ( i in options.xhrFields ) {
                            xhr[ i ] = options.xhrFields[ i ];
                        }
                    }
    
                    // Override mime type if needed
                    if ( options.mimeType && xhr.overrideMimeType ) {
                        xhr.overrideMimeType( options.mimeType );
                    }
    
                    // X-Requested-With header
                    // For cross-domain requests, seeing as conditions for a preflight are
                    // akin to a jigsaw puzzle, we simply never set it to be sure.
                    // (it can always be set on a per-request basis or even using ajaxSetup)
                    // For same-domain requests, won't change header if already provided.
                    if ( !options.crossDomain && !headers[ "X-Requested-With" ] ) {
                        headers[ "X-Requested-With" ] = "XMLHttpRequest";
                    }
    
                    // Set headers
                    for ( i in headers ) {
                        xhr.setRequestHeader( i, headers[ i ] );
                    }
    
                    // Callback
                    callback = function( type ) {
                        return function() {
                            if ( callback ) {
                                callback = errorCallback = xhr.onload =
                                    xhr.onerror = xhr.onabort = xhr.ontimeout =
                                        xhr.onreadystatechange = null;
    
                                if ( type === "abort" ) {
                                    xhr.abort();
                                } else if ( type === "error" ) {
    
                                    // Support: IE <=9 only
                                    // On a manual native abort, IE9 throws
                                    // errors on any property access that is not readyState
                                    if ( typeof xhr.status !== "number" ) {
                                        complete( 0, "error" );
                                    } else {
                                        complete(
    
                                            // File: protocol always yields status 0; see #8605, #14207
                                            xhr.status,
                                            xhr.statusText
                                        );
                                    }
                                } else {
                                    complete(
                                        xhrSuccessStatus[ xhr.status ] || xhr.status,
                                        xhr.statusText,
    
                                        // Support: IE <=9 only
                                        // IE9 has no XHR2 but throws on binary (trac-11426)
                                        // For XHR2 non-text, let the caller handle it (gh-2498)
                                        ( xhr.responseType || "text" ) !== "text"  ||
                                        typeof xhr.responseText !== "string" ?
                                            { binary: xhr.response } :
                                            { text: xhr.responseText },
                                        xhr.getAllResponseHeaders()
                                    );
                                }
                            }
                        };
                    };
    
                    // Listen to events
                    xhr.onload = callback();
                    errorCallback = xhr.onerror = xhr.ontimeout = callback( "error" );
    
                    // Support: IE 9 only
                    // Use onreadystatechange to replace onabort
                    // to handle uncaught aborts
                    if ( xhr.onabort !== undefined ) {
                        xhr.onabort = errorCallback;
                    } else {
                        xhr.onreadystatechange = function() {
    
                            // Check readyState before timeout as it changes
                            if ( xhr.readyState === 4 ) {
    
                                // Allow onerror to be called first,
                                // but that will not handle a native abort
                                // Also, save errorCallback to a variable
                                // as xhr.onerror cannot be accessed
                                window.setTimeout( function() {
                                    if ( callback ) {
                                        errorCallback();
                                    }
                                } );
                            }
                        };
                    }
    
                    // Create the abort callback
                    callback = callback( "abort" );
    
                    try {
    
                        // Do send the request (this may raise an exception)
                        xhr.send( options.hasContent && options.data || null );
                    } catch ( e ) {
    
                        // #14683: Only rethrow if this hasn't been notified as an error yet
                        if ( callback ) {
                            throw e;
                        }
                    }
                },
    
                abort: function() {
                    if ( callback ) {
                        callback();
                    }
                }
            };
        }
    } );
    
    
    
    
    // Prevent auto-execution of scripts when no explicit dataType was provided (See gh-2432)
    jQuery.ajaxPrefilter( function( s ) {
        if ( s.crossDomain ) {
            s.contents.script = false;
        }
    } );
    
    // Install script dataType
    jQuery.ajaxSetup( {
        accepts: {
            script: "text/javascript, application/javascript, " +
                "application/ecmascript, application/x-ecmascript"
        },
        contents: {
            script: /\b(?:java|ecma)script\b/
        },
        converters: {
            "text script": function( text ) {
                jQuery.globalEval( text );
                return text;
            }
        }
    } );
    
    // Handle cache's special case and crossDomain
    jQuery.ajaxPrefilter( "script", function( s ) {
        if ( s.cache === undefined ) {
            s.cache = false;
        }
        if ( s.crossDomain ) {
            s.type = "GET";
        }
    } );
    
    // Bind script tag hack transport
    jQuery.ajaxTransport( "script", function( s ) {
    
        // This transport only deals with cross domain or forced-by-attrs requests
        if ( s.crossDomain || s.scriptAttrs ) {
            var script, callback;
            return {
                send: function( _, complete ) {
                    script = jQuery( "<script>" )
                        .attr( s.scriptAttrs || {} )
                        .prop( { charset: s.scriptCharset, src: s.url } )
                        .on( "load error", callback = function( evt ) {
                            script.remove();
                            callback = null;
                            if ( evt ) {
                                complete( evt.type === "error" ? 404 : 200, evt.type );
                            }
                        } );
    
                    // Use native DOM manipulation to avoid our domManip AJAX trickery
                    document.head.appendChild( script[ 0 ] );
                },
                abort: function() {
                    if ( callback ) {
                        callback();
                    }
                }
            };
        }
    } );
    
    
    
    
    var oldCallbacks = [],
        rjsonp = /(=)\?(?=&|$)|\?\?/;
    
    // Default jsonp settings
    jQuery.ajaxSetup( {
        jsonp: "callback",
        jsonpCallback: function() {
            var callback = oldCallbacks.pop() || ( jQuery.expando + "_" + ( nonce++ ) );
            this[ callback ] = true;
            return callback;
        }
    } );
    
    // Detect, normalize options and install callbacks for jsonp requests
    jQuery.ajaxPrefilter( "json jsonp", function( s, originalSettings, jqXHR ) {
    
        var callbackName, overwritten, responseContainer,
            jsonProp = s.jsonp !== false && ( rjsonp.test( s.url ) ?
                "url" :
                typeof s.data === "string" &&
                    ( s.contentType || "" )
                        .indexOf( "application/x-www-form-urlencoded" ) === 0 &&
                    rjsonp.test( s.data ) && "data"
            );
    
        // Handle iff the expected data type is "jsonp" or we have a parameter to set
        if ( jsonProp || s.dataTypes[ 0 ] === "jsonp" ) {
    
            // Get callback name, remembering preexisting value associated with it
            callbackName = s.jsonpCallback = isFunction( s.jsonpCallback ) ?
                s.jsonpCallback() :
                s.jsonpCallback;
    
            // Insert callback into url or form data
            if ( jsonProp ) {
                s[ jsonProp ] = s[ jsonProp ].replace( rjsonp, "$1" + callbackName );
            } else if ( s.jsonp !== false ) {
                s.url += ( rquery.test( s.url ) ? "&" : "?" ) + s.jsonp + "=" + callbackName;
            }
    
            // Use data converter to retrieve json after script execution
            s.converters[ "script json" ] = function() {
                if ( !responseContainer ) {
                    jQuery.error( callbackName + " was not called" );
                }
                return responseContainer[ 0 ];
            };
    
            // Force json dataType
            s.dataTypes[ 0 ] = "json";
    
            // Install callback
            overwritten = window[ callbackName ];
            window[ callbackName ] = function() {
                responseContainer = arguments;
            };
    
            // Clean-up function (fires after converters)
            jqXHR.always( function() {
    
                // If previous value didn't exist - remove it
                if ( overwritten === undefined ) {
                    jQuery( window ).removeProp( callbackName );
    
                // Otherwise restore preexisting value
                } else {
                    window[ callbackName ] = overwritten;
                }
    
                // Save back as free
                if ( s[ callbackName ] ) {
    
                    // Make sure that re-using the options doesn't screw things around
                    s.jsonpCallback = originalSettings.jsonpCallback;
    
                    // Save the callback name for future use
                    oldCallbacks.push( callbackName );
                }
    
                // Call if it was a function and we have a response
                if ( responseContainer && isFunction( overwritten ) ) {
                    overwritten( responseContainer[ 0 ] );
                }
    
                responseContainer = overwritten = undefined;
            } );
    
            // Delegate to script
            return "script";
        }
    } );
    
    
    
    
    // Support: Safari 8 only
    // In Safari 8 documents created via document.implementation.createHTMLDocument
    // collapse sibling forms: the second one becomes a child of the first one.
    // Because of that, this security measure has to be disabled in Safari 8.
    // https://bugs.webkit.org/show_bug.cgi?id=137337
    support.createHTMLDocument = ( function() {
        var body = document.implementation.createHTMLDocument( "" ).body;
        body.innerHTML = "<form></form><form></form>";
        return body.childNodes.length === 2;
    } )();
    
    
    // Argument "data" should be string of html
    // context (optional): If specified, the fragment will be created in this context,
    // defaults to document
    // keepScripts (optional): If true, will include scripts passed in the html string
    jQuery.parseHTML = function( data, context, keepScripts ) {
        if ( typeof data !== "string" ) {
            return [];
        }
        if ( typeof context === "boolean" ) {
            keepScripts = context;
            context = false;
        }
    
        var base, parsed, scripts;
    
        if ( !context ) {
    
            // Stop scripts or inline event handlers from being executed immediately
            // by using document.implementation
            if ( support.createHTMLDocument ) {
                context = document.implementation.createHTMLDocument( "" );
    
                // Set the base href for the created document
                // so any parsed elements with URLs
                // are based on the document's URL (gh-2965)
                base = context.createElement( "base" );
                base.href = document.location.href;
                context.head.appendChild( base );
            } else {
                context = document;
            }
        }
    
        parsed = rsingleTag.exec( data );
        scripts = !keepScripts && [];
    
        // Single tag
        if ( parsed ) {
            return [ context.createElement( parsed[ 1 ] ) ];
        }
    
        parsed = buildFragment( [ data ], context, scripts );
    
        if ( scripts && scripts.length ) {
            jQuery( scripts ).remove();
        }
    
        return jQuery.merge( [], parsed.childNodes );
    };
    
    
    /**
     * Load a url into a page
     */
    jQuery.fn.load = function( url, params, callback ) {
        var selector, type, response,
            self = this,
            off = url.indexOf( " " );
    
        if ( off > -1 ) {
            selector = stripAndCollapse( url.slice( off ) );
            url = url.slice( 0, off );
        }
    
        // If it's a function
        if ( isFunction( params ) ) {
    
            // We assume that it's the callback
            callback = params;
            params = undefined;
    
        // Otherwise, build a param string
        } else if ( params && typeof params === "object" ) {
            type = "POST";
        }
    
        // If we have elements to modify, make the request
        if ( self.length > 0 ) {
            jQuery.ajax( {
                url: url,
    
                // If "type" variable is undefined, then "GET" method will be used.
                // Make value of this field explicit since
                // user can override it through ajaxSetup method
                type: type || "GET",
                dataType: "html",
                data: params
            } ).done( function( responseText ) {
    
                // Save response for use in complete callback
                response = arguments;
    
                self.html( selector ?
    
                    // If a selector was specified, locate the right elements in a dummy div
                    // Exclude scripts to avoid IE 'Permission Denied' errors
                    jQuery( "<div>" ).append( jQuery.parseHTML( responseText ) ).find( selector ) :
    
                    // Otherwise use the full result
                    responseText );
    
            // If the request succeeds, this function gets "data", "status", "jqXHR"
            // but they are ignored because response was set above.
            // If it fails, this function gets "jqXHR", "status", "error"
            } ).always( callback && function( jqXHR, status ) {
                self.each( function() {
                    callback.apply( this, response || [ jqXHR.responseText, status, jqXHR ] );
                } );
            } );
        }
    
        return this;
    };
    
    
    
    
    // Attach a bunch of functions for handling common AJAX events
    jQuery.each( [
        "ajaxStart",
        "ajaxStop",
        "ajaxComplete",
        "ajaxError",
        "ajaxSuccess",
        "ajaxSend"
    ], function( i, type ) {
        jQuery.fn[ type ] = function( fn ) {
            return this.on( type, fn );
        };
    } );
    
    
    
    
    jQuery.expr.pseudos.animated = function( elem ) {
        return jQuery.grep( jQuery.timers, function( fn ) {
            return elem === fn.elem;
        } ).length;
    };
    
    
    
    
    jQuery.offset = {
        setOffset: function( elem, options, i ) {
            var curPosition, curLeft, curCSSTop, curTop, curOffset, curCSSLeft, calculatePosition,
                position = jQuery.css( elem, "position" ),
                curElem = jQuery( elem ),
                props = {};
    
            // Set position first, in-case top/left are set even on static elem
            if ( position === "static" ) {
                elem.style.position = "relative";
            }
    
            curOffset = curElem.offset();
            curCSSTop = jQuery.css( elem, "top" );
            curCSSLeft = jQuery.css( elem, "left" );
            calculatePosition = ( position === "absolute" || position === "fixed" ) &&
                ( curCSSTop + curCSSLeft ).indexOf( "auto" ) > -1;
    
            // Need to be able to calculate position if either
            // top or left is auto and position is either absolute or fixed
            if ( calculatePosition ) {
                curPosition = curElem.position();
                curTop = curPosition.top;
                curLeft = curPosition.left;
    
            } else {
                curTop = parseFloat( curCSSTop ) || 0;
                curLeft = parseFloat( curCSSLeft ) || 0;
            }
    
            if ( isFunction( options ) ) {
    
                // Use jQuery.extend here to allow modification of coordinates argument (gh-1848)
                options = options.call( elem, i, jQuery.extend( {}, curOffset ) );
            }
    
            if ( options.top != null ) {
                props.top = ( options.top - curOffset.top ) + curTop;
            }
            if ( options.left != null ) {
                props.left = ( options.left - curOffset.left ) + curLeft;
            }
    
            if ( "using" in options ) {
                options.using.call( elem, props );
    
            } else {
                curElem.css( props );
            }
        }
    };
    
    jQuery.fn.extend( {
    
        // offset() relates an element's border box to the document origin
        offset: function( options ) {
    
            // Preserve chaining for setter
            if ( arguments.length ) {
                return options === undefined ?
                    this :
                    this.each( function( i ) {
                        jQuery.offset.setOffset( this, options, i );
                    } );
            }
    
            var rect, win,
                elem = this[ 0 ];
    
            if ( !elem ) {
                return;
            }
    
            // Return zeros for disconnected and hidden (display: none) elements (gh-2310)
            // Support: IE <=11 only
            // Running getBoundingClientRect on a
            // disconnected node in IE throws an error
            if ( !elem.getClientRects().length ) {
                return { top: 0, left: 0 };
            }
    
            // Get document-relative position by adding viewport scroll to viewport-relative gBCR
            rect = elem.getBoundingClientRect();
            win = elem.ownerDocument.defaultView;
            return {
                top: rect.top + win.pageYOffset,
                left: rect.left + win.pageXOffset
            };
        },
    
        // position() relates an element's margin box to its offset parent's padding box
        // This corresponds to the behavior of CSS absolute positioning
        position: function() {
            if ( !this[ 0 ] ) {
                return;
            }
    
            var offsetParent, offset, doc,
                elem = this[ 0 ],
                parentOffset = { top: 0, left: 0 };
    
            // position:fixed elements are offset from the viewport, which itself always has zero offset
            if ( jQuery.css( elem, "position" ) === "fixed" ) {
    
                // Assume position:fixed implies availability of getBoundingClientRect
                offset = elem.getBoundingClientRect();
    
            } else {
                offset = this.offset();
    
                // Account for the *real* offset parent, which can be the document or its root element
                // when a statically positioned element is identified
                doc = elem.ownerDocument;
                offsetParent = elem.offsetParent || doc.documentElement;
                while ( offsetParent &&
                    ( offsetParent === doc.body || offsetParent === doc.documentElement ) &&
                    jQuery.css( offsetParent, "position" ) === "static" ) {
    
                    offsetParent = offsetParent.parentNode;
                }
                if ( offsetParent && offsetParent !== elem && offsetParent.nodeType === 1 ) {
    
                    // Incorporate borders into its offset, since they are outside its content origin
                    parentOffset = jQuery( offsetParent ).offset();
                    parentOffset.top += jQuery.css( offsetParent, "borderTopWidth", true );
                    parentOffset.left += jQuery.css( offsetParent, "borderLeftWidth", true );
                }
            }
    
            // Subtract parent offsets and element margins
            return {
                top: offset.top - parentOffset.top - jQuery.css( elem, "marginTop", true ),
                left: offset.left - parentOffset.left - jQuery.css( elem, "marginLeft", true )
            };
        },
    
        // This method will return documentElement in the following cases:
        // 1) For the element inside the iframe without offsetParent, this method will return
        //    documentElement of the parent window
        // 2) For the hidden or detached element
        // 3) For body or html element, i.e. in case of the html node - it will return itself
        //
        // but those exceptions were never presented as a real life use-cases
        // and might be considered as more preferable results.
        //
        // This logic, however, is not guaranteed and can change at any point in the future
        offsetParent: function() {
            return this.map( function() {
                var offsetParent = this.offsetParent;
    
                while ( offsetParent && jQuery.css( offsetParent, "position" ) === "static" ) {
                    offsetParent = offsetParent.offsetParent;
                }
    
                return offsetParent || documentElement;
            } );
        }
    } );
    
    // Create scrollLeft and scrollTop methods
    jQuery.each( { scrollLeft: "pageXOffset", scrollTop: "pageYOffset" }, function( method, prop ) {
        var top = "pageYOffset" === prop;
    
        jQuery.fn[ method ] = function( val ) {
            return access( this, function( elem, method, val ) {
    
                // Coalesce documents and windows
                var win;
                if ( isWindow( elem ) ) {
                    win = elem;
                } else if ( elem.nodeType === 9 ) {
                    win = elem.defaultView;
                }
    
                if ( val === undefined ) {
                    return win ? win[ prop ] : elem[ method ];
                }
    
                if ( win ) {
                    win.scrollTo(
                        !top ? val : win.pageXOffset,
                        top ? val : win.pageYOffset
                    );
    
                } else {
                    elem[ method ] = val;
                }
            }, method, val, arguments.length );
        };
    } );
    
    // Support: Safari <=7 - 9.1, Chrome <=37 - 49
    // Add the top/left cssHooks using jQuery.fn.position
    // Webkit bug: https://bugs.webkit.org/show_bug.cgi?id=29084
    // Blink bug: https://bugs.chromium.org/p/chromium/issues/detail?id=589347
    // getComputedStyle returns percent when specified for top/left/bottom/right;
    // rather than make the css module depend on the offset module, just check for it here
    jQuery.each( [ "top", "left" ], function( i, prop ) {
        jQuery.cssHooks[ prop ] = addGetHookIf( support.pixelPosition,
            function( elem, computed ) {
                if ( computed ) {
                    computed = curCSS( elem, prop );
    
                    // If curCSS returns percentage, fallback to offset
                    return rnumnonpx.test( computed ) ?
                        jQuery( elem ).position()[ prop ] + "px" :
                        computed;
                }
            }
        );
    } );
    
    
    // Create innerHeight, innerWidth, height, width, outerHeight and outerWidth methods
    jQuery.each( { Height: "height", Width: "width" }, function( name, type ) {
        jQuery.each( { padding: "inner" + name, content: type, "": "outer" + name },
            function( defaultExtra, funcName ) {
    
            // Margin is only for outerHeight, outerWidth
            jQuery.fn[ funcName ] = function( margin, value ) {
                var chainable = arguments.length && ( defaultExtra || typeof margin !== "boolean" ),
                    extra = defaultExtra || ( margin === true || value === true ? "margin" : "border" );
    
                return access( this, function( elem, type, value ) {
                    var doc;
    
                    if ( isWindow( elem ) ) {
    
                        // $( window ).outerWidth/Height return w/h including scrollbars (gh-1729)
                        return funcName.indexOf( "outer" ) === 0 ?
                            elem[ "inner" + name ] :
                            elem.document.documentElement[ "client" + name ];
                    }
    
                    // Get document width or height
                    if ( elem.nodeType === 9 ) {
                        doc = elem.documentElement;
    
                        // Either scroll[Width/Height] or offset[Width/Height] or client[Width/Height],
                        // whichever is greatest
                        return Math.max(
                            elem.body[ "scroll" + name ], doc[ "scroll" + name ],
                            elem.body[ "offset" + name ], doc[ "offset" + name ],
                            doc[ "client" + name ]
                        );
                    }
    
                    return value === undefined ?
    
                        // Get width or height on the element, requesting but not forcing parseFloat
                        jQuery.css( elem, type, extra ) :
    
                        // Set width or height on the element
                        jQuery.style( elem, type, value, extra );
                }, type, chainable ? margin : undefined, chainable );
            };
        } );
    } );
    
    
    jQuery.each( ( "blur focus focusin focusout resize scroll click dblclick " +
        "mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave " +
        "change select submit keydown keypress keyup contextmenu" ).split( " " ),
        function( i, name ) {
    
        // Handle event binding
        jQuery.fn[ name ] = function( data, fn ) {
            return arguments.length > 0 ?
                this.on( name, null, data, fn ) :
                this.trigger( name );
        };
    } );
    
    jQuery.fn.extend( {
        hover: function( fnOver, fnOut ) {
            return this.mouseenter( fnOver ).mouseleave( fnOut || fnOver );
        }
    } );
    
    
    
    
    jQuery.fn.extend( {
    
        bind: function( types, data, fn ) {
            return this.on( types, null, data, fn );
        },
        unbind: function( types, fn ) {
            return this.off( types, null, fn );
        },
    
        delegate: function( selector, types, data, fn ) {
            return this.on( types, selector, data, fn );
        },
        undelegate: function( selector, types, fn ) {
    
            // ( namespace ) or ( selector, types [, fn] )
            return arguments.length === 1 ?
                this.off( selector, "**" ) :
                this.off( types, selector || "**", fn );
        }
    } );
    
    // Bind a function to a context, optionally partially applying any
    // arguments.
    // jQuery.proxy is deprecated to promote standards (specifically Function#bind)
    // However, it is not slated for removal any time soon
    jQuery.proxy = function( fn, context ) {
        var tmp, args, proxy;
    
        if ( typeof context === "string" ) {
            tmp = fn[ context ];
            context = fn;
            fn = tmp;
        }
    
        // Quick check to determine if target is callable, in the spec
        // this throws a TypeError, but we will just return undefined.
        if ( !isFunction( fn ) ) {
            return undefined;
        }
    
        // Simulated bind
        args = slice.call( arguments, 2 );
        proxy = function() {
            return fn.apply( context || this, args.concat( slice.call( arguments ) ) );
        };
    
        // Set the guid of unique handler to the same of original handler, so it can be removed
        proxy.guid = fn.guid = fn.guid || jQuery.guid++;
    
        return proxy;
    };
    
    jQuery.holdReady = function( hold ) {
        if ( hold ) {
            jQuery.readyWait++;
        } else {
            jQuery.ready( true );
        }
    };
    jQuery.isArray = Array.isArray;
    jQuery.parseJSON = JSON.parse;
    jQuery.nodeName = nodeName;
    jQuery.isFunction = isFunction;
    jQuery.isWindow = isWindow;
    jQuery.camelCase = camelCase;
    jQuery.type = toType;
    
    jQuery.now = Date.now;
    
    jQuery.isNumeric = function( obj ) {
    
        // As of jQuery 3.0, isNumeric is limited to
        // strings and numbers (primitives or objects)
        // that can be coerced to finite numbers (gh-2662)
        var type = jQuery.type( obj );
        return ( type === "number" || type === "string" ) &&
    
            // parseFloat NaNs numeric-cast false positives ("")
            // ...but misinterprets leading-number strings, particularly hex literals ("0x...")
            // subtraction forces infinities to NaN
            !isNaN( obj - parseFloat( obj ) );
    };
    
    
    
    
    // Register as a named AMD module, since jQuery can be concatenated with other
    // files that may use define, but not via a proper concatenation script that
    // understands anonymous AMD modules. A named AMD is safest and most robust
    // way to register. Lowercase jquery is used because AMD module names are
    // derived from file names, and jQuery is normally delivered in a lowercase
    // file name. Do this after creating the global so that if an AMD module wants
    // to call noConflict to hide this version of jQuery, it will work.
    
    // Note that for maximum portability, libraries that are not jQuery should
    // declare themselves as anonymous modules, and avoid setting a global if an
    // AMD loader is present. jQuery is a special case. For more information, see
    // https://github.com/jrburke/requirejs/wiki/Updating-existing-libraries#wiki-anon
    
    if ( true ) {
        !(__WEBPACK_AMD_DEFINE_ARRAY__ = [], __WEBPACK_AMD_DEFINE_RESULT__ = (function() {
            return jQuery;
        }).apply(exports, __WEBPACK_AMD_DEFINE_ARRAY__),
                    __WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__));
    }
    
    
    
    
    var
    
        // Map over jQuery in case of overwrite
        _jQuery = window.jQuery,
    
        // Map over the $ in case of overwrite
        _$ = window.$;
    
    jQuery.noConflict = function( deep ) {
        if ( window.$ === jQuery ) {
            window.$ = _$;
        }
    
        if ( deep && window.jQuery === jQuery ) {
            window.jQuery = _jQuery;
        }
    
        return jQuery;
    };
    
    // Expose jQuery and $ identifiers, even in AMD
    // (#7102#comment:10, https://github.com/jquery/jquery/pull/557)
    // and CommonJS for browser emulators (#13566)
    if ( !noGlobal ) {
        window.jQuery = window.$ = jQuery;
    }
    
    
    
    
    return jQuery;
    } );
    
    
    /***/ }),
    
    /***/ "./node_modules/lodash/lodash.js":
    /*!***************************************!*\
      !*** ./node_modules/lodash/lodash.js ***!
      \***************************************/
    /*! no static exports found */
    /***/ (function(module, exports, __webpack_require__) {
    
    /* WEBPACK VAR INJECTION */(function(global, module) {var __WEBPACK_AMD_DEFINE_RESULT__;/**
     * @license
     * Lodash <https://lodash.com/>
     * Copyright OpenJS Foundation and other contributors <https://openjsf.org/>
     * Released under MIT license <https://lodash.com/license>
     * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
     * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
     */
    ;(function() {
    
      /** Used as a safe reference for `undefined` in pre-ES5 environments. */
      var undefined;
    
      /** Used as the semantic version number. */
      var VERSION = '4.17.15';
    
      /** Used as the size to enable large array optimizations. */
      var LARGE_ARRAY_SIZE = 200;
    
      /** Error message constants. */
      var CORE_ERROR_TEXT = 'Unsupported core-js use. Try https://npms.io/search?q=ponyfill.',
          FUNC_ERROR_TEXT = 'Expected a function';
    
      /** Used to stand-in for `undefined` hash values. */
      var HASH_UNDEFINED = '__lodash_hash_undefined__';
    
      /** Used as the maximum memoize cache size. */
      var MAX_MEMOIZE_SIZE = 500;
    
      /** Used as the internal argument placeholder. */
      var PLACEHOLDER = '__lodash_placeholder__';
    
      /** Used to compose bitmasks for cloning. */
      var CLONE_DEEP_FLAG = 1,
          CLONE_FLAT_FLAG = 2,
          CLONE_SYMBOLS_FLAG = 4;
    
      /** Used to compose bitmasks for value comparisons. */
      var COMPARE_PARTIAL_FLAG = 1,
          COMPARE_UNORDERED_FLAG = 2;
    
      /** Used to compose bitmasks for function metadata. */
      var WRAP_BIND_FLAG = 1,
          WRAP_BIND_KEY_FLAG = 2,
          WRAP_CURRY_BOUND_FLAG = 4,
          WRAP_CURRY_FLAG = 8,
          WRAP_CURRY_RIGHT_FLAG = 16,
          WRAP_PARTIAL_FLAG = 32,
          WRAP_PARTIAL_RIGHT_FLAG = 64,
          WRAP_ARY_FLAG = 128,
          WRAP_REARG_FLAG = 256,
          WRAP_FLIP_FLAG = 512;
    
      /** Used as default options for `_.truncate`. */
      var DEFAULT_TRUNC_LENGTH = 30,
          DEFAULT_TRUNC_OMISSION = '...';
    
      /** Used to detect hot functions by number of calls within a span of milliseconds. */
      var HOT_COUNT = 800,
          HOT_SPAN = 16;
    
      /** Used to indicate the type of lazy iteratees. */
      var LAZY_FILTER_FLAG = 1,
          LAZY_MAP_FLAG = 2,
          LAZY_WHILE_FLAG = 3;
    
      /** Used as references for various `Number` constants. */
      var INFINITY = 1 / 0,
          MAX_SAFE_INTEGER = 9007199254740991,
          MAX_INTEGER = 1.7976931348623157e+308,
          NAN = 0 / 0;
    
      /** Used as references for the maximum length and index of an array. */
      var MAX_ARRAY_LENGTH = 4294967295,
          MAX_ARRAY_INDEX = MAX_ARRAY_LENGTH - 1,
          HALF_MAX_ARRAY_LENGTH = MAX_ARRAY_LENGTH >>> 1;
    
      /** Used to associate wrap methods with their bit flags. */
      var wrapFlags = [
        ['ary', WRAP_ARY_FLAG],
        ['bind', WRAP_BIND_FLAG],
        ['bindKey', WRAP_BIND_KEY_FLAG],
        ['curry', WRAP_CURRY_FLAG],
        ['curryRight', WRAP_CURRY_RIGHT_FLAG],
        ['flip', WRAP_FLIP_FLAG],
        ['partial', WRAP_PARTIAL_FLAG],
        ['partialRight', WRAP_PARTIAL_RIGHT_FLAG],
        ['rearg', WRAP_REARG_FLAG]
      ];
    
      /** `Object#toString` result references. */
      var argsTag = '[object Arguments]',
          arrayTag = '[object Array]',
          asyncTag = '[object AsyncFunction]',
          boolTag = '[object Boolean]',
          dateTag = '[object Date]',
          domExcTag = '[object DOMException]',
          errorTag = '[object Error]',
          funcTag = '[object Function]',
          genTag = '[object GeneratorFunction]',
          mapTag = '[object Map]',
          numberTag = '[object Number]',
          nullTag = '[object Null]',
          objectTag = '[object Object]',
          promiseTag = '[object Promise]',
          proxyTag = '[object Proxy]',
          regexpTag = '[object RegExp]',
          setTag = '[object Set]',
          stringTag = '[object String]',
          symbolTag = '[object Symbol]',
          undefinedTag = '[object Undefined]',
          weakMapTag = '[object WeakMap]',
          weakSetTag = '[object WeakSet]';
    
      var arrayBufferTag = '[object ArrayBuffer]',
          dataViewTag = '[object DataView]',
          float32Tag = '[object Float32Array]',
          float64Tag = '[object Float64Array]',
          int8Tag = '[object Int8Array]',
          int16Tag = '[object Int16Array]',
          int32Tag = '[object Int32Array]',
          uint8Tag = '[object Uint8Array]',
          uint8ClampedTag = '[object Uint8ClampedArray]',
          uint16Tag = '[object Uint16Array]',
          uint32Tag = '[object Uint32Array]';
    
      /** Used to match empty string literals in compiled template source. */
      var reEmptyStringLeading = /\b__p \+= '';/g,
          reEmptyStringMiddle = /\b(__p \+=) '' \+/g,
          reEmptyStringTrailing = /(__e\(.*?\)|\b__t\)) \+\n'';/g;
    
      /** Used to match HTML entities and HTML characters. */
      var reEscapedHtml = /&(?:amp|lt|gt|quot|#39);/g,
          reUnescapedHtml = /[&<>"']/g,
          reHasEscapedHtml = RegExp(reEscapedHtml.source),
          reHasUnescapedHtml = RegExp(reUnescapedHtml.source);
    
      /** Used to match template delimiters. */
      var reEscape = /<%-([\s\S]+?)%>/g,
          reEvaluate = /<%([\s\S]+?)%>/g,
          reInterpolate = /<%=([\s\S]+?)%>/g;
    
      /** Used to match property names within property paths. */
      var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/,
          reIsPlainProp = /^\w*$/,
          rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|$))/g;
    
      /**
       * Used to match `RegExp`
       * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).
       */
      var reRegExpChar = /[\\^$.*+?()[\]{}|]/g,
          reHasRegExpChar = RegExp(reRegExpChar.source);
    
      /** Used to match leading and trailing whitespace. */
      var reTrim = /^\s+|\s+$/g,
          reTrimStart = /^\s+/,
          reTrimEnd = /\s+$/;
    
      /** Used to match wrap detail comments. */
      var reWrapComment = /\{(?:\n\/\* \[wrapped with .+\] \*\/)?\n?/,
          reWrapDetails = /\{\n\/\* \[wrapped with (.+)\] \*/,
          reSplitDetails = /,? & /;
    
      /** Used to match words composed of alphanumeric characters. */
      var reAsciiWord = /[^\x00-\x2f\x3a-\x40\x5b-\x60\x7b-\x7f]+/g;
    
      /** Used to match backslashes in property paths. */
      var reEscapeChar = /\\(\\)?/g;
    
      /**
       * Used to match
       * [ES template delimiters](http://ecma-international.org/ecma-262/7.0/#sec-template-literal-lexical-components).
       */
      var reEsTemplate = /\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g;
    
      /** Used to match `RegExp` flags from their coerced string values. */
      var reFlags = /\w*$/;
    
      /** Used to detect bad signed hexadecimal string values. */
      var reIsBadHex = /^[-+]0x[0-9a-f]+$/i;
    
      /** Used to detect binary string values. */
      var reIsBinary = /^0b[01]+$/i;
    
      /** Used to detect host constructors (Safari). */
      var reIsHostCtor = /^\[object .+?Constructor\]$/;
    
      /** Used to detect octal string values. */
      var reIsOctal = /^0o[0-7]+$/i;
    
      /** Used to detect unsigned integer values. */
      var reIsUint = /^(?:0|[1-9]\d*)$/;
    
      /** Used to match Latin Unicode letters (excluding mathematical operators). */
      var reLatin = /[\xc0-\xd6\xd8-\xf6\xf8-\xff\u0100-\u017f]/g;
    
      /** Used to ensure capturing order of template delimiters. */
      var reNoMatch = /($^)/;
    
      /** Used to match unescaped characters in compiled string literals. */
      var reUnescapedString = /['\n\r\u2028\u2029\\]/g;
    
      /** Used to compose unicode character classes. */
      var rsAstralRange = '\\ud800-\\udfff',
          rsComboMarksRange = '\\u0300-\\u036f',
          reComboHalfMarksRange = '\\ufe20-\\ufe2f',
          rsComboSymbolsRange = '\\u20d0-\\u20ff',
          rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange,
          rsDingbatRange = '\\u2700-\\u27bf',
          rsLowerRange = 'a-z\\xdf-\\xf6\\xf8-\\xff',
          rsMathOpRange = '\\xac\\xb1\\xd7\\xf7',
          rsNonCharRange = '\\x00-\\x2f\\x3a-\\x40\\x5b-\\x60\\x7b-\\xbf',
          rsPunctuationRange = '\\u2000-\\u206f',
          rsSpaceRange = ' \\t\\x0b\\f\\xa0\\ufeff\\n\\r\\u2028\\u2029\\u1680\\u180e\\u2000\\u2001\\u2002\\u2003\\u2004\\u2005\\u2006\\u2007\\u2008\\u2009\\u200a\\u202f\\u205f\\u3000',
          rsUpperRange = 'A-Z\\xc0-\\xd6\\xd8-\\xde',
          rsVarRange = '\\ufe0e\\ufe0f',
          rsBreakRange = rsMathOpRange + rsNonCharRange + rsPunctuationRange + rsSpaceRange;
    
      /** Used to compose unicode capture groups. */
      var rsApos = "['\u2019]",
          rsAstral = '[' + rsAstralRange + ']',
          rsBreak = '[' + rsBreakRange + ']',
          rsCombo = '[' + rsComboRange + ']',
          rsDigits = '\\d+',
          rsDingbat = '[' + rsDingbatRange + ']',
          rsLower = '[' + rsLowerRange + ']',
          rsMisc = '[^' + rsAstralRange + rsBreakRange + rsDigits + rsDingbatRange + rsLowerRange + rsUpperRange + ']',
          rsFitz = '\\ud83c[\\udffb-\\udfff]',
          rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')',
          rsNonAstral = '[^' + rsAstralRange + ']',
          rsRegional = '(?:\\ud83c[\\udde6-\\uddff]){2}',
          rsSurrPair = '[\\ud800-\\udbff][\\udc00-\\udfff]',
          rsUpper = '[' + rsUpperRange + ']',
          rsZWJ = '\\u200d';
    
      /** Used to compose unicode regexes. */
      var rsMiscLower = '(?:' + rsLower + '|' + rsMisc + ')',
          rsMiscUpper = '(?:' + rsUpper + '|' + rsMisc + ')',
          rsOptContrLower = '(?:' + rsApos + '(?:d|ll|m|re|s|t|ve))?',
          rsOptContrUpper = '(?:' + rsApos + '(?:D|LL|M|RE|S|T|VE))?',
          reOptMod = rsModifier + '?',
          rsOptVar = '[' + rsVarRange + ']?',
          rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*',
          rsOrdLower = '\\d*(?:1st|2nd|3rd|(?![123])\\dth)(?=\\b|[A-Z_])',
          rsOrdUpper = '\\d*(?:1ST|2ND|3RD|(?![123])\\dTH)(?=\\b|[a-z_])',
          rsSeq = rsOptVar + reOptMod + rsOptJoin,
          rsEmoji = '(?:' + [rsDingbat, rsRegional, rsSurrPair].join('|') + ')' + rsSeq,
          rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')';
    
      /** Used to match apostrophes. */
      var reApos = RegExp(rsApos, 'g');
    
      /**
       * Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks) and
       * [combining diacritical marks for symbols](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks_for_Symbols).
       */
      var reComboMark = RegExp(rsCombo, 'g');
    
      /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */
      var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g');
    
      /** Used to match complex or compound words. */
      var reUnicodeWord = RegExp([
        rsUpper + '?' + rsLower + '+' + rsOptContrLower + '(?=' + [rsBreak, rsUpper, '$'].join('|') + ')',
        rsMiscUpper + '+' + rsOptContrUpper + '(?=' + [rsBreak, rsUpper + rsMiscLower, '$'].join('|') + ')',
        rsUpper + '?' + rsMiscLower + '+' + rsOptContrLower,
        rsUpper + '+' + rsOptContrUpper,
        rsOrdUpper,
        rsOrdLower,
        rsDigits,
        rsEmoji
      ].join('|'), 'g');
    
      /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */
      var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange  + rsComboRange + rsVarRange + ']');
    
      /** Used to detect strings that need a more robust regexp to match words. */
      var reHasUnicodeWord = /[a-z][A-Z]|[A-Z]{2}[a-z]|[0-9][a-zA-Z]|[a-zA-Z][0-9]|[^a-zA-Z0-9 ]/;
    
      /** Used to assign default `context` object properties. */
      var contextProps = [
        'Array', 'Buffer', 'DataView', 'Date', 'Error', 'Float32Array', 'Float64Array',
        'Function', 'Int8Array', 'Int16Array', 'Int32Array', 'Map', 'Math', 'Object',
        'Promise', 'RegExp', 'Set', 'String', 'Symbol', 'TypeError', 'Uint8Array',
        'Uint8ClampedArray', 'Uint16Array', 'Uint32Array', 'WeakMap',
        '_', 'clearTimeout', 'isFinite', 'parseInt', 'setTimeout'
      ];
    
      /** Used to make template sourceURLs easier to identify. */
      var templateCounter = -1;
    
      /** Used to identify `toStringTag` values of typed arrays. */
      var typedArrayTags = {};
      typedArrayTags[float32Tag] = typedArrayTags[float64Tag] =
      typedArrayTags[int8Tag] = typedArrayTags[int16Tag] =
      typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =
      typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =
      typedArrayTags[uint32Tag] = true;
      typedArrayTags[argsTag] = typedArrayTags[arrayTag] =
      typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =
      typedArrayTags[dataViewTag] = typedArrayTags[dateTag] =
      typedArrayTags[errorTag] = typedArrayTags[funcTag] =
      typedArrayTags[mapTag] = typedArrayTags[numberTag] =
      typedArrayTags[objectTag] = typedArrayTags[regexpTag] =
      typedArrayTags[setTag] = typedArrayTags[stringTag] =
      typedArrayTags[weakMapTag] = false;
    
      /** Used to identify `toStringTag` values supported by `_.clone`. */
      var cloneableTags = {};
      cloneableTags[argsTag] = cloneableTags[arrayTag] =
      cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] =
      cloneableTags[boolTag] = cloneableTags[dateTag] =
      cloneableTags[float32Tag] = cloneableTags[float64Tag] =
      cloneableTags[int8Tag] = cloneableTags[int16Tag] =
      cloneableTags[int32Tag] = cloneableTags[mapTag] =
      cloneableTags[numberTag] = cloneableTags[objectTag] =
      cloneableTags[regexpTag] = cloneableTags[setTag] =
      cloneableTags[stringTag] = cloneableTags[symbolTag] =
      cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] =
      cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true;
      cloneableTags[errorTag] = cloneableTags[funcTag] =
      cloneableTags[weakMapTag] = false;
    
      /** Used to map Latin Unicode letters to basic Latin letters. */
      var deburredLetters = {
        // Latin-1 Supplement block.
        '\xc0': 'A',  '\xc1': 'A', '\xc2': 'A', '\xc3': 'A', '\xc4': 'A', '\xc5': 'A',
        '\xe0': 'a',  '\xe1': 'a', '\xe2': 'a', '\xe3': 'a', '\xe4': 'a', '\xe5': 'a',
        '\xc7': 'C',  '\xe7': 'c',
        '\xd0': 'D',  '\xf0': 'd',
        '\xc8': 'E',  '\xc9': 'E', '\xca': 'E', '\xcb': 'E',
        '\xe8': 'e',  '\xe9': 'e', '\xea': 'e', '\xeb': 'e',
        '\xcc': 'I',  '\xcd': 'I', '\xce': 'I', '\xcf': 'I',
        '\xec': 'i',  '\xed': 'i', '\xee': 'i', '\xef': 'i',
        '\xd1': 'N',  '\xf1': 'n',
        '\xd2': 'O',  '\xd3': 'O', '\xd4': 'O', '\xd5': 'O', '\xd6': 'O', '\xd8': 'O',
        '\xf2': 'o',  '\xf3': 'o', '\xf4': 'o', '\xf5': 'o', '\xf6': 'o', '\xf8': 'o',
        '\xd9': 'U',  '\xda': 'U', '\xdb': 'U', '\xdc': 'U',
        '\xf9': 'u',  '\xfa': 'u', '\xfb': 'u', '\xfc': 'u',
        '\xdd': 'Y',  '\xfd': 'y', '\xff': 'y',
        '\xc6': 'Ae', '\xe6': 'ae',
        '\xde': 'Th', '\xfe': 'th',
        '\xdf': 'ss',
        // Latin Extended-A block.
        '\u0100': 'A',  '\u0102': 'A', '\u0104': 'A',
        '\u0101': 'a',  '\u0103': 'a', '\u0105': 'a',
        '\u0106': 'C',  '\u0108': 'C', '\u010a': 'C', '\u010c': 'C',
        '\u0107': 'c',  '\u0109': 'c', '\u010b': 'c', '\u010d': 'c',
        '\u010e': 'D',  '\u0110': 'D', '\u010f': 'd', '\u0111': 'd',
        '\u0112': 'E',  '\u0114': 'E', '\u0116': 'E', '\u0118': 'E', '\u011a': 'E',
        '\u0113': 'e',  '\u0115': 'e', '\u0117': 'e', '\u0119': 'e', '\u011b': 'e',
        '\u011c': 'G',  '\u011e': 'G', '\u0120': 'G', '\u0122': 'G',
        '\u011d': 'g',  '\u011f': 'g', '\u0121': 'g', '\u0123': 'g',
        '\u0124': 'H',  '\u0126': 'H', '\u0125': 'h', '\u0127': 'h',
        '\u0128': 'I',  '\u012a': 'I', '\u012c': 'I', '\u012e': 'I', '\u0130': 'I',
        '\u0129': 'i',  '\u012b': 'i', '\u012d': 'i', '\u012f': 'i', '\u0131': 'i',
        '\u0134': 'J',  '\u0135': 'j',
        '\u0136': 'K',  '\u0137': 'k', '\u0138': 'k',
        '\u0139': 'L',  '\u013b': 'L', '\u013d': 'L', '\u013f': 'L', '\u0141': 'L',
        '\u013a': 'l',  '\u013c': 'l', '\u013e': 'l', '\u0140': 'l', '\u0142': 'l',
        '\u0143': 'N',  '\u0145': 'N', '\u0147': 'N', '\u014a': 'N',
        '\u0144': 'n',  '\u0146': 'n', '\u0148': 'n', '\u014b': 'n',
        '\u014c': 'O',  '\u014e': 'O', '\u0150': 'O',
        '\u014d': 'o',  '\u014f': 'o', '\u0151': 'o',
        '\u0154': 'R',  '\u0156': 'R', '\u0158': 'R',
        '\u0155': 'r',  '\u0157': 'r', '\u0159': 'r',
        '\u015a': 'S',  '\u015c': 'S', '\u015e': 'S', '\u0160': 'S',
        '\u015b': 's',  '\u015d': 's', '\u015f': 's', '\u0161': 's',
        '\u0162': 'T',  '\u0164': 'T', '\u0166': 'T',
        '\u0163': 't',  '\u0165': 't', '\u0167': 't',
        '\u0168': 'U',  '\u016a': 'U', '\u016c': 'U', '\u016e': 'U', '\u0170': 'U', '\u0172': 'U',
        '\u0169': 'u',  '\u016b': 'u', '\u016d': 'u', '\u016f': 'u', '\u0171': 'u', '\u0173': 'u',
        '\u0174': 'W',  '\u0175': 'w',
        '\u0176': 'Y',  '\u0177': 'y', '\u0178': 'Y',
        '\u0179': 'Z',  '\u017b': 'Z', '\u017d': 'Z',
        '\u017a': 'z',  '\u017c': 'z', '\u017e': 'z',
        '\u0132': 'IJ', '\u0133': 'ij',
        '\u0152': 'Oe', '\u0153': 'oe',
        '\u0149': "'n", '\u017f': 's'
      };
    
      /** Used to map characters to HTML entities. */
      var htmlEscapes = {
        '&': '&amp;',
        '<': '&lt;',
        '>': '&gt;',
        '"': '&quot;',
        "'": '&#39;'
      };
    
      /** Used to map HTML entities to characters. */
      var htmlUnescapes = {
        '&amp;': '&',
        '&lt;': '<',
        '&gt;': '>',
        '&quot;': '"',
        '&#39;': "'"
      };
    
      /** Used to escape characters for inclusion in compiled string literals. */
      var stringEscapes = {
        '\\': '\\',
        "'": "'",
        '\n': 'n',
        '\r': 'r',
        '\u2028': 'u2028',
        '\u2029': 'u2029'
      };
    
      /** Built-in method references without a dependency on `root`. */
      var freeParseFloat = parseFloat,
          freeParseInt = parseInt;
    
      /** Detect free variable `global` from Node.js. */
      var freeGlobal = typeof global == 'object' && global && global.Object === Object && global;
    
      /** Detect free variable `self`. */
      var freeSelf = typeof self == 'object' && self && self.Object === Object && self;
    
      /** Used as a reference to the global object. */
      var root = freeGlobal || freeSelf || Function('return this')();
    
      /** Detect free variable `exports`. */
      var freeExports =  true && exports && !exports.nodeType && exports;
    
      /** Detect free variable `module`. */
      var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;
    
      /** Detect the popular CommonJS extension `module.exports`. */
      var moduleExports = freeModule && freeModule.exports === freeExports;
    
      /** Detect free variable `process` from Node.js. */
      var freeProcess = moduleExports && freeGlobal.process;
    
      /** Used to access faster Node.js helpers. */
      var nodeUtil = (function() {
        try {
          // Use `util.types` for Node.js 10+.
          var types = freeModule && freeModule.require && freeModule.require('util').types;
    
          if (types) {
            return types;
          }
    
          // Legacy `process.binding('util')` for Node.js < 10.
          return freeProcess && freeProcess.binding && freeProcess.binding('util');
        } catch (e) {}
      }());
    
      /* Node.js helper references. */
      var nodeIsArrayBuffer = nodeUtil && nodeUtil.isArrayBuffer,
          nodeIsDate = nodeUtil && nodeUtil.isDate,
          nodeIsMap = nodeUtil && nodeUtil.isMap,
          nodeIsRegExp = nodeUtil && nodeUtil.isRegExp,
          nodeIsSet = nodeUtil && nodeUtil.isSet,
          nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray;
    
      /*--------------------------------------------------------------------------*/
    
      /**
       * A faster alternative to `Function#apply`, this function invokes `func`
       * with the `this` binding of `thisArg` and the arguments of `args`.
       *
       * @private
       * @param {Function} func The function to invoke.
       * @param {*} thisArg The `this` binding of `func`.
       * @param {Array} args The arguments to invoke `func` with.
       * @returns {*} Returns the result of `func`.
       */
      function apply(func, thisArg, args) {
        switch (args.length) {
          case 0: return func.call(thisArg);
          case 1: return func.call(thisArg, args[0]);
          case 2: return func.call(thisArg, args[0], args[1]);
          case 3: return func.call(thisArg, args[0], args[1], args[2]);
        }
        return func.apply(thisArg, args);
      }
    
      /**
       * A specialized version of `baseAggregator` for arrays.
       *
       * @private
       * @param {Array} [array] The array to iterate over.
       * @param {Function} setter The function to set `accumulator` values.
       * @param {Function} iteratee The iteratee to transform keys.
       * @param {Object} accumulator The initial aggregated object.
       * @returns {Function} Returns `accumulator`.
       */
      function arrayAggregator(array, setter, iteratee, accumulator) {
        var index = -1,
            length = array == null ? 0 : array.length;
    
        while (++index < length) {
          var value = array[index];
          setter(accumulator, value, iteratee(value), array);
        }
        return accumulator;
      }
    
      /**
       * A specialized version of `_.forEach` for arrays without support for
       * iteratee shorthands.
       *
       * @private
       * @param {Array} [array] The array to iterate over.
       * @param {Function} iteratee The function invoked per iteration.
       * @returns {Array} Returns `array`.
       */
      function arrayEach(array, iteratee) {
        var index = -1,
            length = array == null ? 0 : array.length;
    
        while (++index < length) {
          if (iteratee(array[index], index, array) === false) {
            break;
          }
        }
        return array;
      }
    
      /**
       * A specialized version of `_.forEachRight` for arrays without support for
       * iteratee shorthands.
       *
       * @private
       * @param {Array} [array] The array to iterate over.
       * @param {Function} iteratee The function invoked per iteration.
       * @returns {Array} Returns `array`.
       */
      function arrayEachRight(array, iteratee) {
        var length = array == null ? 0 : array.length;
    
        while (length--) {
          if (iteratee(array[length], length, array) === false) {
            break;
          }
        }
        return array;
      }
    
      /**
       * A specialized version of `_.every` for arrays without support for
       * iteratee shorthands.
       *
       * @private
       * @param {Array} [array] The array to iterate over.
       * @param {Function} predicate The function invoked per iteration.
       * @returns {boolean} Returns `true` if all elements pass the predicate check,
       *  else `false`.
       */
      function arrayEvery(array, predicate) {
        var index = -1,
            length = array == null ? 0 : array.length;
    
        while (++index < length) {
          if (!predicate(array[index], index, array)) {
            return false;
          }
        }
        return true;
      }
    
      /**
       * A specialized version of `_.filter` for arrays without support for
       * iteratee shorthands.
       *
       * @private
       * @param {Array} [array] The array to iterate over.
       * @param {Function} predicate The function invoked per iteration.
       * @returns {Array} Returns the new filtered array.
       */
      function arrayFilter(array, predicate) {
        var index = -1,
            length = array == null ? 0 : array.length,
            resIndex = 0,
            result = [];
    
        while (++index < length) {
          var value = array[index];
          if (predicate(value, index, array)) {
            result[resIndex++] = value;
          }
        }
        return result;
      }
    
      /**
       * A specialized version of `_.includes` for arrays without support for
       * specifying an index to search from.
       *
       * @private
       * @param {Array} [array] The array to inspect.
       * @param {*} target The value to search for.
       * @returns {boolean} Returns `true` if `target` is found, else `false`.
       */
      function arrayIncludes(array, value) {
        var length = array == null ? 0 : array.length;
        return !!length && baseIndexOf(array, value, 0) > -1;
      }
    
      /**
       * This function is like `arrayIncludes` except that it accepts a comparator.
       *
       * @private
       * @param {Array} [array] The array to inspect.
       * @param {*} target The value to search for.
       * @param {Function} comparator The comparator invoked per element.
       * @returns {boolean} Returns `true` if `target` is found, else `false`.
       */
      function arrayIncludesWith(array, value, comparator) {
        var index = -1,
            length = array == null ? 0 : array.length;
    
        while (++index < length) {
          if (comparator(value, array[index])) {
            return true;
          }
        }
        return false;
      }
    
      /**
       * A specialized version of `_.map` for arrays without support for iteratee
       * shorthands.
       *
       * @private
       * @param {Array} [array] The array to iterate over.
       * @param {Function} iteratee The function invoked per iteration.
       * @returns {Array} Returns the new mapped array.
       */
      function arrayMap(array, iteratee) {
        var index = -1,
            length = array == null ? 0 : array.length,
            result = Array(length);
    
        while (++index < length) {
          result[index] = iteratee(array[index], index, array);
        }
        return result;
      }
    
      /**
       * Appends the elements of `values` to `array`.
       *
       * @private
       * @param {Array} array The array to modify.
       * @param {Array} values The values to append.
       * @returns {Array} Returns `array`.
       */
      function arrayPush(array, values) {
        var index = -1,
            length = values.length,
            offset = array.length;
    
        while (++index < length) {
          array[offset + index] = values[index];
        }
        return array;
      }
    
      /**
       * A specialized version of `_.reduce` for arrays without support for
       * iteratee shorthands.
       *
       * @private
       * @param {Array} [array] The array to iterate over.
       * @param {Function} iteratee The function invoked per iteration.
       * @param {*} [accumulator] The initial value.
       * @param {boolean} [initAccum] Specify using the first element of `array` as
       *  the initial value.
       * @returns {*} Returns the accumulated value.
       */
      function arrayReduce(array, iteratee, accumulator, initAccum) {
        var index = -1,
            length = array == null ? 0 : array.length;
    
        if (initAccum && length) {
          accumulator = array[++index];
        }
        while (++index < length) {
          accumulator = iteratee(accumulator, array[index], index, array);
        }
        return accumulator;
      }
    
      /**
       * A specialized version of `_.reduceRight` for arrays without support for
       * iteratee shorthands.
       *
       * @private
       * @param {Array} [array] The array to iterate over.
       * @param {Function} iteratee The function invoked per iteration.
       * @param {*} [accumulator] The initial value.
       * @param {boolean} [initAccum] Specify using the last element of `array` as
       *  the initial value.
       * @returns {*} Returns the accumulated value.
       */
      function arrayReduceRight(array, iteratee, accumulator, initAccum) {
        var length = array == null ? 0 : array.length;
        if (initAccum && length) {
          accumulator = array[--length];
        }
        while (length--) {
          accumulator = iteratee(accumulator, array[length], length, array);
        }
        return accumulator;
      }
    
      /**
       * A specialized version of `_.some` for arrays without support for iteratee
       * shorthands.
       *
       * @private
       * @param {Array} [array] The array to iterate over.
       * @param {Function} predicate The function invoked per iteration.
       * @returns {boolean} Returns `true` if any element passes the predicate check,
       *  else `false`.
       */
      function arraySome(array, predicate) {
        var index = -1,
            length = array == null ? 0 : array.length;
    
        while (++index < length) {
          if (predicate(array[index], index, array)) {
            return true;
          }
        }
        return false;
      }
    
      /**
       * Gets the size of an ASCII `string`.
       *
       * @private
       * @param {string} string The string inspect.
       * @returns {number} Returns the string size.
       */
      var asciiSize = baseProperty('length');
    
      /**
       * Converts an ASCII `string` to an array.
       *
       * @private
       * @param {string} string The string to convert.
       * @returns {Array} Returns the converted array.
       */
      function asciiToArray(string) {
        return string.split('');
      }
    
      /**
       * Splits an ASCII `string` into an array of its words.
       *
       * @private
       * @param {string} The string to inspect.
       * @returns {Array} Returns the words of `string`.
       */
      function asciiWords(string) {
        return string.match(reAsciiWord) || [];
      }
    
      /**
       * The base implementation of methods like `_.findKey` and `_.findLastKey`,
       * without support for iteratee shorthands, which iterates over `collection`
       * using `eachFunc`.
       *
       * @private
       * @param {Array|Object} collection The collection to inspect.
       * @param {Function} predicate The function invoked per iteration.
       * @param {Function} eachFunc The function to iterate over `collection`.
       * @returns {*} Returns the found element or its key, else `undefined`.
       */
      function baseFindKey(collection, predicate, eachFunc) {
        var result;
        eachFunc(collection, function(value, key, collection) {
          if (predicate(value, key, collection)) {
            result = key;
            return false;
          }
        });
        return result;
      }
    
      /**
       * The base implementation of `_.findIndex` and `_.findLastIndex` without
       * support for iteratee shorthands.
       *
       * @private
       * @param {Array} array The array to inspect.
       * @param {Function} predicate The function invoked per iteration.
       * @param {number} fromIndex The index to search from.
       * @param {boolean} [fromRight] Specify iterating from right to left.
       * @returns {number} Returns the index of the matched value, else `-1`.
       */
      function baseFindIndex(array, predicate, fromIndex, fromRight) {
        var length = array.length,
            index = fromIndex + (fromRight ? 1 : -1);
    
        while ((fromRight ? index-- : ++index < length)) {
          if (predicate(array[index], index, array)) {
            return index;
          }
        }
        return -1;
      }
    
      /**
       * The base implementation of `_.indexOf` without `fromIndex` bounds checks.
       *
       * @private
       * @param {Array} array The array to inspect.
       * @param {*} value The value to search for.
       * @param {number} fromIndex The index to search from.
       * @returns {number} Returns the index of the matched value, else `-1`.
       */
      function baseIndexOf(array, value, fromIndex) {
        return value === value
          ? strictIndexOf(array, value, fromIndex)
          : baseFindIndex(array, baseIsNaN, fromIndex);
      }
    
      /**
       * This function is like `baseIndexOf` except that it accepts a comparator.
       *
       * @private
       * @param {Array} array The array to inspect.
       * @param {*} value The value to search for.
       * @param {number} fromIndex The index to search from.
       * @param {Function} comparator The comparator invoked per element.
       * @returns {number} Returns the index of the matched value, else `-1`.
       */
      function baseIndexOfWith(array, value, fromIndex, comparator) {
        var index = fromIndex - 1,
            length = array.length;
    
        while (++index < length) {
          if (comparator(array[index], value)) {
            return index;
          }
        }
        return -1;
      }
    
      /**
       * The base implementation of `_.isNaN` without support for number objects.
       *
       * @private
       * @param {*} value The value to check.
       * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.
       */
      function baseIsNaN(value) {
        return value !== value;
      }
    
      /**
       * The base implementation of `_.mean` and `_.meanBy` without support for
       * iteratee shorthands.
       *
       * @private
       * @param {Array} array The array to iterate over.
       * @param {Function} iteratee The function invoked per iteration.
       * @returns {number} Returns the mean.
       */
      function baseMean(array, iteratee) {
        var length = array == null ? 0 : array.length;
        return length ? (baseSum(array, iteratee) / length) : NAN;
      }
    
      /**
       * The base implementation of `_.property` without support for deep paths.
       *
       * @private
       * @param {string} key The key of the property to get.
       * @returns {Function} Returns the new accessor function.
       */
      function baseProperty(key) {
        return function(object) {
          return object == null ? undefined : object[key];
        };
      }
    
      /**
       * The base implementation of `_.propertyOf` without support for deep paths.
       *
       * @private
       * @param {Object} object The object to query.
       * @returns {Function} Returns the new accessor function.
       */
      function basePropertyOf(object) {
        return function(key) {
          return object == null ? undefined : object[key];
        };
      }
    
      /**
       * The base implementation of `_.reduce` and `_.reduceRight`, without support
       * for iteratee shorthands, which iterates over `collection` using `eachFunc`.
       *
       * @private
       * @param {Array|Object} collection The collection to iterate over.
       * @param {Function} iteratee The function invoked per iteration.
       * @param {*} accumulator The initial value.
       * @param {boolean} initAccum Specify using the first or last element of
       *  `collection` as the initial value.
       * @param {Function} eachFunc The function to iterate over `collection`.
       * @returns {*} Returns the accumulated value.
       */
      function baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) {
        eachFunc(collection, function(value, index, collection) {
          accumulator = initAccum
            ? (initAccum = false, value)
            : iteratee(accumulator, value, index, collection);
        });
        return accumulator;
      }
    
      /**
       * The base implementation of `_.sortBy` which uses `comparer` to define the
       * sort order of `array` and replaces criteria objects with their corresponding
       * values.
       *
       * @private
       * @param {Array} array The array to sort.
       * @param {Function} comparer The function to define sort order.
       * @returns {Array} Returns `array`.
       */
      function baseSortBy(array, comparer) {
        var length = array.length;
    
        array.sort(comparer);
        while (length--) {
          array[length] = array[length].value;
        }
        return array;
      }
    
      /**
       * The base implementation of `_.sum` and `_.sumBy` without support for
       * iteratee shorthands.
       *
       * @private
       * @param {Array} array The array to iterate over.
       * @param {Function} iteratee The function invoked per iteration.
       * @returns {number} Returns the sum.
       */
      function baseSum(array, iteratee) {
        var result,
            index = -1,
            length = array.length;
    
        while (++index < length) {
          var current = iteratee(array[index]);
          if (current !== undefined) {
            result = result === undefined ? current : (result + current);
          }
        }
        return result;
      }
    
      /**
       * The base implementation of `_.times` without support for iteratee shorthands
       * or max array length checks.
       *
       * @private
       * @param {number} n The number of times to invoke `iteratee`.
       * @param {Function} iteratee The function invoked per iteration.
       * @returns {Array} Returns the array of results.
       */
      function baseTimes(n, iteratee) {
        var index = -1,
            result = Array(n);
    
        while (++index < n) {
          result[index] = iteratee(index);
        }
        return result;
      }
    
      /**
       * The base implementation of `_.toPairs` and `_.toPairsIn` which creates an array
       * of key-value pairs for `object` corresponding to the property names of `props`.
       *
       * @private
       * @param {Object} object The object to query.
       * @param {Array} props The property names to get values for.
       * @returns {Object} Returns the key-value pairs.
       */
      function baseToPairs(object, props) {
        return arrayMap(props, function(key) {
          return [key, object[key]];
        });
      }
    
      /**
       * The base implementation of `_.unary` without support for storing metadata.
       *
       * @private
       * @param {Function} func The function to cap arguments for.
       * @returns {Function} Returns the new capped function.
       */
      function baseUnary(func) {
        return function(value) {
          return func(value);
        };
      }
    
      /**
       * The base implementation of `_.values` and `_.valuesIn` which creates an
       * array of `object` property values corresponding to the property names
       * of `props`.
       *
       * @private
       * @param {Object} object The object to query.
       * @param {Array} props The property names to get values for.
       * @returns {Object} Returns the array of property values.
       */
      function baseValues(object, props) {
        return arrayMap(props, function(key) {
          return object[key];
        });
      }
    
      /**
       * Checks if a `cache` value for `key` exists.
       *
       * @private
       * @param {Object} cache The cache to query.
       * @param {string} key The key of the entry to check.
       * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
       */
      function cacheHas(cache, key) {
        return cache.has(key);
      }
    
      /**
       * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol
       * that is not found in the character symbols.
       *
       * @private
       * @param {Array} strSymbols The string symbols to inspect.
       * @param {Array} chrSymbols The character symbols to find.
       * @returns {number} Returns the index of the first unmatched string symbol.
       */
      function charsStartIndex(strSymbols, chrSymbols) {
        var index = -1,
            length = strSymbols.length;
    
        while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}
        return index;
      }
    
      /**
       * Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol
       * that is not found in the character symbols.
       *
       * @private
       * @param {Array} strSymbols The string symbols to inspect.
       * @param {Array} chrSymbols The character symbols to find.
       * @returns {number} Returns the index of the last unmatched string symbol.
       */
      function charsEndIndex(strSymbols, chrSymbols) {
        var index = strSymbols.length;
    
        while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}
        return index;
      }
    
      /**
       * Gets the number of `placeholder` occurrences in `array`.
       *
       * @private
       * @param {Array} array The array to inspect.
       * @param {*} placeholder The placeholder to search for.
       * @returns {number} Returns the placeholder count.
       */
      function countHolders(array, placeholder) {
        var length = array.length,
            result = 0;
    
        while (length--) {
          if (array[length] === placeholder) {
            ++result;
          }
        }
        return result;
      }
    
      /**
       * Used by `_.deburr` to convert Latin-1 Supplement and Latin Extended-A
       * letters to basic Latin letters.
       *
       * @private
       * @param {string} letter The matched letter to deburr.
       * @returns {string} Returns the deburred letter.
       */
      var deburrLetter = basePropertyOf(deburredLetters);
    
      /**
       * Used by `_.escape` to convert characters to HTML entities.
       *
       * @private
       * @param {string} chr The matched character to escape.
       * @returns {string} Returns the escaped character.
       */
      var escapeHtmlChar = basePropertyOf(htmlEscapes);
    
      /**
       * Used by `_.template` to escape characters for inclusion in compiled string literals.
       *
       * @private
       * @param {string} chr The matched character to escape.
       * @returns {string} Returns the escaped character.
       */
      function escapeStringChar(chr) {
        return '\\' + stringEscapes[chr];
      }
    
      /**
       * Gets the value at `key` of `object`.
       *
       * @private
       * @param {Object} [object] The object to query.
       * @param {string} key The key of the property to get.
       * @returns {*} Returns the property value.
       */
      function getValue(object, key) {
        return object == null ? undefined : object[key];
      }
    
      /**
       * Checks if `string` contains Unicode symbols.
       *
       * @private
       * @param {string} string The string to inspect.
       * @returns {boolean} Returns `true` if a symbol is found, else `false`.
       */
      function hasUnicode(string) {
        return reHasUnicode.test(string);
      }
    
      /**
       * Checks if `string` contains a word composed of Unicode symbols.
       *
       * @private
       * @param {string} string The string to inspect.
       * @returns {boolean} Returns `true` if a word is found, else `false`.
       */
      function hasUnicodeWord(string) {
        return reHasUnicodeWord.test(string);
      }
    
      /**
       * Converts `iterator` to an array.
       *
       * @private
       * @param {Object} iterator The iterator to convert.
       * @returns {Array} Returns the converted array.
       */
      function iteratorToArray(iterator) {
        var data,
            result = [];
    
        while (!(data = iterator.next()).done) {
          result.push(data.value);
        }
        return result;
      }
    
      /**
       * Converts `map` to its key-value pairs.
       *
       * @private
       * @param {Object} map The map to convert.
       * @returns {Array} Returns the key-value pairs.
       */
      function mapToArray(map) {
        var index = -1,
            result = Array(map.size);
    
        map.forEach(function(value, key) {
          result[++index] = [key, value];
        });
        return result;
      }
    
      /**
       * Creates a unary function that invokes `func` with its argument transformed.
       *
       * @private
       * @param {Function} func The function to wrap.
       * @param {Function} transform The argument transform.
       * @returns {Function} Returns the new function.
       */
      function overArg(func, transform) {
        return function(arg) {
          return func(transform(arg));
        };
      }
    
      /**
       * Replaces all `placeholder` elements in `array` with an internal placeholder
       * and returns an array of their indexes.
       *
       * @private
       * @param {Array} array The array to modify.
       * @param {*} placeholder The placeholder to replace.
       * @returns {Array} Returns the new array of placeholder indexes.
       */
      function replaceHolders(array, placeholder) {
        var index = -1,
            length = array.length,
            resIndex = 0,
            result = [];
    
        while (++index < length) {
          var value = array[index];
          if (value === placeholder || value === PLACEHOLDER) {
            array[index] = PLACEHOLDER;
            result[resIndex++] = index;
          }
        }
        return result;
      }
    
      /**
       * Converts `set` to an array of its values.
       *
       * @private
       * @param {Object} set The set to convert.
       * @returns {Array} Returns the values.
       */
      function setToArray(set) {
        var index = -1,
            result = Array(set.size);
    
        set.forEach(function(value) {
          result[++index] = value;
        });
        return result;
      }
    
      /**
       * Converts `set` to its value-value pairs.
       *
       * @private
       * @param {Object} set The set to convert.
       * @returns {Array} Returns the value-value pairs.
       */
      function setToPairs(set) {
        var index = -1,
            result = Array(set.size);
    
        set.forEach(function(value) {
          result[++index] = [value, value];
        });
        return result;
      }
    
      /**
       * A specialized version of `_.indexOf` which performs strict equality
       * comparisons of values, i.e. `===`.
       *
       * @private
       * @param {Array} array The array to inspect.
       * @param {*} value The value to search for.
       * @param {number} fromIndex The index to search from.
       * @returns {number} Returns the index of the matched value, else `-1`.
       */
      function strictIndexOf(array, value, fromIndex) {
        var index = fromIndex - 1,
            length = array.length;
    
        while (++index < length) {
          if (array[index] === value) {
            return index;
          }
        }
        return -1;
      }
    
      /**
       * A specialized version of `_.lastIndexOf` which performs strict equality
       * comparisons of values, i.e. `===`.
       *
       * @private
       * @param {Array} array The array to inspect.
       * @param {*} value The value to search for.
       * @param {number} fromIndex The index to search from.
       * @returns {number} Returns the index of the matched value, else `-1`.
       */
      function strictLastIndexOf(array, value, fromIndex) {
        var index = fromIndex + 1;
        while (index--) {
          if (array[index] === value) {
            return index;
          }
        }
        return index;
      }
    
      /**
       * Gets the number of symbols in `string`.
       *
       * @private
       * @param {string} string The string to inspect.
       * @returns {number} Returns the string size.
       */
      function stringSize(string) {
        return hasUnicode(string)
          ? unicodeSize(string)
          : asciiSize(string);
      }
    
      /**
       * Converts `string` to an array.
       *
       * @private
       * @param {string} string The string to convert.
       * @returns {Array} Returns the converted array.
       */
      function stringToArray(string) {
        return hasUnicode(string)
          ? unicodeToArray(string)
          : asciiToArray(string);
      }
    
      /**
       * Used by `_.unescape` to convert HTML entities to characters.
       *
       * @private
       * @param {string} chr The matched character to unescape.
       * @returns {string} Returns the unescaped character.
       */
      var unescapeHtmlChar = basePropertyOf(htmlUnescapes);
    
      /**
       * Gets the size of a Unicode `string`.
       *
       * @private
       * @param {string} string The string inspect.
       * @returns {number} Returns the string size.
       */
      function unicodeSize(string) {
        var result = reUnicode.lastIndex = 0;
        while (reUnicode.test(string)) {
          ++result;
        }
        return result;
      }
    
      /**
       * Converts a Unicode `string` to an array.
       *
       * @private
       * @param {string} string The string to convert.
       * @returns {Array} Returns the converted array.
       */
      function unicodeToArray(string) {
        return string.match(reUnicode) || [];
      }
    
      /**
       * Splits a Unicode `string` into an array of its words.
       *
       * @private
       * @param {string} The string to inspect.
       * @returns {Array} Returns the words of `string`.
       */
      function unicodeWords(string) {
        return string.match(reUnicodeWord) || [];
      }
    
      /*--------------------------------------------------------------------------*/
    
      /**
       * Create a new pristine `lodash` function using the `context` object.
       *
       * @static
       * @memberOf _
       * @since 1.1.0
       * @category Util
       * @param {Object} [context=root] The context object.
       * @returns {Function} Returns a new `lodash` function.
       * @example
       *
       * _.mixin({ 'foo': _.constant('foo') });
       *
       * var lodash = _.runInContext();
       * lodash.mixin({ 'bar': lodash.constant('bar') });
       *
       * _.isFunction(_.foo);
       * // => true
       * _.isFunction(_.bar);
       * // => false
       *
       * lodash.isFunction(lodash.foo);
       * // => false
       * lodash.isFunction(lodash.bar);
       * // => true
       *
       * // Create a suped-up `defer` in Node.js.
       * var defer = _.runInContext({ 'setTimeout': setImmediate }).defer;
       */
      var runInContext = (function runInContext(context) {
        context = context == null ? root : _.defaults(root.Object(), context, _.pick(root, contextProps));
    
        /** Built-in constructor references. */
        var Array = context.Array,
            Date = context.Date,
            Error = context.Error,
            Function = context.Function,
            Math = context.Math,
            Object = context.Object,
            RegExp = context.RegExp,
            String = context.String,
            TypeError = context.TypeError;
    
        /** Used for built-in method references. */
        var arrayProto = Array.prototype,
            funcProto = Function.prototype,
            objectProto = Object.prototype;
    
        /** Used to detect overreaching core-js shims. */
        var coreJsData = context['__core-js_shared__'];
    
        /** Used to resolve the decompiled source of functions. */
        var funcToString = funcProto.toString;
    
        /** Used to check objects for own properties. */
        var hasOwnProperty = objectProto.hasOwnProperty;
    
        /** Used to generate unique IDs. */
        var idCounter = 0;
    
        /** Used to detect methods masquerading as native. */
        var maskSrcKey = (function() {
          var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || '');
          return uid ? ('Symbol(src)_1.' + uid) : '';
        }());
    
        /**
         * Used to resolve the
         * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
         * of values.
         */
        var nativeObjectToString = objectProto.toString;
    
        /** Used to infer the `Object` constructor. */
        var objectCtorString = funcToString.call(Object);
    
        /** Used to restore the original `_` reference in `_.noConflict`. */
        var oldDash = root._;
    
        /** Used to detect if a method is native. */
        var reIsNative = RegExp('^' +
          funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&')
          .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$'
        );
    
        /** Built-in value references. */
        var Buffer = moduleExports ? context.Buffer : undefined,
            Symbol = context.Symbol,
            Uint8Array = context.Uint8Array,
            allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined,
            getPrototype = overArg(Object.getPrototypeOf, Object),
            objectCreate = Object.create,
            propertyIsEnumerable = objectProto.propertyIsEnumerable,
            splice = arrayProto.splice,
            spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined,
            symIterator = Symbol ? Symbol.iterator : undefined,
            symToStringTag = Symbol ? Symbol.toStringTag : undefined;
    
        var defineProperty = (function() {
          try {
            var func = getNative(Object, 'defineProperty');
            func({}, '', {});
            return func;
          } catch (e) {}
        }());
    
        /** Mocked built-ins. */
        var ctxClearTimeout = context.clearTimeout !== root.clearTimeout && context.clearTimeout,
            ctxNow = Date && Date.now !== root.Date.now && Date.now,
            ctxSetTimeout = context.setTimeout !== root.setTimeout && context.setTimeout;
    
        /* Built-in method references for those with the same name as other `lodash` methods. */
        var nativeCeil = Math.ceil,
            nativeFloor = Math.floor,
            nativeGetSymbols = Object.getOwnPropertySymbols,
            nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined,
            nativeIsFinite = context.isFinite,
            nativeJoin = arrayProto.join,
            nativeKeys = overArg(Object.keys, Object),
            nativeMax = Math.max,
            nativeMin = Math.min,
            nativeNow = Date.now,
            nativeParseInt = context.parseInt,
            nativeRandom = Math.random,
            nativeReverse = arrayProto.reverse;
    
        /* Built-in method references that are verified to be native. */
        var DataView = getNative(context, 'DataView'),
            Map = getNative(context, 'Map'),
            Promise = getNative(context, 'Promise'),
            Set = getNative(context, 'Set'),
            WeakMap = getNative(context, 'WeakMap'),
            nativeCreate = getNative(Object, 'create');
    
        /** Used to store function metadata. */
        var metaMap = WeakMap && new WeakMap;
    
        /** Used to lookup unminified function names. */
        var realNames = {};
    
        /** Used to detect maps, sets, and weakmaps. */
        var dataViewCtorString = toSource(DataView),
            mapCtorString = toSource(Map),
            promiseCtorString = toSource(Promise),
            setCtorString = toSource(Set),
            weakMapCtorString = toSource(WeakMap);
    
        /** Used to convert symbols to primitives and strings. */
        var symbolProto = Symbol ? Symbol.prototype : undefined,
            symbolValueOf = symbolProto ? symbolProto.valueOf : undefined,
            symbolToString = symbolProto ? symbolProto.toString : undefined;
    
        /*------------------------------------------------------------------------*/
    
        /**
         * Creates a `lodash` object which wraps `value` to enable implicit method
         * chain sequences. Methods that operate on and return arrays, collections,
         * and functions can be chained together. Methods that retrieve a single value
         * or may return a primitive value will automatically end the chain sequence
         * and return the unwrapped value. Otherwise, the value must be unwrapped
         * with `_#value`.
         *
         * Explicit chain sequences, which must be unwrapped with `_#value`, may be
         * enabled using `_.chain`.
         *
         * The execution of chained methods is lazy, that is, it's deferred until
         * `_#value` is implicitly or explicitly called.
         *
         * Lazy evaluation allows several methods to support shortcut fusion.
         * Shortcut fusion is an optimization to merge iteratee calls; this avoids
         * the creation of intermediate arrays and can greatly reduce the number of
         * iteratee executions. Sections of a chain sequence qualify for shortcut
         * fusion if the section is applied to an array and iteratees accept only
         * one argument. The heuristic for whether a section qualifies for shortcut
         * fusion is subject to change.
         *
         * Chaining is supported in custom builds as long as the `_#value` method is
         * directly or indirectly included in the build.
         *
         * In addition to lodash methods, wrappers have `Array` and `String` methods.
         *
         * The wrapper `Array` methods are:
         * `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift`
         *
         * The wrapper `String` methods are:
         * `replace` and `split`
         *
         * The wrapper methods that support shortcut fusion are:
         * `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`,
         * `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`,
         * `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray`
         *
         * The chainable wrapper methods are:
         * `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`,
         * `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`,
         * `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`,
         * `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`,
         * `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`,
         * `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`,
         * `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`,
         * `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`,
         * `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`,
         * `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`,
         * `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`,
         * `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`,
         * `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`,
         * `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`,
         * `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`,
         * `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`,
         * `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`,
         * `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`,
         * `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`,
         * `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`,
         * `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`,
         * `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`,
         * `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`,
         * `zipObject`, `zipObjectDeep`, and `zipWith`
         *
         * The wrapper methods that are **not** chainable by default are:
         * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`,
         * `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`,
         * `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`,
         * `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`,
         * `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`,
         * `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`,
         * `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`,
         * `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`,
         * `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`,
         * `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`,
         * `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`,
         * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`,
         * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`,
         * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`,
         * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`,
         * `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`,
         * `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`,
         * `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`,
         * `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`,
         * `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`,
         * `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`,
         * `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`,
         * `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`,
         * `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`,
         * `upperFirst`, `value`, and `words`
         *
         * @name _
         * @constructor
         * @category Seq
         * @param {*} value The value to wrap in a `lodash` instance.
         * @returns {Object} Returns the new `lodash` wrapper instance.
         * @example
         *
         * function square(n) {
         *   return n * n;
         * }
         *
         * var wrapped = _([1, 2, 3]);
         *
         * // Returns an unwrapped value.
         * wrapped.reduce(_.add);
         * // => 6
         *
         * // Returns a wrapped value.
         * var squares = wrapped.map(square);
         *
         * _.isArray(squares);
         * // => false
         *
         * _.isArray(squares.value());
         * // => true
         */
        function lodash(value) {
          if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) {
            if (value instanceof LodashWrapper) {
              return value;
            }
            if (hasOwnProperty.call(value, '__wrapped__')) {
              return wrapperClone(value);
            }
          }
          return new LodashWrapper(value);
        }
    
        /**
         * The base implementation of `_.create` without support for assigning
         * properties to the created object.
         *
         * @private
         * @param {Object} proto The object to inherit from.
         * @returns {Object} Returns the new object.
         */
        var baseCreate = (function() {
          function object() {}
          return function(proto) {
            if (!isObject(proto)) {
              return {};
            }
            if (objectCreate) {
              return objectCreate(proto);
            }
            object.prototype = proto;
            var result = new object;
            object.prototype = undefined;
            return result;
          };
        }());
    
        /**
         * The function whose prototype chain sequence wrappers inherit from.
         *
         * @private
         */
        function baseLodash() {
          // No operation performed.
        }
    
        /**
         * The base constructor for creating `lodash` wrapper objects.
         *
         * @private
         * @param {*} value The value to wrap.
         * @param {boolean} [chainAll] Enable explicit method chain sequences.
         */
        function LodashWrapper(value, chainAll) {
          this.__wrapped__ = value;
          this.__actions__ = [];
          this.__chain__ = !!chainAll;
          this.__index__ = 0;
          this.__values__ = undefined;
        }
    
        /**
         * By default, the template delimiters used by lodash are like those in
         * embedded Ruby (ERB) as well as ES2015 template strings. Change the
         * following template settings to use alternative delimiters.
         *
         * @static
         * @memberOf _
         * @type {Object}
         */
        lodash.templateSettings = {
    
          /**
           * Used to detect `data` property values to be HTML-escaped.
           *
           * @memberOf _.templateSettings
           * @type {RegExp}
           */
          'escape': reEscape,
    
          /**
           * Used to detect code to be evaluated.
           *
           * @memberOf _.templateSettings
           * @type {RegExp}
           */
          'evaluate': reEvaluate,
    
          /**
           * Used to detect `data` property values to inject.
           *
           * @memberOf _.templateSettings
           * @type {RegExp}
           */
          'interpolate': reInterpolate,
    
          /**
           * Used to reference the data object in the template text.
           *
           * @memberOf _.templateSettings
           * @type {string}
           */
          'variable': '',
    
          /**
           * Used to import variables into the compiled template.
           *
           * @memberOf _.templateSettings
           * @type {Object}
           */
          'imports': {
    
            /**
             * A reference to the `lodash` function.
             *
             * @memberOf _.templateSettings.imports
             * @type {Function}
             */
            '_': lodash
          }
        };
    
        // Ensure wrappers are instances of `baseLodash`.
        lodash.prototype = baseLodash.prototype;
        lodash.prototype.constructor = lodash;
    
        LodashWrapper.prototype = baseCreate(baseLodash.prototype);
        LodashWrapper.prototype.constructor = LodashWrapper;
    
        /*------------------------------------------------------------------------*/
    
        /**
         * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation.
         *
         * @private
         * @constructor
         * @param {*} value The value to wrap.
         */
        function LazyWrapper(value) {
          this.__wrapped__ = value;
          this.__actions__ = [];
          this.__dir__ = 1;
          this.__filtered__ = false;
          this.__iteratees__ = [];
          this.__takeCount__ = MAX_ARRAY_LENGTH;
          this.__views__ = [];
        }
    
        /**
         * Creates a clone of the lazy wrapper object.
         *
         * @private
         * @name clone
         * @memberOf LazyWrapper
         * @returns {Object} Returns the cloned `LazyWrapper` object.
         */
        function lazyClone() {
          var result = new LazyWrapper(this.__wrapped__);
          result.__actions__ = copyArray(this.__actions__);
          result.__dir__ = this.__dir__;
          result.__filtered__ = this.__filtered__;
          result.__iteratees__ = copyArray(this.__iteratees__);
          result.__takeCount__ = this.__takeCount__;
          result.__views__ = copyArray(this.__views__);
          return result;
        }
    
        /**
         * Reverses the direction of lazy iteration.
         *
         * @private
         * @name reverse
         * @memberOf LazyWrapper
         * @returns {Object} Returns the new reversed `LazyWrapper` object.
         */
        function lazyReverse() {
          if (this.__filtered__) {
            var result = new LazyWrapper(this);
            result.__dir__ = -1;
            result.__filtered__ = true;
          } else {
            result = this.clone();
            result.__dir__ *= -1;
          }
          return result;
        }
    
        /**
         * Extracts the unwrapped value from its lazy wrapper.
         *
         * @private
         * @name value
         * @memberOf LazyWrapper
         * @returns {*} Returns the unwrapped value.
         */
        function lazyValue() {
          var array = this.__wrapped__.value(),
              dir = this.__dir__,
              isArr = isArray(array),
              isRight = dir < 0,
              arrLength = isArr ? array.length : 0,
              view = getView(0, arrLength, this.__views__),
              start = view.start,
              end = view.end,
              length = end - start,
              index = isRight ? end : (start - 1),
              iteratees = this.__iteratees__,
              iterLength = iteratees.length,
              resIndex = 0,
              takeCount = nativeMin(length, this.__takeCount__);
    
          if (!isArr || (!isRight && arrLength == length && takeCount == length)) {
            return baseWrapperValue(array, this.__actions__);
          }
          var result = [];
    
          outer:
          while (length-- && resIndex < takeCount) {
            index += dir;
    
            var iterIndex = -1,
                value = array[index];
    
            while (++iterIndex < iterLength) {
              var data = iteratees[iterIndex],
                  iteratee = data.iteratee,
                  type = data.type,
                  computed = iteratee(value);
    
              if (type == LAZY_MAP_FLAG) {
                value = computed;
              } else if (!computed) {
                if (type == LAZY_FILTER_FLAG) {
                  continue outer;
                } else {
                  break outer;
                }
              }
            }
            result[resIndex++] = value;
          }
          return result;
        }
    
        // Ensure `LazyWrapper` is an instance of `baseLodash`.
        LazyWrapper.prototype = baseCreate(baseLodash.prototype);
        LazyWrapper.prototype.constructor = LazyWrapper;
    
        /*------------------------------------------------------------------------*/
    
        /**
         * Creates a hash object.
         *
         * @private
         * @constructor
         * @param {Array} [entries] The key-value pairs to cache.
         */
        function Hash(entries) {
          var index = -1,
              length = entries == null ? 0 : entries.length;
    
          this.clear();
          while (++index < length) {
            var entry = entries[index];
            this.set(entry[0], entry[1]);
          }
        }
    
        /**
         * Removes all key-value entries from the hash.
         *
         * @private
         * @name clear
         * @memberOf Hash
         */
        function hashClear() {
          this.__data__ = nativeCreate ? nativeCreate(null) : {};
          this.size = 0;
        }
    
        /**
         * Removes `key` and its value from the hash.
         *
         * @private
         * @name delete
         * @memberOf Hash
         * @param {Object} hash The hash to modify.
         * @param {string} key The key of the value to remove.
         * @returns {boolean} Returns `true` if the entry was removed, else `false`.
         */
        function hashDelete(key) {
          var result = this.has(key) && delete this.__data__[key];
          this.size -= result ? 1 : 0;
          return result;
        }
    
        /**
         * Gets the hash value for `key`.
         *
         * @private
         * @name get
         * @memberOf Hash
         * @param {string} key The key of the value to get.
         * @returns {*} Returns the entry value.
         */
        function hashGet(key) {
          var data = this.__data__;
          if (nativeCreate) {
            var result = data[key];
            return result === HASH_UNDEFINED ? undefined : result;
          }
          return hasOwnProperty.call(data, key) ? data[key] : undefined;
        }
    
        /**
         * Checks if a hash value for `key` exists.
         *
         * @private
         * @name has
         * @memberOf Hash
         * @param {string} key The key of the entry to check.
         * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
         */
        function hashHas(key) {
          var data = this.__data__;
          return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key);
        }
    
        /**
         * Sets the hash `key` to `value`.
         *
         * @private
         * @name set
         * @memberOf Hash
         * @param {string} key The key of the value to set.
         * @param {*} value The value to set.
         * @returns {Object} Returns the hash instance.
         */
        function hashSet(key, value) {
          var data = this.__data__;
          this.size += this.has(key) ? 0 : 1;
          data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value;
          return this;
        }
    
        // Add methods to `Hash`.
        Hash.prototype.clear = hashClear;
        Hash.prototype['delete'] = hashDelete;
        Hash.prototype.get = hashGet;
        Hash.prototype.has = hashHas;
        Hash.prototype.set = hashSet;
    
        /*------------------------------------------------------------------------*/
    
        /**
         * Creates an list cache object.
         *
         * @private
         * @constructor
         * @param {Array} [entries] The key-value pairs to cache.
         */
        function ListCache(entries) {
          var index = -1,
              length = entries == null ? 0 : entries.length;
    
          this.clear();
          while (++index < length) {
            var entry = entries[index];
            this.set(entry[0], entry[1]);
          }
        }
    
        /**
         * Removes all key-value entries from the list cache.
         *
         * @private
         * @name clear
         * @memberOf ListCache
         */
        function listCacheClear() {
          this.__data__ = [];
          this.size = 0;
        }
    
        /**
         * Removes `key` and its value from the list cache.
         *
         * @private
         * @name delete
         * @memberOf ListCache
         * @param {string} key The key of the value to remove.
         * @returns {boolean} Returns `true` if the entry was removed, else `false`.
         */
        function listCacheDelete(key) {
          var data = this.__data__,
              index = assocIndexOf(data, key);
    
          if (index < 0) {
            return false;
          }
          var lastIndex = data.length - 1;
          if (index == lastIndex) {
            data.pop();
          } else {
            splice.call(data, index, 1);
          }
          --this.size;
          return true;
        }
    
        /**
         * Gets the list cache value for `key`.
         *
         * @private
         * @name get
         * @memberOf ListCache
         * @param {string} key The key of the value to get.
         * @returns {*} Returns the entry value.
         */
        function listCacheGet(key) {
          var data = this.__data__,
              index = assocIndexOf(data, key);
    
          return index < 0 ? undefined : data[index][1];
        }
    
        /**
         * Checks if a list cache value for `key` exists.
         *
         * @private
         * @name has
         * @memberOf ListCache
         * @param {string} key The key of the entry to check.
         * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
         */
        function listCacheHas(key) {
          return assocIndexOf(this.__data__, key) > -1;
        }
    
        /**
         * Sets the list cache `key` to `value`.
         *
         * @private
         * @name set
         * @memberOf ListCache
         * @param {string} key The key of the value to set.
         * @param {*} value The value to set.
         * @returns {Object} Returns the list cache instance.
         */
        function listCacheSet(key, value) {
          var data = this.__data__,
              index = assocIndexOf(data, key);
    
          if (index < 0) {
            ++this.size;
            data.push([key, value]);
          } else {
            data[index][1] = value;
          }
          return this;
        }
    
        // Add methods to `ListCache`.
        ListCache.prototype.clear = listCacheClear;
        ListCache.prototype['delete'] = listCacheDelete;
        ListCache.prototype.get = listCacheGet;
        ListCache.prototype.has = listCacheHas;
        ListCache.prototype.set = listCacheSet;
    
        /*------------------------------------------------------------------------*/
    
        /**
         * Creates a map cache object to store key-value pairs.
         *
         * @private
         * @constructor
         * @param {Array} [entries] The key-value pairs to cache.
         */
        function MapCache(entries) {
          var index = -1,
              length = entries == null ? 0 : entries.length;
    
          this.clear();
          while (++index < length) {
            var entry = entries[index];
            this.set(entry[0], entry[1]);
          }
        }
    
        /**
         * Removes all key-value entries from the map.
         *
         * @private
         * @name clear
         * @memberOf MapCache
         */
        function mapCacheClear() {
          this.size = 0;
          this.__data__ = {
            'hash': new Hash,
            'map': new (Map || ListCache),
            'string': new Hash
          };
        }
    
        /**
         * Removes `key` and its value from the map.
         *
         * @private
         * @name delete
         * @memberOf MapCache
         * @param {string} key The key of the value to remove.
         * @returns {boolean} Returns `true` if the entry was removed, else `false`.
         */
        function mapCacheDelete(key) {
          var result = getMapData(this, key)['delete'](key);
          this.size -= result ? 1 : 0;
          return result;
        }
    
        /**
         * Gets the map value for `key`.
         *
         * @private
         * @name get
         * @memberOf MapCache
         * @param {string} key The key of the value to get.
         * @returns {*} Returns the entry value.
         */
        function mapCacheGet(key) {
          return getMapData(this, key).get(key);
        }
    
        /**
         * Checks if a map value for `key` exists.
         *
         * @private
         * @name has
         * @memberOf MapCache
         * @param {string} key The key of the entry to check.
         * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
         */
        function mapCacheHas(key) {
          return getMapData(this, key).has(key);
        }
    
        /**
         * Sets the map `key` to `value`.
         *
         * @private
         * @name set
         * @memberOf MapCache
         * @param {string} key The key of the value to set.
         * @param {*} value The value to set.
         * @returns {Object} Returns the map cache instance.
         */
        function mapCacheSet(key, value) {
          var data = getMapData(this, key),
              size = data.size;
    
          data.set(key, value);
          this.size += data.size == size ? 0 : 1;
          return this;
        }
    
        // Add methods to `MapCache`.
        MapCache.prototype.clear = mapCacheClear;
        MapCache.prototype['delete'] = mapCacheDelete;
        MapCache.prototype.get = mapCacheGet;
        MapCache.prototype.has = mapCacheHas;
        MapCache.prototype.set = mapCacheSet;
    
        /*------------------------------------------------------------------------*/
    
        /**
         *
         * Creates an array cache object to store unique values.
         *
         * @private
         * @constructor
         * @param {Array} [values] The values to cache.
         */
        function SetCache(values) {
          var index = -1,
              length = values == null ? 0 : values.length;
    
          this.__data__ = new MapCache;
          while (++index < length) {
            this.add(values[index]);
          }
        }
    
        /**
         * Adds `value` to the array cache.
         *
         * @private
         * @name add
         * @memberOf SetCache
         * @alias push
         * @param {*} value The value to cache.
         * @returns {Object} Returns the cache instance.
         */
        function setCacheAdd(value) {
          this.__data__.set(value, HASH_UNDEFINED);
          return this;
        }
    
        /**
         * Checks if `value` is in the array cache.
         *
         * @private
         * @name has
         * @memberOf SetCache
         * @param {*} value The value to search for.
         * @returns {number} Returns `true` if `value` is found, else `false`.
         */
        function setCacheHas(value) {
          return this.__data__.has(value);
        }
    
        // Add methods to `SetCache`.
        SetCache.prototype.add = SetCache.prototype.push = setCacheAdd;
        SetCache.prototype.has = setCacheHas;
    
        /*------------------------------------------------------------------------*/
    
        /**
         * Creates a stack cache object to store key-value pairs.
         *
         * @private
         * @constructor
         * @param {Array} [entries] The key-value pairs to cache.
         */
        function Stack(entries) {
          var data = this.__data__ = new ListCache(entries);
          this.size = data.size;
        }
    
        /**
         * Removes all key-value entries from the stack.
         *
         * @private
         * @name clear
         * @memberOf Stack
         */
        function stackClear() {
          this.__data__ = new ListCache;
          this.size = 0;
        }
    
        /**
         * Removes `key` and its value from the stack.
         *
         * @private
         * @name delete
         * @memberOf Stack
         * @param {string} key The key of the value to remove.
         * @returns {boolean} Returns `true` if the entry was removed, else `false`.
         */
        function stackDelete(key) {
          var data = this.__data__,
              result = data['delete'](key);
    
          this.size = data.size;
          return result;
        }
    
        /**
         * Gets the stack value for `key`.
         *
         * @private
         * @name get
         * @memberOf Stack
         * @param {string} key The key of the value to get.
         * @returns {*} Returns the entry value.
         */
        function stackGet(key) {
          return this.__data__.get(key);
        }
    
        /**
         * Checks if a stack value for `key` exists.
         *
         * @private
         * @name has
         * @memberOf Stack
         * @param {string} key The key of the entry to check.
         * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
         */
        function stackHas(key) {
          return this.__data__.has(key);
        }
    
        /**
         * Sets the stack `key` to `value`.
         *
         * @private
         * @name set
         * @memberOf Stack
         * @param {string} key The key of the value to set.
         * @param {*} value The value to set.
         * @returns {Object} Returns the stack cache instance.
         */
        function stackSet(key, value) {
          var data = this.__data__;
          if (data instanceof ListCache) {
            var pairs = data.__data__;
            if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) {
              pairs.push([key, value]);
              this.size = ++data.size;
              return this;
            }
            data = this.__data__ = new MapCache(pairs);
          }
          data.set(key, value);
          this.size = data.size;
          return this;
        }
    
        // Add methods to `Stack`.
        Stack.prototype.clear = stackClear;
        Stack.prototype['delete'] = stackDelete;
        Stack.prototype.get = stackGet;
        Stack.prototype.has = stackHas;
        Stack.prototype.set = stackSet;
    
        /*------------------------------------------------------------------------*/
    
        /**
         * Creates an array of the enumerable property names of the array-like `value`.
         *
         * @private
         * @param {*} value The value to query.
         * @param {boolean} inherited Specify returning inherited property names.
         * @returns {Array} Returns the array of property names.
         */
        function arrayLikeKeys(value, inherited) {
          var isArr = isArray(value),
              isArg = !isArr && isArguments(value),
              isBuff = !isArr && !isArg && isBuffer(value),
              isType = !isArr && !isArg && !isBuff && isTypedArray(value),
              skipIndexes = isArr || isArg || isBuff || isType,
              result = skipIndexes ? baseTimes(value.length, String) : [],
              length = result.length;
    
          for (var key in value) {
            if ((inherited || hasOwnProperty.call(value, key)) &&
                !(skipIndexes && (
                   // Safari 9 has enumerable `arguments.length` in strict mode.
                   key == 'length' ||
                   // Node.js 0.10 has enumerable non-index properties on buffers.
                   (isBuff && (key == 'offset' || key == 'parent')) ||
                   // PhantomJS 2 has enumerable non-index properties on typed arrays.
                   (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) ||
                   // Skip index properties.
                   isIndex(key, length)
                ))) {
              result.push(key);
            }
          }
          return result;
        }
    
        /**
         * A specialized version of `_.sample` for arrays.
         *
         * @private
         * @param {Array} array The array to sample.
         * @returns {*} Returns the random element.
         */
        function arraySample(array) {
          var length = array.length;
          return length ? array[baseRandom(0, length - 1)] : undefined;
        }
    
        /**
         * A specialized version of `_.sampleSize` for arrays.
         *
         * @private
         * @param {Array} array The array to sample.
         * @param {number} n The number of elements to sample.
         * @returns {Array} Returns the random elements.
         */
        function arraySampleSize(array, n) {
          return shuffleSelf(copyArray(array), baseClamp(n, 0, array.length));
        }
    
        /**
         * A specialized version of `_.shuffle` for arrays.
         *
         * @private
         * @param {Array} array The array to shuffle.
         * @returns {Array} Returns the new shuffled array.
         */
        function arrayShuffle(array) {
          return shuffleSelf(copyArray(array));
        }
    
        /**
         * This function is like `assignValue` except that it doesn't assign
         * `undefined` values.
         *
         * @private
         * @param {Object} object The object to modify.
         * @param {string} key The key of the property to assign.
         * @param {*} value The value to assign.
         */
        function assignMergeValue(object, key, value) {
          if ((value !== undefined && !eq(object[key], value)) ||
              (value === undefined && !(key in object))) {
            baseAssignValue(object, key, value);
          }
        }
    
        /**
         * Assigns `value` to `key` of `object` if the existing value is not equivalent
         * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
         * for equality comparisons.
         *
         * @private
         * @param {Object} object The object to modify.
         * @param {string} key The key of the property to assign.
         * @param {*} value The value to assign.
         */
        function assignValue(object, key, value) {
          var objValue = object[key];
          if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) ||
              (value === undefined && !(key in object))) {
            baseAssignValue(object, key, value);
          }
        }
    
        /**
         * Gets the index at which the `key` is found in `array` of key-value pairs.
         *
         * @private
         * @param {Array} array The array to inspect.
         * @param {*} key The key to search for.
         * @returns {number} Returns the index of the matched value, else `-1`.
         */
        function assocIndexOf(array, key) {
          var length = array.length;
          while (length--) {
            if (eq(array[length][0], key)) {
              return length;
            }
          }
          return -1;
        }
    
        /**
         * Aggregates elements of `collection` on `accumulator` with keys transformed
         * by `iteratee` and values set by `setter`.
         *
         * @private
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} setter The function to set `accumulator` values.
         * @param {Function} iteratee The iteratee to transform keys.
         * @param {Object} accumulator The initial aggregated object.
         * @returns {Function} Returns `accumulator`.
         */
        function baseAggregator(collection, setter, iteratee, accumulator) {
          baseEach(collection, function(value, key, collection) {
            setter(accumulator, value, iteratee(value), collection);
          });
          return accumulator;
        }
    
        /**
         * The base implementation of `_.assign` without support for multiple sources
         * or `customizer` functions.
         *
         * @private
         * @param {Object} object The destination object.
         * @param {Object} source The source object.
         * @returns {Object} Returns `object`.
         */
        function baseAssign(object, source) {
          return object && copyObject(source, keys(source), object);
        }
    
        /**
         * The base implementation of `_.assignIn` without support for multiple sources
         * or `customizer` functions.
         *
         * @private
         * @param {Object} object The destination object.
         * @param {Object} source The source object.
         * @returns {Object} Returns `object`.
         */
        function baseAssignIn(object, source) {
          return object && copyObject(source, keysIn(source), object);
        }
    
        /**
         * The base implementation of `assignValue` and `assignMergeValue` without
         * value checks.
         *
         * @private
         * @param {Object} object The object to modify.
         * @param {string} key The key of the property to assign.
         * @param {*} value The value to assign.
         */
        function baseAssignValue(object, key, value) {
          if (key == '__proto__' && defineProperty) {
            defineProperty(object, key, {
              'configurable': true,
              'enumerable': true,
              'value': value,
              'writable': true
            });
          } else {
            object[key] = value;
          }
        }
    
        /**
         * The base implementation of `_.at` without support for individual paths.
         *
         * @private
         * @param {Object} object The object to iterate over.
         * @param {string[]} paths The property paths to pick.
         * @returns {Array} Returns the picked elements.
         */
        function baseAt(object, paths) {
          var index = -1,
              length = paths.length,
              result = Array(length),
              skip = object == null;
    
          while (++index < length) {
            result[index] = skip ? undefined : get(object, paths[index]);
          }
          return result;
        }
    
        /**
         * The base implementation of `_.clamp` which doesn't coerce arguments.
         *
         * @private
         * @param {number} number The number to clamp.
         * @param {number} [lower] The lower bound.
         * @param {number} upper The upper bound.
         * @returns {number} Returns the clamped number.
         */
        function baseClamp(number, lower, upper) {
          if (number === number) {
            if (upper !== undefined) {
              number = number <= upper ? number : upper;
            }
            if (lower !== undefined) {
              number = number >= lower ? number : lower;
            }
          }
          return number;
        }
    
        /**
         * The base implementation of `_.clone` and `_.cloneDeep` which tracks
         * traversed objects.
         *
         * @private
         * @param {*} value The value to clone.
         * @param {boolean} bitmask The bitmask flags.
         *  1 - Deep clone
         *  2 - Flatten inherited properties
         *  4 - Clone symbols
         * @param {Function} [customizer] The function to customize cloning.
         * @param {string} [key] The key of `value`.
         * @param {Object} [object] The parent object of `value`.
         * @param {Object} [stack] Tracks traversed objects and their clone counterparts.
         * @returns {*} Returns the cloned value.
         */
        function baseClone(value, bitmask, customizer, key, object, stack) {
          var result,
              isDeep = bitmask & CLONE_DEEP_FLAG,
              isFlat = bitmask & CLONE_FLAT_FLAG,
              isFull = bitmask & CLONE_SYMBOLS_FLAG;
    
          if (customizer) {
            result = object ? customizer(value, key, object, stack) : customizer(value);
          }
          if (result !== undefined) {
            return result;
          }
          if (!isObject(value)) {
            return value;
          }
          var isArr = isArray(value);
          if (isArr) {
            result = initCloneArray(value);
            if (!isDeep) {
              return copyArray(value, result);
            }
          } else {
            var tag = getTag(value),
                isFunc = tag == funcTag || tag == genTag;
    
            if (isBuffer(value)) {
              return cloneBuffer(value, isDeep);
            }
            if (tag == objectTag || tag == argsTag || (isFunc && !object)) {
              result = (isFlat || isFunc) ? {} : initCloneObject(value);
              if (!isDeep) {
                return isFlat
                  ? copySymbolsIn(value, baseAssignIn(result, value))
                  : copySymbols(value, baseAssign(result, value));
              }
            } else {
              if (!cloneableTags[tag]) {
                return object ? value : {};
              }
              result = initCloneByTag(value, tag, isDeep);
            }
          }
          // Check for circular references and return its corresponding clone.
          stack || (stack = new Stack);
          var stacked = stack.get(value);
          if (stacked) {
            return stacked;
          }
          stack.set(value, result);
    
          if (isSet(value)) {
            value.forEach(function(subValue) {
              result.add(baseClone(subValue, bitmask, customizer, subValue, value, stack));
            });
          } else if (isMap(value)) {
            value.forEach(function(subValue, key) {
              result.set(key, baseClone(subValue, bitmask, customizer, key, value, stack));
            });
          }
    
          var keysFunc = isFull
            ? (isFlat ? getAllKeysIn : getAllKeys)
            : (isFlat ? keysIn : keys);
    
          var props = isArr ? undefined : keysFunc(value);
          arrayEach(props || value, function(subValue, key) {
            if (props) {
              key = subValue;
              subValue = value[key];
            }
            // Recursively populate clone (susceptible to call stack limits).
            assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack));
          });
          return result;
        }
    
        /**
         * The base implementation of `_.conforms` which doesn't clone `source`.
         *
         * @private
         * @param {Object} source The object of property predicates to conform to.
         * @returns {Function} Returns the new spec function.
         */
        function baseConforms(source) {
          var props = keys(source);
          return function(object) {
            return baseConformsTo(object, source, props);
          };
        }
    
        /**
         * The base implementation of `_.conformsTo` which accepts `props` to check.
         *
         * @private
         * @param {Object} object The object to inspect.
         * @param {Object} source The object of property predicates to conform to.
         * @returns {boolean} Returns `true` if `object` conforms, else `false`.
         */
        function baseConformsTo(object, source, props) {
          var length = props.length;
          if (object == null) {
            return !length;
          }
          object = Object(object);
          while (length--) {
            var key = props[length],
                predicate = source[key],
                value = object[key];
    
            if ((value === undefined && !(key in object)) || !predicate(value)) {
              return false;
            }
          }
          return true;
        }
    
        /**
         * The base implementation of `_.delay` and `_.defer` which accepts `args`
         * to provide to `func`.
         *
         * @private
         * @param {Function} func The function to delay.
         * @param {number} wait The number of milliseconds to delay invocation.
         * @param {Array} args The arguments to provide to `func`.
         * @returns {number|Object} Returns the timer id or timeout object.
         */
        function baseDelay(func, wait, args) {
          if (typeof func != 'function') {
            throw new TypeError(FUNC_ERROR_TEXT);
          }
          return setTimeout(function() { func.apply(undefined, args); }, wait);
        }
    
        /**
         * The base implementation of methods like `_.difference` without support
         * for excluding multiple arrays or iteratee shorthands.
         *
         * @private
         * @param {Array} array The array to inspect.
         * @param {Array} values The values to exclude.
         * @param {Function} [iteratee] The iteratee invoked per element.
         * @param {Function} [comparator] The comparator invoked per element.
         * @returns {Array} Returns the new array of filtered values.
         */
        function baseDifference(array, values, iteratee, comparator) {
          var index = -1,
              includes = arrayIncludes,
              isCommon = true,
              length = array.length,
              result = [],
              valuesLength = values.length;
    
          if (!length) {
            return result;
          }
          if (iteratee) {
            values = arrayMap(values, baseUnary(iteratee));
          }
          if (comparator) {
            includes = arrayIncludesWith;
            isCommon = false;
          }
          else if (values.length >= LARGE_ARRAY_SIZE) {
            includes = cacheHas;
            isCommon = false;
            values = new SetCache(values);
          }
          outer:
          while (++index < length) {
            var value = array[index],
                computed = iteratee == null ? value : iteratee(value);
    
            value = (comparator || value !== 0) ? value : 0;
            if (isCommon && computed === computed) {
              var valuesIndex = valuesLength;
              while (valuesIndex--) {
                if (values[valuesIndex] === computed) {
                  continue outer;
                }
              }
              result.push(value);
            }
            else if (!includes(values, computed, comparator)) {
              result.push(value);
            }
          }
          return result;
        }
    
        /**
         * The base implementation of `_.forEach` without support for iteratee shorthands.
         *
         * @private
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} iteratee The function invoked per iteration.
         * @returns {Array|Object} Returns `collection`.
         */
        var baseEach = createBaseEach(baseForOwn);
    
        /**
         * The base implementation of `_.forEachRight` without support for iteratee shorthands.
         *
         * @private
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} iteratee The function invoked per iteration.
         * @returns {Array|Object} Returns `collection`.
         */
        var baseEachRight = createBaseEach(baseForOwnRight, true);
    
        /**
         * The base implementation of `_.every` without support for iteratee shorthands.
         *
         * @private
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} predicate The function invoked per iteration.
         * @returns {boolean} Returns `true` if all elements pass the predicate check,
         *  else `false`
         */
        function baseEvery(collection, predicate) {
          var result = true;
          baseEach(collection, function(value, index, collection) {
            result = !!predicate(value, index, collection);
            return result;
          });
          return result;
        }
    
        /**
         * The base implementation of methods like `_.max` and `_.min` which accepts a
         * `comparator` to determine the extremum value.
         *
         * @private
         * @param {Array} array The array to iterate over.
         * @param {Function} iteratee The iteratee invoked per iteration.
         * @param {Function} comparator The comparator used to compare values.
         * @returns {*} Returns the extremum value.
         */
        function baseExtremum(array, iteratee, comparator) {
          var index = -1,
              length = array.length;
    
          while (++index < length) {
            var value = array[index],
                current = iteratee(value);
    
            if (current != null && (computed === undefined
                  ? (current === current && !isSymbol(current))
                  : comparator(current, computed)
                )) {
              var computed = current,
                  result = value;
            }
          }
          return result;
        }
    
        /**
         * The base implementation of `_.fill` without an iteratee call guard.
         *
         * @private
         * @param {Array} array The array to fill.
         * @param {*} value The value to fill `array` with.
         * @param {number} [start=0] The start position.
         * @param {number} [end=array.length] The end position.
         * @returns {Array} Returns `array`.
         */
        function baseFill(array, value, start, end) {
          var length = array.length;
    
          start = toInteger(start);
          if (start < 0) {
            start = -start > length ? 0 : (length + start);
          }
          end = (end === undefined || end > length) ? length : toInteger(end);
          if (end < 0) {
            end += length;
          }
          end = start > end ? 0 : toLength(end);
          while (start < end) {
            array[start++] = value;
          }
          return array;
        }
    
        /**
         * The base implementation of `_.filter` without support for iteratee shorthands.
         *
         * @private
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} predicate The function invoked per iteration.
         * @returns {Array} Returns the new filtered array.
         */
        function baseFilter(collection, predicate) {
          var result = [];
          baseEach(collection, function(value, index, collection) {
            if (predicate(value, index, collection)) {
              result.push(value);
            }
          });
          return result;
        }
    
        /**
         * The base implementation of `_.flatten` with support for restricting flattening.
         *
         * @private
         * @param {Array} array The array to flatten.
         * @param {number} depth The maximum recursion depth.
         * @param {boolean} [predicate=isFlattenable] The function invoked per iteration.
         * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks.
         * @param {Array} [result=[]] The initial result value.
         * @returns {Array} Returns the new flattened array.
         */
        function baseFlatten(array, depth, predicate, isStrict, result) {
          var index = -1,
              length = array.length;
    
          predicate || (predicate = isFlattenable);
          result || (result = []);
    
          while (++index < length) {
            var value = array[index];
            if (depth > 0 && predicate(value)) {
              if (depth > 1) {
                // Recursively flatten arrays (susceptible to call stack limits).
                baseFlatten(value, depth - 1, predicate, isStrict, result);
              } else {
                arrayPush(result, value);
              }
            } else if (!isStrict) {
              result[result.length] = value;
            }
          }
          return result;
        }
    
        /**
         * The base implementation of `baseForOwn` which iterates over `object`
         * properties returned by `keysFunc` and invokes `iteratee` for each property.
         * Iteratee functions may exit iteration early by explicitly returning `false`.
         *
         * @private
         * @param {Object} object The object to iterate over.
         * @param {Function} iteratee The function invoked per iteration.
         * @param {Function} keysFunc The function to get the keys of `object`.
         * @returns {Object} Returns `object`.
         */
        var baseFor = createBaseFor();
    
        /**
         * This function is like `baseFor` except that it iterates over properties
         * in the opposite order.
         *
         * @private
         * @param {Object} object The object to iterate over.
         * @param {Function} iteratee The function invoked per iteration.
         * @param {Function} keysFunc The function to get the keys of `object`.
         * @returns {Object} Returns `object`.
         */
        var baseForRight = createBaseFor(true);
    
        /**
         * The base implementation of `_.forOwn` without support for iteratee shorthands.
         *
         * @private
         * @param {Object} object The object to iterate over.
         * @param {Function} iteratee The function invoked per iteration.
         * @returns {Object} Returns `object`.
         */
        function baseForOwn(object, iteratee) {
          return object && baseFor(object, iteratee, keys);
        }
    
        /**
         * The base implementation of `_.forOwnRight` without support for iteratee shorthands.
         *
         * @private
         * @param {Object} object The object to iterate over.
         * @param {Function} iteratee The function invoked per iteration.
         * @returns {Object} Returns `object`.
         */
        function baseForOwnRight(object, iteratee) {
          return object && baseForRight(object, iteratee, keys);
        }
    
        /**
         * The base implementation of `_.functions` which creates an array of
         * `object` function property names filtered from `props`.
         *
         * @private
         * @param {Object} object The object to inspect.
         * @param {Array} props The property names to filter.
         * @returns {Array} Returns the function names.
         */
        function baseFunctions(object, props) {
          return arrayFilter(props, function(key) {
            return isFunction(object[key]);
          });
        }
    
        /**
         * The base implementation of `_.get` without support for default values.
         *
         * @private
         * @param {Object} object The object to query.
         * @param {Array|string} path The path of the property to get.
         * @returns {*} Returns the resolved value.
         */
        function baseGet(object, path) {
          path = castPath(path, object);
    
          var index = 0,
              length = path.length;
    
          while (object != null && index < length) {
            object = object[toKey(path[index++])];
          }
          return (index && index == length) ? object : undefined;
        }
    
        /**
         * The base implementation of `getAllKeys` and `getAllKeysIn` which uses
         * `keysFunc` and `symbolsFunc` to get the enumerable property names and
         * symbols of `object`.
         *
         * @private
         * @param {Object} object The object to query.
         * @param {Function} keysFunc The function to get the keys of `object`.
         * @param {Function} symbolsFunc The function to get the symbols of `object`.
         * @returns {Array} Returns the array of property names and symbols.
         */
        function baseGetAllKeys(object, keysFunc, symbolsFunc) {
          var result = keysFunc(object);
          return isArray(object) ? result : arrayPush(result, symbolsFunc(object));
        }
    
        /**
         * The base implementation of `getTag` without fallbacks for buggy environments.
         *
         * @private
         * @param {*} value The value to query.
         * @returns {string} Returns the `toStringTag`.
         */
        function baseGetTag(value) {
          if (value == null) {
            return value === undefined ? undefinedTag : nullTag;
          }
          return (symToStringTag && symToStringTag in Object(value))
            ? getRawTag(value)
            : objectToString(value);
        }
    
        /**
         * The base implementation of `_.gt` which doesn't coerce arguments.
         *
         * @private
         * @param {*} value The value to compare.
         * @param {*} other The other value to compare.
         * @returns {boolean} Returns `true` if `value` is greater than `other`,
         *  else `false`.
         */
        function baseGt(value, other) {
          return value > other;
        }
    
        /**
         * The base implementation of `_.has` without support for deep paths.
         *
         * @private
         * @param {Object} [object] The object to query.
         * @param {Array|string} key The key to check.
         * @returns {boolean} Returns `true` if `key` exists, else `false`.
         */
        function baseHas(object, key) {
          return object != null && hasOwnProperty.call(object, key);
        }
    
        /**
         * The base implementation of `_.hasIn` without support for deep paths.
         *
         * @private
         * @param {Object} [object] The object to query.
         * @param {Array|string} key The key to check.
         * @returns {boolean} Returns `true` if `key` exists, else `false`.
         */
        function baseHasIn(object, key) {
          return object != null && key in Object(object);
        }
    
        /**
         * The base implementation of `_.inRange` which doesn't coerce arguments.
         *
         * @private
         * @param {number} number The number to check.
         * @param {number} start The start of the range.
         * @param {number} end The end of the range.
         * @returns {boolean} Returns `true` if `number` is in the range, else `false`.
         */
        function baseInRange(number, start, end) {
          return number >= nativeMin(start, end) && number < nativeMax(start, end);
        }
    
        /**
         * The base implementation of methods like `_.intersection`, without support
         * for iteratee shorthands, that accepts an array of arrays to inspect.
         *
         * @private
         * @param {Array} arrays The arrays to inspect.
         * @param {Function} [iteratee] The iteratee invoked per element.
         * @param {Function} [comparator] The comparator invoked per element.
         * @returns {Array} Returns the new array of shared values.
         */
        function baseIntersection(arrays, iteratee, comparator) {
          var includes = comparator ? arrayIncludesWith : arrayIncludes,
              length = arrays[0].length,
              othLength = arrays.length,
              othIndex = othLength,
              caches = Array(othLength),
              maxLength = Infinity,
              result = [];
    
          while (othIndex--) {
            var array = arrays[othIndex];
            if (othIndex && iteratee) {
              array = arrayMap(array, baseUnary(iteratee));
            }
            maxLength = nativeMin(array.length, maxLength);
            caches[othIndex] = !comparator && (iteratee || (length >= 120 && array.length >= 120))
              ? new SetCache(othIndex && array)
              : undefined;
          }
          array = arrays[0];
    
          var index = -1,
              seen = caches[0];
    
          outer:
          while (++index < length && result.length < maxLength) {
            var value = array[index],
                computed = iteratee ? iteratee(value) : value;
    
            value = (comparator || value !== 0) ? value : 0;
            if (!(seen
                  ? cacheHas(seen, computed)
                  : includes(result, computed, comparator)
                )) {
              othIndex = othLength;
              while (--othIndex) {
                var cache = caches[othIndex];
                if (!(cache
                      ? cacheHas(cache, computed)
                      : includes(arrays[othIndex], computed, comparator))
                    ) {
                  continue outer;
                }
              }
              if (seen) {
                seen.push(computed);
              }
              result.push(value);
            }
          }
          return result;
        }
    
        /**
         * The base implementation of `_.invert` and `_.invertBy` which inverts
         * `object` with values transformed by `iteratee` and set by `setter`.
         *
         * @private
         * @param {Object} object The object to iterate over.
         * @param {Function} setter The function to set `accumulator` values.
         * @param {Function} iteratee The iteratee to transform values.
         * @param {Object} accumulator The initial inverted object.
         * @returns {Function} Returns `accumulator`.
         */
        function baseInverter(object, setter, iteratee, accumulator) {
          baseForOwn(object, function(value, key, object) {
            setter(accumulator, iteratee(value), key, object);
          });
          return accumulator;
        }
    
        /**
         * The base implementation of `_.invoke` without support for individual
         * method arguments.
         *
         * @private
         * @param {Object} object The object to query.
         * @param {Array|string} path The path of the method to invoke.
         * @param {Array} args The arguments to invoke the method with.
         * @returns {*} Returns the result of the invoked method.
         */
        function baseInvoke(object, path, args) {
          path = castPath(path, object);
          object = parent(object, path);
          var func = object == null ? object : object[toKey(last(path))];
          return func == null ? undefined : apply(func, object, args);
        }
    
        /**
         * The base implementation of `_.isArguments`.
         *
         * @private
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is an `arguments` object,
         */
        function baseIsArguments(value) {
          return isObjectLike(value) && baseGetTag(value) == argsTag;
        }
    
        /**
         * The base implementation of `_.isArrayBuffer` without Node.js optimizations.
         *
         * @private
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.
         */
        function baseIsArrayBuffer(value) {
          return isObjectLike(value) && baseGetTag(value) == arrayBufferTag;
        }
    
        /**
         * The base implementation of `_.isDate` without Node.js optimizations.
         *
         * @private
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a date object, else `false`.
         */
        function baseIsDate(value) {
          return isObjectLike(value) && baseGetTag(value) == dateTag;
        }
    
        /**
         * The base implementation of `_.isEqual` which supports partial comparisons
         * and tracks traversed objects.
         *
         * @private
         * @param {*} value The value to compare.
         * @param {*} other The other value to compare.
         * @param {boolean} bitmask The bitmask flags.
         *  1 - Unordered comparison
         *  2 - Partial comparison
         * @param {Function} [customizer] The function to customize comparisons.
         * @param {Object} [stack] Tracks traversed `value` and `other` objects.
         * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
         */
        function baseIsEqual(value, other, bitmask, customizer, stack) {
          if (value === other) {
            return true;
          }
          if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) {
            return value !== value && other !== other;
          }
          return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack);
        }
    
        /**
         * A specialized version of `baseIsEqual` for arrays and objects which performs
         * deep comparisons and tracks traversed objects enabling objects with circular
         * references to be compared.
         *
         * @private
         * @param {Object} object The object to compare.
         * @param {Object} other The other object to compare.
         * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
         * @param {Function} customizer The function to customize comparisons.
         * @param {Function} equalFunc The function to determine equivalents of values.
         * @param {Object} [stack] Tracks traversed `object` and `other` objects.
         * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
         */
        function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) {
          var objIsArr = isArray(object),
              othIsArr = isArray(other),
              objTag = objIsArr ? arrayTag : getTag(object),
              othTag = othIsArr ? arrayTag : getTag(other);
    
          objTag = objTag == argsTag ? objectTag : objTag;
          othTag = othTag == argsTag ? objectTag : othTag;
    
          var objIsObj = objTag == objectTag,
              othIsObj = othTag == objectTag,
              isSameTag = objTag == othTag;
    
          if (isSameTag && isBuffer(object)) {
            if (!isBuffer(other)) {
              return false;
            }
            objIsArr = true;
            objIsObj = false;
          }
          if (isSameTag && !objIsObj) {
            stack || (stack = new Stack);
            return (objIsArr || isTypedArray(object))
              ? equalArrays(object, other, bitmask, customizer, equalFunc, stack)
              : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack);
          }
          if (!(bitmask & COMPARE_PARTIAL_FLAG)) {
            var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'),
                othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__');
    
            if (objIsWrapped || othIsWrapped) {
              var objUnwrapped = objIsWrapped ? object.value() : object,
                  othUnwrapped = othIsWrapped ? other.value() : other;
    
              stack || (stack = new Stack);
              return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack);
            }
          }
          if (!isSameTag) {
            return false;
          }
          stack || (stack = new Stack);
          return equalObjects(object, other, bitmask, customizer, equalFunc, stack);
        }
    
        /**
         * The base implementation of `_.isMap` without Node.js optimizations.
         *
         * @private
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a map, else `false`.
         */
        function baseIsMap(value) {
          return isObjectLike(value) && getTag(value) == mapTag;
        }
    
        /**
         * The base implementation of `_.isMatch` without support for iteratee shorthands.
         *
         * @private
         * @param {Object} object The object to inspect.
         * @param {Object} source The object of property values to match.
         * @param {Array} matchData The property names, values, and compare flags to match.
         * @param {Function} [customizer] The function to customize comparisons.
         * @returns {boolean} Returns `true` if `object` is a match, else `false`.
         */
        function baseIsMatch(object, source, matchData, customizer) {
          var index = matchData.length,
              length = index,
              noCustomizer = !customizer;
    
          if (object == null) {
            return !length;
          }
          object = Object(object);
          while (index--) {
            var data = matchData[index];
            if ((noCustomizer && data[2])
                  ? data[1] !== object[data[0]]
                  : !(data[0] in object)
                ) {
              return false;
            }
          }
          while (++index < length) {
            data = matchData[index];
            var key = data[0],
                objValue = object[key],
                srcValue = data[1];
    
            if (noCustomizer && data[2]) {
              if (objValue === undefined && !(key in object)) {
                return false;
              }
            } else {
              var stack = new Stack;
              if (customizer) {
                var result = customizer(objValue, srcValue, key, object, source, stack);
              }
              if (!(result === undefined
                    ? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack)
                    : result
                  )) {
                return false;
              }
            }
          }
          return true;
        }
    
        /**
         * The base implementation of `_.isNative` without bad shim checks.
         *
         * @private
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a native function,
         *  else `false`.
         */
        function baseIsNative(value) {
          if (!isObject(value) || isMasked(value)) {
            return false;
          }
          var pattern = isFunction(value) ? reIsNative : reIsHostCtor;
          return pattern.test(toSource(value));
        }
    
        /**
         * The base implementation of `_.isRegExp` without Node.js optimizations.
         *
         * @private
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.
         */
        function baseIsRegExp(value) {
          return isObjectLike(value) && baseGetTag(value) == regexpTag;
        }
    
        /**
         * The base implementation of `_.isSet` without Node.js optimizations.
         *
         * @private
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a set, else `false`.
         */
        function baseIsSet(value) {
          return isObjectLike(value) && getTag(value) == setTag;
        }
    
        /**
         * The base implementation of `_.isTypedArray` without Node.js optimizations.
         *
         * @private
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.
         */
        function baseIsTypedArray(value) {
          return isObjectLike(value) &&
            isLength(value.length) && !!typedArrayTags[baseGetTag(value)];
        }
    
        /**
         * The base implementation of `_.iteratee`.
         *
         * @private
         * @param {*} [value=_.identity] The value to convert to an iteratee.
         * @returns {Function} Returns the iteratee.
         */
        function baseIteratee(value) {
          // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9.
          // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details.
          if (typeof value == 'function') {
            return value;
          }
          if (value == null) {
            return identity;
          }
          if (typeof value == 'object') {
            return isArray(value)
              ? baseMatchesProperty(value[0], value[1])
              : baseMatches(value);
          }
          return property(value);
        }
    
        /**
         * The base implementation of `_.keys` which doesn't treat sparse arrays as dense.
         *
         * @private
         * @param {Object} object The object to query.
         * @returns {Array} Returns the array of property names.
         */
        function baseKeys(object) {
          if (!isPrototype(object)) {
            return nativeKeys(object);
          }
          var result = [];
          for (var key in Object(object)) {
            if (hasOwnProperty.call(object, key) && key != 'constructor') {
              result.push(key);
            }
          }
          return result;
        }
    
        /**
         * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense.
         *
         * @private
         * @param {Object} object The object to query.
         * @returns {Array} Returns the array of property names.
         */
        function baseKeysIn(object) {
          if (!isObject(object)) {
            return nativeKeysIn(object);
          }
          var isProto = isPrototype(object),
              result = [];
    
          for (var key in object) {
            if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {
              result.push(key);
            }
          }
          return result;
        }
    
        /**
         * The base implementation of `_.lt` which doesn't coerce arguments.
         *
         * @private
         * @param {*} value The value to compare.
         * @param {*} other The other value to compare.
         * @returns {boolean} Returns `true` if `value` is less than `other`,
         *  else `false`.
         */
        function baseLt(value, other) {
          return value < other;
        }
    
        /**
         * The base implementation of `_.map` without support for iteratee shorthands.
         *
         * @private
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} iteratee The function invoked per iteration.
         * @returns {Array} Returns the new mapped array.
         */
        function baseMap(collection, iteratee) {
          var index = -1,
              result = isArrayLike(collection) ? Array(collection.length) : [];
    
          baseEach(collection, function(value, key, collection) {
            result[++index] = iteratee(value, key, collection);
          });
          return result;
        }
    
        /**
         * The base implementation of `_.matches` which doesn't clone `source`.
         *
         * @private
         * @param {Object} source The object of property values to match.
         * @returns {Function} Returns the new spec function.
         */
        function baseMatches(source) {
          var matchData = getMatchData(source);
          if (matchData.length == 1 && matchData[0][2]) {
            return matchesStrictComparable(matchData[0][0], matchData[0][1]);
          }
          return function(object) {
            return object === source || baseIsMatch(object, source, matchData);
          };
        }
    
        /**
         * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`.
         *
         * @private
         * @param {string} path The path of the property to get.
         * @param {*} srcValue The value to match.
         * @returns {Function} Returns the new spec function.
         */
        function baseMatchesProperty(path, srcValue) {
          if (isKey(path) && isStrictComparable(srcValue)) {
            return matchesStrictComparable(toKey(path), srcValue);
          }
          return function(object) {
            var objValue = get(object, path);
            return (objValue === undefined && objValue === srcValue)
              ? hasIn(object, path)
              : baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG);
          };
        }
    
        /**
         * The base implementation of `_.merge` without support for multiple sources.
         *
         * @private
         * @param {Object} object The destination object.
         * @param {Object} source The source object.
         * @param {number} srcIndex The index of `source`.
         * @param {Function} [customizer] The function to customize merged values.
         * @param {Object} [stack] Tracks traversed source values and their merged
         *  counterparts.
         */
        function baseMerge(object, source, srcIndex, customizer, stack) {
          if (object === source) {
            return;
          }
          baseFor(source, function(srcValue, key) {
            stack || (stack = new Stack);
            if (isObject(srcValue)) {
              baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack);
            }
            else {
              var newValue = customizer
                ? customizer(safeGet(object, key), srcValue, (key + ''), object, source, stack)
                : undefined;
    
              if (newValue === undefined) {
                newValue = srcValue;
              }
              assignMergeValue(object, key, newValue);
            }
          }, keysIn);
        }
    
        /**
         * A specialized version of `baseMerge` for arrays and objects which performs
         * deep merges and tracks traversed objects enabling objects with circular
         * references to be merged.
         *
         * @private
         * @param {Object} object The destination object.
         * @param {Object} source The source object.
         * @param {string} key The key of the value to merge.
         * @param {number} srcIndex The index of `source`.
         * @param {Function} mergeFunc The function to merge values.
         * @param {Function} [customizer] The function to customize assigned values.
         * @param {Object} [stack] Tracks traversed source values and their merged
         *  counterparts.
         */
        function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) {
          var objValue = safeGet(object, key),
              srcValue = safeGet(source, key),
              stacked = stack.get(srcValue);
    
          if (stacked) {
            assignMergeValue(object, key, stacked);
            return;
          }
          var newValue = customizer
            ? customizer(objValue, srcValue, (key + ''), object, source, stack)
            : undefined;
    
          var isCommon = newValue === undefined;
    
          if (isCommon) {
            var isArr = isArray(srcValue),
                isBuff = !isArr && isBuffer(srcValue),
                isTyped = !isArr && !isBuff && isTypedArray(srcValue);
    
            newValue = srcValue;
            if (isArr || isBuff || isTyped) {
              if (isArray(objValue)) {
                newValue = objValue;
              }
              else if (isArrayLikeObject(objValue)) {
                newValue = copyArray(objValue);
              }
              else if (isBuff) {
                isCommon = false;
                newValue = cloneBuffer(srcValue, true);
              }
              else if (isTyped) {
                isCommon = false;
                newValue = cloneTypedArray(srcValue, true);
              }
              else {
                newValue = [];
              }
            }
            else if (isPlainObject(srcValue) || isArguments(srcValue)) {
              newValue = objValue;
              if (isArguments(objValue)) {
                newValue = toPlainObject(objValue);
              }
              else if (!isObject(objValue) || isFunction(objValue)) {
                newValue = initCloneObject(srcValue);
              }
            }
            else {
              isCommon = false;
            }
          }
          if (isCommon) {
            // Recursively merge objects and arrays (susceptible to call stack limits).
            stack.set(srcValue, newValue);
            mergeFunc(newValue, srcValue, srcIndex, customizer, stack);
            stack['delete'](srcValue);
          }
          assignMergeValue(object, key, newValue);
        }
    
        /**
         * The base implementation of `_.nth` which doesn't coerce arguments.
         *
         * @private
         * @param {Array} array The array to query.
         * @param {number} n The index of the element to return.
         * @returns {*} Returns the nth element of `array`.
         */
        function baseNth(array, n) {
          var length = array.length;
          if (!length) {
            return;
          }
          n += n < 0 ? length : 0;
          return isIndex(n, length) ? array[n] : undefined;
        }
    
        /**
         * The base implementation of `_.orderBy` without param guards.
         *
         * @private
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by.
         * @param {string[]} orders The sort orders of `iteratees`.
         * @returns {Array} Returns the new sorted array.
         */
        function baseOrderBy(collection, iteratees, orders) {
          var index = -1;
          iteratees = arrayMap(iteratees.length ? iteratees : [identity], baseUnary(getIteratee()));
    
          var result = baseMap(collection, function(value, key, collection) {
            var criteria = arrayMap(iteratees, function(iteratee) {
              return iteratee(value);
            });
            return { 'criteria': criteria, 'index': ++index, 'value': value };
          });
    
          return baseSortBy(result, function(object, other) {
            return compareMultiple(object, other, orders);
          });
        }
    
        /**
         * The base implementation of `_.pick` without support for individual
         * property identifiers.
         *
         * @private
         * @param {Object} object The source object.
         * @param {string[]} paths The property paths to pick.
         * @returns {Object} Returns the new object.
         */
        function basePick(object, paths) {
          return basePickBy(object, paths, function(value, path) {
            return hasIn(object, path);
          });
        }
    
        /**
         * The base implementation of  `_.pickBy` without support for iteratee shorthands.
         *
         * @private
         * @param {Object} object The source object.
         * @param {string[]} paths The property paths to pick.
         * @param {Function} predicate The function invoked per property.
         * @returns {Object} Returns the new object.
         */
        function basePickBy(object, paths, predicate) {
          var index = -1,
              length = paths.length,
              result = {};
    
          while (++index < length) {
            var path = paths[index],
                value = baseGet(object, path);
    
            if (predicate(value, path)) {
              baseSet(result, castPath(path, object), value);
            }
          }
          return result;
        }
    
        /**
         * A specialized version of `baseProperty` which supports deep paths.
         *
         * @private
         * @param {Array|string} path The path of the property to get.
         * @returns {Function} Returns the new accessor function.
         */
        function basePropertyDeep(path) {
          return function(object) {
            return baseGet(object, path);
          };
        }
    
        /**
         * The base implementation of `_.pullAllBy` without support for iteratee
         * shorthands.
         *
         * @private
         * @param {Array} array The array to modify.
         * @param {Array} values The values to remove.
         * @param {Function} [iteratee] The iteratee invoked per element.
         * @param {Function} [comparator] The comparator invoked per element.
         * @returns {Array} Returns `array`.
         */
        function basePullAll(array, values, iteratee, comparator) {
          var indexOf = comparator ? baseIndexOfWith : baseIndexOf,
              index = -1,
              length = values.length,
              seen = array;
    
          if (array === values) {
            values = copyArray(values);
          }
          if (iteratee) {
            seen = arrayMap(array, baseUnary(iteratee));
          }
          while (++index < length) {
            var fromIndex = 0,
                value = values[index],
                computed = iteratee ? iteratee(value) : value;
    
            while ((fromIndex = indexOf(seen, computed, fromIndex, comparator)) > -1) {
              if (seen !== array) {
                splice.call(seen, fromIndex, 1);
              }
              splice.call(array, fromIndex, 1);
            }
          }
          return array;
        }
    
        /**
         * The base implementation of `_.pullAt` without support for individual
         * indexes or capturing the removed elements.
         *
         * @private
         * @param {Array} array The array to modify.
         * @param {number[]} indexes The indexes of elements to remove.
         * @returns {Array} Returns `array`.
         */
        function basePullAt(array, indexes) {
          var length = array ? indexes.length : 0,
              lastIndex = length - 1;
    
          while (length--) {
            var index = indexes[length];
            if (length == lastIndex || index !== previous) {
              var previous = index;
              if (isIndex(index)) {
                splice.call(array, index, 1);
              } else {
                baseUnset(array, index);
              }
            }
          }
          return array;
        }
    
        /**
         * The base implementation of `_.random` without support for returning
         * floating-point numbers.
         *
         * @private
         * @param {number} lower The lower bound.
         * @param {number} upper The upper bound.
         * @returns {number} Returns the random number.
         */
        function baseRandom(lower, upper) {
          return lower + nativeFloor(nativeRandom() * (upper - lower + 1));
        }
    
        /**
         * The base implementation of `_.range` and `_.rangeRight` which doesn't
         * coerce arguments.
         *
         * @private
         * @param {number} start The start of the range.
         * @param {number} end The end of the range.
         * @param {number} step The value to increment or decrement by.
         * @param {boolean} [fromRight] Specify iterating from right to left.
         * @returns {Array} Returns the range of numbers.
         */
        function baseRange(start, end, step, fromRight) {
          var index = -1,
              length = nativeMax(nativeCeil((end - start) / (step || 1)), 0),
              result = Array(length);
    
          while (length--) {
            result[fromRight ? length : ++index] = start;
            start += step;
          }
          return result;
        }
    
        /**
         * The base implementation of `_.repeat` which doesn't coerce arguments.
         *
         * @private
         * @param {string} string The string to repeat.
         * @param {number} n The number of times to repeat the string.
         * @returns {string} Returns the repeated string.
         */
        function baseRepeat(string, n) {
          var result = '';
          if (!string || n < 1 || n > MAX_SAFE_INTEGER) {
            return result;
          }
          // Leverage the exponentiation by squaring algorithm for a faster repeat.
          // See https://en.wikipedia.org/wiki/Exponentiation_by_squaring for more details.
          do {
            if (n % 2) {
              result += string;
            }
            n = nativeFloor(n / 2);
            if (n) {
              string += string;
            }
          } while (n);
    
          return result;
        }
    
        /**
         * The base implementation of `_.rest` which doesn't validate or coerce arguments.
         *
         * @private
         * @param {Function} func The function to apply a rest parameter to.
         * @param {number} [start=func.length-1] The start position of the rest parameter.
         * @returns {Function} Returns the new function.
         */
        function baseRest(func, start) {
          return setToString(overRest(func, start, identity), func + '');
        }
    
        /**
         * The base implementation of `_.sample`.
         *
         * @private
         * @param {Array|Object} collection The collection to sample.
         * @returns {*} Returns the random element.
         */
        function baseSample(collection) {
          return arraySample(values(collection));
        }
    
        /**
         * The base implementation of `_.sampleSize` without param guards.
         *
         * @private
         * @param {Array|Object} collection The collection to sample.
         * @param {number} n The number of elements to sample.
         * @returns {Array} Returns the random elements.
         */
        function baseSampleSize(collection, n) {
          var array = values(collection);
          return shuffleSelf(array, baseClamp(n, 0, array.length));
        }
    
        /**
         * The base implementation of `_.set`.
         *
         * @private
         * @param {Object} object The object to modify.
         * @param {Array|string} path The path of the property to set.
         * @param {*} value The value to set.
         * @param {Function} [customizer] The function to customize path creation.
         * @returns {Object} Returns `object`.
         */
        function baseSet(object, path, value, customizer) {
          if (!isObject(object)) {
            return object;
          }
          path = castPath(path, object);
    
          var index = -1,
              length = path.length,
              lastIndex = length - 1,
              nested = object;
    
          while (nested != null && ++index < length) {
            var key = toKey(path[index]),
                newValue = value;
    
            if (index != lastIndex) {
              var objValue = nested[key];
              newValue = customizer ? customizer(objValue, key, nested) : undefined;
              if (newValue === undefined) {
                newValue = isObject(objValue)
                  ? objValue
                  : (isIndex(path[index + 1]) ? [] : {});
              }
            }
            assignValue(nested, key, newValue);
            nested = nested[key];
          }
          return object;
        }
    
        /**
         * The base implementation of `setData` without support for hot loop shorting.
         *
         * @private
         * @param {Function} func The function to associate metadata with.
         * @param {*} data The metadata.
         * @returns {Function} Returns `func`.
         */
        var baseSetData = !metaMap ? identity : function(func, data) {
          metaMap.set(func, data);
          return func;
        };
    
        /**
         * The base implementation of `setToString` without support for hot loop shorting.
         *
         * @private
         * @param {Function} func The function to modify.
         * @param {Function} string The `toString` result.
         * @returns {Function} Returns `func`.
         */
        var baseSetToString = !defineProperty ? identity : function(func, string) {
          return defineProperty(func, 'toString', {
            'configurable': true,
            'enumerable': false,
            'value': constant(string),
            'writable': true
          });
        };
    
        /**
         * The base implementation of `_.shuffle`.
         *
         * @private
         * @param {Array|Object} collection The collection to shuffle.
         * @returns {Array} Returns the new shuffled array.
         */
        function baseShuffle(collection) {
          return shuffleSelf(values(collection));
        }
    
        /**
         * The base implementation of `_.slice` without an iteratee call guard.
         *
         * @private
         * @param {Array} array The array to slice.
         * @param {number} [start=0] The start position.
         * @param {number} [end=array.length] The end position.
         * @returns {Array} Returns the slice of `array`.
         */
        function baseSlice(array, start, end) {
          var index = -1,
              length = array.length;
    
          if (start < 0) {
            start = -start > length ? 0 : (length + start);
          }
          end = end > length ? length : end;
          if (end < 0) {
            end += length;
          }
          length = start > end ? 0 : ((end - start) >>> 0);
          start >>>= 0;
    
          var result = Array(length);
          while (++index < length) {
            result[index] = array[index + start];
          }
          return result;
        }
    
        /**
         * The base implementation of `_.some` without support for iteratee shorthands.
         *
         * @private
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} predicate The function invoked per iteration.
         * @returns {boolean} Returns `true` if any element passes the predicate check,
         *  else `false`.
         */
        function baseSome(collection, predicate) {
          var result;
    
          baseEach(collection, function(value, index, collection) {
            result = predicate(value, index, collection);
            return !result;
          });
          return !!result;
        }
    
        /**
         * The base implementation of `_.sortedIndex` and `_.sortedLastIndex` which
         * performs a binary search of `array` to determine the index at which `value`
         * should be inserted into `array` in order to maintain its sort order.
         *
         * @private
         * @param {Array} array The sorted array to inspect.
         * @param {*} value The value to evaluate.
         * @param {boolean} [retHighest] Specify returning the highest qualified index.
         * @returns {number} Returns the index at which `value` should be inserted
         *  into `array`.
         */
        function baseSortedIndex(array, value, retHighest) {
          var low = 0,
              high = array == null ? low : array.length;
    
          if (typeof value == 'number' && value === value && high <= HALF_MAX_ARRAY_LENGTH) {
            while (low < high) {
              var mid = (low + high) >>> 1,
                  computed = array[mid];
    
              if (computed !== null && !isSymbol(computed) &&
                  (retHighest ? (computed <= value) : (computed < value))) {
                low = mid + 1;
              } else {
                high = mid;
              }
            }
            return high;
          }
          return baseSortedIndexBy(array, value, identity, retHighest);
        }
    
        /**
         * The base implementation of `_.sortedIndexBy` and `_.sortedLastIndexBy`
         * which invokes `iteratee` for `value` and each element of `array` to compute
         * their sort ranking. The iteratee is invoked with one argument; (value).
         *
         * @private
         * @param {Array} array The sorted array to inspect.
         * @param {*} value The value to evaluate.
         * @param {Function} iteratee The iteratee invoked per element.
         * @param {boolean} [retHighest] Specify returning the highest qualified index.
         * @returns {number} Returns the index at which `value` should be inserted
         *  into `array`.
         */
        function baseSortedIndexBy(array, value, iteratee, retHighest) {
          value = iteratee(value);
    
          var low = 0,
              high = array == null ? 0 : array.length,
              valIsNaN = value !== value,
              valIsNull = value === null,
              valIsSymbol = isSymbol(value),
              valIsUndefined = value === undefined;
    
          while (low < high) {
            var mid = nativeFloor((low + high) / 2),
                computed = iteratee(array[mid]),
                othIsDefined = computed !== undefined,
                othIsNull = computed === null,
                othIsReflexive = computed === computed,
                othIsSymbol = isSymbol(computed);
    
            if (valIsNaN) {
              var setLow = retHighest || othIsReflexive;
            } else if (valIsUndefined) {
              setLow = othIsReflexive && (retHighest || othIsDefined);
            } else if (valIsNull) {
              setLow = othIsReflexive && othIsDefined && (retHighest || !othIsNull);
            } else if (valIsSymbol) {
              setLow = othIsReflexive && othIsDefined && !othIsNull && (retHighest || !othIsSymbol);
            } else if (othIsNull || othIsSymbol) {
              setLow = false;
            } else {
              setLow = retHighest ? (computed <= value) : (computed < value);
            }
            if (setLow) {
              low = mid + 1;
            } else {
              high = mid;
            }
          }
          return nativeMin(high, MAX_ARRAY_INDEX);
        }
    
        /**
         * The base implementation of `_.sortedUniq` and `_.sortedUniqBy` without
         * support for iteratee shorthands.
         *
         * @private
         * @param {Array} array The array to inspect.
         * @param {Function} [iteratee] The iteratee invoked per element.
         * @returns {Array} Returns the new duplicate free array.
         */
        function baseSortedUniq(array, iteratee) {
          var index = -1,
              length = array.length,
              resIndex = 0,
              result = [];
    
          while (++index < length) {
            var value = array[index],
                computed = iteratee ? iteratee(value) : value;
    
            if (!index || !eq(computed, seen)) {
              var seen = computed;
              result[resIndex++] = value === 0 ? 0 : value;
            }
          }
          return result;
        }
    
        /**
         * The base implementation of `_.toNumber` which doesn't ensure correct
         * conversions of binary, hexadecimal, or octal string values.
         *
         * @private
         * @param {*} value The value to process.
         * @returns {number} Returns the number.
         */
        function baseToNumber(value) {
          if (typeof value == 'number') {
            return value;
          }
          if (isSymbol(value)) {
            return NAN;
          }
          return +value;
        }
    
        /**
         * The base implementation of `_.toString` which doesn't convert nullish
         * values to empty strings.
         *
         * @private
         * @param {*} value The value to process.
         * @returns {string} Returns the string.
         */
        function baseToString(value) {
          // Exit early for strings to avoid a performance hit in some environments.
          if (typeof value == 'string') {
            return value;
          }
          if (isArray(value)) {
            // Recursively convert values (susceptible to call stack limits).
            return arrayMap(value, baseToString) + '';
          }
          if (isSymbol(value)) {
            return symbolToString ? symbolToString.call(value) : '';
          }
          var result = (value + '');
          return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;
        }
    
        /**
         * The base implementation of `_.uniqBy` without support for iteratee shorthands.
         *
         * @private
         * @param {Array} array The array to inspect.
         * @param {Function} [iteratee] The iteratee invoked per element.
         * @param {Function} [comparator] The comparator invoked per element.
         * @returns {Array} Returns the new duplicate free array.
         */
        function baseUniq(array, iteratee, comparator) {
          var index = -1,
              includes = arrayIncludes,
              length = array.length,
              isCommon = true,
              result = [],
              seen = result;
    
          if (comparator) {
            isCommon = false;
            includes = arrayIncludesWith;
          }
          else if (length >= LARGE_ARRAY_SIZE) {
            var set = iteratee ? null : createSet(array);
            if (set) {
              return setToArray(set);
            }
            isCommon = false;
            includes = cacheHas;
            seen = new SetCache;
          }
          else {
            seen = iteratee ? [] : result;
          }
          outer:
          while (++index < length) {
            var value = array[index],
                computed = iteratee ? iteratee(value) : value;
    
            value = (comparator || value !== 0) ? value : 0;
            if (isCommon && computed === computed) {
              var seenIndex = seen.length;
              while (seenIndex--) {
                if (seen[seenIndex] === computed) {
                  continue outer;
                }
              }
              if (iteratee) {
                seen.push(computed);
              }
              result.push(value);
            }
            else if (!includes(seen, computed, comparator)) {
              if (seen !== result) {
                seen.push(computed);
              }
              result.push(value);
            }
          }
          return result;
        }
    
        /**
         * The base implementation of `_.unset`.
         *
         * @private
         * @param {Object} object The object to modify.
         * @param {Array|string} path The property path to unset.
         * @returns {boolean} Returns `true` if the property is deleted, else `false`.
         */
        function baseUnset(object, path) {
          path = castPath(path, object);
          object = parent(object, path);
          return object == null || delete object[toKey(last(path))];
        }
    
        /**
         * The base implementation of `_.update`.
         *
         * @private
         * @param {Object} object The object to modify.
         * @param {Array|string} path The path of the property to update.
         * @param {Function} updater The function to produce the updated value.
         * @param {Function} [customizer] The function to customize path creation.
         * @returns {Object} Returns `object`.
         */
        function baseUpdate(object, path, updater, customizer) {
          return baseSet(object, path, updater(baseGet(object, path)), customizer);
        }
    
        /**
         * The base implementation of methods like `_.dropWhile` and `_.takeWhile`
         * without support for iteratee shorthands.
         *
         * @private
         * @param {Array} array The array to query.
         * @param {Function} predicate The function invoked per iteration.
         * @param {boolean} [isDrop] Specify dropping elements instead of taking them.
         * @param {boolean} [fromRight] Specify iterating from right to left.
         * @returns {Array} Returns the slice of `array`.
         */
        function baseWhile(array, predicate, isDrop, fromRight) {
          var length = array.length,
              index = fromRight ? length : -1;
    
          while ((fromRight ? index-- : ++index < length) &&
            predicate(array[index], index, array)) {}
    
          return isDrop
            ? baseSlice(array, (fromRight ? 0 : index), (fromRight ? index + 1 : length))
            : baseSlice(array, (fromRight ? index + 1 : 0), (fromRight ? length : index));
        }
    
        /**
         * The base implementation of `wrapperValue` which returns the result of
         * performing a sequence of actions on the unwrapped `value`, where each
         * successive action is supplied the return value of the previous.
         *
         * @private
         * @param {*} value The unwrapped value.
         * @param {Array} actions Actions to perform to resolve the unwrapped value.
         * @returns {*} Returns the resolved value.
         */
        function baseWrapperValue(value, actions) {
          var result = value;
          if (result instanceof LazyWrapper) {
            result = result.value();
          }
          return arrayReduce(actions, function(result, action) {
            return action.func.apply(action.thisArg, arrayPush([result], action.args));
          }, result);
        }
    
        /**
         * The base implementation of methods like `_.xor`, without support for
         * iteratee shorthands, that accepts an array of arrays to inspect.
         *
         * @private
         * @param {Array} arrays The arrays to inspect.
         * @param {Function} [iteratee] The iteratee invoked per element.
         * @param {Function} [comparator] The comparator invoked per element.
         * @returns {Array} Returns the new array of values.
         */
        function baseXor(arrays, iteratee, comparator) {
          var length = arrays.length;
          if (length < 2) {
            return length ? baseUniq(arrays[0]) : [];
          }
          var index = -1,
              result = Array(length);
    
          while (++index < length) {
            var array = arrays[index],
                othIndex = -1;
    
            while (++othIndex < length) {
              if (othIndex != index) {
                result[index] = baseDifference(result[index] || array, arrays[othIndex], iteratee, comparator);
              }
            }
          }
          return baseUniq(baseFlatten(result, 1), iteratee, comparator);
        }
    
        /**
         * This base implementation of `_.zipObject` which assigns values using `assignFunc`.
         *
         * @private
         * @param {Array} props The property identifiers.
         * @param {Array} values The property values.
         * @param {Function} assignFunc The function to assign values.
         * @returns {Object} Returns the new object.
         */
        function baseZipObject(props, values, assignFunc) {
          var index = -1,
              length = props.length,
              valsLength = values.length,
              result = {};
    
          while (++index < length) {
            var value = index < valsLength ? values[index] : undefined;
            assignFunc(result, props[index], value);
          }
          return result;
        }
    
        /**
         * Casts `value` to an empty array if it's not an array like object.
         *
         * @private
         * @param {*} value The value to inspect.
         * @returns {Array|Object} Returns the cast array-like object.
         */
        function castArrayLikeObject(value) {
          return isArrayLikeObject(value) ? value : [];
        }
    
        /**
         * Casts `value` to `identity` if it's not a function.
         *
         * @private
         * @param {*} value The value to inspect.
         * @returns {Function} Returns cast function.
         */
        function castFunction(value) {
          return typeof value == 'function' ? value : identity;
        }
    
        /**
         * Casts `value` to a path array if it's not one.
         *
         * @private
         * @param {*} value The value to inspect.
         * @param {Object} [object] The object to query keys on.
         * @returns {Array} Returns the cast property path array.
         */
        function castPath(value, object) {
          if (isArray(value)) {
            return value;
          }
          return isKey(value, object) ? [value] : stringToPath(toString(value));
        }
    
        /**
         * A `baseRest` alias which can be replaced with `identity` by module
         * replacement plugins.
         *
         * @private
         * @type {Function}
         * @param {Function} func The function to apply a rest parameter to.
         * @returns {Function} Returns the new function.
         */
        var castRest = baseRest;
    
        /**
         * Casts `array` to a slice if it's needed.
         *
         * @private
         * @param {Array} array The array to inspect.
         * @param {number} start The start position.
         * @param {number} [end=array.length] The end position.
         * @returns {Array} Returns the cast slice.
         */
        function castSlice(array, start, end) {
          var length = array.length;
          end = end === undefined ? length : end;
          return (!start && end >= length) ? array : baseSlice(array, start, end);
        }
    
        /**
         * A simple wrapper around the global [`clearTimeout`](https://mdn.io/clearTimeout).
         *
         * @private
         * @param {number|Object} id The timer id or timeout object of the timer to clear.
         */
        var clearTimeout = ctxClearTimeout || function(id) {
          return root.clearTimeout(id);
        };
    
        /**
         * Creates a clone of  `buffer`.
         *
         * @private
         * @param {Buffer} buffer The buffer to clone.
         * @param {boolean} [isDeep] Specify a deep clone.
         * @returns {Buffer} Returns the cloned buffer.
         */
        function cloneBuffer(buffer, isDeep) {
          if (isDeep) {
            return buffer.slice();
          }
          var length = buffer.length,
              result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length);
    
          buffer.copy(result);
          return result;
        }
    
        /**
         * Creates a clone of `arrayBuffer`.
         *
         * @private
         * @param {ArrayBuffer} arrayBuffer The array buffer to clone.
         * @returns {ArrayBuffer} Returns the cloned array buffer.
         */
        function cloneArrayBuffer(arrayBuffer) {
          var result = new arrayBuffer.constructor(arrayBuffer.byteLength);
          new Uint8Array(result).set(new Uint8Array(arrayBuffer));
          return result;
        }
    
        /**
         * Creates a clone of `dataView`.
         *
         * @private
         * @param {Object} dataView The data view to clone.
         * @param {boolean} [isDeep] Specify a deep clone.
         * @returns {Object} Returns the cloned data view.
         */
        function cloneDataView(dataView, isDeep) {
          var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer;
          return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength);
        }
    
        /**
         * Creates a clone of `regexp`.
         *
         * @private
         * @param {Object} regexp The regexp to clone.
         * @returns {Object} Returns the cloned regexp.
         */
        function cloneRegExp(regexp) {
          var result = new regexp.constructor(regexp.source, reFlags.exec(regexp));
          result.lastIndex = regexp.lastIndex;
          return result;
        }
    
        /**
         * Creates a clone of the `symbol` object.
         *
         * @private
         * @param {Object} symbol The symbol object to clone.
         * @returns {Object} Returns the cloned symbol object.
         */
        function cloneSymbol(symbol) {
          return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {};
        }
    
        /**
         * Creates a clone of `typedArray`.
         *
         * @private
         * @param {Object} typedArray The typed array to clone.
         * @param {boolean} [isDeep] Specify a deep clone.
         * @returns {Object} Returns the cloned typed array.
         */
        function cloneTypedArray(typedArray, isDeep) {
          var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer;
          return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length);
        }
    
        /**
         * Compares values to sort them in ascending order.
         *
         * @private
         * @param {*} value The value to compare.
         * @param {*} other The other value to compare.
         * @returns {number} Returns the sort order indicator for `value`.
         */
        function compareAscending(value, other) {
          if (value !== other) {
            var valIsDefined = value !== undefined,
                valIsNull = value === null,
                valIsReflexive = value === value,
                valIsSymbol = isSymbol(value);
    
            var othIsDefined = other !== undefined,
                othIsNull = other === null,
                othIsReflexive = other === other,
                othIsSymbol = isSymbol(other);
    
            if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) ||
                (valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) ||
                (valIsNull && othIsDefined && othIsReflexive) ||
                (!valIsDefined && othIsReflexive) ||
                !valIsReflexive) {
              return 1;
            }
            if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) ||
                (othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) ||
                (othIsNull && valIsDefined && valIsReflexive) ||
                (!othIsDefined && valIsReflexive) ||
                !othIsReflexive) {
              return -1;
            }
          }
          return 0;
        }
    
        /**
         * Used by `_.orderBy` to compare multiple properties of a value to another
         * and stable sort them.
         *
         * If `orders` is unspecified, all values are sorted in ascending order. Otherwise,
         * specify an order of "desc" for descending or "asc" for ascending sort order
         * of corresponding values.
         *
         * @private
         * @param {Object} object The object to compare.
         * @param {Object} other The other object to compare.
         * @param {boolean[]|string[]} orders The order to sort by for each property.
         * @returns {number} Returns the sort order indicator for `object`.
         */
        function compareMultiple(object, other, orders) {
          var index = -1,
              objCriteria = object.criteria,
              othCriteria = other.criteria,
              length = objCriteria.length,
              ordersLength = orders.length;
    
          while (++index < length) {
            var result = compareAscending(objCriteria[index], othCriteria[index]);
            if (result) {
              if (index >= ordersLength) {
                return result;
              }
              var order = orders[index];
              return result * (order == 'desc' ? -1 : 1);
            }
          }
          // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications
          // that causes it, under certain circumstances, to provide the same value for
          // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247
          // for more details.
          //
          // This also ensures a stable sort in V8 and other engines.
          // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details.
          return object.index - other.index;
        }
    
        /**
         * Creates an array that is the composition of partially applied arguments,
         * placeholders, and provided arguments into a single array of arguments.
         *
         * @private
         * @param {Array} args The provided arguments.
         * @param {Array} partials The arguments to prepend to those provided.
         * @param {Array} holders The `partials` placeholder indexes.
         * @params {boolean} [isCurried] Specify composing for a curried function.
         * @returns {Array} Returns the new array of composed arguments.
         */
        function composeArgs(args, partials, holders, isCurried) {
          var argsIndex = -1,
              argsLength = args.length,
              holdersLength = holders.length,
              leftIndex = -1,
              leftLength = partials.length,
              rangeLength = nativeMax(argsLength - holdersLength, 0),
              result = Array(leftLength + rangeLength),
              isUncurried = !isCurried;
    
          while (++leftIndex < leftLength) {
            result[leftIndex] = partials[leftIndex];
          }
          while (++argsIndex < holdersLength) {
            if (isUncurried || argsIndex < argsLength) {
              result[holders[argsIndex]] = args[argsIndex];
            }
          }
          while (rangeLength--) {
            result[leftIndex++] = args[argsIndex++];
          }
          return result;
        }
    
        /**
         * This function is like `composeArgs` except that the arguments composition
         * is tailored for `_.partialRight`.
         *
         * @private
         * @param {Array} args The provided arguments.
         * @param {Array} partials The arguments to append to those provided.
         * @param {Array} holders The `partials` placeholder indexes.
         * @params {boolean} [isCurried] Specify composing for a curried function.
         * @returns {Array} Returns the new array of composed arguments.
         */
        function composeArgsRight(args, partials, holders, isCurried) {
          var argsIndex = -1,
              argsLength = args.length,
              holdersIndex = -1,
              holdersLength = holders.length,
              rightIndex = -1,
              rightLength = partials.length,
              rangeLength = nativeMax(argsLength - holdersLength, 0),
              result = Array(rangeLength + rightLength),
              isUncurried = !isCurried;
    
          while (++argsIndex < rangeLength) {
            result[argsIndex] = args[argsIndex];
          }
          var offset = argsIndex;
          while (++rightIndex < rightLength) {
            result[offset + rightIndex] = partials[rightIndex];
          }
          while (++holdersIndex < holdersLength) {
            if (isUncurried || argsIndex < argsLength) {
              result[offset + holders[holdersIndex]] = args[argsIndex++];
            }
          }
          return result;
        }
    
        /**
         * Copies the values of `source` to `array`.
         *
         * @private
         * @param {Array} source The array to copy values from.
         * @param {Array} [array=[]] The array to copy values to.
         * @returns {Array} Returns `array`.
         */
        function copyArray(source, array) {
          var index = -1,
              length = source.length;
    
          array || (array = Array(length));
          while (++index < length) {
            array[index] = source[index];
          }
          return array;
        }
    
        /**
         * Copies properties of `source` to `object`.
         *
         * @private
         * @param {Object} source The object to copy properties from.
         * @param {Array} props The property identifiers to copy.
         * @param {Object} [object={}] The object to copy properties to.
         * @param {Function} [customizer] The function to customize copied values.
         * @returns {Object} Returns `object`.
         */
        function copyObject(source, props, object, customizer) {
          var isNew = !object;
          object || (object = {});
    
          var index = -1,
              length = props.length;
    
          while (++index < length) {
            var key = props[index];
    
            var newValue = customizer
              ? customizer(object[key], source[key], key, object, source)
              : undefined;
    
            if (newValue === undefined) {
              newValue = source[key];
            }
            if (isNew) {
              baseAssignValue(object, key, newValue);
            } else {
              assignValue(object, key, newValue);
            }
          }
          return object;
        }
    
        /**
         * Copies own symbols of `source` to `object`.
         *
         * @private
         * @param {Object} source The object to copy symbols from.
         * @param {Object} [object={}] The object to copy symbols to.
         * @returns {Object} Returns `object`.
         */
        function copySymbols(source, object) {
          return copyObject(source, getSymbols(source), object);
        }
    
        /**
         * Copies own and inherited symbols of `source` to `object`.
         *
         * @private
         * @param {Object} source The object to copy symbols from.
         * @param {Object} [object={}] The object to copy symbols to.
         * @returns {Object} Returns `object`.
         */
        function copySymbolsIn(source, object) {
          return copyObject(source, getSymbolsIn(source), object);
        }
    
        /**
         * Creates a function like `_.groupBy`.
         *
         * @private
         * @param {Function} setter The function to set accumulator values.
         * @param {Function} [initializer] The accumulator object initializer.
         * @returns {Function} Returns the new aggregator function.
         */
        function createAggregator(setter, initializer) {
          return function(collection, iteratee) {
            var func = isArray(collection) ? arrayAggregator : baseAggregator,
                accumulator = initializer ? initializer() : {};
    
            return func(collection, setter, getIteratee(iteratee, 2), accumulator);
          };
        }
    
        /**
         * Creates a function like `_.assign`.
         *
         * @private
         * @param {Function} assigner The function to assign values.
         * @returns {Function} Returns the new assigner function.
         */
        function createAssigner(assigner) {
          return baseRest(function(object, sources) {
            var index = -1,
                length = sources.length,
                customizer = length > 1 ? sources[length - 1] : undefined,
                guard = length > 2 ? sources[2] : undefined;
    
            customizer = (assigner.length > 3 && typeof customizer == 'function')
              ? (length--, customizer)
              : undefined;
    
            if (guard && isIterateeCall(sources[0], sources[1], guard)) {
              customizer = length < 3 ? undefined : customizer;
              length = 1;
            }
            object = Object(object);
            while (++index < length) {
              var source = sources[index];
              if (source) {
                assigner(object, source, index, customizer);
              }
            }
            return object;
          });
        }
    
        /**
         * Creates a `baseEach` or `baseEachRight` function.
         *
         * @private
         * @param {Function} eachFunc The function to iterate over a collection.
         * @param {boolean} [fromRight] Specify iterating from right to left.
         * @returns {Function} Returns the new base function.
         */
        function createBaseEach(eachFunc, fromRight) {
          return function(collection, iteratee) {
            if (collection == null) {
              return collection;
            }
            if (!isArrayLike(collection)) {
              return eachFunc(collection, iteratee);
            }
            var length = collection.length,
                index = fromRight ? length : -1,
                iterable = Object(collection);
    
            while ((fromRight ? index-- : ++index < length)) {
              if (iteratee(iterable[index], index, iterable) === false) {
                break;
              }
            }
            return collection;
          };
        }
    
        /**
         * Creates a base function for methods like `_.forIn` and `_.forOwn`.
         *
         * @private
         * @param {boolean} [fromRight] Specify iterating from right to left.
         * @returns {Function} Returns the new base function.
         */
        function createBaseFor(fromRight) {
          return function(object, iteratee, keysFunc) {
            var index = -1,
                iterable = Object(object),
                props = keysFunc(object),
                length = props.length;
    
            while (length--) {
              var key = props[fromRight ? length : ++index];
              if (iteratee(iterable[key], key, iterable) === false) {
                break;
              }
            }
            return object;
          };
        }
    
        /**
         * Creates a function that wraps `func` to invoke it with the optional `this`
         * binding of `thisArg`.
         *
         * @private
         * @param {Function} func The function to wrap.
         * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
         * @param {*} [thisArg] The `this` binding of `func`.
         * @returns {Function} Returns the new wrapped function.
         */
        function createBind(func, bitmask, thisArg) {
          var isBind = bitmask & WRAP_BIND_FLAG,
              Ctor = createCtor(func);
    
          function wrapper() {
            var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;
            return fn.apply(isBind ? thisArg : this, arguments);
          }
          return wrapper;
        }
    
        /**
         * Creates a function like `_.lowerFirst`.
         *
         * @private
         * @param {string} methodName The name of the `String` case method to use.
         * @returns {Function} Returns the new case function.
         */
        function createCaseFirst(methodName) {
          return function(string) {
            string = toString(string);
    
            var strSymbols = hasUnicode(string)
              ? stringToArray(string)
              : undefined;
    
            var chr = strSymbols
              ? strSymbols[0]
              : string.charAt(0);
    
            var trailing = strSymbols
              ? castSlice(strSymbols, 1).join('')
              : string.slice(1);
    
            return chr[methodName]() + trailing;
          };
        }
    
        /**
         * Creates a function like `_.camelCase`.
         *
         * @private
         * @param {Function} callback The function to combine each word.
         * @returns {Function} Returns the new compounder function.
         */
        function createCompounder(callback) {
          return function(string) {
            return arrayReduce(words(deburr(string).replace(reApos, '')), callback, '');
          };
        }
    
        /**
         * Creates a function that produces an instance of `Ctor` regardless of
         * whether it was invoked as part of a `new` expression or by `call` or `apply`.
         *
         * @private
         * @param {Function} Ctor The constructor to wrap.
         * @returns {Function} Returns the new wrapped function.
         */
        function createCtor(Ctor) {
          return function() {
            // Use a `switch` statement to work with class constructors. See
            // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist
            // for more details.
            var args = arguments;
            switch (args.length) {
              case 0: return new Ctor;
              case 1: return new Ctor(args[0]);
              case 2: return new Ctor(args[0], args[1]);
              case 3: return new Ctor(args[0], args[1], args[2]);
              case 4: return new Ctor(args[0], args[1], args[2], args[3]);
              case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]);
              case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]);
              case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]);
            }
            var thisBinding = baseCreate(Ctor.prototype),
                result = Ctor.apply(thisBinding, args);
    
            // Mimic the constructor's `return` behavior.
            // See https://es5.github.io/#x13.2.2 for more details.
            return isObject(result) ? result : thisBinding;
          };
        }
    
        /**
         * Creates a function that wraps `func` to enable currying.
         *
         * @private
         * @param {Function} func The function to wrap.
         * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
         * @param {number} arity The arity of `func`.
         * @returns {Function} Returns the new wrapped function.
         */
        function createCurry(func, bitmask, arity) {
          var Ctor = createCtor(func);
    
          function wrapper() {
            var length = arguments.length,
                args = Array(length),
                index = length,
                placeholder = getHolder(wrapper);
    
            while (index--) {
              args[index] = arguments[index];
            }
            var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder)
              ? []
              : replaceHolders(args, placeholder);
    
            length -= holders.length;
            if (length < arity) {
              return createRecurry(
                func, bitmask, createHybrid, wrapper.placeholder, undefined,
                args, holders, undefined, undefined, arity - length);
            }
            var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;
            return apply(fn, this, args);
          }
          return wrapper;
        }
    
        /**
         * Creates a `_.find` or `_.findLast` function.
         *
         * @private
         * @param {Function} findIndexFunc The function to find the collection index.
         * @returns {Function} Returns the new find function.
         */
        function createFind(findIndexFunc) {
          return function(collection, predicate, fromIndex) {
            var iterable = Object(collection);
            if (!isArrayLike(collection)) {
              var iteratee = getIteratee(predicate, 3);
              collection = keys(collection);
              predicate = function(key) { return iteratee(iterable[key], key, iterable); };
            }
            var index = findIndexFunc(collection, predicate, fromIndex);
            return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined;
          };
        }
    
        /**
         * Creates a `_.flow` or `_.flowRight` function.
         *
         * @private
         * @param {boolean} [fromRight] Specify iterating from right to left.
         * @returns {Function} Returns the new flow function.
         */
        function createFlow(fromRight) {
          return flatRest(function(funcs) {
            var length = funcs.length,
                index = length,
                prereq = LodashWrapper.prototype.thru;
    
            if (fromRight) {
              funcs.reverse();
            }
            while (index--) {
              var func = funcs[index];
              if (typeof func != 'function') {
                throw new TypeError(FUNC_ERROR_TEXT);
              }
              if (prereq && !wrapper && getFuncName(func) == 'wrapper') {
                var wrapper = new LodashWrapper([], true);
              }
            }
            index = wrapper ? index : length;
            while (++index < length) {
              func = funcs[index];
    
              var funcName = getFuncName(func),
                  data = funcName == 'wrapper' ? getData(func) : undefined;
    
              if (data && isLaziable(data[0]) &&
                    data[1] == (WRAP_ARY_FLAG | WRAP_CURRY_FLAG | WRAP_PARTIAL_FLAG | WRAP_REARG_FLAG) &&
                    !data[4].length && data[9] == 1
                  ) {
                wrapper = wrapper[getFuncName(data[0])].apply(wrapper, data[3]);
              } else {
                wrapper = (func.length == 1 && isLaziable(func))
                  ? wrapper[funcName]()
                  : wrapper.thru(func);
              }
            }
            return function() {
              var args = arguments,
                  value = args[0];
    
              if (wrapper && args.length == 1 && isArray(value)) {
                return wrapper.plant(value).value();
              }
              var index = 0,
                  result = length ? funcs[index].apply(this, args) : value;
    
              while (++index < length) {
                result = funcs[index].call(this, result);
              }
              return result;
            };
          });
        }
    
        /**
         * Creates a function that wraps `func` to invoke it with optional `this`
         * binding of `thisArg`, partial application, and currying.
         *
         * @private
         * @param {Function|string} func The function or method name to wrap.
         * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
         * @param {*} [thisArg] The `this` binding of `func`.
         * @param {Array} [partials] The arguments to prepend to those provided to
         *  the new function.
         * @param {Array} [holders] The `partials` placeholder indexes.
         * @param {Array} [partialsRight] The arguments to append to those provided
         *  to the new function.
         * @param {Array} [holdersRight] The `partialsRight` placeholder indexes.
         * @param {Array} [argPos] The argument positions of the new function.
         * @param {number} [ary] The arity cap of `func`.
         * @param {number} [arity] The arity of `func`.
         * @returns {Function} Returns the new wrapped function.
         */
        function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) {
          var isAry = bitmask & WRAP_ARY_FLAG,
              isBind = bitmask & WRAP_BIND_FLAG,
              isBindKey = bitmask & WRAP_BIND_KEY_FLAG,
              isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG),
              isFlip = bitmask & WRAP_FLIP_FLAG,
              Ctor = isBindKey ? undefined : createCtor(func);
    
          function wrapper() {
            var length = arguments.length,
                args = Array(length),
                index = length;
    
            while (index--) {
              args[index] = arguments[index];
            }
            if (isCurried) {
              var placeholder = getHolder(wrapper),
                  holdersCount = countHolders(args, placeholder);
            }
            if (partials) {
              args = composeArgs(args, partials, holders, isCurried);
            }
            if (partialsRight) {
              args = composeArgsRight(args, partialsRight, holdersRight, isCurried);
            }
            length -= holdersCount;
            if (isCurried && length < arity) {
              var newHolders = replaceHolders(args, placeholder);
              return createRecurry(
                func, bitmask, createHybrid, wrapper.placeholder, thisArg,
                args, newHolders, argPos, ary, arity - length
              );
            }
            var thisBinding = isBind ? thisArg : this,
                fn = isBindKey ? thisBinding[func] : func;
    
            length = args.length;
            if (argPos) {
              args = reorder(args, argPos);
            } else if (isFlip && length > 1) {
              args.reverse();
            }
            if (isAry && ary < length) {
              args.length = ary;
            }
            if (this && this !== root && this instanceof wrapper) {
              fn = Ctor || createCtor(fn);
            }
            return fn.apply(thisBinding, args);
          }
          return wrapper;
        }
    
        /**
         * Creates a function like `_.invertBy`.
         *
         * @private
         * @param {Function} setter The function to set accumulator values.
         * @param {Function} toIteratee The function to resolve iteratees.
         * @returns {Function} Returns the new inverter function.
         */
        function createInverter(setter, toIteratee) {
          return function(object, iteratee) {
            return baseInverter(object, setter, toIteratee(iteratee), {});
          };
        }
    
        /**
         * Creates a function that performs a mathematical operation on two values.
         *
         * @private
         * @param {Function} operator The function to perform the operation.
         * @param {number} [defaultValue] The value used for `undefined` arguments.
         * @returns {Function} Returns the new mathematical operation function.
         */
        function createMathOperation(operator, defaultValue) {
          return function(value, other) {
            var result;
            if (value === undefined && other === undefined) {
              return defaultValue;
            }
            if (value !== undefined) {
              result = value;
            }
            if (other !== undefined) {
              if (result === undefined) {
                return other;
              }
              if (typeof value == 'string' || typeof other == 'string') {
                value = baseToString(value);
                other = baseToString(other);
              } else {
                value = baseToNumber(value);
                other = baseToNumber(other);
              }
              result = operator(value, other);
            }
            return result;
          };
        }
    
        /**
         * Creates a function like `_.over`.
         *
         * @private
         * @param {Function} arrayFunc The function to iterate over iteratees.
         * @returns {Function} Returns the new over function.
         */
        function createOver(arrayFunc) {
          return flatRest(function(iteratees) {
            iteratees = arrayMap(iteratees, baseUnary(getIteratee()));
            return baseRest(function(args) {
              var thisArg = this;
              return arrayFunc(iteratees, function(iteratee) {
                return apply(iteratee, thisArg, args);
              });
            });
          });
        }
    
        /**
         * Creates the padding for `string` based on `length`. The `chars` string
         * is truncated if the number of characters exceeds `length`.
         *
         * @private
         * @param {number} length The padding length.
         * @param {string} [chars=' '] The string used as padding.
         * @returns {string} Returns the padding for `string`.
         */
        function createPadding(length, chars) {
          chars = chars === undefined ? ' ' : baseToString(chars);
    
          var charsLength = chars.length;
          if (charsLength < 2) {
            return charsLength ? baseRepeat(chars, length) : chars;
          }
          var result = baseRepeat(chars, nativeCeil(length / stringSize(chars)));
          return hasUnicode(chars)
            ? castSlice(stringToArray(result), 0, length).join('')
            : result.slice(0, length);
        }
    
        /**
         * Creates a function that wraps `func` to invoke it with the `this` binding
         * of `thisArg` and `partials` prepended to the arguments it receives.
         *
         * @private
         * @param {Function} func The function to wrap.
         * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
         * @param {*} thisArg The `this` binding of `func`.
         * @param {Array} partials The arguments to prepend to those provided to
         *  the new function.
         * @returns {Function} Returns the new wrapped function.
         */
        function createPartial(func, bitmask, thisArg, partials) {
          var isBind = bitmask & WRAP_BIND_FLAG,
              Ctor = createCtor(func);
    
          function wrapper() {
            var argsIndex = -1,
                argsLength = arguments.length,
                leftIndex = -1,
                leftLength = partials.length,
                args = Array(leftLength + argsLength),
                fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;
    
            while (++leftIndex < leftLength) {
              args[leftIndex] = partials[leftIndex];
            }
            while (argsLength--) {
              args[leftIndex++] = arguments[++argsIndex];
            }
            return apply(fn, isBind ? thisArg : this, args);
          }
          return wrapper;
        }
    
        /**
         * Creates a `_.range` or `_.rangeRight` function.
         *
         * @private
         * @param {boolean} [fromRight] Specify iterating from right to left.
         * @returns {Function} Returns the new range function.
         */
        function createRange(fromRight) {
          return function(start, end, step) {
            if (step && typeof step != 'number' && isIterateeCall(start, end, step)) {
              end = step = undefined;
            }
            // Ensure the sign of `-0` is preserved.
            start = toFinite(start);
            if (end === undefined) {
              end = start;
              start = 0;
            } else {
              end = toFinite(end);
            }
            step = step === undefined ? (start < end ? 1 : -1) : toFinite(step);
            return baseRange(start, end, step, fromRight);
          };
        }
    
        /**
         * Creates a function that performs a relational operation on two values.
         *
         * @private
         * @param {Function} operator The function to perform the operation.
         * @returns {Function} Returns the new relational operation function.
         */
        function createRelationalOperation(operator) {
          return function(value, other) {
            if (!(typeof value == 'string' && typeof other == 'string')) {
              value = toNumber(value);
              other = toNumber(other);
            }
            return operator(value, other);
          };
        }
    
        /**
         * Creates a function that wraps `func` to continue currying.
         *
         * @private
         * @param {Function} func The function to wrap.
         * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
         * @param {Function} wrapFunc The function to create the `func` wrapper.
         * @param {*} placeholder The placeholder value.
         * @param {*} [thisArg] The `this` binding of `func`.
         * @param {Array} [partials] The arguments to prepend to those provided to
         *  the new function.
         * @param {Array} [holders] The `partials` placeholder indexes.
         * @param {Array} [argPos] The argument positions of the new function.
         * @param {number} [ary] The arity cap of `func`.
         * @param {number} [arity] The arity of `func`.
         * @returns {Function} Returns the new wrapped function.
         */
        function createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) {
          var isCurry = bitmask & WRAP_CURRY_FLAG,
              newHolders = isCurry ? holders : undefined,
              newHoldersRight = isCurry ? undefined : holders,
              newPartials = isCurry ? partials : undefined,
              newPartialsRight = isCurry ? undefined : partials;
    
          bitmask |= (isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG);
          bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG);
    
          if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) {
            bitmask &= ~(WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG);
          }
          var newData = [
            func, bitmask, thisArg, newPartials, newHolders, newPartialsRight,
            newHoldersRight, argPos, ary, arity
          ];
    
          var result = wrapFunc.apply(undefined, newData);
          if (isLaziable(func)) {
            setData(result, newData);
          }
          result.placeholder = placeholder;
          return setWrapToString(result, func, bitmask);
        }
    
        /**
         * Creates a function like `_.round`.
         *
         * @private
         * @param {string} methodName The name of the `Math` method to use when rounding.
         * @returns {Function} Returns the new round function.
         */
        function createRound(methodName) {
          var func = Math[methodName];
          return function(number, precision) {
            number = toNumber(number);
            precision = precision == null ? 0 : nativeMin(toInteger(precision), 292);
            if (precision && nativeIsFinite(number)) {
              // Shift with exponential notation to avoid floating-point issues.
              // See [MDN](https://mdn.io/round#Examples) for more details.
              var pair = (toString(number) + 'e').split('e'),
                  value = func(pair[0] + 'e' + (+pair[1] + precision));
    
              pair = (toString(value) + 'e').split('e');
              return +(pair[0] + 'e' + (+pair[1] - precision));
            }
            return func(number);
          };
        }
    
        /**
         * Creates a set object of `values`.
         *
         * @private
         * @param {Array} values The values to add to the set.
         * @returns {Object} Returns the new set.
         */
        var createSet = !(Set && (1 / setToArray(new Set([,-0]))[1]) == INFINITY) ? noop : function(values) {
          return new Set(values);
        };
    
        /**
         * Creates a `_.toPairs` or `_.toPairsIn` function.
         *
         * @private
         * @param {Function} keysFunc The function to get the keys of a given object.
         * @returns {Function} Returns the new pairs function.
         */
        function createToPairs(keysFunc) {
          return function(object) {
            var tag = getTag(object);
            if (tag == mapTag) {
              return mapToArray(object);
            }
            if (tag == setTag) {
              return setToPairs(object);
            }
            return baseToPairs(object, keysFunc(object));
          };
        }
    
        /**
         * Creates a function that either curries or invokes `func` with optional
         * `this` binding and partially applied arguments.
         *
         * @private
         * @param {Function|string} func The function or method name to wrap.
         * @param {number} bitmask The bitmask flags.
         *    1 - `_.bind`
         *    2 - `_.bindKey`
         *    4 - `_.curry` or `_.curryRight` of a bound function
         *    8 - `_.curry`
         *   16 - `_.curryRight`
         *   32 - `_.partial`
         *   64 - `_.partialRight`
         *  128 - `_.rearg`
         *  256 - `_.ary`
         *  512 - `_.flip`
         * @param {*} [thisArg] The `this` binding of `func`.
         * @param {Array} [partials] The arguments to be partially applied.
         * @param {Array} [holders] The `partials` placeholder indexes.
         * @param {Array} [argPos] The argument positions of the new function.
         * @param {number} [ary] The arity cap of `func`.
         * @param {number} [arity] The arity of `func`.
         * @returns {Function} Returns the new wrapped function.
         */
        function createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) {
          var isBindKey = bitmask & WRAP_BIND_KEY_FLAG;
          if (!isBindKey && typeof func != 'function') {
            throw new TypeError(FUNC_ERROR_TEXT);
          }
          var length = partials ? partials.length : 0;
          if (!length) {
            bitmask &= ~(WRAP_PARTIAL_FLAG | WRAP_PARTIAL_RIGHT_FLAG);
            partials = holders = undefined;
          }
          ary = ary === undefined ? ary : nativeMax(toInteger(ary), 0);
          arity = arity === undefined ? arity : toInteger(arity);
          length -= holders ? holders.length : 0;
    
          if (bitmask & WRAP_PARTIAL_RIGHT_FLAG) {
            var partialsRight = partials,
                holdersRight = holders;
    
            partials = holders = undefined;
          }
          var data = isBindKey ? undefined : getData(func);
    
          var newData = [
            func, bitmask, thisArg, partials, holders, partialsRight, holdersRight,
            argPos, ary, arity
          ];
    
          if (data) {
            mergeData(newData, data);
          }
          func = newData[0];
          bitmask = newData[1];
          thisArg = newData[2];
          partials = newData[3];
          holders = newData[4];
          arity = newData[9] = newData[9] === undefined
            ? (isBindKey ? 0 : func.length)
            : nativeMax(newData[9] - length, 0);
    
          if (!arity && bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG)) {
            bitmask &= ~(WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG);
          }
          if (!bitmask || bitmask == WRAP_BIND_FLAG) {
            var result = createBind(func, bitmask, thisArg);
          } else if (bitmask == WRAP_CURRY_FLAG || bitmask == WRAP_CURRY_RIGHT_FLAG) {
            result = createCurry(func, bitmask, arity);
          } else if ((bitmask == WRAP_PARTIAL_FLAG || bitmask == (WRAP_BIND_FLAG | WRAP_PARTIAL_FLAG)) && !holders.length) {
            result = createPartial(func, bitmask, thisArg, partials);
          } else {
            result = createHybrid.apply(undefined, newData);
          }
          var setter = data ? baseSetData : setData;
          return setWrapToString(setter(result, newData), func, bitmask);
        }
    
        /**
         * Used by `_.defaults` to customize its `_.assignIn` use to assign properties
         * of source objects to the destination object for all destination properties
         * that resolve to `undefined`.
         *
         * @private
         * @param {*} objValue The destination value.
         * @param {*} srcValue The source value.
         * @param {string} key The key of the property to assign.
         * @param {Object} object The parent object of `objValue`.
         * @returns {*} Returns the value to assign.
         */
        function customDefaultsAssignIn(objValue, srcValue, key, object) {
          if (objValue === undefined ||
              (eq(objValue, objectProto[key]) && !hasOwnProperty.call(object, key))) {
            return srcValue;
          }
          return objValue;
        }
    
        /**
         * Used by `_.defaultsDeep` to customize its `_.merge` use to merge source
         * objects into destination objects that are passed thru.
         *
         * @private
         * @param {*} objValue The destination value.
         * @param {*} srcValue The source value.
         * @param {string} key The key of the property to merge.
         * @param {Object} object The parent object of `objValue`.
         * @param {Object} source The parent object of `srcValue`.
         * @param {Object} [stack] Tracks traversed source values and their merged
         *  counterparts.
         * @returns {*} Returns the value to assign.
         */
        function customDefaultsMerge(objValue, srcValue, key, object, source, stack) {
          if (isObject(objValue) && isObject(srcValue)) {
            // Recursively merge objects and arrays (susceptible to call stack limits).
            stack.set(srcValue, objValue);
            baseMerge(objValue, srcValue, undefined, customDefaultsMerge, stack);
            stack['delete'](srcValue);
          }
          return objValue;
        }
    
        /**
         * Used by `_.omit` to customize its `_.cloneDeep` use to only clone plain
         * objects.
         *
         * @private
         * @param {*} value The value to inspect.
         * @param {string} key The key of the property to inspect.
         * @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`.
         */
        function customOmitClone(value) {
          return isPlainObject(value) ? undefined : value;
        }
    
        /**
         * A specialized version of `baseIsEqualDeep` for arrays with support for
         * partial deep comparisons.
         *
         * @private
         * @param {Array} array The array to compare.
         * @param {Array} other The other array to compare.
         * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
         * @param {Function} customizer The function to customize comparisons.
         * @param {Function} equalFunc The function to determine equivalents of values.
         * @param {Object} stack Tracks traversed `array` and `other` objects.
         * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`.
         */
        function equalArrays(array, other, bitmask, customizer, equalFunc, stack) {
          var isPartial = bitmask & COMPARE_PARTIAL_FLAG,
              arrLength = array.length,
              othLength = other.length;
    
          if (arrLength != othLength && !(isPartial && othLength > arrLength)) {
            return false;
          }
          // Assume cyclic values are equal.
          var stacked = stack.get(array);
          if (stacked && stack.get(other)) {
            return stacked == other;
          }
          var index = -1,
              result = true,
              seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined;
    
          stack.set(array, other);
          stack.set(other, array);
    
          // Ignore non-index properties.
          while (++index < arrLength) {
            var arrValue = array[index],
                othValue = other[index];
    
            if (customizer) {
              var compared = isPartial
                ? customizer(othValue, arrValue, index, other, array, stack)
                : customizer(arrValue, othValue, index, array, other, stack);
            }
            if (compared !== undefined) {
              if (compared) {
                continue;
              }
              result = false;
              break;
            }
            // Recursively compare arrays (susceptible to call stack limits).
            if (seen) {
              if (!arraySome(other, function(othValue, othIndex) {
                    if (!cacheHas(seen, othIndex) &&
                        (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) {
                      return seen.push(othIndex);
                    }
                  })) {
                result = false;
                break;
              }
            } else if (!(
                  arrValue === othValue ||
                    equalFunc(arrValue, othValue, bitmask, customizer, stack)
                )) {
              result = false;
              break;
            }
          }
          stack['delete'](array);
          stack['delete'](other);
          return result;
        }
    
        /**
         * A specialized version of `baseIsEqualDeep` for comparing objects of
         * the same `toStringTag`.
         *
         * **Note:** This function only supports comparing values with tags of
         * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.
         *
         * @private
         * @param {Object} object The object to compare.
         * @param {Object} other The other object to compare.
         * @param {string} tag The `toStringTag` of the objects to compare.
         * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
         * @param {Function} customizer The function to customize comparisons.
         * @param {Function} equalFunc The function to determine equivalents of values.
         * @param {Object} stack Tracks traversed `object` and `other` objects.
         * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
         */
        function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) {
          switch (tag) {
            case dataViewTag:
              if ((object.byteLength != other.byteLength) ||
                  (object.byteOffset != other.byteOffset)) {
                return false;
              }
              object = object.buffer;
              other = other.buffer;
    
            case arrayBufferTag:
              if ((object.byteLength != other.byteLength) ||
                  !equalFunc(new Uint8Array(object), new Uint8Array(other))) {
                return false;
              }
              return true;
    
            case boolTag:
            case dateTag:
            case numberTag:
              // Coerce booleans to `1` or `0` and dates to milliseconds.
              // Invalid dates are coerced to `NaN`.
              return eq(+object, +other);
    
            case errorTag:
              return object.name == other.name && object.message == other.message;
    
            case regexpTag:
            case stringTag:
              // Coerce regexes to strings and treat strings, primitives and objects,
              // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring
              // for more details.
              return object == (other + '');
    
            case mapTag:
              var convert = mapToArray;
    
            case setTag:
              var isPartial = bitmask & COMPARE_PARTIAL_FLAG;
              convert || (convert = setToArray);
    
              if (object.size != other.size && !isPartial) {
                return false;
              }
              // Assume cyclic values are equal.
              var stacked = stack.get(object);
              if (stacked) {
                return stacked == other;
              }
              bitmask |= COMPARE_UNORDERED_FLAG;
    
              // Recursively compare objects (susceptible to call stack limits).
              stack.set(object, other);
              var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack);
              stack['delete'](object);
              return result;
    
            case symbolTag:
              if (symbolValueOf) {
                return symbolValueOf.call(object) == symbolValueOf.call(other);
              }
          }
          return false;
        }
    
        /**
         * A specialized version of `baseIsEqualDeep` for objects with support for
         * partial deep comparisons.
         *
         * @private
         * @param {Object} object The object to compare.
         * @param {Object} other The other object to compare.
         * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
         * @param {Function} customizer The function to customize comparisons.
         * @param {Function} equalFunc The function to determine equivalents of values.
         * @param {Object} stack Tracks traversed `object` and `other` objects.
         * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
         */
        function equalObjects(object, other, bitmask, customizer, equalFunc, stack) {
          var isPartial = bitmask & COMPARE_PARTIAL_FLAG,
              objProps = getAllKeys(object),
              objLength = objProps.length,
              othProps = getAllKeys(other),
              othLength = othProps.length;
    
          if (objLength != othLength && !isPartial) {
            return false;
          }
          var index = objLength;
          while (index--) {
            var key = objProps[index];
            if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) {
              return false;
            }
          }
          // Assume cyclic values are equal.
          var stacked = stack.get(object);
          if (stacked && stack.get(other)) {
            return stacked == other;
          }
          var result = true;
          stack.set(object, other);
          stack.set(other, object);
    
          var skipCtor = isPartial;
          while (++index < objLength) {
            key = objProps[index];
            var objValue = object[key],
                othValue = other[key];
    
            if (customizer) {
              var compared = isPartial
                ? customizer(othValue, objValue, key, other, object, stack)
                : customizer(objValue, othValue, key, object, other, stack);
            }
            // Recursively compare objects (susceptible to call stack limits).
            if (!(compared === undefined
                  ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack))
                  : compared
                )) {
              result = false;
              break;
            }
            skipCtor || (skipCtor = key == 'constructor');
          }
          if (result && !skipCtor) {
            var objCtor = object.constructor,
                othCtor = other.constructor;
    
            // Non `Object` object instances with different constructors are not equal.
            if (objCtor != othCtor &&
                ('constructor' in object && 'constructor' in other) &&
                !(typeof objCtor == 'function' && objCtor instanceof objCtor &&
                  typeof othCtor == 'function' && othCtor instanceof othCtor)) {
              result = false;
            }
          }
          stack['delete'](object);
          stack['delete'](other);
          return result;
        }
    
        /**
         * A specialized version of `baseRest` which flattens the rest array.
         *
         * @private
         * @param {Function} func The function to apply a rest parameter to.
         * @returns {Function} Returns the new function.
         */
        function flatRest(func) {
          return setToString(overRest(func, undefined, flatten), func + '');
        }
    
        /**
         * Creates an array of own enumerable property names and symbols of `object`.
         *
         * @private
         * @param {Object} object The object to query.
         * @returns {Array} Returns the array of property names and symbols.
         */
        function getAllKeys(object) {
          return baseGetAllKeys(object, keys, getSymbols);
        }
    
        /**
         * Creates an array of own and inherited enumerable property names and
         * symbols of `object`.
         *
         * @private
         * @param {Object} object The object to query.
         * @returns {Array} Returns the array of property names and symbols.
         */
        function getAllKeysIn(object) {
          return baseGetAllKeys(object, keysIn, getSymbolsIn);
        }
    
        /**
         * Gets metadata for `func`.
         *
         * @private
         * @param {Function} func The function to query.
         * @returns {*} Returns the metadata for `func`.
         */
        var getData = !metaMap ? noop : function(func) {
          return metaMap.get(func);
        };
    
        /**
         * Gets the name of `func`.
         *
         * @private
         * @param {Function} func The function to query.
         * @returns {string} Returns the function name.
         */
        function getFuncName(func) {
          var result = (func.name + ''),
              array = realNames[result],
              length = hasOwnProperty.call(realNames, result) ? array.length : 0;
    
          while (length--) {
            var data = array[length],
                otherFunc = data.func;
            if (otherFunc == null || otherFunc == func) {
              return data.name;
            }
          }
          return result;
        }
    
        /**
         * Gets the argument placeholder value for `func`.
         *
         * @private
         * @param {Function} func The function to inspect.
         * @returns {*} Returns the placeholder value.
         */
        function getHolder(func) {
          var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func;
          return object.placeholder;
        }
    
        /**
         * Gets the appropriate "iteratee" function. If `_.iteratee` is customized,
         * this function returns the custom method, otherwise it returns `baseIteratee`.
         * If arguments are provided, the chosen function is invoked with them and
         * its result is returned.
         *
         * @private
         * @param {*} [value] The value to convert to an iteratee.
         * @param {number} [arity] The arity of the created iteratee.
         * @returns {Function} Returns the chosen function or its result.
         */
        function getIteratee() {
          var result = lodash.iteratee || iteratee;
          result = result === iteratee ? baseIteratee : result;
          return arguments.length ? result(arguments[0], arguments[1]) : result;
        }
    
        /**
         * Gets the data for `map`.
         *
         * @private
         * @param {Object} map The map to query.
         * @param {string} key The reference key.
         * @returns {*} Returns the map data.
         */
        function getMapData(map, key) {
          var data = map.__data__;
          return isKeyable(key)
            ? data[typeof key == 'string' ? 'string' : 'hash']
            : data.map;
        }
    
        /**
         * Gets the property names, values, and compare flags of `object`.
         *
         * @private
         * @param {Object} object The object to query.
         * @returns {Array} Returns the match data of `object`.
         */
        function getMatchData(object) {
          var result = keys(object),
              length = result.length;
    
          while (length--) {
            var key = result[length],
                value = object[key];
    
            result[length] = [key, value, isStrictComparable(value)];
          }
          return result;
        }
    
        /**
         * Gets the native function at `key` of `object`.
         *
         * @private
         * @param {Object} object The object to query.
         * @param {string} key The key of the method to get.
         * @returns {*} Returns the function if it's native, else `undefined`.
         */
        function getNative(object, key) {
          var value = getValue(object, key);
          return baseIsNative(value) ? value : undefined;
        }
    
        /**
         * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values.
         *
         * @private
         * @param {*} value The value to query.
         * @returns {string} Returns the raw `toStringTag`.
         */
        function getRawTag(value) {
          var isOwn = hasOwnProperty.call(value, symToStringTag),
              tag = value[symToStringTag];
    
          try {
            value[symToStringTag] = undefined;
            var unmasked = true;
          } catch (e) {}
    
          var result = nativeObjectToString.call(value);
          if (unmasked) {
            if (isOwn) {
              value[symToStringTag] = tag;
            } else {
              delete value[symToStringTag];
            }
          }
          return result;
        }
    
        /**
         * Creates an array of the own enumerable symbols of `object`.
         *
         * @private
         * @param {Object} object The object to query.
         * @returns {Array} Returns the array of symbols.
         */
        var getSymbols = !nativeGetSymbols ? stubArray : function(object) {
          if (object == null) {
            return [];
          }
          object = Object(object);
          return arrayFilter(nativeGetSymbols(object), function(symbol) {
            return propertyIsEnumerable.call(object, symbol);
          });
        };
    
        /**
         * Creates an array of the own and inherited enumerable symbols of `object`.
         *
         * @private
         * @param {Object} object The object to query.
         * @returns {Array} Returns the array of symbols.
         */
        var getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) {
          var result = [];
          while (object) {
            arrayPush(result, getSymbols(object));
            object = getPrototype(object);
          }
          return result;
        };
    
        /**
         * Gets the `toStringTag` of `value`.
         *
         * @private
         * @param {*} value The value to query.
         * @returns {string} Returns the `toStringTag`.
         */
        var getTag = baseGetTag;
    
        // Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6.
        if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||
            (Map && getTag(new Map) != mapTag) ||
            (Promise && getTag(Promise.resolve()) != promiseTag) ||
            (Set && getTag(new Set) != setTag) ||
            (WeakMap && getTag(new WeakMap) != weakMapTag)) {
          getTag = function(value) {
            var result = baseGetTag(value),
                Ctor = result == objectTag ? value.constructor : undefined,
                ctorString = Ctor ? toSource(Ctor) : '';
    
            if (ctorString) {
              switch (ctorString) {
                case dataViewCtorString: return dataViewTag;
                case mapCtorString: return mapTag;
                case promiseCtorString: return promiseTag;
                case setCtorString: return setTag;
                case weakMapCtorString: return weakMapTag;
              }
            }
            return result;
          };
        }
    
        /**
         * Gets the view, applying any `transforms` to the `start` and `end` positions.
         *
         * @private
         * @param {number} start The start of the view.
         * @param {number} end The end of the view.
         * @param {Array} transforms The transformations to apply to the view.
         * @returns {Object} Returns an object containing the `start` and `end`
         *  positions of the view.
         */
        function getView(start, end, transforms) {
          var index = -1,
              length = transforms.length;
    
          while (++index < length) {
            var data = transforms[index],
                size = data.size;
    
            switch (data.type) {
              case 'drop':      start += size; break;
              case 'dropRight': end -= size; break;
              case 'take':      end = nativeMin(end, start + size); break;
              case 'takeRight': start = nativeMax(start, end - size); break;
            }
          }
          return { 'start': start, 'end': end };
        }
    
        /**
         * Extracts wrapper details from the `source` body comment.
         *
         * @private
         * @param {string} source The source to inspect.
         * @returns {Array} Returns the wrapper details.
         */
        function getWrapDetails(source) {
          var match = source.match(reWrapDetails);
          return match ? match[1].split(reSplitDetails) : [];
        }
    
        /**
         * Checks if `path` exists on `object`.
         *
         * @private
         * @param {Object} object The object to query.
         * @param {Array|string} path The path to check.
         * @param {Function} hasFunc The function to check properties.
         * @returns {boolean} Returns `true` if `path` exists, else `false`.
         */
        function hasPath(object, path, hasFunc) {
          path = castPath(path, object);
    
          var index = -1,
              length = path.length,
              result = false;
    
          while (++index < length) {
            var key = toKey(path[index]);
            if (!(result = object != null && hasFunc(object, key))) {
              break;
            }
            object = object[key];
          }
          if (result || ++index != length) {
            return result;
          }
          length = object == null ? 0 : object.length;
          return !!length && isLength(length) && isIndex(key, length) &&
            (isArray(object) || isArguments(object));
        }
    
        /**
         * Initializes an array clone.
         *
         * @private
         * @param {Array} array The array to clone.
         * @returns {Array} Returns the initialized clone.
         */
        function initCloneArray(array) {
          var length = array.length,
              result = new array.constructor(length);
    
          // Add properties assigned by `RegExp#exec`.
          if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) {
            result.index = array.index;
            result.input = array.input;
          }
          return result;
        }
    
        /**
         * Initializes an object clone.
         *
         * @private
         * @param {Object} object The object to clone.
         * @returns {Object} Returns the initialized clone.
         */
        function initCloneObject(object) {
          return (typeof object.constructor == 'function' && !isPrototype(object))
            ? baseCreate(getPrototype(object))
            : {};
        }
    
        /**
         * Initializes an object clone based on its `toStringTag`.
         *
         * **Note:** This function only supports cloning values with tags of
         * `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`.
         *
         * @private
         * @param {Object} object The object to clone.
         * @param {string} tag The `toStringTag` of the object to clone.
         * @param {boolean} [isDeep] Specify a deep clone.
         * @returns {Object} Returns the initialized clone.
         */
        function initCloneByTag(object, tag, isDeep) {
          var Ctor = object.constructor;
          switch (tag) {
            case arrayBufferTag:
              return cloneArrayBuffer(object);
    
            case boolTag:
            case dateTag:
              return new Ctor(+object);
    
            case dataViewTag:
              return cloneDataView(object, isDeep);
    
            case float32Tag: case float64Tag:
            case int8Tag: case int16Tag: case int32Tag:
            case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag:
              return cloneTypedArray(object, isDeep);
    
            case mapTag:
              return new Ctor;
    
            case numberTag:
            case stringTag:
              return new Ctor(object);
    
            case regexpTag:
              return cloneRegExp(object);
    
            case setTag:
              return new Ctor;
    
            case symbolTag:
              return cloneSymbol(object);
          }
        }
    
        /**
         * Inserts wrapper `details` in a comment at the top of the `source` body.
         *
         * @private
         * @param {string} source The source to modify.
         * @returns {Array} details The details to insert.
         * @returns {string} Returns the modified source.
         */
        function insertWrapDetails(source, details) {
          var length = details.length;
          if (!length) {
            return source;
          }
          var lastIndex = length - 1;
          details[lastIndex] = (length > 1 ? '& ' : '') + details[lastIndex];
          details = details.join(length > 2 ? ', ' : ' ');
          return source.replace(reWrapComment, '{\n/* [wrapped with ' + details + '] */\n');
        }
    
        /**
         * Checks if `value` is a flattenable `arguments` object or array.
         *
         * @private
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is flattenable, else `false`.
         */
        function isFlattenable(value) {
          return isArray(value) || isArguments(value) ||
            !!(spreadableSymbol && value && value[spreadableSymbol]);
        }
    
        /**
         * Checks if `value` is a valid array-like index.
         *
         * @private
         * @param {*} value The value to check.
         * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.
         * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.
         */
        function isIndex(value, length) {
          var type = typeof value;
          length = length == null ? MAX_SAFE_INTEGER : length;
    
          return !!length &&
            (type == 'number' ||
              (type != 'symbol' && reIsUint.test(value))) &&
                (value > -1 && value % 1 == 0 && value < length);
        }
    
        /**
         * Checks if the given arguments are from an iteratee call.
         *
         * @private
         * @param {*} value The potential iteratee value argument.
         * @param {*} index The potential iteratee index or key argument.
         * @param {*} object The potential iteratee object argument.
         * @returns {boolean} Returns `true` if the arguments are from an iteratee call,
         *  else `false`.
         */
        function isIterateeCall(value, index, object) {
          if (!isObject(object)) {
            return false;
          }
          var type = typeof index;
          if (type == 'number'
                ? (isArrayLike(object) && isIndex(index, object.length))
                : (type == 'string' && index in object)
              ) {
            return eq(object[index], value);
          }
          return false;
        }
    
        /**
         * Checks if `value` is a property name and not a property path.
         *
         * @private
         * @param {*} value The value to check.
         * @param {Object} [object] The object to query keys on.
         * @returns {boolean} Returns `true` if `value` is a property name, else `false`.
         */
        function isKey(value, object) {
          if (isArray(value)) {
            return false;
          }
          var type = typeof value;
          if (type == 'number' || type == 'symbol' || type == 'boolean' ||
              value == null || isSymbol(value)) {
            return true;
          }
          return reIsPlainProp.test(value) || !reIsDeepProp.test(value) ||
            (object != null && value in Object(object));
        }
    
        /**
         * Checks if `value` is suitable for use as unique object key.
         *
         * @private
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is suitable, else `false`.
         */
        function isKeyable(value) {
          var type = typeof value;
          return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean')
            ? (value !== '__proto__')
            : (value === null);
        }
    
        /**
         * Checks if `func` has a lazy counterpart.
         *
         * @private
         * @param {Function} func The function to check.
         * @returns {boolean} Returns `true` if `func` has a lazy counterpart,
         *  else `false`.
         */
        function isLaziable(func) {
          var funcName = getFuncName(func),
              other = lodash[funcName];
    
          if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) {
            return false;
          }
          if (func === other) {
            return true;
          }
          var data = getData(other);
          return !!data && func === data[0];
        }
    
        /**
         * Checks if `func` has its source masked.
         *
         * @private
         * @param {Function} func The function to check.
         * @returns {boolean} Returns `true` if `func` is masked, else `false`.
         */
        function isMasked(func) {
          return !!maskSrcKey && (maskSrcKey in func);
        }
    
        /**
         * Checks if `func` is capable of being masked.
         *
         * @private
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `func` is maskable, else `false`.
         */
        var isMaskable = coreJsData ? isFunction : stubFalse;
    
        /**
         * Checks if `value` is likely a prototype object.
         *
         * @private
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a prototype, else `false`.
         */
        function isPrototype(value) {
          var Ctor = value && value.constructor,
              proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto;
    
          return value === proto;
        }
    
        /**
         * Checks if `value` is suitable for strict equality comparisons, i.e. `===`.
         *
         * @private
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` if suitable for strict
         *  equality comparisons, else `false`.
         */
        function isStrictComparable(value) {
          return value === value && !isObject(value);
        }
    
        /**
         * A specialized version of `matchesProperty` for source values suitable
         * for strict equality comparisons, i.e. `===`.
         *
         * @private
         * @param {string} key The key of the property to get.
         * @param {*} srcValue The value to match.
         * @returns {Function} Returns the new spec function.
         */
        function matchesStrictComparable(key, srcValue) {
          return function(object) {
            if (object == null) {
              return false;
            }
            return object[key] === srcValue &&
              (srcValue !== undefined || (key in Object(object)));
          };
        }
    
        /**
         * A specialized version of `_.memoize` which clears the memoized function's
         * cache when it exceeds `MAX_MEMOIZE_SIZE`.
         *
         * @private
         * @param {Function} func The function to have its output memoized.
         * @returns {Function} Returns the new memoized function.
         */
        function memoizeCapped(func) {
          var result = memoize(func, function(key) {
            if (cache.size === MAX_MEMOIZE_SIZE) {
              cache.clear();
            }
            return key;
          });
    
          var cache = result.cache;
          return result;
        }
    
        /**
         * Merges the function metadata of `source` into `data`.
         *
         * Merging metadata reduces the number of wrappers used to invoke a function.
         * This is possible because methods like `_.bind`, `_.curry`, and `_.partial`
         * may be applied regardless of execution order. Methods like `_.ary` and
         * `_.rearg` modify function arguments, making the order in which they are
         * executed important, preventing the merging of metadata. However, we make
         * an exception for a safe combined case where curried functions have `_.ary`
         * and or `_.rearg` applied.
         *
         * @private
         * @param {Array} data The destination metadata.
         * @param {Array} source The source metadata.
         * @returns {Array} Returns `data`.
         */
        function mergeData(data, source) {
          var bitmask = data[1],
              srcBitmask = source[1],
              newBitmask = bitmask | srcBitmask,
              isCommon = newBitmask < (WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG | WRAP_ARY_FLAG);
    
          var isCombo =
            ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_CURRY_FLAG)) ||
            ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_REARG_FLAG) && (data[7].length <= source[8])) ||
            ((srcBitmask == (WRAP_ARY_FLAG | WRAP_REARG_FLAG)) && (source[7].length <= source[8]) && (bitmask == WRAP_CURRY_FLAG));
    
          // Exit early if metadata can't be merged.
          if (!(isCommon || isCombo)) {
            return data;
          }
          // Use source `thisArg` if available.
          if (srcBitmask & WRAP_BIND_FLAG) {
            data[2] = source[2];
            // Set when currying a bound function.
            newBitmask |= bitmask & WRAP_BIND_FLAG ? 0 : WRAP_CURRY_BOUND_FLAG;
          }
          // Compose partial arguments.
          var value = source[3];
          if (value) {
            var partials = data[3];
            data[3] = partials ? composeArgs(partials, value, source[4]) : value;
            data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4];
          }
          // Compose partial right arguments.
          value = source[5];
          if (value) {
            partials = data[5];
            data[5] = partials ? composeArgsRight(partials, value, source[6]) : value;
            data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6];
          }
          // Use source `argPos` if available.
          value = source[7];
          if (value) {
            data[7] = value;
          }
          // Use source `ary` if it's smaller.
          if (srcBitmask & WRAP_ARY_FLAG) {
            data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]);
          }
          // Use source `arity` if one is not provided.
          if (data[9] == null) {
            data[9] = source[9];
          }
          // Use source `func` and merge bitmasks.
          data[0] = source[0];
          data[1] = newBitmask;
    
          return data;
        }
    
        /**
         * This function is like
         * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)
         * except that it includes inherited enumerable properties.
         *
         * @private
         * @param {Object} object The object to query.
         * @returns {Array} Returns the array of property names.
         */
        function nativeKeysIn(object) {
          var result = [];
          if (object != null) {
            for (var key in Object(object)) {
              result.push(key);
            }
          }
          return result;
        }
    
        /**
         * Converts `value` to a string using `Object.prototype.toString`.
         *
         * @private
         * @param {*} value The value to convert.
         * @returns {string} Returns the converted string.
         */
        function objectToString(value) {
          return nativeObjectToString.call(value);
        }
    
        /**
         * A specialized version of `baseRest` which transforms the rest array.
         *
         * @private
         * @param {Function} func The function to apply a rest parameter to.
         * @param {number} [start=func.length-1] The start position of the rest parameter.
         * @param {Function} transform The rest array transform.
         * @returns {Function} Returns the new function.
         */
        function overRest(func, start, transform) {
          start = nativeMax(start === undefined ? (func.length - 1) : start, 0);
          return function() {
            var args = arguments,
                index = -1,
                length = nativeMax(args.length - start, 0),
                array = Array(length);
    
            while (++index < length) {
              array[index] = args[start + index];
            }
            index = -1;
            var otherArgs = Array(start + 1);
            while (++index < start) {
              otherArgs[index] = args[index];
            }
            otherArgs[start] = transform(array);
            return apply(func, this, otherArgs);
          };
        }
    
        /**
         * Gets the parent value at `path` of `object`.
         *
         * @private
         * @param {Object} object The object to query.
         * @param {Array} path The path to get the parent value of.
         * @returns {*} Returns the parent value.
         */
        function parent(object, path) {
          return path.length < 2 ? object : baseGet(object, baseSlice(path, 0, -1));
        }
    
        /**
         * Reorder `array` according to the specified indexes where the element at
         * the first index is assigned as the first element, the element at
         * the second index is assigned as the second element, and so on.
         *
         * @private
         * @param {Array} array The array to reorder.
         * @param {Array} indexes The arranged array indexes.
         * @returns {Array} Returns `array`.
         */
        function reorder(array, indexes) {
          var arrLength = array.length,
              length = nativeMin(indexes.length, arrLength),
              oldArray = copyArray(array);
    
          while (length--) {
            var index = indexes[length];
            array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined;
          }
          return array;
        }
    
        /**
         * Gets the value at `key`, unless `key` is "__proto__" or "constructor".
         *
         * @private
         * @param {Object} object The object to query.
         * @param {string} key The key of the property to get.
         * @returns {*} Returns the property value.
         */
        function safeGet(object, key) {
          if (key === 'constructor' && typeof object[key] === 'function') {
            return;
          }
    
          if (key == '__proto__') {
            return;
          }
    
          return object[key];
        }
    
        /**
         * Sets metadata for `func`.
         *
         * **Note:** If this function becomes hot, i.e. is invoked a lot in a short
         * period of time, it will trip its breaker and transition to an identity
         * function to avoid garbage collection pauses in V8. See
         * [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070)
         * for more details.
         *
         * @private
         * @param {Function} func The function to associate metadata with.
         * @param {*} data The metadata.
         * @returns {Function} Returns `func`.
         */
        var setData = shortOut(baseSetData);
    
        /**
         * A simple wrapper around the global [`setTimeout`](https://mdn.io/setTimeout).
         *
         * @private
         * @param {Function} func The function to delay.
         * @param {number} wait The number of milliseconds to delay invocation.
         * @returns {number|Object} Returns the timer id or timeout object.
         */
        var setTimeout = ctxSetTimeout || function(func, wait) {
          return root.setTimeout(func, wait);
        };
    
        /**
         * Sets the `toString` method of `func` to return `string`.
         *
         * @private
         * @param {Function} func The function to modify.
         * @param {Function} string The `toString` result.
         * @returns {Function} Returns `func`.
         */
        var setToString = shortOut(baseSetToString);
    
        /**
         * Sets the `toString` method of `wrapper` to mimic the source of `reference`
         * with wrapper details in a comment at the top of the source body.
         *
         * @private
         * @param {Function} wrapper The function to modify.
         * @param {Function} reference The reference function.
         * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
         * @returns {Function} Returns `wrapper`.
         */
        function setWrapToString(wrapper, reference, bitmask) {
          var source = (reference + '');
          return setToString(wrapper, insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask)));
        }
    
        /**
         * Creates a function that'll short out and invoke `identity` instead
         * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN`
         * milliseconds.
         *
         * @private
         * @param {Function} func The function to restrict.
         * @returns {Function} Returns the new shortable function.
         */
        function shortOut(func) {
          var count = 0,
              lastCalled = 0;
    
          return function() {
            var stamp = nativeNow(),
                remaining = HOT_SPAN - (stamp - lastCalled);
    
            lastCalled = stamp;
            if (remaining > 0) {
              if (++count >= HOT_COUNT) {
                return arguments[0];
              }
            } else {
              count = 0;
            }
            return func.apply(undefined, arguments);
          };
        }
    
        /**
         * A specialized version of `_.shuffle` which mutates and sets the size of `array`.
         *
         * @private
         * @param {Array} array The array to shuffle.
         * @param {number} [size=array.length] The size of `array`.
         * @returns {Array} Returns `array`.
         */
        function shuffleSelf(array, size) {
          var index = -1,
              length = array.length,
              lastIndex = length - 1;
    
          size = size === undefined ? length : size;
          while (++index < size) {
            var rand = baseRandom(index, lastIndex),
                value = array[rand];
    
            array[rand] = array[index];
            array[index] = value;
          }
          array.length = size;
          return array;
        }
    
        /**
         * Converts `string` to a property path array.
         *
         * @private
         * @param {string} string The string to convert.
         * @returns {Array} Returns the property path array.
         */
        var stringToPath = memoizeCapped(function(string) {
          var result = [];
          if (string.charCodeAt(0) === 46 /* . */) {
            result.push('');
          }
          string.replace(rePropName, function(match, number, quote, subString) {
            result.push(quote ? subString.replace(reEscapeChar, '$1') : (number || match));
          });
          return result;
        });
    
        /**
         * Converts `value` to a string key if it's not a string or symbol.
         *
         * @private
         * @param {*} value The value to inspect.
         * @returns {string|symbol} Returns the key.
         */
        function toKey(value) {
          if (typeof value == 'string' || isSymbol(value)) {
            return value;
          }
          var result = (value + '');
          return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;
        }
    
        /**
         * Converts `func` to its source code.
         *
         * @private
         * @param {Function} func The function to convert.
         * @returns {string} Returns the source code.
         */
        function toSource(func) {
          if (func != null) {
            try {
              return funcToString.call(func);
            } catch (e) {}
            try {
              return (func + '');
            } catch (e) {}
          }
          return '';
        }
    
        /**
         * Updates wrapper `details` based on `bitmask` flags.
         *
         * @private
         * @returns {Array} details The details to modify.
         * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
         * @returns {Array} Returns `details`.
         */
        function updateWrapDetails(details, bitmask) {
          arrayEach(wrapFlags, function(pair) {
            var value = '_.' + pair[0];
            if ((bitmask & pair[1]) && !arrayIncludes(details, value)) {
              details.push(value);
            }
          });
          return details.sort();
        }
    
        /**
         * Creates a clone of `wrapper`.
         *
         * @private
         * @param {Object} wrapper The wrapper to clone.
         * @returns {Object} Returns the cloned wrapper.
         */
        function wrapperClone(wrapper) {
          if (wrapper instanceof LazyWrapper) {
            return wrapper.clone();
          }
          var result = new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__);
          result.__actions__ = copyArray(wrapper.__actions__);
          result.__index__  = wrapper.__index__;
          result.__values__ = wrapper.__values__;
          return result;
        }
    
        /*------------------------------------------------------------------------*/
    
        /**
         * Creates an array of elements split into groups the length of `size`.
         * If `array` can't be split evenly, the final chunk will be the remaining
         * elements.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Array
         * @param {Array} array The array to process.
         * @param {number} [size=1] The length of each chunk
         * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
         * @returns {Array} Returns the new array of chunks.
         * @example
         *
         * _.chunk(['a', 'b', 'c', 'd'], 2);
         * // => [['a', 'b'], ['c', 'd']]
         *
         * _.chunk(['a', 'b', 'c', 'd'], 3);
         * // => [['a', 'b', 'c'], ['d']]
         */
        function chunk(array, size, guard) {
          if ((guard ? isIterateeCall(array, size, guard) : size === undefined)) {
            size = 1;
          } else {
            size = nativeMax(toInteger(size), 0);
          }
          var length = array == null ? 0 : array.length;
          if (!length || size < 1) {
            return [];
          }
          var index = 0,
              resIndex = 0,
              result = Array(nativeCeil(length / size));
    
          while (index < length) {
            result[resIndex++] = baseSlice(array, index, (index += size));
          }
          return result;
        }
    
        /**
         * Creates an array with all falsey values removed. The values `false`, `null`,
         * `0`, `""`, `undefined`, and `NaN` are falsey.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Array
         * @param {Array} array The array to compact.
         * @returns {Array} Returns the new array of filtered values.
         * @example
         *
         * _.compact([0, 1, false, 2, '', 3]);
         * // => [1, 2, 3]
         */
        function compact(array) {
          var index = -1,
              length = array == null ? 0 : array.length,
              resIndex = 0,
              result = [];
    
          while (++index < length) {
            var value = array[index];
            if (value) {
              result[resIndex++] = value;
            }
          }
          return result;
        }
    
        /**
         * Creates a new array concatenating `array` with any additional arrays
         * and/or values.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {Array} array The array to concatenate.
         * @param {...*} [values] The values to concatenate.
         * @returns {Array} Returns the new concatenated array.
         * @example
         *
         * var array = [1];
         * var other = _.concat(array, 2, [3], [[4]]);
         *
         * console.log(other);
         * // => [1, 2, 3, [4]]
         *
         * console.log(array);
         * // => [1]
         */
        function concat() {
          var length = arguments.length;
          if (!length) {
            return [];
          }
          var args = Array(length - 1),
              array = arguments[0],
              index = length;
    
          while (index--) {
            args[index - 1] = arguments[index];
          }
          return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1));
        }
    
        /**
         * Creates an array of `array` values not included in the other given arrays
         * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
         * for equality comparisons. The order and references of result values are
         * determined by the first array.
         *
         * **Note:** Unlike `_.pullAll`, this method returns a new array.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Array
         * @param {Array} array The array to inspect.
         * @param {...Array} [values] The values to exclude.
         * @returns {Array} Returns the new array of filtered values.
         * @see _.without, _.xor
         * @example
         *
         * _.difference([2, 1], [2, 3]);
         * // => [1]
         */
        var difference = baseRest(function(array, values) {
          return isArrayLikeObject(array)
            ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true))
            : [];
        });
    
        /**
         * This method is like `_.difference` except that it accepts `iteratee` which
         * is invoked for each element of `array` and `values` to generate the criterion
         * by which they're compared. The order and references of result values are
         * determined by the first array. The iteratee is invoked with one argument:
         * (value).
         *
         * **Note:** Unlike `_.pullAllBy`, this method returns a new array.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {Array} array The array to inspect.
         * @param {...Array} [values] The values to exclude.
         * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
         * @returns {Array} Returns the new array of filtered values.
         * @example
         *
         * _.differenceBy([2.1, 1.2], [2.3, 3.4], Math.floor);
         * // => [1.2]
         *
         * // The `_.property` iteratee shorthand.
         * _.differenceBy([{ 'x': 2 }, { 'x': 1 }], [{ 'x': 1 }], 'x');
         * // => [{ 'x': 2 }]
         */
        var differenceBy = baseRest(function(array, values) {
          var iteratee = last(values);
          if (isArrayLikeObject(iteratee)) {
            iteratee = undefined;
          }
          return isArrayLikeObject(array)
            ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), getIteratee(iteratee, 2))
            : [];
        });
    
        /**
         * This method is like `_.difference` except that it accepts `comparator`
         * which is invoked to compare elements of `array` to `values`. The order and
         * references of result values are determined by the first array. The comparator
         * is invoked with two arguments: (arrVal, othVal).
         *
         * **Note:** Unlike `_.pullAllWith`, this method returns a new array.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {Array} array The array to inspect.
         * @param {...Array} [values] The values to exclude.
         * @param {Function} [comparator] The comparator invoked per element.
         * @returns {Array} Returns the new array of filtered values.
         * @example
         *
         * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
         *
         * _.differenceWith(objects, [{ 'x': 1, 'y': 2 }], _.isEqual);
         * // => [{ 'x': 2, 'y': 1 }]
         */
        var differenceWith = baseRest(function(array, values) {
          var comparator = last(values);
          if (isArrayLikeObject(comparator)) {
            comparator = undefined;
          }
          return isArrayLikeObject(array)
            ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), undefined, comparator)
            : [];
        });
    
        /**
         * Creates a slice of `array` with `n` elements dropped from the beginning.
         *
         * @static
         * @memberOf _
         * @since 0.5.0
         * @category Array
         * @param {Array} array The array to query.
         * @param {number} [n=1] The number of elements to drop.
         * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
         * @returns {Array} Returns the slice of `array`.
         * @example
         *
         * _.drop([1, 2, 3]);
         * // => [2, 3]
         *
         * _.drop([1, 2, 3], 2);
         * // => [3]
         *
         * _.drop([1, 2, 3], 5);
         * // => []
         *
         * _.drop([1, 2, 3], 0);
         * // => [1, 2, 3]
         */
        function drop(array, n, guard) {
          var length = array == null ? 0 : array.length;
          if (!length) {
            return [];
          }
          n = (guard || n === undefined) ? 1 : toInteger(n);
          return baseSlice(array, n < 0 ? 0 : n, length);
        }
    
        /**
         * Creates a slice of `array` with `n` elements dropped from the end.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Array
         * @param {Array} array The array to query.
         * @param {number} [n=1] The number of elements to drop.
         * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
         * @returns {Array} Returns the slice of `array`.
         * @example
         *
         * _.dropRight([1, 2, 3]);
         * // => [1, 2]
         *
         * _.dropRight([1, 2, 3], 2);
         * // => [1]
         *
         * _.dropRight([1, 2, 3], 5);
         * // => []
         *
         * _.dropRight([1, 2, 3], 0);
         * // => [1, 2, 3]
         */
        function dropRight(array, n, guard) {
          var length = array == null ? 0 : array.length;
          if (!length) {
            return [];
          }
          n = (guard || n === undefined) ? 1 : toInteger(n);
          n = length - n;
          return baseSlice(array, 0, n < 0 ? 0 : n);
        }
    
        /**
         * Creates a slice of `array` excluding elements dropped from the end.
         * Elements are dropped until `predicate` returns falsey. The predicate is
         * invoked with three arguments: (value, index, array).
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Array
         * @param {Array} array The array to query.
         * @param {Function} [predicate=_.identity] The function invoked per iteration.
         * @returns {Array} Returns the slice of `array`.
         * @example
         *
         * var users = [
         *   { 'user': 'barney',  'active': true },
         *   { 'user': 'fred',    'active': false },
         *   { 'user': 'pebbles', 'active': false }
         * ];
         *
         * _.dropRightWhile(users, function(o) { return !o.active; });
         * // => objects for ['barney']
         *
         * // The `_.matches` iteratee shorthand.
         * _.dropRightWhile(users, { 'user': 'pebbles', 'active': false });
         * // => objects for ['barney', 'fred']
         *
         * // The `_.matchesProperty` iteratee shorthand.
         * _.dropRightWhile(users, ['active', false]);
         * // => objects for ['barney']
         *
         * // The `_.property` iteratee shorthand.
         * _.dropRightWhile(users, 'active');
         * // => objects for ['barney', 'fred', 'pebbles']
         */
        function dropRightWhile(array, predicate) {
          return (array && array.length)
            ? baseWhile(array, getIteratee(predicate, 3), true, true)
            : [];
        }
    
        /**
         * Creates a slice of `array` excluding elements dropped from the beginning.
         * Elements are dropped until `predicate` returns falsey. The predicate is
         * invoked with three arguments: (value, index, array).
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Array
         * @param {Array} array The array to query.
         * @param {Function} [predicate=_.identity] The function invoked per iteration.
         * @returns {Array} Returns the slice of `array`.
         * @example
         *
         * var users = [
         *   { 'user': 'barney',  'active': false },
         *   { 'user': 'fred',    'active': false },
         *   { 'user': 'pebbles', 'active': true }
         * ];
         *
         * _.dropWhile(users, function(o) { return !o.active; });
         * // => objects for ['pebbles']
         *
         * // The `_.matches` iteratee shorthand.
         * _.dropWhile(users, { 'user': 'barney', 'active': false });
         * // => objects for ['fred', 'pebbles']
         *
         * // The `_.matchesProperty` iteratee shorthand.
         * _.dropWhile(users, ['active', false]);
         * // => objects for ['pebbles']
         *
         * // The `_.property` iteratee shorthand.
         * _.dropWhile(users, 'active');
         * // => objects for ['barney', 'fred', 'pebbles']
         */
        function dropWhile(array, predicate) {
          return (array && array.length)
            ? baseWhile(array, getIteratee(predicate, 3), true)
            : [];
        }
    
        /**
         * Fills elements of `array` with `value` from `start` up to, but not
         * including, `end`.
         *
         * **Note:** This method mutates `array`.
         *
         * @static
         * @memberOf _
         * @since 3.2.0
         * @category Array
         * @param {Array} array The array to fill.
         * @param {*} value The value to fill `array` with.
         * @param {number} [start=0] The start position.
         * @param {number} [end=array.length] The end position.
         * @returns {Array} Returns `array`.
         * @example
         *
         * var array = [1, 2, 3];
         *
         * _.fill(array, 'a');
         * console.log(array);
         * // => ['a', 'a', 'a']
         *
         * _.fill(Array(3), 2);
         * // => [2, 2, 2]
         *
         * _.fill([4, 6, 8, 10], '*', 1, 3);
         * // => [4, '*', '*', 10]
         */
        function fill(array, value, start, end) {
          var length = array == null ? 0 : array.length;
          if (!length) {
            return [];
          }
          if (start && typeof start != 'number' && isIterateeCall(array, value, start)) {
            start = 0;
            end = length;
          }
          return baseFill(array, value, start, end);
        }
    
        /**
         * This method is like `_.find` except that it returns the index of the first
         * element `predicate` returns truthy for instead of the element itself.
         *
         * @static
         * @memberOf _
         * @since 1.1.0
         * @category Array
         * @param {Array} array The array to inspect.
         * @param {Function} [predicate=_.identity] The function invoked per iteration.
         * @param {number} [fromIndex=0] The index to search from.
         * @returns {number} Returns the index of the found element, else `-1`.
         * @example
         *
         * var users = [
         *   { 'user': 'barney',  'active': false },
         *   { 'user': 'fred',    'active': false },
         *   { 'user': 'pebbles', 'active': true }
         * ];
         *
         * _.findIndex(users, function(o) { return o.user == 'barney'; });
         * // => 0
         *
         * // The `_.matches` iteratee shorthand.
         * _.findIndex(users, { 'user': 'fred', 'active': false });
         * // => 1
         *
         * // The `_.matchesProperty` iteratee shorthand.
         * _.findIndex(users, ['active', false]);
         * // => 0
         *
         * // The `_.property` iteratee shorthand.
         * _.findIndex(users, 'active');
         * // => 2
         */
        function findIndex(array, predicate, fromIndex) {
          var length = array == null ? 0 : array.length;
          if (!length) {
            return -1;
          }
          var index = fromIndex == null ? 0 : toInteger(fromIndex);
          if (index < 0) {
            index = nativeMax(length + index, 0);
          }
          return baseFindIndex(array, getIteratee(predicate, 3), index);
        }
    
        /**
         * This method is like `_.findIndex` except that it iterates over elements
         * of `collection` from right to left.
         *
         * @static
         * @memberOf _
         * @since 2.0.0
         * @category Array
         * @param {Array} array The array to inspect.
         * @param {Function} [predicate=_.identity] The function invoked per iteration.
         * @param {number} [fromIndex=array.length-1] The index to search from.
         * @returns {number} Returns the index of the found element, else `-1`.
         * @example
         *
         * var users = [
         *   { 'user': 'barney',  'active': true },
         *   { 'user': 'fred',    'active': false },
         *   { 'user': 'pebbles', 'active': false }
         * ];
         *
         * _.findLastIndex(users, function(o) { return o.user == 'pebbles'; });
         * // => 2
         *
         * // The `_.matches` iteratee shorthand.
         * _.findLastIndex(users, { 'user': 'barney', 'active': true });
         * // => 0
         *
         * // The `_.matchesProperty` iteratee shorthand.
         * _.findLastIndex(users, ['active', false]);
         * // => 2
         *
         * // The `_.property` iteratee shorthand.
         * _.findLastIndex(users, 'active');
         * // => 0
         */
        function findLastIndex(array, predicate, fromIndex) {
          var length = array == null ? 0 : array.length;
          if (!length) {
            return -1;
          }
          var index = length - 1;
          if (fromIndex !== undefined) {
            index = toInteger(fromIndex);
            index = fromIndex < 0
              ? nativeMax(length + index, 0)
              : nativeMin(index, length - 1);
          }
          return baseFindIndex(array, getIteratee(predicate, 3), index, true);
        }
    
        /**
         * Flattens `array` a single level deep.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Array
         * @param {Array} array The array to flatten.
         * @returns {Array} Returns the new flattened array.
         * @example
         *
         * _.flatten([1, [2, [3, [4]], 5]]);
         * // => [1, 2, [3, [4]], 5]
         */
        function flatten(array) {
          var length = array == null ? 0 : array.length;
          return length ? baseFlatten(array, 1) : [];
        }
    
        /**
         * Recursively flattens `array`.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Array
         * @param {Array} array The array to flatten.
         * @returns {Array} Returns the new flattened array.
         * @example
         *
         * _.flattenDeep([1, [2, [3, [4]], 5]]);
         * // => [1, 2, 3, 4, 5]
         */
        function flattenDeep(array) {
          var length = array == null ? 0 : array.length;
          return length ? baseFlatten(array, INFINITY) : [];
        }
    
        /**
         * Recursively flatten `array` up to `depth` times.
         *
         * @static
         * @memberOf _
         * @since 4.4.0
         * @category Array
         * @param {Array} array The array to flatten.
         * @param {number} [depth=1] The maximum recursion depth.
         * @returns {Array} Returns the new flattened array.
         * @example
         *
         * var array = [1, [2, [3, [4]], 5]];
         *
         * _.flattenDepth(array, 1);
         * // => [1, 2, [3, [4]], 5]
         *
         * _.flattenDepth(array, 2);
         * // => [1, 2, 3, [4], 5]
         */
        function flattenDepth(array, depth) {
          var length = array == null ? 0 : array.length;
          if (!length) {
            return [];
          }
          depth = depth === undefined ? 1 : toInteger(depth);
          return baseFlatten(array, depth);
        }
    
        /**
         * The inverse of `_.toPairs`; this method returns an object composed
         * from key-value `pairs`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {Array} pairs The key-value pairs.
         * @returns {Object} Returns the new object.
         * @example
         *
         * _.fromPairs([['a', 1], ['b', 2]]);
         * // => { 'a': 1, 'b': 2 }
         */
        function fromPairs(pairs) {
          var index = -1,
              length = pairs == null ? 0 : pairs.length,
              result = {};
    
          while (++index < length) {
            var pair = pairs[index];
            result[pair[0]] = pair[1];
          }
          return result;
        }
    
        /**
         * Gets the first element of `array`.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @alias first
         * @category Array
         * @param {Array} array The array to query.
         * @returns {*} Returns the first element of `array`.
         * @example
         *
         * _.head([1, 2, 3]);
         * // => 1
         *
         * _.head([]);
         * // => undefined
         */
        function head(array) {
          return (array && array.length) ? array[0] : undefined;
        }
    
        /**
         * Gets the index at which the first occurrence of `value` is found in `array`
         * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
         * for equality comparisons. If `fromIndex` is negative, it's used as the
         * offset from the end of `array`.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Array
         * @param {Array} array The array to inspect.
         * @param {*} value The value to search for.
         * @param {number} [fromIndex=0] The index to search from.
         * @returns {number} Returns the index of the matched value, else `-1`.
         * @example
         *
         * _.indexOf([1, 2, 1, 2], 2);
         * // => 1
         *
         * // Search from the `fromIndex`.
         * _.indexOf([1, 2, 1, 2], 2, 2);
         * // => 3
         */
        function indexOf(array, value, fromIndex) {
          var length = array == null ? 0 : array.length;
          if (!length) {
            return -1;
          }
          var index = fromIndex == null ? 0 : toInteger(fromIndex);
          if (index < 0) {
            index = nativeMax(length + index, 0);
          }
          return baseIndexOf(array, value, index);
        }
    
        /**
         * Gets all but the last element of `array`.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Array
         * @param {Array} array The array to query.
         * @returns {Array} Returns the slice of `array`.
         * @example
         *
         * _.initial([1, 2, 3]);
         * // => [1, 2]
         */
        function initial(array) {
          var length = array == null ? 0 : array.length;
          return length ? baseSlice(array, 0, -1) : [];
        }
    
        /**
         * Creates an array of unique values that are included in all given arrays
         * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
         * for equality comparisons. The order and references of result values are
         * determined by the first array.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Array
         * @param {...Array} [arrays] The arrays to inspect.
         * @returns {Array} Returns the new array of intersecting values.
         * @example
         *
         * _.intersection([2, 1], [2, 3]);
         * // => [2]
         */
        var intersection = baseRest(function(arrays) {
          var mapped = arrayMap(arrays, castArrayLikeObject);
          return (mapped.length && mapped[0] === arrays[0])
            ? baseIntersection(mapped)
            : [];
        });
    
        /**
         * This method is like `_.intersection` except that it accepts `iteratee`
         * which is invoked for each element of each `arrays` to generate the criterion
         * by which they're compared. The order and references of result values are
         * determined by the first array. The iteratee is invoked with one argument:
         * (value).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {...Array} [arrays] The arrays to inspect.
         * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
         * @returns {Array} Returns the new array of intersecting values.
         * @example
         *
         * _.intersectionBy([2.1, 1.2], [2.3, 3.4], Math.floor);
         * // => [2.1]
         *
         * // The `_.property` iteratee shorthand.
         * _.intersectionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');
         * // => [{ 'x': 1 }]
         */
        var intersectionBy = baseRest(function(arrays) {
          var iteratee = last(arrays),
              mapped = arrayMap(arrays, castArrayLikeObject);
    
          if (iteratee === last(mapped)) {
            iteratee = undefined;
          } else {
            mapped.pop();
          }
          return (mapped.length && mapped[0] === arrays[0])
            ? baseIntersection(mapped, getIteratee(iteratee, 2))
            : [];
        });
    
        /**
         * This method is like `_.intersection` except that it accepts `comparator`
         * which is invoked to compare elements of `arrays`. The order and references
         * of result values are determined by the first array. The comparator is
         * invoked with two arguments: (arrVal, othVal).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {...Array} [arrays] The arrays to inspect.
         * @param {Function} [comparator] The comparator invoked per element.
         * @returns {Array} Returns the new array of intersecting values.
         * @example
         *
         * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
         * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];
         *
         * _.intersectionWith(objects, others, _.isEqual);
         * // => [{ 'x': 1, 'y': 2 }]
         */
        var intersectionWith = baseRest(function(arrays) {
          var comparator = last(arrays),
              mapped = arrayMap(arrays, castArrayLikeObject);
    
          comparator = typeof comparator == 'function' ? comparator : undefined;
          if (comparator) {
            mapped.pop();
          }
          return (mapped.length && mapped[0] === arrays[0])
            ? baseIntersection(mapped, undefined, comparator)
            : [];
        });
    
        /**
         * Converts all elements in `array` into a string separated by `separator`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {Array} array The array to convert.
         * @param {string} [separator=','] The element separator.
         * @returns {string} Returns the joined string.
         * @example
         *
         * _.join(['a', 'b', 'c'], '~');
         * // => 'a~b~c'
         */
        function join(array, separator) {
          return array == null ? '' : nativeJoin.call(array, separator);
        }
    
        /**
         * Gets the last element of `array`.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Array
         * @param {Array} array The array to query.
         * @returns {*} Returns the last element of `array`.
         * @example
         *
         * _.last([1, 2, 3]);
         * // => 3
         */
        function last(array) {
          var length = array == null ? 0 : array.length;
          return length ? array[length - 1] : undefined;
        }
    
        /**
         * This method is like `_.indexOf` except that it iterates over elements of
         * `array` from right to left.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Array
         * @param {Array} array The array to inspect.
         * @param {*} value The value to search for.
         * @param {number} [fromIndex=array.length-1] The index to search from.
         * @returns {number} Returns the index of the matched value, else `-1`.
         * @example
         *
         * _.lastIndexOf([1, 2, 1, 2], 2);
         * // => 3
         *
         * // Search from the `fromIndex`.
         * _.lastIndexOf([1, 2, 1, 2], 2, 2);
         * // => 1
         */
        function lastIndexOf(array, value, fromIndex) {
          var length = array == null ? 0 : array.length;
          if (!length) {
            return -1;
          }
          var index = length;
          if (fromIndex !== undefined) {
            index = toInteger(fromIndex);
            index = index < 0 ? nativeMax(length + index, 0) : nativeMin(index, length - 1);
          }
          return value === value
            ? strictLastIndexOf(array, value, index)
            : baseFindIndex(array, baseIsNaN, index, true);
        }
    
        /**
         * Gets the element at index `n` of `array`. If `n` is negative, the nth
         * element from the end is returned.
         *
         * @static
         * @memberOf _
         * @since 4.11.0
         * @category Array
         * @param {Array} array The array to query.
         * @param {number} [n=0] The index of the element to return.
         * @returns {*} Returns the nth element of `array`.
         * @example
         *
         * var array = ['a', 'b', 'c', 'd'];
         *
         * _.nth(array, 1);
         * // => 'b'
         *
         * _.nth(array, -2);
         * // => 'c';
         */
        function nth(array, n) {
          return (array && array.length) ? baseNth(array, toInteger(n)) : undefined;
        }
    
        /**
         * Removes all given values from `array` using
         * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
         * for equality comparisons.
         *
         * **Note:** Unlike `_.without`, this method mutates `array`. Use `_.remove`
         * to remove elements from an array by predicate.
         *
         * @static
         * @memberOf _
         * @since 2.0.0
         * @category Array
         * @param {Array} array The array to modify.
         * @param {...*} [values] The values to remove.
         * @returns {Array} Returns `array`.
         * @example
         *
         * var array = ['a', 'b', 'c', 'a', 'b', 'c'];
         *
         * _.pull(array, 'a', 'c');
         * console.log(array);
         * // => ['b', 'b']
         */
        var pull = baseRest(pullAll);
    
        /**
         * This method is like `_.pull` except that it accepts an array of values to remove.
         *
         * **Note:** Unlike `_.difference`, this method mutates `array`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {Array} array The array to modify.
         * @param {Array} values The values to remove.
         * @returns {Array} Returns `array`.
         * @example
         *
         * var array = ['a', 'b', 'c', 'a', 'b', 'c'];
         *
         * _.pullAll(array, ['a', 'c']);
         * console.log(array);
         * // => ['b', 'b']
         */
        function pullAll(array, values) {
          return (array && array.length && values && values.length)
            ? basePullAll(array, values)
            : array;
        }
    
        /**
         * This method is like `_.pullAll` except that it accepts `iteratee` which is
         * invoked for each element of `array` and `values` to generate the criterion
         * by which they're compared. The iteratee is invoked with one argument: (value).
         *
         * **Note:** Unlike `_.differenceBy`, this method mutates `array`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {Array} array The array to modify.
         * @param {Array} values The values to remove.
         * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
         * @returns {Array} Returns `array`.
         * @example
         *
         * var array = [{ 'x': 1 }, { 'x': 2 }, { 'x': 3 }, { 'x': 1 }];
         *
         * _.pullAllBy(array, [{ 'x': 1 }, { 'x': 3 }], 'x');
         * console.log(array);
         * // => [{ 'x': 2 }]
         */
        function pullAllBy(array, values, iteratee) {
          return (array && array.length && values && values.length)
            ? basePullAll(array, values, getIteratee(iteratee, 2))
            : array;
        }
    
        /**
         * This method is like `_.pullAll` except that it accepts `comparator` which
         * is invoked to compare elements of `array` to `values`. The comparator is
         * invoked with two arguments: (arrVal, othVal).
         *
         * **Note:** Unlike `_.differenceWith`, this method mutates `array`.
         *
         * @static
         * @memberOf _
         * @since 4.6.0
         * @category Array
         * @param {Array} array The array to modify.
         * @param {Array} values The values to remove.
         * @param {Function} [comparator] The comparator invoked per element.
         * @returns {Array} Returns `array`.
         * @example
         *
         * var array = [{ 'x': 1, 'y': 2 }, { 'x': 3, 'y': 4 }, { 'x': 5, 'y': 6 }];
         *
         * _.pullAllWith(array, [{ 'x': 3, 'y': 4 }], _.isEqual);
         * console.log(array);
         * // => [{ 'x': 1, 'y': 2 }, { 'x': 5, 'y': 6 }]
         */
        function pullAllWith(array, values, comparator) {
          return (array && array.length && values && values.length)
            ? basePullAll(array, values, undefined, comparator)
            : array;
        }
    
        /**
         * Removes elements from `array` corresponding to `indexes` and returns an
         * array of removed elements.
         *
         * **Note:** Unlike `_.at`, this method mutates `array`.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Array
         * @param {Array} array The array to modify.
         * @param {...(number|number[])} [indexes] The indexes of elements to remove.
         * @returns {Array} Returns the new array of removed elements.
         * @example
         *
         * var array = ['a', 'b', 'c', 'd'];
         * var pulled = _.pullAt(array, [1, 3]);
         *
         * console.log(array);
         * // => ['a', 'c']
         *
         * console.log(pulled);
         * // => ['b', 'd']
         */
        var pullAt = flatRest(function(array, indexes) {
          var length = array == null ? 0 : array.length,
              result = baseAt(array, indexes);
    
          basePullAt(array, arrayMap(indexes, function(index) {
            return isIndex(index, length) ? +index : index;
          }).sort(compareAscending));
    
          return result;
        });
    
        /**
         * Removes all elements from `array` that `predicate` returns truthy for
         * and returns an array of the removed elements. The predicate is invoked
         * with three arguments: (value, index, array).
         *
         * **Note:** Unlike `_.filter`, this method mutates `array`. Use `_.pull`
         * to pull elements from an array by value.
         *
         * @static
         * @memberOf _
         * @since 2.0.0
         * @category Array
         * @param {Array} array The array to modify.
         * @param {Function} [predicate=_.identity] The function invoked per iteration.
         * @returns {Array} Returns the new array of removed elements.
         * @example
         *
         * var array = [1, 2, 3, 4];
         * var evens = _.remove(array, function(n) {
         *   return n % 2 == 0;
         * });
         *
         * console.log(array);
         * // => [1, 3]
         *
         * console.log(evens);
         * // => [2, 4]
         */
        function remove(array, predicate) {
          var result = [];
          if (!(array && array.length)) {
            return result;
          }
          var index = -1,
              indexes = [],
              length = array.length;
    
          predicate = getIteratee(predicate, 3);
          while (++index < length) {
            var value = array[index];
            if (predicate(value, index, array)) {
              result.push(value);
              indexes.push(index);
            }
          }
          basePullAt(array, indexes);
          return result;
        }
    
        /**
         * Reverses `array` so that the first element becomes the last, the second
         * element becomes the second to last, and so on.
         *
         * **Note:** This method mutates `array` and is based on
         * [`Array#reverse`](https://mdn.io/Array/reverse).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {Array} array The array to modify.
         * @returns {Array} Returns `array`.
         * @example
         *
         * var array = [1, 2, 3];
         *
         * _.reverse(array);
         * // => [3, 2, 1]
         *
         * console.log(array);
         * // => [3, 2, 1]
         */
        function reverse(array) {
          return array == null ? array : nativeReverse.call(array);
        }
    
        /**
         * Creates a slice of `array` from `start` up to, but not including, `end`.
         *
         * **Note:** This method is used instead of
         * [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are
         * returned.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Array
         * @param {Array} array The array to slice.
         * @param {number} [start=0] The start position.
         * @param {number} [end=array.length] The end position.
         * @returns {Array} Returns the slice of `array`.
         */
        function slice(array, start, end) {
          var length = array == null ? 0 : array.length;
          if (!length) {
            return [];
          }
          if (end && typeof end != 'number' && isIterateeCall(array, start, end)) {
            start = 0;
            end = length;
          }
          else {
            start = start == null ? 0 : toInteger(start);
            end = end === undefined ? length : toInteger(end);
          }
          return baseSlice(array, start, end);
        }
    
        /**
         * Uses a binary search to determine the lowest index at which `value`
         * should be inserted into `array` in order to maintain its sort order.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Array
         * @param {Array} array The sorted array to inspect.
         * @param {*} value The value to evaluate.
         * @returns {number} Returns the index at which `value` should be inserted
         *  into `array`.
         * @example
         *
         * _.sortedIndex([30, 50], 40);
         * // => 1
         */
        function sortedIndex(array, value) {
          return baseSortedIndex(array, value);
        }
    
        /**
         * This method is like `_.sortedIndex` except that it accepts `iteratee`
         * which is invoked for `value` and each element of `array` to compute their
         * sort ranking. The iteratee is invoked with one argument: (value).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {Array} array The sorted array to inspect.
         * @param {*} value The value to evaluate.
         * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
         * @returns {number} Returns the index at which `value` should be inserted
         *  into `array`.
         * @example
         *
         * var objects = [{ 'x': 4 }, { 'x': 5 }];
         *
         * _.sortedIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });
         * // => 0
         *
         * // The `_.property` iteratee shorthand.
         * _.sortedIndexBy(objects, { 'x': 4 }, 'x');
         * // => 0
         */
        function sortedIndexBy(array, value, iteratee) {
          return baseSortedIndexBy(array, value, getIteratee(iteratee, 2));
        }
    
        /**
         * This method is like `_.indexOf` except that it performs a binary
         * search on a sorted `array`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {Array} array The array to inspect.
         * @param {*} value The value to search for.
         * @returns {number} Returns the index of the matched value, else `-1`.
         * @example
         *
         * _.sortedIndexOf([4, 5, 5, 5, 6], 5);
         * // => 1
         */
        function sortedIndexOf(array, value) {
          var length = array == null ? 0 : array.length;
          if (length) {
            var index = baseSortedIndex(array, value);
            if (index < length && eq(array[index], value)) {
              return index;
            }
          }
          return -1;
        }
    
        /**
         * This method is like `_.sortedIndex` except that it returns the highest
         * index at which `value` should be inserted into `array` in order to
         * maintain its sort order.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Array
         * @param {Array} array The sorted array to inspect.
         * @param {*} value The value to evaluate.
         * @returns {number} Returns the index at which `value` should be inserted
         *  into `array`.
         * @example
         *
         * _.sortedLastIndex([4, 5, 5, 5, 6], 5);
         * // => 4
         */
        function sortedLastIndex(array, value) {
          return baseSortedIndex(array, value, true);
        }
    
        /**
         * This method is like `_.sortedLastIndex` except that it accepts `iteratee`
         * which is invoked for `value` and each element of `array` to compute their
         * sort ranking. The iteratee is invoked with one argument: (value).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {Array} array The sorted array to inspect.
         * @param {*} value The value to evaluate.
         * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
         * @returns {number} Returns the index at which `value` should be inserted
         *  into `array`.
         * @example
         *
         * var objects = [{ 'x': 4 }, { 'x': 5 }];
         *
         * _.sortedLastIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });
         * // => 1
         *
         * // The `_.property` iteratee shorthand.
         * _.sortedLastIndexBy(objects, { 'x': 4 }, 'x');
         * // => 1
         */
        function sortedLastIndexBy(array, value, iteratee) {
          return baseSortedIndexBy(array, value, getIteratee(iteratee, 2), true);
        }
    
        /**
         * This method is like `_.lastIndexOf` except that it performs a binary
         * search on a sorted `array`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {Array} array The array to inspect.
         * @param {*} value The value to search for.
         * @returns {number} Returns the index of the matched value, else `-1`.
         * @example
         *
         * _.sortedLastIndexOf([4, 5, 5, 5, 6], 5);
         * // => 3
         */
        function sortedLastIndexOf(array, value) {
          var length = array == null ? 0 : array.length;
          if (length) {
            var index = baseSortedIndex(array, value, true) - 1;
            if (eq(array[index], value)) {
              return index;
            }
          }
          return -1;
        }
    
        /**
         * This method is like `_.uniq` except that it's designed and optimized
         * for sorted arrays.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {Array} array The array to inspect.
         * @returns {Array} Returns the new duplicate free array.
         * @example
         *
         * _.sortedUniq([1, 1, 2]);
         * // => [1, 2]
         */
        function sortedUniq(array) {
          return (array && array.length)
            ? baseSortedUniq(array)
            : [];
        }
    
        /**
         * This method is like `_.uniqBy` except that it's designed and optimized
         * for sorted arrays.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {Array} array The array to inspect.
         * @param {Function} [iteratee] The iteratee invoked per element.
         * @returns {Array} Returns the new duplicate free array.
         * @example
         *
         * _.sortedUniqBy([1.1, 1.2, 2.3, 2.4], Math.floor);
         * // => [1.1, 2.3]
         */
        function sortedUniqBy(array, iteratee) {
          return (array && array.length)
            ? baseSortedUniq(array, getIteratee(iteratee, 2))
            : [];
        }
    
        /**
         * Gets all but the first element of `array`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {Array} array The array to query.
         * @returns {Array} Returns the slice of `array`.
         * @example
         *
         * _.tail([1, 2, 3]);
         * // => [2, 3]
         */
        function tail(array) {
          var length = array == null ? 0 : array.length;
          return length ? baseSlice(array, 1, length) : [];
        }
    
        /**
         * Creates a slice of `array` with `n` elements taken from the beginning.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Array
         * @param {Array} array The array to query.
         * @param {number} [n=1] The number of elements to take.
         * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
         * @returns {Array} Returns the slice of `array`.
         * @example
         *
         * _.take([1, 2, 3]);
         * // => [1]
         *
         * _.take([1, 2, 3], 2);
         * // => [1, 2]
         *
         * _.take([1, 2, 3], 5);
         * // => [1, 2, 3]
         *
         * _.take([1, 2, 3], 0);
         * // => []
         */
        function take(array, n, guard) {
          if (!(array && array.length)) {
            return [];
          }
          n = (guard || n === undefined) ? 1 : toInteger(n);
          return baseSlice(array, 0, n < 0 ? 0 : n);
        }
    
        /**
         * Creates a slice of `array` with `n` elements taken from the end.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Array
         * @param {Array} array The array to query.
         * @param {number} [n=1] The number of elements to take.
         * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
         * @returns {Array} Returns the slice of `array`.
         * @example
         *
         * _.takeRight([1, 2, 3]);
         * // => [3]
         *
         * _.takeRight([1, 2, 3], 2);
         * // => [2, 3]
         *
         * _.takeRight([1, 2, 3], 5);
         * // => [1, 2, 3]
         *
         * _.takeRight([1, 2, 3], 0);
         * // => []
         */
        function takeRight(array, n, guard) {
          var length = array == null ? 0 : array.length;
          if (!length) {
            return [];
          }
          n = (guard || n === undefined) ? 1 : toInteger(n);
          n = length - n;
          return baseSlice(array, n < 0 ? 0 : n, length);
        }
    
        /**
         * Creates a slice of `array` with elements taken from the end. Elements are
         * taken until `predicate` returns falsey. The predicate is invoked with
         * three arguments: (value, index, array).
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Array
         * @param {Array} array The array to query.
         * @param {Function} [predicate=_.identity] The function invoked per iteration.
         * @returns {Array} Returns the slice of `array`.
         * @example
         *
         * var users = [
         *   { 'user': 'barney',  'active': true },
         *   { 'user': 'fred',    'active': false },
         *   { 'user': 'pebbles', 'active': false }
         * ];
         *
         * _.takeRightWhile(users, function(o) { return !o.active; });
         * // => objects for ['fred', 'pebbles']
         *
         * // The `_.matches` iteratee shorthand.
         * _.takeRightWhile(users, { 'user': 'pebbles', 'active': false });
         * // => objects for ['pebbles']
         *
         * // The `_.matchesProperty` iteratee shorthand.
         * _.takeRightWhile(users, ['active', false]);
         * // => objects for ['fred', 'pebbles']
         *
         * // The `_.property` iteratee shorthand.
         * _.takeRightWhile(users, 'active');
         * // => []
         */
        function takeRightWhile(array, predicate) {
          return (array && array.length)
            ? baseWhile(array, getIteratee(predicate, 3), false, true)
            : [];
        }
    
        /**
         * Creates a slice of `array` with elements taken from the beginning. Elements
         * are taken until `predicate` returns falsey. The predicate is invoked with
         * three arguments: (value, index, array).
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Array
         * @param {Array} array The array to query.
         * @param {Function} [predicate=_.identity] The function invoked per iteration.
         * @returns {Array} Returns the slice of `array`.
         * @example
         *
         * var users = [
         *   { 'user': 'barney',  'active': false },
         *   { 'user': 'fred',    'active': false },
         *   { 'user': 'pebbles', 'active': true }
         * ];
         *
         * _.takeWhile(users, function(o) { return !o.active; });
         * // => objects for ['barney', 'fred']
         *
         * // The `_.matches` iteratee shorthand.
         * _.takeWhile(users, { 'user': 'barney', 'active': false });
         * // => objects for ['barney']
         *
         * // The `_.matchesProperty` iteratee shorthand.
         * _.takeWhile(users, ['active', false]);
         * // => objects for ['barney', 'fred']
         *
         * // The `_.property` iteratee shorthand.
         * _.takeWhile(users, 'active');
         * // => []
         */
        function takeWhile(array, predicate) {
          return (array && array.length)
            ? baseWhile(array, getIteratee(predicate, 3))
            : [];
        }
    
        /**
         * Creates an array of unique values, in order, from all given arrays using
         * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
         * for equality comparisons.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Array
         * @param {...Array} [arrays] The arrays to inspect.
         * @returns {Array} Returns the new array of combined values.
         * @example
         *
         * _.union([2], [1, 2]);
         * // => [2, 1]
         */
        var union = baseRest(function(arrays) {
          return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true));
        });
    
        /**
         * This method is like `_.union` except that it accepts `iteratee` which is
         * invoked for each element of each `arrays` to generate the criterion by
         * which uniqueness is computed. Result values are chosen from the first
         * array in which the value occurs. The iteratee is invoked with one argument:
         * (value).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {...Array} [arrays] The arrays to inspect.
         * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
         * @returns {Array} Returns the new array of combined values.
         * @example
         *
         * _.unionBy([2.1], [1.2, 2.3], Math.floor);
         * // => [2.1, 1.2]
         *
         * // The `_.property` iteratee shorthand.
         * _.unionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');
         * // => [{ 'x': 1 }, { 'x': 2 }]
         */
        var unionBy = baseRest(function(arrays) {
          var iteratee = last(arrays);
          if (isArrayLikeObject(iteratee)) {
            iteratee = undefined;
          }
          return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), getIteratee(iteratee, 2));
        });
    
        /**
         * This method is like `_.union` except that it accepts `comparator` which
         * is invoked to compare elements of `arrays`. Result values are chosen from
         * the first array in which the value occurs. The comparator is invoked
         * with two arguments: (arrVal, othVal).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {...Array} [arrays] The arrays to inspect.
         * @param {Function} [comparator] The comparator invoked per element.
         * @returns {Array} Returns the new array of combined values.
         * @example
         *
         * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
         * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];
         *
         * _.unionWith(objects, others, _.isEqual);
         * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }]
         */
        var unionWith = baseRest(function(arrays) {
          var comparator = last(arrays);
          comparator = typeof comparator == 'function' ? comparator : undefined;
          return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), undefined, comparator);
        });
    
        /**
         * Creates a duplicate-free version of an array, using
         * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
         * for equality comparisons, in which only the first occurrence of each element
         * is kept. The order of result values is determined by the order they occur
         * in the array.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Array
         * @param {Array} array The array to inspect.
         * @returns {Array} Returns the new duplicate free array.
         * @example
         *
         * _.uniq([2, 1, 2]);
         * // => [2, 1]
         */
        function uniq(array) {
          return (array && array.length) ? baseUniq(array) : [];
        }
    
        /**
         * This method is like `_.uniq` except that it accepts `iteratee` which is
         * invoked for each element in `array` to generate the criterion by which
         * uniqueness is computed. The order of result values is determined by the
         * order they occur in the array. The iteratee is invoked with one argument:
         * (value).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {Array} array The array to inspect.
         * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
         * @returns {Array} Returns the new duplicate free array.
         * @example
         *
         * _.uniqBy([2.1, 1.2, 2.3], Math.floor);
         * // => [2.1, 1.2]
         *
         * // The `_.property` iteratee shorthand.
         * _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x');
         * // => [{ 'x': 1 }, { 'x': 2 }]
         */
        function uniqBy(array, iteratee) {
          return (array && array.length) ? baseUniq(array, getIteratee(iteratee, 2)) : [];
        }
    
        /**
         * This method is like `_.uniq` except that it accepts `comparator` which
         * is invoked to compare elements of `array`. The order of result values is
         * determined by the order they occur in the array.The comparator is invoked
         * with two arguments: (arrVal, othVal).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {Array} array The array to inspect.
         * @param {Function} [comparator] The comparator invoked per element.
         * @returns {Array} Returns the new duplicate free array.
         * @example
         *
         * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 2 }];
         *
         * _.uniqWith(objects, _.isEqual);
         * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]
         */
        function uniqWith(array, comparator) {
          comparator = typeof comparator == 'function' ? comparator : undefined;
          return (array && array.length) ? baseUniq(array, undefined, comparator) : [];
        }
    
        /**
         * This method is like `_.zip` except that it accepts an array of grouped
         * elements and creates an array regrouping the elements to their pre-zip
         * configuration.
         *
         * @static
         * @memberOf _
         * @since 1.2.0
         * @category Array
         * @param {Array} array The array of grouped elements to process.
         * @returns {Array} Returns the new array of regrouped elements.
         * @example
         *
         * var zipped = _.zip(['a', 'b'], [1, 2], [true, false]);
         * // => [['a', 1, true], ['b', 2, false]]
         *
         * _.unzip(zipped);
         * // => [['a', 'b'], [1, 2], [true, false]]
         */
        function unzip(array) {
          if (!(array && array.length)) {
            return [];
          }
          var length = 0;
          array = arrayFilter(array, function(group) {
            if (isArrayLikeObject(group)) {
              length = nativeMax(group.length, length);
              return true;
            }
          });
          return baseTimes(length, function(index) {
            return arrayMap(array, baseProperty(index));
          });
        }
    
        /**
         * This method is like `_.unzip` except that it accepts `iteratee` to specify
         * how regrouped values should be combined. The iteratee is invoked with the
         * elements of each group: (...group).
         *
         * @static
         * @memberOf _
         * @since 3.8.0
         * @category Array
         * @param {Array} array The array of grouped elements to process.
         * @param {Function} [iteratee=_.identity] The function to combine
         *  regrouped values.
         * @returns {Array} Returns the new array of regrouped elements.
         * @example
         *
         * var zipped = _.zip([1, 2], [10, 20], [100, 200]);
         * // => [[1, 10, 100], [2, 20, 200]]
         *
         * _.unzipWith(zipped, _.add);
         * // => [3, 30, 300]
         */
        function unzipWith(array, iteratee) {
          if (!(array && array.length)) {
            return [];
          }
          var result = unzip(array);
          if (iteratee == null) {
            return result;
          }
          return arrayMap(result, function(group) {
            return apply(iteratee, undefined, group);
          });
        }
    
        /**
         * Creates an array excluding all given values using
         * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
         * for equality comparisons.
         *
         * **Note:** Unlike `_.pull`, this method returns a new array.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Array
         * @param {Array} array The array to inspect.
         * @param {...*} [values] The values to exclude.
         * @returns {Array} Returns the new array of filtered values.
         * @see _.difference, _.xor
         * @example
         *
         * _.without([2, 1, 2, 3], 1, 2);
         * // => [3]
         */
        var without = baseRest(function(array, values) {
          return isArrayLikeObject(array)
            ? baseDifference(array, values)
            : [];
        });
    
        /**
         * Creates an array of unique values that is the
         * [symmetric difference](https://en.wikipedia.org/wiki/Symmetric_difference)
         * of the given arrays. The order of result values is determined by the order
         * they occur in the arrays.
         *
         * @static
         * @memberOf _
         * @since 2.4.0
         * @category Array
         * @param {...Array} [arrays] The arrays to inspect.
         * @returns {Array} Returns the new array of filtered values.
         * @see _.difference, _.without
         * @example
         *
         * _.xor([2, 1], [2, 3]);
         * // => [1, 3]
         */
        var xor = baseRest(function(arrays) {
          return baseXor(arrayFilter(arrays, isArrayLikeObject));
        });
    
        /**
         * This method is like `_.xor` except that it accepts `iteratee` which is
         * invoked for each element of each `arrays` to generate the criterion by
         * which by which they're compared. The order of result values is determined
         * by the order they occur in the arrays. The iteratee is invoked with one
         * argument: (value).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {...Array} [arrays] The arrays to inspect.
         * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
         * @returns {Array} Returns the new array of filtered values.
         * @example
         *
         * _.xorBy([2.1, 1.2], [2.3, 3.4], Math.floor);
         * // => [1.2, 3.4]
         *
         * // The `_.property` iteratee shorthand.
         * _.xorBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');
         * // => [{ 'x': 2 }]
         */
        var xorBy = baseRest(function(arrays) {
          var iteratee = last(arrays);
          if (isArrayLikeObject(iteratee)) {
            iteratee = undefined;
          }
          return baseXor(arrayFilter(arrays, isArrayLikeObject), getIteratee(iteratee, 2));
        });
    
        /**
         * This method is like `_.xor` except that it accepts `comparator` which is
         * invoked to compare elements of `arrays`. The order of result values is
         * determined by the order they occur in the arrays. The comparator is invoked
         * with two arguments: (arrVal, othVal).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Array
         * @param {...Array} [arrays] The arrays to inspect.
         * @param {Function} [comparator] The comparator invoked per element.
         * @returns {Array} Returns the new array of filtered values.
         * @example
         *
         * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
         * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];
         *
         * _.xorWith(objects, others, _.isEqual);
         * // => [{ 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }]
         */
        var xorWith = baseRest(function(arrays) {
          var comparator = last(arrays);
          comparator = typeof comparator == 'function' ? comparator : undefined;
          return baseXor(arrayFilter(arrays, isArrayLikeObject), undefined, comparator);
        });
    
        /**
         * Creates an array of grouped elements, the first of which contains the
         * first elements of the given arrays, the second of which contains the
         * second elements of the given arrays, and so on.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Array
         * @param {...Array} [arrays] The arrays to process.
         * @returns {Array} Returns the new array of grouped elements.
         * @example
         *
         * _.zip(['a', 'b'], [1, 2], [true, false]);
         * // => [['a', 1, true], ['b', 2, false]]
         */
        var zip = baseRest(unzip);
    
        /**
         * This method is like `_.fromPairs` except that it accepts two arrays,
         * one of property identifiers and one of corresponding values.
         *
         * @static
         * @memberOf _
         * @since 0.4.0
         * @category Array
         * @param {Array} [props=[]] The property identifiers.
         * @param {Array} [values=[]] The property values.
         * @returns {Object} Returns the new object.
         * @example
         *
         * _.zipObject(['a', 'b'], [1, 2]);
         * // => { 'a': 1, 'b': 2 }
         */
        function zipObject(props, values) {
          return baseZipObject(props || [], values || [], assignValue);
        }
    
        /**
         * This method is like `_.zipObject` except that it supports property paths.
         *
         * @static
         * @memberOf _
         * @since 4.1.0
         * @category Array
         * @param {Array} [props=[]] The property identifiers.
         * @param {Array} [values=[]] The property values.
         * @returns {Object} Returns the new object.
         * @example
         *
         * _.zipObjectDeep(['a.b[0].c', 'a.b[1].d'], [1, 2]);
         * // => { 'a': { 'b': [{ 'c': 1 }, { 'd': 2 }] } }
         */
        function zipObjectDeep(props, values) {
          return baseZipObject(props || [], values || [], baseSet);
        }
    
        /**
         * This method is like `_.zip` except that it accepts `iteratee` to specify
         * how grouped values should be combined. The iteratee is invoked with the
         * elements of each group: (...group).
         *
         * @static
         * @memberOf _
         * @since 3.8.0
         * @category Array
         * @param {...Array} [arrays] The arrays to process.
         * @param {Function} [iteratee=_.identity] The function to combine
         *  grouped values.
         * @returns {Array} Returns the new array of grouped elements.
         * @example
         *
         * _.zipWith([1, 2], [10, 20], [100, 200], function(a, b, c) {
         *   return a + b + c;
         * });
         * // => [111, 222]
         */
        var zipWith = baseRest(function(arrays) {
          var length = arrays.length,
              iteratee = length > 1 ? arrays[length - 1] : undefined;
    
          iteratee = typeof iteratee == 'function' ? (arrays.pop(), iteratee) : undefined;
          return unzipWith(arrays, iteratee);
        });
    
        /*------------------------------------------------------------------------*/
    
        /**
         * Creates a `lodash` wrapper instance that wraps `value` with explicit method
         * chain sequences enabled. The result of such sequences must be unwrapped
         * with `_#value`.
         *
         * @static
         * @memberOf _
         * @since 1.3.0
         * @category Seq
         * @param {*} value The value to wrap.
         * @returns {Object} Returns the new `lodash` wrapper instance.
         * @example
         *
         * var users = [
         *   { 'user': 'barney',  'age': 36 },
         *   { 'user': 'fred',    'age': 40 },
         *   { 'user': 'pebbles', 'age': 1 }
         * ];
         *
         * var youngest = _
         *   .chain(users)
         *   .sortBy('age')
         *   .map(function(o) {
         *     return o.user + ' is ' + o.age;
         *   })
         *   .head()
         *   .value();
         * // => 'pebbles is 1'
         */
        function chain(value) {
          var result = lodash(value);
          result.__chain__ = true;
          return result;
        }
    
        /**
         * This method invokes `interceptor` and returns `value`. The interceptor
         * is invoked with one argument; (value). The purpose of this method is to
         * "tap into" a method chain sequence in order to modify intermediate results.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Seq
         * @param {*} value The value to provide to `interceptor`.
         * @param {Function} interceptor The function to invoke.
         * @returns {*} Returns `value`.
         * @example
         *
         * _([1, 2, 3])
         *  .tap(function(array) {
         *    // Mutate input array.
         *    array.pop();
         *  })
         *  .reverse()
         *  .value();
         * // => [2, 1]
         */
        function tap(value, interceptor) {
          interceptor(value);
          return value;
        }
    
        /**
         * This method is like `_.tap` except that it returns the result of `interceptor`.
         * The purpose of this method is to "pass thru" values replacing intermediate
         * results in a method chain sequence.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Seq
         * @param {*} value The value to provide to `interceptor`.
         * @param {Function} interceptor The function to invoke.
         * @returns {*} Returns the result of `interceptor`.
         * @example
         *
         * _('  abc  ')
         *  .chain()
         *  .trim()
         *  .thru(function(value) {
         *    return [value];
         *  })
         *  .value();
         * // => ['abc']
         */
        function thru(value, interceptor) {
          return interceptor(value);
        }
    
        /**
         * This method is the wrapper version of `_.at`.
         *
         * @name at
         * @memberOf _
         * @since 1.0.0
         * @category Seq
         * @param {...(string|string[])} [paths] The property paths to pick.
         * @returns {Object} Returns the new `lodash` wrapper instance.
         * @example
         *
         * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };
         *
         * _(object).at(['a[0].b.c', 'a[1]']).value();
         * // => [3, 4]
         */
        var wrapperAt = flatRest(function(paths) {
          var length = paths.length,
              start = length ? paths[0] : 0,
              value = this.__wrapped__,
              interceptor = function(object) { return baseAt(object, paths); };
    
          if (length > 1 || this.__actions__.length ||
              !(value instanceof LazyWrapper) || !isIndex(start)) {
            return this.thru(interceptor);
          }
          value = value.slice(start, +start + (length ? 1 : 0));
          value.__actions__.push({
            'func': thru,
            'args': [interceptor],
            'thisArg': undefined
          });
          return new LodashWrapper(value, this.__chain__).thru(function(array) {
            if (length && !array.length) {
              array.push(undefined);
            }
            return array;
          });
        });
    
        /**
         * Creates a `lodash` wrapper instance with explicit method chain sequences enabled.
         *
         * @name chain
         * @memberOf _
         * @since 0.1.0
         * @category Seq
         * @returns {Object} Returns the new `lodash` wrapper instance.
         * @example
         *
         * var users = [
         *   { 'user': 'barney', 'age': 36 },
         *   { 'user': 'fred',   'age': 40 }
         * ];
         *
         * // A sequence without explicit chaining.
         * _(users).head();
         * // => { 'user': 'barney', 'age': 36 }
         *
         * // A sequence with explicit chaining.
         * _(users)
         *   .chain()
         *   .head()
         *   .pick('user')
         *   .value();
         * // => { 'user': 'barney' }
         */
        function wrapperChain() {
          return chain(this);
        }
    
        /**
         * Executes the chain sequence and returns the wrapped result.
         *
         * @name commit
         * @memberOf _
         * @since 3.2.0
         * @category Seq
         * @returns {Object} Returns the new `lodash` wrapper instance.
         * @example
         *
         * var array = [1, 2];
         * var wrapped = _(array).push(3);
         *
         * console.log(array);
         * // => [1, 2]
         *
         * wrapped = wrapped.commit();
         * console.log(array);
         * // => [1, 2, 3]
         *
         * wrapped.last();
         * // => 3
         *
         * console.log(array);
         * // => [1, 2, 3]
         */
        function wrapperCommit() {
          return new LodashWrapper(this.value(), this.__chain__);
        }
    
        /**
         * Gets the next value on a wrapped object following the
         * [iterator protocol](https://mdn.io/iteration_protocols#iterator).
         *
         * @name next
         * @memberOf _
         * @since 4.0.0
         * @category Seq
         * @returns {Object} Returns the next iterator value.
         * @example
         *
         * var wrapped = _([1, 2]);
         *
         * wrapped.next();
         * // => { 'done': false, 'value': 1 }
         *
         * wrapped.next();
         * // => { 'done': false, 'value': 2 }
         *
         * wrapped.next();
         * // => { 'done': true, 'value': undefined }
         */
        function wrapperNext() {
          if (this.__values__ === undefined) {
            this.__values__ = toArray(this.value());
          }
          var done = this.__index__ >= this.__values__.length,
              value = done ? undefined : this.__values__[this.__index__++];
    
          return { 'done': done, 'value': value };
        }
    
        /**
         * Enables the wrapper to be iterable.
         *
         * @name Symbol.iterator
         * @memberOf _
         * @since 4.0.0
         * @category Seq
         * @returns {Object} Returns the wrapper object.
         * @example
         *
         * var wrapped = _([1, 2]);
         *
         * wrapped[Symbol.iterator]() === wrapped;
         * // => true
         *
         * Array.from(wrapped);
         * // => [1, 2]
         */
        function wrapperToIterator() {
          return this;
        }
    
        /**
         * Creates a clone of the chain sequence planting `value` as the wrapped value.
         *
         * @name plant
         * @memberOf _
         * @since 3.2.0
         * @category Seq
         * @param {*} value The value to plant.
         * @returns {Object} Returns the new `lodash` wrapper instance.
         * @example
         *
         * function square(n) {
         *   return n * n;
         * }
         *
         * var wrapped = _([1, 2]).map(square);
         * var other = wrapped.plant([3, 4]);
         *
         * other.value();
         * // => [9, 16]
         *
         * wrapped.value();
         * // => [1, 4]
         */
        function wrapperPlant(value) {
          var result,
              parent = this;
    
          while (parent instanceof baseLodash) {
            var clone = wrapperClone(parent);
            clone.__index__ = 0;
            clone.__values__ = undefined;
            if (result) {
              previous.__wrapped__ = clone;
            } else {
              result = clone;
            }
            var previous = clone;
            parent = parent.__wrapped__;
          }
          previous.__wrapped__ = value;
          return result;
        }
    
        /**
         * This method is the wrapper version of `_.reverse`.
         *
         * **Note:** This method mutates the wrapped array.
         *
         * @name reverse
         * @memberOf _
         * @since 0.1.0
         * @category Seq
         * @returns {Object} Returns the new `lodash` wrapper instance.
         * @example
         *
         * var array = [1, 2, 3];
         *
         * _(array).reverse().value()
         * // => [3, 2, 1]
         *
         * console.log(array);
         * // => [3, 2, 1]
         */
        function wrapperReverse() {
          var value = this.__wrapped__;
          if (value instanceof LazyWrapper) {
            var wrapped = value;
            if (this.__actions__.length) {
              wrapped = new LazyWrapper(this);
            }
            wrapped = wrapped.reverse();
            wrapped.__actions__.push({
              'func': thru,
              'args': [reverse],
              'thisArg': undefined
            });
            return new LodashWrapper(wrapped, this.__chain__);
          }
          return this.thru(reverse);
        }
    
        /**
         * Executes the chain sequence to resolve the unwrapped value.
         *
         * @name value
         * @memberOf _
         * @since 0.1.0
         * @alias toJSON, valueOf
         * @category Seq
         * @returns {*} Returns the resolved unwrapped value.
         * @example
         *
         * _([1, 2, 3]).value();
         * // => [1, 2, 3]
         */
        function wrapperValue() {
          return baseWrapperValue(this.__wrapped__, this.__actions__);
        }
    
        /*------------------------------------------------------------------------*/
    
        /**
         * Creates an object composed of keys generated from the results of running
         * each element of `collection` thru `iteratee`. The corresponding value of
         * each key is the number of times the key was returned by `iteratee`. The
         * iteratee is invoked with one argument: (value).
         *
         * @static
         * @memberOf _
         * @since 0.5.0
         * @category Collection
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} [iteratee=_.identity] The iteratee to transform keys.
         * @returns {Object} Returns the composed aggregate object.
         * @example
         *
         * _.countBy([6.1, 4.2, 6.3], Math.floor);
         * // => { '4': 1, '6': 2 }
         *
         * // The `_.property` iteratee shorthand.
         * _.countBy(['one', 'two', 'three'], 'length');
         * // => { '3': 2, '5': 1 }
         */
        var countBy = createAggregator(function(result, value, key) {
          if (hasOwnProperty.call(result, key)) {
            ++result[key];
          } else {
            baseAssignValue(result, key, 1);
          }
        });
    
        /**
         * Checks if `predicate` returns truthy for **all** elements of `collection`.
         * Iteration is stopped once `predicate` returns falsey. The predicate is
         * invoked with three arguments: (value, index|key, collection).
         *
         * **Note:** This method returns `true` for
         * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because
         * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of
         * elements of empty collections.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Collection
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} [predicate=_.identity] The function invoked per iteration.
         * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
         * @returns {boolean} Returns `true` if all elements pass the predicate check,
         *  else `false`.
         * @example
         *
         * _.every([true, 1, null, 'yes'], Boolean);
         * // => false
         *
         * var users = [
         *   { 'user': 'barney', 'age': 36, 'active': false },
         *   { 'user': 'fred',   'age': 40, 'active': false }
         * ];
         *
         * // The `_.matches` iteratee shorthand.
         * _.every(users, { 'user': 'barney', 'active': false });
         * // => false
         *
         * // The `_.matchesProperty` iteratee shorthand.
         * _.every(users, ['active', false]);
         * // => true
         *
         * // The `_.property` iteratee shorthand.
         * _.every(users, 'active');
         * // => false
         */
        function every(collection, predicate, guard) {
          var func = isArray(collection) ? arrayEvery : baseEvery;
          if (guard && isIterateeCall(collection, predicate, guard)) {
            predicate = undefined;
          }
          return func(collection, getIteratee(predicate, 3));
        }
    
        /**
         * Iterates over elements of `collection`, returning an array of all elements
         * `predicate` returns truthy for. The predicate is invoked with three
         * arguments: (value, index|key, collection).
         *
         * **Note:** Unlike `_.remove`, this method returns a new array.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Collection
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} [predicate=_.identity] The function invoked per iteration.
         * @returns {Array} Returns the new filtered array.
         * @see _.reject
         * @example
         *
         * var users = [
         *   { 'user': 'barney', 'age': 36, 'active': true },
         *   { 'user': 'fred',   'age': 40, 'active': false }
         * ];
         *
         * _.filter(users, function(o) { return !o.active; });
         * // => objects for ['fred']
         *
         * // The `_.matches` iteratee shorthand.
         * _.filter(users, { 'age': 36, 'active': true });
         * // => objects for ['barney']
         *
         * // The `_.matchesProperty` iteratee shorthand.
         * _.filter(users, ['active', false]);
         * // => objects for ['fred']
         *
         * // The `_.property` iteratee shorthand.
         * _.filter(users, 'active');
         * // => objects for ['barney']
         */
        function filter(collection, predicate) {
          var func = isArray(collection) ? arrayFilter : baseFilter;
          return func(collection, getIteratee(predicate, 3));
        }
    
        /**
         * Iterates over elements of `collection`, returning the first element
         * `predicate` returns truthy for. The predicate is invoked with three
         * arguments: (value, index|key, collection).
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Collection
         * @param {Array|Object} collection The collection to inspect.
         * @param {Function} [predicate=_.identity] The function invoked per iteration.
         * @param {number} [fromIndex=0] The index to search from.
         * @returns {*} Returns the matched element, else `undefined`.
         * @example
         *
         * var users = [
         *   { 'user': 'barney',  'age': 36, 'active': true },
         *   { 'user': 'fred',    'age': 40, 'active': false },
         *   { 'user': 'pebbles', 'age': 1,  'active': true }
         * ];
         *
         * _.find(users, function(o) { return o.age < 40; });
         * // => object for 'barney'
         *
         * // The `_.matches` iteratee shorthand.
         * _.find(users, { 'age': 1, 'active': true });
         * // => object for 'pebbles'
         *
         * // The `_.matchesProperty` iteratee shorthand.
         * _.find(users, ['active', false]);
         * // => object for 'fred'
         *
         * // The `_.property` iteratee shorthand.
         * _.find(users, 'active');
         * // => object for 'barney'
         */
        var find = createFind(findIndex);
    
        /**
         * This method is like `_.find` except that it iterates over elements of
         * `collection` from right to left.
         *
         * @static
         * @memberOf _
         * @since 2.0.0
         * @category Collection
         * @param {Array|Object} collection The collection to inspect.
         * @param {Function} [predicate=_.identity] The function invoked per iteration.
         * @param {number} [fromIndex=collection.length-1] The index to search from.
         * @returns {*} Returns the matched element, else `undefined`.
         * @example
         *
         * _.findLast([1, 2, 3, 4], function(n) {
         *   return n % 2 == 1;
         * });
         * // => 3
         */
        var findLast = createFind(findLastIndex);
    
        /**
         * Creates a flattened array of values by running each element in `collection`
         * thru `iteratee` and flattening the mapped results. The iteratee is invoked
         * with three arguments: (value, index|key, collection).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Collection
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} [iteratee=_.identity] The function invoked per iteration.
         * @returns {Array} Returns the new flattened array.
         * @example
         *
         * function duplicate(n) {
         *   return [n, n];
         * }
         *
         * _.flatMap([1, 2], duplicate);
         * // => [1, 1, 2, 2]
         */
        function flatMap(collection, iteratee) {
          return baseFlatten(map(collection, iteratee), 1);
        }
    
        /**
         * This method is like `_.flatMap` except that it recursively flattens the
         * mapped results.
         *
         * @static
         * @memberOf _
         * @since 4.7.0
         * @category Collection
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} [iteratee=_.identity] The function invoked per iteration.
         * @returns {Array} Returns the new flattened array.
         * @example
         *
         * function duplicate(n) {
         *   return [[[n, n]]];
         * }
         *
         * _.flatMapDeep([1, 2], duplicate);
         * // => [1, 1, 2, 2]
         */
        function flatMapDeep(collection, iteratee) {
          return baseFlatten(map(collection, iteratee), INFINITY);
        }
    
        /**
         * This method is like `_.flatMap` except that it recursively flattens the
         * mapped results up to `depth` times.
         *
         * @static
         * @memberOf _
         * @since 4.7.0
         * @category Collection
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} [iteratee=_.identity] The function invoked per iteration.
         * @param {number} [depth=1] The maximum recursion depth.
         * @returns {Array} Returns the new flattened array.
         * @example
         *
         * function duplicate(n) {
         *   return [[[n, n]]];
         * }
         *
         * _.flatMapDepth([1, 2], duplicate, 2);
         * // => [[1, 1], [2, 2]]
         */
        function flatMapDepth(collection, iteratee, depth) {
          depth = depth === undefined ? 1 : toInteger(depth);
          return baseFlatten(map(collection, iteratee), depth);
        }
    
        /**
         * Iterates over elements of `collection` and invokes `iteratee` for each element.
         * The iteratee is invoked with three arguments: (value, index|key, collection).
         * Iteratee functions may exit iteration early by explicitly returning `false`.
         *
         * **Note:** As with other "Collections" methods, objects with a "length"
         * property are iterated like arrays. To avoid this behavior use `_.forIn`
         * or `_.forOwn` for object iteration.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @alias each
         * @category Collection
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} [iteratee=_.identity] The function invoked per iteration.
         * @returns {Array|Object} Returns `collection`.
         * @see _.forEachRight
         * @example
         *
         * _.forEach([1, 2], function(value) {
         *   console.log(value);
         * });
         * // => Logs `1` then `2`.
         *
         * _.forEach({ 'a': 1, 'b': 2 }, function(value, key) {
         *   console.log(key);
         * });
         * // => Logs 'a' then 'b' (iteration order is not guaranteed).
         */
        function forEach(collection, iteratee) {
          var func = isArray(collection) ? arrayEach : baseEach;
          return func(collection, getIteratee(iteratee, 3));
        }
    
        /**
         * This method is like `_.forEach` except that it iterates over elements of
         * `collection` from right to left.
         *
         * @static
         * @memberOf _
         * @since 2.0.0
         * @alias eachRight
         * @category Collection
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} [iteratee=_.identity] The function invoked per iteration.
         * @returns {Array|Object} Returns `collection`.
         * @see _.forEach
         * @example
         *
         * _.forEachRight([1, 2], function(value) {
         *   console.log(value);
         * });
         * // => Logs `2` then `1`.
         */
        function forEachRight(collection, iteratee) {
          var func = isArray(collection) ? arrayEachRight : baseEachRight;
          return func(collection, getIteratee(iteratee, 3));
        }
    
        /**
         * Creates an object composed of keys generated from the results of running
         * each element of `collection` thru `iteratee`. The order of grouped values
         * is determined by the order they occur in `collection`. The corresponding
         * value of each key is an array of elements responsible for generating the
         * key. The iteratee is invoked with one argument: (value).
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Collection
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} [iteratee=_.identity] The iteratee to transform keys.
         * @returns {Object} Returns the composed aggregate object.
         * @example
         *
         * _.groupBy([6.1, 4.2, 6.3], Math.floor);
         * // => { '4': [4.2], '6': [6.1, 6.3] }
         *
         * // The `_.property` iteratee shorthand.
         * _.groupBy(['one', 'two', 'three'], 'length');
         * // => { '3': ['one', 'two'], '5': ['three'] }
         */
        var groupBy = createAggregator(function(result, value, key) {
          if (hasOwnProperty.call(result, key)) {
            result[key].push(value);
          } else {
            baseAssignValue(result, key, [value]);
          }
        });
    
        /**
         * Checks if `value` is in `collection`. If `collection` is a string, it's
         * checked for a substring of `value`, otherwise
         * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
         * is used for equality comparisons. If `fromIndex` is negative, it's used as
         * the offset from the end of `collection`.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Collection
         * @param {Array|Object|string} collection The collection to inspect.
         * @param {*} value The value to search for.
         * @param {number} [fromIndex=0] The index to search from.
         * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.
         * @returns {boolean} Returns `true` if `value` is found, else `false`.
         * @example
         *
         * _.includes([1, 2, 3], 1);
         * // => true
         *
         * _.includes([1, 2, 3], 1, 2);
         * // => false
         *
         * _.includes({ 'a': 1, 'b': 2 }, 1);
         * // => true
         *
         * _.includes('abcd', 'bc');
         * // => true
         */
        function includes(collection, value, fromIndex, guard) {
          collection = isArrayLike(collection) ? collection : values(collection);
          fromIndex = (fromIndex && !guard) ? toInteger(fromIndex) : 0;
    
          var length = collection.length;
          if (fromIndex < 0) {
            fromIndex = nativeMax(length + fromIndex, 0);
          }
          return isString(collection)
            ? (fromIndex <= length && collection.indexOf(value, fromIndex) > -1)
            : (!!length && baseIndexOf(collection, value, fromIndex) > -1);
        }
    
        /**
         * Invokes the method at `path` of each element in `collection`, returning
         * an array of the results of each invoked method. Any additional arguments
         * are provided to each invoked method. If `path` is a function, it's invoked
         * for, and `this` bound to, each element in `collection`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Collection
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Array|Function|string} path The path of the method to invoke or
         *  the function invoked per iteration.
         * @param {...*} [args] The arguments to invoke each method with.
         * @returns {Array} Returns the array of results.
         * @example
         *
         * _.invokeMap([[5, 1, 7], [3, 2, 1]], 'sort');
         * // => [[1, 5, 7], [1, 2, 3]]
         *
         * _.invokeMap([123, 456], String.prototype.split, '');
         * // => [['1', '2', '3'], ['4', '5', '6']]
         */
        var invokeMap = baseRest(function(collection, path, args) {
          var index = -1,
              isFunc = typeof path == 'function',
              result = isArrayLike(collection) ? Array(collection.length) : [];
    
          baseEach(collection, function(value) {
            result[++index] = isFunc ? apply(path, value, args) : baseInvoke(value, path, args);
          });
          return result;
        });
    
        /**
         * Creates an object composed of keys generated from the results of running
         * each element of `collection` thru `iteratee`. The corresponding value of
         * each key is the last element responsible for generating the key. The
         * iteratee is invoked with one argument: (value).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Collection
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} [iteratee=_.identity] The iteratee to transform keys.
         * @returns {Object} Returns the composed aggregate object.
         * @example
         *
         * var array = [
         *   { 'dir': 'left', 'code': 97 },
         *   { 'dir': 'right', 'code': 100 }
         * ];
         *
         * _.keyBy(array, function(o) {
         *   return String.fromCharCode(o.code);
         * });
         * // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } }
         *
         * _.keyBy(array, 'dir');
         * // => { 'left': { 'dir': 'left', 'code': 97 }, 'right': { 'dir': 'right', 'code': 100 } }
         */
        var keyBy = createAggregator(function(result, value, key) {
          baseAssignValue(result, key, value);
        });
    
        /**
         * Creates an array of values by running each element in `collection` thru
         * `iteratee`. The iteratee is invoked with three arguments:
         * (value, index|key, collection).
         *
         * Many lodash methods are guarded to work as iteratees for methods like
         * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`.
         *
         * The guarded methods are:
         * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`,
         * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`,
         * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`,
         * `template`, `trim`, `trimEnd`, `trimStart`, and `words`
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Collection
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} [iteratee=_.identity] The function invoked per iteration.
         * @returns {Array} Returns the new mapped array.
         * @example
         *
         * function square(n) {
         *   return n * n;
         * }
         *
         * _.map([4, 8], square);
         * // => [16, 64]
         *
         * _.map({ 'a': 4, 'b': 8 }, square);
         * // => [16, 64] (iteration order is not guaranteed)
         *
         * var users = [
         *   { 'user': 'barney' },
         *   { 'user': 'fred' }
         * ];
         *
         * // The `_.property` iteratee shorthand.
         * _.map(users, 'user');
         * // => ['barney', 'fred']
         */
        function map(collection, iteratee) {
          var func = isArray(collection) ? arrayMap : baseMap;
          return func(collection, getIteratee(iteratee, 3));
        }
    
        /**
         * This method is like `_.sortBy` except that it allows specifying the sort
         * orders of the iteratees to sort by. If `orders` is unspecified, all values
         * are sorted in ascending order. Otherwise, specify an order of "desc" for
         * descending or "asc" for ascending sort order of corresponding values.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Collection
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Array[]|Function[]|Object[]|string[]} [iteratees=[_.identity]]
         *  The iteratees to sort by.
         * @param {string[]} [orders] The sort orders of `iteratees`.
         * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.
         * @returns {Array} Returns the new sorted array.
         * @example
         *
         * var users = [
         *   { 'user': 'fred',   'age': 48 },
         *   { 'user': 'barney', 'age': 34 },
         *   { 'user': 'fred',   'age': 40 },
         *   { 'user': 'barney', 'age': 36 }
         * ];
         *
         * // Sort by `user` in ascending order and by `age` in descending order.
         * _.orderBy(users, ['user', 'age'], ['asc', 'desc']);
         * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]]
         */
        function orderBy(collection, iteratees, orders, guard) {
          if (collection == null) {
            return [];
          }
          if (!isArray(iteratees)) {
            iteratees = iteratees == null ? [] : [iteratees];
          }
          orders = guard ? undefined : orders;
          if (!isArray(orders)) {
            orders = orders == null ? [] : [orders];
          }
          return baseOrderBy(collection, iteratees, orders);
        }
    
        /**
         * Creates an array of elements split into two groups, the first of which
         * contains elements `predicate` returns truthy for, the second of which
         * contains elements `predicate` returns falsey for. The predicate is
         * invoked with one argument: (value).
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Collection
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} [predicate=_.identity] The function invoked per iteration.
         * @returns {Array} Returns the array of grouped elements.
         * @example
         *
         * var users = [
         *   { 'user': 'barney',  'age': 36, 'active': false },
         *   { 'user': 'fred',    'age': 40, 'active': true },
         *   { 'user': 'pebbles', 'age': 1,  'active': false }
         * ];
         *
         * _.partition(users, function(o) { return o.active; });
         * // => objects for [['fred'], ['barney', 'pebbles']]
         *
         * // The `_.matches` iteratee shorthand.
         * _.partition(users, { 'age': 1, 'active': false });
         * // => objects for [['pebbles'], ['barney', 'fred']]
         *
         * // The `_.matchesProperty` iteratee shorthand.
         * _.partition(users, ['active', false]);
         * // => objects for [['barney', 'pebbles'], ['fred']]
         *
         * // The `_.property` iteratee shorthand.
         * _.partition(users, 'active');
         * // => objects for [['fred'], ['barney', 'pebbles']]
         */
        var partition = createAggregator(function(result, value, key) {
          result[key ? 0 : 1].push(value);
        }, function() { return [[], []]; });
    
        /**
         * Reduces `collection` to a value which is the accumulated result of running
         * each element in `collection` thru `iteratee`, where each successive
         * invocation is supplied the return value of the previous. If `accumulator`
         * is not given, the first element of `collection` is used as the initial
         * value. The iteratee is invoked with four arguments:
         * (accumulator, value, index|key, collection).
         *
         * Many lodash methods are guarded to work as iteratees for methods like
         * `_.reduce`, `_.reduceRight`, and `_.transform`.
         *
         * The guarded methods are:
         * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`,
         * and `sortBy`
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Collection
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} [iteratee=_.identity] The function invoked per iteration.
         * @param {*} [accumulator] The initial value.
         * @returns {*} Returns the accumulated value.
         * @see _.reduceRight
         * @example
         *
         * _.reduce([1, 2], function(sum, n) {
         *   return sum + n;
         * }, 0);
         * // => 3
         *
         * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {
         *   (result[value] || (result[value] = [])).push(key);
         *   return result;
         * }, {});
         * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed)
         */
        function reduce(collection, iteratee, accumulator) {
          var func = isArray(collection) ? arrayReduce : baseReduce,
              initAccum = arguments.length < 3;
    
          return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEach);
        }
    
        /**
         * This method is like `_.reduce` except that it iterates over elements of
         * `collection` from right to left.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Collection
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} [iteratee=_.identity] The function invoked per iteration.
         * @param {*} [accumulator] The initial value.
         * @returns {*} Returns the accumulated value.
         * @see _.reduce
         * @example
         *
         * var array = [[0, 1], [2, 3], [4, 5]];
         *
         * _.reduceRight(array, function(flattened, other) {
         *   return flattened.concat(other);
         * }, []);
         * // => [4, 5, 2, 3, 0, 1]
         */
        function reduceRight(collection, iteratee, accumulator) {
          var func = isArray(collection) ? arrayReduceRight : baseReduce,
              initAccum = arguments.length < 3;
    
          return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEachRight);
        }
    
        /**
         * The opposite of `_.filter`; this method returns the elements of `collection`
         * that `predicate` does **not** return truthy for.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Collection
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} [predicate=_.identity] The function invoked per iteration.
         * @returns {Array} Returns the new filtered array.
         * @see _.filter
         * @example
         *
         * var users = [
         *   { 'user': 'barney', 'age': 36, 'active': false },
         *   { 'user': 'fred',   'age': 40, 'active': true }
         * ];
         *
         * _.reject(users, function(o) { return !o.active; });
         * // => objects for ['fred']
         *
         * // The `_.matches` iteratee shorthand.
         * _.reject(users, { 'age': 40, 'active': true });
         * // => objects for ['barney']
         *
         * // The `_.matchesProperty` iteratee shorthand.
         * _.reject(users, ['active', false]);
         * // => objects for ['fred']
         *
         * // The `_.property` iteratee shorthand.
         * _.reject(users, 'active');
         * // => objects for ['barney']
         */
        function reject(collection, predicate) {
          var func = isArray(collection) ? arrayFilter : baseFilter;
          return func(collection, negate(getIteratee(predicate, 3)));
        }
    
        /**
         * Gets a random element from `collection`.
         *
         * @static
         * @memberOf _
         * @since 2.0.0
         * @category Collection
         * @param {Array|Object} collection The collection to sample.
         * @returns {*} Returns the random element.
         * @example
         *
         * _.sample([1, 2, 3, 4]);
         * // => 2
         */
        function sample(collection) {
          var func = isArray(collection) ? arraySample : baseSample;
          return func(collection);
        }
    
        /**
         * Gets `n` random elements at unique keys from `collection` up to the
         * size of `collection`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Collection
         * @param {Array|Object} collection The collection to sample.
         * @param {number} [n=1] The number of elements to sample.
         * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
         * @returns {Array} Returns the random elements.
         * @example
         *
         * _.sampleSize([1, 2, 3], 2);
         * // => [3, 1]
         *
         * _.sampleSize([1, 2, 3], 4);
         * // => [2, 3, 1]
         */
        function sampleSize(collection, n, guard) {
          if ((guard ? isIterateeCall(collection, n, guard) : n === undefined)) {
            n = 1;
          } else {
            n = toInteger(n);
          }
          var func = isArray(collection) ? arraySampleSize : baseSampleSize;
          return func(collection, n);
        }
    
        /**
         * Creates an array of shuffled values, using a version of the
         * [Fisher-Yates shuffle](https://en.wikipedia.org/wiki/Fisher-Yates_shuffle).
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Collection
         * @param {Array|Object} collection The collection to shuffle.
         * @returns {Array} Returns the new shuffled array.
         * @example
         *
         * _.shuffle([1, 2, 3, 4]);
         * // => [4, 1, 3, 2]
         */
        function shuffle(collection) {
          var func = isArray(collection) ? arrayShuffle : baseShuffle;
          return func(collection);
        }
    
        /**
         * Gets the size of `collection` by returning its length for array-like
         * values or the number of own enumerable string keyed properties for objects.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Collection
         * @param {Array|Object|string} collection The collection to inspect.
         * @returns {number} Returns the collection size.
         * @example
         *
         * _.size([1, 2, 3]);
         * // => 3
         *
         * _.size({ 'a': 1, 'b': 2 });
         * // => 2
         *
         * _.size('pebbles');
         * // => 7
         */
        function size(collection) {
          if (collection == null) {
            return 0;
          }
          if (isArrayLike(collection)) {
            return isString(collection) ? stringSize(collection) : collection.length;
          }
          var tag = getTag(collection);
          if (tag == mapTag || tag == setTag) {
            return collection.size;
          }
          return baseKeys(collection).length;
        }
    
        /**
         * Checks if `predicate` returns truthy for **any** element of `collection`.
         * Iteration is stopped once `predicate` returns truthy. The predicate is
         * invoked with three arguments: (value, index|key, collection).
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Collection
         * @param {Array|Object} collection The collection to iterate over.
         * @param {Function} [predicate=_.identity] The function invoked per iteration.
         * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
         * @returns {boolean} Returns `true` if any element passes the predicate check,
         *  else `false`.
         * @example
         *
         * _.some([null, 0, 'yes', false], Boolean);
         * // => true
         *
         * var users = [
         *   { 'user': 'barney', 'active': true },
         *   { 'user': 'fred',   'active': false }
         * ];
         *
         * // The `_.matches` iteratee shorthand.
         * _.some(users, { 'user': 'barney', 'active': false });
         * // => false
         *
         * // The `_.matchesProperty` iteratee shorthand.
         * _.some(users, ['active', false]);
         * // => true
         *
         * // The `_.property` iteratee shorthand.
         * _.some(users, 'active');
         * // => true
         */
        function some(collection, predicate, guard) {
          var func = isArray(collection) ? arraySome : baseSome;
          if (guard && isIterateeCall(collection, predicate, guard)) {
            predicate = undefined;
          }
          return func(collection, getIteratee(predicate, 3));
        }
    
        /**
         * Creates an array of elements, sorted in ascending order by the results of
         * running each element in a collection thru each iteratee. This method
         * performs a stable sort, that is, it preserves the original sort order of
         * equal elements. The iteratees are invoked with one argument: (value).
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Collection
         * @param {Array|Object} collection The collection to iterate over.
         * @param {...(Function|Function[])} [iteratees=[_.identity]]
         *  The iteratees to sort by.
         * @returns {Array} Returns the new sorted array.
         * @example
         *
         * var users = [
         *   { 'user': 'fred',   'age': 48 },
         *   { 'user': 'barney', 'age': 36 },
         *   { 'user': 'fred',   'age': 40 },
         *   { 'user': 'barney', 'age': 34 }
         * ];
         *
         * _.sortBy(users, [function(o) { return o.user; }]);
         * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]]
         *
         * _.sortBy(users, ['user', 'age']);
         * // => objects for [['barney', 34], ['barney', 36], ['fred', 40], ['fred', 48]]
         */
        var sortBy = baseRest(function(collection, iteratees) {
          if (collection == null) {
            return [];
          }
          var length = iteratees.length;
          if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) {
            iteratees = [];
          } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) {
            iteratees = [iteratees[0]];
          }
          return baseOrderBy(collection, baseFlatten(iteratees, 1), []);
        });
    
        /*------------------------------------------------------------------------*/
    
        /**
         * Gets the timestamp of the number of milliseconds that have elapsed since
         * the Unix epoch (1 January 1970 00:00:00 UTC).
         *
         * @static
         * @memberOf _
         * @since 2.4.0
         * @category Date
         * @returns {number} Returns the timestamp.
         * @example
         *
         * _.defer(function(stamp) {
         *   console.log(_.now() - stamp);
         * }, _.now());
         * // => Logs the number of milliseconds it took for the deferred invocation.
         */
        var now = ctxNow || function() {
          return root.Date.now();
        };
    
        /*------------------------------------------------------------------------*/
    
        /**
         * The opposite of `_.before`; this method creates a function that invokes
         * `func` once it's called `n` or more times.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Function
         * @param {number} n The number of calls before `func` is invoked.
         * @param {Function} func The function to restrict.
         * @returns {Function} Returns the new restricted function.
         * @example
         *
         * var saves = ['profile', 'settings'];
         *
         * var done = _.after(saves.length, function() {
         *   console.log('done saving!');
         * });
         *
         * _.forEach(saves, function(type) {
         *   asyncSave({ 'type': type, 'complete': done });
         * });
         * // => Logs 'done saving!' after the two async saves have completed.
         */
        function after(n, func) {
          if (typeof func != 'function') {
            throw new TypeError(FUNC_ERROR_TEXT);
          }
          n = toInteger(n);
          return function() {
            if (--n < 1) {
              return func.apply(this, arguments);
            }
          };
        }
    
        /**
         * Creates a function that invokes `func`, with up to `n` arguments,
         * ignoring any additional arguments.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Function
         * @param {Function} func The function to cap arguments for.
         * @param {number} [n=func.length] The arity cap.
         * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
         * @returns {Function} Returns the new capped function.
         * @example
         *
         * _.map(['6', '8', '10'], _.ary(parseInt, 1));
         * // => [6, 8, 10]
         */
        function ary(func, n, guard) {
          n = guard ? undefined : n;
          n = (func && n == null) ? func.length : n;
          return createWrap(func, WRAP_ARY_FLAG, undefined, undefined, undefined, undefined, n);
        }
    
        /**
         * Creates a function that invokes `func`, with the `this` binding and arguments
         * of the created function, while it's called less than `n` times. Subsequent
         * calls to the created function return the result of the last `func` invocation.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Function
         * @param {number} n The number of calls at which `func` is no longer invoked.
         * @param {Function} func The function to restrict.
         * @returns {Function} Returns the new restricted function.
         * @example
         *
         * jQuery(element).on('click', _.before(5, addContactToList));
         * // => Allows adding up to 4 contacts to the list.
         */
        function before(n, func) {
          var result;
          if (typeof func != 'function') {
            throw new TypeError(FUNC_ERROR_TEXT);
          }
          n = toInteger(n);
          return function() {
            if (--n > 0) {
              result = func.apply(this, arguments);
            }
            if (n <= 1) {
              func = undefined;
            }
            return result;
          };
        }
    
        /**
         * Creates a function that invokes `func` with the `this` binding of `thisArg`
         * and `partials` prepended to the arguments it receives.
         *
         * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds,
         * may be used as a placeholder for partially applied arguments.
         *
         * **Note:** Unlike native `Function#bind`, this method doesn't set the "length"
         * property of bound functions.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Function
         * @param {Function} func The function to bind.
         * @param {*} thisArg The `this` binding of `func`.
         * @param {...*} [partials] The arguments to be partially applied.
         * @returns {Function} Returns the new bound function.
         * @example
         *
         * function greet(greeting, punctuation) {
         *   return greeting + ' ' + this.user + punctuation;
         * }
         *
         * var object = { 'user': 'fred' };
         *
         * var bound = _.bind(greet, object, 'hi');
         * bound('!');
         * // => 'hi fred!'
         *
         * // Bound with placeholders.
         * var bound = _.bind(greet, object, _, '!');
         * bound('hi');
         * // => 'hi fred!'
         */
        var bind = baseRest(function(func, thisArg, partials) {
          var bitmask = WRAP_BIND_FLAG;
          if (partials.length) {
            var holders = replaceHolders(partials, getHolder(bind));
            bitmask |= WRAP_PARTIAL_FLAG;
          }
          return createWrap(func, bitmask, thisArg, partials, holders);
        });
    
        /**
         * Creates a function that invokes the method at `object[key]` with `partials`
         * prepended to the arguments it receives.
         *
         * This method differs from `_.bind` by allowing bound functions to reference
         * methods that may be redefined or don't yet exist. See
         * [Peter Michaux's article](http://peter.michaux.ca/articles/lazy-function-definition-pattern)
         * for more details.
         *
         * The `_.bindKey.placeholder` value, which defaults to `_` in monolithic
         * builds, may be used as a placeholder for partially applied arguments.
         *
         * @static
         * @memberOf _
         * @since 0.10.0
         * @category Function
         * @param {Object} object The object to invoke the method on.
         * @param {string} key The key of the method.
         * @param {...*} [partials] The arguments to be partially applied.
         * @returns {Function} Returns the new bound function.
         * @example
         *
         * var object = {
         *   'user': 'fred',
         *   'greet': function(greeting, punctuation) {
         *     return greeting + ' ' + this.user + punctuation;
         *   }
         * };
         *
         * var bound = _.bindKey(object, 'greet', 'hi');
         * bound('!');
         * // => 'hi fred!'
         *
         * object.greet = function(greeting, punctuation) {
         *   return greeting + 'ya ' + this.user + punctuation;
         * };
         *
         * bound('!');
         * // => 'hiya fred!'
         *
         * // Bound with placeholders.
         * var bound = _.bindKey(object, 'greet', _, '!');
         * bound('hi');
         * // => 'hiya fred!'
         */
        var bindKey = baseRest(function(object, key, partials) {
          var bitmask = WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG;
          if (partials.length) {
            var holders = replaceHolders(partials, getHolder(bindKey));
            bitmask |= WRAP_PARTIAL_FLAG;
          }
          return createWrap(key, bitmask, object, partials, holders);
        });
    
        /**
         * Creates a function that accepts arguments of `func` and either invokes
         * `func` returning its result, if at least `arity` number of arguments have
         * been provided, or returns a function that accepts the remaining `func`
         * arguments, and so on. The arity of `func` may be specified if `func.length`
         * is not sufficient.
         *
         * The `_.curry.placeholder` value, which defaults to `_` in monolithic builds,
         * may be used as a placeholder for provided arguments.
         *
         * **Note:** This method doesn't set the "length" property of curried functions.
         *
         * @static
         * @memberOf _
         * @since 2.0.0
         * @category Function
         * @param {Function} func The function to curry.
         * @param {number} [arity=func.length] The arity of `func`.
         * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
         * @returns {Function} Returns the new curried function.
         * @example
         *
         * var abc = function(a, b, c) {
         *   return [a, b, c];
         * };
         *
         * var curried = _.curry(abc);
         *
         * curried(1)(2)(3);
         * // => [1, 2, 3]
         *
         * curried(1, 2)(3);
         * // => [1, 2, 3]
         *
         * curried(1, 2, 3);
         * // => [1, 2, 3]
         *
         * // Curried with placeholders.
         * curried(1)(_, 3)(2);
         * // => [1, 2, 3]
         */
        function curry(func, arity, guard) {
          arity = guard ? undefined : arity;
          var result = createWrap(func, WRAP_CURRY_FLAG, undefined, undefined, undefined, undefined, undefined, arity);
          result.placeholder = curry.placeholder;
          return result;
        }
    
        /**
         * This method is like `_.curry` except that arguments are applied to `func`
         * in the manner of `_.partialRight` instead of `_.partial`.
         *
         * The `_.curryRight.placeholder` value, which defaults to `_` in monolithic
         * builds, may be used as a placeholder for provided arguments.
         *
         * **Note:** This method doesn't set the "length" property of curried functions.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Function
         * @param {Function} func The function to curry.
         * @param {number} [arity=func.length] The arity of `func`.
         * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
         * @returns {Function} Returns the new curried function.
         * @example
         *
         * var abc = function(a, b, c) {
         *   return [a, b, c];
         * };
         *
         * var curried = _.curryRight(abc);
         *
         * curried(3)(2)(1);
         * // => [1, 2, 3]
         *
         * curried(2, 3)(1);
         * // => [1, 2, 3]
         *
         * curried(1, 2, 3);
         * // => [1, 2, 3]
         *
         * // Curried with placeholders.
         * curried(3)(1, _)(2);
         * // => [1, 2, 3]
         */
        function curryRight(func, arity, guard) {
          arity = guard ? undefined : arity;
          var result = createWrap(func, WRAP_CURRY_RIGHT_FLAG, undefined, undefined, undefined, undefined, undefined, arity);
          result.placeholder = curryRight.placeholder;
          return result;
        }
    
        /**
         * Creates a debounced function that delays invoking `func` until after `wait`
         * milliseconds have elapsed since the last time the debounced function was
         * invoked. The debounced function comes with a `cancel` method to cancel
         * delayed `func` invocations and a `flush` method to immediately invoke them.
         * Provide `options` to indicate whether `func` should be invoked on the
         * leading and/or trailing edge of the `wait` timeout. The `func` is invoked
         * with the last arguments provided to the debounced function. Subsequent
         * calls to the debounced function return the result of the last `func`
         * invocation.
         *
         * **Note:** If `leading` and `trailing` options are `true`, `func` is
         * invoked on the trailing edge of the timeout only if the debounced function
         * is invoked more than once during the `wait` timeout.
         *
         * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred
         * until to the next tick, similar to `setTimeout` with a timeout of `0`.
         *
         * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)
         * for details over the differences between `_.debounce` and `_.throttle`.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Function
         * @param {Function} func The function to debounce.
         * @param {number} [wait=0] The number of milliseconds to delay.
         * @param {Object} [options={}] The options object.
         * @param {boolean} [options.leading=false]
         *  Specify invoking on the leading edge of the timeout.
         * @param {number} [options.maxWait]
         *  The maximum time `func` is allowed to be delayed before it's invoked.
         * @param {boolean} [options.trailing=true]
         *  Specify invoking on the trailing edge of the timeout.
         * @returns {Function} Returns the new debounced function.
         * @example
         *
         * // Avoid costly calculations while the window size is in flux.
         * jQuery(window).on('resize', _.debounce(calculateLayout, 150));
         *
         * // Invoke `sendMail` when clicked, debouncing subsequent calls.
         * jQuery(element).on('click', _.debounce(sendMail, 300, {
         *   'leading': true,
         *   'trailing': false
         * }));
         *
         * // Ensure `batchLog` is invoked once after 1 second of debounced calls.
         * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 });
         * var source = new EventSource('/stream');
         * jQuery(source).on('message', debounced);
         *
         * // Cancel the trailing debounced invocation.
         * jQuery(window).on('popstate', debounced.cancel);
         */
        function debounce(func, wait, options) {
          var lastArgs,
              lastThis,
              maxWait,
              result,
              timerId,
              lastCallTime,
              lastInvokeTime = 0,
              leading = false,
              maxing = false,
              trailing = true;
    
          if (typeof func != 'function') {
            throw new TypeError(FUNC_ERROR_TEXT);
          }
          wait = toNumber(wait) || 0;
          if (isObject(options)) {
            leading = !!options.leading;
            maxing = 'maxWait' in options;
            maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait;
            trailing = 'trailing' in options ? !!options.trailing : trailing;
          }
    
          function invokeFunc(time) {
            var args = lastArgs,
                thisArg = lastThis;
    
            lastArgs = lastThis = undefined;
            lastInvokeTime = time;
            result = func.apply(thisArg, args);
            return result;
          }
    
          function leadingEdge(time) {
            // Reset any `maxWait` timer.
            lastInvokeTime = time;
            // Start the timer for the trailing edge.
            timerId = setTimeout(timerExpired, wait);
            // Invoke the leading edge.
            return leading ? invokeFunc(time) : result;
          }
    
          function remainingWait(time) {
            var timeSinceLastCall = time - lastCallTime,
                timeSinceLastInvoke = time - lastInvokeTime,
                timeWaiting = wait - timeSinceLastCall;
    
            return maxing
              ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke)
              : timeWaiting;
          }
    
          function shouldInvoke(time) {
            var timeSinceLastCall = time - lastCallTime,
                timeSinceLastInvoke = time - lastInvokeTime;
    
            // Either this is the first call, activity has stopped and we're at the
            // trailing edge, the system time has gone backwards and we're treating
            // it as the trailing edge, or we've hit the `maxWait` limit.
            return (lastCallTime === undefined || (timeSinceLastCall >= wait) ||
              (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait));
          }
    
          function timerExpired() {
            var time = now();
            if (shouldInvoke(time)) {
              return trailingEdge(time);
            }
            // Restart the timer.
            timerId = setTimeout(timerExpired, remainingWait(time));
          }
    
          function trailingEdge(time) {
            timerId = undefined;
    
            // Only invoke if we have `lastArgs` which means `func` has been
            // debounced at least once.
            if (trailing && lastArgs) {
              return invokeFunc(time);
            }
            lastArgs = lastThis = undefined;
            return result;
          }
    
          function cancel() {
            if (timerId !== undefined) {
              clearTimeout(timerId);
            }
            lastInvokeTime = 0;
            lastArgs = lastCallTime = lastThis = timerId = undefined;
          }
    
          function flush() {
            return timerId === undefined ? result : trailingEdge(now());
          }
    
          function debounced() {
            var time = now(),
                isInvoking = shouldInvoke(time);
    
            lastArgs = arguments;
            lastThis = this;
            lastCallTime = time;
    
            if (isInvoking) {
              if (timerId === undefined) {
                return leadingEdge(lastCallTime);
              }
              if (maxing) {
                // Handle invocations in a tight loop.
                clearTimeout(timerId);
                timerId = setTimeout(timerExpired, wait);
                return invokeFunc(lastCallTime);
              }
            }
            if (timerId === undefined) {
              timerId = setTimeout(timerExpired, wait);
            }
            return result;
          }
          debounced.cancel = cancel;
          debounced.flush = flush;
          return debounced;
        }
    
        /**
         * Defers invoking the `func` until the current call stack has cleared. Any
         * additional arguments are provided to `func` when it's invoked.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Function
         * @param {Function} func The function to defer.
         * @param {...*} [args] The arguments to invoke `func` with.
         * @returns {number} Returns the timer id.
         * @example
         *
         * _.defer(function(text) {
         *   console.log(text);
         * }, 'deferred');
         * // => Logs 'deferred' after one millisecond.
         */
        var defer = baseRest(function(func, args) {
          return baseDelay(func, 1, args);
        });
    
        /**
         * Invokes `func` after `wait` milliseconds. Any additional arguments are
         * provided to `func` when it's invoked.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Function
         * @param {Function} func The function to delay.
         * @param {number} wait The number of milliseconds to delay invocation.
         * @param {...*} [args] The arguments to invoke `func` with.
         * @returns {number} Returns the timer id.
         * @example
         *
         * _.delay(function(text) {
         *   console.log(text);
         * }, 1000, 'later');
         * // => Logs 'later' after one second.
         */
        var delay = baseRest(function(func, wait, args) {
          return baseDelay(func, toNumber(wait) || 0, args);
        });
    
        /**
         * Creates a function that invokes `func` with arguments reversed.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Function
         * @param {Function} func The function to flip arguments for.
         * @returns {Function} Returns the new flipped function.
         * @example
         *
         * var flipped = _.flip(function() {
         *   return _.toArray(arguments);
         * });
         *
         * flipped('a', 'b', 'c', 'd');
         * // => ['d', 'c', 'b', 'a']
         */
        function flip(func) {
          return createWrap(func, WRAP_FLIP_FLAG);
        }
    
        /**
         * Creates a function that memoizes the result of `func`. If `resolver` is
         * provided, it determines the cache key for storing the result based on the
         * arguments provided to the memoized function. By default, the first argument
         * provided to the memoized function is used as the map cache key. The `func`
         * is invoked with the `this` binding of the memoized function.
         *
         * **Note:** The cache is exposed as the `cache` property on the memoized
         * function. Its creation may be customized by replacing the `_.memoize.Cache`
         * constructor with one whose instances implement the
         * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object)
         * method interface of `clear`, `delete`, `get`, `has`, and `set`.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Function
         * @param {Function} func The function to have its output memoized.
         * @param {Function} [resolver] The function to resolve the cache key.
         * @returns {Function} Returns the new memoized function.
         * @example
         *
         * var object = { 'a': 1, 'b': 2 };
         * var other = { 'c': 3, 'd': 4 };
         *
         * var values = _.memoize(_.values);
         * values(object);
         * // => [1, 2]
         *
         * values(other);
         * // => [3, 4]
         *
         * object.a = 2;
         * values(object);
         * // => [1, 2]
         *
         * // Modify the result cache.
         * values.cache.set(object, ['a', 'b']);
         * values(object);
         * // => ['a', 'b']
         *
         * // Replace `_.memoize.Cache`.
         * _.memoize.Cache = WeakMap;
         */
        function memoize(func, resolver) {
          if (typeof func != 'function' || (resolver != null && typeof resolver != 'function')) {
            throw new TypeError(FUNC_ERROR_TEXT);
          }
          var memoized = function() {
            var args = arguments,
                key = resolver ? resolver.apply(this, args) : args[0],
                cache = memoized.cache;
    
            if (cache.has(key)) {
              return cache.get(key);
            }
            var result = func.apply(this, args);
            memoized.cache = cache.set(key, result) || cache;
            return result;
          };
          memoized.cache = new (memoize.Cache || MapCache);
          return memoized;
        }
    
        // Expose `MapCache`.
        memoize.Cache = MapCache;
    
        /**
         * Creates a function that negates the result of the predicate `func`. The
         * `func` predicate is invoked with the `this` binding and arguments of the
         * created function.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Function
         * @param {Function} predicate The predicate to negate.
         * @returns {Function} Returns the new negated function.
         * @example
         *
         * function isEven(n) {
         *   return n % 2 == 0;
         * }
         *
         * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven));
         * // => [1, 3, 5]
         */
        function negate(predicate) {
          if (typeof predicate != 'function') {
            throw new TypeError(FUNC_ERROR_TEXT);
          }
          return function() {
            var args = arguments;
            switch (args.length) {
              case 0: return !predicate.call(this);
              case 1: return !predicate.call(this, args[0]);
              case 2: return !predicate.call(this, args[0], args[1]);
              case 3: return !predicate.call(this, args[0], args[1], args[2]);
            }
            return !predicate.apply(this, args);
          };
        }
    
        /**
         * Creates a function that is restricted to invoking `func` once. Repeat calls
         * to the function return the value of the first invocation. The `func` is
         * invoked with the `this` binding and arguments of the created function.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Function
         * @param {Function} func The function to restrict.
         * @returns {Function} Returns the new restricted function.
         * @example
         *
         * var initialize = _.once(createApplication);
         * initialize();
         * initialize();
         * // => `createApplication` is invoked once
         */
        function once(func) {
          return before(2, func);
        }
    
        /**
         * Creates a function that invokes `func` with its arguments transformed.
         *
         * @static
         * @since 4.0.0
         * @memberOf _
         * @category Function
         * @param {Function} func The function to wrap.
         * @param {...(Function|Function[])} [transforms=[_.identity]]
         *  The argument transforms.
         * @returns {Function} Returns the new function.
         * @example
         *
         * function doubled(n) {
         *   return n * 2;
         * }
         *
         * function square(n) {
         *   return n * n;
         * }
         *
         * var func = _.overArgs(function(x, y) {
         *   return [x, y];
         * }, [square, doubled]);
         *
         * func(9, 3);
         * // => [81, 6]
         *
         * func(10, 5);
         * // => [100, 10]
         */
        var overArgs = castRest(function(func, transforms) {
          transforms = (transforms.length == 1 && isArray(transforms[0]))
            ? arrayMap(transforms[0], baseUnary(getIteratee()))
            : arrayMap(baseFlatten(transforms, 1), baseUnary(getIteratee()));
    
          var funcsLength = transforms.length;
          return baseRest(function(args) {
            var index = -1,
                length = nativeMin(args.length, funcsLength);
    
            while (++index < length) {
              args[index] = transforms[index].call(this, args[index]);
            }
            return apply(func, this, args);
          });
        });
    
        /**
         * Creates a function that invokes `func` with `partials` prepended to the
         * arguments it receives. This method is like `_.bind` except it does **not**
         * alter the `this` binding.
         *
         * The `_.partial.placeholder` value, which defaults to `_` in monolithic
         * builds, may be used as a placeholder for partially applied arguments.
         *
         * **Note:** This method doesn't set the "length" property of partially
         * applied functions.
         *
         * @static
         * @memberOf _
         * @since 0.2.0
         * @category Function
         * @param {Function} func The function to partially apply arguments to.
         * @param {...*} [partials] The arguments to be partially applied.
         * @returns {Function} Returns the new partially applied function.
         * @example
         *
         * function greet(greeting, name) {
         *   return greeting + ' ' + name;
         * }
         *
         * var sayHelloTo = _.partial(greet, 'hello');
         * sayHelloTo('fred');
         * // => 'hello fred'
         *
         * // Partially applied with placeholders.
         * var greetFred = _.partial(greet, _, 'fred');
         * greetFred('hi');
         * // => 'hi fred'
         */
        var partial = baseRest(function(func, partials) {
          var holders = replaceHolders(partials, getHolder(partial));
          return createWrap(func, WRAP_PARTIAL_FLAG, undefined, partials, holders);
        });
    
        /**
         * This method is like `_.partial` except that partially applied arguments
         * are appended to the arguments it receives.
         *
         * The `_.partialRight.placeholder` value, which defaults to `_` in monolithic
         * builds, may be used as a placeholder for partially applied arguments.
         *
         * **Note:** This method doesn't set the "length" property of partially
         * applied functions.
         *
         * @static
         * @memberOf _
         * @since 1.0.0
         * @category Function
         * @param {Function} func The function to partially apply arguments to.
         * @param {...*} [partials] The arguments to be partially applied.
         * @returns {Function} Returns the new partially applied function.
         * @example
         *
         * function greet(greeting, name) {
         *   return greeting + ' ' + name;
         * }
         *
         * var greetFred = _.partialRight(greet, 'fred');
         * greetFred('hi');
         * // => 'hi fred'
         *
         * // Partially applied with placeholders.
         * var sayHelloTo = _.partialRight(greet, 'hello', _);
         * sayHelloTo('fred');
         * // => 'hello fred'
         */
        var partialRight = baseRest(function(func, partials) {
          var holders = replaceHolders(partials, getHolder(partialRight));
          return createWrap(func, WRAP_PARTIAL_RIGHT_FLAG, undefined, partials, holders);
        });
    
        /**
         * Creates a function that invokes `func` with arguments arranged according
         * to the specified `indexes` where the argument value at the first index is
         * provided as the first argument, the argument value at the second index is
         * provided as the second argument, and so on.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Function
         * @param {Function} func The function to rearrange arguments for.
         * @param {...(number|number[])} indexes The arranged argument indexes.
         * @returns {Function} Returns the new function.
         * @example
         *
         * var rearged = _.rearg(function(a, b, c) {
         *   return [a, b, c];
         * }, [2, 0, 1]);
         *
         * rearged('b', 'c', 'a')
         * // => ['a', 'b', 'c']
         */
        var rearg = flatRest(function(func, indexes) {
          return createWrap(func, WRAP_REARG_FLAG, undefined, undefined, undefined, indexes);
        });
    
        /**
         * Creates a function that invokes `func` with the `this` binding of the
         * created function and arguments from `start` and beyond provided as
         * an array.
         *
         * **Note:** This method is based on the
         * [rest parameter](https://mdn.io/rest_parameters).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Function
         * @param {Function} func The function to apply a rest parameter to.
         * @param {number} [start=func.length-1] The start position of the rest parameter.
         * @returns {Function} Returns the new function.
         * @example
         *
         * var say = _.rest(function(what, names) {
         *   return what + ' ' + _.initial(names).join(', ') +
         *     (_.size(names) > 1 ? ', & ' : '') + _.last(names);
         * });
         *
         * say('hello', 'fred', 'barney', 'pebbles');
         * // => 'hello fred, barney, & pebbles'
         */
        function rest(func, start) {
          if (typeof func != 'function') {
            throw new TypeError(FUNC_ERROR_TEXT);
          }
          start = start === undefined ? start : toInteger(start);
          return baseRest(func, start);
        }
    
        /**
         * Creates a function that invokes `func` with the `this` binding of the
         * create function and an array of arguments much like
         * [`Function#apply`](http://www.ecma-international.org/ecma-262/7.0/#sec-function.prototype.apply).
         *
         * **Note:** This method is based on the
         * [spread operator](https://mdn.io/spread_operator).
         *
         * @static
         * @memberOf _
         * @since 3.2.0
         * @category Function
         * @param {Function} func The function to spread arguments over.
         * @param {number} [start=0] The start position of the spread.
         * @returns {Function} Returns the new function.
         * @example
         *
         * var say = _.spread(function(who, what) {
         *   return who + ' says ' + what;
         * });
         *
         * say(['fred', 'hello']);
         * // => 'fred says hello'
         *
         * var numbers = Promise.all([
         *   Promise.resolve(40),
         *   Promise.resolve(36)
         * ]);
         *
         * numbers.then(_.spread(function(x, y) {
         *   return x + y;
         * }));
         * // => a Promise of 76
         */
        function spread(func, start) {
          if (typeof func != 'function') {
            throw new TypeError(FUNC_ERROR_TEXT);
          }
          start = start == null ? 0 : nativeMax(toInteger(start), 0);
          return baseRest(function(args) {
            var array = args[start],
                otherArgs = castSlice(args, 0, start);
    
            if (array) {
              arrayPush(otherArgs, array);
            }
            return apply(func, this, otherArgs);
          });
        }
    
        /**
         * Creates a throttled function that only invokes `func` at most once per
         * every `wait` milliseconds. The throttled function comes with a `cancel`
         * method to cancel delayed `func` invocations and a `flush` method to
         * immediately invoke them. Provide `options` to indicate whether `func`
         * should be invoked on the leading and/or trailing edge of the `wait`
         * timeout. The `func` is invoked with the last arguments provided to the
         * throttled function. Subsequent calls to the throttled function return the
         * result of the last `func` invocation.
         *
         * **Note:** If `leading` and `trailing` options are `true`, `func` is
         * invoked on the trailing edge of the timeout only if the throttled function
         * is invoked more than once during the `wait` timeout.
         *
         * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred
         * until to the next tick, similar to `setTimeout` with a timeout of `0`.
         *
         * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)
         * for details over the differences between `_.throttle` and `_.debounce`.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Function
         * @param {Function} func The function to throttle.
         * @param {number} [wait=0] The number of milliseconds to throttle invocations to.
         * @param {Object} [options={}] The options object.
         * @param {boolean} [options.leading=true]
         *  Specify invoking on the leading edge of the timeout.
         * @param {boolean} [options.trailing=true]
         *  Specify invoking on the trailing edge of the timeout.
         * @returns {Function} Returns the new throttled function.
         * @example
         *
         * // Avoid excessively updating the position while scrolling.
         * jQuery(window).on('scroll', _.throttle(updatePosition, 100));
         *
         * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes.
         * var throttled = _.throttle(renewToken, 300000, { 'trailing': false });
         * jQuery(element).on('click', throttled);
         *
         * // Cancel the trailing throttled invocation.
         * jQuery(window).on('popstate', throttled.cancel);
         */
        function throttle(func, wait, options) {
          var leading = true,
              trailing = true;
    
          if (typeof func != 'function') {
            throw new TypeError(FUNC_ERROR_TEXT);
          }
          if (isObject(options)) {
            leading = 'leading' in options ? !!options.leading : leading;
            trailing = 'trailing' in options ? !!options.trailing : trailing;
          }
          return debounce(func, wait, {
            'leading': leading,
            'maxWait': wait,
            'trailing': trailing
          });
        }
    
        /**
         * Creates a function that accepts up to one argument, ignoring any
         * additional arguments.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Function
         * @param {Function} func The function to cap arguments for.
         * @returns {Function} Returns the new capped function.
         * @example
         *
         * _.map(['6', '8', '10'], _.unary(parseInt));
         * // => [6, 8, 10]
         */
        function unary(func) {
          return ary(func, 1);
        }
    
        /**
         * Creates a function that provides `value` to `wrapper` as its first
         * argument. Any additional arguments provided to the function are appended
         * to those provided to the `wrapper`. The wrapper is invoked with the `this`
         * binding of the created function.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Function
         * @param {*} value The value to wrap.
         * @param {Function} [wrapper=identity] The wrapper function.
         * @returns {Function} Returns the new function.
         * @example
         *
         * var p = _.wrap(_.escape, function(func, text) {
         *   return '<p>' + func(text) + '</p>';
         * });
         *
         * p('fred, barney, & pebbles');
         * // => '<p>fred, barney, &amp; pebbles</p>'
         */
        function wrap(value, wrapper) {
          return partial(castFunction(wrapper), value);
        }
    
        /*------------------------------------------------------------------------*/
    
        /**
         * Casts `value` as an array if it's not one.
         *
         * @static
         * @memberOf _
         * @since 4.4.0
         * @category Lang
         * @param {*} value The value to inspect.
         * @returns {Array} Returns the cast array.
         * @example
         *
         * _.castArray(1);
         * // => [1]
         *
         * _.castArray({ 'a': 1 });
         * // => [{ 'a': 1 }]
         *
         * _.castArray('abc');
         * // => ['abc']
         *
         * _.castArray(null);
         * // => [null]
         *
         * _.castArray(undefined);
         * // => [undefined]
         *
         * _.castArray();
         * // => []
         *
         * var array = [1, 2, 3];
         * console.log(_.castArray(array) === array);
         * // => true
         */
        function castArray() {
          if (!arguments.length) {
            return [];
          }
          var value = arguments[0];
          return isArray(value) ? value : [value];
        }
    
        /**
         * Creates a shallow clone of `value`.
         *
         * **Note:** This method is loosely based on the
         * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm)
         * and supports cloning arrays, array buffers, booleans, date objects, maps,
         * numbers, `Object` objects, regexes, sets, strings, symbols, and typed
         * arrays. The own enumerable properties of `arguments` objects are cloned
         * as plain objects. An empty object is returned for uncloneable values such
         * as error objects, functions, DOM nodes, and WeakMaps.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Lang
         * @param {*} value The value to clone.
         * @returns {*} Returns the cloned value.
         * @see _.cloneDeep
         * @example
         *
         * var objects = [{ 'a': 1 }, { 'b': 2 }];
         *
         * var shallow = _.clone(objects);
         * console.log(shallow[0] === objects[0]);
         * // => true
         */
        function clone(value) {
          return baseClone(value, CLONE_SYMBOLS_FLAG);
        }
    
        /**
         * This method is like `_.clone` except that it accepts `customizer` which
         * is invoked to produce the cloned value. If `customizer` returns `undefined`,
         * cloning is handled by the method instead. The `customizer` is invoked with
         * up to four arguments; (value [, index|key, object, stack]).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Lang
         * @param {*} value The value to clone.
         * @param {Function} [customizer] The function to customize cloning.
         * @returns {*} Returns the cloned value.
         * @see _.cloneDeepWith
         * @example
         *
         * function customizer(value) {
         *   if (_.isElement(value)) {
         *     return value.cloneNode(false);
         *   }
         * }
         *
         * var el = _.cloneWith(document.body, customizer);
         *
         * console.log(el === document.body);
         * // => false
         * console.log(el.nodeName);
         * // => 'BODY'
         * console.log(el.childNodes.length);
         * // => 0
         */
        function cloneWith(value, customizer) {
          customizer = typeof customizer == 'function' ? customizer : undefined;
          return baseClone(value, CLONE_SYMBOLS_FLAG, customizer);
        }
    
        /**
         * This method is like `_.clone` except that it recursively clones `value`.
         *
         * @static
         * @memberOf _
         * @since 1.0.0
         * @category Lang
         * @param {*} value The value to recursively clone.
         * @returns {*} Returns the deep cloned value.
         * @see _.clone
         * @example
         *
         * var objects = [{ 'a': 1 }, { 'b': 2 }];
         *
         * var deep = _.cloneDeep(objects);
         * console.log(deep[0] === objects[0]);
         * // => false
         */
        function cloneDeep(value) {
          return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG);
        }
    
        /**
         * This method is like `_.cloneWith` except that it recursively clones `value`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Lang
         * @param {*} value The value to recursively clone.
         * @param {Function} [customizer] The function to customize cloning.
         * @returns {*} Returns the deep cloned value.
         * @see _.cloneWith
         * @example
         *
         * function customizer(value) {
         *   if (_.isElement(value)) {
         *     return value.cloneNode(true);
         *   }
         * }
         *
         * var el = _.cloneDeepWith(document.body, customizer);
         *
         * console.log(el === document.body);
         * // => false
         * console.log(el.nodeName);
         * // => 'BODY'
         * console.log(el.childNodes.length);
         * // => 20
         */
        function cloneDeepWith(value, customizer) {
          customizer = typeof customizer == 'function' ? customizer : undefined;
          return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG, customizer);
        }
    
        /**
         * Checks if `object` conforms to `source` by invoking the predicate
         * properties of `source` with the corresponding property values of `object`.
         *
         * **Note:** This method is equivalent to `_.conforms` when `source` is
         * partially applied.
         *
         * @static
         * @memberOf _
         * @since 4.14.0
         * @category Lang
         * @param {Object} object The object to inspect.
         * @param {Object} source The object of property predicates to conform to.
         * @returns {boolean} Returns `true` if `object` conforms, else `false`.
         * @example
         *
         * var object = { 'a': 1, 'b': 2 };
         *
         * _.conformsTo(object, { 'b': function(n) { return n > 1; } });
         * // => true
         *
         * _.conformsTo(object, { 'b': function(n) { return n > 2; } });
         * // => false
         */
        function conformsTo(object, source) {
          return source == null || baseConformsTo(object, source, keys(source));
        }
    
        /**
         * Performs a
         * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
         * comparison between two values to determine if they are equivalent.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Lang
         * @param {*} value The value to compare.
         * @param {*} other The other value to compare.
         * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
         * @example
         *
         * var object = { 'a': 1 };
         * var other = { 'a': 1 };
         *
         * _.eq(object, object);
         * // => true
         *
         * _.eq(object, other);
         * // => false
         *
         * _.eq('a', 'a');
         * // => true
         *
         * _.eq('a', Object('a'));
         * // => false
         *
         * _.eq(NaN, NaN);
         * // => true
         */
        function eq(value, other) {
          return value === other || (value !== value && other !== other);
        }
    
        /**
         * Checks if `value` is greater than `other`.
         *
         * @static
         * @memberOf _
         * @since 3.9.0
         * @category Lang
         * @param {*} value The value to compare.
         * @param {*} other The other value to compare.
         * @returns {boolean} Returns `true` if `value` is greater than `other`,
         *  else `false`.
         * @see _.lt
         * @example
         *
         * _.gt(3, 1);
         * // => true
         *
         * _.gt(3, 3);
         * // => false
         *
         * _.gt(1, 3);
         * // => false
         */
        var gt = createRelationalOperation(baseGt);
    
        /**
         * Checks if `value` is greater than or equal to `other`.
         *
         * @static
         * @memberOf _
         * @since 3.9.0
         * @category Lang
         * @param {*} value The value to compare.
         * @param {*} other The other value to compare.
         * @returns {boolean} Returns `true` if `value` is greater than or equal to
         *  `other`, else `false`.
         * @see _.lte
         * @example
         *
         * _.gte(3, 1);
         * // => true
         *
         * _.gte(3, 3);
         * // => true
         *
         * _.gte(1, 3);
         * // => false
         */
        var gte = createRelationalOperation(function(value, other) {
          return value >= other;
        });
    
        /**
         * Checks if `value` is likely an `arguments` object.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is an `arguments` object,
         *  else `false`.
         * @example
         *
         * _.isArguments(function() { return arguments; }());
         * // => true
         *
         * _.isArguments([1, 2, 3]);
         * // => false
         */
        var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) {
          return isObjectLike(value) && hasOwnProperty.call(value, 'callee') &&
            !propertyIsEnumerable.call(value, 'callee');
        };
    
        /**
         * Checks if `value` is classified as an `Array` object.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is an array, else `false`.
         * @example
         *
         * _.isArray([1, 2, 3]);
         * // => true
         *
         * _.isArray(document.body.children);
         * // => false
         *
         * _.isArray('abc');
         * // => false
         *
         * _.isArray(_.noop);
         * // => false
         */
        var isArray = Array.isArray;
    
        /**
         * Checks if `value` is classified as an `ArrayBuffer` object.
         *
         * @static
         * @memberOf _
         * @since 4.3.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.
         * @example
         *
         * _.isArrayBuffer(new ArrayBuffer(2));
         * // => true
         *
         * _.isArrayBuffer(new Array(2));
         * // => false
         */
        var isArrayBuffer = nodeIsArrayBuffer ? baseUnary(nodeIsArrayBuffer) : baseIsArrayBuffer;
    
        /**
         * Checks if `value` is array-like. A value is considered array-like if it's
         * not a function and has a `value.length` that's an integer greater than or
         * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is array-like, else `false`.
         * @example
         *
         * _.isArrayLike([1, 2, 3]);
         * // => true
         *
         * _.isArrayLike(document.body.children);
         * // => true
         *
         * _.isArrayLike('abc');
         * // => true
         *
         * _.isArrayLike(_.noop);
         * // => false
         */
        function isArrayLike(value) {
          return value != null && isLength(value.length) && !isFunction(value);
        }
    
        /**
         * This method is like `_.isArrayLike` except that it also checks if `value`
         * is an object.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is an array-like object,
         *  else `false`.
         * @example
         *
         * _.isArrayLikeObject([1, 2, 3]);
         * // => true
         *
         * _.isArrayLikeObject(document.body.children);
         * // => true
         *
         * _.isArrayLikeObject('abc');
         * // => false
         *
         * _.isArrayLikeObject(_.noop);
         * // => false
         */
        function isArrayLikeObject(value) {
          return isObjectLike(value) && isArrayLike(value);
        }
    
        /**
         * Checks if `value` is classified as a boolean primitive or object.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a boolean, else `false`.
         * @example
         *
         * _.isBoolean(false);
         * // => true
         *
         * _.isBoolean(null);
         * // => false
         */
        function isBoolean(value) {
          return value === true || value === false ||
            (isObjectLike(value) && baseGetTag(value) == boolTag);
        }
    
        /**
         * Checks if `value` is a buffer.
         *
         * @static
         * @memberOf _
         * @since 4.3.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a buffer, else `false`.
         * @example
         *
         * _.isBuffer(new Buffer(2));
         * // => true
         *
         * _.isBuffer(new Uint8Array(2));
         * // => false
         */
        var isBuffer = nativeIsBuffer || stubFalse;
    
        /**
         * Checks if `value` is classified as a `Date` object.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a date object, else `false`.
         * @example
         *
         * _.isDate(new Date);
         * // => true
         *
         * _.isDate('Mon April 23 2012');
         * // => false
         */
        var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate;
    
        /**
         * Checks if `value` is likely a DOM element.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a DOM element, else `false`.
         * @example
         *
         * _.isElement(document.body);
         * // => true
         *
         * _.isElement('<body>');
         * // => false
         */
        function isElement(value) {
          return isObjectLike(value) && value.nodeType === 1 && !isPlainObject(value);
        }
    
        /**
         * Checks if `value` is an empty object, collection, map, or set.
         *
         * Objects are considered empty if they have no own enumerable string keyed
         * properties.
         *
         * Array-like values such as `arguments` objects, arrays, buffers, strings, or
         * jQuery-like collections are considered empty if they have a `length` of `0`.
         * Similarly, maps and sets are considered empty if they have a `size` of `0`.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is empty, else `false`.
         * @example
         *
         * _.isEmpty(null);
         * // => true
         *
         * _.isEmpty(true);
         * // => true
         *
         * _.isEmpty(1);
         * // => true
         *
         * _.isEmpty([1, 2, 3]);
         * // => false
         *
         * _.isEmpty({ 'a': 1 });
         * // => false
         */
        function isEmpty(value) {
          if (value == null) {
            return true;
          }
          if (isArrayLike(value) &&
              (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' ||
                isBuffer(value) || isTypedArray(value) || isArguments(value))) {
            return !value.length;
          }
          var tag = getTag(value);
          if (tag == mapTag || tag == setTag) {
            return !value.size;
          }
          if (isPrototype(value)) {
            return !baseKeys(value).length;
          }
          for (var key in value) {
            if (hasOwnProperty.call(value, key)) {
              return false;
            }
          }
          return true;
        }
    
        /**
         * Performs a deep comparison between two values to determine if they are
         * equivalent.
         *
         * **Note:** This method supports comparing arrays, array buffers, booleans,
         * date objects, error objects, maps, numbers, `Object` objects, regexes,
         * sets, strings, symbols, and typed arrays. `Object` objects are compared
         * by their own, not inherited, enumerable properties. Functions and DOM
         * nodes are compared by strict equality, i.e. `===`.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Lang
         * @param {*} value The value to compare.
         * @param {*} other The other value to compare.
         * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
         * @example
         *
         * var object = { 'a': 1 };
         * var other = { 'a': 1 };
         *
         * _.isEqual(object, other);
         * // => true
         *
         * object === other;
         * // => false
         */
        function isEqual(value, other) {
          return baseIsEqual(value, other);
        }
    
        /**
         * This method is like `_.isEqual` except that it accepts `customizer` which
         * is invoked to compare values. If `customizer` returns `undefined`, comparisons
         * are handled by the method instead. The `customizer` is invoked with up to
         * six arguments: (objValue, othValue [, index|key, object, other, stack]).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Lang
         * @param {*} value The value to compare.
         * @param {*} other The other value to compare.
         * @param {Function} [customizer] The function to customize comparisons.
         * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
         * @example
         *
         * function isGreeting(value) {
         *   return /^h(?:i|ello)$/.test(value);
         * }
         *
         * function customizer(objValue, othValue) {
         *   if (isGreeting(objValue) && isGreeting(othValue)) {
         *     return true;
         *   }
         * }
         *
         * var array = ['hello', 'goodbye'];
         * var other = ['hi', 'goodbye'];
         *
         * _.isEqualWith(array, other, customizer);
         * // => true
         */
        function isEqualWith(value, other, customizer) {
          customizer = typeof customizer == 'function' ? customizer : undefined;
          var result = customizer ? customizer(value, other) : undefined;
          return result === undefined ? baseIsEqual(value, other, undefined, customizer) : !!result;
        }
    
        /**
         * Checks if `value` is an `Error`, `EvalError`, `RangeError`, `ReferenceError`,
         * `SyntaxError`, `TypeError`, or `URIError` object.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is an error object, else `false`.
         * @example
         *
         * _.isError(new Error);
         * // => true
         *
         * _.isError(Error);
         * // => false
         */
        function isError(value) {
          if (!isObjectLike(value)) {
            return false;
          }
          var tag = baseGetTag(value);
          return tag == errorTag || tag == domExcTag ||
            (typeof value.message == 'string' && typeof value.name == 'string' && !isPlainObject(value));
        }
    
        /**
         * Checks if `value` is a finite primitive number.
         *
         * **Note:** This method is based on
         * [`Number.isFinite`](https://mdn.io/Number/isFinite).
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a finite number, else `false`.
         * @example
         *
         * _.isFinite(3);
         * // => true
         *
         * _.isFinite(Number.MIN_VALUE);
         * // => true
         *
         * _.isFinite(Infinity);
         * // => false
         *
         * _.isFinite('3');
         * // => false
         */
        function isFinite(value) {
          return typeof value == 'number' && nativeIsFinite(value);
        }
    
        /**
         * Checks if `value` is classified as a `Function` object.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a function, else `false`.
         * @example
         *
         * _.isFunction(_);
         * // => true
         *
         * _.isFunction(/abc/);
         * // => false
         */
        function isFunction(value) {
          if (!isObject(value)) {
            return false;
          }
          // The use of `Object#toString` avoids issues with the `typeof` operator
          // in Safari 9 which returns 'object' for typed arrays and other constructors.
          var tag = baseGetTag(value);
          return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag;
        }
    
        /**
         * Checks if `value` is an integer.
         *
         * **Note:** This method is based on
         * [`Number.isInteger`](https://mdn.io/Number/isInteger).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is an integer, else `false`.
         * @example
         *
         * _.isInteger(3);
         * // => true
         *
         * _.isInteger(Number.MIN_VALUE);
         * // => false
         *
         * _.isInteger(Infinity);
         * // => false
         *
         * _.isInteger('3');
         * // => false
         */
        function isInteger(value) {
          return typeof value == 'number' && value == toInteger(value);
        }
    
        /**
         * Checks if `value` is a valid array-like length.
         *
         * **Note:** This method is loosely based on
         * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
         * @example
         *
         * _.isLength(3);
         * // => true
         *
         * _.isLength(Number.MIN_VALUE);
         * // => false
         *
         * _.isLength(Infinity);
         * // => false
         *
         * _.isLength('3');
         * // => false
         */
        function isLength(value) {
          return typeof value == 'number' &&
            value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
        }
    
        /**
         * Checks if `value` is the
         * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)
         * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is an object, else `false`.
         * @example
         *
         * _.isObject({});
         * // => true
         *
         * _.isObject([1, 2, 3]);
         * // => true
         *
         * _.isObject(_.noop);
         * // => true
         *
         * _.isObject(null);
         * // => false
         */
        function isObject(value) {
          var type = typeof value;
          return value != null && (type == 'object' || type == 'function');
        }
    
        /**
         * Checks if `value` is object-like. A value is object-like if it's not `null`
         * and has a `typeof` result of "object".
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
         * @example
         *
         * _.isObjectLike({});
         * // => true
         *
         * _.isObjectLike([1, 2, 3]);
         * // => true
         *
         * _.isObjectLike(_.noop);
         * // => false
         *
         * _.isObjectLike(null);
         * // => false
         */
        function isObjectLike(value) {
          return value != null && typeof value == 'object';
        }
    
        /**
         * Checks if `value` is classified as a `Map` object.
         *
         * @static
         * @memberOf _
         * @since 4.3.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a map, else `false`.
         * @example
         *
         * _.isMap(new Map);
         * // => true
         *
         * _.isMap(new WeakMap);
         * // => false
         */
        var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap;
    
        /**
         * Performs a partial deep comparison between `object` and `source` to
         * determine if `object` contains equivalent property values.
         *
         * **Note:** This method is equivalent to `_.matches` when `source` is
         * partially applied.
         *
         * Partial comparisons will match empty array and empty object `source`
         * values against any array or object value, respectively. See `_.isEqual`
         * for a list of supported value comparisons.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Lang
         * @param {Object} object The object to inspect.
         * @param {Object} source The object of property values to match.
         * @returns {boolean} Returns `true` if `object` is a match, else `false`.
         * @example
         *
         * var object = { 'a': 1, 'b': 2 };
         *
         * _.isMatch(object, { 'b': 2 });
         * // => true
         *
         * _.isMatch(object, { 'b': 1 });
         * // => false
         */
        function isMatch(object, source) {
          return object === source || baseIsMatch(object, source, getMatchData(source));
        }
    
        /**
         * This method is like `_.isMatch` except that it accepts `customizer` which
         * is invoked to compare values. If `customizer` returns `undefined`, comparisons
         * are handled by the method instead. The `customizer` is invoked with five
         * arguments: (objValue, srcValue, index|key, object, source).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Lang
         * @param {Object} object The object to inspect.
         * @param {Object} source The object of property values to match.
         * @param {Function} [customizer] The function to customize comparisons.
         * @returns {boolean} Returns `true` if `object` is a match, else `false`.
         * @example
         *
         * function isGreeting(value) {
         *   return /^h(?:i|ello)$/.test(value);
         * }
         *
         * function customizer(objValue, srcValue) {
         *   if (isGreeting(objValue) && isGreeting(srcValue)) {
         *     return true;
         *   }
         * }
         *
         * var object = { 'greeting': 'hello' };
         * var source = { 'greeting': 'hi' };
         *
         * _.isMatchWith(object, source, customizer);
         * // => true
         */
        function isMatchWith(object, source, customizer) {
          customizer = typeof customizer == 'function' ? customizer : undefined;
          return baseIsMatch(object, source, getMatchData(source), customizer);
        }
    
        /**
         * Checks if `value` is `NaN`.
         *
         * **Note:** This method is based on
         * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as
         * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for
         * `undefined` and other non-number values.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.
         * @example
         *
         * _.isNaN(NaN);
         * // => true
         *
         * _.isNaN(new Number(NaN));
         * // => true
         *
         * isNaN(undefined);
         * // => true
         *
         * _.isNaN(undefined);
         * // => false
         */
        function isNaN(value) {
          // An `NaN` primitive is the only value that is not equal to itself.
          // Perform the `toStringTag` check first to avoid errors with some
          // ActiveX objects in IE.
          return isNumber(value) && value != +value;
        }
    
        /**
         * Checks if `value` is a pristine native function.
         *
         * **Note:** This method can't reliably detect native functions in the presence
         * of the core-js package because core-js circumvents this kind of detection.
         * Despite multiple requests, the core-js maintainer has made it clear: any
         * attempt to fix the detection will be obstructed. As a result, we're left
         * with little choice but to throw an error. Unfortunately, this also affects
         * packages, like [babel-polyfill](https://www.npmjs.com/package/babel-polyfill),
         * which rely on core-js.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a native function,
         *  else `false`.
         * @example
         *
         * _.isNative(Array.prototype.push);
         * // => true
         *
         * _.isNative(_);
         * // => false
         */
        function isNative(value) {
          if (isMaskable(value)) {
            throw new Error(CORE_ERROR_TEXT);
          }
          return baseIsNative(value);
        }
    
        /**
         * Checks if `value` is `null`.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is `null`, else `false`.
         * @example
         *
         * _.isNull(null);
         * // => true
         *
         * _.isNull(void 0);
         * // => false
         */
        function isNull(value) {
          return value === null;
        }
    
        /**
         * Checks if `value` is `null` or `undefined`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is nullish, else `false`.
         * @example
         *
         * _.isNil(null);
         * // => true
         *
         * _.isNil(void 0);
         * // => true
         *
         * _.isNil(NaN);
         * // => false
         */
        function isNil(value) {
          return value == null;
        }
    
        /**
         * Checks if `value` is classified as a `Number` primitive or object.
         *
         * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are
         * classified as numbers, use the `_.isFinite` method.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a number, else `false`.
         * @example
         *
         * _.isNumber(3);
         * // => true
         *
         * _.isNumber(Number.MIN_VALUE);
         * // => true
         *
         * _.isNumber(Infinity);
         * // => true
         *
         * _.isNumber('3');
         * // => false
         */
        function isNumber(value) {
          return typeof value == 'number' ||
            (isObjectLike(value) && baseGetTag(value) == numberTag);
        }
    
        /**
         * Checks if `value` is a plain object, that is, an object created by the
         * `Object` constructor or one with a `[[Prototype]]` of `null`.
         *
         * @static
         * @memberOf _
         * @since 0.8.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.
         * @example
         *
         * function Foo() {
         *   this.a = 1;
         * }
         *
         * _.isPlainObject(new Foo);
         * // => false
         *
         * _.isPlainObject([1, 2, 3]);
         * // => false
         *
         * _.isPlainObject({ 'x': 0, 'y': 0 });
         * // => true
         *
         * _.isPlainObject(Object.create(null));
         * // => true
         */
        function isPlainObject(value) {
          if (!isObjectLike(value) || baseGetTag(value) != objectTag) {
            return false;
          }
          var proto = getPrototype(value);
          if (proto === null) {
            return true;
          }
          var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor;
          return typeof Ctor == 'function' && Ctor instanceof Ctor &&
            funcToString.call(Ctor) == objectCtorString;
        }
    
        /**
         * Checks if `value` is classified as a `RegExp` object.
         *
         * @static
         * @memberOf _
         * @since 0.1.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.
         * @example
         *
         * _.isRegExp(/abc/);
         * // => true
         *
         * _.isRegExp('/abc/');
         * // => false
         */
        var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp;
    
        /**
         * Checks if `value` is a safe integer. An integer is safe if it's an IEEE-754
         * double precision number which isn't the result of a rounded unsafe integer.
         *
         * **Note:** This method is based on
         * [`Number.isSafeInteger`](https://mdn.io/Number/isSafeInteger).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a safe integer, else `false`.
         * @example
         *
         * _.isSafeInteger(3);
         * // => true
         *
         * _.isSafeInteger(Number.MIN_VALUE);
         * // => false
         *
         * _.isSafeInteger(Infinity);
         * // => false
         *
         * _.isSafeInteger('3');
         * // => false
         */
        function isSafeInteger(value) {
          return isInteger(value) && value >= -MAX_SAFE_INTEGER && value <= MAX_SAFE_INTEGER;
        }
    
        /**
         * Checks if `value` is classified as a `Set` object.
         *
         * @static
         * @memberOf _
         * @since 4.3.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a set, else `false`.
         * @example
         *
         * _.isSet(new Set);
         * // => true
         *
         * _.isSet(new WeakSet);
         * // => false
         */
        var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet;
    
        /**
         * Checks if `value` is classified as a `String` primitive or object.
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a string, else `false`.
         * @example
         *
         * _.isString('abc');
         * // => true
         *
         * _.isString(1);
         * // => false
         */
        function isString(value) {
          return typeof value == 'string' ||
            (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag);
        }
    
        /**
         * Checks if `value` is classified as a `Symbol` primitive or object.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a symbol, else `false`.
         * @example
         *
         * _.isSymbol(Symbol.iterator);
         * // => true
         *
         * _.isSymbol('abc');
         * // => false
         */
        function isSymbol(value) {
          return typeof value == 'symbol' ||
            (isObjectLike(value) && baseGetTag(value) == symbolTag);
        }
    
        /**
         * Checks if `value` is classified as a typed array.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.
         * @example
         *
         * _.isTypedArray(new Uint8Array);
         * // => true
         *
         * _.isTypedArray([]);
         * // => false
         */
        var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray;
    
        /**
         * Checks if `value` is `undefined`.
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`.
         * @example
         *
         * _.isUndefined(void 0);
         * // => true
         *
         * _.isUndefined(null);
         * // => false
         */
        function isUndefined(value) {
          return value === undefined;
        }
    
        /**
         * Checks if `value` is classified as a `WeakMap` object.
         *
         * @static
         * @memberOf _
         * @since 4.3.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a weak map, else `false`.
         * @example
         *
         * _.isWeakMap(new WeakMap);
         * // => true
         *
         * _.isWeakMap(new Map);
         * // => false
         */
        function isWeakMap(value) {
          return isObjectLike(value) && getTag(value) == weakMapTag;
        }
    
        /**
         * Checks if `value` is classified as a `WeakSet` object.
         *
         * @static
         * @memberOf _
         * @since 4.3.0
         * @category Lang
         * @param {*} value The value to check.
         * @returns {boolean} Returns `true` if `value` is a weak set, else `false`.
         * @example
         *
         * _.isWeakSet(new WeakSet);
         * // => true
         *
         * _.isWeakSet(new Set);
         * // => false
         */
        function isWeakSet(value) {
          return isObjectLike(value) && baseGetTag(value) == weakSetTag;
        }
    
        /**
         * Checks if `value` is less than `other`.
         *
         * @static
         * @memberOf _
         * @since 3.9.0
         * @category Lang
         * @param {*} value The value to compare.
         * @param {*} other The other value to compare.
         * @returns {boolean} Returns `true` if `value` is less than `other`,
         *  else `false`.
         * @see _.gt
         * @example
         *
         * _.lt(1, 3);
         * // => true
         *
         * _.lt(3, 3);
         * // => false
         *
         * _.lt(3, 1);
         * // => false
         */
        var lt = createRelationalOperation(baseLt);
    
        /**
         * Checks if `value` is less than or equal to `other`.
         *
         * @static
         * @memberOf _
         * @since 3.9.0
         * @category Lang
         * @param {*} value The value to compare.
         * @param {*} other The other value to compare.
         * @returns {boolean} Returns `true` if `value` is less than or equal to
         *  `other`, else `false`.
         * @see _.gte
         * @example
         *
         * _.lte(1, 3);
         * // => true
         *
         * _.lte(3, 3);
         * // => true
         *
         * _.lte(3, 1);
         * // => false
         */
        var lte = createRelationalOperation(function(value, other) {
          return value <= other;
        });
    
        /**
         * Converts `value` to an array.
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category Lang
         * @param {*} value The value to convert.
         * @returns {Array} Returns the converted array.
         * @example
         *
         * _.toArray({ 'a': 1, 'b': 2 });
         * // => [1, 2]
         *
         * _.toArray('abc');
         * // => ['a', 'b', 'c']
         *
         * _.toArray(1);
         * // => []
         *
         * _.toArray(null);
         * // => []
         */
        function toArray(value) {
          if (!value) {
            return [];
          }
          if (isArrayLike(value)) {
            return isString(value) ? stringToArray(value) : copyArray(value);
          }
          if (symIterator && value[symIterator]) {
            return iteratorToArray(value[symIterator]());
          }
          var tag = getTag(value),
              func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values);
    
          return func(value);
        }
    
        /**
         * Converts `value` to a finite number.
         *
         * @static
         * @memberOf _
         * @since 4.12.0
         * @category Lang
         * @param {*} value The value to convert.
         * @returns {number} Returns the converted number.
         * @example
         *
         * _.toFinite(3.2);
         * // => 3.2
         *
         * _.toFinite(Number.MIN_VALUE);
         * // => 5e-324
         *
         * _.toFinite(Infinity);
         * // => 1.7976931348623157e+308
         *
         * _.toFinite('3.2');
         * // => 3.2
         */
        function toFinite(value) {
          if (!value) {
            return value === 0 ? value : 0;
          }
          value = toNumber(value);
          if (value === INFINITY || value === -INFINITY) {
            var sign = (value < 0 ? -1 : 1);
            return sign * MAX_INTEGER;
          }
          return value === value ? value : 0;
        }
    
        /**
         * Converts `value` to an integer.
         *
         * **Note:** This method is loosely based on
         * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Lang
         * @param {*} value The value to convert.
         * @returns {number} Returns the converted integer.
         * @example
         *
         * _.toInteger(3.2);
         * // => 3
         *
         * _.toInteger(Number.MIN_VALUE);
         * // => 0
         *
         * _.toInteger(Infinity);
         * // => 1.7976931348623157e+308
         *
         * _.toInteger('3.2');
         * // => 3
         */
        function toInteger(value) {
          var result = toFinite(value),
              remainder = result % 1;
    
          return result === result ? (remainder ? result - remainder : result) : 0;
        }
    
        /**
         * Converts `value` to an integer suitable for use as the length of an
         * array-like object.
         *
         * **Note:** This method is based on
         * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Lang
         * @param {*} value The value to convert.
         * @returns {number} Returns the converted integer.
         * @example
         *
         * _.toLength(3.2);
         * // => 3
         *
         * _.toLength(Number.MIN_VALUE);
         * // => 0
         *
         * _.toLength(Infinity);
         * // => 4294967295
         *
         * _.toLength('3.2');
         * // => 3
         */
        function toLength(value) {
          return value ? baseClamp(toInteger(value), 0, MAX_ARRAY_LENGTH) : 0;
        }
    
        /**
         * Converts `value` to a number.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Lang
         * @param {*} value The value to process.
         * @returns {number} Returns the number.
         * @example
         *
         * _.toNumber(3.2);
         * // => 3.2
         *
         * _.toNumber(Number.MIN_VALUE);
         * // => 5e-324
         *
         * _.toNumber(Infinity);
         * // => Infinity
         *
         * _.toNumber('3.2');
         * // => 3.2
         */
        function toNumber(value) {
          if (typeof value == 'number') {
            return value;
          }
          if (isSymbol(value)) {
            return NAN;
          }
          if (isObject(value)) {
            var other = typeof value.valueOf == 'function' ? value.valueOf() : value;
            value = isObject(other) ? (other + '') : other;
          }
          if (typeof value != 'string') {
            return value === 0 ? value : +value;
          }
          value = value.replace(reTrim, '');
          var isBinary = reIsBinary.test(value);
          return (isBinary || reIsOctal.test(value))
            ? freeParseInt(value.slice(2), isBinary ? 2 : 8)
            : (reIsBadHex.test(value) ? NAN : +value);
        }
    
        /**
         * Converts `value` to a plain object flattening inherited enumerable string
         * keyed properties of `value` to own properties of the plain object.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Lang
         * @param {*} value The value to convert.
         * @returns {Object} Returns the converted plain object.
         * @example
         *
         * function Foo() {
         *   this.b = 2;
         * }
         *
         * Foo.prototype.c = 3;
         *
         * _.assign({ 'a': 1 }, new Foo);
         * // => { 'a': 1, 'b': 2 }
         *
         * _.assign({ 'a': 1 }, _.toPlainObject(new Foo));
         * // => { 'a': 1, 'b': 2, 'c': 3 }
         */
        function toPlainObject(value) {
          return copyObject(value, keysIn(value));
        }
    
        /**
         * Converts `value` to a safe integer. A safe integer can be compared and
         * represented correctly.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Lang
         * @param {*} value The value to convert.
         * @returns {number} Returns the converted integer.
         * @example
         *
         * _.toSafeInteger(3.2);
         * // => 3
         *
         * _.toSafeInteger(Number.MIN_VALUE);
         * // => 0
         *
         * _.toSafeInteger(Infinity);
         * // => 9007199254740991
         *
         * _.toSafeInteger('3.2');
         * // => 3
         */
        function toSafeInteger(value) {
          return value
            ? baseClamp(toInteger(value), -MAX_SAFE_INTEGER, MAX_SAFE_INTEGER)
            : (value === 0 ? value : 0);
        }
    
        /**
         * Converts `value` to a string. An empty string is returned for `null`
         * and `undefined` values. The sign of `-0` is preserved.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Lang
         * @param {*} value The value to convert.
         * @returns {string} Returns the converted string.
         * @example
         *
         * _.toString(null);
         * // => ''
         *
         * _.toString(-0);
         * // => '-0'
         *
         * _.toString([1, 2, 3]);
         * // => '1,2,3'
         */
        function toString(value) {
          return value == null ? '' : baseToString(value);
        }
    
        /*------------------------------------------------------------------------*/
    
        /**
         * Assigns own enumerable string keyed properties of source objects to the
         * destination object. Source objects are applied from left to right.
         * Subsequent sources overwrite property assignments of previous sources.
         *
         * **Note:** This method mutates `object` and is loosely based on
         * [`Object.assign`](https://mdn.io/Object/assign).
         *
         * @static
         * @memberOf _
         * @since 0.10.0
         * @category Object
         * @param {Object} object The destination object.
         * @param {...Object} [sources] The source objects.
         * @returns {Object} Returns `object`.
         * @see _.assignIn
         * @example
         *
         * function Foo() {
         *   this.a = 1;
         * }
         *
         * function Bar() {
         *   this.c = 3;
         * }
         *
         * Foo.prototype.b = 2;
         * Bar.prototype.d = 4;
         *
         * _.assign({ 'a': 0 }, new Foo, new Bar);
         * // => { 'a': 1, 'c': 3 }
         */
        var assign = createAssigner(function(object, source) {
          if (isPrototype(source) || isArrayLike(source)) {
            copyObject(source, keys(source), object);
            return;
          }
          for (var key in source) {
            if (hasOwnProperty.call(source, key)) {
              assignValue(object, key, source[key]);
            }
          }
        });
    
        /**
         * This method is like `_.assign` except that it iterates over own and
         * inherited source properties.
         *
         * **Note:** This method mutates `object`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @alias extend
         * @category Object
         * @param {Object} object The destination object.
         * @param {...Object} [sources] The source objects.
         * @returns {Object} Returns `object`.
         * @see _.assign
         * @example
         *
         * function Foo() {
         *   this.a = 1;
         * }
         *
         * function Bar() {
         *   this.c = 3;
         * }
         *
         * Foo.prototype.b = 2;
         * Bar.prototype.d = 4;
         *
         * _.assignIn({ 'a': 0 }, new Foo, new Bar);
         * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 }
         */
        var assignIn = createAssigner(function(object, source) {
          copyObject(source, keysIn(source), object);
        });
    
        /**
         * This method is like `_.assignIn` except that it accepts `customizer`
         * which is invoked to produce the assigned values. If `customizer` returns
         * `undefined`, assignment is handled by the method instead. The `customizer`
         * is invoked with five arguments: (objValue, srcValue, key, object, source).
         *
         * **Note:** This method mutates `object`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @alias extendWith
         * @category Object
         * @param {Object} object The destination object.
         * @param {...Object} sources The source objects.
         * @param {Function} [customizer] The function to customize assigned values.
         * @returns {Object} Returns `object`.
         * @see _.assignWith
         * @example
         *
         * function customizer(objValue, srcValue) {
         *   return _.isUndefined(objValue) ? srcValue : objValue;
         * }
         *
         * var defaults = _.partialRight(_.assignInWith, customizer);
         *
         * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });
         * // => { 'a': 1, 'b': 2 }
         */
        var assignInWith = createAssigner(function(object, source, srcIndex, customizer) {
          copyObject(source, keysIn(source), object, customizer);
        });
    
        /**
         * This method is like `_.assign` except that it accepts `customizer`
         * which is invoked to produce the assigned values. If `customizer` returns
         * `undefined`, assignment is handled by the method instead. The `customizer`
         * is invoked with five arguments: (objValue, srcValue, key, object, source).
         *
         * **Note:** This method mutates `object`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Object
         * @param {Object} object The destination object.
         * @param {...Object} sources The source objects.
         * @param {Function} [customizer] The function to customize assigned values.
         * @returns {Object} Returns `object`.
         * @see _.assignInWith
         * @example
         *
         * function customizer(objValue, srcValue) {
         *   return _.isUndefined(objValue) ? srcValue : objValue;
         * }
         *
         * var defaults = _.partialRight(_.assignWith, customizer);
         *
         * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });
         * // => { 'a': 1, 'b': 2 }
         */
        var assignWith = createAssigner(function(object, source, srcIndex, customizer) {
          copyObject(source, keys(source), object, customizer);
        });
    
        /**
         * Creates an array of values corresponding to `paths` of `object`.
         *
         * @static
         * @memberOf _
         * @since 1.0.0
         * @category Object
         * @param {Object} object The object to iterate over.
         * @param {...(string|string[])} [paths] The property paths to pick.
         * @returns {Array} Returns the picked values.
         * @example
         *
         * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };
         *
         * _.at(object, ['a[0].b.c', 'a[1]']);
         * // => [3, 4]
         */
        var at = flatRest(baseAt);
    
        /**
         * Creates an object that inherits from the `prototype` object. If a
         * `properties` object is given, its own enumerable string keyed properties
         * are assigned to the created object.
         *
         * @static
         * @memberOf _
         * @since 2.3.0
         * @category Object
         * @param {Object} prototype The object to inherit from.
         * @param {Object} [properties] The properties to assign to the object.
         * @returns {Object} Returns the new object.
         * @example
         *
         * function Shape() {
         *   this.x = 0;
         *   this.y = 0;
         * }
         *
         * function Circle() {
         *   Shape.call(this);
         * }
         *
         * Circle.prototype = _.create(Shape.prototype, {
         *   'constructor': Circle
         * });
         *
         * var circle = new Circle;
         * circle instanceof Circle;
         * // => true
         *
         * circle instanceof Shape;
         * // => true
         */
        function create(prototype, properties) {
          var result = baseCreate(prototype);
          return properties == null ? result : baseAssign(result, properties);
        }
    
        /**
         * Assigns own and inherited enumerable string keyed properties of source
         * objects to the destination object for all destination properties that
         * resolve to `undefined`. Source objects are applied from left to right.
         * Once a property is set, additional values of the same property are ignored.
         *
         * **Note:** This method mutates `object`.
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category Object
         * @param {Object} object The destination object.
         * @param {...Object} [sources] The source objects.
         * @returns {Object} Returns `object`.
         * @see _.defaultsDeep
         * @example
         *
         * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });
         * // => { 'a': 1, 'b': 2 }
         */
        var defaults = baseRest(function(object, sources) {
          object = Object(object);
    
          var index = -1;
          var length = sources.length;
          var guard = length > 2 ? sources[2] : undefined;
    
          if (guard && isIterateeCall(sources[0], sources[1], guard)) {
            length = 1;
          }
    
          while (++index < length) {
            var source = sources[index];
            var props = keysIn(source);
            var propsIndex = -1;
            var propsLength = props.length;
    
            while (++propsIndex < propsLength) {
              var key = props[propsIndex];
              var value = object[key];
    
              if (value === undefined ||
                  (eq(value, objectProto[key]) && !hasOwnProperty.call(object, key))) {
                object[key] = source[key];
              }
            }
          }
    
          return object;
        });
    
        /**
         * This method is like `_.defaults` except that it recursively assigns
         * default properties.
         *
         * **Note:** This method mutates `object`.
         *
         * @static
         * @memberOf _
         * @since 3.10.0
         * @category Object
         * @param {Object} object The destination object.
         * @param {...Object} [sources] The source objects.
         * @returns {Object} Returns `object`.
         * @see _.defaults
         * @example
         *
         * _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } });
         * // => { 'a': { 'b': 2, 'c': 3 } }
         */
        var defaultsDeep = baseRest(function(args) {
          args.push(undefined, customDefaultsMerge);
          return apply(mergeWith, undefined, args);
        });
    
        /**
         * This method is like `_.find` except that it returns the key of the first
         * element `predicate` returns truthy for instead of the element itself.
         *
         * @static
         * @memberOf _
         * @since 1.1.0
         * @category Object
         * @param {Object} object The object to inspect.
         * @param {Function} [predicate=_.identity] The function invoked per iteration.
         * @returns {string|undefined} Returns the key of the matched element,
         *  else `undefined`.
         * @example
         *
         * var users = {
         *   'barney':  { 'age': 36, 'active': true },
         *   'fred':    { 'age': 40, 'active': false },
         *   'pebbles': { 'age': 1,  'active': true }
         * };
         *
         * _.findKey(users, function(o) { return o.age < 40; });
         * // => 'barney' (iteration order is not guaranteed)
         *
         * // The `_.matches` iteratee shorthand.
         * _.findKey(users, { 'age': 1, 'active': true });
         * // => 'pebbles'
         *
         * // The `_.matchesProperty` iteratee shorthand.
         * _.findKey(users, ['active', false]);
         * // => 'fred'
         *
         * // The `_.property` iteratee shorthand.
         * _.findKey(users, 'active');
         * // => 'barney'
         */
        function findKey(object, predicate) {
          return baseFindKey(object, getIteratee(predicate, 3), baseForOwn);
        }
    
        /**
         * This method is like `_.findKey` except that it iterates over elements of
         * a collection in the opposite order.
         *
         * @static
         * @memberOf _
         * @since 2.0.0
         * @category Object
         * @param {Object} object The object to inspect.
         * @param {Function} [predicate=_.identity] The function invoked per iteration.
         * @returns {string|undefined} Returns the key of the matched element,
         *  else `undefined`.
         * @example
         *
         * var users = {
         *   'barney':  { 'age': 36, 'active': true },
         *   'fred':    { 'age': 40, 'active': false },
         *   'pebbles': { 'age': 1,  'active': true }
         * };
         *
         * _.findLastKey(users, function(o) { return o.age < 40; });
         * // => returns 'pebbles' assuming `_.findKey` returns 'barney'
         *
         * // The `_.matches` iteratee shorthand.
         * _.findLastKey(users, { 'age': 36, 'active': true });
         * // => 'barney'
         *
         * // The `_.matchesProperty` iteratee shorthand.
         * _.findLastKey(users, ['active', false]);
         * // => 'fred'
         *
         * // The `_.property` iteratee shorthand.
         * _.findLastKey(users, 'active');
         * // => 'pebbles'
         */
        function findLastKey(object, predicate) {
          return baseFindKey(object, getIteratee(predicate, 3), baseForOwnRight);
        }
    
        /**
         * Iterates over own and inherited enumerable string keyed properties of an
         * object and invokes `iteratee` for each property. The iteratee is invoked
         * with three arguments: (value, key, object). Iteratee functions may exit
         * iteration early by explicitly returning `false`.
         *
         * @static
         * @memberOf _
         * @since 0.3.0
         * @category Object
         * @param {Object} object The object to iterate over.
         * @param {Function} [iteratee=_.identity] The function invoked per iteration.
         * @returns {Object} Returns `object`.
         * @see _.forInRight
         * @example
         *
         * function Foo() {
         *   this.a = 1;
         *   this.b = 2;
         * }
         *
         * Foo.prototype.c = 3;
         *
         * _.forIn(new Foo, function(value, key) {
         *   console.log(key);
         * });
         * // => Logs 'a', 'b', then 'c' (iteration order is not guaranteed).
         */
        function forIn(object, iteratee) {
          return object == null
            ? object
            : baseFor(object, getIteratee(iteratee, 3), keysIn);
        }
    
        /**
         * This method is like `_.forIn` except that it iterates over properties of
         * `object` in the opposite order.
         *
         * @static
         * @memberOf _
         * @since 2.0.0
         * @category Object
         * @param {Object} object The object to iterate over.
         * @param {Function} [iteratee=_.identity] The function invoked per iteration.
         * @returns {Object} Returns `object`.
         * @see _.forIn
         * @example
         *
         * function Foo() {
         *   this.a = 1;
         *   this.b = 2;
         * }
         *
         * Foo.prototype.c = 3;
         *
         * _.forInRight(new Foo, function(value, key) {
         *   console.log(key);
         * });
         * // => Logs 'c', 'b', then 'a' assuming `_.forIn` logs 'a', 'b', then 'c'.
         */
        function forInRight(object, iteratee) {
          return object == null
            ? object
            : baseForRight(object, getIteratee(iteratee, 3), keysIn);
        }
    
        /**
         * Iterates over own enumerable string keyed properties of an object and
         * invokes `iteratee` for each property. The iteratee is invoked with three
         * arguments: (value, key, object). Iteratee functions may exit iteration
         * early by explicitly returning `false`.
         *
         * @static
         * @memberOf _
         * @since 0.3.0
         * @category Object
         * @param {Object} object The object to iterate over.
         * @param {Function} [iteratee=_.identity] The function invoked per iteration.
         * @returns {Object} Returns `object`.
         * @see _.forOwnRight
         * @example
         *
         * function Foo() {
         *   this.a = 1;
         *   this.b = 2;
         * }
         *
         * Foo.prototype.c = 3;
         *
         * _.forOwn(new Foo, function(value, key) {
         *   console.log(key);
         * });
         * // => Logs 'a' then 'b' (iteration order is not guaranteed).
         */
        function forOwn(object, iteratee) {
          return object && baseForOwn(object, getIteratee(iteratee, 3));
        }
    
        /**
         * This method is like `_.forOwn` except that it iterates over properties of
         * `object` in the opposite order.
         *
         * @static
         * @memberOf _
         * @since 2.0.0
         * @category Object
         * @param {Object} object The object to iterate over.
         * @param {Function} [iteratee=_.identity] The function invoked per iteration.
         * @returns {Object} Returns `object`.
         * @see _.forOwn
         * @example
         *
         * function Foo() {
         *   this.a = 1;
         *   this.b = 2;
         * }
         *
         * Foo.prototype.c = 3;
         *
         * _.forOwnRight(new Foo, function(value, key) {
         *   console.log(key);
         * });
         * // => Logs 'b' then 'a' assuming `_.forOwn` logs 'a' then 'b'.
         */
        function forOwnRight(object, iteratee) {
          return object && baseForOwnRight(object, getIteratee(iteratee, 3));
        }
    
        /**
         * Creates an array of function property names from own enumerable properties
         * of `object`.
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category Object
         * @param {Object} object The object to inspect.
         * @returns {Array} Returns the function names.
         * @see _.functionsIn
         * @example
         *
         * function Foo() {
         *   this.a = _.constant('a');
         *   this.b = _.constant('b');
         * }
         *
         * Foo.prototype.c = _.constant('c');
         *
         * _.functions(new Foo);
         * // => ['a', 'b']
         */
        function functions(object) {
          return object == null ? [] : baseFunctions(object, keys(object));
        }
    
        /**
         * Creates an array of function property names from own and inherited
         * enumerable properties of `object`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Object
         * @param {Object} object The object to inspect.
         * @returns {Array} Returns the function names.
         * @see _.functions
         * @example
         *
         * function Foo() {
         *   this.a = _.constant('a');
         *   this.b = _.constant('b');
         * }
         *
         * Foo.prototype.c = _.constant('c');
         *
         * _.functionsIn(new Foo);
         * // => ['a', 'b', 'c']
         */
        function functionsIn(object) {
          return object == null ? [] : baseFunctions(object, keysIn(object));
        }
    
        /**
         * Gets the value at `path` of `object`. If the resolved value is
         * `undefined`, the `defaultValue` is returned in its place.
         *
         * @static
         * @memberOf _
         * @since 3.7.0
         * @category Object
         * @param {Object} object The object to query.
         * @param {Array|string} path The path of the property to get.
         * @param {*} [defaultValue] The value returned for `undefined` resolved values.
         * @returns {*} Returns the resolved value.
         * @example
         *
         * var object = { 'a': [{ 'b': { 'c': 3 } }] };
         *
         * _.get(object, 'a[0].b.c');
         * // => 3
         *
         * _.get(object, ['a', '0', 'b', 'c']);
         * // => 3
         *
         * _.get(object, 'a.b.c', 'default');
         * // => 'default'
         */
        function get(object, path, defaultValue) {
          var result = object == null ? undefined : baseGet(object, path);
          return result === undefined ? defaultValue : result;
        }
    
        /**
         * Checks if `path` is a direct property of `object`.
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category Object
         * @param {Object} object The object to query.
         * @param {Array|string} path The path to check.
         * @returns {boolean} Returns `true` if `path` exists, else `false`.
         * @example
         *
         * var object = { 'a': { 'b': 2 } };
         * var other = _.create({ 'a': _.create({ 'b': 2 }) });
         *
         * _.has(object, 'a');
         * // => true
         *
         * _.has(object, 'a.b');
         * // => true
         *
         * _.has(object, ['a', 'b']);
         * // => true
         *
         * _.has(other, 'a');
         * // => false
         */
        function has(object, path) {
          return object != null && hasPath(object, path, baseHas);
        }
    
        /**
         * Checks if `path` is a direct or inherited property of `object`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Object
         * @param {Object} object The object to query.
         * @param {Array|string} path The path to check.
         * @returns {boolean} Returns `true` if `path` exists, else `false`.
         * @example
         *
         * var object = _.create({ 'a': _.create({ 'b': 2 }) });
         *
         * _.hasIn(object, 'a');
         * // => true
         *
         * _.hasIn(object, 'a.b');
         * // => true
         *
         * _.hasIn(object, ['a', 'b']);
         * // => true
         *
         * _.hasIn(object, 'b');
         * // => false
         */
        function hasIn(object, path) {
          return object != null && hasPath(object, path, baseHasIn);
        }
    
        /**
         * Creates an object composed of the inverted keys and values of `object`.
         * If `object` contains duplicate values, subsequent values overwrite
         * property assignments of previous values.
         *
         * @static
         * @memberOf _
         * @since 0.7.0
         * @category Object
         * @param {Object} object The object to invert.
         * @returns {Object} Returns the new inverted object.
         * @example
         *
         * var object = { 'a': 1, 'b': 2, 'c': 1 };
         *
         * _.invert(object);
         * // => { '1': 'c', '2': 'b' }
         */
        var invert = createInverter(function(result, value, key) {
          if (value != null &&
              typeof value.toString != 'function') {
            value = nativeObjectToString.call(value);
          }
    
          result[value] = key;
        }, constant(identity));
    
        /**
         * This method is like `_.invert` except that the inverted object is generated
         * from the results of running each element of `object` thru `iteratee`. The
         * corresponding inverted value of each inverted key is an array of keys
         * responsible for generating the inverted value. The iteratee is invoked
         * with one argument: (value).
         *
         * @static
         * @memberOf _
         * @since 4.1.0
         * @category Object
         * @param {Object} object The object to invert.
         * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
         * @returns {Object} Returns the new inverted object.
         * @example
         *
         * var object = { 'a': 1, 'b': 2, 'c': 1 };
         *
         * _.invertBy(object);
         * // => { '1': ['a', 'c'], '2': ['b'] }
         *
         * _.invertBy(object, function(value) {
         *   return 'group' + value;
         * });
         * // => { 'group1': ['a', 'c'], 'group2': ['b'] }
         */
        var invertBy = createInverter(function(result, value, key) {
          if (value != null &&
              typeof value.toString != 'function') {
            value = nativeObjectToString.call(value);
          }
    
          if (hasOwnProperty.call(result, value)) {
            result[value].push(key);
          } else {
            result[value] = [key];
          }
        }, getIteratee);
    
        /**
         * Invokes the method at `path` of `object`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Object
         * @param {Object} object The object to query.
         * @param {Array|string} path The path of the method to invoke.
         * @param {...*} [args] The arguments to invoke the method with.
         * @returns {*} Returns the result of the invoked method.
         * @example
         *
         * var object = { 'a': [{ 'b': { 'c': [1, 2, 3, 4] } }] };
         *
         * _.invoke(object, 'a[0].b.c.slice', 1, 3);
         * // => [2, 3]
         */
        var invoke = baseRest(baseInvoke);
    
        /**
         * Creates an array of the own enumerable property names of `object`.
         *
         * **Note:** Non-object values are coerced to objects. See the
         * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)
         * for more details.
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category Object
         * @param {Object} object The object to query.
         * @returns {Array} Returns the array of property names.
         * @example
         *
         * function Foo() {
         *   this.a = 1;
         *   this.b = 2;
         * }
         *
         * Foo.prototype.c = 3;
         *
         * _.keys(new Foo);
         * // => ['a', 'b'] (iteration order is not guaranteed)
         *
         * _.keys('hi');
         * // => ['0', '1']
         */
        function keys(object) {
          return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object);
        }
    
        /**
         * Creates an array of the own and inherited enumerable property names of `object`.
         *
         * **Note:** Non-object values are coerced to objects.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Object
         * @param {Object} object The object to query.
         * @returns {Array} Returns the array of property names.
         * @example
         *
         * function Foo() {
         *   this.a = 1;
         *   this.b = 2;
         * }
         *
         * Foo.prototype.c = 3;
         *
         * _.keysIn(new Foo);
         * // => ['a', 'b', 'c'] (iteration order is not guaranteed)
         */
        function keysIn(object) {
          return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object);
        }
    
        /**
         * The opposite of `_.mapValues`; this method creates an object with the
         * same values as `object` and keys generated by running each own enumerable
         * string keyed property of `object` thru `iteratee`. The iteratee is invoked
         * with three arguments: (value, key, object).
         *
         * @static
         * @memberOf _
         * @since 3.8.0
         * @category Object
         * @param {Object} object The object to iterate over.
         * @param {Function} [iteratee=_.identity] The function invoked per iteration.
         * @returns {Object} Returns the new mapped object.
         * @see _.mapValues
         * @example
         *
         * _.mapKeys({ 'a': 1, 'b': 2 }, function(value, key) {
         *   return key + value;
         * });
         * // => { 'a1': 1, 'b2': 2 }
         */
        function mapKeys(object, iteratee) {
          var result = {};
          iteratee = getIteratee(iteratee, 3);
    
          baseForOwn(object, function(value, key, object) {
            baseAssignValue(result, iteratee(value, key, object), value);
          });
          return result;
        }
    
        /**
         * Creates an object with the same keys as `object` and values generated
         * by running each own enumerable string keyed property of `object` thru
         * `iteratee`. The iteratee is invoked with three arguments:
         * (value, key, object).
         *
         * @static
         * @memberOf _
         * @since 2.4.0
         * @category Object
         * @param {Object} object The object to iterate over.
         * @param {Function} [iteratee=_.identity] The function invoked per iteration.
         * @returns {Object} Returns the new mapped object.
         * @see _.mapKeys
         * @example
         *
         * var users = {
         *   'fred':    { 'user': 'fred',    'age': 40 },
         *   'pebbles': { 'user': 'pebbles', 'age': 1 }
         * };
         *
         * _.mapValues(users, function(o) { return o.age; });
         * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)
         *
         * // The `_.property` iteratee shorthand.
         * _.mapValues(users, 'age');
         * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)
         */
        function mapValues(object, iteratee) {
          var result = {};
          iteratee = getIteratee(iteratee, 3);
    
          baseForOwn(object, function(value, key, object) {
            baseAssignValue(result, key, iteratee(value, key, object));
          });
          return result;
        }
    
        /**
         * This method is like `_.assign` except that it recursively merges own and
         * inherited enumerable string keyed properties of source objects into the
         * destination object. Source properties that resolve to `undefined` are
         * skipped if a destination value exists. Array and plain object properties
         * are merged recursively. Other objects and value types are overridden by
         * assignment. Source objects are applied from left to right. Subsequent
         * sources overwrite property assignments of previous sources.
         *
         * **Note:** This method mutates `object`.
         *
         * @static
         * @memberOf _
         * @since 0.5.0
         * @category Object
         * @param {Object} object The destination object.
         * @param {...Object} [sources] The source objects.
         * @returns {Object} Returns `object`.
         * @example
         *
         * var object = {
         *   'a': [{ 'b': 2 }, { 'd': 4 }]
         * };
         *
         * var other = {
         *   'a': [{ 'c': 3 }, { 'e': 5 }]
         * };
         *
         * _.merge(object, other);
         * // => { 'a': [{ 'b': 2, 'c': 3 }, { 'd': 4, 'e': 5 }] }
         */
        var merge = createAssigner(function(object, source, srcIndex) {
          baseMerge(object, source, srcIndex);
        });
    
        /**
         * This method is like `_.merge` except that it accepts `customizer` which
         * is invoked to produce the merged values of the destination and source
         * properties. If `customizer` returns `undefined`, merging is handled by the
         * method instead. The `customizer` is invoked with six arguments:
         * (objValue, srcValue, key, object, source, stack).
         *
         * **Note:** This method mutates `object`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Object
         * @param {Object} object The destination object.
         * @param {...Object} sources The source objects.
         * @param {Function} customizer The function to customize assigned values.
         * @returns {Object} Returns `object`.
         * @example
         *
         * function customizer(objValue, srcValue) {
         *   if (_.isArray(objValue)) {
         *     return objValue.concat(srcValue);
         *   }
         * }
         *
         * var object = { 'a': [1], 'b': [2] };
         * var other = { 'a': [3], 'b': [4] };
         *
         * _.mergeWith(object, other, customizer);
         * // => { 'a': [1, 3], 'b': [2, 4] }
         */
        var mergeWith = createAssigner(function(object, source, srcIndex, customizer) {
          baseMerge(object, source, srcIndex, customizer);
        });
    
        /**
         * The opposite of `_.pick`; this method creates an object composed of the
         * own and inherited enumerable property paths of `object` that are not omitted.
         *
         * **Note:** This method is considerably slower than `_.pick`.
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category Object
         * @param {Object} object The source object.
         * @param {...(string|string[])} [paths] The property paths to omit.
         * @returns {Object} Returns the new object.
         * @example
         *
         * var object = { 'a': 1, 'b': '2', 'c': 3 };
         *
         * _.omit(object, ['a', 'c']);
         * // => { 'b': '2' }
         */
        var omit = flatRest(function(object, paths) {
          var result = {};
          if (object == null) {
            return result;
          }
          var isDeep = false;
          paths = arrayMap(paths, function(path) {
            path = castPath(path, object);
            isDeep || (isDeep = path.length > 1);
            return path;
          });
          copyObject(object, getAllKeysIn(object), result);
          if (isDeep) {
            result = baseClone(result, CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG, customOmitClone);
          }
          var length = paths.length;
          while (length--) {
            baseUnset(result, paths[length]);
          }
          return result;
        });
    
        /**
         * The opposite of `_.pickBy`; this method creates an object composed of
         * the own and inherited enumerable string keyed properties of `object` that
         * `predicate` doesn't return truthy for. The predicate is invoked with two
         * arguments: (value, key).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Object
         * @param {Object} object The source object.
         * @param {Function} [predicate=_.identity] The function invoked per property.
         * @returns {Object} Returns the new object.
         * @example
         *
         * var object = { 'a': 1, 'b': '2', 'c': 3 };
         *
         * _.omitBy(object, _.isNumber);
         * // => { 'b': '2' }
         */
        function omitBy(object, predicate) {
          return pickBy(object, negate(getIteratee(predicate)));
        }
    
        /**
         * Creates an object composed of the picked `object` properties.
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category Object
         * @param {Object} object The source object.
         * @param {...(string|string[])} [paths] The property paths to pick.
         * @returns {Object} Returns the new object.
         * @example
         *
         * var object = { 'a': 1, 'b': '2', 'c': 3 };
         *
         * _.pick(object, ['a', 'c']);
         * // => { 'a': 1, 'c': 3 }
         */
        var pick = flatRest(function(object, paths) {
          return object == null ? {} : basePick(object, paths);
        });
    
        /**
         * Creates an object composed of the `object` properties `predicate` returns
         * truthy for. The predicate is invoked with two arguments: (value, key).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Object
         * @param {Object} object The source object.
         * @param {Function} [predicate=_.identity] The function invoked per property.
         * @returns {Object} Returns the new object.
         * @example
         *
         * var object = { 'a': 1, 'b': '2', 'c': 3 };
         *
         * _.pickBy(object, _.isNumber);
         * // => { 'a': 1, 'c': 3 }
         */
        function pickBy(object, predicate) {
          if (object == null) {
            return {};
          }
          var props = arrayMap(getAllKeysIn(object), function(prop) {
            return [prop];
          });
          predicate = getIteratee(predicate);
          return basePickBy(object, props, function(value, path) {
            return predicate(value, path[0]);
          });
        }
    
        /**
         * This method is like `_.get` except that if the resolved value is a
         * function it's invoked with the `this` binding of its parent object and
         * its result is returned.
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category Object
         * @param {Object} object The object to query.
         * @param {Array|string} path The path of the property to resolve.
         * @param {*} [defaultValue] The value returned for `undefined` resolved values.
         * @returns {*} Returns the resolved value.
         * @example
         *
         * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] };
         *
         * _.result(object, 'a[0].b.c1');
         * // => 3
         *
         * _.result(object, 'a[0].b.c2');
         * // => 4
         *
         * _.result(object, 'a[0].b.c3', 'default');
         * // => 'default'
         *
         * _.result(object, 'a[0].b.c3', _.constant('default'));
         * // => 'default'
         */
        function result(object, path, defaultValue) {
          path = castPath(path, object);
    
          var index = -1,
              length = path.length;
    
          // Ensure the loop is entered when path is empty.
          if (!length) {
            length = 1;
            object = undefined;
          }
          while (++index < length) {
            var value = object == null ? undefined : object[toKey(path[index])];
            if (value === undefined) {
              index = length;
              value = defaultValue;
            }
            object = isFunction(value) ? value.call(object) : value;
          }
          return object;
        }
    
        /**
         * Sets the value at `path` of `object`. If a portion of `path` doesn't exist,
         * it's created. Arrays are created for missing index properties while objects
         * are created for all other missing properties. Use `_.setWith` to customize
         * `path` creation.
         *
         * **Note:** This method mutates `object`.
         *
         * @static
         * @memberOf _
         * @since 3.7.0
         * @category Object
         * @param {Object} object The object to modify.
         * @param {Array|string} path The path of the property to set.
         * @param {*} value The value to set.
         * @returns {Object} Returns `object`.
         * @example
         *
         * var object = { 'a': [{ 'b': { 'c': 3 } }] };
         *
         * _.set(object, 'a[0].b.c', 4);
         * console.log(object.a[0].b.c);
         * // => 4
         *
         * _.set(object, ['x', '0', 'y', 'z'], 5);
         * console.log(object.x[0].y.z);
         * // => 5
         */
        function set(object, path, value) {
          return object == null ? object : baseSet(object, path, value);
        }
    
        /**
         * This method is like `_.set` except that it accepts `customizer` which is
         * invoked to produce the objects of `path`.  If `customizer` returns `undefined`
         * path creation is handled by the method instead. The `customizer` is invoked
         * with three arguments: (nsValue, key, nsObject).
         *
         * **Note:** This method mutates `object`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Object
         * @param {Object} object The object to modify.
         * @param {Array|string} path The path of the property to set.
         * @param {*} value The value to set.
         * @param {Function} [customizer] The function to customize assigned values.
         * @returns {Object} Returns `object`.
         * @example
         *
         * var object = {};
         *
         * _.setWith(object, '[0][1]', 'a', Object);
         * // => { '0': { '1': 'a' } }
         */
        function setWith(object, path, value, customizer) {
          customizer = typeof customizer == 'function' ? customizer : undefined;
          return object == null ? object : baseSet(object, path, value, customizer);
        }
    
        /**
         * Creates an array of own enumerable string keyed-value pairs for `object`
         * which can be consumed by `_.fromPairs`. If `object` is a map or set, its
         * entries are returned.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @alias entries
         * @category Object
         * @param {Object} object The object to query.
         * @returns {Array} Returns the key-value pairs.
         * @example
         *
         * function Foo() {
         *   this.a = 1;
         *   this.b = 2;
         * }
         *
         * Foo.prototype.c = 3;
         *
         * _.toPairs(new Foo);
         * // => [['a', 1], ['b', 2]] (iteration order is not guaranteed)
         */
        var toPairs = createToPairs(keys);
    
        /**
         * Creates an array of own and inherited enumerable string keyed-value pairs
         * for `object` which can be consumed by `_.fromPairs`. If `object` is a map
         * or set, its entries are returned.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @alias entriesIn
         * @category Object
         * @param {Object} object The object to query.
         * @returns {Array} Returns the key-value pairs.
         * @example
         *
         * function Foo() {
         *   this.a = 1;
         *   this.b = 2;
         * }
         *
         * Foo.prototype.c = 3;
         *
         * _.toPairsIn(new Foo);
         * // => [['a', 1], ['b', 2], ['c', 3]] (iteration order is not guaranteed)
         */
        var toPairsIn = createToPairs(keysIn);
    
        /**
         * An alternative to `_.reduce`; this method transforms `object` to a new
         * `accumulator` object which is the result of running each of its own
         * enumerable string keyed properties thru `iteratee`, with each invocation
         * potentially mutating the `accumulator` object. If `accumulator` is not
         * provided, a new object with the same `[[Prototype]]` will be used. The
         * iteratee is invoked with four arguments: (accumulator, value, key, object).
         * Iteratee functions may exit iteration early by explicitly returning `false`.
         *
         * @static
         * @memberOf _
         * @since 1.3.0
         * @category Object
         * @param {Object} object The object to iterate over.
         * @param {Function} [iteratee=_.identity] The function invoked per iteration.
         * @param {*} [accumulator] The custom accumulator value.
         * @returns {*} Returns the accumulated value.
         * @example
         *
         * _.transform([2, 3, 4], function(result, n) {
         *   result.push(n *= n);
         *   return n % 2 == 0;
         * }, []);
         * // => [4, 9]
         *
         * _.transform({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {
         *   (result[value] || (result[value] = [])).push(key);
         * }, {});
         * // => { '1': ['a', 'c'], '2': ['b'] }
         */
        function transform(object, iteratee, accumulator) {
          var isArr = isArray(object),
              isArrLike = isArr || isBuffer(object) || isTypedArray(object);
    
          iteratee = getIteratee(iteratee, 4);
          if (accumulator == null) {
            var Ctor = object && object.constructor;
            if (isArrLike) {
              accumulator = isArr ? new Ctor : [];
            }
            else if (isObject(object)) {
              accumulator = isFunction(Ctor) ? baseCreate(getPrototype(object)) : {};
            }
            else {
              accumulator = {};
            }
          }
          (isArrLike ? arrayEach : baseForOwn)(object, function(value, index, object) {
            return iteratee(accumulator, value, index, object);
          });
          return accumulator;
        }
    
        /**
         * Removes the property at `path` of `object`.
         *
         * **Note:** This method mutates `object`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Object
         * @param {Object} object The object to modify.
         * @param {Array|string} path The path of the property to unset.
         * @returns {boolean} Returns `true` if the property is deleted, else `false`.
         * @example
         *
         * var object = { 'a': [{ 'b': { 'c': 7 } }] };
         * _.unset(object, 'a[0].b.c');
         * // => true
         *
         * console.log(object);
         * // => { 'a': [{ 'b': {} }] };
         *
         * _.unset(object, ['a', '0', 'b', 'c']);
         * // => true
         *
         * console.log(object);
         * // => { 'a': [{ 'b': {} }] };
         */
        function unset(object, path) {
          return object == null ? true : baseUnset(object, path);
        }
    
        /**
         * This method is like `_.set` except that accepts `updater` to produce the
         * value to set. Use `_.updateWith` to customize `path` creation. The `updater`
         * is invoked with one argument: (value).
         *
         * **Note:** This method mutates `object`.
         *
         * @static
         * @memberOf _
         * @since 4.6.0
         * @category Object
         * @param {Object} object The object to modify.
         * @param {Array|string} path The path of the property to set.
         * @param {Function} updater The function to produce the updated value.
         * @returns {Object} Returns `object`.
         * @example
         *
         * var object = { 'a': [{ 'b': { 'c': 3 } }] };
         *
         * _.update(object, 'a[0].b.c', function(n) { return n * n; });
         * console.log(object.a[0].b.c);
         * // => 9
         *
         * _.update(object, 'x[0].y.z', function(n) { return n ? n + 1 : 0; });
         * console.log(object.x[0].y.z);
         * // => 0
         */
        function update(object, path, updater) {
          return object == null ? object : baseUpdate(object, path, castFunction(updater));
        }
    
        /**
         * This method is like `_.update` except that it accepts `customizer` which is
         * invoked to produce the objects of `path`.  If `customizer` returns `undefined`
         * path creation is handled by the method instead. The `customizer` is invoked
         * with three arguments: (nsValue, key, nsObject).
         *
         * **Note:** This method mutates `object`.
         *
         * @static
         * @memberOf _
         * @since 4.6.0
         * @category Object
         * @param {Object} object The object to modify.
         * @param {Array|string} path The path of the property to set.
         * @param {Function} updater The function to produce the updated value.
         * @param {Function} [customizer] The function to customize assigned values.
         * @returns {Object} Returns `object`.
         * @example
         *
         * var object = {};
         *
         * _.updateWith(object, '[0][1]', _.constant('a'), Object);
         * // => { '0': { '1': 'a' } }
         */
        function updateWith(object, path, updater, customizer) {
          customizer = typeof customizer == 'function' ? customizer : undefined;
          return object == null ? object : baseUpdate(object, path, castFunction(updater), customizer);
        }
    
        /**
         * Creates an array of the own enumerable string keyed property values of `object`.
         *
         * **Note:** Non-object values are coerced to objects.
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category Object
         * @param {Object} object The object to query.
         * @returns {Array} Returns the array of property values.
         * @example
         *
         * function Foo() {
         *   this.a = 1;
         *   this.b = 2;
         * }
         *
         * Foo.prototype.c = 3;
         *
         * _.values(new Foo);
         * // => [1, 2] (iteration order is not guaranteed)
         *
         * _.values('hi');
         * // => ['h', 'i']
         */
        function values(object) {
          return object == null ? [] : baseValues(object, keys(object));
        }
    
        /**
         * Creates an array of the own and inherited enumerable string keyed property
         * values of `object`.
         *
         * **Note:** Non-object values are coerced to objects.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Object
         * @param {Object} object The object to query.
         * @returns {Array} Returns the array of property values.
         * @example
         *
         * function Foo() {
         *   this.a = 1;
         *   this.b = 2;
         * }
         *
         * Foo.prototype.c = 3;
         *
         * _.valuesIn(new Foo);
         * // => [1, 2, 3] (iteration order is not guaranteed)
         */
        function valuesIn(object) {
          return object == null ? [] : baseValues(object, keysIn(object));
        }
    
        /*------------------------------------------------------------------------*/
    
        /**
         * Clamps `number` within the inclusive `lower` and `upper` bounds.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Number
         * @param {number} number The number to clamp.
         * @param {number} [lower] The lower bound.
         * @param {number} upper The upper bound.
         * @returns {number} Returns the clamped number.
         * @example
         *
         * _.clamp(-10, -5, 5);
         * // => -5
         *
         * _.clamp(10, -5, 5);
         * // => 5
         */
        function clamp(number, lower, upper) {
          if (upper === undefined) {
            upper = lower;
            lower = undefined;
          }
          if (upper !== undefined) {
            upper = toNumber(upper);
            upper = upper === upper ? upper : 0;
          }
          if (lower !== undefined) {
            lower = toNumber(lower);
            lower = lower === lower ? lower : 0;
          }
          return baseClamp(toNumber(number), lower, upper);
        }
    
        /**
         * Checks if `n` is between `start` and up to, but not including, `end`. If
         * `end` is not specified, it's set to `start` with `start` then set to `0`.
         * If `start` is greater than `end` the params are swapped to support
         * negative ranges.
         *
         * @static
         * @memberOf _
         * @since 3.3.0
         * @category Number
         * @param {number} number The number to check.
         * @param {number} [start=0] The start of the range.
         * @param {number} end The end of the range.
         * @returns {boolean} Returns `true` if `number` is in the range, else `false`.
         * @see _.range, _.rangeRight
         * @example
         *
         * _.inRange(3, 2, 4);
         * // => true
         *
         * _.inRange(4, 8);
         * // => true
         *
         * _.inRange(4, 2);
         * // => false
         *
         * _.inRange(2, 2);
         * // => false
         *
         * _.inRange(1.2, 2);
         * // => true
         *
         * _.inRange(5.2, 4);
         * // => false
         *
         * _.inRange(-3, -2, -6);
         * // => true
         */
        function inRange(number, start, end) {
          start = toFinite(start);
          if (end === undefined) {
            end = start;
            start = 0;
          } else {
            end = toFinite(end);
          }
          number = toNumber(number);
          return baseInRange(number, start, end);
        }
    
        /**
         * Produces a random number between the inclusive `lower` and `upper` bounds.
         * If only one argument is provided a number between `0` and the given number
         * is returned. If `floating` is `true`, or either `lower` or `upper` are
         * floats, a floating-point number is returned instead of an integer.
         *
         * **Note:** JavaScript follows the IEEE-754 standard for resolving
         * floating-point values which can produce unexpected results.
         *
         * @static
         * @memberOf _
         * @since 0.7.0
         * @category Number
         * @param {number} [lower=0] The lower bound.
         * @param {number} [upper=1] The upper bound.
         * @param {boolean} [floating] Specify returning a floating-point number.
         * @returns {number} Returns the random number.
         * @example
         *
         * _.random(0, 5);
         * // => an integer between 0 and 5
         *
         * _.random(5);
         * // => also an integer between 0 and 5
         *
         * _.random(5, true);
         * // => a floating-point number between 0 and 5
         *
         * _.random(1.2, 5.2);
         * // => a floating-point number between 1.2 and 5.2
         */
        function random(lower, upper, floating) {
          if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) {
            upper = floating = undefined;
          }
          if (floating === undefined) {
            if (typeof upper == 'boolean') {
              floating = upper;
              upper = undefined;
            }
            else if (typeof lower == 'boolean') {
              floating = lower;
              lower = undefined;
            }
          }
          if (lower === undefined && upper === undefined) {
            lower = 0;
            upper = 1;
          }
          else {
            lower = toFinite(lower);
            if (upper === undefined) {
              upper = lower;
              lower = 0;
            } else {
              upper = toFinite(upper);
            }
          }
          if (lower > upper) {
            var temp = lower;
            lower = upper;
            upper = temp;
          }
          if (floating || lower % 1 || upper % 1) {
            var rand = nativeRandom();
            return nativeMin(lower + (rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1)))), upper);
          }
          return baseRandom(lower, upper);
        }
    
        /*------------------------------------------------------------------------*/
    
        /**
         * Converts `string` to [camel case](https://en.wikipedia.org/wiki/CamelCase).
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category String
         * @param {string} [string=''] The string to convert.
         * @returns {string} Returns the camel cased string.
         * @example
         *
         * _.camelCase('Foo Bar');
         * // => 'fooBar'
         *
         * _.camelCase('--foo-bar--');
         * // => 'fooBar'
         *
         * _.camelCase('__FOO_BAR__');
         * // => 'fooBar'
         */
        var camelCase = createCompounder(function(result, word, index) {
          word = word.toLowerCase();
          return result + (index ? capitalize(word) : word);
        });
    
        /**
         * Converts the first character of `string` to upper case and the remaining
         * to lower case.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category String
         * @param {string} [string=''] The string to capitalize.
         * @returns {string} Returns the capitalized string.
         * @example
         *
         * _.capitalize('FRED');
         * // => 'Fred'
         */
        function capitalize(string) {
          return upperFirst(toString(string).toLowerCase());
        }
    
        /**
         * Deburrs `string` by converting
         * [Latin-1 Supplement](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table)
         * and [Latin Extended-A](https://en.wikipedia.org/wiki/Latin_Extended-A)
         * letters to basic Latin letters and removing
         * [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks).
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category String
         * @param {string} [string=''] The string to deburr.
         * @returns {string} Returns the deburred string.
         * @example
         *
         * _.deburr('déjà vu');
         * // => 'deja vu'
         */
        function deburr(string) {
          string = toString(string);
          return string && string.replace(reLatin, deburrLetter).replace(reComboMark, '');
        }
    
        /**
         * Checks if `string` ends with the given target string.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category String
         * @param {string} [string=''] The string to inspect.
         * @param {string} [target] The string to search for.
         * @param {number} [position=string.length] The position to search up to.
         * @returns {boolean} Returns `true` if `string` ends with `target`,
         *  else `false`.
         * @example
         *
         * _.endsWith('abc', 'c');
         * // => true
         *
         * _.endsWith('abc', 'b');
         * // => false
         *
         * _.endsWith('abc', 'b', 2);
         * // => true
         */
        function endsWith(string, target, position) {
          string = toString(string);
          target = baseToString(target);
    
          var length = string.length;
          position = position === undefined
            ? length
            : baseClamp(toInteger(position), 0, length);
    
          var end = position;
          position -= target.length;
          return position >= 0 && string.slice(position, end) == target;
        }
    
        /**
         * Converts the characters "&", "<", ">", '"', and "'" in `string` to their
         * corresponding HTML entities.
         *
         * **Note:** No other characters are escaped. To escape additional
         * characters use a third-party library like [_he_](https://mths.be/he).
         *
         * Though the ">" character is escaped for symmetry, characters like
         * ">" and "/" don't need escaping in HTML and have no special meaning
         * unless they're part of a tag or unquoted attribute value. See
         * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands)
         * (under "semi-related fun fact") for more details.
         *
         * When working with HTML you should always
         * [quote attribute values](http://wonko.com/post/html-escaping) to reduce
         * XSS vectors.
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category String
         * @param {string} [string=''] The string to escape.
         * @returns {string} Returns the escaped string.
         * @example
         *
         * _.escape('fred, barney, & pebbles');
         * // => 'fred, barney, &amp; pebbles'
         */
        function escape(string) {
          string = toString(string);
          return (string && reHasUnescapedHtml.test(string))
            ? string.replace(reUnescapedHtml, escapeHtmlChar)
            : string;
        }
    
        /**
         * Escapes the `RegExp` special characters "^", "$", "\", ".", "*", "+",
         * "?", "(", ")", "[", "]", "{", "}", and "|" in `string`.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category String
         * @param {string} [string=''] The string to escape.
         * @returns {string} Returns the escaped string.
         * @example
         *
         * _.escapeRegExp('[lodash](https://lodash.com/)');
         * // => '\[lodash\]\(https://lodash\.com/\)'
         */
        function escapeRegExp(string) {
          string = toString(string);
          return (string && reHasRegExpChar.test(string))
            ? string.replace(reRegExpChar, '\\$&')
            : string;
        }
    
        /**
         * Converts `string` to
         * [kebab case](https://en.wikipedia.org/wiki/Letter_case#Special_case_styles).
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category String
         * @param {string} [string=''] The string to convert.
         * @returns {string} Returns the kebab cased string.
         * @example
         *
         * _.kebabCase('Foo Bar');
         * // => 'foo-bar'
         *
         * _.kebabCase('fooBar');
         * // => 'foo-bar'
         *
         * _.kebabCase('__FOO_BAR__');
         * // => 'foo-bar'
         */
        var kebabCase = createCompounder(function(result, word, index) {
          return result + (index ? '-' : '') + word.toLowerCase();
        });
    
        /**
         * Converts `string`, as space separated words, to lower case.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category String
         * @param {string} [string=''] The string to convert.
         * @returns {string} Returns the lower cased string.
         * @example
         *
         * _.lowerCase('--Foo-Bar--');
         * // => 'foo bar'
         *
         * _.lowerCase('fooBar');
         * // => 'foo bar'
         *
         * _.lowerCase('__FOO_BAR__');
         * // => 'foo bar'
         */
        var lowerCase = createCompounder(function(result, word, index) {
          return result + (index ? ' ' : '') + word.toLowerCase();
        });
    
        /**
         * Converts the first character of `string` to lower case.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category String
         * @param {string} [string=''] The string to convert.
         * @returns {string} Returns the converted string.
         * @example
         *
         * _.lowerFirst('Fred');
         * // => 'fred'
         *
         * _.lowerFirst('FRED');
         * // => 'fRED'
         */
        var lowerFirst = createCaseFirst('toLowerCase');
    
        /**
         * Pads `string` on the left and right sides if it's shorter than `length`.
         * Padding characters are truncated if they can't be evenly divided by `length`.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category String
         * @param {string} [string=''] The string to pad.
         * @param {number} [length=0] The padding length.
         * @param {string} [chars=' '] The string used as padding.
         * @returns {string} Returns the padded string.
         * @example
         *
         * _.pad('abc', 8);
         * // => '  abc   '
         *
         * _.pad('abc', 8, '_-');
         * // => '_-abc_-_'
         *
         * _.pad('abc', 3);
         * // => 'abc'
         */
        function pad(string, length, chars) {
          string = toString(string);
          length = toInteger(length);
    
          var strLength = length ? stringSize(string) : 0;
          if (!length || strLength >= length) {
            return string;
          }
          var mid = (length - strLength) / 2;
          return (
            createPadding(nativeFloor(mid), chars) +
            string +
            createPadding(nativeCeil(mid), chars)
          );
        }
    
        /**
         * Pads `string` on the right side if it's shorter than `length`. Padding
         * characters are truncated if they exceed `length`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category String
         * @param {string} [string=''] The string to pad.
         * @param {number} [length=0] The padding length.
         * @param {string} [chars=' '] The string used as padding.
         * @returns {string} Returns the padded string.
         * @example
         *
         * _.padEnd('abc', 6);
         * // => 'abc   '
         *
         * _.padEnd('abc', 6, '_-');
         * // => 'abc_-_'
         *
         * _.padEnd('abc', 3);
         * // => 'abc'
         */
        function padEnd(string, length, chars) {
          string = toString(string);
          length = toInteger(length);
    
          var strLength = length ? stringSize(string) : 0;
          return (length && strLength < length)
            ? (string + createPadding(length - strLength, chars))
            : string;
        }
    
        /**
         * Pads `string` on the left side if it's shorter than `length`. Padding
         * characters are truncated if they exceed `length`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category String
         * @param {string} [string=''] The string to pad.
         * @param {number} [length=0] The padding length.
         * @param {string} [chars=' '] The string used as padding.
         * @returns {string} Returns the padded string.
         * @example
         *
         * _.padStart('abc', 6);
         * // => '   abc'
         *
         * _.padStart('abc', 6, '_-');
         * // => '_-_abc'
         *
         * _.padStart('abc', 3);
         * // => 'abc'
         */
        function padStart(string, length, chars) {
          string = toString(string);
          length = toInteger(length);
    
          var strLength = length ? stringSize(string) : 0;
          return (length && strLength < length)
            ? (createPadding(length - strLength, chars) + string)
            : string;
        }
    
        /**
         * Converts `string` to an integer of the specified radix. If `radix` is
         * `undefined` or `0`, a `radix` of `10` is used unless `value` is a
         * hexadecimal, in which case a `radix` of `16` is used.
         *
         * **Note:** This method aligns with the
         * [ES5 implementation](https://es5.github.io/#x15.1.2.2) of `parseInt`.
         *
         * @static
         * @memberOf _
         * @since 1.1.0
         * @category String
         * @param {string} string The string to convert.
         * @param {number} [radix=10] The radix to interpret `value` by.
         * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
         * @returns {number} Returns the converted integer.
         * @example
         *
         * _.parseInt('08');
         * // => 8
         *
         * _.map(['6', '08', '10'], _.parseInt);
         * // => [6, 8, 10]
         */
        function parseInt(string, radix, guard) {
          if (guard || radix == null) {
            radix = 0;
          } else if (radix) {
            radix = +radix;
          }
          return nativeParseInt(toString(string).replace(reTrimStart, ''), radix || 0);
        }
    
        /**
         * Repeats the given string `n` times.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category String
         * @param {string} [string=''] The string to repeat.
         * @param {number} [n=1] The number of times to repeat the string.
         * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
         * @returns {string} Returns the repeated string.
         * @example
         *
         * _.repeat('*', 3);
         * // => '***'
         *
         * _.repeat('abc', 2);
         * // => 'abcabc'
         *
         * _.repeat('abc', 0);
         * // => ''
         */
        function repeat(string, n, guard) {
          if ((guard ? isIterateeCall(string, n, guard) : n === undefined)) {
            n = 1;
          } else {
            n = toInteger(n);
          }
          return baseRepeat(toString(string), n);
        }
    
        /**
         * Replaces matches for `pattern` in `string` with `replacement`.
         *
         * **Note:** This method is based on
         * [`String#replace`](https://mdn.io/String/replace).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category String
         * @param {string} [string=''] The string to modify.
         * @param {RegExp|string} pattern The pattern to replace.
         * @param {Function|string} replacement The match replacement.
         * @returns {string} Returns the modified string.
         * @example
         *
         * _.replace('Hi Fred', 'Fred', 'Barney');
         * // => 'Hi Barney'
         */
        function replace() {
          var args = arguments,
              string = toString(args[0]);
    
          return args.length < 3 ? string : string.replace(args[1], args[2]);
        }
    
        /**
         * Converts `string` to
         * [snake case](https://en.wikipedia.org/wiki/Snake_case).
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category String
         * @param {string} [string=''] The string to convert.
         * @returns {string} Returns the snake cased string.
         * @example
         *
         * _.snakeCase('Foo Bar');
         * // => 'foo_bar'
         *
         * _.snakeCase('fooBar');
         * // => 'foo_bar'
         *
         * _.snakeCase('--FOO-BAR--');
         * // => 'foo_bar'
         */
        var snakeCase = createCompounder(function(result, word, index) {
          return result + (index ? '_' : '') + word.toLowerCase();
        });
    
        /**
         * Splits `string` by `separator`.
         *
         * **Note:** This method is based on
         * [`String#split`](https://mdn.io/String/split).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category String
         * @param {string} [string=''] The string to split.
         * @param {RegExp|string} separator The separator pattern to split by.
         * @param {number} [limit] The length to truncate results to.
         * @returns {Array} Returns the string segments.
         * @example
         *
         * _.split('a-b-c', '-', 2);
         * // => ['a', 'b']
         */
        function split(string, separator, limit) {
          if (limit && typeof limit != 'number' && isIterateeCall(string, separator, limit)) {
            separator = limit = undefined;
          }
          limit = limit === undefined ? MAX_ARRAY_LENGTH : limit >>> 0;
          if (!limit) {
            return [];
          }
          string = toString(string);
          if (string && (
                typeof separator == 'string' ||
                (separator != null && !isRegExp(separator))
              )) {
            separator = baseToString(separator);
            if (!separator && hasUnicode(string)) {
              return castSlice(stringToArray(string), 0, limit);
            }
          }
          return string.split(separator, limit);
        }
    
        /**
         * Converts `string` to
         * [start case](https://en.wikipedia.org/wiki/Letter_case#Stylistic_or_specialised_usage).
         *
         * @static
         * @memberOf _
         * @since 3.1.0
         * @category String
         * @param {string} [string=''] The string to convert.
         * @returns {string} Returns the start cased string.
         * @example
         *
         * _.startCase('--foo-bar--');
         * // => 'Foo Bar'
         *
         * _.startCase('fooBar');
         * // => 'Foo Bar'
         *
         * _.startCase('__FOO_BAR__');
         * // => 'FOO BAR'
         */
        var startCase = createCompounder(function(result, word, index) {
          return result + (index ? ' ' : '') + upperFirst(word);
        });
    
        /**
         * Checks if `string` starts with the given target string.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category String
         * @param {string} [string=''] The string to inspect.
         * @param {string} [target] The string to search for.
         * @param {number} [position=0] The position to search from.
         * @returns {boolean} Returns `true` if `string` starts with `target`,
         *  else `false`.
         * @example
         *
         * _.startsWith('abc', 'a');
         * // => true
         *
         * _.startsWith('abc', 'b');
         * // => false
         *
         * _.startsWith('abc', 'b', 1);
         * // => true
         */
        function startsWith(string, target, position) {
          string = toString(string);
          position = position == null
            ? 0
            : baseClamp(toInteger(position), 0, string.length);
    
          target = baseToString(target);
          return string.slice(position, position + target.length) == target;
        }
    
        /**
         * Creates a compiled template function that can interpolate data properties
         * in "interpolate" delimiters, HTML-escape interpolated data properties in
         * "escape" delimiters, and execute JavaScript in "evaluate" delimiters. Data
         * properties may be accessed as free variables in the template. If a setting
         * object is given, it takes precedence over `_.templateSettings` values.
         *
         * **Note:** In the development build `_.template` utilizes
         * [sourceURLs](http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl)
         * for easier debugging.
         *
         * For more information on precompiling templates see
         * [lodash's custom builds documentation](https://lodash.com/custom-builds).
         *
         * For more information on Chrome extension sandboxes see
         * [Chrome's extensions documentation](https://developer.chrome.com/extensions/sandboxingEval).
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category String
         * @param {string} [string=''] The template string.
         * @param {Object} [options={}] The options object.
         * @param {RegExp} [options.escape=_.templateSettings.escape]
         *  The HTML "escape" delimiter.
         * @param {RegExp} [options.evaluate=_.templateSettings.evaluate]
         *  The "evaluate" delimiter.
         * @param {Object} [options.imports=_.templateSettings.imports]
         *  An object to import into the template as free variables.
         * @param {RegExp} [options.interpolate=_.templateSettings.interpolate]
         *  The "interpolate" delimiter.
         * @param {string} [options.sourceURL='lodash.templateSources[n]']
         *  The sourceURL of the compiled template.
         * @param {string} [options.variable='obj']
         *  The data object variable name.
         * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
         * @returns {Function} Returns the compiled template function.
         * @example
         *
         * // Use the "interpolate" delimiter to create a compiled template.
         * var compiled = _.template('hello <%= user %>!');
         * compiled({ 'user': 'fred' });
         * // => 'hello fred!'
         *
         * // Use the HTML "escape" delimiter to escape data property values.
         * var compiled = _.template('<b><%- value %></b>');
         * compiled({ 'value': '<script>' });
         * // => '<b>&lt;script&gt;</b>'
         *
         * // Use the "evaluate" delimiter to execute JavaScript and generate HTML.
         * var compiled = _.template('<% _.forEach(users, function(user) { %><li><%- user %></li><% }); %>');
         * compiled({ 'users': ['fred', 'barney'] });
         * // => '<li>fred</li><li>barney</li>'
         *
         * // Use the internal `print` function in "evaluate" delimiters.
         * var compiled = _.template('<% print("hello " + user); %>!');
         * compiled({ 'user': 'barney' });
         * // => 'hello barney!'
         *
         * // Use the ES template literal delimiter as an "interpolate" delimiter.
         * // Disable support by replacing the "interpolate" delimiter.
         * var compiled = _.template('hello ${ user }!');
         * compiled({ 'user': 'pebbles' });
         * // => 'hello pebbles!'
         *
         * // Use backslashes to treat delimiters as plain text.
         * var compiled = _.template('<%= "\\<%- value %\\>" %>');
         * compiled({ 'value': 'ignored' });
         * // => '<%- value %>'
         *
         * // Use the `imports` option to import `jQuery` as `jq`.
         * var text = '<% jq.each(users, function(user) { %><li><%- user %></li><% }); %>';
         * var compiled = _.template(text, { 'imports': { 'jq': jQuery } });
         * compiled({ 'users': ['fred', 'barney'] });
         * // => '<li>fred</li><li>barney</li>'
         *
         * // Use the `sourceURL` option to specify a custom sourceURL for the template.
         * var compiled = _.template('hello <%= user %>!', { 'sourceURL': '/basic/greeting.jst' });
         * compiled(data);
         * // => Find the source of "greeting.jst" under the Sources tab or Resources panel of the web inspector.
         *
         * // Use the `variable` option to ensure a with-statement isn't used in the compiled template.
         * var compiled = _.template('hi <%= data.user %>!', { 'variable': 'data' });
         * compiled.source;
         * // => function(data) {
         * //   var __t, __p = '';
         * //   __p += 'hi ' + ((__t = ( data.user )) == null ? '' : __t) + '!';
         * //   return __p;
         * // }
         *
         * // Use custom template delimiters.
         * _.templateSettings.interpolate = /{{([\s\S]+?)}}/g;
         * var compiled = _.template('hello {{ user }}!');
         * compiled({ 'user': 'mustache' });
         * // => 'hello mustache!'
         *
         * // Use the `source` property to inline compiled templates for meaningful
         * // line numbers in error messages and stack traces.
         * fs.writeFileSync(path.join(process.cwd(), 'jst.js'), '\
         *   var JST = {\
         *     "main": ' + _.template(mainText).source + '\
         *   };\
         * ');
         */
        function template(string, options, guard) {
          // Based on John Resig's `tmpl` implementation
          // (http://ejohn.org/blog/javascript-micro-templating/)
          // and Laura Doktorova's doT.js (https://github.com/olado/doT).
          var settings = lodash.templateSettings;
    
          if (guard && isIterateeCall(string, options, guard)) {
            options = undefined;
          }
          string = toString(string);
          options = assignInWith({}, options, settings, customDefaultsAssignIn);
    
          var imports = assignInWith({}, options.imports, settings.imports, customDefaultsAssignIn),
              importsKeys = keys(imports),
              importsValues = baseValues(imports, importsKeys);
    
          var isEscaping,
              isEvaluating,
              index = 0,
              interpolate = options.interpolate || reNoMatch,
              source = "__p += '";
    
          // Compile the regexp to match each delimiter.
          var reDelimiters = RegExp(
            (options.escape || reNoMatch).source + '|' +
            interpolate.source + '|' +
            (interpolate === reInterpolate ? reEsTemplate : reNoMatch).source + '|' +
            (options.evaluate || reNoMatch).source + '|$'
          , 'g');
    
          // Use a sourceURL for easier debugging.
          // The sourceURL gets injected into the source that's eval-ed, so be careful
          // with lookup (in case of e.g. prototype pollution), and strip newlines if any.
          // A newline wouldn't be a valid sourceURL anyway, and it'd enable code injection.
          var sourceURL = '//# sourceURL=' +
            (hasOwnProperty.call(options, 'sourceURL')
              ? (options.sourceURL + '').replace(/[\r\n]/g, ' ')
              : ('lodash.templateSources[' + (++templateCounter) + ']')
            ) + '\n';
    
          string.replace(reDelimiters, function(match, escapeValue, interpolateValue, esTemplateValue, evaluateValue, offset) {
            interpolateValue || (interpolateValue = esTemplateValue);
    
            // Escape characters that can't be included in string literals.
            source += string.slice(index, offset).replace(reUnescapedString, escapeStringChar);
    
            // Replace delimiters with snippets.
            if (escapeValue) {
              isEscaping = true;
              source += "' +\n__e(" + escapeValue + ") +\n'";
            }
            if (evaluateValue) {
              isEvaluating = true;
              source += "';\n" + evaluateValue + ";\n__p += '";
            }
            if (interpolateValue) {
              source += "' +\n((__t = (" + interpolateValue + ")) == null ? '' : __t) +\n'";
            }
            index = offset + match.length;
    
            // The JS engine embedded in Adobe products needs `match` returned in
            // order to produce the correct `offset` value.
            return match;
          });
    
          source += "';\n";
    
          // If `variable` is not specified wrap a with-statement around the generated
          // code to add the data object to the top of the scope chain.
          // Like with sourceURL, we take care to not check the option's prototype,
          // as this configuration is a code injection vector.
          var variable = hasOwnProperty.call(options, 'variable') && options.variable;
          if (!variable) {
            source = 'with (obj) {\n' + source + '\n}\n';
          }
          // Cleanup code by stripping empty strings.
          source = (isEvaluating ? source.replace(reEmptyStringLeading, '') : source)
            .replace(reEmptyStringMiddle, '$1')
            .replace(reEmptyStringTrailing, '$1;');
    
          // Frame code as the function body.
          source = 'function(' + (variable || 'obj') + ') {\n' +
            (variable
              ? ''
              : 'obj || (obj = {});\n'
            ) +
            "var __t, __p = ''" +
            (isEscaping
               ? ', __e = _.escape'
               : ''
            ) +
            (isEvaluating
              ? ', __j = Array.prototype.join;\n' +
                "function print() { __p += __j.call(arguments, '') }\n"
              : ';\n'
            ) +
            source +
            'return __p\n}';
    
          var result = attempt(function() {
            return Function(importsKeys, sourceURL + 'return ' + source)
              .apply(undefined, importsValues);
          });
    
          // Provide the compiled function's source by its `toString` method or
          // the `source` property as a convenience for inlining compiled templates.
          result.source = source;
          if (isError(result)) {
            throw result;
          }
          return result;
        }
    
        /**
         * Converts `string`, as a whole, to lower case just like
         * [String#toLowerCase](https://mdn.io/toLowerCase).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category String
         * @param {string} [string=''] The string to convert.
         * @returns {string} Returns the lower cased string.
         * @example
         *
         * _.toLower('--Foo-Bar--');
         * // => '--foo-bar--'
         *
         * _.toLower('fooBar');
         * // => 'foobar'
         *
         * _.toLower('__FOO_BAR__');
         * // => '__foo_bar__'
         */
        function toLower(value) {
          return toString(value).toLowerCase();
        }
    
        /**
         * Converts `string`, as a whole, to upper case just like
         * [String#toUpperCase](https://mdn.io/toUpperCase).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category String
         * @param {string} [string=''] The string to convert.
         * @returns {string} Returns the upper cased string.
         * @example
         *
         * _.toUpper('--foo-bar--');
         * // => '--FOO-BAR--'
         *
         * _.toUpper('fooBar');
         * // => 'FOOBAR'
         *
         * _.toUpper('__foo_bar__');
         * // => '__FOO_BAR__'
         */
        function toUpper(value) {
          return toString(value).toUpperCase();
        }
    
        /**
         * Removes leading and trailing whitespace or specified characters from `string`.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category String
         * @param {string} [string=''] The string to trim.
         * @param {string} [chars=whitespace] The characters to trim.
         * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
         * @returns {string} Returns the trimmed string.
         * @example
         *
         * _.trim('  abc  ');
         * // => 'abc'
         *
         * _.trim('-_-abc-_-', '_-');
         * // => 'abc'
         *
         * _.map(['  foo  ', '  bar  '], _.trim);
         * // => ['foo', 'bar']
         */
        function trim(string, chars, guard) {
          string = toString(string);
          if (string && (guard || chars === undefined)) {
            return string.replace(reTrim, '');
          }
          if (!string || !(chars = baseToString(chars))) {
            return string;
          }
          var strSymbols = stringToArray(string),
              chrSymbols = stringToArray(chars),
              start = charsStartIndex(strSymbols, chrSymbols),
              end = charsEndIndex(strSymbols, chrSymbols) + 1;
    
          return castSlice(strSymbols, start, end).join('');
        }
    
        /**
         * Removes trailing whitespace or specified characters from `string`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category String
         * @param {string} [string=''] The string to trim.
         * @param {string} [chars=whitespace] The characters to trim.
         * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
         * @returns {string} Returns the trimmed string.
         * @example
         *
         * _.trimEnd('  abc  ');
         * // => '  abc'
         *
         * _.trimEnd('-_-abc-_-', '_-');
         * // => '-_-abc'
         */
        function trimEnd(string, chars, guard) {
          string = toString(string);
          if (string && (guard || chars === undefined)) {
            return string.replace(reTrimEnd, '');
          }
          if (!string || !(chars = baseToString(chars))) {
            return string;
          }
          var strSymbols = stringToArray(string),
              end = charsEndIndex(strSymbols, stringToArray(chars)) + 1;
    
          return castSlice(strSymbols, 0, end).join('');
        }
    
        /**
         * Removes leading whitespace or specified characters from `string`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category String
         * @param {string} [string=''] The string to trim.
         * @param {string} [chars=whitespace] The characters to trim.
         * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
         * @returns {string} Returns the trimmed string.
         * @example
         *
         * _.trimStart('  abc  ');
         * // => 'abc  '
         *
         * _.trimStart('-_-abc-_-', '_-');
         * // => 'abc-_-'
         */
        function trimStart(string, chars, guard) {
          string = toString(string);
          if (string && (guard || chars === undefined)) {
            return string.replace(reTrimStart, '');
          }
          if (!string || !(chars = baseToString(chars))) {
            return string;
          }
          var strSymbols = stringToArray(string),
              start = charsStartIndex(strSymbols, stringToArray(chars));
    
          return castSlice(strSymbols, start).join('');
        }
    
        /**
         * Truncates `string` if it's longer than the given maximum string length.
         * The last characters of the truncated string are replaced with the omission
         * string which defaults to "...".
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category String
         * @param {string} [string=''] The string to truncate.
         * @param {Object} [options={}] The options object.
         * @param {number} [options.length=30] The maximum string length.
         * @param {string} [options.omission='...'] The string to indicate text is omitted.
         * @param {RegExp|string} [options.separator] The separator pattern to truncate to.
         * @returns {string} Returns the truncated string.
         * @example
         *
         * _.truncate('hi-diddly-ho there, neighborino');
         * // => 'hi-diddly-ho there, neighbo...'
         *
         * _.truncate('hi-diddly-ho there, neighborino', {
         *   'length': 24,
         *   'separator': ' '
         * });
         * // => 'hi-diddly-ho there,...'
         *
         * _.truncate('hi-diddly-ho there, neighborino', {
         *   'length': 24,
         *   'separator': /,? +/
         * });
         * // => 'hi-diddly-ho there...'
         *
         * _.truncate('hi-diddly-ho there, neighborino', {
         *   'omission': ' [...]'
         * });
         * // => 'hi-diddly-ho there, neig [...]'
         */
        function truncate(string, options) {
          var length = DEFAULT_TRUNC_LENGTH,
              omission = DEFAULT_TRUNC_OMISSION;
    
          if (isObject(options)) {
            var separator = 'separator' in options ? options.separator : separator;
            length = 'length' in options ? toInteger(options.length) : length;
            omission = 'omission' in options ? baseToString(options.omission) : omission;
          }
          string = toString(string);
    
          var strLength = string.length;
          if (hasUnicode(string)) {
            var strSymbols = stringToArray(string);
            strLength = strSymbols.length;
          }
          if (length >= strLength) {
            return string;
          }
          var end = length - stringSize(omission);
          if (end < 1) {
            return omission;
          }
          var result = strSymbols
            ? castSlice(strSymbols, 0, end).join('')
            : string.slice(0, end);
    
          if (separator === undefined) {
            return result + omission;
          }
          if (strSymbols) {
            end += (result.length - end);
          }
          if (isRegExp(separator)) {
            if (string.slice(end).search(separator)) {
              var match,
                  substring = result;
    
              if (!separator.global) {
                separator = RegExp(separator.source, toString(reFlags.exec(separator)) + 'g');
              }
              separator.lastIndex = 0;
              while ((match = separator.exec(substring))) {
                var newEnd = match.index;
              }
              result = result.slice(0, newEnd === undefined ? end : newEnd);
            }
          } else if (string.indexOf(baseToString(separator), end) != end) {
            var index = result.lastIndexOf(separator);
            if (index > -1) {
              result = result.slice(0, index);
            }
          }
          return result + omission;
        }
    
        /**
         * The inverse of `_.escape`; this method converts the HTML entities
         * `&amp;`, `&lt;`, `&gt;`, `&quot;`, and `&#39;` in `string` to
         * their corresponding characters.
         *
         * **Note:** No other HTML entities are unescaped. To unescape additional
         * HTML entities use a third-party library like [_he_](https://mths.be/he).
         *
         * @static
         * @memberOf _
         * @since 0.6.0
         * @category String
         * @param {string} [string=''] The string to unescape.
         * @returns {string} Returns the unescaped string.
         * @example
         *
         * _.unescape('fred, barney, &amp; pebbles');
         * // => 'fred, barney, & pebbles'
         */
        function unescape(string) {
          string = toString(string);
          return (string && reHasEscapedHtml.test(string))
            ? string.replace(reEscapedHtml, unescapeHtmlChar)
            : string;
        }
    
        /**
         * Converts `string`, as space separated words, to upper case.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category String
         * @param {string} [string=''] The string to convert.
         * @returns {string} Returns the upper cased string.
         * @example
         *
         * _.upperCase('--foo-bar');
         * // => 'FOO BAR'
         *
         * _.upperCase('fooBar');
         * // => 'FOO BAR'
         *
         * _.upperCase('__foo_bar__');
         * // => 'FOO BAR'
         */
        var upperCase = createCompounder(function(result, word, index) {
          return result + (index ? ' ' : '') + word.toUpperCase();
        });
    
        /**
         * Converts the first character of `string` to upper case.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category String
         * @param {string} [string=''] The string to convert.
         * @returns {string} Returns the converted string.
         * @example
         *
         * _.upperFirst('fred');
         * // => 'Fred'
         *
         * _.upperFirst('FRED');
         * // => 'FRED'
         */
        var upperFirst = createCaseFirst('toUpperCase');
    
        /**
         * Splits `string` into an array of its words.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category String
         * @param {string} [string=''] The string to inspect.
         * @param {RegExp|string} [pattern] The pattern to match words.
         * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
         * @returns {Array} Returns the words of `string`.
         * @example
         *
         * _.words('fred, barney, & pebbles');
         * // => ['fred', 'barney', 'pebbles']
         *
         * _.words('fred, barney, & pebbles', /[^, ]+/g);
         * // => ['fred', 'barney', '&', 'pebbles']
         */
        function words(string, pattern, guard) {
          string = toString(string);
          pattern = guard ? undefined : pattern;
    
          if (pattern === undefined) {
            return hasUnicodeWord(string) ? unicodeWords(string) : asciiWords(string);
          }
          return string.match(pattern) || [];
        }
    
        /*------------------------------------------------------------------------*/
    
        /**
         * Attempts to invoke `func`, returning either the result or the caught error
         * object. Any additional arguments are provided to `func` when it's invoked.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Util
         * @param {Function} func The function to attempt.
         * @param {...*} [args] The arguments to invoke `func` with.
         * @returns {*} Returns the `func` result or error object.
         * @example
         *
         * // Avoid throwing errors for invalid selectors.
         * var elements = _.attempt(function(selector) {
         *   return document.querySelectorAll(selector);
         * }, '>_>');
         *
         * if (_.isError(elements)) {
         *   elements = [];
         * }
         */
        var attempt = baseRest(function(func, args) {
          try {
            return apply(func, undefined, args);
          } catch (e) {
            return isError(e) ? e : new Error(e);
          }
        });
    
        /**
         * Binds methods of an object to the object itself, overwriting the existing
         * method.
         *
         * **Note:** This method doesn't set the "length" property of bound functions.
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category Util
         * @param {Object} object The object to bind and assign the bound methods to.
         * @param {...(string|string[])} methodNames The object method names to bind.
         * @returns {Object} Returns `object`.
         * @example
         *
         * var view = {
         *   'label': 'docs',
         *   'click': function() {
         *     console.log('clicked ' + this.label);
         *   }
         * };
         *
         * _.bindAll(view, ['click']);
         * jQuery(element).on('click', view.click);
         * // => Logs 'clicked docs' when clicked.
         */
        var bindAll = flatRest(function(object, methodNames) {
          arrayEach(methodNames, function(key) {
            key = toKey(key);
            baseAssignValue(object, key, bind(object[key], object));
          });
          return object;
        });
    
        /**
         * Creates a function that iterates over `pairs` and invokes the corresponding
         * function of the first predicate to return truthy. The predicate-function
         * pairs are invoked with the `this` binding and arguments of the created
         * function.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Util
         * @param {Array} pairs The predicate-function pairs.
         * @returns {Function} Returns the new composite function.
         * @example
         *
         * var func = _.cond([
         *   [_.matches({ 'a': 1 }),           _.constant('matches A')],
         *   [_.conforms({ 'b': _.isNumber }), _.constant('matches B')],
         *   [_.stubTrue,                      _.constant('no match')]
         * ]);
         *
         * func({ 'a': 1, 'b': 2 });
         * // => 'matches A'
         *
         * func({ 'a': 0, 'b': 1 });
         * // => 'matches B'
         *
         * func({ 'a': '1', 'b': '2' });
         * // => 'no match'
         */
        function cond(pairs) {
          var length = pairs == null ? 0 : pairs.length,
              toIteratee = getIteratee();
    
          pairs = !length ? [] : arrayMap(pairs, function(pair) {
            if (typeof pair[1] != 'function') {
              throw new TypeError(FUNC_ERROR_TEXT);
            }
            return [toIteratee(pair[0]), pair[1]];
          });
    
          return baseRest(function(args) {
            var index = -1;
            while (++index < length) {
              var pair = pairs[index];
              if (apply(pair[0], this, args)) {
                return apply(pair[1], this, args);
              }
            }
          });
        }
    
        /**
         * Creates a function that invokes the predicate properties of `source` with
         * the corresponding property values of a given object, returning `true` if
         * all predicates return truthy, else `false`.
         *
         * **Note:** The created function is equivalent to `_.conformsTo` with
         * `source` partially applied.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Util
         * @param {Object} source The object of property predicates to conform to.
         * @returns {Function} Returns the new spec function.
         * @example
         *
         * var objects = [
         *   { 'a': 2, 'b': 1 },
         *   { 'a': 1, 'b': 2 }
         * ];
         *
         * _.filter(objects, _.conforms({ 'b': function(n) { return n > 1; } }));
         * // => [{ 'a': 1, 'b': 2 }]
         */
        function conforms(source) {
          return baseConforms(baseClone(source, CLONE_DEEP_FLAG));
        }
    
        /**
         * Creates a function that returns `value`.
         *
         * @static
         * @memberOf _
         * @since 2.4.0
         * @category Util
         * @param {*} value The value to return from the new function.
         * @returns {Function} Returns the new constant function.
         * @example
         *
         * var objects = _.times(2, _.constant({ 'a': 1 }));
         *
         * console.log(objects);
         * // => [{ 'a': 1 }, { 'a': 1 }]
         *
         * console.log(objects[0] === objects[1]);
         * // => true
         */
        function constant(value) {
          return function() {
            return value;
          };
        }
    
        /**
         * Checks `value` to determine whether a default value should be returned in
         * its place. The `defaultValue` is returned if `value` is `NaN`, `null`,
         * or `undefined`.
         *
         * @static
         * @memberOf _
         * @since 4.14.0
         * @category Util
         * @param {*} value The value to check.
         * @param {*} defaultValue The default value.
         * @returns {*} Returns the resolved value.
         * @example
         *
         * _.defaultTo(1, 10);
         * // => 1
         *
         * _.defaultTo(undefined, 10);
         * // => 10
         */
        function defaultTo(value, defaultValue) {
          return (value == null || value !== value) ? defaultValue : value;
        }
    
        /**
         * Creates a function that returns the result of invoking the given functions
         * with the `this` binding of the created function, where each successive
         * invocation is supplied the return value of the previous.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Util
         * @param {...(Function|Function[])} [funcs] The functions to invoke.
         * @returns {Function} Returns the new composite function.
         * @see _.flowRight
         * @example
         *
         * function square(n) {
         *   return n * n;
         * }
         *
         * var addSquare = _.flow([_.add, square]);
         * addSquare(1, 2);
         * // => 9
         */
        var flow = createFlow();
    
        /**
         * This method is like `_.flow` except that it creates a function that
         * invokes the given functions from right to left.
         *
         * @static
         * @since 3.0.0
         * @memberOf _
         * @category Util
         * @param {...(Function|Function[])} [funcs] The functions to invoke.
         * @returns {Function} Returns the new composite function.
         * @see _.flow
         * @example
         *
         * function square(n) {
         *   return n * n;
         * }
         *
         * var addSquare = _.flowRight([square, _.add]);
         * addSquare(1, 2);
         * // => 9
         */
        var flowRight = createFlow(true);
    
        /**
         * This method returns the first argument it receives.
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category Util
         * @param {*} value Any value.
         * @returns {*} Returns `value`.
         * @example
         *
         * var object = { 'a': 1 };
         *
         * console.log(_.identity(object) === object);
         * // => true
         */
        function identity(value) {
          return value;
        }
    
        /**
         * Creates a function that invokes `func` with the arguments of the created
         * function. If `func` is a property name, the created function returns the
         * property value for a given element. If `func` is an array or object, the
         * created function returns `true` for elements that contain the equivalent
         * source properties, otherwise it returns `false`.
         *
         * @static
         * @since 4.0.0
         * @memberOf _
         * @category Util
         * @param {*} [func=_.identity] The value to convert to a callback.
         * @returns {Function} Returns the callback.
         * @example
         *
         * var users = [
         *   { 'user': 'barney', 'age': 36, 'active': true },
         *   { 'user': 'fred',   'age': 40, 'active': false }
         * ];
         *
         * // The `_.matches` iteratee shorthand.
         * _.filter(users, _.iteratee({ 'user': 'barney', 'active': true }));
         * // => [{ 'user': 'barney', 'age': 36, 'active': true }]
         *
         * // The `_.matchesProperty` iteratee shorthand.
         * _.filter(users, _.iteratee(['user', 'fred']));
         * // => [{ 'user': 'fred', 'age': 40 }]
         *
         * // The `_.property` iteratee shorthand.
         * _.map(users, _.iteratee('user'));
         * // => ['barney', 'fred']
         *
         * // Create custom iteratee shorthands.
         * _.iteratee = _.wrap(_.iteratee, function(iteratee, func) {
         *   return !_.isRegExp(func) ? iteratee(func) : function(string) {
         *     return func.test(string);
         *   };
         * });
         *
         * _.filter(['abc', 'def'], /ef/);
         * // => ['def']
         */
        function iteratee(func) {
          return baseIteratee(typeof func == 'function' ? func : baseClone(func, CLONE_DEEP_FLAG));
        }
    
        /**
         * Creates a function that performs a partial deep comparison between a given
         * object and `source`, returning `true` if the given object has equivalent
         * property values, else `false`.
         *
         * **Note:** The created function is equivalent to `_.isMatch` with `source`
         * partially applied.
         *
         * Partial comparisons will match empty array and empty object `source`
         * values against any array or object value, respectively. See `_.isEqual`
         * for a list of supported value comparisons.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Util
         * @param {Object} source The object of property values to match.
         * @returns {Function} Returns the new spec function.
         * @example
         *
         * var objects = [
         *   { 'a': 1, 'b': 2, 'c': 3 },
         *   { 'a': 4, 'b': 5, 'c': 6 }
         * ];
         *
         * _.filter(objects, _.matches({ 'a': 4, 'c': 6 }));
         * // => [{ 'a': 4, 'b': 5, 'c': 6 }]
         */
        function matches(source) {
          return baseMatches(baseClone(source, CLONE_DEEP_FLAG));
        }
    
        /**
         * Creates a function that performs a partial deep comparison between the
         * value at `path` of a given object to `srcValue`, returning `true` if the
         * object value is equivalent, else `false`.
         *
         * **Note:** Partial comparisons will match empty array and empty object
         * `srcValue` values against any array or object value, respectively. See
         * `_.isEqual` for a list of supported value comparisons.
         *
         * @static
         * @memberOf _
         * @since 3.2.0
         * @category Util
         * @param {Array|string} path The path of the property to get.
         * @param {*} srcValue The value to match.
         * @returns {Function} Returns the new spec function.
         * @example
         *
         * var objects = [
         *   { 'a': 1, 'b': 2, 'c': 3 },
         *   { 'a': 4, 'b': 5, 'c': 6 }
         * ];
         *
         * _.find(objects, _.matchesProperty('a', 4));
         * // => { 'a': 4, 'b': 5, 'c': 6 }
         */
        function matchesProperty(path, srcValue) {
          return baseMatchesProperty(path, baseClone(srcValue, CLONE_DEEP_FLAG));
        }
    
        /**
         * Creates a function that invokes the method at `path` of a given object.
         * Any additional arguments are provided to the invoked method.
         *
         * @static
         * @memberOf _
         * @since 3.7.0
         * @category Util
         * @param {Array|string} path The path of the method to invoke.
         * @param {...*} [args] The arguments to invoke the method with.
         * @returns {Function} Returns the new invoker function.
         * @example
         *
         * var objects = [
         *   { 'a': { 'b': _.constant(2) } },
         *   { 'a': { 'b': _.constant(1) } }
         * ];
         *
         * _.map(objects, _.method('a.b'));
         * // => [2, 1]
         *
         * _.map(objects, _.method(['a', 'b']));
         * // => [2, 1]
         */
        var method = baseRest(function(path, args) {
          return function(object) {
            return baseInvoke(object, path, args);
          };
        });
    
        /**
         * The opposite of `_.method`; this method creates a function that invokes
         * the method at a given path of `object`. Any additional arguments are
         * provided to the invoked method.
         *
         * @static
         * @memberOf _
         * @since 3.7.0
         * @category Util
         * @param {Object} object The object to query.
         * @param {...*} [args] The arguments to invoke the method with.
         * @returns {Function} Returns the new invoker function.
         * @example
         *
         * var array = _.times(3, _.constant),
         *     object = { 'a': array, 'b': array, 'c': array };
         *
         * _.map(['a[2]', 'c[0]'], _.methodOf(object));
         * // => [2, 0]
         *
         * _.map([['a', '2'], ['c', '0']], _.methodOf(object));
         * // => [2, 0]
         */
        var methodOf = baseRest(function(object, args) {
          return function(path) {
            return baseInvoke(object, path, args);
          };
        });
    
        /**
         * Adds all own enumerable string keyed function properties of a source
         * object to the destination object. If `object` is a function, then methods
         * are added to its prototype as well.
         *
         * **Note:** Use `_.runInContext` to create a pristine `lodash` function to
         * avoid conflicts caused by modifying the original.
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category Util
         * @param {Function|Object} [object=lodash] The destination object.
         * @param {Object} source The object of functions to add.
         * @param {Object} [options={}] The options object.
         * @param {boolean} [options.chain=true] Specify whether mixins are chainable.
         * @returns {Function|Object} Returns `object`.
         * @example
         *
         * function vowels(string) {
         *   return _.filter(string, function(v) {
         *     return /[aeiou]/i.test(v);
         *   });
         * }
         *
         * _.mixin({ 'vowels': vowels });
         * _.vowels('fred');
         * // => ['e']
         *
         * _('fred').vowels().value();
         * // => ['e']
         *
         * _.mixin({ 'vowels': vowels }, { 'chain': false });
         * _('fred').vowels();
         * // => ['e']
         */
        function mixin(object, source, options) {
          var props = keys(source),
              methodNames = baseFunctions(source, props);
    
          if (options == null &&
              !(isObject(source) && (methodNames.length || !props.length))) {
            options = source;
            source = object;
            object = this;
            methodNames = baseFunctions(source, keys(source));
          }
          var chain = !(isObject(options) && 'chain' in options) || !!options.chain,
              isFunc = isFunction(object);
    
          arrayEach(methodNames, function(methodName) {
            var func = source[methodName];
            object[methodName] = func;
            if (isFunc) {
              object.prototype[methodName] = function() {
                var chainAll = this.__chain__;
                if (chain || chainAll) {
                  var result = object(this.__wrapped__),
                      actions = result.__actions__ = copyArray(this.__actions__);
    
                  actions.push({ 'func': func, 'args': arguments, 'thisArg': object });
                  result.__chain__ = chainAll;
                  return result;
                }
                return func.apply(object, arrayPush([this.value()], arguments));
              };
            }
          });
    
          return object;
        }
    
        /**
         * Reverts the `_` variable to its previous value and returns a reference to
         * the `lodash` function.
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category Util
         * @returns {Function} Returns the `lodash` function.
         * @example
         *
         * var lodash = _.noConflict();
         */
        function noConflict() {
          if (root._ === this) {
            root._ = oldDash;
          }
          return this;
        }
    
        /**
         * This method returns `undefined`.
         *
         * @static
         * @memberOf _
         * @since 2.3.0
         * @category Util
         * @example
         *
         * _.times(2, _.noop);
         * // => [undefined, undefined]
         */
        function noop() {
          // No operation performed.
        }
    
        /**
         * Creates a function that gets the argument at index `n`. If `n` is negative,
         * the nth argument from the end is returned.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Util
         * @param {number} [n=0] The index of the argument to return.
         * @returns {Function} Returns the new pass-thru function.
         * @example
         *
         * var func = _.nthArg(1);
         * func('a', 'b', 'c', 'd');
         * // => 'b'
         *
         * var func = _.nthArg(-2);
         * func('a', 'b', 'c', 'd');
         * // => 'c'
         */
        function nthArg(n) {
          n = toInteger(n);
          return baseRest(function(args) {
            return baseNth(args, n);
          });
        }
    
        /**
         * Creates a function that invokes `iteratees` with the arguments it receives
         * and returns their results.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Util
         * @param {...(Function|Function[])} [iteratees=[_.identity]]
         *  The iteratees to invoke.
         * @returns {Function} Returns the new function.
         * @example
         *
         * var func = _.over([Math.max, Math.min]);
         *
         * func(1, 2, 3, 4);
         * // => [4, 1]
         */
        var over = createOver(arrayMap);
    
        /**
         * Creates a function that checks if **all** of the `predicates` return
         * truthy when invoked with the arguments it receives.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Util
         * @param {...(Function|Function[])} [predicates=[_.identity]]
         *  The predicates to check.
         * @returns {Function} Returns the new function.
         * @example
         *
         * var func = _.overEvery([Boolean, isFinite]);
         *
         * func('1');
         * // => true
         *
         * func(null);
         * // => false
         *
         * func(NaN);
         * // => false
         */
        var overEvery = createOver(arrayEvery);
    
        /**
         * Creates a function that checks if **any** of the `predicates` return
         * truthy when invoked with the arguments it receives.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Util
         * @param {...(Function|Function[])} [predicates=[_.identity]]
         *  The predicates to check.
         * @returns {Function} Returns the new function.
         * @example
         *
         * var func = _.overSome([Boolean, isFinite]);
         *
         * func('1');
         * // => true
         *
         * func(null);
         * // => true
         *
         * func(NaN);
         * // => false
         */
        var overSome = createOver(arraySome);
    
        /**
         * Creates a function that returns the value at `path` of a given object.
         *
         * @static
         * @memberOf _
         * @since 2.4.0
         * @category Util
         * @param {Array|string} path The path of the property to get.
         * @returns {Function} Returns the new accessor function.
         * @example
         *
         * var objects = [
         *   { 'a': { 'b': 2 } },
         *   { 'a': { 'b': 1 } }
         * ];
         *
         * _.map(objects, _.property('a.b'));
         * // => [2, 1]
         *
         * _.map(_.sortBy(objects, _.property(['a', 'b'])), 'a.b');
         * // => [1, 2]
         */
        function property(path) {
          return isKey(path) ? baseProperty(toKey(path)) : basePropertyDeep(path);
        }
    
        /**
         * The opposite of `_.property`; this method creates a function that returns
         * the value at a given path of `object`.
         *
         * @static
         * @memberOf _
         * @since 3.0.0
         * @category Util
         * @param {Object} object The object to query.
         * @returns {Function} Returns the new accessor function.
         * @example
         *
         * var array = [0, 1, 2],
         *     object = { 'a': array, 'b': array, 'c': array };
         *
         * _.map(['a[2]', 'c[0]'], _.propertyOf(object));
         * // => [2, 0]
         *
         * _.map([['a', '2'], ['c', '0']], _.propertyOf(object));
         * // => [2, 0]
         */
        function propertyOf(object) {
          return function(path) {
            return object == null ? undefined : baseGet(object, path);
          };
        }
    
        /**
         * Creates an array of numbers (positive and/or negative) progressing from
         * `start` up to, but not including, `end`. A step of `-1` is used if a negative
         * `start` is specified without an `end` or `step`. If `end` is not specified,
         * it's set to `start` with `start` then set to `0`.
         *
         * **Note:** JavaScript follows the IEEE-754 standard for resolving
         * floating-point values which can produce unexpected results.
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category Util
         * @param {number} [start=0] The start of the range.
         * @param {number} end The end of the range.
         * @param {number} [step=1] The value to increment or decrement by.
         * @returns {Array} Returns the range of numbers.
         * @see _.inRange, _.rangeRight
         * @example
         *
         * _.range(4);
         * // => [0, 1, 2, 3]
         *
         * _.range(-4);
         * // => [0, -1, -2, -3]
         *
         * _.range(1, 5);
         * // => [1, 2, 3, 4]
         *
         * _.range(0, 20, 5);
         * // => [0, 5, 10, 15]
         *
         * _.range(0, -4, -1);
         * // => [0, -1, -2, -3]
         *
         * _.range(1, 4, 0);
         * // => [1, 1, 1]
         *
         * _.range(0);
         * // => []
         */
        var range = createRange();
    
        /**
         * This method is like `_.range` except that it populates values in
         * descending order.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Util
         * @param {number} [start=0] The start of the range.
         * @param {number} end The end of the range.
         * @param {number} [step=1] The value to increment or decrement by.
         * @returns {Array} Returns the range of numbers.
         * @see _.inRange, _.range
         * @example
         *
         * _.rangeRight(4);
         * // => [3, 2, 1, 0]
         *
         * _.rangeRight(-4);
         * // => [-3, -2, -1, 0]
         *
         * _.rangeRight(1, 5);
         * // => [4, 3, 2, 1]
         *
         * _.rangeRight(0, 20, 5);
         * // => [15, 10, 5, 0]
         *
         * _.rangeRight(0, -4, -1);
         * // => [-3, -2, -1, 0]
         *
         * _.rangeRight(1, 4, 0);
         * // => [1, 1, 1]
         *
         * _.rangeRight(0);
         * // => []
         */
        var rangeRight = createRange(true);
    
        /**
         * This method returns a new empty array.
         *
         * @static
         * @memberOf _
         * @since 4.13.0
         * @category Util
         * @returns {Array} Returns the new empty array.
         * @example
         *
         * var arrays = _.times(2, _.stubArray);
         *
         * console.log(arrays);
         * // => [[], []]
         *
         * console.log(arrays[0] === arrays[1]);
         * // => false
         */
        function stubArray() {
          return [];
        }
    
        /**
         * This method returns `false`.
         *
         * @static
         * @memberOf _
         * @since 4.13.0
         * @category Util
         * @returns {boolean} Returns `false`.
         * @example
         *
         * _.times(2, _.stubFalse);
         * // => [false, false]
         */
        function stubFalse() {
          return false;
        }
    
        /**
         * This method returns a new empty object.
         *
         * @static
         * @memberOf _
         * @since 4.13.0
         * @category Util
         * @returns {Object} Returns the new empty object.
         * @example
         *
         * var objects = _.times(2, _.stubObject);
         *
         * console.log(objects);
         * // => [{}, {}]
         *
         * console.log(objects[0] === objects[1]);
         * // => false
         */
        function stubObject() {
          return {};
        }
    
        /**
         * This method returns an empty string.
         *
         * @static
         * @memberOf _
         * @since 4.13.0
         * @category Util
         * @returns {string} Returns the empty string.
         * @example
         *
         * _.times(2, _.stubString);
         * // => ['', '']
         */
        function stubString() {
          return '';
        }
    
        /**
         * This method returns `true`.
         *
         * @static
         * @memberOf _
         * @since 4.13.0
         * @category Util
         * @returns {boolean} Returns `true`.
         * @example
         *
         * _.times(2, _.stubTrue);
         * // => [true, true]
         */
        function stubTrue() {
          return true;
        }
    
        /**
         * Invokes the iteratee `n` times, returning an array of the results of
         * each invocation. The iteratee is invoked with one argument; (index).
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category Util
         * @param {number} n The number of times to invoke `iteratee`.
         * @param {Function} [iteratee=_.identity] The function invoked per iteration.
         * @returns {Array} Returns the array of results.
         * @example
         *
         * _.times(3, String);
         * // => ['0', '1', '2']
         *
         *  _.times(4, _.constant(0));
         * // => [0, 0, 0, 0]
         */
        function times(n, iteratee) {
          n = toInteger(n);
          if (n < 1 || n > MAX_SAFE_INTEGER) {
            return [];
          }
          var index = MAX_ARRAY_LENGTH,
              length = nativeMin(n, MAX_ARRAY_LENGTH);
    
          iteratee = getIteratee(iteratee);
          n -= MAX_ARRAY_LENGTH;
    
          var result = baseTimes(length, iteratee);
          while (++index < n) {
            iteratee(index);
          }
          return result;
        }
    
        /**
         * Converts `value` to a property path array.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Util
         * @param {*} value The value to convert.
         * @returns {Array} Returns the new property path array.
         * @example
         *
         * _.toPath('a.b.c');
         * // => ['a', 'b', 'c']
         *
         * _.toPath('a[0].b.c');
         * // => ['a', '0', 'b', 'c']
         */
        function toPath(value) {
          if (isArray(value)) {
            return arrayMap(value, toKey);
          }
          return isSymbol(value) ? [value] : copyArray(stringToPath(toString(value)));
        }
    
        /**
         * Generates a unique ID. If `prefix` is given, the ID is appended to it.
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category Util
         * @param {string} [prefix=''] The value to prefix the ID with.
         * @returns {string} Returns the unique ID.
         * @example
         *
         * _.uniqueId('contact_');
         * // => 'contact_104'
         *
         * _.uniqueId();
         * // => '105'
         */
        function uniqueId(prefix) {
          var id = ++idCounter;
          return toString(prefix) + id;
        }
    
        /*------------------------------------------------------------------------*/
    
        /**
         * Adds two numbers.
         *
         * @static
         * @memberOf _
         * @since 3.4.0
         * @category Math
         * @param {number} augend The first number in an addition.
         * @param {number} addend The second number in an addition.
         * @returns {number} Returns the total.
         * @example
         *
         * _.add(6, 4);
         * // => 10
         */
        var add = createMathOperation(function(augend, addend) {
          return augend + addend;
        }, 0);
    
        /**
         * Computes `number` rounded up to `precision`.
         *
         * @static
         * @memberOf _
         * @since 3.10.0
         * @category Math
         * @param {number} number The number to round up.
         * @param {number} [precision=0] The precision to round up to.
         * @returns {number} Returns the rounded up number.
         * @example
         *
         * _.ceil(4.006);
         * // => 5
         *
         * _.ceil(6.004, 2);
         * // => 6.01
         *
         * _.ceil(6040, -2);
         * // => 6100
         */
        var ceil = createRound('ceil');
    
        /**
         * Divide two numbers.
         *
         * @static
         * @memberOf _
         * @since 4.7.0
         * @category Math
         * @param {number} dividend The first number in a division.
         * @param {number} divisor The second number in a division.
         * @returns {number} Returns the quotient.
         * @example
         *
         * _.divide(6, 4);
         * // => 1.5
         */
        var divide = createMathOperation(function(dividend, divisor) {
          return dividend / divisor;
        }, 1);
    
        /**
         * Computes `number` rounded down to `precision`.
         *
         * @static
         * @memberOf _
         * @since 3.10.0
         * @category Math
         * @param {number} number The number to round down.
         * @param {number} [precision=0] The precision to round down to.
         * @returns {number} Returns the rounded down number.
         * @example
         *
         * _.floor(4.006);
         * // => 4
         *
         * _.floor(0.046, 2);
         * // => 0.04
         *
         * _.floor(4060, -2);
         * // => 4000
         */
        var floor = createRound('floor');
    
        /**
         * Computes the maximum value of `array`. If `array` is empty or falsey,
         * `undefined` is returned.
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category Math
         * @param {Array} array The array to iterate over.
         * @returns {*} Returns the maximum value.
         * @example
         *
         * _.max([4, 2, 8, 6]);
         * // => 8
         *
         * _.max([]);
         * // => undefined
         */
        function max(array) {
          return (array && array.length)
            ? baseExtremum(array, identity, baseGt)
            : undefined;
        }
    
        /**
         * This method is like `_.max` except that it accepts `iteratee` which is
         * invoked for each element in `array` to generate the criterion by which
         * the value is ranked. The iteratee is invoked with one argument: (value).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Math
         * @param {Array} array The array to iterate over.
         * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
         * @returns {*} Returns the maximum value.
         * @example
         *
         * var objects = [{ 'n': 1 }, { 'n': 2 }];
         *
         * _.maxBy(objects, function(o) { return o.n; });
         * // => { 'n': 2 }
         *
         * // The `_.property` iteratee shorthand.
         * _.maxBy(objects, 'n');
         * // => { 'n': 2 }
         */
        function maxBy(array, iteratee) {
          return (array && array.length)
            ? baseExtremum(array, getIteratee(iteratee, 2), baseGt)
            : undefined;
        }
    
        /**
         * Computes the mean of the values in `array`.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Math
         * @param {Array} array The array to iterate over.
         * @returns {number} Returns the mean.
         * @example
         *
         * _.mean([4, 2, 8, 6]);
         * // => 5
         */
        function mean(array) {
          return baseMean(array, identity);
        }
    
        /**
         * This method is like `_.mean` except that it accepts `iteratee` which is
         * invoked for each element in `array` to generate the value to be averaged.
         * The iteratee is invoked with one argument: (value).
         *
         * @static
         * @memberOf _
         * @since 4.7.0
         * @category Math
         * @param {Array} array The array to iterate over.
         * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
         * @returns {number} Returns the mean.
         * @example
         *
         * var objects = [{ 'n': 4 }, { 'n': 2 }, { 'n': 8 }, { 'n': 6 }];
         *
         * _.meanBy(objects, function(o) { return o.n; });
         * // => 5
         *
         * // The `_.property` iteratee shorthand.
         * _.meanBy(objects, 'n');
         * // => 5
         */
        function meanBy(array, iteratee) {
          return baseMean(array, getIteratee(iteratee, 2));
        }
    
        /**
         * Computes the minimum value of `array`. If `array` is empty or falsey,
         * `undefined` is returned.
         *
         * @static
         * @since 0.1.0
         * @memberOf _
         * @category Math
         * @param {Array} array The array to iterate over.
         * @returns {*} Returns the minimum value.
         * @example
         *
         * _.min([4, 2, 8, 6]);
         * // => 2
         *
         * _.min([]);
         * // => undefined
         */
        function min(array) {
          return (array && array.length)
            ? baseExtremum(array, identity, baseLt)
            : undefined;
        }
    
        /**
         * This method is like `_.min` except that it accepts `iteratee` which is
         * invoked for each element in `array` to generate the criterion by which
         * the value is ranked. The iteratee is invoked with one argument: (value).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Math
         * @param {Array} array The array to iterate over.
         * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
         * @returns {*} Returns the minimum value.
         * @example
         *
         * var objects = [{ 'n': 1 }, { 'n': 2 }];
         *
         * _.minBy(objects, function(o) { return o.n; });
         * // => { 'n': 1 }
         *
         * // The `_.property` iteratee shorthand.
         * _.minBy(objects, 'n');
         * // => { 'n': 1 }
         */
        function minBy(array, iteratee) {
          return (array && array.length)
            ? baseExtremum(array, getIteratee(iteratee, 2), baseLt)
            : undefined;
        }
    
        /**
         * Multiply two numbers.
         *
         * @static
         * @memberOf _
         * @since 4.7.0
         * @category Math
         * @param {number} multiplier The first number in a multiplication.
         * @param {number} multiplicand The second number in a multiplication.
         * @returns {number} Returns the product.
         * @example
         *
         * _.multiply(6, 4);
         * // => 24
         */
        var multiply = createMathOperation(function(multiplier, multiplicand) {
          return multiplier * multiplicand;
        }, 1);
    
        /**
         * Computes `number` rounded to `precision`.
         *
         * @static
         * @memberOf _
         * @since 3.10.0
         * @category Math
         * @param {number} number The number to round.
         * @param {number} [precision=0] The precision to round to.
         * @returns {number} Returns the rounded number.
         * @example
         *
         * _.round(4.006);
         * // => 4
         *
         * _.round(4.006, 2);
         * // => 4.01
         *
         * _.round(4060, -2);
         * // => 4100
         */
        var round = createRound('round');
    
        /**
         * Subtract two numbers.
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Math
         * @param {number} minuend The first number in a subtraction.
         * @param {number} subtrahend The second number in a subtraction.
         * @returns {number} Returns the difference.
         * @example
         *
         * _.subtract(6, 4);
         * // => 2
         */
        var subtract = createMathOperation(function(minuend, subtrahend) {
          return minuend - subtrahend;
        }, 0);
    
        /**
         * Computes the sum of the values in `array`.
         *
         * @static
         * @memberOf _
         * @since 3.4.0
         * @category Math
         * @param {Array} array The array to iterate over.
         * @returns {number} Returns the sum.
         * @example
         *
         * _.sum([4, 2, 8, 6]);
         * // => 20
         */
        function sum(array) {
          return (array && array.length)
            ? baseSum(array, identity)
            : 0;
        }
    
        /**
         * This method is like `_.sum` except that it accepts `iteratee` which is
         * invoked for each element in `array` to generate the value to be summed.
         * The iteratee is invoked with one argument: (value).
         *
         * @static
         * @memberOf _
         * @since 4.0.0
         * @category Math
         * @param {Array} array The array to iterate over.
         * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
         * @returns {number} Returns the sum.
         * @example
         *
         * var objects = [{ 'n': 4 }, { 'n': 2 }, { 'n': 8 }, { 'n': 6 }];
         *
         * _.sumBy(objects, function(o) { return o.n; });
         * // => 20
         *
         * // The `_.property` iteratee shorthand.
         * _.sumBy(objects, 'n');
         * // => 20
         */
        function sumBy(array, iteratee) {
          return (array && array.length)
            ? baseSum(array, getIteratee(iteratee, 2))
            : 0;
        }
    
        /*------------------------------------------------------------------------*/
    
        // Add methods that return wrapped values in chain sequences.
        lodash.after = after;
        lodash.ary = ary;
        lodash.assign = assign;
        lodash.assignIn = assignIn;
        lodash.assignInWith = assignInWith;
        lodash.assignWith = assignWith;
        lodash.at = at;
        lodash.before = before;
        lodash.bind = bind;
        lodash.bindAll = bindAll;
        lodash.bindKey = bindKey;
        lodash.castArray = castArray;
        lodash.chain = chain;
        lodash.chunk = chunk;
        lodash.compact = compact;
        lodash.concat = concat;
        lodash.cond = cond;
        lodash.conforms = conforms;
        lodash.constant = constant;
        lodash.countBy = countBy;
        lodash.create = create;
        lodash.curry = curry;
        lodash.curryRight = curryRight;
        lodash.debounce = debounce;
        lodash.defaults = defaults;
        lodash.defaultsDeep = defaultsDeep;
        lodash.defer = defer;
        lodash.delay = delay;
        lodash.difference = difference;
        lodash.differenceBy = differenceBy;
        lodash.differenceWith = differenceWith;
        lodash.drop = drop;
        lodash.dropRight = dropRight;
        lodash.dropRightWhile = dropRightWhile;
        lodash.dropWhile = dropWhile;
        lodash.fill = fill;
        lodash.filter = filter;
        lodash.flatMap = flatMap;
        lodash.flatMapDeep = flatMapDeep;
        lodash.flatMapDepth = flatMapDepth;
        lodash.flatten = flatten;
        lodash.flattenDeep = flattenDeep;
        lodash.flattenDepth = flattenDepth;
        lodash.flip = flip;
        lodash.flow = flow;
        lodash.flowRight = flowRight;
        lodash.fromPairs = fromPairs;
        lodash.functions = functions;
        lodash.functionsIn = functionsIn;
        lodash.groupBy = groupBy;
        lodash.initial = initial;
        lodash.intersection = intersection;
        lodash.intersectionBy = intersectionBy;
        lodash.intersectionWith = intersectionWith;
        lodash.invert = invert;
        lodash.invertBy = invertBy;
        lodash.invokeMap = invokeMap;
        lodash.iteratee = iteratee;
        lodash.keyBy = keyBy;
        lodash.keys = keys;
        lodash.keysIn = keysIn;
        lodash.map = map;
        lodash.mapKeys = mapKeys;
        lodash.mapValues = mapValues;
        lodash.matches = matches;
        lodash.matchesProperty = matchesProperty;
        lodash.memoize = memoize;
        lodash.merge = merge;
        lodash.mergeWith = mergeWith;
        lodash.method = method;
        lodash.methodOf = methodOf;
        lodash.mixin = mixin;
        lodash.negate = negate;
        lodash.nthArg = nthArg;
        lodash.omit = omit;
        lodash.omitBy = omitBy;
        lodash.once = once;
        lodash.orderBy = orderBy;
        lodash.over = over;
        lodash.overArgs = overArgs;
        lodash.overEvery = overEvery;
        lodash.overSome = overSome;
        lodash.partial = partial;
        lodash.partialRight = partialRight;
        lodash.partition = partition;
        lodash.pick = pick;
        lodash.pickBy = pickBy;
        lodash.property = property;
        lodash.propertyOf = propertyOf;
        lodash.pull = pull;
        lodash.pullAll = pullAll;
        lodash.pullAllBy = pullAllBy;
        lodash.pullAllWith = pullAllWith;
        lodash.pullAt = pullAt;
        lodash.range = range;
        lodash.rangeRight = rangeRight;
        lodash.rearg = rearg;
        lodash.reject = reject;
        lodash.remove = remove;
        lodash.rest = rest;
        lodash.reverse = reverse;
        lodash.sampleSize = sampleSize;
        lodash.set = set;
        lodash.setWith = setWith;
        lodash.shuffle = shuffle;
        lodash.slice = slice;
        lodash.sortBy = sortBy;
        lodash.sortedUniq = sortedUniq;
        lodash.sortedUniqBy = sortedUniqBy;
        lodash.split = split;
        lodash.spread = spread;
        lodash.tail = tail;
        lodash.take = take;
        lodash.takeRight = takeRight;
        lodash.takeRightWhile = takeRightWhile;
        lodash.takeWhile = takeWhile;
        lodash.tap = tap;
        lodash.throttle = throttle;
        lodash.thru = thru;
        lodash.toArray = toArray;
        lodash.toPairs = toPairs;
        lodash.toPairsIn = toPairsIn;
        lodash.toPath = toPath;
        lodash.toPlainObject = toPlainObject;
        lodash.transform = transform;
        lodash.unary = unary;
        lodash.union = union;
        lodash.unionBy = unionBy;
        lodash.unionWith = unionWith;
        lodash.uniq = uniq;
        lodash.uniqBy = uniqBy;
        lodash.uniqWith = uniqWith;
        lodash.unset = unset;
        lodash.unzip = unzip;
        lodash.unzipWith = unzipWith;
        lodash.update = update;
        lodash.updateWith = updateWith;
        lodash.values = values;
        lodash.valuesIn = valuesIn;
        lodash.without = without;
        lodash.words = words;
        lodash.wrap = wrap;
        lodash.xor = xor;
        lodash.xorBy = xorBy;
        lodash.xorWith = xorWith;
        lodash.zip = zip;
        lodash.zipObject = zipObject;
        lodash.zipObjectDeep = zipObjectDeep;
        lodash.zipWith = zipWith;
    
        // Add aliases.
        lodash.entries = toPairs;
        lodash.entriesIn = toPairsIn;
        lodash.extend = assignIn;
        lodash.extendWith = assignInWith;
    
        // Add methods to `lodash.prototype`.
        mixin(lodash, lodash);
    
        /*------------------------------------------------------------------------*/
    
        // Add methods that return unwrapped values in chain sequences.
        lodash.add = add;
        lodash.attempt = attempt;
        lodash.camelCase = camelCase;
        lodash.capitalize = capitalize;
        lodash.ceil = ceil;
        lodash.clamp = clamp;
        lodash.clone = clone;
        lodash.cloneDeep = cloneDeep;
        lodash.cloneDeepWith = cloneDeepWith;
        lodash.cloneWith = cloneWith;
        lodash.conformsTo = conformsTo;
        lodash.deburr = deburr;
        lodash.defaultTo = defaultTo;
        lodash.divide = divide;
        lodash.endsWith = endsWith;
        lodash.eq = eq;
        lodash.escape = escape;
        lodash.escapeRegExp = escapeRegExp;
        lodash.every = every;
        lodash.find = find;
        lodash.findIndex = findIndex;
        lodash.findKey = findKey;
        lodash.findLast = findLast;
        lodash.findLastIndex = findLastIndex;
        lodash.findLastKey = findLastKey;
        lodash.floor = floor;
        lodash.forEach = forEach;
        lodash.forEachRight = forEachRight;
        lodash.forIn = forIn;
        lodash.forInRight = forInRight;
        lodash.forOwn = forOwn;
        lodash.forOwnRight = forOwnRight;
        lodash.get = get;
        lodash.gt = gt;
        lodash.gte = gte;
        lodash.has = has;
        lodash.hasIn = hasIn;
        lodash.head = head;
        lodash.identity = identity;
        lodash.includes = includes;
        lodash.indexOf = indexOf;
        lodash.inRange = inRange;
        lodash.invoke = invoke;
        lodash.isArguments = isArguments;
        lodash.isArray = isArray;
        lodash.isArrayBuffer = isArrayBuffer;
        lodash.isArrayLike = isArrayLike;
        lodash.isArrayLikeObject = isArrayLikeObject;
        lodash.isBoolean = isBoolean;
        lodash.isBuffer = isBuffer;
        lodash.isDate = isDate;
        lodash.isElement = isElement;
        lodash.isEmpty = isEmpty;
        lodash.isEqual = isEqual;
        lodash.isEqualWith = isEqualWith;
        lodash.isError = isError;
        lodash.isFinite = isFinite;
        lodash.isFunction = isFunction;
        lodash.isInteger = isInteger;
        lodash.isLength = isLength;
        lodash.isMap = isMap;
        lodash.isMatch = isMatch;
        lodash.isMatchWith = isMatchWith;
        lodash.isNaN = isNaN;
        lodash.isNative = isNative;
        lodash.isNil = isNil;
        lodash.isNull = isNull;
        lodash.isNumber = isNumber;
        lodash.isObject = isObject;
        lodash.isObjectLike = isObjectLike;
        lodash.isPlainObject = isPlainObject;
        lodash.isRegExp = isRegExp;
        lodash.isSafeInteger = isSafeInteger;
        lodash.isSet = isSet;
        lodash.isString = isString;
        lodash.isSymbol = isSymbol;
        lodash.isTypedArray = isTypedArray;
        lodash.isUndefined = isUndefined;
        lodash.isWeakMap = isWeakMap;
        lodash.isWeakSet = isWeakSet;
        lodash.join = join;
        lodash.kebabCase = kebabCase;
        lodash.last = last;
        lodash.lastIndexOf = lastIndexOf;
        lodash.lowerCase = lowerCase;
        lodash.lowerFirst = lowerFirst;
        lodash.lt = lt;
        lodash.lte = lte;
        lodash.max = max;
        lodash.maxBy = maxBy;
        lodash.mean = mean;
        lodash.meanBy = meanBy;
        lodash.min = min;
        lodash.minBy = minBy;
        lodash.stubArray = stubArray;
        lodash.stubFalse = stubFalse;
        lodash.stubObject = stubObject;
        lodash.stubString = stubString;
        lodash.stubTrue = stubTrue;
        lodash.multiply = multiply;
        lodash.nth = nth;
        lodash.noConflict = noConflict;
        lodash.noop = noop;
        lodash.now = now;
        lodash.pad = pad;
        lodash.padEnd = padEnd;
        lodash.padStart = padStart;
        lodash.parseInt = parseInt;
        lodash.random = random;
        lodash.reduce = reduce;
        lodash.reduceRight = reduceRight;
        lodash.repeat = repeat;
        lodash.replace = replace;
        lodash.result = result;
        lodash.round = round;
        lodash.runInContext = runInContext;
        lodash.sample = sample;
        lodash.size = size;
        lodash.snakeCase = snakeCase;
        lodash.some = some;
        lodash.sortedIndex = sortedIndex;
        lodash.sortedIndexBy = sortedIndexBy;
        lodash.sortedIndexOf = sortedIndexOf;
        lodash.sortedLastIndex = sortedLastIndex;
        lodash.sortedLastIndexBy = sortedLastIndexBy;
        lodash.sortedLastIndexOf = sortedLastIndexOf;
        lodash.startCase = startCase;
        lodash.startsWith = startsWith;
        lodash.subtract = subtract;
        lodash.sum = sum;
        lodash.sumBy = sumBy;
        lodash.template = template;
        lodash.times = times;
        lodash.toFinite = toFinite;
        lodash.toInteger = toInteger;
        lodash.toLength = toLength;
        lodash.toLower = toLower;
        lodash.toNumber = toNumber;
        lodash.toSafeInteger = toSafeInteger;
        lodash.toString = toString;
        lodash.toUpper = toUpper;
        lodash.trim = trim;
        lodash.trimEnd = trimEnd;
        lodash.trimStart = trimStart;
        lodash.truncate = truncate;
        lodash.unescape = unescape;
        lodash.uniqueId = uniqueId;
        lodash.upperCase = upperCase;
        lodash.upperFirst = upperFirst;
    
        // Add aliases.
        lodash.each = forEach;
        lodash.eachRight = forEachRight;
        lodash.first = head;
    
        mixin(lodash, (function() {
          var source = {};
          baseForOwn(lodash, function(func, methodName) {
            if (!hasOwnProperty.call(lodash.prototype, methodName)) {
              source[methodName] = func;
            }
          });
          return source;
        }()), { 'chain': false });
    
        /*------------------------------------------------------------------------*/
    
        /**
         * The semantic version number.
         *
         * @static
         * @memberOf _
         * @type {string}
         */
        lodash.VERSION = VERSION;
    
        // Assign default placeholders.
        arrayEach(['bind', 'bindKey', 'curry', 'curryRight', 'partial', 'partialRight'], function(methodName) {
          lodash[methodName].placeholder = lodash;
        });
    
        // Add `LazyWrapper` methods for `_.drop` and `_.take` variants.
        arrayEach(['drop', 'take'], function(methodName, index) {
          LazyWrapper.prototype[methodName] = function(n) {
            n = n === undefined ? 1 : nativeMax(toInteger(n), 0);
    
            var result = (this.__filtered__ && !index)
              ? new LazyWrapper(this)
              : this.clone();
    
            if (result.__filtered__) {
              result.__takeCount__ = nativeMin(n, result.__takeCount__);
            } else {
              result.__views__.push({
                'size': nativeMin(n, MAX_ARRAY_LENGTH),
                'type': methodName + (result.__dir__ < 0 ? 'Right' : '')
              });
            }
            return result;
          };
    
          LazyWrapper.prototype[methodName + 'Right'] = function(n) {
            return this.reverse()[methodName](n).reverse();
          };
        });
    
        // Add `LazyWrapper` methods that accept an `iteratee` value.
        arrayEach(['filter', 'map', 'takeWhile'], function(methodName, index) {
          var type = index + 1,
              isFilter = type == LAZY_FILTER_FLAG || type == LAZY_WHILE_FLAG;
    
          LazyWrapper.prototype[methodName] = function(iteratee) {
            var result = this.clone();
            result.__iteratees__.push({
              'iteratee': getIteratee(iteratee, 3),
              'type': type
            });
            result.__filtered__ = result.__filtered__ || isFilter;
            return result;
          };
        });
    
        // Add `LazyWrapper` methods for `_.head` and `_.last`.
        arrayEach(['head', 'last'], function(methodName, index) {
          var takeName = 'take' + (index ? 'Right' : '');
    
          LazyWrapper.prototype[methodName] = function() {
            return this[takeName](1).value()[0];
          };
        });
    
        // Add `LazyWrapper` methods for `_.initial` and `_.tail`.
        arrayEach(['initial', 'tail'], function(methodName, index) {
          var dropName = 'drop' + (index ? '' : 'Right');
    
          LazyWrapper.prototype[methodName] = function() {
            return this.__filtered__ ? new LazyWrapper(this) : this[dropName](1);
          };
        });
    
        LazyWrapper.prototype.compact = function() {
          return this.filter(identity);
        };
    
        LazyWrapper.prototype.find = function(predicate) {
          return this.filter(predicate).head();
        };
    
        LazyWrapper.prototype.findLast = function(predicate) {
          return this.reverse().find(predicate);
        };
    
        LazyWrapper.prototype.invokeMap = baseRest(function(path, args) {
          if (typeof path == 'function') {
            return new LazyWrapper(this);
          }
          return this.map(function(value) {
            return baseInvoke(value, path, args);
          });
        });
    
        LazyWrapper.prototype.reject = function(predicate) {
          return this.filter(negate(getIteratee(predicate)));
        };
    
        LazyWrapper.prototype.slice = function(start, end) {
          start = toInteger(start);
    
          var result = this;
          if (result.__filtered__ && (start > 0 || end < 0)) {
            return new LazyWrapper(result);
          }
          if (start < 0) {
            result = result.takeRight(-start);
          } else if (start) {
            result = result.drop(start);
          }
          if (end !== undefined) {
            end = toInteger(end);
            result = end < 0 ? result.dropRight(-end) : result.take(end - start);
          }
          return result;
        };
    
        LazyWrapper.prototype.takeRightWhile = function(predicate) {
          return this.reverse().takeWhile(predicate).reverse();
        };
    
        LazyWrapper.prototype.toArray = function() {
          return this.take(MAX_ARRAY_LENGTH);
        };
    
        // Add `LazyWrapper` methods to `lodash.prototype`.
        baseForOwn(LazyWrapper.prototype, function(func, methodName) {
          var checkIteratee = /^(?:filter|find|map|reject)|While$/.test(methodName),
              isTaker = /^(?:head|last)$/.test(methodName),
              lodashFunc = lodash[isTaker ? ('take' + (methodName == 'last' ? 'Right' : '')) : methodName],
              retUnwrapped = isTaker || /^find/.test(methodName);
    
          if (!lodashFunc) {
            return;
          }
          lodash.prototype[methodName] = function() {
            var value = this.__wrapped__,
                args = isTaker ? [1] : arguments,
                isLazy = value instanceof LazyWrapper,
                iteratee = args[0],
                useLazy = isLazy || isArray(value);
    
            var interceptor = function(value) {
              var result = lodashFunc.apply(lodash, arrayPush([value], args));
              return (isTaker && chainAll) ? result[0] : result;
            };
    
            if (useLazy && checkIteratee && typeof iteratee == 'function' && iteratee.length != 1) {
              // Avoid lazy use if the iteratee has a "length" value other than `1`.
              isLazy = useLazy = false;
            }
            var chainAll = this.__chain__,
                isHybrid = !!this.__actions__.length,
                isUnwrapped = retUnwrapped && !chainAll,
                onlyLazy = isLazy && !isHybrid;
    
            if (!retUnwrapped && useLazy) {
              value = onlyLazy ? value : new LazyWrapper(this);
              var result = func.apply(value, args);
              result.__actions__.push({ 'func': thru, 'args': [interceptor], 'thisArg': undefined });
              return new LodashWrapper(result, chainAll);
            }
            if (isUnwrapped && onlyLazy) {
              return func.apply(this, args);
            }
            result = this.thru(interceptor);
            return isUnwrapped ? (isTaker ? result.value()[0] : result.value()) : result;
          };
        });
    
        // Add `Array` methods to `lodash.prototype`.
        arrayEach(['pop', 'push', 'shift', 'sort', 'splice', 'unshift'], function(methodName) {
          var func = arrayProto[methodName],
              chainName = /^(?:push|sort|unshift)$/.test(methodName) ? 'tap' : 'thru',
              retUnwrapped = /^(?:pop|shift)$/.test(methodName);
    
          lodash.prototype[methodName] = function() {
            var args = arguments;
            if (retUnwrapped && !this.__chain__) {
              var value = this.value();
              return func.apply(isArray(value) ? value : [], args);
            }
            return this[chainName](function(value) {
              return func.apply(isArray(value) ? value : [], args);
            });
          };
        });
    
        // Map minified method names to their real names.
        baseForOwn(LazyWrapper.prototype, function(func, methodName) {
          var lodashFunc = lodash[methodName];
          if (lodashFunc) {
            var key = lodashFunc.name + '';
            if (!hasOwnProperty.call(realNames, key)) {
              realNames[key] = [];
            }
            realNames[key].push({ 'name': methodName, 'func': lodashFunc });
          }
        });
    
        realNames[createHybrid(undefined, WRAP_BIND_KEY_FLAG).name] = [{
          'name': 'wrapper',
          'func': undefined
        }];
    
        // Add methods to `LazyWrapper`.
        LazyWrapper.prototype.clone = lazyClone;
        LazyWrapper.prototype.reverse = lazyReverse;
        LazyWrapper.prototype.value = lazyValue;
    
        // Add chain sequence methods to the `lodash` wrapper.
        lodash.prototype.at = wrapperAt;
        lodash.prototype.chain = wrapperChain;
        lodash.prototype.commit = wrapperCommit;
        lodash.prototype.next = wrapperNext;
        lodash.prototype.plant = wrapperPlant;
        lodash.prototype.reverse = wrapperReverse;
        lodash.prototype.toJSON = lodash.prototype.valueOf = lodash.prototype.value = wrapperValue;
    
        // Add lazy aliases.
        lodash.prototype.first = lodash.prototype.head;
    
        if (symIterator) {
          lodash.prototype[symIterator] = wrapperToIterator;
        }
        return lodash;
      });
    
      /*--------------------------------------------------------------------------*/
    
      // Export lodash.
      var _ = runInContext();
    
      // Some AMD build optimizers, like r.js, check for condition patterns like:
      if (true) {
        // Expose Lodash on the global object to prevent errors when Lodash is
        // loaded by a script tag in the presence of an AMD loader.
        // See http://requirejs.org/docs/errors.html#mismatch for more details.
        // Use `_.noConflict` to remove Lodash from the global object.
        root._ = _;
    
        // Define as an anonymous module so, through path mapping, it can be
        // referenced as the "underscore" module.
        !(__WEBPACK_AMD_DEFINE_RESULT__ = (function() {
          return _;
        }).call(exports, __webpack_require__, exports, module),
                    __WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__));
      }
      // Check for `exports` after `define` in case a build optimizer adds it.
      else {}
    }.call(this));
    
    /* WEBPACK VAR INJECTION */}.call(this, __webpack_require__(/*! ./../webpack/buildin/global.js */ "./node_modules/webpack/buildin/global.js"), __webpack_require__(/*! ./../webpack/buildin/module.js */ "./node_modules/webpack/buildin/module.js")(module)))
    
    /***/ }),
    
    /***/ "./node_modules/object-assign/index.js":
    /*!*********************************************!*\
      !*** ./node_modules/object-assign/index.js ***!
      \*********************************************/
    /*! no static exports found */
    /***/ (function(module, exports, __webpack_require__) {
    
    "use strict";
    /*
    object-assign
    (c) Sindre Sorhus
    @license MIT
    */
    
    
    /* eslint-disable no-unused-vars */
    var getOwnPropertySymbols = Object.getOwnPropertySymbols;
    var hasOwnProperty = Object.prototype.hasOwnProperty;
    var propIsEnumerable = Object.prototype.propertyIsEnumerable;
    
    function toObject(val) {
        if (val === null || val === undefined) {
            throw new TypeError('Object.assign cannot be called with null or undefined');
        }
    
        return Object(val);
    }
    
    function shouldUseNative() {
        try {
            if (!Object.assign) {
                return false;
            }
    
            // Detect buggy property enumeration order in older V8 versions.
    
            // https://bugs.chromium.org/p/v8/issues/detail?id=4118
            var test1 = new String('abc');  // eslint-disable-line no-new-wrappers
            test1[5] = 'de';
            if (Object.getOwnPropertyNames(test1)[0] === '5') {
                return false;
            }
    
            // https://bugs.chromium.org/p/v8/issues/detail?id=3056
            var test2 = {};
            for (var i = 0; i < 10; i++) {
                test2['_' + String.fromCharCode(i)] = i;
            }
            var order2 = Object.getOwnPropertyNames(test2).map(function (n) {
                return test2[n];
            });
            if (order2.join('') !== '0123456789') {
                return false;
            }
    
            // https://bugs.chromium.org/p/v8/issues/detail?id=3056
            var test3 = {};
            'abcdefghijklmnopqrst'.split('').forEach(function (letter) {
                test3[letter] = letter;
            });
            if (Object.keys(Object.assign({}, test3)).join('') !==
                    'abcdefghijklmnopqrst') {
                return false;
            }
    
            return true;
        } catch (err) {
            // We don't expect any of the above to throw, but better to be safe.
            return false;
        }
    }
    
    module.exports = shouldUseNative() ? Object.assign : function (target, source) {
        var from;
        var to = toObject(target);
        var symbols;
    
        for (var s = 1; s < arguments.length; s++) {
            from = Object(arguments[s]);
    
            for (var key in from) {
                if (hasOwnProperty.call(from, key)) {
                    to[key] = from[key];
                }
            }
    
            if (getOwnPropertySymbols) {
                symbols = getOwnPropertySymbols(from);
                for (var i = 0; i < symbols.length; i++) {
                    if (propIsEnumerable.call(from, symbols[i])) {
                        to[symbols[i]] = from[symbols[i]];
                    }
                }
            }
        }
    
        return to;
    };
    
    
    /***/ }),
    
    /***/ "./node_modules/popper.js/dist/esm/popper.js":
    /*!***************************************************!*\
      !*** ./node_modules/popper.js/dist/esm/popper.js ***!
      \***************************************************/
    /*! exports provided: default */
    /***/ (function(module, __webpack_exports__, __webpack_require__) {
    
    "use strict";
    __webpack_require__.r(__webpack_exports__);
    /* WEBPACK VAR INJECTION */(function(global) {/**!
     * @fileOverview Kickass library to create and place poppers near their reference elements.
     * @version 1.15.0
     * @license
     * Copyright (c) 2016 Federico Zivolo and contributors
     *
     * Permission is hereby granted, free of charge, to any person obtaining a copy
     * of this software and associated documentation files (the "Software"), to deal
     * in the Software without restriction, including without limitation the rights
     * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     * copies of the Software, and to permit persons to whom the Software is
     * furnished to do so, subject to the following conditions:
     *
     * The above copyright notice and this permission notice shall be included in all
     * copies or substantial portions of the Software.
     *
     * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
     * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
     * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
     * SOFTWARE.
     */
    var isBrowser = typeof window !== 'undefined' && typeof document !== 'undefined';
    
    var longerTimeoutBrowsers = ['Edge', 'Trident', 'Firefox'];
    var timeoutDuration = 0;
    for (var i = 0; i < longerTimeoutBrowsers.length; i += 1) {
      if (isBrowser && navigator.userAgent.indexOf(longerTimeoutBrowsers[i]) >= 0) {
        timeoutDuration = 1;
        break;
      }
    }
    
    function microtaskDebounce(fn) {
      var called = false;
      return function () {
        if (called) {
          return;
        }
        called = true;
        window.Promise.resolve().then(function () {
          called = false;
          fn();
        });
      };
    }
    
    function taskDebounce(fn) {
      var scheduled = false;
      return function () {
        if (!scheduled) {
          scheduled = true;
          setTimeout(function () {
            scheduled = false;
            fn();
          }, timeoutDuration);
        }
      };
    }
    
    var supportsMicroTasks = isBrowser && window.Promise;
    
    /**
    * Create a debounced version of a method, that's asynchronously deferred
    * but called in the minimum time possible.
    *
    * @method
    * @memberof Popper.Utils
    * @argument {Function} fn
    * @returns {Function}
    */
    var debounce = supportsMicroTasks ? microtaskDebounce : taskDebounce;
    
    /**
     * Check if the given variable is a function
     * @method
     * @memberof Popper.Utils
     * @argument {Any} functionToCheck - variable to check
     * @returns {Boolean} answer to: is a function?
     */
    function isFunction(functionToCheck) {
      var getType = {};
      return functionToCheck && getType.toString.call(functionToCheck) === '[object Function]';
    }
    
    /**
     * Get CSS computed property of the given element
     * @method
     * @memberof Popper.Utils
     * @argument {Eement} element
     * @argument {String} property
     */
    function getStyleComputedProperty(element, property) {
      if (element.nodeType !== 1) {
        return [];
      }
      // NOTE: 1 DOM access here
      var window = element.ownerDocument.defaultView;
      var css = window.getComputedStyle(element, null);
      return property ? css[property] : css;
    }
    
    /**
     * Returns the parentNode or the host of the element
     * @method
     * @memberof Popper.Utils
     * @argument {Element} element
     * @returns {Element} parent
     */
    function getParentNode(element) {
      if (element.nodeName === 'HTML') {
        return element;
      }
      return element.parentNode || element.host;
    }
    
    /**
     * Returns the scrolling parent of the given element
     * @method
     * @memberof Popper.Utils
     * @argument {Element} element
     * @returns {Element} scroll parent
     */
    function getScrollParent(element) {
      // Return body, `getScroll` will take care to get the correct `scrollTop` from it
      if (!element) {
        return document.body;
      }
    
      switch (element.nodeName) {
        case 'HTML':
        case 'BODY':
          return element.ownerDocument.body;
        case '#document':
          return element.body;
      }
    
      // Firefox want us to check `-x` and `-y` variations as well
    
      var _getStyleComputedProp = getStyleComputedProperty(element),
          overflow = _getStyleComputedProp.overflow,
          overflowX = _getStyleComputedProp.overflowX,
          overflowY = _getStyleComputedProp.overflowY;
    
      if (/(auto|scroll|overlay)/.test(overflow + overflowY + overflowX)) {
        return element;
      }
    
      return getScrollParent(getParentNode(element));
    }
    
    var isIE11 = isBrowser && !!(window.MSInputMethodContext && document.documentMode);
    var isIE10 = isBrowser && /MSIE 10/.test(navigator.userAgent);
    
    /**
     * Determines if the browser is Internet Explorer
     * @method
     * @memberof Popper.Utils
     * @param {Number} version to check
     * @returns {Boolean} isIE
     */
    function isIE(version) {
      if (version === 11) {
        return isIE11;
      }
      if (version === 10) {
        return isIE10;
      }
      return isIE11 || isIE10;
    }
    
    /**
     * Returns the offset parent of the given element
     * @method
     * @memberof Popper.Utils
     * @argument {Element} element
     * @returns {Element} offset parent
     */
    function getOffsetParent(element) {
      if (!element) {
        return document.documentElement;
      }
    
      var noOffsetParent = isIE(10) ? document.body : null;
    
      // NOTE: 1 DOM access here
      var offsetParent = element.offsetParent || null;
      // Skip hidden elements which don't have an offsetParent
      while (offsetParent === noOffsetParent && element.nextElementSibling) {
        offsetParent = (element = element.nextElementSibling).offsetParent;
      }
    
      var nodeName = offsetParent && offsetParent.nodeName;
    
      if (!nodeName || nodeName === 'BODY' || nodeName === 'HTML') {
        return element ? element.ownerDocument.documentElement : document.documentElement;
      }
    
      // .offsetParent will return the closest TH, TD or TABLE in case
      // no offsetParent is present, I hate this job...
      if (['TH', 'TD', 'TABLE'].indexOf(offsetParent.nodeName) !== -1 && getStyleComputedProperty(offsetParent, 'position') === 'static') {
        return getOffsetParent(offsetParent);
      }
    
      return offsetParent;
    }
    
    function isOffsetContainer(element) {
      var nodeName = element.nodeName;
    
      if (nodeName === 'BODY') {
        return false;
      }
      return nodeName === 'HTML' || getOffsetParent(element.firstElementChild) === element;
    }
    
    /**
     * Finds the root node (document, shadowDOM root) of the given element
     * @method
     * @memberof Popper.Utils
     * @argument {Element} node
     * @returns {Element} root node
     */
    function getRoot(node) {
      if (node.parentNode !== null) {
        return getRoot(node.parentNode);
      }
    
      return node;
    }
    
    /**
     * Finds the offset parent common to the two provided nodes
     * @method
     * @memberof Popper.Utils
     * @argument {Element} element1
     * @argument {Element} element2
     * @returns {Element} common offset parent
     */
    function findCommonOffsetParent(element1, element2) {
      // This check is needed to avoid errors in case one of the elements isn't defined for any reason
      if (!element1 || !element1.nodeType || !element2 || !element2.nodeType) {
        return document.documentElement;
      }
    
      // Here we make sure to give as "start" the element that comes first in the DOM
      var order = element1.compareDocumentPosition(element2) & Node.DOCUMENT_POSITION_FOLLOWING;
      var start = order ? element1 : element2;
      var end = order ? element2 : element1;
    
      // Get common ancestor container
      var range = document.createRange();
      range.setStart(start, 0);
      range.setEnd(end, 0);
      var commonAncestorContainer = range.commonAncestorContainer;
    
      // Both nodes are inside #document
    
      if (element1 !== commonAncestorContainer && element2 !== commonAncestorContainer || start.contains(end)) {
        if (isOffsetContainer(commonAncestorContainer)) {
          return commonAncestorContainer;
        }
    
        return getOffsetParent(commonAncestorContainer);
      }
    
      // one of the nodes is inside shadowDOM, find which one
      var element1root = getRoot(element1);
      if (element1root.host) {
        return findCommonOffsetParent(element1root.host, element2);
      } else {
        return findCommonOffsetParent(element1, getRoot(element2).host);
      }
    }
    
    /**
     * Gets the scroll value of the given element in the given side (top and left)
     * @method
     * @memberof Popper.Utils
     * @argument {Element} element
     * @argument {String} side `top` or `left`
     * @returns {number} amount of scrolled pixels
     */
    function getScroll(element) {
      var side = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'top';
    
      var upperSide = side === 'top' ? 'scrollTop' : 'scrollLeft';
      var nodeName = element.nodeName;
    
      if (nodeName === 'BODY' || nodeName === 'HTML') {
        var html = element.ownerDocument.documentElement;
        var scrollingElement = element.ownerDocument.scrollingElement || html;
        return scrollingElement[upperSide];
      }
    
      return element[upperSide];
    }
    
    /*
     * Sum or subtract the element scroll values (left and top) from a given rect object
     * @method
     * @memberof Popper.Utils
     * @param {Object} rect - Rect object you want to change
     * @param {HTMLElement} element - The element from the function reads the scroll values
     * @param {Boolean} subtract - set to true if you want to subtract the scroll values
     * @return {Object} rect - The modifier rect object
     */
    function includeScroll(rect, element) {
      var subtract = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
    
      var scrollTop = getScroll(element, 'top');
      var scrollLeft = getScroll(element, 'left');
      var modifier = subtract ? -1 : 1;
      rect.top += scrollTop * modifier;
      rect.bottom += scrollTop * modifier;
      rect.left += scrollLeft * modifier;
      rect.right += scrollLeft * modifier;
      return rect;
    }
    
    /*
     * Helper to detect borders of a given element
     * @method
     * @memberof Popper.Utils
     * @param {CSSStyleDeclaration} styles
     * Result of `getStyleComputedProperty` on the given element
     * @param {String} axis - `x` or `y`
     * @return {number} borders - The borders size of the given axis
     */
    
    function getBordersSize(styles, axis) {
      var sideA = axis === 'x' ? 'Left' : 'Top';
      var sideB = sideA === 'Left' ? 'Right' : 'Bottom';
    
      return parseFloat(styles['border' + sideA + 'Width'], 10) + parseFloat(styles['border' + sideB + 'Width'], 10);
    }
    
    function getSize(axis, body, html, computedStyle) {
      return Math.max(body['offset' + axis], body['scroll' + axis], html['client' + axis], html['offset' + axis], html['scroll' + axis], isIE(10) ? parseInt(html['offset' + axis]) + parseInt(computedStyle['margin' + (axis === 'Height' ? 'Top' : 'Left')]) + parseInt(computedStyle['margin' + (axis === 'Height' ? 'Bottom' : 'Right')]) : 0);
    }
    
    function getWindowSizes(document) {
      var body = document.body;
      var html = document.documentElement;
      var computedStyle = isIE(10) && getComputedStyle(html);
    
      return {
        height: getSize('Height', body, html, computedStyle),
        width: getSize('Width', body, html, computedStyle)
      };
    }
    
    var classCallCheck = function (instance, Constructor) {
      if (!(instance instanceof Constructor)) {
        throw new TypeError("Cannot call a class as a function");
      }
    };
    
    var createClass = function () {
      function defineProperties(target, props) {
        for (var i = 0; i < props.length; i++) {
          var descriptor = props[i];
          descriptor.enumerable = descriptor.enumerable || false;
          descriptor.configurable = true;
          if ("value" in descriptor) descriptor.writable = true;
          Object.defineProperty(target, descriptor.key, descriptor);
        }
      }
    
      return function (Constructor, protoProps, staticProps) {
        if (protoProps) defineProperties(Constructor.prototype, protoProps);
        if (staticProps) defineProperties(Constructor, staticProps);
        return Constructor;
      };
    }();
    
    
    
    
    
    var defineProperty = function (obj, key, value) {
      if (key in obj) {
        Object.defineProperty(obj, key, {
          value: value,
          enumerable: true,
          configurable: true,
          writable: true
        });
      } else {
        obj[key] = value;
      }
    
      return obj;
    };
    
    var _extends = Object.assign || function (target) {
      for (var i = 1; i < arguments.length; i++) {
        var source = arguments[i];
    
        for (var key in source) {
          if (Object.prototype.hasOwnProperty.call(source, key)) {
            target[key] = source[key];
          }
        }
      }
    
      return target;
    };
    
    /**
     * Given element offsets, generate an output similar to getBoundingClientRect
     * @method
     * @memberof Popper.Utils
     * @argument {Object} offsets
     * @returns {Object} ClientRect like output
     */
    function getClientRect(offsets) {
      return _extends({}, offsets, {
        right: offsets.left + offsets.width,
        bottom: offsets.top + offsets.height
      });
    }
    
    /**
     * Get bounding client rect of given element
     * @method
     * @memberof Popper.Utils
     * @param {HTMLElement} element
     * @return {Object} client rect
     */
    function getBoundingClientRect(element) {
      var rect = {};
    
      // IE10 10 FIX: Please, don't ask, the element isn't
      // considered in DOM in some circumstances...
      // This isn't reproducible in IE10 compatibility mode of IE11
      try {
        if (isIE(10)) {
          rect = element.getBoundingClientRect();
          var scrollTop = getScroll(element, 'top');
          var scrollLeft = getScroll(element, 'left');
          rect.top += scrollTop;
          rect.left += scrollLeft;
          rect.bottom += scrollTop;
          rect.right += scrollLeft;
        } else {
          rect = element.getBoundingClientRect();
        }
      } catch (e) {}
    
      var result = {
        left: rect.left,
        top: rect.top,
        width: rect.right - rect.left,
        height: rect.bottom - rect.top
      };
    
      // subtract scrollbar size from sizes
      var sizes = element.nodeName === 'HTML' ? getWindowSizes(element.ownerDocument) : {};
      var width = sizes.width || element.clientWidth || result.right - result.left;
      var height = sizes.height || element.clientHeight || result.bottom - result.top;
    
      var horizScrollbar = element.offsetWidth - width;
      var vertScrollbar = element.offsetHeight - height;
    
      // if an hypothetical scrollbar is detected, we must be sure it's not a `border`
      // we make this check conditional for performance reasons
      if (horizScrollbar || vertScrollbar) {
        var styles = getStyleComputedProperty(element);
        horizScrollbar -= getBordersSize(styles, 'x');
        vertScrollbar -= getBordersSize(styles, 'y');
    
        result.width -= horizScrollbar;
        result.height -= vertScrollbar;
      }
    
      return getClientRect(result);
    }
    
    function getOffsetRectRelativeToArbitraryNode(children, parent) {
      var fixedPosition = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
    
      var isIE10 = isIE(10);
      var isHTML = parent.nodeName === 'HTML';
      var childrenRect = getBoundingClientRect(children);
      var parentRect = getBoundingClientRect(parent);
      var scrollParent = getScrollParent(children);
    
      var styles = getStyleComputedProperty(parent);
      var borderTopWidth = parseFloat(styles.borderTopWidth, 10);
      var borderLeftWidth = parseFloat(styles.borderLeftWidth, 10);
    
      // In cases where the parent is fixed, we must ignore negative scroll in offset calc
      if (fixedPosition && isHTML) {
        parentRect.top = Math.max(parentRect.top, 0);
        parentRect.left = Math.max(parentRect.left, 0);
      }
      var offsets = getClientRect({
        top: childrenRect.top - parentRect.top - borderTopWidth,
        left: childrenRect.left - parentRect.left - borderLeftWidth,
        width: childrenRect.width,
        height: childrenRect.height
      });
      offsets.marginTop = 0;
      offsets.marginLeft = 0;
    
      // Subtract margins of documentElement in case it's being used as parent
      // we do this only on HTML because it's the only element that behaves
      // differently when margins are applied to it. The margins are included in
      // the box of the documentElement, in the other cases not.
      if (!isIE10 && isHTML) {
        var marginTop = parseFloat(styles.marginTop, 10);
        var marginLeft = parseFloat(styles.marginLeft, 10);
    
        offsets.top -= borderTopWidth - marginTop;
        offsets.bottom -= borderTopWidth - marginTop;
        offsets.left -= borderLeftWidth - marginLeft;
        offsets.right -= borderLeftWidth - marginLeft;
    
        // Attach marginTop and marginLeft because in some circumstances we may need them
        offsets.marginTop = marginTop;
        offsets.marginLeft = marginLeft;
      }
    
      if (isIE10 && !fixedPosition ? parent.contains(scrollParent) : parent === scrollParent && scrollParent.nodeName !== 'BODY') {
        offsets = includeScroll(offsets, parent);
      }
    
      return offsets;
    }
    
    function getViewportOffsetRectRelativeToArtbitraryNode(element) {
      var excludeScroll = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
    
      var html = element.ownerDocument.documentElement;
      var relativeOffset = getOffsetRectRelativeToArbitraryNode(element, html);
      var width = Math.max(html.clientWidth, window.innerWidth || 0);
      var height = Math.max(html.clientHeight, window.innerHeight || 0);
    
      var scrollTop = !excludeScroll ? getScroll(html) : 0;
      var scrollLeft = !excludeScroll ? getScroll(html, 'left') : 0;
    
      var offset = {
        top: scrollTop - relativeOffset.top + relativeOffset.marginTop,
        left: scrollLeft - relativeOffset.left + relativeOffset.marginLeft,
        width: width,
        height: height
      };
    
      return getClientRect(offset);
    }
    
    /**
     * Check if the given element is fixed or is inside a fixed parent
     * @method
     * @memberof Popper.Utils
     * @argument {Element} element
     * @argument {Element} customContainer
     * @returns {Boolean} answer to "isFixed?"
     */
    function isFixed(element) {
      var nodeName = element.nodeName;
      if (nodeName === 'BODY' || nodeName === 'HTML') {
        return false;
      }
      if (getStyleComputedProperty(element, 'position') === 'fixed') {
        return true;
      }
      var parentNode = getParentNode(element);
      if (!parentNode) {
        return false;
      }
      return isFixed(parentNode);
    }
    
    /**
     * Finds the first parent of an element that has a transformed property defined
     * @method
     * @memberof Popper.Utils
     * @argument {Element} element
     * @returns {Element} first transformed parent or documentElement
     */
    
    function getFixedPositionOffsetParent(element) {
      // This check is needed to avoid errors in case one of the elements isn't defined for any reason
      if (!element || !element.parentElement || isIE()) {
        return document.documentElement;
      }
      var el = element.parentElement;
      while (el && getStyleComputedProperty(el, 'transform') === 'none') {
        el = el.parentElement;
      }
      return el || document.documentElement;
    }
    
    /**
     * Computed the boundaries limits and return them
     * @method
     * @memberof Popper.Utils
     * @param {HTMLElement} popper
     * @param {HTMLElement} reference
     * @param {number} padding
     * @param {HTMLElement} boundariesElement - Element used to define the boundaries
     * @param {Boolean} fixedPosition - Is in fixed position mode
     * @returns {Object} Coordinates of the boundaries
     */
    function getBoundaries(popper, reference, padding, boundariesElement) {
      var fixedPosition = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : false;
    
      // NOTE: 1 DOM access here
    
      var boundaries = { top: 0, left: 0 };
      var offsetParent = fixedPosition ? getFixedPositionOffsetParent(popper) : findCommonOffsetParent(popper, reference);
    
      // Handle viewport case
      if (boundariesElement === 'viewport') {
        boundaries = getViewportOffsetRectRelativeToArtbitraryNode(offsetParent, fixedPosition);
      } else {
        // Handle other cases based on DOM element used as boundaries
        var boundariesNode = void 0;
        if (boundariesElement === 'scrollParent') {
          boundariesNode = getScrollParent(getParentNode(reference));
          if (boundariesNode.nodeName === 'BODY') {
            boundariesNode = popper.ownerDocument.documentElement;
          }
        } else if (boundariesElement === 'window') {
          boundariesNode = popper.ownerDocument.documentElement;
        } else {
          boundariesNode = boundariesElement;
        }
    
        var offsets = getOffsetRectRelativeToArbitraryNode(boundariesNode, offsetParent, fixedPosition);
    
        // In case of HTML, we need a different computation
        if (boundariesNode.nodeName === 'HTML' && !isFixed(offsetParent)) {
          var _getWindowSizes = getWindowSizes(popper.ownerDocument),
              height = _getWindowSizes.height,
              width = _getWindowSizes.width;
    
          boundaries.top += offsets.top - offsets.marginTop;
          boundaries.bottom = height + offsets.top;
          boundaries.left += offsets.left - offsets.marginLeft;
          boundaries.right = width + offsets.left;
        } else {
          // for all the other DOM elements, this one is good
          boundaries = offsets;
        }
      }
    
      // Add paddings
      padding = padding || 0;
      var isPaddingNumber = typeof padding === 'number';
      boundaries.left += isPaddingNumber ? padding : padding.left || 0;
      boundaries.top += isPaddingNumber ? padding : padding.top || 0;
      boundaries.right -= isPaddingNumber ? padding : padding.right || 0;
      boundaries.bottom -= isPaddingNumber ? padding : padding.bottom || 0;
    
      return boundaries;
    }
    
    function getArea(_ref) {
      var width = _ref.width,
          height = _ref.height;
    
      return width * height;
    }
    
    /**
     * Utility used to transform the `auto` placement to the placement with more
     * available space.
     * @method
     * @memberof Popper.Utils
     * @argument {Object} data - The data object generated by update method
     * @argument {Object} options - Modifiers configuration and options
     * @returns {Object} The data object, properly modified
     */
    function computeAutoPlacement(placement, refRect, popper, reference, boundariesElement) {
      var padding = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : 0;
    
      if (placement.indexOf('auto') === -1) {
        return placement;
      }
    
      var boundaries = getBoundaries(popper, reference, padding, boundariesElement);
    
      var rects = {
        top: {
          width: boundaries.width,
          height: refRect.top - boundaries.top
        },
        right: {
          width: boundaries.right - refRect.right,
          height: boundaries.height
        },
        bottom: {
          width: boundaries.width,
          height: boundaries.bottom - refRect.bottom
        },
        left: {
          width: refRect.left - boundaries.left,
          height: boundaries.height
        }
      };
    
      var sortedAreas = Object.keys(rects).map(function (key) {
        return _extends({
          key: key
        }, rects[key], {
          area: getArea(rects[key])
        });
      }).sort(function (a, b) {
        return b.area - a.area;
      });
    
      var filteredAreas = sortedAreas.filter(function (_ref2) {
        var width = _ref2.width,
            height = _ref2.height;
        return width >= popper.clientWidth && height >= popper.clientHeight;
      });
    
      var computedPlacement = filteredAreas.length > 0 ? filteredAreas[0].key : sortedAreas[0].key;
    
      var variation = placement.split('-')[1];
    
      return computedPlacement + (variation ? '-' + variation : '');
    }
    
    /**
     * Get offsets to the reference element
     * @method
     * @memberof Popper.Utils
     * @param {Object} state
     * @param {Element} popper - the popper element
     * @param {Element} reference - the reference element (the popper will be relative to this)
     * @param {Element} fixedPosition - is in fixed position mode
     * @returns {Object} An object containing the offsets which will be applied to the popper
     */
    function getReferenceOffsets(state, popper, reference) {
      var fixedPosition = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : null;
    
      var commonOffsetParent = fixedPosition ? getFixedPositionOffsetParent(popper) : findCommonOffsetParent(popper, reference);
      return getOffsetRectRelativeToArbitraryNode(reference, commonOffsetParent, fixedPosition);
    }
    
    /**
     * Get the outer sizes of the given element (offset size + margins)
     * @method
     * @memberof Popper.Utils
     * @argument {Element} element
     * @returns {Object} object containing width and height properties
     */
    function getOuterSizes(element) {
      var window = element.ownerDocument.defaultView;
      var styles = window.getComputedStyle(element);
      var x = parseFloat(styles.marginTop || 0) + parseFloat(styles.marginBottom || 0);
      var y = parseFloat(styles.marginLeft || 0) + parseFloat(styles.marginRight || 0);
      var result = {
        width: element.offsetWidth + y,
        height: element.offsetHeight + x
      };
      return result;
    }
    
    /**
     * Get the opposite placement of the given one
     * @method
     * @memberof Popper.Utils
     * @argument {String} placement
     * @returns {String} flipped placement
     */
    function getOppositePlacement(placement) {
      var hash = { left: 'right', right: 'left', bottom: 'top', top: 'bottom' };
      return placement.replace(/left|right|bottom|top/g, function (matched) {
        return hash[matched];
      });
    }
    
    /**
     * Get offsets to the popper
     * @method
     * @memberof Popper.Utils
     * @param {Object} position - CSS position the Popper will get applied
     * @param {HTMLElement} popper - the popper element
     * @param {Object} referenceOffsets - the reference offsets (the popper will be relative to this)
     * @param {String} placement - one of the valid placement options
     * @returns {Object} popperOffsets - An object containing the offsets which will be applied to the popper
     */
    function getPopperOffsets(popper, referenceOffsets, placement) {
      placement = placement.split('-')[0];
    
      // Get popper node sizes
      var popperRect = getOuterSizes(popper);
    
      // Add position, width and height to our offsets object
      var popperOffsets = {
        width: popperRect.width,
        height: popperRect.height
      };
    
      // depending by the popper placement we have to compute its offsets slightly differently
      var isHoriz = ['right', 'left'].indexOf(placement) !== -1;
      var mainSide = isHoriz ? 'top' : 'left';
      var secondarySide = isHoriz ? 'left' : 'top';
      var measurement = isHoriz ? 'height' : 'width';
      var secondaryMeasurement = !isHoriz ? 'height' : 'width';
    
      popperOffsets[mainSide] = referenceOffsets[mainSide] + referenceOffsets[measurement] / 2 - popperRect[measurement] / 2;
      if (placement === secondarySide) {
        popperOffsets[secondarySide] = referenceOffsets[secondarySide] - popperRect[secondaryMeasurement];
      } else {
        popperOffsets[secondarySide] = referenceOffsets[getOppositePlacement(secondarySide)];
      }
    
      return popperOffsets;
    }
    
    /**
     * Mimics the `find` method of Array
     * @method
     * @memberof Popper.Utils
     * @argument {Array} arr
     * @argument prop
     * @argument value
     * @returns index or -1
     */
    function find(arr, check) {
      // use native find if supported
      if (Array.prototype.find) {
        return arr.find(check);
      }
    
      // use `filter` to obtain the same behavior of `find`
      return arr.filter(check)[0];
    }
    
    /**
     * Return the index of the matching object
     * @method
     * @memberof Popper.Utils
     * @argument {Array} arr
     * @argument prop
     * @argument value
     * @returns index or -1
     */
    function findIndex(arr, prop, value) {
      // use native findIndex if supported
      if (Array.prototype.findIndex) {
        return arr.findIndex(function (cur) {
          return cur[prop] === value;
        });
      }
    
      // use `find` + `indexOf` if `findIndex` isn't supported
      var match = find(arr, function (obj) {
        return obj[prop] === value;
      });
      return arr.indexOf(match);
    }
    
    /**
     * Loop trough the list of modifiers and run them in order,
     * each of them will then edit the data object.
     * @method
     * @memberof Popper.Utils
     * @param {dataObject} data
     * @param {Array} modifiers
     * @param {String} ends - Optional modifier name used as stopper
     * @returns {dataObject}
     */
    function runModifiers(modifiers, data, ends) {
      var modifiersToRun = ends === undefined ? modifiers : modifiers.slice(0, findIndex(modifiers, 'name', ends));
    
      modifiersToRun.forEach(function (modifier) {
        if (modifier['function']) {
          // eslint-disable-line dot-notation
          console.warn('`modifier.function` is deprecated, use `modifier.fn`!');
        }
        var fn = modifier['function'] || modifier.fn; // eslint-disable-line dot-notation
        if (modifier.enabled && isFunction(fn)) {
          // Add properties to offsets to make them a complete clientRect object
          // we do this before each modifier to make sure the previous one doesn't
          // mess with these values
          data.offsets.popper = getClientRect(data.offsets.popper);
          data.offsets.reference = getClientRect(data.offsets.reference);
    
          data = fn(data, modifier);
        }
      });
    
      return data;
    }
    
    /**
     * Updates the position of the popper, computing the new offsets and applying
     * the new style.<br />
     * Prefer `scheduleUpdate` over `update` because of performance reasons.
     * @method
     * @memberof Popper
     */
    function update() {
      // if popper is destroyed, don't perform any further update
      if (this.state.isDestroyed) {
        return;
      }
    
      var data = {
        instance: this,
        styles: {},
        arrowStyles: {},
        attributes: {},
        flipped: false,
        offsets: {}
      };
    
      // compute reference element offsets
      data.offsets.reference = getReferenceOffsets(this.state, this.popper, this.reference, this.options.positionFixed);
    
      // compute auto placement, store placement inside the data object,
      // modifiers will be able to edit `placement` if needed
      // and refer to originalPlacement to know the original value
      data.placement = computeAutoPlacement(this.options.placement, data.offsets.reference, this.popper, this.reference, this.options.modifiers.flip.boundariesElement, this.options.modifiers.flip.padding);
    
      // store the computed placement inside `originalPlacement`
      data.originalPlacement = data.placement;
    
      data.positionFixed = this.options.positionFixed;
    
      // compute the popper offsets
      data.offsets.popper = getPopperOffsets(this.popper, data.offsets.reference, data.placement);
    
      data.offsets.popper.position = this.options.positionFixed ? 'fixed' : 'absolute';
    
      // run the modifiers
      data = runModifiers(this.modifiers, data);
    
      // the first `update` will call `onCreate` callback
      // the other ones will call `onUpdate` callback
      if (!this.state.isCreated) {
        this.state.isCreated = true;
        this.options.onCreate(data);
      } else {
        this.options.onUpdate(data);
      }
    }
    
    /**
     * Helper used to know if the given modifier is enabled.
     * @method
     * @memberof Popper.Utils
     * @returns {Boolean}
     */
    function isModifierEnabled(modifiers, modifierName) {
      return modifiers.some(function (_ref) {
        var name = _ref.name,
            enabled = _ref.enabled;
        return enabled && name === modifierName;
      });
    }
    
    /**
     * Get the prefixed supported property name
     * @method
     * @memberof Popper.Utils
     * @argument {String} property (camelCase)
     * @returns {String} prefixed property (camelCase or PascalCase, depending on the vendor prefix)
     */
    function getSupportedPropertyName(property) {
      var prefixes = [false, 'ms', 'Webkit', 'Moz', 'O'];
      var upperProp = property.charAt(0).toUpperCase() + property.slice(1);
    
      for (var i = 0; i < prefixes.length; i++) {
        var prefix = prefixes[i];
        var toCheck = prefix ? '' + prefix + upperProp : property;
        if (typeof document.body.style[toCheck] !== 'undefined') {
          return toCheck;
        }
      }
      return null;
    }
    
    /**
     * Destroys the popper.
     * @method
     * @memberof Popper
     */
    function destroy() {
      this.state.isDestroyed = true;
    
      // touch DOM only if `applyStyle` modifier is enabled
      if (isModifierEnabled(this.modifiers, 'applyStyle')) {
        this.popper.removeAttribute('x-placement');
        this.popper.style.position = '';
        this.popper.style.top = '';
        this.popper.style.left = '';
        this.popper.style.right = '';
        this.popper.style.bottom = '';
        this.popper.style.willChange = '';
        this.popper.style[getSupportedPropertyName('transform')] = '';
      }
    
      this.disableEventListeners();
    
      // remove the popper if user explicity asked for the deletion on destroy
      // do not use `remove` because IE11 doesn't support it
      if (this.options.removeOnDestroy) {
        this.popper.parentNode.removeChild(this.popper);
      }
      return this;
    }
    
    /**
     * Get the window associated with the element
     * @argument {Element} element
     * @returns {Window}
     */
    function getWindow(element) {
      var ownerDocument = element.ownerDocument;
      return ownerDocument ? ownerDocument.defaultView : window;
    }
    
    function attachToScrollParents(scrollParent, event, callback, scrollParents) {
      var isBody = scrollParent.nodeName === 'BODY';
      var target = isBody ? scrollParent.ownerDocument.defaultView : scrollParent;
      target.addEventListener(event, callback, { passive: true });
    
      if (!isBody) {
        attachToScrollParents(getScrollParent(target.parentNode), event, callback, scrollParents);
      }
      scrollParents.push(target);
    }
    
    /**
     * Setup needed event listeners used to update the popper position
     * @method
     * @memberof Popper.Utils
     * @private
     */
    function setupEventListeners(reference, options, state, updateBound) {
      // Resize event listener on window
      state.updateBound = updateBound;
      getWindow(reference).addEventListener('resize', state.updateBound, { passive: true });
    
      // Scroll event listener on scroll parents
      var scrollElement = getScrollParent(reference);
      attachToScrollParents(scrollElement, 'scroll', state.updateBound, state.scrollParents);
      state.scrollElement = scrollElement;
      state.eventsEnabled = true;
    
      return state;
    }
    
    /**
     * It will add resize/scroll events and start recalculating
     * position of the popper element when they are triggered.
     * @method
     * @memberof Popper
     */
    function enableEventListeners() {
      if (!this.state.eventsEnabled) {
        this.state = setupEventListeners(this.reference, this.options, this.state, this.scheduleUpdate);
      }
    }
    
    /**
     * Remove event listeners used to update the popper position
     * @method
     * @memberof Popper.Utils
     * @private
     */
    function removeEventListeners(reference, state) {
      // Remove resize event listener on window
      getWindow(reference).removeEventListener('resize', state.updateBound);
    
      // Remove scroll event listener on scroll parents
      state.scrollParents.forEach(function (target) {
        target.removeEventListener('scroll', state.updateBound);
      });
    
      // Reset state
      state.updateBound = null;
      state.scrollParents = [];
      state.scrollElement = null;
      state.eventsEnabled = false;
      return state;
    }
    
    /**
     * It will remove resize/scroll events and won't recalculate popper position
     * when they are triggered. It also won't trigger `onUpdate` callback anymore,
     * unless you call `update` method manually.
     * @method
     * @memberof Popper
     */
    function disableEventListeners() {
      if (this.state.eventsEnabled) {
        cancelAnimationFrame(this.scheduleUpdate);
        this.state = removeEventListeners(this.reference, this.state);
      }
    }
    
    /**
     * Tells if a given input is a number
     * @method
     * @memberof Popper.Utils
     * @param {*} input to check
     * @return {Boolean}
     */
    function isNumeric(n) {
      return n !== '' && !isNaN(parseFloat(n)) && isFinite(n);
    }
    
    /**
     * Set the style to the given popper
     * @method
     * @memberof Popper.Utils
     * @argument {Element} element - Element to apply the style to
     * @argument {Object} styles
     * Object with a list of properties and values which will be applied to the element
     */
    function setStyles(element, styles) {
      Object.keys(styles).forEach(function (prop) {
        var unit = '';
        // add unit if the value is numeric and is one of the following
        if (['width', 'height', 'top', 'right', 'bottom', 'left'].indexOf(prop) !== -1 && isNumeric(styles[prop])) {
          unit = 'px';
        }
        element.style[prop] = styles[prop] + unit;
      });
    }
    
    /**
     * Set the attributes to the given popper
     * @method
     * @memberof Popper.Utils
     * @argument {Element} element - Element to apply the attributes to
     * @argument {Object} styles
     * Object with a list of properties and values which will be applied to the element
     */
    function setAttributes(element, attributes) {
      Object.keys(attributes).forEach(function (prop) {
        var value = attributes[prop];
        if (value !== false) {
          element.setAttribute(prop, attributes[prop]);
        } else {
          element.removeAttribute(prop);
        }
      });
    }
    
    /**
     * @function
     * @memberof Modifiers
     * @argument {Object} data - The data object generated by `update` method
     * @argument {Object} data.styles - List of style properties - values to apply to popper element
     * @argument {Object} data.attributes - List of attribute properties - values to apply to popper element
     * @argument {Object} options - Modifiers configuration and options
     * @returns {Object} The same data object
     */
    function applyStyle(data) {
      // any property present in `data.styles` will be applied to the popper,
      // in this way we can make the 3rd party modifiers add custom styles to it
      // Be aware, modifiers could override the properties defined in the previous
      // lines of this modifier!
      setStyles(data.instance.popper, data.styles);
    
      // any property present in `data.attributes` will be applied to the popper,
      // they will be set as HTML attributes of the element
      setAttributes(data.instance.popper, data.attributes);
    
      // if arrowElement is defined and arrowStyles has some properties
      if (data.arrowElement && Object.keys(data.arrowStyles).length) {
        setStyles(data.arrowElement, data.arrowStyles);
      }
    
      return data;
    }
    
    /**
     * Set the x-placement attribute before everything else because it could be used
     * to add margins to the popper margins needs to be calculated to get the
     * correct popper offsets.
     * @method
     * @memberof Popper.modifiers
     * @param {HTMLElement} reference - The reference element used to position the popper
     * @param {HTMLElement} popper - The HTML element used as popper
     * @param {Object} options - Popper.js options
     */
    function applyStyleOnLoad(reference, popper, options, modifierOptions, state) {
      // compute reference element offsets
      var referenceOffsets = getReferenceOffsets(state, popper, reference, options.positionFixed);
    
      // compute auto placement, store placement inside the data object,
      // modifiers will be able to edit `placement` if needed
      // and refer to originalPlacement to know the original value
      var placement = computeAutoPlacement(options.placement, referenceOffsets, popper, reference, options.modifiers.flip.boundariesElement, options.modifiers.flip.padding);
    
      popper.setAttribute('x-placement', placement);
    
      // Apply `position` to popper before anything else because
      // without the position applied we can't guarantee correct computations
      setStyles(popper, { position: options.positionFixed ? 'fixed' : 'absolute' });
    
      return options;
    }
    
    /**
     * @function
     * @memberof Popper.Utils
     * @argument {Object} data - The data object generated by `update` method
     * @argument {Boolean} shouldRound - If the offsets should be rounded at all
     * @returns {Object} The popper's position offsets rounded
     *
     * The tale of pixel-perfect positioning. It's still not 100% perfect, but as
     * good as it can be within reason.
     * Discussion here: https://github.com/FezVrasta/popper.js/pull/715
     *
     * Low DPI screens cause a popper to be blurry if not using full pixels (Safari
     * as well on High DPI screens).
     *
     * Firefox prefers no rounding for positioning and does not have blurriness on
     * high DPI screens.
     *
     * Only horizontal placement and left/right values need to be considered.
     */
    function getRoundedOffsets(data, shouldRound) {
      var _data$offsets = data.offsets,
          popper = _data$offsets.popper,
          reference = _data$offsets.reference;
      var round = Math.round,
          floor = Math.floor;
    
      var noRound = function noRound(v) {
        return v;
      };
    
      var referenceWidth = round(reference.width);
      var popperWidth = round(popper.width);
    
      var isVertical = ['left', 'right'].indexOf(data.placement) !== -1;
      var isVariation = data.placement.indexOf('-') !== -1;
      var sameWidthParity = referenceWidth % 2 === popperWidth % 2;
      var bothOddWidth = referenceWidth % 2 === 1 && popperWidth % 2 === 1;
    
      var horizontalToInteger = !shouldRound ? noRound : isVertical || isVariation || sameWidthParity ? round : floor;
      var verticalToInteger = !shouldRound ? noRound : round;
    
      return {
        left: horizontalToInteger(bothOddWidth && !isVariation && shouldRound ? popper.left - 1 : popper.left),
        top: verticalToInteger(popper.top),
        bottom: verticalToInteger(popper.bottom),
        right: horizontalToInteger(popper.right)
      };
    }
    
    var isFirefox = isBrowser && /Firefox/i.test(navigator.userAgent);
    
    /**
     * @function
     * @memberof Modifiers
     * @argument {Object} data - The data object generated by `update` method
     * @argument {Object} options - Modifiers configuration and options
     * @returns {Object} The data object, properly modified
     */
    function computeStyle(data, options) {
      var x = options.x,
          y = options.y;
      var popper = data.offsets.popper;
    
      // Remove this legacy support in Popper.js v2
    
      var legacyGpuAccelerationOption = find(data.instance.modifiers, function (modifier) {
        return modifier.name === 'applyStyle';
      }).gpuAcceleration;
      if (legacyGpuAccelerationOption !== undefined) {
        console.warn('WARNING: `gpuAcceleration` option moved to `computeStyle` modifier and will not be supported in future versions of Popper.js!');
      }
      var gpuAcceleration = legacyGpuAccelerationOption !== undefined ? legacyGpuAccelerationOption : options.gpuAcceleration;
    
      var offsetParent = getOffsetParent(data.instance.popper);
      var offsetParentRect = getBoundingClientRect(offsetParent);
    
      // Styles
      var styles = {
        position: popper.position
      };
    
      var offsets = getRoundedOffsets(data, window.devicePixelRatio < 2 || !isFirefox);
    
      var sideA = x === 'bottom' ? 'top' : 'bottom';
      var sideB = y === 'right' ? 'left' : 'right';
    
      // if gpuAcceleration is set to `true` and transform is supported,
      //  we use `translate3d` to apply the position to the popper we
      // automatically use the supported prefixed version if needed
      var prefixedProperty = getSupportedPropertyName('transform');
    
      // now, let's make a step back and look at this code closely (wtf?)
      // If the content of the popper grows once it's been positioned, it
      // may happen that the popper gets misplaced because of the new content
      // overflowing its reference element
      // To avoid this problem, we provide two options (x and y), which allow
      // the consumer to define the offset origin.
      // If we position a popper on top of a reference element, we can set
      // `x` to `top` to make the popper grow towards its top instead of
      // its bottom.
      var left = void 0,
          top = void 0;
      if (sideA === 'bottom') {
        // when offsetParent is <html> the positioning is relative to the bottom of the screen (excluding the scrollbar)
        // and not the bottom of the html element
        if (offsetParent.nodeName === 'HTML') {
          top = -offsetParent.clientHeight + offsets.bottom;
        } else {
          top = -offsetParentRect.height + offsets.bottom;
        }
      } else {
        top = offsets.top;
      }
      if (sideB === 'right') {
        if (offsetParent.nodeName === 'HTML') {
          left = -offsetParent.clientWidth + offsets.right;
        } else {
          left = -offsetParentRect.width + offsets.right;
        }
      } else {
        left = offsets.left;
      }
      if (gpuAcceleration && prefixedProperty) {
        styles[prefixedProperty] = 'translate3d(' + left + 'px, ' + top + 'px, 0)';
        styles[sideA] = 0;
        styles[sideB] = 0;
        styles.willChange = 'transform';
      } else {
        // othwerise, we use the standard `top`, `left`, `bottom` and `right` properties
        var invertTop = sideA === 'bottom' ? -1 : 1;
        var invertLeft = sideB === 'right' ? -1 : 1;
        styles[sideA] = top * invertTop;
        styles[sideB] = left * invertLeft;
        styles.willChange = sideA + ', ' + sideB;
      }
    
      // Attributes
      var attributes = {
        'x-placement': data.placement
      };
    
      // Update `data` attributes, styles and arrowStyles
      data.attributes = _extends({}, attributes, data.attributes);
      data.styles = _extends({}, styles, data.styles);
      data.arrowStyles = _extends({}, data.offsets.arrow, data.arrowStyles);
    
      return data;
    }
    
    /**
     * Helper used to know if the given modifier depends from another one.<br />
     * It checks if the needed modifier is listed and enabled.
     * @method
     * @memberof Popper.Utils
     * @param {Array} modifiers - list of modifiers
     * @param {String} requestingName - name of requesting modifier
     * @param {String} requestedName - name of requested modifier
     * @returns {Boolean}
     */
    function isModifierRequired(modifiers, requestingName, requestedName) {
      var requesting = find(modifiers, function (_ref) {
        var name = _ref.name;
        return name === requestingName;
      });
    
      var isRequired = !!requesting && modifiers.some(function (modifier) {
        return modifier.name === requestedName && modifier.enabled && modifier.order < requesting.order;
      });
    
      if (!isRequired) {
        var _requesting = '`' + requestingName + '`';
        var requested = '`' + requestedName + '`';
        console.warn(requested + ' modifier is required by ' + _requesting + ' modifier in order to work, be sure to include it before ' + _requesting + '!');
      }
      return isRequired;
    }
    
    /**
     * @function
     * @memberof Modifiers
     * @argument {Object} data - The data object generated by update method
     * @argument {Object} options - Modifiers configuration and options
     * @returns {Object} The data object, properly modified
     */
    function arrow(data, options) {
      var _data$offsets$arrow;
    
      // arrow depends on keepTogether in order to work
      if (!isModifierRequired(data.instance.modifiers, 'arrow', 'keepTogether')) {
        return data;
      }
    
      var arrowElement = options.element;
    
      // if arrowElement is a string, suppose it's a CSS selector
      if (typeof arrowElement === 'string') {
        arrowElement = data.instance.popper.querySelector(arrowElement);
    
        // if arrowElement is not found, don't run the modifier
        if (!arrowElement) {
          return data;
        }
      } else {
        // if the arrowElement isn't a query selector we must check that the
        // provided DOM node is child of its popper node
        if (!data.instance.popper.contains(arrowElement)) {
          console.warn('WARNING: `arrow.element` must be child of its popper element!');
          return data;
        }
      }
    
      var placement = data.placement.split('-')[0];
      var _data$offsets = data.offsets,
          popper = _data$offsets.popper,
          reference = _data$offsets.reference;
    
      var isVertical = ['left', 'right'].indexOf(placement) !== -1;
    
      var len = isVertical ? 'height' : 'width';
      var sideCapitalized = isVertical ? 'Top' : 'Left';
      var side = sideCapitalized.toLowerCase();
      var altSide = isVertical ? 'left' : 'top';
      var opSide = isVertical ? 'bottom' : 'right';
      var arrowElementSize = getOuterSizes(arrowElement)[len];
    
      //
      // extends keepTogether behavior making sure the popper and its
      // reference have enough pixels in conjunction
      //
    
      // top/left side
      if (reference[opSide] - arrowElementSize < popper[side]) {
        data.offsets.popper[side] -= popper[side] - (reference[opSide] - arrowElementSize);
      }
      // bottom/right side
      if (reference[side] + arrowElementSize > popper[opSide]) {
        data.offsets.popper[side] += reference[side] + arrowElementSize - popper[opSide];
      }
      data.offsets.popper = getClientRect(data.offsets.popper);
    
      // compute center of the popper
      var center = reference[side] + reference[len] / 2 - arrowElementSize / 2;
    
      // Compute the sideValue using the updated popper offsets
      // take popper margin in account because we don't have this info available
      var css = getStyleComputedProperty(data.instance.popper);
      var popperMarginSide = parseFloat(css['margin' + sideCapitalized], 10);
      var popperBorderSide = parseFloat(css['border' + sideCapitalized + 'Width'], 10);
      var sideValue = center - data.offsets.popper[side] - popperMarginSide - popperBorderSide;
    
      // prevent arrowElement from being placed not contiguously to its popper
      sideValue = Math.max(Math.min(popper[len] - arrowElementSize, sideValue), 0);
    
      data.arrowElement = arrowElement;
      data.offsets.arrow = (_data$offsets$arrow = {}, defineProperty(_data$offsets$arrow, side, Math.round(sideValue)), defineProperty(_data$offsets$arrow, altSide, ''), _data$offsets$arrow);
    
      return data;
    }
    
    /**
     * Get the opposite placement variation of the given one
     * @method
     * @memberof Popper.Utils
     * @argument {String} placement variation
     * @returns {String} flipped placement variation
     */
    function getOppositeVariation(variation) {
      if (variation === 'end') {
        return 'start';
      } else if (variation === 'start') {
        return 'end';
      }
      return variation;
    }
    
    /**
     * List of accepted placements to use as values of the `placement` option.<br />
     * Valid placements are:
     * - `auto`
     * - `top`
     * - `right`
     * - `bottom`
     * - `left`
     *
     * Each placement can have a variation from this list:
     * - `-start`
     * - `-end`
     *
     * Variations are interpreted easily if you think of them as the left to right
     * written languages. Horizontally (`top` and `bottom`), `start` is left and `end`
     * is right.<br />
     * Vertically (`left` and `right`), `start` is top and `end` is bottom.
     *
     * Some valid examples are:
     * - `top-end` (on top of reference, right aligned)
     * - `right-start` (on right of reference, top aligned)
     * - `bottom` (on bottom, centered)
     * - `auto-end` (on the side with more space available, alignment depends by placement)
     *
     * @static
     * @type {Array}
     * @enum {String}
     * @readonly
     * @method placements
     * @memberof Popper
     */
    var placements = ['auto-start', 'auto', 'auto-end', 'top-start', 'top', 'top-end', 'right-start', 'right', 'right-end', 'bottom-end', 'bottom', 'bottom-start', 'left-end', 'left', 'left-start'];
    
    // Get rid of `auto` `auto-start` and `auto-end`
    var validPlacements = placements.slice(3);
    
    /**
     * Given an initial placement, returns all the subsequent placements
     * clockwise (or counter-clockwise).
     *
     * @method
     * @memberof Popper.Utils
     * @argument {String} placement - A valid placement (it accepts variations)
     * @argument {Boolean} counter - Set to true to walk the placements counterclockwise
     * @returns {Array} placements including their variations
     */
    function clockwise(placement) {
      var counter = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
    
      var index = validPlacements.indexOf(placement);
      var arr = validPlacements.slice(index + 1).concat(validPlacements.slice(0, index));
      return counter ? arr.reverse() : arr;
    }
    
    var BEHAVIORS = {
      FLIP: 'flip',
      CLOCKWISE: 'clockwise',
      COUNTERCLOCKWISE: 'counterclockwise'
    };
    
    /**
     * @function
     * @memberof Modifiers
     * @argument {Object} data - The data object generated by update method
     * @argument {Object} options - Modifiers configuration and options
     * @returns {Object} The data object, properly modified
     */
    function flip(data, options) {
      // if `inner` modifier is enabled, we can't use the `flip` modifier
      if (isModifierEnabled(data.instance.modifiers, 'inner')) {
        return data;
      }
    
      if (data.flipped && data.placement === data.originalPlacement) {
        // seems like flip is trying to loop, probably there's not enough space on any of the flippable sides
        return data;
      }
    
      var boundaries = getBoundaries(data.instance.popper, data.instance.reference, options.padding, options.boundariesElement, data.positionFixed);
    
      var placement = data.placement.split('-')[0];
      var placementOpposite = getOppositePlacement(placement);
      var variation = data.placement.split('-')[1] || '';
    
      var flipOrder = [];
    
      switch (options.behavior) {
        case BEHAVIORS.FLIP:
          flipOrder = [placement, placementOpposite];
          break;
        case BEHAVIORS.CLOCKWISE:
          flipOrder = clockwise(placement);
          break;
        case BEHAVIORS.COUNTERCLOCKWISE:
          flipOrder = clockwise(placement, true);
          break;
        default:
          flipOrder = options.behavior;
      }
    
      flipOrder.forEach(function (step, index) {
        if (placement !== step || flipOrder.length === index + 1) {
          return data;
        }
    
        placement = data.placement.split('-')[0];
        placementOpposite = getOppositePlacement(placement);
    
        var popperOffsets = data.offsets.popper;
        var refOffsets = data.offsets.reference;
    
        // using floor because the reference offsets may contain decimals we are not going to consider here
        var floor = Math.floor;
        var overlapsRef = placement === 'left' && floor(popperOffsets.right) > floor(refOffsets.left) || placement === 'right' && floor(popperOffsets.left) < floor(refOffsets.right) || placement === 'top' && floor(popperOffsets.bottom) > floor(refOffsets.top) || placement === 'bottom' && floor(popperOffsets.top) < floor(refOffsets.bottom);
    
        var overflowsLeft = floor(popperOffsets.left) < floor(boundaries.left);
        var overflowsRight = floor(popperOffsets.right) > floor(boundaries.right);
        var overflowsTop = floor(popperOffsets.top) < floor(boundaries.top);
        var overflowsBottom = floor(popperOffsets.bottom) > floor(boundaries.bottom);
    
        var overflowsBoundaries = placement === 'left' && overflowsLeft || placement === 'right' && overflowsRight || placement === 'top' && overflowsTop || placement === 'bottom' && overflowsBottom;
    
        // flip the variation if required
        var isVertical = ['top', 'bottom'].indexOf(placement) !== -1;
    
        // flips variation if reference element overflows boundaries
        var flippedVariationByRef = !!options.flipVariations && (isVertical && variation === 'start' && overflowsLeft || isVertical && variation === 'end' && overflowsRight || !isVertical && variation === 'start' && overflowsTop || !isVertical && variation === 'end' && overflowsBottom);
    
        // flips variation if popper content overflows boundaries
        var flippedVariationByContent = !!options.flipVariationsByContent && (isVertical && variation === 'start' && overflowsRight || isVertical && variation === 'end' && overflowsLeft || !isVertical && variation === 'start' && overflowsBottom || !isVertical && variation === 'end' && overflowsTop);
    
        var flippedVariation = flippedVariationByRef || flippedVariationByContent;
    
        if (overlapsRef || overflowsBoundaries || flippedVariation) {
          // this boolean to detect any flip loop
          data.flipped = true;
    
          if (overlapsRef || overflowsBoundaries) {
            placement = flipOrder[index + 1];
          }
    
          if (flippedVariation) {
            variation = getOppositeVariation(variation);
          }
    
          data.placement = placement + (variation ? '-' + variation : '');
    
          // this object contains `position`, we want to preserve it along with
          // any additional property we may add in the future
          data.offsets.popper = _extends({}, data.offsets.popper, getPopperOffsets(data.instance.popper, data.offsets.reference, data.placement));
    
          data = runModifiers(data.instance.modifiers, data, 'flip');
        }
      });
      return data;
    }
    
    /**
     * @function
     * @memberof Modifiers
     * @argument {Object} data - The data object generated by update method
     * @argument {Object} options - Modifiers configuration and options
     * @returns {Object} The data object, properly modified
     */
    function keepTogether(data) {
      var _data$offsets = data.offsets,
          popper = _data$offsets.popper,
          reference = _data$offsets.reference;
    
      var placement = data.placement.split('-')[0];
      var floor = Math.floor;
      var isVertical = ['top', 'bottom'].indexOf(placement) !== -1;
      var side = isVertical ? 'right' : 'bottom';
      var opSide = isVertical ? 'left' : 'top';
      var measurement = isVertical ? 'width' : 'height';
    
      if (popper[side] < floor(reference[opSide])) {
        data.offsets.popper[opSide] = floor(reference[opSide]) - popper[measurement];
      }
      if (popper[opSide] > floor(reference[side])) {
        data.offsets.popper[opSide] = floor(reference[side]);
      }
    
      return data;
    }
    
    /**
     * Converts a string containing value + unit into a px value number
     * @function
     * @memberof {modifiers~offset}
     * @private
     * @argument {String} str - Value + unit string
     * @argument {String} measurement - `height` or `width`
     * @argument {Object} popperOffsets
     * @argument {Object} referenceOffsets
     * @returns {Number|String}
     * Value in pixels, or original string if no values were extracted
     */
    function toValue(str, measurement, popperOffsets, referenceOffsets) {
      // separate value from unit
      var split = str.match(/((?:\-|\+)?\d*\.?\d*)(.*)/);
      var value = +split[1];
      var unit = split[2];
    
      // If it's not a number it's an operator, I guess
      if (!value) {
        return str;
      }
    
      if (unit.indexOf('%') === 0) {
        var element = void 0;
        switch (unit) {
          case '%p':
            element = popperOffsets;
            break;
          case '%':
          case '%r':
          default:
            element = referenceOffsets;
        }
    
        var rect = getClientRect(element);
        return rect[measurement] / 100 * value;
      } else if (unit === 'vh' || unit === 'vw') {
        // if is a vh or vw, we calculate the size based on the viewport
        var size = void 0;
        if (unit === 'vh') {
          size = Math.max(document.documentElement.clientHeight, window.innerHeight || 0);
        } else {
          size = Math.max(document.documentElement.clientWidth, window.innerWidth || 0);
        }
        return size / 100 * value;
      } else {
        // if is an explicit pixel unit, we get rid of the unit and keep the value
        // if is an implicit unit, it's px, and we return just the value
        return value;
      }
    }
    
    /**
     * Parse an `offset` string to extrapolate `x` and `y` numeric offsets.
     * @function
     * @memberof {modifiers~offset}
     * @private
     * @argument {String} offset
     * @argument {Object} popperOffsets
     * @argument {Object} referenceOffsets
     * @argument {String} basePlacement
     * @returns {Array} a two cells array with x and y offsets in numbers
     */
    function parseOffset(offset, popperOffsets, referenceOffsets, basePlacement) {
      var offsets = [0, 0];
    
      // Use height if placement is left or right and index is 0 otherwise use width
      // in this way the first offset will use an axis and the second one
      // will use the other one
      var useHeight = ['right', 'left'].indexOf(basePlacement) !== -1;
    
      // Split the offset string to obtain a list of values and operands
      // The regex addresses values with the plus or minus sign in front (+10, -20, etc)
      var fragments = offset.split(/(\+|\-)/).map(function (frag) {
        return frag.trim();
      });
    
      // Detect if the offset string contains a pair of values or a single one
      // they could be separated by comma or space
      var divider = fragments.indexOf(find(fragments, function (frag) {
        return frag.search(/,|\s/) !== -1;
      }));
    
      if (fragments[divider] && fragments[divider].indexOf(',') === -1) {
        console.warn('Offsets separated by white space(s) are deprecated, use a comma (,) instead.');
      }
    
      // If divider is found, we divide the list of values and operands to divide
      // them by ofset X and Y.
      var splitRegex = /\s*,\s*|\s+/;
      var ops = divider !== -1 ? [fragments.slice(0, divider).concat([fragments[divider].split(splitRegex)[0]]), [fragments[divider].split(splitRegex)[1]].concat(fragments.slice(divider + 1))] : [fragments];
    
      // Convert the values with units to absolute pixels to allow our computations
      ops = ops.map(function (op, index) {
        // Most of the units rely on the orientation of the popper
        var measurement = (index === 1 ? !useHeight : useHeight) ? 'height' : 'width';
        var mergeWithPrevious = false;
        return op
        // This aggregates any `+` or `-` sign that aren't considered operators
        // e.g.: 10 + +5 => [10, +, +5]
        .reduce(function (a, b) {
          if (a[a.length - 1] === '' && ['+', '-'].indexOf(b) !== -1) {
            a[a.length - 1] = b;
            mergeWithPrevious = true;
            return a;
          } else if (mergeWithPrevious) {
            a[a.length - 1] += b;
            mergeWithPrevious = false;
            return a;
          } else {
            return a.concat(b);
          }
        }, [])
        // Here we convert the string values into number values (in px)
        .map(function (str) {
          return toValue(str, measurement, popperOffsets, referenceOffsets);
        });
      });
    
      // Loop trough the offsets arrays and execute the operations
      ops.forEach(function (op, index) {
        op.forEach(function (frag, index2) {
          if (isNumeric(frag)) {
            offsets[index] += frag * (op[index2 - 1] === '-' ? -1 : 1);
          }
        });
      });
      return offsets;
    }
    
    /**
     * @function
     * @memberof Modifiers
     * @argument {Object} data - The data object generated by update method
     * @argument {Object} options - Modifiers configuration and options
     * @argument {Number|String} options.offset=0
     * The offset value as described in the modifier description
     * @returns {Object} The data object, properly modified
     */
    function offset(data, _ref) {
      var offset = _ref.offset;
      var placement = data.placement,
          _data$offsets = data.offsets,
          popper = _data$offsets.popper,
          reference = _data$offsets.reference;
    
      var basePlacement = placement.split('-')[0];
    
      var offsets = void 0;
      if (isNumeric(+offset)) {
        offsets = [+offset, 0];
      } else {
        offsets = parseOffset(offset, popper, reference, basePlacement);
      }
    
      if (basePlacement === 'left') {
        popper.top += offsets[0];
        popper.left -= offsets[1];
      } else if (basePlacement === 'right') {
        popper.top += offsets[0];
        popper.left += offsets[1];
      } else if (basePlacement === 'top') {
        popper.left += offsets[0];
        popper.top -= offsets[1];
      } else if (basePlacement === 'bottom') {
        popper.left += offsets[0];
        popper.top += offsets[1];
      }
    
      data.popper = popper;
      return data;
    }
    
    /**
     * @function
     * @memberof Modifiers
     * @argument {Object} data - The data object generated by `update` method
     * @argument {Object} options - Modifiers configuration and options
     * @returns {Object} The data object, properly modified
     */
    function preventOverflow(data, options) {
      var boundariesElement = options.boundariesElement || getOffsetParent(data.instance.popper);
    
      // If offsetParent is the reference element, we really want to
      // go one step up and use the next offsetParent as reference to
      // avoid to make this modifier completely useless and look like broken
      if (data.instance.reference === boundariesElement) {
        boundariesElement = getOffsetParent(boundariesElement);
      }
    
      // NOTE: DOM access here
      // resets the popper's position so that the document size can be calculated excluding
      // the size of the popper element itself
      var transformProp = getSupportedPropertyName('transform');
      var popperStyles = data.instance.popper.style; // assignment to help minification
      var top = popperStyles.top,
          left = popperStyles.left,
          transform = popperStyles[transformProp];
    
      popperStyles.top = '';
      popperStyles.left = '';
      popperStyles[transformProp] = '';
    
      var boundaries = getBoundaries(data.instance.popper, data.instance.reference, options.padding, boundariesElement, data.positionFixed);
    
      // NOTE: DOM access here
      // restores the original style properties after the offsets have been computed
      popperStyles.top = top;
      popperStyles.left = left;
      popperStyles[transformProp] = transform;
    
      options.boundaries = boundaries;
    
      var order = options.priority;
      var popper = data.offsets.popper;
    
      var check = {
        primary: function primary(placement) {
          var value = popper[placement];
          if (popper[placement] < boundaries[placement] && !options.escapeWithReference) {
            value = Math.max(popper[placement], boundaries[placement]);
          }
          return defineProperty({}, placement, value);
        },
        secondary: function secondary(placement) {
          var mainSide = placement === 'right' ? 'left' : 'top';
          var value = popper[mainSide];
          if (popper[placement] > boundaries[placement] && !options.escapeWithReference) {
            value = Math.min(popper[mainSide], boundaries[placement] - (placement === 'right' ? popper.width : popper.height));
          }
          return defineProperty({}, mainSide, value);
        }
      };
    
      order.forEach(function (placement) {
        var side = ['left', 'top'].indexOf(placement) !== -1 ? 'primary' : 'secondary';
        popper = _extends({}, popper, check[side](placement));
      });
    
      data.offsets.popper = popper;
    
      return data;
    }
    
    /**
     * @function
     * @memberof Modifiers
     * @argument {Object} data - The data object generated by `update` method
     * @argument {Object} options - Modifiers configuration and options
     * @returns {Object} The data object, properly modified
     */
    function shift(data) {
      var placement = data.placement;
      var basePlacement = placement.split('-')[0];
      var shiftvariation = placement.split('-')[1];
    
      // if shift shiftvariation is specified, run the modifier
      if (shiftvariation) {
        var _data$offsets = data.offsets,
            reference = _data$offsets.reference,
            popper = _data$offsets.popper;
    
        var isVertical = ['bottom', 'top'].indexOf(basePlacement) !== -1;
        var side = isVertical ? 'left' : 'top';
        var measurement = isVertical ? 'width' : 'height';
    
        var shiftOffsets = {
          start: defineProperty({}, side, reference[side]),
          end: defineProperty({}, side, reference[side] + reference[measurement] - popper[measurement])
        };
    
        data.offsets.popper = _extends({}, popper, shiftOffsets[shiftvariation]);
      }
    
      return data;
    }
    
    /**
     * @function
     * @memberof Modifiers
     * @argument {Object} data - The data object generated by update method
     * @argument {Object} options - Modifiers configuration and options
     * @returns {Object} The data object, properly modified
     */
    function hide(data) {
      if (!isModifierRequired(data.instance.modifiers, 'hide', 'preventOverflow')) {
        return data;
      }
    
      var refRect = data.offsets.reference;
      var bound = find(data.instance.modifiers, function (modifier) {
        return modifier.name === 'preventOverflow';
      }).boundaries;
    
      if (refRect.bottom < bound.top || refRect.left > bound.right || refRect.top > bound.bottom || refRect.right < bound.left) {
        // Avoid unnecessary DOM access if visibility hasn't changed
        if (data.hide === true) {
          return data;
        }
    
        data.hide = true;
        data.attributes['x-out-of-boundaries'] = '';
      } else {
        // Avoid unnecessary DOM access if visibility hasn't changed
        if (data.hide === false) {
          return data;
        }
    
        data.hide = false;
        data.attributes['x-out-of-boundaries'] = false;
      }
    
      return data;
    }
    
    /**
     * @function
     * @memberof Modifiers
     * @argument {Object} data - The data object generated by `update` method
     * @argument {Object} options - Modifiers configuration and options
     * @returns {Object} The data object, properly modified
     */
    function inner(data) {
      var placement = data.placement;
      var basePlacement = placement.split('-')[0];
      var _data$offsets = data.offsets,
          popper = _data$offsets.popper,
          reference = _data$offsets.reference;
    
      var isHoriz = ['left', 'right'].indexOf(basePlacement) !== -1;
    
      var subtractLength = ['top', 'left'].indexOf(basePlacement) === -1;
    
      popper[isHoriz ? 'left' : 'top'] = reference[basePlacement] - (subtractLength ? popper[isHoriz ? 'width' : 'height'] : 0);
    
      data.placement = getOppositePlacement(placement);
      data.offsets.popper = getClientRect(popper);
    
      return data;
    }
    
    /**
     * Modifier function, each modifier can have a function of this type assigned
     * to its `fn` property.<br />
     * These functions will be called on each update, this means that you must
     * make sure they are performant enough to avoid performance bottlenecks.
     *
     * @function ModifierFn
     * @argument {dataObject} data - The data object generated by `update` method
     * @argument {Object} options - Modifiers configuration and options
     * @returns {dataObject} The data object, properly modified
     */
    
    /**
     * Modifiers are plugins used to alter the behavior of your poppers.<br />
     * Popper.js uses a set of 9 modifiers to provide all the basic functionalities
     * needed by the library.
     *
     * Usually you don't want to override the `order`, `fn` and `onLoad` props.
     * All the other properties are configurations that could be tweaked.
     * @namespace modifiers
     */
    var modifiers = {
      /**
       * Modifier used to shift the popper on the start or end of its reference
       * element.<br />
       * It will read the variation of the `placement` property.<br />
       * It can be one either `-end` or `-start`.
       * @memberof modifiers
       * @inner
       */
      shift: {
        /** @prop {number} order=100 - Index used to define the order of execution */
        order: 100,
        /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
        enabled: true,
        /** @prop {ModifierFn} */
        fn: shift
      },
    
      /**
       * The `offset` modifier can shift your popper on both its axis.
       *
       * It accepts the following units:
       * - `px` or unit-less, interpreted as pixels
       * - `%` or `%r`, percentage relative to the length of the reference element
       * - `%p`, percentage relative to the length of the popper element
       * - `vw`, CSS viewport width unit
       * - `vh`, CSS viewport height unit
       *
       * For length is intended the main axis relative to the placement of the popper.<br />
       * This means that if the placement is `top` or `bottom`, the length will be the
       * `width`. In case of `left` or `right`, it will be the `height`.
       *
       * You can provide a single value (as `Number` or `String`), or a pair of values
       * as `String` divided by a comma or one (or more) white spaces.<br />
       * The latter is a deprecated method because it leads to confusion and will be
       * removed in v2.<br />
       * Additionally, it accepts additions and subtractions between different units.
       * Note that multiplications and divisions aren't supported.
       *
       * Valid examples are:
       * ```
       * 10
       * '10%'
       * '10, 10'
       * '10%, 10'
       * '10 + 10%'
       * '10 - 5vh + 3%'
       * '-10px + 5vh, 5px - 6%'
       * ```
       * > **NB**: If you desire to apply offsets to your poppers in a way that may make them overlap
       * > with their reference element, unfortunately, you will have to disable the `flip` modifier.
       * > You can read more on this at this [issue](https://github.com/FezVrasta/popper.js/issues/373).
       *
       * @memberof modifiers
       * @inner
       */
      offset: {
        /** @prop {number} order=200 - Index used to define the order of execution */
        order: 200,
        /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
        enabled: true,
        /** @prop {ModifierFn} */
        fn: offset,
        /** @prop {Number|String} offset=0
         * The offset value as described in the modifier description
         */
        offset: 0
      },
    
      /**
       * Modifier used to prevent the popper from being positioned outside the boundary.
       *
       * A scenario exists where the reference itself is not within the boundaries.<br />
       * We can say it has "escaped the boundaries" — or just "escaped".<br />
       * In this case we need to decide whether the popper should either:
       *
       * - detach from the reference and remain "trapped" in the boundaries, or
       * - if it should ignore the boundary and "escape with its reference"
       *
       * When `escapeWithReference` is set to`true` and reference is completely
       * outside its boundaries, the popper will overflow (or completely leave)
       * the boundaries in order to remain attached to the edge of the reference.
       *
       * @memberof modifiers
       * @inner
       */
      preventOverflow: {
        /** @prop {number} order=300 - Index used to define the order of execution */
        order: 300,
        /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
        enabled: true,
        /** @prop {ModifierFn} */
        fn: preventOverflow,
        /**
         * @prop {Array} [priority=['left','right','top','bottom']]
         * Popper will try to prevent overflow following these priorities by default,
         * then, it could overflow on the left and on top of the `boundariesElement`
         */
        priority: ['left', 'right', 'top', 'bottom'],
        /**
         * @prop {number} padding=5
         * Amount of pixel used to define a minimum distance between the boundaries
         * and the popper. This makes sure the popper always has a little padding
         * between the edges of its container
         */
        padding: 5,
        /**
         * @prop {String|HTMLElement} boundariesElement='scrollParent'
         * Boundaries used by the modifier. Can be `scrollParent`, `window`,
         * `viewport` or any DOM element.
         */
        boundariesElement: 'scrollParent'
      },
    
      /**
       * Modifier used to make sure the reference and its popper stay near each other
       * without leaving any gap between the two. Especially useful when the arrow is
       * enabled and you want to ensure that it points to its reference element.
       * It cares only about the first axis. You can still have poppers with margin
       * between the popper and its reference element.
       * @memberof modifiers
       * @inner
       */
      keepTogether: {
        /** @prop {number} order=400 - Index used to define the order of execution */
        order: 400,
        /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
        enabled: true,
        /** @prop {ModifierFn} */
        fn: keepTogether
      },
    
      /**
       * This modifier is used to move the `arrowElement` of the popper to make
       * sure it is positioned between the reference element and its popper element.
       * It will read the outer size of the `arrowElement` node to detect how many
       * pixels of conjunction are needed.
       *
       * It has no effect if no `arrowElement` is provided.
       * @memberof modifiers
       * @inner
       */
      arrow: {
        /** @prop {number} order=500 - Index used to define the order of execution */
        order: 500,
        /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
        enabled: true,
        /** @prop {ModifierFn} */
        fn: arrow,
        /** @prop {String|HTMLElement} element='[x-arrow]' - Selector or node used as arrow */
        element: '[x-arrow]'
      },
    
      /**
       * Modifier used to flip the popper's placement when it starts to overlap its
       * reference element.
       *
       * Requires the `preventOverflow` modifier before it in order to work.
       *
       * **NOTE:** this modifier will interrupt the current update cycle and will
       * restart it if it detects the need to flip the placement.
       * @memberof modifiers
       * @inner
       */
      flip: {
        /** @prop {number} order=600 - Index used to define the order of execution */
        order: 600,
        /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
        enabled: true,
        /** @prop {ModifierFn} */
        fn: flip,
        /**
         * @prop {String|Array} behavior='flip'
         * The behavior used to change the popper's placement. It can be one of
         * `flip`, `clockwise`, `counterclockwise` or an array with a list of valid
         * placements (with optional variations)
         */
        behavior: 'flip',
        /**
         * @prop {number} padding=5
         * The popper will flip if it hits the edges of the `boundariesElement`
         */
        padding: 5,
        /**
         * @prop {String|HTMLElement} boundariesElement='viewport'
         * The element which will define the boundaries of the popper position.
         * The popper will never be placed outside of the defined boundaries
         * (except if `keepTogether` is enabled)
         */
        boundariesElement: 'viewport',
        /**
         * @prop {Boolean} flipVariations=false
         * The popper will switch placement variation between `-start` and `-end` when
         * the reference element overlaps its boundaries.
         *
         * The original placement should have a set variation.
         */
        flipVariations: false,
        /**
         * @prop {Boolean} flipVariationsByContent=false
         * The popper will switch placement variation between `-start` and `-end` when
         * the popper element overlaps its reference boundaries.
         *
         * The original placement should have a set variation.
         */
        flipVariationsByContent: false
      },
    
      /**
       * Modifier used to make the popper flow toward the inner of the reference element.
       * By default, when this modifier is disabled, the popper will be placed outside
       * the reference element.
       * @memberof modifiers
       * @inner
       */
      inner: {
        /** @prop {number} order=700 - Index used to define the order of execution */
        order: 700,
        /** @prop {Boolean} enabled=false - Whether the modifier is enabled or not */
        enabled: false,
        /** @prop {ModifierFn} */
        fn: inner
      },
    
      /**
       * Modifier used to hide the popper when its reference element is outside of the
       * popper boundaries. It will set a `x-out-of-boundaries` attribute which can
       * be used to hide with a CSS selector the popper when its reference is
       * out of boundaries.
       *
       * Requires the `preventOverflow` modifier before it in order to work.
       * @memberof modifiers
       * @inner
       */
      hide: {
        /** @prop {number} order=800 - Index used to define the order of execution */
        order: 800,
        /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
        enabled: true,
        /** @prop {ModifierFn} */
        fn: hide
      },
    
      /**
       * Computes the style that will be applied to the popper element to gets
       * properly positioned.
       *
       * Note that this modifier will not touch the DOM, it just prepares the styles
       * so that `applyStyle` modifier can apply it. This separation is useful
       * in case you need to replace `applyStyle` with a custom implementation.
       *
       * This modifier has `850` as `order` value to maintain backward compatibility
       * with previous versions of Popper.js. Expect the modifiers ordering method
       * to change in future major versions of the library.
       *
       * @memberof modifiers
       * @inner
       */
      computeStyle: {
        /** @prop {number} order=850 - Index used to define the order of execution */
        order: 850,
        /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
        enabled: true,
        /** @prop {ModifierFn} */
        fn: computeStyle,
        /**
         * @prop {Boolean} gpuAcceleration=true
         * If true, it uses the CSS 3D transformation to position the popper.
         * Otherwise, it will use the `top` and `left` properties
         */
        gpuAcceleration: true,
        /**
         * @prop {string} [x='bottom']
         * Where to anchor the X axis (`bottom` or `top`). AKA X offset origin.
         * Change this if your popper should grow in a direction different from `bottom`
         */
        x: 'bottom',
        /**
         * @prop {string} [x='left']
         * Where to anchor the Y axis (`left` or `right`). AKA Y offset origin.
         * Change this if your popper should grow in a direction different from `right`
         */
        y: 'right'
      },
    
      /**
       * Applies the computed styles to the popper element.
       *
       * All the DOM manipulations are limited to this modifier. This is useful in case
       * you want to integrate Popper.js inside a framework or view library and you
       * want to delegate all the DOM manipulations to it.
       *
       * Note that if you disable this modifier, you must make sure the popper element
       * has its position set to `absolute` before Popper.js can do its work!
       *
       * Just disable this modifier and define your own to achieve the desired effect.
       *
       * @memberof modifiers
       * @inner
       */
      applyStyle: {
        /** @prop {number} order=900 - Index used to define the order of execution */
        order: 900,
        /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
        enabled: true,
        /** @prop {ModifierFn} */
        fn: applyStyle,
        /** @prop {Function} */
        onLoad: applyStyleOnLoad,
        /**
         * @deprecated since version 1.10.0, the property moved to `computeStyle` modifier
         * @prop {Boolean} gpuAcceleration=true
         * If true, it uses the CSS 3D transformation to position the popper.
         * Otherwise, it will use the `top` and `left` properties
         */
        gpuAcceleration: undefined
      }
    };
    
    /**
     * The `dataObject` is an object containing all the information used by Popper.js.
     * This object is passed to modifiers and to the `onCreate` and `onUpdate` callbacks.
     * @name dataObject
     * @property {Object} data.instance The Popper.js instance
     * @property {String} data.placement Placement applied to popper
     * @property {String} data.originalPlacement Placement originally defined on init
     * @property {Boolean} data.flipped True if popper has been flipped by flip modifier
     * @property {Boolean} data.hide True if the reference element is out of boundaries, useful to know when to hide the popper
     * @property {HTMLElement} data.arrowElement Node used as arrow by arrow modifier
     * @property {Object} data.styles Any CSS property defined here will be applied to the popper. It expects the JavaScript nomenclature (eg. `marginBottom`)
     * @property {Object} data.arrowStyles Any CSS property defined here will be applied to the popper arrow. It expects the JavaScript nomenclature (eg. `marginBottom`)
     * @property {Object} data.boundaries Offsets of the popper boundaries
     * @property {Object} data.offsets The measurements of popper, reference and arrow elements
     * @property {Object} data.offsets.popper `top`, `left`, `width`, `height` values
     * @property {Object} data.offsets.reference `top`, `left`, `width`, `height` values
     * @property {Object} data.offsets.arrow] `top` and `left` offsets, only one of them will be different from 0
     */
    
    /**
     * Default options provided to Popper.js constructor.<br />
     * These can be overridden using the `options` argument of Popper.js.<br />
     * To override an option, simply pass an object with the same
     * structure of the `options` object, as the 3rd argument. For example:
     * ```
     * new Popper(ref, pop, {
     *   modifiers: {
     *     preventOverflow: { enabled: false }
     *   }
     * })
     * ```
     * @type {Object}
     * @static
     * @memberof Popper
     */
    var Defaults = {
      /**
       * Popper's placement.
       * @prop {Popper.placements} placement='bottom'
       */
      placement: 'bottom',
    
      /**
       * Set this to true if you want popper to position it self in 'fixed' mode
       * @prop {Boolean} positionFixed=false
       */
      positionFixed: false,
    
      /**
       * Whether events (resize, scroll) are initially enabled.
       * @prop {Boolean} eventsEnabled=true
       */
      eventsEnabled: true,
    
      /**
       * Set to true if you want to automatically remove the popper when
       * you call the `destroy` method.
       * @prop {Boolean} removeOnDestroy=false
       */
      removeOnDestroy: false,
    
      /**
       * Callback called when the popper is created.<br />
       * By default, it is set to no-op.<br />
       * Access Popper.js instance with `data.instance`.
       * @prop {onCreate}
       */
      onCreate: function onCreate() {},
    
      /**
       * Callback called when the popper is updated. This callback is not called
       * on the initialization/creation of the popper, but only on subsequent
       * updates.<br />
       * By default, it is set to no-op.<br />
       * Access Popper.js instance with `data.instance`.
       * @prop {onUpdate}
       */
      onUpdate: function onUpdate() {},
    
      /**
       * List of modifiers used to modify the offsets before they are applied to the popper.
       * They provide most of the functionalities of Popper.js.
       * @prop {modifiers}
       */
      modifiers: modifiers
    };
    
    /**
     * @callback onCreate
     * @param {dataObject} data
     */
    
    /**
     * @callback onUpdate
     * @param {dataObject} data
     */
    
    // Utils
    // Methods
    var Popper = function () {
      /**
       * Creates a new Popper.js instance.
       * @class Popper
       * @param {Element|referenceObject} reference - The reference element used to position the popper
       * @param {Element} popper - The HTML / XML element used as the popper
       * @param {Object} options - Your custom options to override the ones defined in [Defaults](#defaults)
       * @return {Object} instance - The generated Popper.js instance
       */
      function Popper(reference, popper) {
        var _this = this;
    
        var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
        classCallCheck(this, Popper);
    
        this.scheduleUpdate = function () {
          return requestAnimationFrame(_this.update);
        };
    
        // make update() debounced, so that it only runs at most once-per-tick
        this.update = debounce(this.update.bind(this));
    
        // with {} we create a new object with the options inside it
        this.options = _extends({}, Popper.Defaults, options);
    
        // init state
        this.state = {
          isDestroyed: false,
          isCreated: false,
          scrollParents: []
        };
    
        // get reference and popper elements (allow jQuery wrappers)
        this.reference = reference && reference.jquery ? reference[0] : reference;
        this.popper = popper && popper.jquery ? popper[0] : popper;
    
        // Deep merge modifiers options
        this.options.modifiers = {};
        Object.keys(_extends({}, Popper.Defaults.modifiers, options.modifiers)).forEach(function (name) {
          _this.options.modifiers[name] = _extends({}, Popper.Defaults.modifiers[name] || {}, options.modifiers ? options.modifiers[name] : {});
        });
    
        // Refactoring modifiers' list (Object => Array)
        this.modifiers = Object.keys(this.options.modifiers).map(function (name) {
          return _extends({
            name: name
          }, _this.options.modifiers[name]);
        })
        // sort the modifiers by order
        .sort(function (a, b) {
          return a.order - b.order;
        });
    
        // modifiers have the ability to execute arbitrary code when Popper.js get inited
        // such code is executed in the same order of its modifier
        // they could add new properties to their options configuration
        // BE AWARE: don't add options to `options.modifiers.name` but to `modifierOptions`!
        this.modifiers.forEach(function (modifierOptions) {
          if (modifierOptions.enabled && isFunction(modifierOptions.onLoad)) {
            modifierOptions.onLoad(_this.reference, _this.popper, _this.options, modifierOptions, _this.state);
          }
        });
    
        // fire the first update to position the popper in the right place
        this.update();
    
        var eventsEnabled = this.options.eventsEnabled;
        if (eventsEnabled) {
          // setup event listeners, they will take care of update the position in specific situations
          this.enableEventListeners();
        }
    
        this.state.eventsEnabled = eventsEnabled;
      }
    
      // We can't use class properties because they don't get listed in the
      // class prototype and break stuff like Sinon stubs
    
    
      createClass(Popper, [{
        key: 'update',
        value: function update$$1() {
          return update.call(this);
        }
      }, {
        key: 'destroy',
        value: function destroy$$1() {
          return destroy.call(this);
        }
      }, {
        key: 'enableEventListeners',
        value: function enableEventListeners$$1() {
          return enableEventListeners.call(this);
        }
      }, {
        key: 'disableEventListeners',
        value: function disableEventListeners$$1() {
          return disableEventListeners.call(this);
        }
    
        /**
         * Schedules an update. It will run on the next UI update available.
         * @method scheduleUpdate
         * @memberof Popper
         */
    
    
        /**
         * Collection of utilities useful when writing custom modifiers.
         * Starting from version 1.7, this method is available only if you
         * include `popper-utils.js` before `popper.js`.
         *
         * **DEPRECATION**: This way to access PopperUtils is deprecated
         * and will be removed in v2! Use the PopperUtils module directly instead.
         * Due to the high instability of the methods contained in Utils, we can't
         * guarantee them to follow semver. Use them at your own risk!
         * @static
         * @private
         * @type {Object}
         * @deprecated since version 1.8
         * @member Utils
         * @memberof Popper
         */
    
      }]);
      return Popper;
    }();
    
    /**
     * The `referenceObject` is an object that provides an interface compatible with Popper.js
     * and lets you use it as replacement of a real DOM node.<br />
     * You can use this method to position a popper relatively to a set of coordinates
     * in case you don't have a DOM node to use as reference.
     *
     * ```
     * new Popper(referenceObject, popperNode);
     * ```
     *
     * NB: This feature isn't supported in Internet Explorer 10.
     * @name referenceObject
     * @property {Function} data.getBoundingClientRect
     * A function that returns a set of coordinates compatible with the native `getBoundingClientRect` method.
     * @property {number} data.clientWidth
     * An ES6 getter that will return the width of the virtual reference element.
     * @property {number} data.clientHeight
     * An ES6 getter that will return the height of the virtual reference element.
     */
    
    
    Popper.Utils = (typeof window !== 'undefined' ? window : global).PopperUtils;
    Popper.placements = placements;
    Popper.Defaults = Defaults;
    
    /* harmony default export */ __webpack_exports__["default"] = (Popper);
    //# sourceMappingURL=popper.js.map
    
    /* WEBPACK VAR INJECTION */}.call(this, __webpack_require__(/*! ./../../../webpack/buildin/global.js */ "./node_modules/webpack/buildin/global.js")))
    
    /***/ }),
    
    /***/ "./node_modules/process/browser.js":
    /*!*****************************************!*\
      !*** ./node_modules/process/browser.js ***!
      \*****************************************/
    /*! no static exports found */
    /***/ (function(module, exports) {
    
    // shim for using process in browser
    var process = module.exports = {};
    
    // cached from whatever global is present so that test runners that stub it
    // don't break things.  But we need to wrap it in a try catch in case it is
    // wrapped in strict mode code which doesn't define any globals.  It's inside a
    // function because try/catches deoptimize in certain engines.
    
    var cachedSetTimeout;
    var cachedClearTimeout;
    
    function defaultSetTimout() {
        throw new Error('setTimeout has not been defined');
    }
    function defaultClearTimeout () {
        throw new Error('clearTimeout has not been defined');
    }
    (function () {
        try {
            if (typeof setTimeout === 'function') {
                cachedSetTimeout = setTimeout;
            } else {
                cachedSetTimeout = defaultSetTimout;
            }
        } catch (e) {
            cachedSetTimeout = defaultSetTimout;
        }
        try {
            if (typeof clearTimeout === 'function') {
                cachedClearTimeout = clearTimeout;
            } else {
                cachedClearTimeout = defaultClearTimeout;
            }
        } catch (e) {
            cachedClearTimeout = defaultClearTimeout;
        }
    } ())
    function runTimeout(fun) {
        if (cachedSetTimeout === setTimeout) {
            //normal enviroments in sane situations
            return setTimeout(fun, 0);
        }
        // if setTimeout wasn't available but was latter defined
        if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {
            cachedSetTimeout = setTimeout;
            return setTimeout(fun, 0);
        }
        try {
            // when when somebody has screwed with setTimeout but no I.E. maddness
            return cachedSetTimeout(fun, 0);
        } catch(e){
            try {
                // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
                return cachedSetTimeout.call(null, fun, 0);
            } catch(e){
                // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error
                return cachedSetTimeout.call(this, fun, 0);
            }
        }
    
    
    }
    function runClearTimeout(marker) {
        if (cachedClearTimeout === clearTimeout) {
            //normal enviroments in sane situations
            return clearTimeout(marker);
        }
        // if clearTimeout wasn't available but was latter defined
        if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {
            cachedClearTimeout = clearTimeout;
            return clearTimeout(marker);
        }
        try {
            // when when somebody has screwed with setTimeout but no I.E. maddness
            return cachedClearTimeout(marker);
        } catch (e){
            try {
                // When we are in I.E. but the script has been evaled so I.E. doesn't  trust the global object when called normally
                return cachedClearTimeout.call(null, marker);
            } catch (e){
                // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.
                // Some versions of I.E. have different rules for clearTimeout vs setTimeout
                return cachedClearTimeout.call(this, marker);
            }
        }
    
    
    
    }
    var queue = [];
    var draining = false;
    var currentQueue;
    var queueIndex = -1;
    
    function cleanUpNextTick() {
        if (!draining || !currentQueue) {
            return;
        }
        draining = false;
        if (currentQueue.length) {
            queue = currentQueue.concat(queue);
        } else {
            queueIndex = -1;
        }
        if (queue.length) {
            drainQueue();
        }
    }
    
    function drainQueue() {
        if (draining) {
            return;
        }
        var timeout = runTimeout(cleanUpNextTick);
        draining = true;
    
        var len = queue.length;
        while(len) {
            currentQueue = queue;
            queue = [];
            while (++queueIndex < len) {
                if (currentQueue) {
                    currentQueue[queueIndex].run();
                }
            }
            queueIndex = -1;
            len = queue.length;
        }
        currentQueue = null;
        draining = false;
        runClearTimeout(timeout);
    }
    
    process.nextTick = function (fun) {
        var args = new Array(arguments.length - 1);
        if (arguments.length > 1) {
            for (var i = 1; i < arguments.length; i++) {
                args[i - 1] = arguments[i];
            }
        }
        queue.push(new Item(fun, args));
        if (queue.length === 1 && !draining) {
            runTimeout(drainQueue);
        }
    };
    
    // v8 likes predictible objects
    function Item(fun, array) {
        this.fun = fun;
        this.array = array;
    }
    Item.prototype.run = function () {
        this.fun.apply(null, this.array);
    };
    process.title = 'browser';
    process.browser = true;
    process.env = {};
    process.argv = [];
    process.version = ''; // empty string to avoid regexp issues
    process.versions = {};
    
    function noop() {}
    
    process.on = noop;
    process.addListener = noop;
    process.once = noop;
    process.off = noop;
    process.removeListener = noop;
    process.removeAllListeners = noop;
    process.emit = noop;
    process.prependListener = noop;
    process.prependOnceListener = noop;
    
    process.listeners = function (name) { return [] }
    
    process.binding = function (name) {
        throw new Error('process.binding is not supported');
    };
    
    process.cwd = function () { return '/' };
    process.chdir = function (dir) {
        throw new Error('process.chdir is not supported');
    };
    process.umask = function() { return 0; };
    
    
    /***/ }),
    
    /***/ "./node_modules/prop-types/checkPropTypes.js":
    /*!***************************************************!*\
      !*** ./node_modules/prop-types/checkPropTypes.js ***!
      \***************************************************/
    /*! no static exports found */
    /***/ (function(module, exports, __webpack_require__) {
    
    "use strict";
    /**
     * Copyright (c) 2013-present, Facebook, Inc.
     *
     * This source code is licensed under the MIT license found in the
     * LICENSE file in the root directory of this source tree.
     */
    
    
    
    var printWarning = function() {};
    
    if (true) {
      var ReactPropTypesSecret = __webpack_require__(/*! ./lib/ReactPropTypesSecret */ "./node_modules/prop-types/lib/ReactPropTypesSecret.js");
      var loggedTypeFailures = {};
      var has = Function.call.bind(Object.prototype.hasOwnProperty);
    
      printWarning = function(text) {
        var message = 'Warning: ' + text;
        if (typeof console !== 'undefined') {
          console.error(message);
        }
        try {
          // --- Welcome to debugging React ---
          // This error was thrown as a convenience so that you can use this stack
          // to find the callsite that caused this warning to fire.
          throw new Error(message);
        } catch (x) {}
      };
    }
    
    /**
     * Assert that the values match with the type specs.
     * Error messages are memorized and will only be shown once.
     *
     * @param {object} typeSpecs Map of name to a ReactPropType
     * @param {object} values Runtime values that need to be type-checked
     * @param {string} location e.g. "prop", "context", "child context"
     * @param {string} componentName Name of the component for error messages.
     * @param {?Function} getStack Returns the component stack.
     * @private
     */
    function checkPropTypes(typeSpecs, values, location, componentName, getStack) {
      if (true) {
        for (var typeSpecName in typeSpecs) {
          if (has(typeSpecs, typeSpecName)) {
            var error;
            // Prop type validation may throw. In case they do, we don't want to
            // fail the render phase where it didn't fail before. So we log it.
            // After these have been cleaned up, we'll let them throw.
            try {
              // This is intentionally an invariant that gets caught. It's the same
              // behavior as without this statement except with a better message.
              if (typeof typeSpecs[typeSpecName] !== 'function') {
                var err = Error(
                  (componentName || 'React class') + ': ' + location + ' type `' + typeSpecName + '` is invalid; ' +
                  'it must be a function, usually from the `prop-types` package, but received `' + typeof typeSpecs[typeSpecName] + '`.'
                );
                err.name = 'Invariant Violation';
                throw err;
              }
              error = typeSpecs[typeSpecName](values, typeSpecName, componentName, location, null, ReactPropTypesSecret);
            } catch (ex) {
              error = ex;
            }
            if (error && !(error instanceof Error)) {
              printWarning(
                (componentName || 'React class') + ': type specification of ' +
                location + ' `' + typeSpecName + '` is invalid; the type checker ' +
                'function must return `null` or an `Error` but returned a ' + typeof error + '. ' +
                'You may have forgotten to pass an argument to the type checker ' +
                'creator (arrayOf, instanceOf, objectOf, oneOf, oneOfType, and ' +
                'shape all require an argument).'
              );
            }
            if (error instanceof Error && !(error.message in loggedTypeFailures)) {
              // Only monitor this failure once because there tends to be a lot of the
              // same error.
              loggedTypeFailures[error.message] = true;
    
              var stack = getStack ? getStack() : '';
    
              printWarning(
                'Failed ' + location + ' type: ' + error.message + (stack != null ? stack : '')
              );
            }
          }
        }
      }
    }
    
    /**
     * Resets warning cache when testing.
     *
     * @private
     */
    checkPropTypes.resetWarningCache = function() {
      if (true) {
        loggedTypeFailures = {};
      }
    }
    
    module.exports = checkPropTypes;
    
    
    /***/ }),
    
    /***/ "./node_modules/prop-types/lib/ReactPropTypesSecret.js":
    /*!*************************************************************!*\
      !*** ./node_modules/prop-types/lib/ReactPropTypesSecret.js ***!
      \*************************************************************/
    /*! no static exports found */
    /***/ (function(module, exports, __webpack_require__) {
    
    "use strict";
    /**
     * Copyright (c) 2013-present, Facebook, Inc.
     *
     * This source code is licensed under the MIT license found in the
     * LICENSE file in the root directory of this source tree.
     */
    
    
    
    var ReactPropTypesSecret = 'SECRET_DO_NOT_PASS_THIS_OR_YOU_WILL_BE_FIRED';
    
    module.exports = ReactPropTypesSecret;
    
    
    /***/ }),
    
    /***/ "./node_modules/react-dom/cjs/react-dom.development.js":
    /*!*************************************************************!*\
      !*** ./node_modules/react-dom/cjs/react-dom.development.js ***!
      \*************************************************************/
    /*! no static exports found */
    /***/ (function(module, exports, __webpack_require__) {
    
    "use strict";
    /** @license React v16.10.1
     * react-dom.development.js
     *
     * Copyright (c) Facebook, Inc. and its affiliates.
     *
     * This source code is licensed under the MIT license found in the
     * LICENSE file in the root directory of this source tree.
     */
    
    
    
    
    
    if (true) {
      (function() {
    'use strict';
    
    var React = __webpack_require__(/*! react */ "./node_modules/react/index.js");
    var _assign = __webpack_require__(/*! object-assign */ "./node_modules/object-assign/index.js");
    var Scheduler = __webpack_require__(/*! scheduler */ "./node_modules/scheduler/index.js");
    var checkPropTypes = __webpack_require__(/*! prop-types/checkPropTypes */ "./node_modules/prop-types/checkPropTypes.js");
    var tracing = __webpack_require__(/*! scheduler/tracing */ "./node_modules/scheduler/tracing.js");
    
    // Do not require this module directly! Use normal `invariant` calls with
    // template literal strings. The messages will be converted to ReactError during
    // build, and in production they will be minified.
    
    // Do not require this module directly! Use normal `invariant` calls with
    // template literal strings. The messages will be converted to ReactError during
    // build, and in production they will be minified.
    function ReactError(error) {
      error.name = 'Invariant Violation';
      return error;
    }
    
    /**
     * Use invariant() to assert state which your program assumes to be true.
     *
     * Provide sprintf-style format (only %s is supported) and arguments
     * to provide information about what broke and what you were
     * expecting.
     *
     * The invariant message will be stripped in production, but the invariant
     * will remain to ensure logic does not differ in production.
     */
    
    (function () {
      if (!React) {
        {
          throw ReactError(Error("ReactDOM was loaded before React. Make sure you load the React package before loading ReactDOM."));
        }
      }
    })();
    
    /**
     * Injectable ordering of event plugins.
     */
    var eventPluginOrder = null;
    /**
     * Injectable mapping from names to event plugin modules.
     */
    
    var namesToPlugins = {};
    /**
     * Recomputes the plugin list using the injected plugins and plugin ordering.
     *
     * @private
     */
    
    function recomputePluginOrdering() {
      if (!eventPluginOrder) {
        // Wait until an `eventPluginOrder` is injected.
        return;
      }
    
      for (var pluginName in namesToPlugins) {
        var pluginModule = namesToPlugins[pluginName];
        var pluginIndex = eventPluginOrder.indexOf(pluginName);
    
        (function () {
          if (!(pluginIndex > -1)) {
            {
              throw ReactError(Error("EventPluginRegistry: Cannot inject event plugins that do not exist in the plugin ordering, `" + pluginName + "`."));
            }
          }
        })();
    
        if (plugins[pluginIndex]) {
          continue;
        }
    
        (function () {
          if (!pluginModule.extractEvents) {
            {
              throw ReactError(Error("EventPluginRegistry: Event plugins must implement an `extractEvents` method, but `" + pluginName + "` does not."));
            }
          }
        })();
    
        plugins[pluginIndex] = pluginModule;
        var publishedEvents = pluginModule.eventTypes;
    
        for (var eventName in publishedEvents) {
          (function () {
            if (!publishEventForPlugin(publishedEvents[eventName], pluginModule, eventName)) {
              {
                throw ReactError(Error("EventPluginRegistry: Failed to publish event `" + eventName + "` for plugin `" + pluginName + "`."));
              }
            }
          })();
        }
      }
    }
    /**
     * Publishes an event so that it can be dispatched by the supplied plugin.
     *
     * @param {object} dispatchConfig Dispatch configuration for the event.
     * @param {object} PluginModule Plugin publishing the event.
     * @return {boolean} True if the event was successfully published.
     * @private
     */
    
    
    function publishEventForPlugin(dispatchConfig, pluginModule, eventName) {
      (function () {
        if (!!eventNameDispatchConfigs.hasOwnProperty(eventName)) {
          {
            throw ReactError(Error("EventPluginHub: More than one plugin attempted to publish the same event name, `" + eventName + "`."));
          }
        }
      })();
    
      eventNameDispatchConfigs[eventName] = dispatchConfig;
      var phasedRegistrationNames = dispatchConfig.phasedRegistrationNames;
    
      if (phasedRegistrationNames) {
        for (var phaseName in phasedRegistrationNames) {
          if (phasedRegistrationNames.hasOwnProperty(phaseName)) {
            var phasedRegistrationName = phasedRegistrationNames[phaseName];
            publishRegistrationName(phasedRegistrationName, pluginModule, eventName);
          }
        }
    
        return true;
      } else if (dispatchConfig.registrationName) {
        publishRegistrationName(dispatchConfig.registrationName, pluginModule, eventName);
        return true;
      }
    
      return false;
    }
    /**
     * Publishes a registration name that is used to identify dispatched events.
     *
     * @param {string} registrationName Registration name to add.
     * @param {object} PluginModule Plugin publishing the event.
     * @private
     */
    
    
    function publishRegistrationName(registrationName, pluginModule, eventName) {
      (function () {
        if (!!registrationNameModules[registrationName]) {
          {
            throw ReactError(Error("EventPluginHub: More than one plugin attempted to publish the same registration name, `" + registrationName + "`."));
          }
        }
      })();
    
      registrationNameModules[registrationName] = pluginModule;
      registrationNameDependencies[registrationName] = pluginModule.eventTypes[eventName].dependencies;
    
      {
        var lowerCasedName = registrationName.toLowerCase();
        possibleRegistrationNames[lowerCasedName] = registrationName;
    
        if (registrationName === 'onDoubleClick') {
          possibleRegistrationNames.ondblclick = registrationName;
        }
      }
    }
    /**
     * Registers plugins so that they can extract and dispatch events.
     *
     * @see {EventPluginHub}
     */
    
    /**
     * Ordered list of injected plugins.
     */
    
    
    var plugins = [];
    /**
     * Mapping from event name to dispatch config
     */
    
    var eventNameDispatchConfigs = {};
    /**
     * Mapping from registration name to plugin module
     */
    
    var registrationNameModules = {};
    /**
     * Mapping from registration name to event name
     */
    
    var registrationNameDependencies = {};
    /**
     * Mapping from lowercase registration names to the properly cased version,
     * used to warn in the case of missing event handlers. Available
     * only in true.
     * @type {Object}
     */
    
    var possibleRegistrationNames = {}; // Trust the developer to only use possibleRegistrationNames in true
    
    /**
     * Injects an ordering of plugins (by plugin name). This allows the ordering
     * to be decoupled from injection of the actual plugins so that ordering is
     * always deterministic regardless of packaging, on-the-fly injection, etc.
     *
     * @param {array} InjectedEventPluginOrder
     * @internal
     * @see {EventPluginHub.injection.injectEventPluginOrder}
     */
    
    function injectEventPluginOrder(injectedEventPluginOrder) {
      (function () {
        if (!!eventPluginOrder) {
          {
            throw ReactError(Error("EventPluginRegistry: Cannot inject event plugin ordering more than once. You are likely trying to load more than one copy of React."));
          }
        }
      })(); // Clone the ordering so it cannot be dynamically mutated.
    
    
      eventPluginOrder = Array.prototype.slice.call(injectedEventPluginOrder);
      recomputePluginOrdering();
    }
    /**
     * Injects plugins to be used by `EventPluginHub`. The plugin names must be
     * in the ordering injected by `injectEventPluginOrder`.
     *
     * Plugins can be injected as part of page initialization or on-the-fly.
     *
     * @param {object} injectedNamesToPlugins Map from names to plugin modules.
     * @internal
     * @see {EventPluginHub.injection.injectEventPluginsByName}
     */
    
    function injectEventPluginsByName(injectedNamesToPlugins) {
      var isOrderingDirty = false;
    
      for (var pluginName in injectedNamesToPlugins) {
        if (!injectedNamesToPlugins.hasOwnProperty(pluginName)) {
          continue;
        }
    
        var pluginModule = injectedNamesToPlugins[pluginName];
    
        if (!namesToPlugins.hasOwnProperty(pluginName) || namesToPlugins[pluginName] !== pluginModule) {
          (function () {
            if (!!namesToPlugins[pluginName]) {
              {
                throw ReactError(Error("EventPluginRegistry: Cannot inject two different event plugins using the same name, `" + pluginName + "`."));
              }
            }
          })();
    
          namesToPlugins[pluginName] = pluginModule;
          isOrderingDirty = true;
        }
      }
    
      if (isOrderingDirty) {
        recomputePluginOrdering();
      }
    }
    
    var invokeGuardedCallbackImpl = function (name, func, context, a, b, c, d, e, f) {
      var funcArgs = Array.prototype.slice.call(arguments, 3);
    
      try {
        func.apply(context, funcArgs);
      } catch (error) {
        this.onError(error);
      }
    };
    
    {
      // In DEV mode, we swap out invokeGuardedCallback for a special version
      // that plays more nicely with the browser's DevTools. The idea is to preserve
      // "Pause on exceptions" behavior. Because React wraps all user-provided
      // functions in invokeGuardedCallback, and the production version of
      // invokeGuardedCallback uses a try-catch, all user exceptions are treated
      // like caught exceptions, and the DevTools won't pause unless the developer
      // takes the extra step of enabling pause on caught exceptions. This is
      // unintuitive, though, because even though React has caught the error, from
      // the developer's perspective, the error is uncaught.
      //
      // To preserve the expected "Pause on exceptions" behavior, we don't use a
      // try-catch in DEV. Instead, we synchronously dispatch a fake event to a fake
      // DOM node, and call the user-provided callback from inside an event handler
      // for that fake event. If the callback throws, the error is "captured" using
      // a global event handler. But because the error happens in a different
      // event loop context, it does not interrupt the normal program flow.
      // Effectively, this gives us try-catch behavior without actually using
      // try-catch. Neat!
      // Check that the browser supports the APIs we need to implement our special
      // DEV version of invokeGuardedCallback
      if (typeof window !== 'undefined' && typeof window.dispatchEvent === 'function' && typeof document !== 'undefined' && typeof document.createEvent === 'function') {
        var fakeNode = document.createElement('react');
    
        var invokeGuardedCallbackDev = function (name, func, context, a, b, c, d, e, f) {
          // If document doesn't exist we know for sure we will crash in this method
          // when we call document.createEvent(). However this can cause confusing
          // errors: https://github.com/facebookincubator/create-react-app/issues/3482
          // So we preemptively throw with a better message instead.
          (function () {
            if (!(typeof document !== 'undefined')) {
              {
                throw ReactError(Error("The `document` global was defined when React was initialized, but is not defined anymore. This can happen in a test environment if a component schedules an update from an asynchronous callback, but the test has already finished running. To solve this, you can either unmount the component at the end of your test (and ensure that any asynchronous operations get canceled in `componentWillUnmount`), or you can change the test itself to be asynchronous."));
              }
            }
          })();
    
          var evt = document.createEvent('Event'); // Keeps track of whether the user-provided callback threw an error. We
          // set this to true at the beginning, then set it to false right after
          // calling the function. If the function errors, `didError` will never be
          // set to false. This strategy works even if the browser is flaky and
          // fails to call our global error handler, because it doesn't rely on
          // the error event at all.
    
          var didError = true; // Keeps track of the value of window.event so that we can reset it
          // during the callback to let user code access window.event in the
          // browsers that support it.
    
          var windowEvent = window.event; // Keeps track of the descriptor of window.event to restore it after event
          // dispatching: https://github.com/facebook/react/issues/13688
    
          var windowEventDescriptor = Object.getOwnPropertyDescriptor(window, 'event'); // Create an event handler for our fake event. We will synchronously
          // dispatch our fake event using `dispatchEvent`. Inside the handler, we
          // call the user-provided callback.
    
          var funcArgs = Array.prototype.slice.call(arguments, 3);
    
          function callCallback() {
            // We immediately remove the callback from event listeners so that
            // nested `invokeGuardedCallback` calls do not clash. Otherwise, a
            // nested call would trigger the fake event handlers of any call higher
            // in the stack.
            fakeNode.removeEventListener(evtType, callCallback, false); // We check for window.hasOwnProperty('event') to prevent the
            // window.event assignment in both IE <= 10 as they throw an error
            // "Member not found" in strict mode, and in Firefox which does not
            // support window.event.
    
            if (typeof window.event !== 'undefined' && window.hasOwnProperty('event')) {
              window.event = windowEvent;
            }
    
            func.apply(context, funcArgs);
            didError = false;
          } // Create a global error event handler. We use this to capture the value
          // that was thrown. It's possible that this error handler will fire more
          // than once; for example, if non-React code also calls `dispatchEvent`
          // and a handler for that event throws. We should be resilient to most of
          // those cases. Even if our error event handler fires more than once, the
          // last error event is always used. If the callback actually does error,
          // we know that the last error event is the correct one, because it's not
          // possible for anything else to have happened in between our callback
          // erroring and the code that follows the `dispatchEvent` call below. If
          // the callback doesn't error, but the error event was fired, we know to
          // ignore it because `didError` will be false, as described above.
    
    
          var error; // Use this to track whether the error event is ever called.
    
          var didSetError = false;
          var isCrossOriginError = false;
    
          function handleWindowError(event) {
            error = event.error;
            didSetError = true;
    
            if (error === null && event.colno === 0 && event.lineno === 0) {
              isCrossOriginError = true;
            }
    
            if (event.defaultPrevented) {
              // Some other error handler has prevented default.
              // Browsers silence the error report if this happens.
              // We'll remember this to later decide whether to log it or not.
              if (error != null && typeof error === 'object') {
                try {
                  error._suppressLogging = true;
                } catch (inner) {// Ignore.
                }
              }
            }
          } // Create a fake event type.
    
    
          var evtType = "react-" + (name ? name : 'invokeguardedcallback'); // Attach our event handlers
    
          window.addEventListener('error', handleWindowError);
          fakeNode.addEventListener(evtType, callCallback, false); // Synchronously dispatch our fake event. If the user-provided function
          // errors, it will trigger our global error handler.
    
          evt.initEvent(evtType, false, false);
          fakeNode.dispatchEvent(evt);
    
          if (windowEventDescriptor) {
            Object.defineProperty(window, 'event', windowEventDescriptor);
          }
    
          if (didError) {
            if (!didSetError) {
              // The callback errored, but the error event never fired.
              error = new Error('An error was thrown inside one of your components, but React ' + "doesn't know what it was. This is likely due to browser " + 'flakiness. React does its best to preserve the "Pause on ' + 'exceptions" behavior of the DevTools, which requires some ' + "DEV-mode only tricks. It's possible that these don't work in " + 'your browser. Try triggering the error in production mode, ' + 'or switching to a modern browser. If you suspect that this is ' + 'actually an issue with React, please file an issue.');
            } else if (isCrossOriginError) {
              error = new Error("A cross-origin error was thrown. React doesn't have access to " + 'the actual error object in development. ' + 'See https://fb.me/react-crossorigin-error for more information.');
            }
    
            this.onError(error);
          } // Remove our event listeners
    
    
          window.removeEventListener('error', handleWindowError);
        };
    
        invokeGuardedCallbackImpl = invokeGuardedCallbackDev;
      }
    }
    
    var invokeGuardedCallbackImpl$1 = invokeGuardedCallbackImpl;
    
    var hasError = false;
    var caughtError = null; // Used by event system to capture/rethrow the first error.
    
    var hasRethrowError = false;
    var rethrowError = null;
    var reporter = {
      onError: function (error) {
        hasError = true;
        caughtError = error;
      }
    };
    /**
     * Call a function while guarding against errors that happens within it.
     * Returns an error if it throws, otherwise null.
     *
     * In production, this is implemented using a try-catch. The reason we don't
     * use a try-catch directly is so that we can swap out a different
     * implementation in DEV mode.
     *
     * @param {String} name of the guard to use for logging or debugging
     * @param {Function} func The function to invoke
     * @param {*} context The context to use when calling the function
     * @param {...*} args Arguments for function
     */
    
    function invokeGuardedCallback(name, func, context, a, b, c, d, e, f) {
      hasError = false;
      caughtError = null;
      invokeGuardedCallbackImpl$1.apply(reporter, arguments);
    }
    /**
     * Same as invokeGuardedCallback, but instead of returning an error, it stores
     * it in a global so it can be rethrown by `rethrowCaughtError` later.
     * TODO: See if caughtError and rethrowError can be unified.
     *
     * @param {String} name of the guard to use for logging or debugging
     * @param {Function} func The function to invoke
     * @param {*} context The context to use when calling the function
     * @param {...*} args Arguments for function
     */
    
    function invokeGuardedCallbackAndCatchFirstError(name, func, context, a, b, c, d, e, f) {
      invokeGuardedCallback.apply(this, arguments);
    
      if (hasError) {
        var error = clearCaughtError();
    
        if (!hasRethrowError) {
          hasRethrowError = true;
          rethrowError = error;
        }
      }
    }
    /**
     * During execution of guarded functions we will capture the first error which
     * we will rethrow to be handled by the top level error handler.
     */
    
    function rethrowCaughtError() {
      if (hasRethrowError) {
        var error = rethrowError;
        hasRethrowError = false;
        rethrowError = null;
        throw error;
      }
    }
    function hasCaughtError() {
      return hasError;
    }
    function clearCaughtError() {
      if (hasError) {
        var error = caughtError;
        hasError = false;
        caughtError = null;
        return error;
      } else {
        (function () {
          {
            {
              throw ReactError(Error("clearCaughtError was called but no error was captured. This error is likely caused by a bug in React. Please file an issue."));
            }
          }
        })();
      }
    }
    
    /**
     * Similar to invariant but only logs a warning if the condition is not met.
     * This can be used to log issues in development environments in critical
     * paths. Removing the logging code for production environments will keep the
     * same logic and follow the same code paths.
     */
    var warningWithoutStack = function () {};
    
    {
      warningWithoutStack = function (condition, format) {
        for (var _len = arguments.length, args = new Array(_len > 2 ? _len - 2 : 0), _key = 2; _key < _len; _key++) {
          args[_key - 2] = arguments[_key];
        }
    
        if (format === undefined) {
          throw new Error('`warningWithoutStack(condition, format, ...args)` requires a warning ' + 'message argument');
        }
    
        if (args.length > 8) {
          // Check before the condition to catch violations early.
          throw new Error('warningWithoutStack() currently supports at most 8 arguments.');
        }
    
        if (condition) {
          return;
        }
    
        if (typeof console !== 'undefined') {
          var argsWithFormat = args.map(function (item) {
            return '' + item;
          });
          argsWithFormat.unshift('Warning: ' + format); // We intentionally don't use spread (or .apply) directly because it
          // breaks IE9: https://github.com/facebook/react/issues/13610
    
          Function.prototype.apply.call(console.error, console, argsWithFormat);
        }
    
        try {
          // --- Welcome to debugging React ---
          // This error was thrown as a convenience so that you can use this stack
          // to find the callsite that caused this warning to fire.
          var argIndex = 0;
          var message = 'Warning: ' + format.replace(/%s/g, function () {
            return args[argIndex++];
          });
          throw new Error(message);
        } catch (x) {}
      };
    }
    
    var warningWithoutStack$1 = warningWithoutStack;
    
    var getFiberCurrentPropsFromNode = null;
    var getInstanceFromNode = null;
    var getNodeFromInstance = null;
    function setComponentTree(getFiberCurrentPropsFromNodeImpl, getInstanceFromNodeImpl, getNodeFromInstanceImpl) {
      getFiberCurrentPropsFromNode = getFiberCurrentPropsFromNodeImpl;
      getInstanceFromNode = getInstanceFromNodeImpl;
      getNodeFromInstance = getNodeFromInstanceImpl;
    
      {
        !(getNodeFromInstance && getInstanceFromNode) ? warningWithoutStack$1(false, 'EventPluginUtils.setComponentTree(...): Injected ' + 'module is missing getNodeFromInstance or getInstanceFromNode.') : void 0;
      }
    }
    var validateEventDispatches;
    
    {
      validateEventDispatches = function (event) {
        var dispatchListeners = event._dispatchListeners;
        var dispatchInstances = event._dispatchInstances;
        var listenersIsArr = Array.isArray(dispatchListeners);
        var listenersLen = listenersIsArr ? dispatchListeners.length : dispatchListeners ? 1 : 0;
        var instancesIsArr = Array.isArray(dispatchInstances);
        var instancesLen = instancesIsArr ? dispatchInstances.length : dispatchInstances ? 1 : 0;
        !(instancesIsArr === listenersIsArr && instancesLen === listenersLen) ? warningWithoutStack$1(false, 'EventPluginUtils: Invalid `event`.') : void 0;
      };
    }
    /**
     * Dispatch the event to the listener.
     * @param {SyntheticEvent} event SyntheticEvent to handle
     * @param {function} listener Application-level callback
     * @param {*} inst Internal component instance
     */
    
    
    function executeDispatch(event, listener, inst) {
      var type = event.type || 'unknown-event';
      event.currentTarget = getNodeFromInstance(inst);
      invokeGuardedCallbackAndCatchFirstError(type, listener, undefined, event);
      event.currentTarget = null;
    }
    /**
     * Standard/simple iteration through an event's collected dispatches.
     */
    
    function executeDispatchesInOrder(event) {
      var dispatchListeners = event._dispatchListeners;
      var dispatchInstances = event._dispatchInstances;
    
      {
        validateEventDispatches(event);
      }
    
      if (Array.isArray(dispatchListeners)) {
        for (var i = 0; i < dispatchListeners.length; i++) {
          if (event.isPropagationStopped()) {
            break;
          } // Listeners and Instances are two parallel arrays that are always in sync.
    
    
          executeDispatch(event, dispatchListeners[i], dispatchInstances[i]);
        }
      } else if (dispatchListeners) {
        executeDispatch(event, dispatchListeners, dispatchInstances);
      }
    
      event._dispatchListeners = null;
      event._dispatchInstances = null;
    }
    /**
     * @see executeDispatchesInOrderStopAtTrueImpl
     */
    
    
    
    /**
     * Execution of a "direct" dispatch - there must be at most one dispatch
     * accumulated on the event or it is considered an error. It doesn't really make
     * sense for an event with multiple dispatches (bubbled) to keep track of the
     * return values at each dispatch execution, but it does tend to make sense when
     * dealing with "direct" dispatches.
     *
     * @return {*} The return value of executing the single dispatch.
     */
    
    
    /**
     * @param {SyntheticEvent} event
     * @return {boolean} True iff number of dispatches accumulated is greater than 0.
     */
    
    /**
     * Accumulates items that must not be null or undefined into the first one. This
     * is used to conserve memory by avoiding array allocations, and thus sacrifices
     * API cleanness. Since `current` can be null before being passed in and not
     * null after this function, make sure to assign it back to `current`:
     *
     * `a = accumulateInto(a, b);`
     *
     * This API should be sparingly used. Try `accumulate` for something cleaner.
     *
     * @return {*|array<*>} An accumulation of items.
     */
    
    function accumulateInto(current, next) {
      (function () {
        if (!(next != null)) {
          {
            throw ReactError(Error("accumulateInto(...): Accumulated items must not be null or undefined."));
          }
        }
      })();
    
      if (current == null) {
        return next;
      } // Both are not empty. Warning: Never call x.concat(y) when you are not
      // certain that x is an Array (x could be a string with concat method).
    
    
      if (Array.isArray(current)) {
        if (Array.isArray(next)) {
          current.push.apply(current, next);
          return current;
        }
    
        current.push(next);
        return current;
      }
    
      if (Array.isArray(next)) {
        // A bit too dangerous to mutate `next`.
        return [current].concat(next);
      }
    
      return [current, next];
    }
    
    /**
     * @param {array} arr an "accumulation" of items which is either an Array or
     * a single item. Useful when paired with the `accumulate` module. This is a
     * simple utility that allows us to reason about a collection of items, but
     * handling the case when there is exactly one item (and we do not need to
     * allocate an array).
     * @param {function} cb Callback invoked with each element or a collection.
     * @param {?} [scope] Scope used as `this` in a callback.
     */
    function forEachAccumulated(arr, cb, scope) {
      if (Array.isArray(arr)) {
        arr.forEach(cb, scope);
      } else if (arr) {
        cb.call(scope, arr);
      }
    }
    
    /**
     * Internal queue of events that have accumulated their dispatches and are
     * waiting to have their dispatches executed.
     */
    
    var eventQueue = null;
    /**
     * Dispatches an event and releases it back into the pool, unless persistent.
     *
     * @param {?object} event Synthetic event to be dispatched.
     * @private
     */
    
    var executeDispatchesAndRelease = function (event) {
      if (event) {
        executeDispatchesInOrder(event);
    
        if (!event.isPersistent()) {
          event.constructor.release(event);
        }
      }
    };
    
    var executeDispatchesAndReleaseTopLevel = function (e) {
      return executeDispatchesAndRelease(e);
    };
    
    function runEventsInBatch(events) {
      if (events !== null) {
        eventQueue = accumulateInto(eventQueue, events);
      } // Set `eventQueue` to null before processing it so that we can tell if more
      // events get enqueued while processing.
    
    
      var processingEventQueue = eventQueue;
      eventQueue = null;
    
      if (!processingEventQueue) {
        return;
      }
    
      forEachAccumulated(processingEventQueue, executeDispatchesAndReleaseTopLevel);
    
      (function () {
        if (!!eventQueue) {
          {
            throw ReactError(Error("processEventQueue(): Additional events were enqueued while processing an event queue. Support for this has not yet been implemented."));
          }
        }
      })(); // This would be a good time to rethrow if any of the event handlers threw.
    
    
      rethrowCaughtError();
    }
    
    function isInteractive(tag) {
      return tag === 'button' || tag === 'input' || tag === 'select' || tag === 'textarea';
    }
    
    function shouldPreventMouseEvent(name, type, props) {
      switch (name) {
        case 'onClick':
        case 'onClickCapture':
        case 'onDoubleClick':
        case 'onDoubleClickCapture':
        case 'onMouseDown':
        case 'onMouseDownCapture':
        case 'onMouseMove':
        case 'onMouseMoveCapture':
        case 'onMouseUp':
        case 'onMouseUpCapture':
          return !!(props.disabled && isInteractive(type));
    
        default:
          return false;
      }
    }
    /**
     * This is a unified interface for event plugins to be installed and configured.
     *
     * Event plugins can implement the following properties:
     *
     *   `extractEvents` {function(string, DOMEventTarget, string, object): *}
     *     Required. When a top-level event is fired, this method is expected to
     *     extract synthetic events that will in turn be queued and dispatched.
     *
     *   `eventTypes` {object}
     *     Optional, plugins that fire events must publish a mapping of registration
     *     names that are used to register listeners. Values of this mapping must
     *     be objects that contain `registrationName` or `phasedRegistrationNames`.
     *
     *   `executeDispatch` {function(object, function, string)}
     *     Optional, allows plugins to override how an event gets dispatched. By
     *     default, the listener is simply invoked.
     *
     * Each plugin that is injected into `EventsPluginHub` is immediately operable.
     *
     * @public
     */
    
    /**
     * Methods for injecting dependencies.
     */
    
    
    var injection = {
      /**
       * @param {array} InjectedEventPluginOrder
       * @public
       */
      injectEventPluginOrder: injectEventPluginOrder,
    
      /**
       * @param {object} injectedNamesToPlugins Map from names to plugin modules.
       */
      injectEventPluginsByName: injectEventPluginsByName
    };
    /**
     * @param {object} inst The instance, which is the source of events.
     * @param {string} registrationName Name of listener (e.g. `onClick`).
     * @return {?function} The stored callback.
     */
    
    function getListener(inst, registrationName) {
      var listener; // TODO: shouldPreventMouseEvent is DOM-specific and definitely should not
      // live here; needs to be moved to a better place soon
    
      var stateNode = inst.stateNode;
    
      if (!stateNode) {
        // Work in progress (ex: onload events in incremental mode).
        return null;
      }
    
      var props = getFiberCurrentPropsFromNode(stateNode);
    
      if (!props) {
        // Work in progress.
        return null;
      }
    
      listener = props[registrationName];
    
      if (shouldPreventMouseEvent(registrationName, inst.type, props)) {
        return null;
      }
    
      (function () {
        if (!(!listener || typeof listener === 'function')) {
          {
            throw ReactError(Error("Expected `" + registrationName + "` listener to be a function, instead got a value of `" + typeof listener + "` type."));
          }
        }
      })();
    
      return listener;
    }
    /**
     * Allows registered plugins an opportunity to extract events from top-level
     * native browser events.
     *
     * @return {*} An accumulation of synthetic events.
     * @internal
     */
    
    function extractPluginEvents(topLevelType, eventSystemFlags, targetInst, nativeEvent, nativeEventTarget) {
      var events = null;
    
      for (var i = 0; i < plugins.length; i++) {
        // Not every plugin in the ordering may be loaded at runtime.
        var possiblePlugin = plugins[i];
    
        if (possiblePlugin) {
          var extractedEvents = possiblePlugin.extractEvents(topLevelType, eventSystemFlags, targetInst, nativeEvent, nativeEventTarget);
    
          if (extractedEvents) {
            events = accumulateInto(events, extractedEvents);
          }
        }
      }
    
      return events;
    }
    
    function runExtractedPluginEventsInBatch(topLevelType, eventSystemFlags, targetInst, nativeEvent, nativeEventTarget) {
      var events = extractPluginEvents(topLevelType, eventSystemFlags, targetInst, nativeEvent, nativeEventTarget);
      runEventsInBatch(events);
    }
    
    var FunctionComponent = 0;
    var ClassComponent = 1;
    var IndeterminateComponent = 2; // Before we know whether it is function or class
    
    var HostRoot = 3; // Root of a host tree. Could be nested inside another node.
    
    var HostPortal = 4; // A subtree. Could be an entry point to a different renderer.
    
    var HostComponent = 5;
    var HostText = 6;
    var Fragment = 7;
    var Mode = 8;
    var ContextConsumer = 9;
    var ContextProvider = 10;
    var ForwardRef = 11;
    var Profiler = 12;
    var SuspenseComponent = 13;
    var MemoComponent = 14;
    var SimpleMemoComponent = 15;
    var LazyComponent = 16;
    var IncompleteClassComponent = 17;
    var DehydratedFragment = 18;
    var SuspenseListComponent = 19;
    var FundamentalComponent = 20;
    var ScopeComponent = 21;
    
    var ReactSharedInternals = React.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED; // Prevent newer renderers from RTE when used with older react package versions.
    // Current owner and dispatcher used to share the same ref,
    // but PR #14548 split them out to better support the react-debug-tools package.
    
    if (!ReactSharedInternals.hasOwnProperty('ReactCurrentDispatcher')) {
      ReactSharedInternals.ReactCurrentDispatcher = {
        current: null
      };
    }
    
    if (!ReactSharedInternals.hasOwnProperty('ReactCurrentBatchConfig')) {
      ReactSharedInternals.ReactCurrentBatchConfig = {
        suspense: null
      };
    }
    
    var BEFORE_SLASH_RE = /^(.*)[\\\/]/;
    var describeComponentFrame = function (name, source, ownerName) {
      var sourceInfo = '';
    
      if (source) {
        var path = source.fileName;
        var fileName = path.replace(BEFORE_SLASH_RE, '');
    
        {
          // In DEV, include code for a common special case:
          // prefer "folder/index.js" instead of just "index.js".
          if (/^index\./.test(fileName)) {
            var match = path.match(BEFORE_SLASH_RE);
    
            if (match) {
              var pathBeforeSlash = match[1];
    
              if (pathBeforeSlash) {
                var folderName = pathBeforeSlash.replace(BEFORE_SLASH_RE, '');
                fileName = folderName + '/' + fileName;
              }
            }
          }
        }
    
        sourceInfo = ' (at ' + fileName + ':' + source.lineNumber + ')';
      } else if (ownerName) {
        sourceInfo = ' (created by ' + ownerName + ')';
      }
    
      return '\n    in ' + (name || 'Unknown') + sourceInfo;
    };
    
    // The Symbol used to tag the ReactElement-like types. If there is no native Symbol
    // nor polyfill, then a plain number is used for performance.
    var hasSymbol = typeof Symbol === 'function' && Symbol.for;
    var REACT_ELEMENT_TYPE = hasSymbol ? Symbol.for('react.element') : 0xeac7;
    var REACT_PORTAL_TYPE = hasSymbol ? Symbol.for('react.portal') : 0xeaca;
    var REACT_FRAGMENT_TYPE = hasSymbol ? Symbol.for('react.fragment') : 0xeacb;
    var REACT_STRICT_MODE_TYPE = hasSymbol ? Symbol.for('react.strict_mode') : 0xeacc;
    var REACT_PROFILER_TYPE = hasSymbol ? Symbol.for('react.profiler') : 0xead2;
    var REACT_PROVIDER_TYPE = hasSymbol ? Symbol.for('react.provider') : 0xeacd;
    var REACT_CONTEXT_TYPE = hasSymbol ? Symbol.for('react.context') : 0xeace; // TODO: We don't use AsyncMode or ConcurrentMode anymore. They were temporary
    // (unstable) APIs that have been removed. Can we remove the symbols?
    
    
    var REACT_CONCURRENT_MODE_TYPE = hasSymbol ? Symbol.for('react.concurrent_mode') : 0xeacf;
    var REACT_FORWARD_REF_TYPE = hasSymbol ? Symbol.for('react.forward_ref') : 0xead0;
    var REACT_SUSPENSE_TYPE = hasSymbol ? Symbol.for('react.suspense') : 0xead1;
    var REACT_SUSPENSE_LIST_TYPE = hasSymbol ? Symbol.for('react.suspense_list') : 0xead8;
    var REACT_MEMO_TYPE = hasSymbol ? Symbol.for('react.memo') : 0xead3;
    var REACT_LAZY_TYPE = hasSymbol ? Symbol.for('react.lazy') : 0xead4;
    var REACT_FUNDAMENTAL_TYPE = hasSymbol ? Symbol.for('react.fundamental') : 0xead5;
    var REACT_RESPONDER_TYPE = hasSymbol ? Symbol.for('react.responder') : 0xead6;
    var REACT_SCOPE_TYPE = hasSymbol ? Symbol.for('react.scope') : 0xead7;
    var MAYBE_ITERATOR_SYMBOL = typeof Symbol === 'function' && Symbol.iterator;
    var FAUX_ITERATOR_SYMBOL = '@@iterator';
    function getIteratorFn(maybeIterable) {
      if (maybeIterable === null || typeof maybeIterable !== 'object') {
        return null;
      }
    
      var maybeIterator = MAYBE_ITERATOR_SYMBOL && maybeIterable[MAYBE_ITERATOR_SYMBOL] || maybeIterable[FAUX_ITERATOR_SYMBOL];
    
      if (typeof maybeIterator === 'function') {
        return maybeIterator;
      }
    
      return null;
    }
    
    /**
     * Similar to invariant but only logs a warning if the condition is not met.
     * This can be used to log issues in development environments in critical
     * paths. Removing the logging code for production environments will keep the
     * same logic and follow the same code paths.
     */
    
    var warning = warningWithoutStack$1;
    
    {
      warning = function (condition, format) {
        if (condition) {
          return;
        }
    
        var ReactDebugCurrentFrame = ReactSharedInternals.ReactDebugCurrentFrame;
        var stack = ReactDebugCurrentFrame.getStackAddendum(); // eslint-disable-next-line react-internal/warning-and-invariant-args
    
        for (var _len = arguments.length, args = new Array(_len > 2 ? _len - 2 : 0), _key = 2; _key < _len; _key++) {
          args[_key - 2] = arguments[_key];
        }
    
        warningWithoutStack$1.apply(void 0, [false, format + '%s'].concat(args, [stack]));
      };
    }
    
    var warning$1 = warning;
    
    var Uninitialized = -1;
    var Pending = 0;
    var Resolved = 1;
    var Rejected = 2;
    function refineResolvedLazyComponent(lazyComponent) {
      return lazyComponent._status === Resolved ? lazyComponent._result : null;
    }
    function initializeLazyComponentType(lazyComponent) {
      if (lazyComponent._status === Uninitialized) {
        lazyComponent._status = Pending;
        var ctor = lazyComponent._ctor;
        var thenable = ctor();
        lazyComponent._result = thenable;
        thenable.then(function (moduleObject) {
          if (lazyComponent._status === Pending) {
            var defaultExport = moduleObject.default;
    
            {
              if (defaultExport === undefined) {
                warning$1(false, 'lazy: Expected the result of a dynamic import() call. ' + 'Instead received: %s\n\nYour code should look like: \n  ' + "const MyComponent = lazy(() => import('./MyComponent'))", moduleObject);
              }
            }
    
            lazyComponent._status = Resolved;
            lazyComponent._result = defaultExport;
          }
        }, function (error) {
          if (lazyComponent._status === Pending) {
            lazyComponent._status = Rejected;
            lazyComponent._result = error;
          }
        });
      }
    }
    
    function getWrappedName(outerType, innerType, wrapperName) {
      var functionName = innerType.displayName || innerType.name || '';
      return outerType.displayName || (functionName !== '' ? wrapperName + "(" + functionName + ")" : wrapperName);
    }
    
    function getComponentName(type) {
      if (type == null) {
        // Host root, text node or just invalid type.
        return null;
      }
    
      {
        if (typeof type.tag === 'number') {
          warningWithoutStack$1(false, 'Received an unexpected object in getComponentName(). ' + 'This is likely a bug in React. Please file an issue.');
        }
      }
    
      if (typeof type === 'function') {
        return type.displayName || type.name || null;
      }
    
      if (typeof type === 'string') {
        return type;
      }
    
      switch (type) {
        case REACT_FRAGMENT_TYPE:
          return 'Fragment';
    
        case REACT_PORTAL_TYPE:
          return 'Portal';
    
        case REACT_PROFILER_TYPE:
          return "Profiler";
    
        case REACT_STRICT_MODE_TYPE:
          return 'StrictMode';
    
        case REACT_SUSPENSE_TYPE:
          return 'Suspense';
    
        case REACT_SUSPENSE_LIST_TYPE:
          return 'SuspenseList';
      }
    
      if (typeof type === 'object') {
        switch (type.$$typeof) {
          case REACT_CONTEXT_TYPE:
            return 'Context.Consumer';
    
          case REACT_PROVIDER_TYPE:
            return 'Context.Provider';
    
          case REACT_FORWARD_REF_TYPE:
            return getWrappedName(type, type.render, 'ForwardRef');
    
          case REACT_MEMO_TYPE:
            return getComponentName(type.type);
    
          case REACT_LAZY_TYPE:
            {
              var thenable = type;
              var resolvedThenable = refineResolvedLazyComponent(thenable);
    
              if (resolvedThenable) {
                return getComponentName(resolvedThenable);
              }
    
              break;
            }
        }
      }
    
      return null;
    }
    
    var ReactDebugCurrentFrame = ReactSharedInternals.ReactDebugCurrentFrame;
    
    function describeFiber(fiber) {
      switch (fiber.tag) {
        case HostRoot:
        case HostPortal:
        case HostText:
        case Fragment:
        case ContextProvider:
        case ContextConsumer:
          return '';
    
        default:
          var owner = fiber._debugOwner;
          var source = fiber._debugSource;
          var name = getComponentName(fiber.type);
          var ownerName = null;
    
          if (owner) {
            ownerName = getComponentName(owner.type);
          }
    
          return describeComponentFrame(name, source, ownerName);
      }
    }
    
    function getStackByFiberInDevAndProd(workInProgress) {
      var info = '';
      var node = workInProgress;
    
      do {
        info += describeFiber(node);
        node = node.return;
      } while (node);
    
      return info;
    }
    var current = null;
    var phase = null;
    function getCurrentFiberOwnerNameInDevOrNull() {
      {
        if (current === null) {
          return null;
        }
    
        var owner = current._debugOwner;
    
        if (owner !== null && typeof owner !== 'undefined') {
          return getComponentName(owner.type);
        }
      }
    
      return null;
    }
    function getCurrentFiberStackInDev() {
      {
        if (current === null) {
          return '';
        } // Safe because if current fiber exists, we are reconciling,
        // and it is guaranteed to be the work-in-progress version.
    
    
        return getStackByFiberInDevAndProd(current);
      }
    
      return '';
    }
    function resetCurrentFiber() {
      {
        ReactDebugCurrentFrame.getCurrentStack = null;
        current = null;
        phase = null;
      }
    }
    function setCurrentFiber(fiber) {
      {
        ReactDebugCurrentFrame.getCurrentStack = getCurrentFiberStackInDev;
        current = fiber;
        phase = null;
      }
    }
    function setCurrentPhase(lifeCyclePhase) {
      {
        phase = lifeCyclePhase;
      }
    }
    
    var canUseDOM = !!(typeof window !== 'undefined' && typeof window.document !== 'undefined' && typeof window.document.createElement !== 'undefined');
    
    function endsWith(subject, search) {
      var length = subject.length;
      return subject.substring(length - search.length, length) === search;
    }
    
    var PLUGIN_EVENT_SYSTEM = 1;
    var RESPONDER_EVENT_SYSTEM = 1 << 1;
    var IS_PASSIVE = 1 << 2;
    var IS_ACTIVE = 1 << 3;
    var PASSIVE_NOT_SUPPORTED = 1 << 4;
    var IS_REPLAYED = 1 << 5;
    
    var restoreImpl = null;
    var restoreTarget = null;
    var restoreQueue = null;
    
    function restoreStateOfTarget(target) {
      // We perform this translation at the end of the event loop so that we
      // always receive the correct fiber here
      var internalInstance = getInstanceFromNode(target);
    
      if (!internalInstance) {
        // Unmounted
        return;
      }
    
      (function () {
        if (!(typeof restoreImpl === 'function')) {
          {
            throw ReactError(Error("setRestoreImplementation() needs to be called to handle a target for controlled events. This error is likely caused by a bug in React. Please file an issue."));
          }
        }
      })();
    
      var props = getFiberCurrentPropsFromNode(internalInstance.stateNode);
      restoreImpl(internalInstance.stateNode, internalInstance.type, props);
    }
    
    function setRestoreImplementation(impl) {
      restoreImpl = impl;
    }
    function enqueueStateRestore(target) {
      if (restoreTarget) {
        if (restoreQueue) {
          restoreQueue.push(target);
        } else {
          restoreQueue = [target];
        }
      } else {
        restoreTarget = target;
      }
    }
    function needsStateRestore() {
      return restoreTarget !== null || restoreQueue !== null;
    }
    function restoreStateIfNeeded() {
      if (!restoreTarget) {
        return;
      }
    
      var target = restoreTarget;
      var queuedTargets = restoreQueue;
      restoreTarget = null;
      restoreQueue = null;
      restoreStateOfTarget(target);
    
      if (queuedTargets) {
        for (var i = 0; i < queuedTargets.length; i++) {
          restoreStateOfTarget(queuedTargets[i]);
        }
      }
    }
    
    var enableUserTimingAPI = true; // Helps identify side effects in begin-phase lifecycle hooks and setState reducers:
    
    var debugRenderPhaseSideEffects = false; // In some cases, StrictMode should also double-render lifecycles.
    // This can be confusing for tests though,
    // And it can be bad for performance in production.
    // This feature flag can be used to control the behavior:
    
    var debugRenderPhaseSideEffectsForStrictMode = true; // To preserve the "Pause on caught exceptions" behavior of the debugger, we
    // replay the begin phase of a failed component inside invokeGuardedCallback.
    
    var replayFailedUnitOfWorkWithInvokeGuardedCallback = true; // Warn about deprecated, async-unsafe lifecycles; relates to RFC #6:
    
    var warnAboutDeprecatedLifecycles = true; // Gather advanced timing metrics for Profiler subtrees.
    
    var enableProfilerTimer = true; // Trace which interactions trigger each commit.
    
    var enableSchedulerTracing = true; // Only used in www builds.
    
    var enableSuspenseServerRenderer = false; // TODO: true? Here it might just be false.
    
    var enableSelectiveHydration = false; // Only used in www builds.
    
     // Only used in www builds.
    
     // Disable javascript: URL strings in href for XSS protection.
    
    var disableJavaScriptURLs = false; // React Fire: prevent the value and checked attributes from syncing
    // with their related DOM properties
    
    var disableInputAttributeSyncing = false; // These APIs will no longer be "unstable" in the upcoming 16.7 release,
    // Control this behavior with a flag to support 16.6 minor releases in the meanwhile.
    
    var enableStableConcurrentModeAPIs = false;
    var warnAboutShorthandPropertyCollision = false; // See https://github.com/react-native-community/discussions-and-proposals/issues/72 for more information
    // This is a flag so we can fix warnings in RN core before turning it on
    
     // Experimental React Flare event system and event components support.
    
    var enableFlareAPI = false; // Experimental Host Component support.
    
    var enableFundamentalAPI = false; // Experimental Scope support.
    
    var enableScopeAPI = false; // New API for JSX transforms to target - https://github.com/reactjs/rfcs/pull/107
    
     // We will enforce mocking scheduler with scheduler/unstable_mock at some point. (v17?)
    // Till then, we warn about the missing mock, but still fallback to a sync mode compatible version
    
    var warnAboutUnmockedScheduler = false; // For tests, we flush suspense fallbacks in an act scope;
    // *except* in some of our own tests, where we test incremental loading states.
    
    var flushSuspenseFallbacksInTests = true; // Changes priority of some events like mousemove to user-blocking priority,
    // but without making them discrete. The flag exists in case it causes
    // starvation problems.
    
    var enableUserBlockingEvents = false; // Add a callback property to suspense to notify which promises are currently
    // in the update queue. This allows reporting and tracing of what is causing
    // the user to see a loading state.
    // Also allows hydration callbacks to fire when a dehydrated boundary gets
    // hydrated or deleted.
    
    var enableSuspenseCallback = false; // Part of the simplification of React.createElement so we can eventually move
    // from React.createElement to React.jsx
    // https://github.com/reactjs/rfcs/blob/createlement-rfc/text/0000-create-element-changes.md
    
    var warnAboutDefaultPropsOnFunctionComponents = false;
    var warnAboutStringRefs = false;
    var disableLegacyContext = false;
    var disableSchedulerTimeoutBasedOnReactExpirationTime = false;
    var enableTrustedTypesIntegration = false;
    
    // the renderer. Such as when we're dispatching events or if third party
    // libraries need to call batchedUpdates. Eventually, this API will go away when
    // everything is batched by default. We'll then have a similar API to opt-out of
    // scheduled work and instead do synchronous work.
    // Defaults
    
    var batchedUpdatesImpl = function (fn, bookkeeping) {
      return fn(bookkeeping);
    };
    
    var discreteUpdatesImpl = function (fn, a, b, c) {
      return fn(a, b, c);
    };
    
    var flushDiscreteUpdatesImpl = function () {};
    
    var batchedEventUpdatesImpl = batchedUpdatesImpl;
    var isInsideEventHandler = false;
    var isBatchingEventUpdates = false;
    
    function finishEventHandler() {
      // Here we wait until all updates have propagated, which is important
      // when using controlled components within layers:
      // https://github.com/facebook/react/issues/1698
      // Then we restore state of any controlled component.
      var controlledComponentsHavePendingUpdates = needsStateRestore();
    
      if (controlledComponentsHavePendingUpdates) {
        // If a controlled event was fired, we may need to restore the state of
        // the DOM node back to the controlled value. This is necessary when React
        // bails out of the update without touching the DOM.
        flushDiscreteUpdatesImpl();
        restoreStateIfNeeded();
      }
    }
    
    function batchedUpdates(fn, bookkeeping) {
      if (isInsideEventHandler) {
        // If we are currently inside another batch, we need to wait until it
        // fully completes before restoring state.
        return fn(bookkeeping);
      }
    
      isInsideEventHandler = true;
    
      try {
        return batchedUpdatesImpl(fn, bookkeeping);
      } finally {
        isInsideEventHandler = false;
        finishEventHandler();
      }
    }
    function batchedEventUpdates(fn, a, b) {
      if (isBatchingEventUpdates) {
        // If we are currently inside another batch, we need to wait until it
        // fully completes before restoring state.
        return fn(a, b);
      }
    
      isBatchingEventUpdates = true;
    
      try {
        return batchedEventUpdatesImpl(fn, a, b);
      } finally {
        isBatchingEventUpdates = false;
        finishEventHandler();
      }
    } // This is for the React Flare event system
    
    function executeUserEventHandler(fn, value) {
      var previouslyInEventHandler = isInsideEventHandler;
    
      try {
        isInsideEventHandler = true;
        var type = typeof value === 'object' && value !== null ? value.type : '';
        invokeGuardedCallbackAndCatchFirstError(type, fn, undefined, value);
      } finally {
        isInsideEventHandler = previouslyInEventHandler;
      }
    }
    function discreteUpdates(fn, a, b, c) {
      var prevIsInsideEventHandler = isInsideEventHandler;
      isInsideEventHandler = true;
    
      try {
        return discreteUpdatesImpl(fn, a, b, c);
      } finally {
        isInsideEventHandler = prevIsInsideEventHandler;
    
        if (!isInsideEventHandler) {
          finishEventHandler();
        }
      }
    }
    var lastFlushedEventTimeStamp = 0;
    function flushDiscreteUpdatesIfNeeded(timeStamp) {
      // event.timeStamp isn't overly reliable due to inconsistencies in
      // how different browsers have historically provided the time stamp.
      // Some browsers provide high-resolution time stamps for all events,
      // some provide low-resolution time stamps for all events. FF < 52
      // even mixes both time stamps together. Some browsers even report
      // negative time stamps or time stamps that are 0 (iOS9) in some cases.
      // Given we are only comparing two time stamps with equality (!==),
      // we are safe from the resolution differences. If the time stamp is 0
      // we bail-out of preventing the flush, which can affect semantics,
      // such as if an earlier flush removes or adds event listeners that
      // are fired in the subsequent flush. However, this is the same
      // behaviour as we had before this change, so the risks are low.
      if (!isInsideEventHandler && (!enableFlareAPI || timeStamp === 0 || lastFlushedEventTimeStamp !== timeStamp)) {
        lastFlushedEventTimeStamp = timeStamp;
        flushDiscreteUpdatesImpl();
      }
    }
    function setBatchingImplementation(_batchedUpdatesImpl, _discreteUpdatesImpl, _flushDiscreteUpdatesImpl, _batchedEventUpdatesImpl) {
      batchedUpdatesImpl = _batchedUpdatesImpl;
      discreteUpdatesImpl = _discreteUpdatesImpl;
      flushDiscreteUpdatesImpl = _flushDiscreteUpdatesImpl;
      batchedEventUpdatesImpl = _batchedEventUpdatesImpl;
    }
    
    var DiscreteEvent = 0;
    var UserBlockingEvent = 1;
    var ContinuousEvent = 2;
    
    // CommonJS interop named imports.
    
    var UserBlockingPriority = Scheduler.unstable_UserBlockingPriority;
    var runWithPriority = Scheduler.unstable_runWithPriority;
    var listenToResponderEventTypesImpl;
    function setListenToResponderEventTypes(_listenToResponderEventTypesImpl) {
      listenToResponderEventTypesImpl = _listenToResponderEventTypesImpl;
    }
    var activeTimeouts = new Map();
    var rootEventTypesToEventResponderInstances = new Map();
    var DoNotPropagateToNextResponder = 0;
    var PropagateToNextResponder = 1;
    var currentTimeStamp = 0;
    var currentTimers = new Map();
    var currentInstance = null;
    var currentTimerIDCounter = 0;
    var currentDocument = null;
    var currentPropagationBehavior = DoNotPropagateToNextResponder;
    var eventResponderContext = {
      dispatchEvent: function (eventValue, eventListener, eventPriority) {
        validateResponderContext();
        validateEventValue(eventValue);
    
        switch (eventPriority) {
          case DiscreteEvent:
            {
              flushDiscreteUpdatesIfNeeded(currentTimeStamp);
              discreteUpdates(function () {
                return executeUserEventHandler(eventListener, eventValue);
              });
              break;
            }
    
          case UserBlockingEvent:
            {
              if (enableUserBlockingEvents) {
                runWithPriority(UserBlockingPriority, function () {
                  return executeUserEventHandler(eventListener, eventValue);
                });
              } else {
                executeUserEventHandler(eventListener, eventValue);
              }
    
              break;
            }
    
          case ContinuousEvent:
            {
              executeUserEventHandler(eventListener, eventValue);
              break;
            }
        }
      },
      isTargetWithinResponder: function (target) {
        validateResponderContext();
    
        if (target != null) {
          var fiber = getClosestInstanceFromNode(target);
          var responderFiber = currentInstance.fiber;
    
          while (fiber !== null) {
            if (fiber === responderFiber || fiber.alternate === responderFiber) {
              return true;
            }
    
            fiber = fiber.return;
          }
        }
    
        return false;
      },
      isTargetWithinResponderScope: function (target) {
        validateResponderContext();
        var componentInstance = currentInstance;
        var responder = componentInstance.responder;
    
        if (target != null) {
          var fiber = getClosestInstanceFromNode(target);
          var responderFiber = currentInstance.fiber;
    
          while (fiber !== null) {
            if (fiber === responderFiber || fiber.alternate === responderFiber) {
              return true;
            }
    
            if (doesFiberHaveResponder(fiber, responder)) {
              return false;
            }
    
            fiber = fiber.return;
          }
        }
    
        return false;
      },
      isTargetWithinNode: function (childTarget, parentTarget) {
        validateResponderContext();
        var childFiber = getClosestInstanceFromNode(childTarget);
        var parentFiber = getClosestInstanceFromNode(parentTarget);
    
        if (childFiber != null && parentFiber != null) {
          var parentAlternateFiber = parentFiber.alternate;
          var node = childFiber;
    
          while (node !== null) {
            if (node === parentFiber || node === parentAlternateFiber) {
              return true;
            }
    
            node = node.return;
          }
    
          return false;
        } // Fallback to DOM APIs
    
    
        return parentTarget.contains(childTarget);
      },
      addRootEventTypes: function (rootEventTypes) {
        validateResponderContext();
        listenToResponderEventTypesImpl(rootEventTypes, currentDocument);
    
        for (var i = 0; i < rootEventTypes.length; i++) {
          var rootEventType = rootEventTypes[i];
          var eventResponderInstance = currentInstance;
          registerRootEventType(rootEventType, eventResponderInstance);
        }
      },
      removeRootEventTypes: function (rootEventTypes) {
        validateResponderContext();
    
        for (var i = 0; i < rootEventTypes.length; i++) {
          var rootEventType = rootEventTypes[i];
          var rootEventResponders = rootEventTypesToEventResponderInstances.get(rootEventType);
          var rootEventTypesSet = currentInstance.rootEventTypes;
    
          if (rootEventTypesSet !== null) {
            rootEventTypesSet.delete(rootEventType);
          }
    
          if (rootEventResponders !== undefined) {
            rootEventResponders.delete(currentInstance);
          }
        }
      },
      setTimeout: function (func, delay) {
        validateResponderContext();
    
        if (currentTimers === null) {
          currentTimers = new Map();
        }
    
        var timeout = currentTimers.get(delay);
        var timerId = currentTimerIDCounter++;
    
        if (timeout === undefined) {
          var timers = new Map();
          var id = setTimeout(function () {
            processTimers(timers, delay);
          }, delay);
          timeout = {
            id: id,
            timers: timers
          };
          currentTimers.set(delay, timeout);
        }
    
        timeout.timers.set(timerId, {
          instance: currentInstance,
          func: func,
          id: timerId,
          timeStamp: currentTimeStamp
        });
        activeTimeouts.set(timerId, timeout);
        return timerId;
      },
      clearTimeout: function (timerId) {
        validateResponderContext();
        var timeout = activeTimeouts.get(timerId);
    
        if (timeout !== undefined) {
          var timers = timeout.timers;
          timers.delete(timerId);
    
          if (timers.size === 0) {
            clearTimeout(timeout.id);
          }
        }
      },
      getActiveDocument: getActiveDocument,
      objectAssign: _assign,
      getTimeStamp: function () {
        validateResponderContext();
        return currentTimeStamp;
      },
      isTargetWithinHostComponent: function (target, elementType) {
        validateResponderContext();
        var fiber = getClosestInstanceFromNode(target);
    
        while (fiber !== null) {
          if (fiber.tag === HostComponent && fiber.type === elementType) {
            return true;
          }
    
          fiber = fiber.return;
        }
    
        return false;
      },
      continuePropagation: function () {
        currentPropagationBehavior = PropagateToNextResponder;
      },
      enqueueStateRestore: enqueueStateRestore,
      getResponderNode: function () {
        validateResponderContext();
        var responderFiber = currentInstance.fiber;
    
        if (responderFiber.tag === ScopeComponent) {
          return null;
        }
    
        return responderFiber.stateNode;
      }
    };
    
    function validateEventValue(eventValue) {
      if (typeof eventValue === 'object' && eventValue !== null) {
        var target = eventValue.target,
            type = eventValue.type,
            timeStamp = eventValue.timeStamp;
    
        if (target == null || type == null || timeStamp == null) {
          throw new Error('context.dispatchEvent: "target", "timeStamp", and "type" fields on event object are required.');
        }
    
        var showWarning = function (name) {
          {
            warning$1(false, '%s is not available on event objects created from event responder modules (React Flare). ' + 'Try wrapping in a conditional, i.e. `if (event.type !== "press") { event.%s }`', name, name);
          }
        };
    
        eventValue.isDefaultPrevented = function () {
          {
            showWarning('isDefaultPrevented()');
          }
        };
    
        eventValue.isPropagationStopped = function () {
          {
            showWarning('isPropagationStopped()');
          }
        }; // $FlowFixMe: we don't need value, Flow thinks we do
    
    
        Object.defineProperty(eventValue, 'nativeEvent', {
          get: function () {
            {
              showWarning('nativeEvent');
            }
          }
        });
      }
    }
    
    function doesFiberHaveResponder(fiber, responder) {
      var tag = fiber.tag;
    
      if (tag === HostComponent || tag === ScopeComponent) {
        var dependencies = fiber.dependencies;
    
        if (dependencies !== null) {
          var respondersMap = dependencies.responders;
    
          if (respondersMap !== null && respondersMap.has(responder)) {
            return true;
          }
        }
      }
    
      return false;
    }
    
    function getActiveDocument() {
      return currentDocument;
    }
    
    function processTimers(timers, delay) {
      var timersArr = Array.from(timers.values());
      var previousInstance = currentInstance;
      var previousTimers = currentTimers;
    
      try {
        batchedEventUpdates(function () {
          for (var i = 0; i < timersArr.length; i++) {
            var _timersArr$i = timersArr[i],
                instance = _timersArr$i.instance,
                func = _timersArr$i.func,
                id = _timersArr$i.id,
                timeStamp = _timersArr$i.timeStamp;
            currentInstance = instance;
            currentTimeStamp = timeStamp + delay;
    
            try {
              func();
            } finally {
              activeTimeouts.delete(id);
            }
          }
        });
      } finally {
        currentTimers = previousTimers;
        currentInstance = previousInstance;
        currentTimeStamp = 0;
      }
    }
    
    function createDOMResponderEvent(topLevelType, nativeEvent, nativeEventTarget, passive, passiveSupported) {
      var _ref = nativeEvent,
          buttons = _ref.buttons,
          pointerType = _ref.pointerType;
      var eventPointerType = '';
    
      if (pointerType !== undefined) {
        eventPointerType = pointerType;
      } else if (nativeEvent.key !== undefined) {
        eventPointerType = 'keyboard';
      } else if (buttons !== undefined) {
        eventPointerType = 'mouse';
      } else if (nativeEvent.changedTouches !== undefined) {
        eventPointerType = 'touch';
      }
    
      return {
        nativeEvent: nativeEvent,
        passive: passive,
        passiveSupported: passiveSupported,
        pointerType: eventPointerType,
        target: nativeEventTarget,
        type: topLevelType
      };
    }
    
    function responderEventTypesContainType(eventTypes, type) {
      for (var i = 0, len = eventTypes.length; i < len; i++) {
        if (eventTypes[i] === type) {
          return true;
        }
      }
    
      return false;
    }
    
    function validateResponderTargetEventTypes(eventType, responder) {
      var targetEventTypes = responder.targetEventTypes; // Validate the target event type exists on the responder
    
      if (targetEventTypes !== null) {
        return responderEventTypesContainType(targetEventTypes, eventType);
      }
    
      return false;
    }
    
    function traverseAndHandleEventResponderInstances(topLevelType, targetFiber, nativeEvent, nativeEventTarget, eventSystemFlags) {
      var isPassiveEvent = (eventSystemFlags & IS_PASSIVE) !== 0;
      var isPassiveSupported = (eventSystemFlags & PASSIVE_NOT_SUPPORTED) === 0;
      var isPassive = isPassiveEvent || !isPassiveSupported;
      var eventType = isPassive ? topLevelType : topLevelType + '_active'; // Trigger event responders in this order:
      // - Bubble target responder phase
      // - Root responder phase
    
      var visitedResponders = new Set();
      var responderEvent = createDOMResponderEvent(topLevelType, nativeEvent, nativeEventTarget, isPassiveEvent, isPassiveSupported);
      var node = targetFiber;
      var insidePortal = false;
    
      while (node !== null) {
        var _node = node,
            dependencies = _node.dependencies,
            tag = _node.tag;
    
        if (tag === HostPortal) {
          insidePortal = true;
        } else if ((tag === HostComponent || tag === ScopeComponent) && dependencies !== null) {
          var respondersMap = dependencies.responders;
    
          if (respondersMap !== null) {
            var responderInstances = Array.from(respondersMap.values());
    
            for (var i = 0, length = responderInstances.length; i < length; i++) {
              var responderInstance = responderInstances[i];
              var props = responderInstance.props,
                  responder = responderInstance.responder,
                  state = responderInstance.state;
    
              if (!visitedResponders.has(responder) && validateResponderTargetEventTypes(eventType, responder) && (!insidePortal || responder.targetPortalPropagation)) {
                visitedResponders.add(responder);
                var onEvent = responder.onEvent;
    
                if (onEvent !== null) {
                  currentInstance = responderInstance;
                  onEvent(responderEvent, eventResponderContext, props, state);
    
                  if (currentPropagationBehavior === PropagateToNextResponder) {
                    visitedResponders.delete(responder);
                    currentPropagationBehavior = DoNotPropagateToNextResponder;
                  }
                }
              }
            }
          }
        }
    
        node = node.return;
      } // Root phase
    
    
      var rootEventResponderInstances = rootEventTypesToEventResponderInstances.get(eventType);
    
      if (rootEventResponderInstances !== undefined) {
        var _responderInstances = Array.from(rootEventResponderInstances);
    
        for (var _i = 0; _i < _responderInstances.length; _i++) {
          var _responderInstance = _responderInstances[_i];
          var props = _responderInstance.props,
              responder = _responderInstance.responder,
              state = _responderInstance.state;
          var onRootEvent = responder.onRootEvent;
    
          if (onRootEvent !== null) {
            currentInstance = _responderInstance;
            onRootEvent(responderEvent, eventResponderContext, props, state);
          }
        }
      }
    }
    
    function mountEventResponder(responder, responderInstance, props, state) {
      var onMount = responder.onMount;
    
      if (onMount !== null) {
        var previousInstance = currentInstance;
        var previousTimers = currentTimers;
        currentInstance = responderInstance;
    
        try {
          batchedEventUpdates(function () {
            onMount(eventResponderContext, props, state);
          });
        } finally {
          currentInstance = previousInstance;
          currentTimers = previousTimers;
        }
      }
    }
    function unmountEventResponder(responderInstance) {
      var responder = responderInstance.responder;
      var onUnmount = responder.onUnmount;
    
      if (onUnmount !== null) {
        var props = responderInstance.props,
            state = responderInstance.state;
        var previousInstance = currentInstance;
        var previousTimers = currentTimers;
        currentInstance = responderInstance;
    
        try {
          batchedEventUpdates(function () {
            onUnmount(eventResponderContext, props, state);
          });
        } finally {
          currentInstance = previousInstance;
          currentTimers = previousTimers;
        }
      }
    
      var rootEventTypesSet = responderInstance.rootEventTypes;
    
      if (rootEventTypesSet !== null) {
        var rootEventTypes = Array.from(rootEventTypesSet);
    
        for (var i = 0; i < rootEventTypes.length; i++) {
          var topLevelEventType = rootEventTypes[i];
          var rootEventResponderInstances = rootEventTypesToEventResponderInstances.get(topLevelEventType);
    
          if (rootEventResponderInstances !== undefined) {
            rootEventResponderInstances.delete(responderInstance);
          }
        }
      }
    }
    
    function validateResponderContext() {
      (function () {
        if (!(currentInstance !== null)) {
          {
            throw ReactError(Error("An event responder context was used outside of an event cycle. Use context.setTimeout() to use asynchronous responder context outside of event cycle ."));
          }
        }
      })();
    }
    
    function dispatchEventForResponderEventSystem(topLevelType, targetFiber, nativeEvent, nativeEventTarget, eventSystemFlags) {
      if (enableFlareAPI) {
        var previousInstance = currentInstance;
        var previousTimers = currentTimers;
        var previousTimeStamp = currentTimeStamp;
        var previousDocument = currentDocument;
        var previousPropagationBehavior = currentPropagationBehavior;
        currentPropagationBehavior = DoNotPropagateToNextResponder;
        currentTimers = null; // nodeType 9 is DOCUMENT_NODE
    
        currentDocument = nativeEventTarget.nodeType === 9 ? nativeEventTarget : nativeEventTarget.ownerDocument; // We might want to control timeStamp another way here
    
        currentTimeStamp = nativeEvent.timeStamp;
    
        try {
          batchedEventUpdates(function () {
            traverseAndHandleEventResponderInstances(topLevelType, targetFiber, nativeEvent, nativeEventTarget, eventSystemFlags);
          });
        } finally {
          currentTimers = previousTimers;
          currentInstance = previousInstance;
          currentTimeStamp = previousTimeStamp;
          currentDocument = previousDocument;
          currentPropagationBehavior = previousPropagationBehavior;
        }
      }
    }
    function addRootEventTypesForResponderInstance(responderInstance, rootEventTypes) {
      for (var i = 0; i < rootEventTypes.length; i++) {
        var rootEventType = rootEventTypes[i];
        registerRootEventType(rootEventType, responderInstance);
      }
    }
    
    function registerRootEventType(rootEventType, eventResponderInstance) {
      var rootEventResponderInstances = rootEventTypesToEventResponderInstances.get(rootEventType);
    
      if (rootEventResponderInstances === undefined) {
        rootEventResponderInstances = new Set();
        rootEventTypesToEventResponderInstances.set(rootEventType, rootEventResponderInstances);
      }
    
      var rootEventTypesSet = eventResponderInstance.rootEventTypes;
    
      if (rootEventTypesSet === null) {
        rootEventTypesSet = eventResponderInstance.rootEventTypes = new Set();
      }
    
      (function () {
        if (!!rootEventTypesSet.has(rootEventType)) {
          {
            throw ReactError(Error("addRootEventTypes() found a duplicate root event type of \"" + rootEventType + "\". This might be because the event type exists in the event responder \"rootEventTypes\" array or because of a previous addRootEventTypes() using this root event type."));
          }
        }
      })();
    
      rootEventTypesSet.add(rootEventType);
      rootEventResponderInstances.add(eventResponderInstance);
    }
    
    // A reserved attribute.
    // It is handled by React separately and shouldn't be written to the DOM.
    var RESERVED = 0; // A simple string attribute.
    // Attributes that aren't in the whitelist are presumed to have this type.
    
    var STRING = 1; // A string attribute that accepts booleans in React. In HTML, these are called
    // "enumerated" attributes with "true" and "false" as possible values.
    // When true, it should be set to a "true" string.
    // When false, it should be set to a "false" string.
    
    var BOOLEANISH_STRING = 2; // A real boolean attribute.
    // When true, it should be present (set either to an empty string or its name).
    // When false, it should be omitted.
    
    var BOOLEAN = 3; // An attribute that can be used as a flag as well as with a value.
    // When true, it should be present (set either to an empty string or its name).
    // When false, it should be omitted.
    // For any other value, should be present with that value.
    
    var OVERLOADED_BOOLEAN = 4; // An attribute that must be numeric or parse as a numeric.
    // When falsy, it should be removed.
    
    var NUMERIC = 5; // An attribute that must be positive numeric or parse as a positive numeric.
    // When falsy, it should be removed.
    
    var POSITIVE_NUMERIC = 6;
    
    /* eslint-disable max-len */
    var ATTRIBUTE_NAME_START_CHAR = ":A-Z_a-z\\u00C0-\\u00D6\\u00D8-\\u00F6\\u00F8-\\u02FF\\u0370-\\u037D\\u037F-\\u1FFF\\u200C-\\u200D\\u2070-\\u218F\\u2C00-\\u2FEF\\u3001-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFFD";
    /* eslint-enable max-len */
    
    var ATTRIBUTE_NAME_CHAR = ATTRIBUTE_NAME_START_CHAR + "\\-.0-9\\u00B7\\u0300-\\u036F\\u203F-\\u2040";
    
    var ROOT_ATTRIBUTE_NAME = 'data-reactroot';
    var VALID_ATTRIBUTE_NAME_REGEX = new RegExp('^[' + ATTRIBUTE_NAME_START_CHAR + '][' + ATTRIBUTE_NAME_CHAR + ']*$');
    var hasOwnProperty = Object.prototype.hasOwnProperty;
    var illegalAttributeNameCache = {};
    var validatedAttributeNameCache = {};
    function isAttributeNameSafe(attributeName) {
      if (hasOwnProperty.call(validatedAttributeNameCache, attributeName)) {
        return true;
      }
    
      if (hasOwnProperty.call(illegalAttributeNameCache, attributeName)) {
        return false;
      }
    
      if (VALID_ATTRIBUTE_NAME_REGEX.test(attributeName)) {
        validatedAttributeNameCache[attributeName] = true;
        return true;
      }
    
      illegalAttributeNameCache[attributeName] = true;
    
      {
        warning$1(false, 'Invalid attribute name: `%s`', attributeName);
      }
    
      return false;
    }
    function shouldIgnoreAttribute(name, propertyInfo, isCustomComponentTag) {
      if (propertyInfo !== null) {
        return propertyInfo.type === RESERVED;
      }
    
      if (isCustomComponentTag) {
        return false;
      }
    
      if (name.length > 2 && (name[0] === 'o' || name[0] === 'O') && (name[1] === 'n' || name[1] === 'N')) {
        return true;
      }
    
      return false;
    }
    function shouldRemoveAttributeWithWarning(name, value, propertyInfo, isCustomComponentTag) {
      if (propertyInfo !== null && propertyInfo.type === RESERVED) {
        return false;
      }
    
      switch (typeof value) {
        case 'function': // $FlowIssue symbol is perfectly valid here
    
        case 'symbol':
          // eslint-disable-line
          return true;
    
        case 'boolean':
          {
            if (isCustomComponentTag) {
              return false;
            }
    
            if (propertyInfo !== null) {
              return !propertyInfo.acceptsBooleans;
            } else {
              var prefix = name.toLowerCase().slice(0, 5);
              return prefix !== 'data-' && prefix !== 'aria-';
            }
          }
    
        default:
          return false;
      }
    }
    function shouldRemoveAttribute(name, value, propertyInfo, isCustomComponentTag) {
      if (value === null || typeof value === 'undefined') {
        return true;
      }
    
      if (shouldRemoveAttributeWithWarning(name, value, propertyInfo, isCustomComponentTag)) {
        return true;
      }
    
      if (isCustomComponentTag) {
        return false;
      }
    
      if (propertyInfo !== null) {
        switch (propertyInfo.type) {
          case BOOLEAN:
            return !value;
    
          case OVERLOADED_BOOLEAN:
            return value === false;
    
          case NUMERIC:
            return isNaN(value);
    
          case POSITIVE_NUMERIC:
            return isNaN(value) || value < 1;
        }
      }
    
      return false;
    }
    function getPropertyInfo(name) {
      return properties.hasOwnProperty(name) ? properties[name] : null;
    }
    
    function PropertyInfoRecord(name, type, mustUseProperty, attributeName, attributeNamespace, sanitizeURL) {
      this.acceptsBooleans = type === BOOLEANISH_STRING || type === BOOLEAN || type === OVERLOADED_BOOLEAN;
      this.attributeName = attributeName;
      this.attributeNamespace = attributeNamespace;
      this.mustUseProperty = mustUseProperty;
      this.propertyName = name;
      this.type = type;
      this.sanitizeURL = sanitizeURL;
    } // When adding attributes to this list, be sure to also add them to
    // the `possibleStandardNames` module to ensure casing and incorrect
    // name warnings.
    
    
    var properties = {}; // These props are reserved by React. They shouldn't be written to the DOM.
    
    ['children', 'dangerouslySetInnerHTML', // TODO: This prevents the assignment of defaultValue to regular
    // elements (not just inputs). Now that ReactDOMInput assigns to the
    // defaultValue property -- do we need this?
    'defaultValue', 'defaultChecked', 'innerHTML', 'suppressContentEditableWarning', 'suppressHydrationWarning', 'style'].forEach(function (name) {
      properties[name] = new PropertyInfoRecord(name, RESERVED, false, // mustUseProperty
      name, // attributeName
      null, // attributeNamespace
      false);
    }); // A few React string attributes have a different name.
    // This is a mapping from React prop names to the attribute names.
    
    [['acceptCharset', 'accept-charset'], ['className', 'class'], ['htmlFor', 'for'], ['httpEquiv', 'http-equiv']].forEach(function (_ref) {
      var name = _ref[0],
          attributeName = _ref[1];
      properties[name] = new PropertyInfoRecord(name, STRING, false, // mustUseProperty
      attributeName, // attributeName
      null, // attributeNamespace
      false);
    }); // These are "enumerated" HTML attributes that accept "true" and "false".
    // In React, we let users pass `true` and `false` even though technically
    // these aren't boolean attributes (they are coerced to strings).
    
    ['contentEditable', 'draggable', 'spellCheck', 'value'].forEach(function (name) {
      properties[name] = new PropertyInfoRecord(name, BOOLEANISH_STRING, false, // mustUseProperty
      name.toLowerCase(), // attributeName
      null, // attributeNamespace
      false);
    }); // These are "enumerated" SVG attributes that accept "true" and "false".
    // In React, we let users pass `true` and `false` even though technically
    // these aren't boolean attributes (they are coerced to strings).
    // Since these are SVG attributes, their attribute names are case-sensitive.
    
    ['autoReverse', 'externalResourcesRequired', 'focusable', 'preserveAlpha'].forEach(function (name) {
      properties[name] = new PropertyInfoRecord(name, BOOLEANISH_STRING, false, // mustUseProperty
      name, // attributeName
      null, // attributeNamespace
      false);
    }); // These are HTML boolean attributes.
    
    ['allowFullScreen', 'async', // Note: there is a special case that prevents it from being written to the DOM
    // on the client side because the browsers are inconsistent. Instead we call focus().
    'autoFocus', 'autoPlay', 'controls', 'default', 'defer', 'disabled', 'disablePictureInPicture', 'formNoValidate', 'hidden', 'loop', 'noModule', 'noValidate', 'open', 'playsInline', 'readOnly', 'required', 'reversed', 'scoped', 'seamless', // Microdata
    'itemScope'].forEach(function (name) {
      properties[name] = new PropertyInfoRecord(name, BOOLEAN, false, // mustUseProperty
      name.toLowerCase(), // attributeName
      null, // attributeNamespace
      false);
    }); // These are the few React props that we set as DOM properties
    // rather than attributes. These are all booleans.
    
    ['checked', // Note: `option.selected` is not updated if `select.multiple` is
    // disabled with `removeAttribute`. We have special logic for handling this.
    'multiple', 'muted', 'selected'].forEach(function (name) {
      properties[name] = new PropertyInfoRecord(name, BOOLEAN, true, // mustUseProperty
      name, // attributeName
      null, // attributeNamespace
      false);
    }); // These are HTML attributes that are "overloaded booleans": they behave like
    // booleans, but can also accept a string value.
    
    ['capture', 'download'].forEach(function (name) {
      properties[name] = new PropertyInfoRecord(name, OVERLOADED_BOOLEAN, false, // mustUseProperty
      name, // attributeName
      null, // attributeNamespace
      false);
    }); // These are HTML attributes that must be positive numbers.
    
    ['cols', 'rows', 'size', 'span'].forEach(function (name) {
      properties[name] = new PropertyInfoRecord(name, POSITIVE_NUMERIC, false, // mustUseProperty
      name, // attributeName
      null, // attributeNamespace
      false);
    }); // These are HTML attributes that must be numbers.
    
    ['rowSpan', 'start'].forEach(function (name) {
      properties[name] = new PropertyInfoRecord(name, NUMERIC, false, // mustUseProperty
      name.toLowerCase(), // attributeName
      null, // attributeNamespace
      false);
    });
    var CAMELIZE = /[\-\:]([a-z])/g;
    
    var capitalize = function (token) {
      return token[1].toUpperCase();
    }; // This is a list of all SVG attributes that need special casing, namespacing,
    // or boolean value assignment. Regular attributes that just accept strings
    // and have the same names are omitted, just like in the HTML whitelist.
    // Some of these attributes can be hard to find. This list was created by
    // scrapping the MDN documentation.
    
    
    ['accent-height', 'alignment-baseline', 'arabic-form', 'baseline-shift', 'cap-height', 'clip-path', 'clip-rule', 'color-interpolation', 'color-interpolation-filters', 'color-profile', 'color-rendering', 'dominant-baseline', 'enable-background', 'fill-opacity', 'fill-rule', 'flood-color', 'flood-opacity', 'font-family', 'font-size', 'font-size-adjust', 'font-stretch', 'font-style', 'font-variant', 'font-weight', 'glyph-name', 'glyph-orientation-horizontal', 'glyph-orientation-vertical', 'horiz-adv-x', 'horiz-origin-x', 'image-rendering', 'letter-spacing', 'lighting-color', 'marker-end', 'marker-mid', 'marker-start', 'overline-position', 'overline-thickness', 'paint-order', 'panose-1', 'pointer-events', 'rendering-intent', 'shape-rendering', 'stop-color', 'stop-opacity', 'strikethrough-position', 'strikethrough-thickness', 'stroke-dasharray', 'stroke-dashoffset', 'stroke-linecap', 'stroke-linejoin', 'stroke-miterlimit', 'stroke-opacity', 'stroke-width', 'text-anchor', 'text-decoration', 'text-rendering', 'underline-position', 'underline-thickness', 'unicode-bidi', 'unicode-range', 'units-per-em', 'v-alphabetic', 'v-hanging', 'v-ideographic', 'v-mathematical', 'vector-effect', 'vert-adv-y', 'vert-origin-x', 'vert-origin-y', 'word-spacing', 'writing-mode', 'xmlns:xlink', 'x-height'].forEach(function (attributeName) {
      var name = attributeName.replace(CAMELIZE, capitalize);
      properties[name] = new PropertyInfoRecord(name, STRING, false, // mustUseProperty
      attributeName, null, // attributeNamespace
      false);
    }); // String SVG attributes with the xlink namespace.
    
    ['xlink:actuate', 'xlink:arcrole', 'xlink:role', 'xlink:show', 'xlink:title', 'xlink:type'].forEach(function (attributeName) {
      var name = attributeName.replace(CAMELIZE, capitalize);
      properties[name] = new PropertyInfoRecord(name, STRING, false, // mustUseProperty
      attributeName, 'http://www.w3.org/1999/xlink', false);
    }); // String SVG attributes with the xml namespace.
    
    ['xml:base', 'xml:lang', 'xml:space'].forEach(function (attributeName) {
      var name = attributeName.replace(CAMELIZE, capitalize);
      properties[name] = new PropertyInfoRecord(name, STRING, false, // mustUseProperty
      attributeName, 'http://www.w3.org/XML/1998/namespace', false);
    }); // These attribute exists both in HTML and SVG.
    // The attribute name is case-sensitive in SVG so we can't just use
    // the React name like we do for attributes that exist only in HTML.
    
    ['tabIndex', 'crossOrigin'].forEach(function (attributeName) {
      properties[attributeName] = new PropertyInfoRecord(attributeName, STRING, false, // mustUseProperty
      attributeName.toLowerCase(), // attributeName
      null, // attributeNamespace
      false);
    }); // These attributes accept URLs. These must not allow javascript: URLS.
    // These will also need to accept Trusted Types object in the future.
    
    var xlinkHref = 'xlinkHref';
    properties[xlinkHref] = new PropertyInfoRecord('xlinkHref', STRING, false, // mustUseProperty
    'xlink:href', 'http://www.w3.org/1999/xlink', true);
    ['src', 'href', 'action', 'formAction'].forEach(function (attributeName) {
      properties[attributeName] = new PropertyInfoRecord(attributeName, STRING, false, // mustUseProperty
      attributeName.toLowerCase(), // attributeName
      null, // attributeNamespace
      true);
    });
    
    var ReactDebugCurrentFrame$1 = null;
    
    {
      ReactDebugCurrentFrame$1 = ReactSharedInternals.ReactDebugCurrentFrame;
    } // A javascript: URL can contain leading C0 control or \u0020 SPACE,
    // and any newline or tab are filtered out as if they're not part of the URL.
    // https://url.spec.whatwg.org/#url-parsing
    // Tab or newline are defined as \r\n\t:
    // https://infra.spec.whatwg.org/#ascii-tab-or-newline
    // A C0 control is a code point in the range \u0000 NULL to \u001F
    // INFORMATION SEPARATOR ONE, inclusive:
    // https://infra.spec.whatwg.org/#c0-control-or-space
    
    /* eslint-disable max-len */
    
    
    var isJavaScriptProtocol = /^[\u0000-\u001F ]*j[\r\n\t]*a[\r\n\t]*v[\r\n\t]*a[\r\n\t]*s[\r\n\t]*c[\r\n\t]*r[\r\n\t]*i[\r\n\t]*p[\r\n\t]*t[\r\n\t]*\:/i;
    var didWarn = false;
    
    function sanitizeURL(url) {
      if (disableJavaScriptURLs) {
        (function () {
          if (!!isJavaScriptProtocol.test(url)) {
            {
              throw ReactError(Error("React has blocked a javascript: URL as a security precaution." + (ReactDebugCurrentFrame$1.getStackAddendum())));
            }
          }
        })();
      } else if ( true && !didWarn && isJavaScriptProtocol.test(url)) {
        didWarn = true;
        warning$1(false, 'A future version of React will block javascript: URLs as a security precaution. ' + 'Use event handlers instead if you can. If you need to generate unsafe HTML try ' + 'using dangerouslySetInnerHTML instead. React was passed %s.', JSON.stringify(url));
      }
    }
    
    // Flow does not allow string concatenation of most non-string types. To work
    // around this limitation, we use an opaque type that can only be obtained by
    // passing the value through getToStringValue first.
    function toString(value) {
      return '' + value;
    }
    function getToStringValue(value) {
      switch (typeof value) {
        case 'boolean':
        case 'number':
        case 'object':
        case 'string':
        case 'undefined':
          return value;
    
        default:
          // function, symbol are assigned as empty strings
          return '';
      }
    }
    /** Trusted value is a wrapper for "safe" values which can be assigned to DOM execution sinks. */
    
    /**
     * We allow passing objects with toString method as element attributes or in dangerouslySetInnerHTML
     * and we do validations that the value is safe. Once we do validation we want to use the validated
     * value instead of the object (because object.toString may return something else on next call).
     *
     * If application uses Trusted Types we don't stringify trusted values, but preserve them as objects.
     */
    var toStringOrTrustedType = toString;
    
    if (enableTrustedTypesIntegration && typeof trustedTypes !== 'undefined') {
      var isHTML = trustedTypes.isHTML;
      var isScript = trustedTypes.isScript;
      var isScriptURL = trustedTypes.isScriptURL; // TrustedURLs are deprecated and will be removed soon: https://github.com/WICG/trusted-types/pull/204
    
      var isURL = trustedTypes.isURL ? trustedTypes.isURL : function (value) {
        return false;
      };
    
      toStringOrTrustedType = function (value) {
        if (typeof value === 'object' && (isHTML(value) || isScript(value) || isScriptURL(value) || isURL(value))) {
          // Pass Trusted Types through.
          return value;
        }
    
        return toString(value);
      };
    }
    
    /**
     * Set attribute for a node. The attribute value can be either string or
     * Trusted value (if application uses Trusted Types).
     */
    function setAttribute(node, attributeName, attributeValue) {
      node.setAttribute(attributeName, attributeValue);
    }
    /**
     * Set attribute with namespace for a node. The attribute value can be either string or
     * Trusted value (if application uses Trusted Types).
     */
    
    function setAttributeNS(node, attributeNamespace, attributeName, attributeValue) {
      node.setAttributeNS(attributeNamespace, attributeName, attributeValue);
    }
    
    /**
     * Get the value for a property on a node. Only used in DEV for SSR validation.
     * The "expected" argument is used as a hint of what the expected value is.
     * Some properties have multiple equivalent values.
     */
    function getValueForProperty(node, name, expected, propertyInfo) {
      {
        if (propertyInfo.mustUseProperty) {
          var propertyName = propertyInfo.propertyName;
          return node[propertyName];
        } else {
          if (!disableJavaScriptURLs && propertyInfo.sanitizeURL) {
            // If we haven't fully disabled javascript: URLs, and if
            // the hydration is successful of a javascript: URL, we
            // still want to warn on the client.
            sanitizeURL('' + expected);
          }
    
          var attributeName = propertyInfo.attributeName;
          var stringValue = null;
    
          if (propertyInfo.type === OVERLOADED_BOOLEAN) {
            if (node.hasAttribute(attributeName)) {
              var value = node.getAttribute(attributeName);
    
              if (value === '') {
                return true;
              }
    
              if (shouldRemoveAttribute(name, expected, propertyInfo, false)) {
                return value;
              }
    
              if (value === '' + expected) {
                return expected;
              }
    
              return value;
            }
          } else if (node.hasAttribute(attributeName)) {
            if (shouldRemoveAttribute(name, expected, propertyInfo, false)) {
              // We had an attribute but shouldn't have had one, so read it
              // for the error message.
              return node.getAttribute(attributeName);
            }
    
            if (propertyInfo.type === BOOLEAN) {
              // If this was a boolean, it doesn't matter what the value is
              // the fact that we have it is the same as the expected.
              return expected;
            } // Even if this property uses a namespace we use getAttribute
            // because we assume its namespaced name is the same as our config.
            // To use getAttributeNS we need the local name which we don't have
            // in our config atm.
    
    
            stringValue = node.getAttribute(attributeName);
          }
    
          if (shouldRemoveAttribute(name, expected, propertyInfo, false)) {
            return stringValue === null ? expected : stringValue;
          } else if (stringValue === '' + expected) {
            return expected;
          } else {
            return stringValue;
          }
        }
      }
    }
    /**
     * Get the value for a attribute on a node. Only used in DEV for SSR validation.
     * The third argument is used as a hint of what the expected value is. Some
     * attributes have multiple equivalent values.
     */
    
    function getValueForAttribute(node, name, expected) {
      {
        if (!isAttributeNameSafe(name)) {
          return;
        }
    
        if (!node.hasAttribute(name)) {
          return expected === undefined ? undefined : null;
        }
    
        var value = node.getAttribute(name);
    
        if (value === '' + expected) {
          return expected;
        }
    
        return value;
      }
    }
    /**
     * Sets the value for a property on a node.
     *
     * @param {DOMElement} node
     * @param {string} name
     * @param {*} value
     */
    
    function setValueForProperty(node, name, value, isCustomComponentTag) {
      var propertyInfo = getPropertyInfo(name);
    
      if (shouldIgnoreAttribute(name, propertyInfo, isCustomComponentTag)) {
        return;
      }
    
      if (shouldRemoveAttribute(name, value, propertyInfo, isCustomComponentTag)) {
        value = null;
      } // If the prop isn't in the special list, treat it as a simple attribute.
    
    
      if (isCustomComponentTag || propertyInfo === null) {
        if (isAttributeNameSafe(name)) {
          var _attributeName = name;
    
          if (value === null) {
            node.removeAttribute(_attributeName);
          } else {
            setAttribute(node, _attributeName, toStringOrTrustedType(value));
          }
        }
    
        return;
      }
    
      var mustUseProperty = propertyInfo.mustUseProperty;
    
      if (mustUseProperty) {
        var propertyName = propertyInfo.propertyName;
    
        if (value === null) {
          var type = propertyInfo.type;
          node[propertyName] = type === BOOLEAN ? false : '';
        } else {
          // Contrary to `setAttribute`, object properties are properly
          // `toString`ed by IE8/9.
          node[propertyName] = value;
        }
    
        return;
      } // The rest are treated as attributes with special cases.
    
    
      var attributeName = propertyInfo.attributeName,
          attributeNamespace = propertyInfo.attributeNamespace;
    
      if (value === null) {
        node.removeAttribute(attributeName);
      } else {
        var _type = propertyInfo.type;
        var attributeValue;
    
        if (_type === BOOLEAN || _type === OVERLOADED_BOOLEAN && value === true) {
          // If attribute type is boolean, we know for sure it won't be an execution sink
          // and we won't require Trusted Type here.
          attributeValue = '';
        } else {
          // `setAttribute` with objects becomes only `[object]` in IE8/9,
          // ('' + value) makes it output the correct toString()-value.
          attributeValue = toStringOrTrustedType(value);
    
          if (propertyInfo.sanitizeURL) {
            sanitizeURL(attributeValue.toString());
          }
        }
    
        if (attributeNamespace) {
          setAttributeNS(node, attributeNamespace, attributeName, attributeValue);
        } else {
          setAttribute(node, attributeName, attributeValue);
        }
      }
    }
    
    var ReactDebugCurrentFrame$2 = null;
    var ReactControlledValuePropTypes = {
      checkPropTypes: null
    };
    
    {
      ReactDebugCurrentFrame$2 = ReactSharedInternals.ReactDebugCurrentFrame;
      var hasReadOnlyValue = {
        button: true,
        checkbox: true,
        image: true,
        hidden: true,
        radio: true,
        reset: true,
        submit: true
      };
      var propTypes = {
        value: function (props, propName, componentName) {
          if (hasReadOnlyValue[props.type] || props.onChange || props.readOnly || props.disabled || props[propName] == null || enableFlareAPI && props.listeners) {
            return null;
          }
    
          return new Error('You provided a `value` prop to a form field without an ' + '`onChange` handler. This will render a read-only field. If ' + 'the field should be mutable use `defaultValue`. Otherwise, ' + 'set either `onChange` or `readOnly`.');
        },
        checked: function (props, propName, componentName) {
          if (props.onChange || props.readOnly || props.disabled || props[propName] == null || enableFlareAPI && props.listeners) {
            return null;
          }
    
          return new Error('You provided a `checked` prop to a form field without an ' + '`onChange` handler. This will render a read-only field. If ' + 'the field should be mutable use `defaultChecked`. Otherwise, ' + 'set either `onChange` or `readOnly`.');
        }
      };
      /**
       * Provide a linked `value` attribute for controlled forms. You should not use
       * this outside of the ReactDOM controlled form components.
       */
    
      ReactControlledValuePropTypes.checkPropTypes = function (tagName, props) {
        checkPropTypes(propTypes, props, 'prop', tagName, ReactDebugCurrentFrame$2.getStackAddendum);
      };
    }
    
    function isCheckable(elem) {
      var type = elem.type;
      var nodeName = elem.nodeName;
      return nodeName && nodeName.toLowerCase() === 'input' && (type === 'checkbox' || type === 'radio');
    }
    
    function getTracker(node) {
      return node._valueTracker;
    }
    
    function detachTracker(node) {
      node._valueTracker = null;
    }
    
    function getValueFromNode(node) {
      var value = '';
    
      if (!node) {
        return value;
      }
    
      if (isCheckable(node)) {
        value = node.checked ? 'true' : 'false';
      } else {
        value = node.value;
      }
    
      return value;
    }
    
    function trackValueOnNode(node) {
      var valueField = isCheckable(node) ? 'checked' : 'value';
      var descriptor = Object.getOwnPropertyDescriptor(node.constructor.prototype, valueField);
      var currentValue = '' + node[valueField]; // if someone has already defined a value or Safari, then bail
      // and don't track value will cause over reporting of changes,
      // but it's better then a hard failure
      // (needed for certain tests that spyOn input values and Safari)
    
      if (node.hasOwnProperty(valueField) || typeof descriptor === 'undefined' || typeof descriptor.get !== 'function' || typeof descriptor.set !== 'function') {
        return;
      }
    
      var get = descriptor.get,
          set = descriptor.set;
      Object.defineProperty(node, valueField, {
        configurable: true,
        get: function () {
          return get.call(this);
        },
        set: function (value) {
          currentValue = '' + value;
          set.call(this, value);
        }
      }); // We could've passed this the first time
      // but it triggers a bug in IE11 and Edge 14/15.
      // Calling defineProperty() again should be equivalent.
      // https://github.com/facebook/react/issues/11768
    
      Object.defineProperty(node, valueField, {
        enumerable: descriptor.enumerable
      });
      var tracker = {
        getValue: function () {
          return currentValue;
        },
        setValue: function (value) {
          currentValue = '' + value;
        },
        stopTracking: function () {
          detachTracker(node);
          delete node[valueField];
        }
      };
      return tracker;
    }
    
    function track(node) {
      if (getTracker(node)) {
        return;
      } // TODO: Once it's just Fiber we can move this to node._wrapperState
    
    
      node._valueTracker = trackValueOnNode(node);
    }
    function updateValueIfChanged(node) {
      if (!node) {
        return false;
      }
    
      var tracker = getTracker(node); // if there is no tracker at this point it's unlikely
      // that trying again will succeed
    
      if (!tracker) {
        return true;
      }
    
      var lastValue = tracker.getValue();
      var nextValue = getValueFromNode(node);
    
      if (nextValue !== lastValue) {
        tracker.setValue(nextValue);
        return true;
      }
    
      return false;
    }
    
    // TODO: direct imports like some-package/src/* are bad. Fix me.
    var didWarnValueDefaultValue = false;
    var didWarnCheckedDefaultChecked = false;
    var didWarnControlledToUncontrolled = false;
    var didWarnUncontrolledToControlled = false;
    
    function isControlled(props) {
      var usesChecked = props.type === 'checkbox' || props.type === 'radio';
      return usesChecked ? props.checked != null : props.value != null;
    }
    /**
     * Implements an <input> host component that allows setting these optional
     * props: `checked`, `value`, `defaultChecked`, and `defaultValue`.
     *
     * If `checked` or `value` are not supplied (or null/undefined), user actions
     * that affect the checked state or value will trigger updates to the element.
     *
     * If they are supplied (and not null/undefined), the rendered element will not
     * trigger updates to the element. Instead, the props must change in order for
     * the rendered element to be updated.
     *
     * The rendered element will be initialized as unchecked (or `defaultChecked`)
     * with an empty value (or `defaultValue`).
     *
     * See http://www.w3.org/TR/2012/WD-html5-20121025/the-input-element.html
     */
    
    
    function getHostProps(element, props) {
      var node = element;
      var checked = props.checked;
    
      var hostProps = _assign({}, props, {
        defaultChecked: undefined,
        defaultValue: undefined,
        value: undefined,
        checked: checked != null ? checked : node._wrapperState.initialChecked
      });
    
      return hostProps;
    }
    function initWrapperState(element, props) {
      {
        ReactControlledValuePropTypes.checkPropTypes('input', props);
    
        if (props.checked !== undefined && props.defaultChecked !== undefined && !didWarnCheckedDefaultChecked) {
          warning$1(false, '%s contains an input of type %s with both checked and defaultChecked props. ' + 'Input elements must be either controlled or uncontrolled ' + '(specify either the checked prop, or the defaultChecked prop, but not ' + 'both). Decide between using a controlled or uncontrolled input ' + 'element and remove one of these props. More info: ' + 'https://fb.me/react-controlled-components', getCurrentFiberOwnerNameInDevOrNull() || 'A component', props.type);
          didWarnCheckedDefaultChecked = true;
        }
    
        if (props.value !== undefined && props.defaultValue !== undefined && !didWarnValueDefaultValue) {
          warning$1(false, '%s contains an input of type %s with both value and defaultValue props. ' + 'Input elements must be either controlled or uncontrolled ' + '(specify either the value prop, or the defaultValue prop, but not ' + 'both). Decide between using a controlled or uncontrolled input ' + 'element and remove one of these props. More info: ' + 'https://fb.me/react-controlled-components', getCurrentFiberOwnerNameInDevOrNull() || 'A component', props.type);
          didWarnValueDefaultValue = true;
        }
      }
    
      var node = element;
      var defaultValue = props.defaultValue == null ? '' : props.defaultValue;
      node._wrapperState = {
        initialChecked: props.checked != null ? props.checked : props.defaultChecked,
        initialValue: getToStringValue(props.value != null ? props.value : defaultValue),
        controlled: isControlled(props)
      };
    }
    function updateChecked(element, props) {
      var node = element;
      var checked = props.checked;
    
      if (checked != null) {
        setValueForProperty(node, 'checked', checked, false);
      }
    }
    function updateWrapper(element, props) {
      var node = element;
    
      {
        var controlled = isControlled(props);
    
        if (!node._wrapperState.controlled && controlled && !didWarnUncontrolledToControlled) {
          warning$1(false, 'A component is changing an uncontrolled input of type %s to be controlled. ' + 'Input elements should not switch from uncontrolled to controlled (or vice versa). ' + 'Decide between using a controlled or uncontrolled input ' + 'element for the lifetime of the component. More info: https://fb.me/react-controlled-components', props.type);
          didWarnUncontrolledToControlled = true;
        }
    
        if (node._wrapperState.controlled && !controlled && !didWarnControlledToUncontrolled) {
          warning$1(false, 'A component is changing a controlled input of type %s to be uncontrolled. ' + 'Input elements should not switch from controlled to uncontrolled (or vice versa). ' + 'Decide between using a controlled or uncontrolled input ' + 'element for the lifetime of the component. More info: https://fb.me/react-controlled-components', props.type);
          didWarnControlledToUncontrolled = true;
        }
      }
    
      updateChecked(element, props);
      var value = getToStringValue(props.value);
      var type = props.type;
    
      if (value != null) {
        if (type === 'number') {
          if (value === 0 && node.value === '' || // We explicitly want to coerce to number here if possible.
          // eslint-disable-next-line
          node.value != value) {
            node.value = toString(value);
          }
        } else if (node.value !== toString(value)) {
          node.value = toString(value);
        }
      } else if (type === 'submit' || type === 'reset') {
        // Submit/reset inputs need the attribute removed completely to avoid
        // blank-text buttons.
        node.removeAttribute('value');
        return;
      }
    
      if (disableInputAttributeSyncing) {
        // When not syncing the value attribute, React only assigns a new value
        // whenever the defaultValue React prop has changed. When not present,
        // React does nothing
        if (props.hasOwnProperty('defaultValue')) {
          setDefaultValue(node, props.type, getToStringValue(props.defaultValue));
        }
      } else {
        // When syncing the value attribute, the value comes from a cascade of
        // properties:
        //  1. The value React property
        //  2. The defaultValue React property
        //  3. Otherwise there should be no change
        if (props.hasOwnProperty('value')) {
          setDefaultValue(node, props.type, value);
        } else if (props.hasOwnProperty('defaultValue')) {
          setDefaultValue(node, props.type, getToStringValue(props.defaultValue));
        }
      }
    
      if (disableInputAttributeSyncing) {
        // When not syncing the checked attribute, the attribute is directly
        // controllable from the defaultValue React property. It needs to be
        // updated as new props come in.
        if (props.defaultChecked == null) {
          node.removeAttribute('checked');
        } else {
          node.defaultChecked = !!props.defaultChecked;
        }
      } else {
        // When syncing the checked attribute, it only changes when it needs
        // to be removed, such as transitioning from a checkbox into a text input
        if (props.checked == null && props.defaultChecked != null) {
          node.defaultChecked = !!props.defaultChecked;
        }
      }
    }
    function postMountWrapper(element, props, isHydrating) {
      var node = element; // Do not assign value if it is already set. This prevents user text input
      // from being lost during SSR hydration.
    
      if (props.hasOwnProperty('value') || props.hasOwnProperty('defaultValue')) {
        var type = props.type;
        var isButton = type === 'submit' || type === 'reset'; // Avoid setting value attribute on submit/reset inputs as it overrides the
        // default value provided by the browser. See: #12872
    
        if (isButton && (props.value === undefined || props.value === null)) {
          return;
        }
    
        var initialValue = toString(node._wrapperState.initialValue); // Do not assign value if it is already set. This prevents user text input
        // from being lost during SSR hydration.
    
        if (!isHydrating) {
          if (disableInputAttributeSyncing) {
            var value = getToStringValue(props.value); // When not syncing the value attribute, the value property points
            // directly to the React prop. Only assign it if it exists.
    
            if (value != null) {
              // Always assign on buttons so that it is possible to assign an
              // empty string to clear button text.
              //
              // Otherwise, do not re-assign the value property if is empty. This
              // potentially avoids a DOM write and prevents Firefox (~60.0.1) from
              // prematurely marking required inputs as invalid. Equality is compared
              // to the current value in case the browser provided value is not an
              // empty string.
              if (isButton || value !== node.value) {
                node.value = toString(value);
              }
            }
          } else {
            // When syncing the value attribute, the value property should use
            // the wrapperState._initialValue property. This uses:
            //
            //   1. The value React property when present
            //   2. The defaultValue React property when present
            //   3. An empty string
            if (initialValue !== node.value) {
              node.value = initialValue;
            }
          }
        }
    
        if (disableInputAttributeSyncing) {
          // When not syncing the value attribute, assign the value attribute
          // directly from the defaultValue React property (when present)
          var defaultValue = getToStringValue(props.defaultValue);
    
          if (defaultValue != null) {
            node.defaultValue = toString(defaultValue);
          }
        } else {
          // Otherwise, the value attribute is synchronized to the property,
          // so we assign defaultValue to the same thing as the value property
          // assignment step above.
          node.defaultValue = initialValue;
        }
      } // Normally, we'd just do `node.checked = node.checked` upon initial mount, less this bug
      // this is needed to work around a chrome bug where setting defaultChecked
      // will sometimes influence the value of checked (even after detachment).
      // Reference: https://bugs.chromium.org/p/chromium/issues/detail?id=608416
      // We need to temporarily unset name to avoid disrupting radio button groups.
    
    
      var name = node.name;
    
      if (name !== '') {
        node.name = '';
      }
    
      if (disableInputAttributeSyncing) {
        // When not syncing the checked attribute, the checked property
        // never gets assigned. It must be manually set. We don't want
        // to do this when hydrating so that existing user input isn't
        // modified
        if (!isHydrating) {
          updateChecked(element, props);
        } // Only assign the checked attribute if it is defined. This saves
        // a DOM write when controlling the checked attribute isn't needed
        // (text inputs, submit/reset)
    
    
        if (props.hasOwnProperty('defaultChecked')) {
          node.defaultChecked = !node.defaultChecked;
          node.defaultChecked = !!props.defaultChecked;
        }
      } else {
        // When syncing the checked attribute, both the checked property and
        // attribute are assigned at the same time using defaultChecked. This uses:
        //
        //   1. The checked React property when present
        //   2. The defaultChecked React property when present
        //   3. Otherwise, false
        node.defaultChecked = !node.defaultChecked;
        node.defaultChecked = !!node._wrapperState.initialChecked;
      }
    
      if (name !== '') {
        node.name = name;
      }
    }
    function restoreControlledState$1(element, props) {
      var node = element;
      updateWrapper(node, props);
      updateNamedCousins(node, props);
    }
    
    function updateNamedCousins(rootNode, props) {
      var name = props.name;
    
      if (props.type === 'radio' && name != null) {
        var queryRoot = rootNode;
    
        while (queryRoot.parentNode) {
          queryRoot = queryRoot.parentNode;
        } // If `rootNode.form` was non-null, then we could try `form.elements`,
        // but that sometimes behaves strangely in IE8. We could also try using
        // `form.getElementsByName`, but that will only return direct children
        // and won't include inputs that use the HTML5 `form=` attribute. Since
        // the input might not even be in a form. It might not even be in the
        // document. Let's just use the local `querySelectorAll` to ensure we don't
        // miss anything.
    
    
        var group = queryRoot.querySelectorAll('input[name=' + JSON.stringify('' + name) + '][type="radio"]');
    
        for (var i = 0; i < group.length; i++) {
          var otherNode = group[i];
    
          if (otherNode === rootNode || otherNode.form !== rootNode.form) {
            continue;
          } // This will throw if radio buttons rendered by different copies of React
          // and the same name are rendered into the same form (same as #1939).
          // That's probably okay; we don't support it just as we don't support
          // mixing React radio buttons with non-React ones.
    
    
          var otherProps = getFiberCurrentPropsFromNode$1(otherNode);
    
          (function () {
            if (!otherProps) {
              {
                throw ReactError(Error("ReactDOMInput: Mixing React and non-React radio inputs with the same `name` is not supported."));
              }
            }
          })(); // We need update the tracked value on the named cousin since the value
          // was changed but the input saw no event or value set
    
    
          updateValueIfChanged(otherNode); // If this is a controlled radio button group, forcing the input that
          // was previously checked to update will cause it to be come re-checked
          // as appropriate.
    
          updateWrapper(otherNode, otherProps);
        }
      }
    } // In Chrome, assigning defaultValue to certain input types triggers input validation.
    // For number inputs, the display value loses trailing decimal points. For email inputs,
    // Chrome raises "The specified value <x> is not a valid email address".
    //
    // Here we check to see if the defaultValue has actually changed, avoiding these problems
    // when the user is inputting text
    //
    // https://github.com/facebook/react/issues/7253
    
    
    function setDefaultValue(node, type, value) {
      if ( // Focused number inputs synchronize on blur. See ChangeEventPlugin.js
      type !== 'number' || node.ownerDocument.activeElement !== node) {
        if (value == null) {
          node.defaultValue = toString(node._wrapperState.initialValue);
        } else if (node.defaultValue !== toString(value)) {
          node.defaultValue = toString(value);
        }
      }
    }
    
    var didWarnSelectedSetOnOption = false;
    var didWarnInvalidChild = false;
    
    function flattenChildren(children) {
      var content = ''; // Flatten children. We'll warn if they are invalid
      // during validateProps() which runs for hydration too.
      // Note that this would throw on non-element objects.
      // Elements are stringified (which is normally irrelevant
      // but matters for <fbt>).
    
      React.Children.forEach(children, function (child) {
        if (child == null) {
          return;
        }
    
        content += child; // Note: we don't warn about invalid children here.
        // Instead, this is done separately below so that
        // it happens during the hydration codepath too.
      });
      return content;
    }
    /**
     * Implements an <option> host component that warns when `selected` is set.
     */
    
    
    function validateProps(element, props) {
      {
        // This mirrors the codepath above, but runs for hydration too.
        // Warn about invalid children here so that client and hydration are consistent.
        // TODO: this seems like it could cause a DEV-only throw for hydration
        // if children contains a non-element object. We should try to avoid that.
        if (typeof props.children === 'object' && props.children !== null) {
          React.Children.forEach(props.children, function (child) {
            if (child == null) {
              return;
            }
    
            if (typeof child === 'string' || typeof child === 'number') {
              return;
            }
    
            if (typeof child.type !== 'string') {
              return;
            }
    
            if (!didWarnInvalidChild) {
              didWarnInvalidChild = true;
              warning$1(false, 'Only strings and numbers are supported as <option> children.');
            }
          });
        } // TODO: Remove support for `selected` in <option>.
    
    
        if (props.selected != null && !didWarnSelectedSetOnOption) {
          warning$1(false, 'Use the `defaultValue` or `value` props on <select> instead of ' + 'setting `selected` on <option>.');
          didWarnSelectedSetOnOption = true;
        }
      }
    }
    function postMountWrapper$1(element, props) {
      // value="" should make a value attribute (#6219)
      if (props.value != null) {
        element.setAttribute('value', toString(getToStringValue(props.value)));
      }
    }
    function getHostProps$1(element, props) {
      var hostProps = _assign({
        children: undefined
      }, props);
    
      var content = flattenChildren(props.children);
    
      if (content) {
        hostProps.children = content;
      }
    
      return hostProps;
    }
    
    // TODO: direct imports like some-package/src/* are bad. Fix me.
    var didWarnValueDefaultValue$1;
    
    {
      didWarnValueDefaultValue$1 = false;
    }
    
    function getDeclarationErrorAddendum() {
      var ownerName = getCurrentFiberOwnerNameInDevOrNull();
    
      if (ownerName) {
        return '\n\nCheck the render method of `' + ownerName + '`.';
      }
    
      return '';
    }
    
    var valuePropNames = ['value', 'defaultValue'];
    /**
     * Validation function for `value` and `defaultValue`.
     */
    
    function checkSelectPropTypes(props) {
      ReactControlledValuePropTypes.checkPropTypes('select', props);
    
      for (var i = 0; i < valuePropNames.length; i++) {
        var propName = valuePropNames[i];
    
        if (props[propName] == null) {
          continue;
        }
    
        var isArray = Array.isArray(props[propName]);
    
        if (props.multiple && !isArray) {
          warning$1(false, 'The `%s` prop supplied to <select> must be an array if ' + '`multiple` is true.%s', propName, getDeclarationErrorAddendum());
        } else if (!props.multiple && isArray) {
          warning$1(false, 'The `%s` prop supplied to <select> must be a scalar ' + 'value if `multiple` is false.%s', propName, getDeclarationErrorAddendum());
        }
      }
    }
    
    function updateOptions(node, multiple, propValue, setDefaultSelected) {
      var options = node.options;
    
      if (multiple) {
        var selectedValues = propValue;
        var selectedValue = {};
    
        for (var i = 0; i < selectedValues.length; i++) {
          // Prefix to avoid chaos with special keys.
          selectedValue['$' + selectedValues[i]] = true;
        }
    
        for (var _i = 0; _i < options.length; _i++) {
          var selected = selectedValue.hasOwnProperty('$' + options[_i].value);
    
          if (options[_i].selected !== selected) {
            options[_i].selected = selected;
          }
    
          if (selected && setDefaultSelected) {
            options[_i].defaultSelected = true;
          }
        }
      } else {
        // Do not set `select.value` as exact behavior isn't consistent across all
        // browsers for all cases.
        var _selectedValue = toString(getToStringValue(propValue));
    
        var defaultSelected = null;
    
        for (var _i2 = 0; _i2 < options.length; _i2++) {
          if (options[_i2].value === _selectedValue) {
            options[_i2].selected = true;
    
            if (setDefaultSelected) {
              options[_i2].defaultSelected = true;
            }
    
            return;
          }
    
          if (defaultSelected === null && !options[_i2].disabled) {
            defaultSelected = options[_i2];
          }
        }
    
        if (defaultSelected !== null) {
          defaultSelected.selected = true;
        }
      }
    }
    /**
     * Implements a <select> host component that allows optionally setting the
     * props `value` and `defaultValue`. If `multiple` is false, the prop must be a
     * stringable. If `multiple` is true, the prop must be an array of stringables.
     *
     * If `value` is not supplied (or null/undefined), user actions that change the
     * selected option will trigger updates to the rendered options.
     *
     * If it is supplied (and not null/undefined), the rendered options will not
     * update in response to user actions. Instead, the `value` prop must change in
     * order for the rendered options to update.
     *
     * If `defaultValue` is provided, any options with the supplied values will be
     * selected.
     */
    
    
    function getHostProps$2(element, props) {
      return _assign({}, props, {
        value: undefined
      });
    }
    function initWrapperState$1(element, props) {
      var node = element;
    
      {
        checkSelectPropTypes(props);
      }
    
      node._wrapperState = {
        wasMultiple: !!props.multiple
      };
    
      {
        if (props.value !== undefined && props.defaultValue !== undefined && !didWarnValueDefaultValue$1) {
          warning$1(false, 'Select elements must be either controlled or uncontrolled ' + '(specify either the value prop, or the defaultValue prop, but not ' + 'both). Decide between using a controlled or uncontrolled select ' + 'element and remove one of these props. More info: ' + 'https://fb.me/react-controlled-components');
          didWarnValueDefaultValue$1 = true;
        }
      }
    }
    function postMountWrapper$2(element, props) {
      var node = element;
      node.multiple = !!props.multiple;
      var value = props.value;
    
      if (value != null) {
        updateOptions(node, !!props.multiple, value, false);
      } else if (props.defaultValue != null) {
        updateOptions(node, !!props.multiple, props.defaultValue, true);
      }
    }
    function postUpdateWrapper(element, props) {
      var node = element;
      var wasMultiple = node._wrapperState.wasMultiple;
      node._wrapperState.wasMultiple = !!props.multiple;
      var value = props.value;
    
      if (value != null) {
        updateOptions(node, !!props.multiple, value, false);
      } else if (wasMultiple !== !!props.multiple) {
        // For simplicity, reapply `defaultValue` if `multiple` is toggled.
        if (props.defaultValue != null) {
          updateOptions(node, !!props.multiple, props.defaultValue, true);
        } else {
          // Revert the select back to its default unselected state.
          updateOptions(node, !!props.multiple, props.multiple ? [] : '', false);
        }
      }
    }
    function restoreControlledState$2(element, props) {
      var node = element;
      var value = props.value;
    
      if (value != null) {
        updateOptions(node, !!props.multiple, value, false);
      }
    }
    
    var didWarnValDefaultVal = false;
    
    /**
     * Implements a <textarea> host component that allows setting `value`, and
     * `defaultValue`. This differs from the traditional DOM API because value is
     * usually set as PCDATA children.
     *
     * If `value` is not supplied (or null/undefined), user actions that affect the
     * value will trigger updates to the element.
     *
     * If `value` is supplied (and not null/undefined), the rendered element will
     * not trigger updates to the element. Instead, the `value` prop must change in
     * order for the rendered element to be updated.
     *
     * The rendered element will be initialized with an empty value, the prop
     * `defaultValue` if specified, or the children content (deprecated).
     */
    function getHostProps$3(element, props) {
      var node = element;
    
      (function () {
        if (!(props.dangerouslySetInnerHTML == null)) {
          {
            throw ReactError(Error("`dangerouslySetInnerHTML` does not make sense on <textarea>."));
          }
        }
      })(); // Always set children to the same thing. In IE9, the selection range will
      // get reset if `textContent` is mutated.  We could add a check in setTextContent
      // to only set the value if/when the value differs from the node value (which would
      // completely solve this IE9 bug), but Sebastian+Sophie seemed to like this
      // solution. The value can be a boolean or object so that's why it's forced
      // to be a string.
    
    
      var hostProps = _assign({}, props, {
        value: undefined,
        defaultValue: undefined,
        children: toString(node._wrapperState.initialValue)
      });
    
      return hostProps;
    }
    function initWrapperState$2(element, props) {
      var node = element;
    
      {
        ReactControlledValuePropTypes.checkPropTypes('textarea', props);
    
        if (props.value !== undefined && props.defaultValue !== undefined && !didWarnValDefaultVal) {
          warning$1(false, '%s contains a textarea with both value and defaultValue props. ' + 'Textarea elements must be either controlled or uncontrolled ' + '(specify either the value prop, or the defaultValue prop, but not ' + 'both). Decide between using a controlled or uncontrolled textarea ' + 'and remove one of these props. More info: ' + 'https://fb.me/react-controlled-components', getCurrentFiberOwnerNameInDevOrNull() || 'A component');
          didWarnValDefaultVal = true;
        }
      }
    
      var initialValue = props.value; // Only bother fetching default value if we're going to use it
    
      if (initialValue == null) {
        var defaultValue = props.defaultValue; // TODO (yungsters): Remove support for children content in <textarea>.
    
        var children = props.children;
    
        if (children != null) {
          {
            warning$1(false, 'Use the `defaultValue` or `value` props instead of setting ' + 'children on <textarea>.');
          }
    
          (function () {
            if (!(defaultValue == null)) {
              {
                throw ReactError(Error("If you supply `defaultValue` on a <textarea>, do not pass children."));
              }
            }
          })();
    
          if (Array.isArray(children)) {
            (function () {
              if (!(children.length <= 1)) {
                {
                  throw ReactError(Error("<textarea> can only have at most one child."));
                }
              }
            })();
    
            children = children[0];
          }
    
          defaultValue = children;
        }
    
        if (defaultValue == null) {
          defaultValue = '';
        }
    
        initialValue = defaultValue;
      }
    
      node._wrapperState = {
        initialValue: getToStringValue(initialValue)
      };
    }
    function updateWrapper$1(element, props) {
      var node = element;
      var value = getToStringValue(props.value);
      var defaultValue = getToStringValue(props.defaultValue);
    
      if (value != null) {
        // Cast `value` to a string to ensure the value is set correctly. While
        // browsers typically do this as necessary, jsdom doesn't.
        var newValue = toString(value); // To avoid side effects (such as losing text selection), only set value if changed
    
        if (newValue !== node.value) {
          node.value = newValue;
        }
    
        if (props.defaultValue == null && node.defaultValue !== newValue) {
          node.defaultValue = newValue;
        }
      }
    
      if (defaultValue != null) {
        node.defaultValue = toString(defaultValue);
      }
    }
    function postMountWrapper$3(element, props) {
      var node = element; // This is in postMount because we need access to the DOM node, which is not
      // available until after the component has mounted.
    
      var textContent = node.textContent; // Only set node.value if textContent is equal to the expected
      // initial value. In IE10/IE11 there is a bug where the placeholder attribute
      // will populate textContent as well.
      // https://developer.microsoft.com/microsoft-edge/platform/issues/101525/
    
      if (textContent === node._wrapperState.initialValue) {
        if (textContent !== '' && textContent !== null) {
          node.value = textContent;
        }
      }
    }
    function restoreControlledState$3(element, props) {
      // DOM component is still mounted; update
      updateWrapper$1(element, props);
    }
    
    var HTML_NAMESPACE$1 = 'http://www.w3.org/1999/xhtml';
    var MATH_NAMESPACE = 'http://www.w3.org/1998/Math/MathML';
    var SVG_NAMESPACE = 'http://www.w3.org/2000/svg';
    var Namespaces = {
      html: HTML_NAMESPACE$1,
      mathml: MATH_NAMESPACE,
      svg: SVG_NAMESPACE
    }; // Assumes there is no parent namespace.
    
    function getIntrinsicNamespace(type) {
      switch (type) {
        case 'svg':
          return SVG_NAMESPACE;
    
        case 'math':
          return MATH_NAMESPACE;
    
        default:
          return HTML_NAMESPACE$1;
      }
    }
    function getChildNamespace(parentNamespace, type) {
      if (parentNamespace == null || parentNamespace === HTML_NAMESPACE$1) {
        // No (or default) parent namespace: potential entry point.
        return getIntrinsicNamespace(type);
      }
    
      if (parentNamespace === SVG_NAMESPACE && type === 'foreignObject') {
        // We're leaving SVG.
        return HTML_NAMESPACE$1;
      } // By default, pass namespace below.
    
    
      return parentNamespace;
    }
    
    /* globals MSApp */
    
    /**
     * Create a function which has 'unsafe' privileges (required by windows8 apps)
     */
    var createMicrosoftUnsafeLocalFunction = function (func) {
      if (typeof MSApp !== 'undefined' && MSApp.execUnsafeLocalFunction) {
        return function (arg0, arg1, arg2, arg3) {
          MSApp.execUnsafeLocalFunction(function () {
            return func(arg0, arg1, arg2, arg3);
          });
        };
      } else {
        return func;
      }
    };
    
    var reusableSVGContainer;
    /**
     * Set the innerHTML property of a node
     *
     * @param {DOMElement} node
     * @param {string} html
     * @internal
     */
    
    var setInnerHTML = createMicrosoftUnsafeLocalFunction(function (node, html) {
      if (node.namespaceURI === Namespaces.svg) {
        {
          if (enableTrustedTypesIntegration) {
            // TODO: reconsider the text of this warning and when it should show
            // before enabling the feature flag.
            !(typeof trustedTypes === 'undefined') ? warning$1(false, "Using 'dangerouslySetInnerHTML' in an svg element with " + 'Trusted Types enabled in an Internet Explorer will cause ' + 'the trusted value to be converted to string. Assigning string ' + "to 'innerHTML' will throw an error if Trusted Types are enforced. " + "You can try to wrap your svg element inside a div and use 'dangerouslySetInnerHTML' " + 'on the enclosing div instead.') : void 0;
          }
        }
    
        if (!('innerHTML' in node)) {
          // IE does not have innerHTML for SVG nodes, so instead we inject the
          // new markup in a temp node and then move the child nodes across into
          // the target node
          reusableSVGContainer = reusableSVGContainer || document.createElement('div');
          reusableSVGContainer.innerHTML = '<svg>' + html.valueOf().toString() + '</svg>';
          var svgNode = reusableSVGContainer.firstChild;
    
          while (node.firstChild) {
            node.removeChild(node.firstChild);
          }
    
          while (svgNode.firstChild) {
            node.appendChild(svgNode.firstChild);
          }
    
          return;
        }
      }
    
      node.innerHTML = html;
    });
    
    /**
     * HTML nodeType values that represent the type of the node
     */
    var ELEMENT_NODE = 1;
    var TEXT_NODE = 3;
    var COMMENT_NODE = 8;
    var DOCUMENT_NODE = 9;
    var DOCUMENT_FRAGMENT_NODE = 11;
    
    /**
     * Set the textContent property of a node. For text updates, it's faster
     * to set the `nodeValue` of the Text node directly instead of using
     * `.textContent` which will remove the existing node and create a new one.
     *
     * @param {DOMElement} node
     * @param {string} text
     * @internal
     */
    
    var setTextContent = function (node, text) {
      if (text) {
        var firstChild = node.firstChild;
    
        if (firstChild && firstChild === node.lastChild && firstChild.nodeType === TEXT_NODE) {
          firstChild.nodeValue = text;
          return;
        }
      }
    
      node.textContent = text;
    };
    
    // Do not use the below two methods directly!
    // Instead use constants exported from DOMTopLevelEventTypes in ReactDOM.
    // (It is the only module that is allowed to access these methods.)
    function unsafeCastStringToDOMTopLevelType(topLevelType) {
      return topLevelType;
    }
    function unsafeCastDOMTopLevelTypeToString(topLevelType) {
      return topLevelType;
    }
    
    /**
     * Generate a mapping of standard vendor prefixes using the defined style property and event name.
     *
     * @param {string} styleProp
     * @param {string} eventName
     * @returns {object}
     */
    
    function makePrefixMap(styleProp, eventName) {
      var prefixes = {};
      prefixes[styleProp.toLowerCase()] = eventName.toLowerCase();
      prefixes['Webkit' + styleProp] = 'webkit' + eventName;
      prefixes['Moz' + styleProp] = 'moz' + eventName;
      return prefixes;
    }
    /**
     * A list of event names to a configurable list of vendor prefixes.
     */
    
    
    var vendorPrefixes = {
      animationend: makePrefixMap('Animation', 'AnimationEnd'),
      animationiteration: makePrefixMap('Animation', 'AnimationIteration'),
      animationstart: makePrefixMap('Animation', 'AnimationStart'),
      transitionend: makePrefixMap('Transition', 'TransitionEnd')
    };
    /**
     * Event names that have already been detected and prefixed (if applicable).
     */
    
    var prefixedEventNames = {};
    /**
     * Element to check for prefixes on.
     */
    
    var style = {};
    /**
     * Bootstrap if a DOM exists.
     */
    
    if (canUseDOM) {
      style = document.createElement('div').style; // On some platforms, in particular some releases of Android 4.x,
      // the un-prefixed "animation" and "transition" properties are defined on the
      // style object but the events that fire will still be prefixed, so we need
      // to check if the un-prefixed events are usable, and if not remove them from the map.
    
      if (!('AnimationEvent' in window)) {
        delete vendorPrefixes.animationend.animation;
        delete vendorPrefixes.animationiteration.animation;
        delete vendorPrefixes.animationstart.animation;
      } // Same as above
    
    
      if (!('TransitionEvent' in window)) {
        delete vendorPrefixes.transitionend.transition;
      }
    }
    /**
     * Attempts to determine the correct vendor prefixed event name.
     *
     * @param {string} eventName
     * @returns {string}
     */
    
    
    function getVendorPrefixedEventName(eventName) {
      if (prefixedEventNames[eventName]) {
        return prefixedEventNames[eventName];
      } else if (!vendorPrefixes[eventName]) {
        return eventName;
      }
    
      var prefixMap = vendorPrefixes[eventName];
    
      for (var styleProp in prefixMap) {
        if (prefixMap.hasOwnProperty(styleProp) && styleProp in style) {
          return prefixedEventNames[eventName] = prefixMap[styleProp];
        }
      }
    
      return eventName;
    }
    
    /**
     * To identify top level events in ReactDOM, we use constants defined by this
     * module. This is the only module that uses the unsafe* methods to express
     * that the constants actually correspond to the browser event names. This lets
     * us save some bundle size by avoiding a top level type -> event name map.
     * The rest of ReactDOM code should import top level types from this file.
     */
    
    var TOP_ABORT = unsafeCastStringToDOMTopLevelType('abort');
    var TOP_ANIMATION_END = unsafeCastStringToDOMTopLevelType(getVendorPrefixedEventName('animationend'));
    var TOP_ANIMATION_ITERATION = unsafeCastStringToDOMTopLevelType(getVendorPrefixedEventName('animationiteration'));
    var TOP_ANIMATION_START = unsafeCastStringToDOMTopLevelType(getVendorPrefixedEventName('animationstart'));
    var TOP_BLUR = unsafeCastStringToDOMTopLevelType('blur');
    var TOP_CAN_PLAY = unsafeCastStringToDOMTopLevelType('canplay');
    var TOP_CAN_PLAY_THROUGH = unsafeCastStringToDOMTopLevelType('canplaythrough');
    var TOP_CANCEL = unsafeCastStringToDOMTopLevelType('cancel');
    var TOP_CHANGE = unsafeCastStringToDOMTopLevelType('change');
    var TOP_CLICK = unsafeCastStringToDOMTopLevelType('click');
    var TOP_CLOSE = unsafeCastStringToDOMTopLevelType('close');
    var TOP_COMPOSITION_END = unsafeCastStringToDOMTopLevelType('compositionend');
    var TOP_COMPOSITION_START = unsafeCastStringToDOMTopLevelType('compositionstart');
    var TOP_COMPOSITION_UPDATE = unsafeCastStringToDOMTopLevelType('compositionupdate');
    var TOP_CONTEXT_MENU = unsafeCastStringToDOMTopLevelType('contextmenu');
    var TOP_COPY = unsafeCastStringToDOMTopLevelType('copy');
    var TOP_CUT = unsafeCastStringToDOMTopLevelType('cut');
    var TOP_DOUBLE_CLICK = unsafeCastStringToDOMTopLevelType('dblclick');
    var TOP_AUX_CLICK = unsafeCastStringToDOMTopLevelType('auxclick');
    var TOP_DRAG = unsafeCastStringToDOMTopLevelType('drag');
    var TOP_DRAG_END = unsafeCastStringToDOMTopLevelType('dragend');
    var TOP_DRAG_ENTER = unsafeCastStringToDOMTopLevelType('dragenter');
    var TOP_DRAG_EXIT = unsafeCastStringToDOMTopLevelType('dragexit');
    var TOP_DRAG_LEAVE = unsafeCastStringToDOMTopLevelType('dragleave');
    var TOP_DRAG_OVER = unsafeCastStringToDOMTopLevelType('dragover');
    var TOP_DRAG_START = unsafeCastStringToDOMTopLevelType('dragstart');
    var TOP_DROP = unsafeCastStringToDOMTopLevelType('drop');
    var TOP_DURATION_CHANGE = unsafeCastStringToDOMTopLevelType('durationchange');
    var TOP_EMPTIED = unsafeCastStringToDOMTopLevelType('emptied');
    var TOP_ENCRYPTED = unsafeCastStringToDOMTopLevelType('encrypted');
    var TOP_ENDED = unsafeCastStringToDOMTopLevelType('ended');
    var TOP_ERROR = unsafeCastStringToDOMTopLevelType('error');
    var TOP_FOCUS = unsafeCastStringToDOMTopLevelType('focus');
    var TOP_GOT_POINTER_CAPTURE = unsafeCastStringToDOMTopLevelType('gotpointercapture');
    var TOP_INPUT = unsafeCastStringToDOMTopLevelType('input');
    var TOP_INVALID = unsafeCastStringToDOMTopLevelType('invalid');
    var TOP_KEY_DOWN = unsafeCastStringToDOMTopLevelType('keydown');
    var TOP_KEY_PRESS = unsafeCastStringToDOMTopLevelType('keypress');
    var TOP_KEY_UP = unsafeCastStringToDOMTopLevelType('keyup');
    var TOP_LOAD = unsafeCastStringToDOMTopLevelType('load');
    var TOP_LOAD_START = unsafeCastStringToDOMTopLevelType('loadstart');
    var TOP_LOADED_DATA = unsafeCastStringToDOMTopLevelType('loadeddata');
    var TOP_LOADED_METADATA = unsafeCastStringToDOMTopLevelType('loadedmetadata');
    var TOP_LOST_POINTER_CAPTURE = unsafeCastStringToDOMTopLevelType('lostpointercapture');
    var TOP_MOUSE_DOWN = unsafeCastStringToDOMTopLevelType('mousedown');
    var TOP_MOUSE_MOVE = unsafeCastStringToDOMTopLevelType('mousemove');
    var TOP_MOUSE_OUT = unsafeCastStringToDOMTopLevelType('mouseout');
    var TOP_MOUSE_OVER = unsafeCastStringToDOMTopLevelType('mouseover');
    var TOP_MOUSE_UP = unsafeCastStringToDOMTopLevelType('mouseup');
    var TOP_PASTE = unsafeCastStringToDOMTopLevelType('paste');
    var TOP_PAUSE = unsafeCastStringToDOMTopLevelType('pause');
    var TOP_PLAY = unsafeCastStringToDOMTopLevelType('play');
    var TOP_PLAYING = unsafeCastStringToDOMTopLevelType('playing');
    var TOP_POINTER_CANCEL = unsafeCastStringToDOMTopLevelType('pointercancel');
    var TOP_POINTER_DOWN = unsafeCastStringToDOMTopLevelType('pointerdown');
    
    
    var TOP_POINTER_MOVE = unsafeCastStringToDOMTopLevelType('pointermove');
    var TOP_POINTER_OUT = unsafeCastStringToDOMTopLevelType('pointerout');
    var TOP_POINTER_OVER = unsafeCastStringToDOMTopLevelType('pointerover');
    var TOP_POINTER_UP = unsafeCastStringToDOMTopLevelType('pointerup');
    var TOP_PROGRESS = unsafeCastStringToDOMTopLevelType('progress');
    var TOP_RATE_CHANGE = unsafeCastStringToDOMTopLevelType('ratechange');
    var TOP_RESET = unsafeCastStringToDOMTopLevelType('reset');
    var TOP_SCROLL = unsafeCastStringToDOMTopLevelType('scroll');
    var TOP_SEEKED = unsafeCastStringToDOMTopLevelType('seeked');
    var TOP_SEEKING = unsafeCastStringToDOMTopLevelType('seeking');
    var TOP_SELECTION_CHANGE = unsafeCastStringToDOMTopLevelType('selectionchange');
    var TOP_STALLED = unsafeCastStringToDOMTopLevelType('stalled');
    var TOP_SUBMIT = unsafeCastStringToDOMTopLevelType('submit');
    var TOP_SUSPEND = unsafeCastStringToDOMTopLevelType('suspend');
    var TOP_TEXT_INPUT = unsafeCastStringToDOMTopLevelType('textInput');
    var TOP_TIME_UPDATE = unsafeCastStringToDOMTopLevelType('timeupdate');
    var TOP_TOGGLE = unsafeCastStringToDOMTopLevelType('toggle');
    var TOP_TOUCH_CANCEL = unsafeCastStringToDOMTopLevelType('touchcancel');
    var TOP_TOUCH_END = unsafeCastStringToDOMTopLevelType('touchend');
    var TOP_TOUCH_MOVE = unsafeCastStringToDOMTopLevelType('touchmove');
    var TOP_TOUCH_START = unsafeCastStringToDOMTopLevelType('touchstart');
    var TOP_TRANSITION_END = unsafeCastStringToDOMTopLevelType(getVendorPrefixedEventName('transitionend'));
    var TOP_VOLUME_CHANGE = unsafeCastStringToDOMTopLevelType('volumechange');
    var TOP_WAITING = unsafeCastStringToDOMTopLevelType('waiting');
    var TOP_WHEEL = unsafeCastStringToDOMTopLevelType('wheel'); // List of events that need to be individually attached to media elements.
    // Note that events in this list will *not* be listened to at the top level
    // unless they're explicitly whitelisted in `ReactBrowserEventEmitter.listenTo`.
    
    var mediaEventTypes = [TOP_ABORT, TOP_CAN_PLAY, TOP_CAN_PLAY_THROUGH, TOP_DURATION_CHANGE, TOP_EMPTIED, TOP_ENCRYPTED, TOP_ENDED, TOP_ERROR, TOP_LOADED_DATA, TOP_LOADED_METADATA, TOP_LOAD_START, TOP_PAUSE, TOP_PLAY, TOP_PLAYING, TOP_PROGRESS, TOP_RATE_CHANGE, TOP_SEEKED, TOP_SEEKING, TOP_STALLED, TOP_SUSPEND, TOP_TIME_UPDATE, TOP_VOLUME_CHANGE, TOP_WAITING];
    function getRawEventName(topLevelType) {
      return unsafeCastDOMTopLevelTypeToString(topLevelType);
    }
    
    var attemptSynchronousHydration;
    function setAttemptSynchronousHydration(fn) {
      attemptSynchronousHydration = fn;
    } // TODO: Upgrade this definition once we're on a newer version of Flow that
    // has this definition built-in.
    
    var hasScheduledReplayAttempt = false; // The queue of discrete events to be replayed.
    
    var queuedDiscreteEvents = []; // Indicates if any continuous event targets are non-null for early bailout.
    
    // if the last target was dehydrated.
    
    var queuedFocus = null;
    var queuedDrag = null;
    var queuedMouse = null; // For pointer events there can be one latest event per pointerId.
    
    var queuedPointers = new Map();
    var queuedPointerCaptures = new Map(); // We could consider replaying selectionchange and touchmoves too.
    
    function hasQueuedDiscreteEvents() {
      return queuedDiscreteEvents.length > 0;
    }
    
    var discreteReplayableEvents = [TOP_MOUSE_DOWN, TOP_MOUSE_UP, TOP_TOUCH_CANCEL, TOP_TOUCH_END, TOP_TOUCH_START, TOP_AUX_CLICK, TOP_DOUBLE_CLICK, TOP_POINTER_CANCEL, TOP_POINTER_DOWN, TOP_POINTER_UP, TOP_DRAG_END, TOP_DRAG_START, TOP_DROP, TOP_COMPOSITION_END, TOP_COMPOSITION_START, TOP_KEY_DOWN, TOP_KEY_PRESS, TOP_KEY_UP, TOP_INPUT, TOP_TEXT_INPUT, TOP_CLOSE, TOP_CANCEL, TOP_COPY, TOP_CUT, TOP_PASTE, TOP_CLICK, TOP_CHANGE, TOP_CONTEXT_MENU, TOP_RESET, TOP_SUBMIT];
    var continuousReplayableEvents = [TOP_FOCUS, TOP_BLUR, TOP_DRAG_ENTER, TOP_DRAG_LEAVE, TOP_MOUSE_OVER, TOP_MOUSE_OUT, TOP_POINTER_OVER, TOP_POINTER_OUT, TOP_GOT_POINTER_CAPTURE, TOP_LOST_POINTER_CAPTURE];
    function isReplayableDiscreteEvent(eventType) {
      return discreteReplayableEvents.indexOf(eventType) > -1;
    }
    
    function trapReplayableEvent(topLevelType, document, listeningSet) {
      listenToTopLevel(topLevelType, document, listeningSet);
    
      if (enableFlareAPI) {
        // Trap events for the responder system.
        var passiveEventKey = unsafeCastDOMTopLevelTypeToString(topLevelType) + '_passive';
    
        if (!listeningSet.has(passiveEventKey)) {
          trapEventForResponderEventSystem(document, topLevelType, true);
          listeningSet.add(passiveEventKey);
        } // TODO: This listens to all events as active which might have
        // undesirable effects. It's also unnecessary to have both
        // passive and active listeners. Instead, we could start with
        // a passive and upgrade it to an active one if needed.
        // For replaying purposes the active is never needed since we
        // currently don't preventDefault.
    
    
        var activeEventKey = unsafeCastDOMTopLevelTypeToString(topLevelType) + '_active';
    
        if (!listeningSet.has(activeEventKey)) {
          trapEventForResponderEventSystem(document, topLevelType, false);
          listeningSet.add(activeEventKey);
        }
      }
    }
    
    function eagerlyTrapReplayableEvents(document) {
      var listeningSet = getListeningSetForElement(document); // Discrete
    
      discreteReplayableEvents.forEach(function (topLevelType) {
        trapReplayableEvent(topLevelType, document, listeningSet);
      }); // Continuous
    
      continuousReplayableEvents.forEach(function (topLevelType) {
        trapReplayableEvent(topLevelType, document, listeningSet);
      });
    }
    
    function createQueuedReplayableEvent(blockedOn, topLevelType, eventSystemFlags, nativeEvent) {
      return {
        blockedOn: blockedOn,
        topLevelType: topLevelType,
        eventSystemFlags: eventSystemFlags | IS_REPLAYED,
        nativeEvent: nativeEvent
      };
    }
    
    function queueDiscreteEvent(blockedOn, topLevelType, eventSystemFlags, nativeEvent) {
      var queuedEvent = createQueuedReplayableEvent(blockedOn, topLevelType, eventSystemFlags, nativeEvent);
      queuedDiscreteEvents.push(queuedEvent);
    
      if (enableSelectiveHydration) {
        if (queuedDiscreteEvents.length === 1) {
          // If this was the first discrete event, we might be able to
          // synchronously unblock it so that preventDefault still works.
          while (queuedEvent.blockedOn !== null) {
            var _fiber = getInstanceFromNode$1(queuedEvent.blockedOn);
    
            if (_fiber === null) {
              break;
            }
    
            attemptSynchronousHydration(_fiber);
    
            if (queuedEvent.blockedOn === null) {
              // We got unblocked by hydration. Let's try again.
              replayUnblockedEvents(); // If we're reblocked, on an inner boundary, we might need
              // to attempt hydrating that one.
    
              continue;
            } else {
              // We're still blocked from hydation, we have to give up
              // and replay later.
              break;
            }
          }
        }
      }
    } // Resets the replaying for this type of continuous event to no event.
    
    function clearIfContinuousEvent(topLevelType, nativeEvent) {
      switch (topLevelType) {
        case TOP_FOCUS:
        case TOP_BLUR:
          queuedFocus = null;
          break;
    
        case TOP_DRAG_ENTER:
        case TOP_DRAG_LEAVE:
          queuedDrag = null;
          break;
    
        case TOP_MOUSE_OVER:
        case TOP_MOUSE_OUT:
          queuedMouse = null;
          break;
    
        case TOP_POINTER_OVER:
        case TOP_POINTER_OUT:
          {
            var pointerId = nativeEvent.pointerId;
            queuedPointers.delete(pointerId);
            break;
          }
    
        case TOP_GOT_POINTER_CAPTURE:
        case TOP_LOST_POINTER_CAPTURE:
          {
            var _pointerId = nativeEvent.pointerId;
            queuedPointerCaptures.delete(_pointerId);
            break;
          }
      }
    }
    
    function accumulateOrCreateQueuedReplayableEvent(existingQueuedEvent, blockedOn, topLevelType, eventSystemFlags, nativeEvent) {
      if (existingQueuedEvent === null || existingQueuedEvent.nativeEvent !== nativeEvent) {
        return createQueuedReplayableEvent(blockedOn, topLevelType, eventSystemFlags, nativeEvent);
      } // If we have already queued this exact event, then it's because
      // the different event systems have different DOM event listeners.
      // We can accumulate the flags and store a single event to be
      // replayed.
    
    
      existingQueuedEvent.eventSystemFlags |= eventSystemFlags;
      return existingQueuedEvent;
    }
    
    function queueIfContinuousEvent(blockedOn, topLevelType, eventSystemFlags, nativeEvent) {
      // These set relatedTarget to null because the replayed event will be treated as if we
      // moved from outside the window (no target) onto the target once it hydrates.
      // Instead of mutating we could clone the event.
      switch (topLevelType) {
        case TOP_FOCUS:
          {
            var focusEvent = nativeEvent;
            queuedFocus = accumulateOrCreateQueuedReplayableEvent(queuedFocus, blockedOn, topLevelType, eventSystemFlags, focusEvent);
            return true;
          }
    
        case TOP_DRAG_ENTER:
          {
            var dragEvent = nativeEvent;
            queuedDrag = accumulateOrCreateQueuedReplayableEvent(queuedDrag, blockedOn, topLevelType, eventSystemFlags, dragEvent);
            return true;
          }
    
        case TOP_MOUSE_OVER:
          {
            var mouseEvent = nativeEvent;
            queuedMouse = accumulateOrCreateQueuedReplayableEvent(queuedMouse, blockedOn, topLevelType, eventSystemFlags, mouseEvent);
            return true;
          }
    
        case TOP_POINTER_OVER:
          {
            var pointerEvent = nativeEvent;
            var pointerId = pointerEvent.pointerId;
            queuedPointers.set(pointerId, accumulateOrCreateQueuedReplayableEvent(queuedPointers.get(pointerId) || null, blockedOn, topLevelType, eventSystemFlags, pointerEvent));
            return true;
          }
    
        case TOP_GOT_POINTER_CAPTURE:
          {
            var _pointerEvent = nativeEvent;
            var _pointerId2 = _pointerEvent.pointerId;
            queuedPointerCaptures.set(_pointerId2, accumulateOrCreateQueuedReplayableEvent(queuedPointerCaptures.get(_pointerId2) || null, blockedOn, topLevelType, eventSystemFlags, _pointerEvent));
            return true;
          }
      }
    
      return false;
    }
    
    function attemptReplayQueuedEvent(queuedEvent) {
      if (queuedEvent.blockedOn !== null) {
        return false;
      }
    
      var nextBlockedOn = attemptToDispatchEvent(queuedEvent.topLevelType, queuedEvent.eventSystemFlags, queuedEvent.nativeEvent);
    
      if (nextBlockedOn !== null) {
        // We're still blocked. Try again later.
        queuedEvent.blockedOn = nextBlockedOn;
        return false;
      }
    
      return true;
    }
    
    function attemptReplayQueuedEventInMap(queuedEvent, key, map) {
      if (attemptReplayQueuedEvent(queuedEvent)) {
        map.delete(key);
      }
    }
    
    function replayUnblockedEvents() {
      hasScheduledReplayAttempt = false; // First replay discrete events.
    
      while (queuedDiscreteEvents.length > 0) {
        var nextDiscreteEvent = queuedDiscreteEvents[0];
    
        if (nextDiscreteEvent.blockedOn !== null) {
          // We're still blocked.
          break;
        }
    
        var nextBlockedOn = attemptToDispatchEvent(nextDiscreteEvent.topLevelType, nextDiscreteEvent.eventSystemFlags, nextDiscreteEvent.nativeEvent);
    
        if (nextBlockedOn !== null) {
          // We're still blocked. Try again later.
          nextDiscreteEvent.blockedOn = nextBlockedOn;
        } else {
          // We've successfully replayed the first event. Let's try the next one.
          queuedDiscreteEvents.shift();
        }
      } // Next replay any continuous events.
    
    
      if (queuedFocus !== null && attemptReplayQueuedEvent(queuedFocus)) {
        queuedFocus = null;
      }
    
      if (queuedDrag !== null && attemptReplayQueuedEvent(queuedDrag)) {
        queuedDrag = null;
      }
    
      if (queuedMouse !== null && attemptReplayQueuedEvent(queuedMouse)) {
        queuedMouse = null;
      }
    
      queuedPointers.forEach(attemptReplayQueuedEventInMap);
      queuedPointerCaptures.forEach(attemptReplayQueuedEventInMap);
    }
    
    function scheduleCallbackIfUnblocked(queuedEvent, unblocked) {
      if (queuedEvent.blockedOn === unblocked) {
        queuedEvent.blockedOn = null;
    
        if (!hasScheduledReplayAttempt) {
          hasScheduledReplayAttempt = true; // Schedule a callback to attempt replaying as many events as are
          // now unblocked. This first might not actually be unblocked yet.
          // We could check it early to avoid scheduling an unnecessary callback.
    
          Scheduler.unstable_scheduleCallback(Scheduler.unstable_NormalPriority, replayUnblockedEvents);
        }
      }
    }
    
    function retryIfBlockedOn(unblocked) {
      // Mark anything that was blocked on this as no longer blocked
      // and eligible for a replay.
      if (queuedDiscreteEvents.length > 0) {
        scheduleCallbackIfUnblocked(queuedDiscreteEvents[0], unblocked); // This is a exponential search for each boundary that commits. I think it's
        // worth it because we expect very few discrete events to queue up and once
        // we are actually fully unblocked it will be fast to replay them.
    
        for (var i = 1; i < queuedDiscreteEvents.length; i++) {
          var queuedEvent = queuedDiscreteEvents[i];
    
          if (queuedEvent.blockedOn === unblocked) {
            queuedEvent.blockedOn = null;
          }
        }
      }
    
      if (queuedFocus !== null) {
        scheduleCallbackIfUnblocked(queuedFocus, unblocked);
      }
    
      if (queuedDrag !== null) {
        scheduleCallbackIfUnblocked(queuedDrag, unblocked);
      }
    
      if (queuedMouse !== null) {
        scheduleCallbackIfUnblocked(queuedMouse, unblocked);
      }
    
      var unblock = function (queuedEvent) {
        return scheduleCallbackIfUnblocked(queuedEvent, unblocked);
      };
    
      queuedPointers.forEach(unblock);
      queuedPointerCaptures.forEach(unblock);
    }
    
    /**
     * `ReactInstanceMap` maintains a mapping from a public facing stateful
     * instance (key) and the internal representation (value). This allows public
     * methods to accept the user facing instance as an argument and map them back
     * to internal methods.
     *
     * Note that this module is currently shared and assumed to be stateless.
     * If this becomes an actual Map, that will break.
     */
    
    /**
     * This API should be called `delete` but we'd have to make sure to always
     * transform these to strings for IE support. When this transform is fully
     * supported we can rename it.
     */
    
    function get(key) {
      return key._reactInternalFiber;
    }
    function has(key) {
      return key._reactInternalFiber !== undefined;
    }
    function set(key, value) {
      key._reactInternalFiber = value;
    }
    
    // Don't change these two values. They're used by React Dev Tools.
    var NoEffect =
    /*              */
    0;
    var PerformedWork =
    /*         */
    1; // You can change the rest (and add more).
    
    var Placement =
    /*             */
    2;
    var Update =
    /*                */
    4;
    var PlacementAndUpdate =
    /*    */
    6;
    var Deletion =
    /*              */
    8;
    var ContentReset =
    /*          */
    16;
    var Callback =
    /*              */
    32;
    var DidCapture =
    /*            */
    64;
    var Ref =
    /*                   */
    128;
    var Snapshot =
    /*              */
    256;
    var Passive =
    /*               */
    512;
    var Hydrating =
    /*             */
    1024;
    var HydratingAndUpdate =
    /*    */
    1028; // Passive & Update & Callback & Ref & Snapshot
    
    var LifecycleEffectMask =
    /*   */
    932; // Union of all host effects
    
    var HostEffectMask =
    /*        */
    2047;
    var Incomplete =
    /*            */
    2048;
    var ShouldCapture =
    /*         */
    4096;
    
    var ReactCurrentOwner$1 = ReactSharedInternals.ReactCurrentOwner;
    function getNearestMountedFiber(fiber) {
      var node = fiber;
      var nearestMounted = fiber;
    
      if (!fiber.alternate) {
        // If there is no alternate, this might be a new tree that isn't inserted
        // yet. If it is, then it will have a pending insertion effect on it.
        var nextNode = node;
    
        do {
          node = nextNode;
    
          if ((node.effectTag & (Placement | Hydrating)) !== NoEffect) {
            // This is an insertion or in-progress hydration. The nearest possible
            // mounted fiber is the parent but we need to continue to figure out
            // if that one is still mounted.
            nearestMounted = node.return;
          }
    
          nextNode = node.return;
        } while (nextNode);
      } else {
        while (node.return) {
          node = node.return;
        }
      }
    
      if (node.tag === HostRoot) {
        // TODO: Check if this was a nested HostRoot when used with
        // renderContainerIntoSubtree.
        return nearestMounted;
      } // If we didn't hit the root, that means that we're in an disconnected tree
      // that has been unmounted.
    
    
      return null;
    }
    function getSuspenseInstanceFromFiber(fiber) {
      if (fiber.tag === SuspenseComponent) {
        var suspenseState = fiber.memoizedState;
    
        if (suspenseState === null) {
          var current = fiber.alternate;
    
          if (current !== null) {
            suspenseState = current.memoizedState;
          }
        }
    
        if (suspenseState !== null) {
          return suspenseState.dehydrated;
        }
      }
    
      return null;
    }
    function getContainerFromFiber(fiber) {
      return fiber.tag === HostRoot ? fiber.stateNode.containerInfo : null;
    }
    function isFiberMounted(fiber) {
      return getNearestMountedFiber(fiber) === fiber;
    }
    function isMounted(component) {
      {
        var owner = ReactCurrentOwner$1.current;
    
        if (owner !== null && owner.tag === ClassComponent) {
          var ownerFiber = owner;
          var instance = ownerFiber.stateNode;
          !instance._warnedAboutRefsInRender ? warningWithoutStack$1(false, '%s is accessing isMounted inside its render() function. ' + 'render() should be a pure function of props and state. It should ' + 'never access something that requires stale data from the previous ' + 'render, such as refs. Move this logic to componentDidMount and ' + 'componentDidUpdate instead.', getComponentName(ownerFiber.type) || 'A component') : void 0;
          instance._warnedAboutRefsInRender = true;
        }
      }
    
      var fiber = get(component);
    
      if (!fiber) {
        return false;
      }
    
      return getNearestMountedFiber(fiber) === fiber;
    }
    
    function assertIsMounted(fiber) {
      (function () {
        if (!(getNearestMountedFiber(fiber) === fiber)) {
          {
            throw ReactError(Error("Unable to find node on an unmounted component."));
          }
        }
      })();
    }
    
    function findCurrentFiberUsingSlowPath(fiber) {
      var alternate = fiber.alternate;
    
      if (!alternate) {
        // If there is no alternate, then we only need to check if it is mounted.
        var nearestMounted = getNearestMountedFiber(fiber);
    
        (function () {
          if (!(nearestMounted !== null)) {
            {
              throw ReactError(Error("Unable to find node on an unmounted component."));
            }
          }
        })();
    
        if (nearestMounted !== fiber) {
          return null;
        }
    
        return fiber;
      } // If we have two possible branches, we'll walk backwards up to the root
      // to see what path the root points to. On the way we may hit one of the
      // special cases and we'll deal with them.
    
    
      var a = fiber;
      var b = alternate;
    
      while (true) {
        var parentA = a.return;
    
        if (parentA === null) {
          // We're at the root.
          break;
        }
    
        var parentB = parentA.alternate;
    
        if (parentB === null) {
          // There is no alternate. This is an unusual case. Currently, it only
          // happens when a Suspense component is hidden. An extra fragment fiber
          // is inserted in between the Suspense fiber and its children. Skip
          // over this extra fragment fiber and proceed to the next parent.
          var nextParent = parentA.return;
    
          if (nextParent !== null) {
            a = b = nextParent;
            continue;
          } // If there's no parent, we're at the root.
    
    
          break;
        } // If both copies of the parent fiber point to the same child, we can
        // assume that the child is current. This happens when we bailout on low
        // priority: the bailed out fiber's child reuses the current child.
    
    
        if (parentA.child === parentB.child) {
          var child = parentA.child;
    
          while (child) {
            if (child === a) {
              // We've determined that A is the current branch.
              assertIsMounted(parentA);
              return fiber;
            }
    
            if (child === b) {
              // We've determined that B is the current branch.
              assertIsMounted(parentA);
              return alternate;
            }
    
            child = child.sibling;
          } // We should never have an alternate for any mounting node. So the only
          // way this could possibly happen is if this was unmounted, if at all.
    
    
          (function () {
            {
              {
                throw ReactError(Error("Unable to find node on an unmounted component."));
              }
            }
          })();
        }
    
        if (a.return !== b.return) {
          // The return pointer of A and the return pointer of B point to different
          // fibers. We assume that return pointers never criss-cross, so A must
          // belong to the child set of A.return, and B must belong to the child
          // set of B.return.
          a = parentA;
          b = parentB;
        } else {
          // The return pointers point to the same fiber. We'll have to use the
          // default, slow path: scan the child sets of each parent alternate to see
          // which child belongs to which set.
          //
          // Search parent A's child set
          var didFindChild = false;
          var _child = parentA.child;
    
          while (_child) {
            if (_child === a) {
              didFindChild = true;
              a = parentA;
              b = parentB;
              break;
            }
    
            if (_child === b) {
              didFindChild = true;
              b = parentA;
              a = parentB;
              break;
            }
    
            _child = _child.sibling;
          }
    
          if (!didFindChild) {
            // Search parent B's child set
            _child = parentB.child;
    
            while (_child) {
              if (_child === a) {
                didFindChild = true;
                a = parentB;
                b = parentA;
                break;
              }
    
              if (_child === b) {
                didFindChild = true;
                b = parentB;
                a = parentA;
                break;
              }
    
              _child = _child.sibling;
            }
    
            (function () {
              if (!didFindChild) {
                {
                  throw ReactError(Error("Child was not found in either parent set. This indicates a bug in React related to the return pointer. Please file an issue."));
                }
              }
            })();
          }
        }
    
        (function () {
          if (!(a.alternate === b)) {
            {
              throw ReactError(Error("Return fibers should always be each others' alternates. This error is likely caused by a bug in React. Please file an issue."));
            }
          }
        })();
      } // If the root is not a host container, we're in a disconnected tree. I.e.
      // unmounted.
    
    
      (function () {
        if (!(a.tag === HostRoot)) {
          {
            throw ReactError(Error("Unable to find node on an unmounted component."));
          }
        }
      })();
    
      if (a.stateNode.current === a) {
        // We've determined that A is the current branch.
        return fiber;
      } // Otherwise B has to be current branch.
    
    
      return alternate;
    }
    function findCurrentHostFiber(parent) {
      var currentParent = findCurrentFiberUsingSlowPath(parent);
    
      if (!currentParent) {
        return null;
      } // Next we'll drill down this component to find the first HostComponent/Text.
    
    
      var node = currentParent;
    
      while (true) {
        if (node.tag === HostComponent || node.tag === HostText) {
          return node;
        } else if (node.child) {
          node.child.return = node;
          node = node.child;
          continue;
        }
    
        if (node === currentParent) {
          return null;
        }
    
        while (!node.sibling) {
          if (!node.return || node.return === currentParent) {
            return null;
          }
    
          node = node.return;
        }
    
        node.sibling.return = node.return;
        node = node.sibling;
      } // Flow needs the return null here, but ESLint complains about it.
      // eslint-disable-next-line no-unreachable
    
    
      return null;
    }
    function findCurrentHostFiberWithNoPortals(parent) {
      var currentParent = findCurrentFiberUsingSlowPath(parent);
    
      if (!currentParent) {
        return null;
      } // Next we'll drill down this component to find the first HostComponent/Text.
    
    
      var node = currentParent;
    
      while (true) {
        if (node.tag === HostComponent || node.tag === HostText || enableFundamentalAPI && node.tag === FundamentalComponent) {
          return node;
        } else if (node.child && node.tag !== HostPortal) {
          node.child.return = node;
          node = node.child;
          continue;
        }
    
        if (node === currentParent) {
          return null;
        }
    
        while (!node.sibling) {
          if (!node.return || node.return === currentParent) {
            return null;
          }
    
          node = node.return;
        }
    
        node.sibling.return = node.return;
        node = node.sibling;
      } // Flow needs the return null here, but ESLint complains about it.
      // eslint-disable-next-line no-unreachable
    
    
      return null;
    }
    
    function addEventBubbleListener(element, eventType, listener) {
      element.addEventListener(eventType, listener, false);
    }
    function addEventCaptureListener(element, eventType, listener) {
      element.addEventListener(eventType, listener, true);
    }
    function addEventCaptureListenerWithPassiveFlag(element, eventType, listener, passive) {
      element.addEventListener(eventType, listener, {
        capture: true,
        passive: passive
      });
    }
    
    /**
     * Gets the target node from a native browser event by accounting for
     * inconsistencies in browser DOM APIs.
     *
     * @param {object} nativeEvent Native browser event.
     * @return {DOMEventTarget} Target node.
     */
    
    function getEventTarget(nativeEvent) {
      // Fallback to nativeEvent.srcElement for IE9
      // https://github.com/facebook/react/issues/12506
      var target = nativeEvent.target || nativeEvent.srcElement || window; // Normalize SVG <use> element events #4963
    
      if (target.correspondingUseElement) {
        target = target.correspondingUseElement;
      } // Safari may fire events on text nodes (Node.TEXT_NODE is 3).
      // @see http://www.quirksmode.org/js/events_properties.html
    
    
      return target.nodeType === TEXT_NODE ? target.parentNode : target;
    }
    
    function getParent(inst) {
      do {
        inst = inst.return; // TODO: If this is a HostRoot we might want to bail out.
        // That is depending on if we want nested subtrees (layers) to bubble
        // events to their parent. We could also go through parentNode on the
        // host node but that wouldn't work for React Native and doesn't let us
        // do the portal feature.
      } while (inst && inst.tag !== HostComponent);
    
      if (inst) {
        return inst;
      }
    
      return null;
    }
    /**
     * Return the lowest common ancestor of A and B, or null if they are in
     * different trees.
     */
    
    
    function getLowestCommonAncestor(instA, instB) {
      var depthA = 0;
    
      for (var tempA = instA; tempA; tempA = getParent(tempA)) {
        depthA++;
      }
    
      var depthB = 0;
    
      for (var tempB = instB; tempB; tempB = getParent(tempB)) {
        depthB++;
      } // If A is deeper, crawl up.
    
    
      while (depthA - depthB > 0) {
        instA = getParent(instA);
        depthA--;
      } // If B is deeper, crawl up.
    
    
      while (depthB - depthA > 0) {
        instB = getParent(instB);
        depthB--;
      } // Walk in lockstep until we find a match.
    
    
      var depth = depthA;
    
      while (depth--) {
        if (instA === instB || instA === instB.alternate) {
          return instA;
        }
    
        instA = getParent(instA);
        instB = getParent(instB);
      }
    
      return null;
    }
    /**
     * Return if A is an ancestor of B.
     */
    
    
    /**
     * Return the parent instance of the passed-in instance.
     */
    
    
    /**
     * Simulates the traversal of a two-phase, capture/bubble event dispatch.
     */
    
    function traverseTwoPhase(inst, fn, arg) {
      var path = [];
    
      while (inst) {
        path.push(inst);
        inst = getParent(inst);
      }
    
      var i;
    
      for (i = path.length; i-- > 0;) {
        fn(path[i], 'captured', arg);
      }
    
      for (i = 0; i < path.length; i++) {
        fn(path[i], 'bubbled', arg);
      }
    }
    /**
     * Traverses the ID hierarchy and invokes the supplied `cb` on any IDs that
     * should would receive a `mouseEnter` or `mouseLeave` event.
     *
     * Does not invoke the callback on the nearest common ancestor because nothing
     * "entered" or "left" that element.
     */
    
    function traverseEnterLeave(from, to, fn, argFrom, argTo) {
      var common = from && to ? getLowestCommonAncestor(from, to) : null;
      var pathFrom = [];
    
      while (true) {
        if (!from) {
          break;
        }
    
        if (from === common) {
          break;
        }
    
        var alternate = from.alternate;
    
        if (alternate !== null && alternate === common) {
          break;
        }
    
        pathFrom.push(from);
        from = getParent(from);
      }
    
      var pathTo = [];
    
      while (true) {
        if (!to) {
          break;
        }
    
        if (to === common) {
          break;
        }
    
        var _alternate = to.alternate;
    
        if (_alternate !== null && _alternate === common) {
          break;
        }
    
        pathTo.push(to);
        to = getParent(to);
      }
    
      for (var i = 0; i < pathFrom.length; i++) {
        fn(pathFrom[i], 'bubbled', argFrom);
      }
    
      for (var _i = pathTo.length; _i-- > 0;) {
        fn(pathTo[_i], 'captured', argTo);
      }
    }
    
    /**
     * Some event types have a notion of different registration names for different
     * "phases" of propagation. This finds listeners by a given phase.
     */
    function listenerAtPhase(inst, event, propagationPhase) {
      var registrationName = event.dispatchConfig.phasedRegistrationNames[propagationPhase];
      return getListener(inst, registrationName);
    }
    /**
     * A small set of propagation patterns, each of which will accept a small amount
     * of information, and generate a set of "dispatch ready event objects" - which
     * are sets of events that have already been annotated with a set of dispatched
     * listener functions/ids. The API is designed this way to discourage these
     * propagation strategies from actually executing the dispatches, since we
     * always want to collect the entire set of dispatches before executing even a
     * single one.
     */
    
    /**
     * Tags a `SyntheticEvent` with dispatched listeners. Creating this function
     * here, allows us to not have to bind or create functions for each event.
     * Mutating the event's members allows us to not have to create a wrapping
     * "dispatch" object that pairs the event with the listener.
     */
    
    
    function accumulateDirectionalDispatches(inst, phase, event) {
      {
        !inst ? warningWithoutStack$1(false, 'Dispatching inst must not be null') : void 0;
      }
    
      var listener = listenerAtPhase(inst, event, phase);
    
      if (listener) {
        event._dispatchListeners = accumulateInto(event._dispatchListeners, listener);
        event._dispatchInstances = accumulateInto(event._dispatchInstances, inst);
      }
    }
    /**
     * Collect dispatches (must be entirely collected before dispatching - see unit
     * tests). Lazily allocate the array to conserve memory.  We must loop through
     * each event and perform the traversal for each one. We cannot perform a
     * single traversal for the entire collection of events because each event may
     * have a different target.
     */
    
    
    function accumulateTwoPhaseDispatchesSingle(event) {
      if (event && event.dispatchConfig.phasedRegistrationNames) {
        traverseTwoPhase(event._targetInst, accumulateDirectionalDispatches, event);
      }
    }
    /**
     * Accumulates without regard to direction, does not look for phased
     * registration names. Same as `accumulateDirectDispatchesSingle` but without
     * requiring that the `dispatchMarker` be the same as the dispatched ID.
     */
    
    
    function accumulateDispatches(inst, ignoredDirection, event) {
      if (inst && event && event.dispatchConfig.registrationName) {
        var registrationName = event.dispatchConfig.registrationName;
        var listener = getListener(inst, registrationName);
    
        if (listener) {
          event._dispatchListeners = accumulateInto(event._dispatchListeners, listener);
          event._dispatchInstances = accumulateInto(event._dispatchInstances, inst);
        }
      }
    }
    /**
     * Accumulates dispatches on an `SyntheticEvent`, but only for the
     * `dispatchMarker`.
     * @param {SyntheticEvent} event
     */
    
    
    function accumulateDirectDispatchesSingle(event) {
      if (event && event.dispatchConfig.registrationName) {
        accumulateDispatches(event._targetInst, null, event);
      }
    }
    
    function accumulateTwoPhaseDispatches(events) {
      forEachAccumulated(events, accumulateTwoPhaseDispatchesSingle);
    }
    
    function accumulateEnterLeaveDispatches(leave, enter, from, to) {
      traverseEnterLeave(from, to, accumulateDispatches, leave, enter);
    }
    function accumulateDirectDispatches(events) {
      forEachAccumulated(events, accumulateDirectDispatchesSingle);
    }
    
    /* eslint valid-typeof: 0 */
    var EVENT_POOL_SIZE = 10;
    /**
     * @interface Event
     * @see http://www.w3.org/TR/DOM-Level-3-Events/
     */
    
    var EventInterface = {
      type: null,
      target: null,
      // currentTarget is set when dispatching; no use in copying it here
      currentTarget: function () {
        return null;
      },
      eventPhase: null,
      bubbles: null,
      cancelable: null,
      timeStamp: function (event) {
        return event.timeStamp || Date.now();
      },
      defaultPrevented: null,
      isTrusted: null
    };
    
    function functionThatReturnsTrue() {
      return true;
    }
    
    function functionThatReturnsFalse() {
      return false;
    }
    /**
     * Synthetic events are dispatched by event plugins, typically in response to a
     * top-level event delegation handler.
     *
     * These systems should generally use pooling to reduce the frequency of garbage
     * collection. The system should check `isPersistent` to determine whether the
     * event should be released into the pool after being dispatched. Users that
     * need a persisted event should invoke `persist`.
     *
     * Synthetic events (and subclasses) implement the DOM Level 3 Events API by
     * normalizing browser quirks. Subclasses do not necessarily have to implement a
     * DOM interface; custom application-specific events can also subclass this.
     *
     * @param {object} dispatchConfig Configuration used to dispatch this event.
     * @param {*} targetInst Marker identifying the event target.
     * @param {object} nativeEvent Native browser event.
     * @param {DOMEventTarget} nativeEventTarget Target node.
     */
    
    
    function SyntheticEvent(dispatchConfig, targetInst, nativeEvent, nativeEventTarget) {
      {
        // these have a getter/setter for warnings
        delete this.nativeEvent;
        delete this.preventDefault;
        delete this.stopPropagation;
        delete this.isDefaultPrevented;
        delete this.isPropagationStopped;
      }
    
      this.dispatchConfig = dispatchConfig;
      this._targetInst = targetInst;
      this.nativeEvent = nativeEvent;
      var Interface = this.constructor.Interface;
    
      for (var propName in Interface) {
        if (!Interface.hasOwnProperty(propName)) {
          continue;
        }
    
        {
          delete this[propName]; // this has a getter/setter for warnings
        }
    
        var normalize = Interface[propName];
    
        if (normalize) {
          this[propName] = normalize(nativeEvent);
        } else {
          if (propName === 'target') {
            this.target = nativeEventTarget;
          } else {
            this[propName] = nativeEvent[propName];
          }
        }
      }
    
      var defaultPrevented = nativeEvent.defaultPrevented != null ? nativeEvent.defaultPrevented : nativeEvent.returnValue === false;
    
      if (defaultPrevented) {
        this.isDefaultPrevented = functionThatReturnsTrue;
      } else {
        this.isDefaultPrevented = functionThatReturnsFalse;
      }
    
      this.isPropagationStopped = functionThatReturnsFalse;
      return this;
    }
    
    _assign(SyntheticEvent.prototype, {
      preventDefault: function () {
        this.defaultPrevented = true;
        var event = this.nativeEvent;
    
        if (!event) {
          return;
        }
    
        if (event.preventDefault) {
          event.preventDefault();
        } else if (typeof event.returnValue !== 'unknown') {
          event.returnValue = false;
        }
    
        this.isDefaultPrevented = functionThatReturnsTrue;
      },
      stopPropagation: function () {
        var event = this.nativeEvent;
    
        if (!event) {
          return;
        }
    
        if (event.stopPropagation) {
          event.stopPropagation();
        } else if (typeof event.cancelBubble !== 'unknown') {
          // The ChangeEventPlugin registers a "propertychange" event for
          // IE. This event does not support bubbling or cancelling, and
          // any references to cancelBubble throw "Member not found".  A
          // typeof check of "unknown" circumvents this issue (and is also
          // IE specific).
          event.cancelBubble = true;
        }
    
        this.isPropagationStopped = functionThatReturnsTrue;
      },
    
      /**
       * We release all dispatched `SyntheticEvent`s after each event loop, adding
       * them back into the pool. This allows a way to hold onto a reference that
       * won't be added back into the pool.
       */
      persist: function () {
        this.isPersistent = functionThatReturnsTrue;
      },
    
      /**
       * Checks if this event should be released back into the pool.
       *
       * @return {boolean} True if this should not be released, false otherwise.
       */
      isPersistent: functionThatReturnsFalse,
    
      /**
       * `PooledClass` looks for `destructor` on each instance it releases.
       */
      destructor: function () {
        var Interface = this.constructor.Interface;
    
        for (var propName in Interface) {
          {
            Object.defineProperty(this, propName, getPooledWarningPropertyDefinition(propName, Interface[propName]));
          }
        }
    
        this.dispatchConfig = null;
        this._targetInst = null;
        this.nativeEvent = null;
        this.isDefaultPrevented = functionThatReturnsFalse;
        this.isPropagationStopped = functionThatReturnsFalse;
        this._dispatchListeners = null;
        this._dispatchInstances = null;
    
        {
          Object.defineProperty(this, 'nativeEvent', getPooledWarningPropertyDefinition('nativeEvent', null));
          Object.defineProperty(this, 'isDefaultPrevented', getPooledWarningPropertyDefinition('isDefaultPrevented', functionThatReturnsFalse));
          Object.defineProperty(this, 'isPropagationStopped', getPooledWarningPropertyDefinition('isPropagationStopped', functionThatReturnsFalse));
          Object.defineProperty(this, 'preventDefault', getPooledWarningPropertyDefinition('preventDefault', function () {}));
          Object.defineProperty(this, 'stopPropagation', getPooledWarningPropertyDefinition('stopPropagation', function () {}));
        }
      }
    });
    
    SyntheticEvent.Interface = EventInterface;
    /**
     * Helper to reduce boilerplate when creating subclasses.
     */
    
    SyntheticEvent.extend = function (Interface) {
      var Super = this;
    
      var E = function () {};
    
      E.prototype = Super.prototype;
      var prototype = new E();
    
      function Class() {
        return Super.apply(this, arguments);
      }
    
      _assign(prototype, Class.prototype);
    
      Class.prototype = prototype;
      Class.prototype.constructor = Class;
      Class.Interface = _assign({}, Super.Interface, Interface);
      Class.extend = Super.extend;
      addEventPoolingTo(Class);
      return Class;
    };
    
    addEventPoolingTo(SyntheticEvent);
    /**
     * Helper to nullify syntheticEvent instance properties when destructing
     *
     * @param {String} propName
     * @param {?object} getVal
     * @return {object} defineProperty object
     */
    
    function getPooledWarningPropertyDefinition(propName, getVal) {
      var isFunction = typeof getVal === 'function';
      return {
        configurable: true,
        set: set,
        get: get
      };
    
      function set(val) {
        var action = isFunction ? 'setting the method' : 'setting the property';
        warn(action, 'This is effectively a no-op');
        return val;
      }
    
      function get() {
        var action = isFunction ? 'accessing the method' : 'accessing the property';
        var result = isFunction ? 'This is a no-op function' : 'This is set to null';
        warn(action, result);
        return getVal;
      }
    
      function warn(action, result) {
        var warningCondition = false;
        !warningCondition ? warningWithoutStack$1(false, "This synthetic event is reused for performance reasons. If you're seeing this, " + "you're %s `%s` on a released/nullified synthetic event. %s. " + 'If you must keep the original synthetic event around, use event.persist(). ' + 'See https://fb.me/react-event-pooling for more information.', action, propName, result) : void 0;
      }
    }
    
    function getPooledEvent(dispatchConfig, targetInst, nativeEvent, nativeInst) {
      var EventConstructor = this;
    
      if (EventConstructor.eventPool.length) {
        var instance = EventConstructor.eventPool.pop();
        EventConstructor.call(instance, dispatchConfig, targetInst, nativeEvent, nativeInst);
        return instance;
      }
    
      return new EventConstructor(dispatchConfig, targetInst, nativeEvent, nativeInst);
    }
    
    function releasePooledEvent(event) {
      var EventConstructor = this;
    
      (function () {
        if (!(event instanceof EventConstructor)) {
          {
            throw ReactError(Error("Trying to release an event instance into a pool of a different type."));
          }
        }
      })();
    
      event.destructor();
    
      if (EventConstructor.eventPool.length < EVENT_POOL_SIZE) {
        EventConstructor.eventPool.push(event);
      }
    }
    
    function addEventPoolingTo(EventConstructor) {
      EventConstructor.eventPool = [];
      EventConstructor.getPooled = getPooledEvent;
      EventConstructor.release = releasePooledEvent;
    }
    
    /**
     * @interface Event
     * @see http://www.w3.org/TR/css3-animations/#AnimationEvent-interface
     * @see https://developer.mozilla.org/en-US/docs/Web/API/AnimationEvent
     */
    
    var SyntheticAnimationEvent = SyntheticEvent.extend({
      animationName: null,
      elapsedTime: null,
      pseudoElement: null
    });
    
    /**
     * @interface Event
     * @see http://www.w3.org/TR/clipboard-apis/
     */
    
    var SyntheticClipboardEvent = SyntheticEvent.extend({
      clipboardData: function (event) {
        return 'clipboardData' in event ? event.clipboardData : window.clipboardData;
      }
    });
    
    var SyntheticUIEvent = SyntheticEvent.extend({
      view: null,
      detail: null
    });
    
    /**
     * @interface FocusEvent
     * @see http://www.w3.org/TR/DOM-Level-3-Events/
     */
    
    var SyntheticFocusEvent = SyntheticUIEvent.extend({
      relatedTarget: null
    });
    
    /**
     * `charCode` represents the actual "character code" and is safe to use with
     * `String.fromCharCode`. As such, only keys that correspond to printable
     * characters produce a valid `charCode`, the only exception to this is Enter.
     * The Tab-key is considered non-printable and does not have a `charCode`,
     * presumably because it does not produce a tab-character in browsers.
     *
     * @param {object} nativeEvent Native browser event.
     * @return {number} Normalized `charCode` property.
     */
    function getEventCharCode(nativeEvent) {
      var charCode;
      var keyCode = nativeEvent.keyCode;
    
      if ('charCode' in nativeEvent) {
        charCode = nativeEvent.charCode; // FF does not set `charCode` for the Enter-key, check against `keyCode`.
    
        if (charCode === 0 && keyCode === 13) {
          charCode = 13;
        }
      } else {
        // IE8 does not implement `charCode`, but `keyCode` has the correct value.
        charCode = keyCode;
      } // IE and Edge (on Windows) and Chrome / Safari (on Windows and Linux)
      // report Enter as charCode 10 when ctrl is pressed.
    
    
      if (charCode === 10) {
        charCode = 13;
      } // Some non-printable keys are reported in `charCode`/`keyCode`, discard them.
      // Must not discard the (non-)printable Enter-key.
    
    
      if (charCode >= 32 || charCode === 13) {
        return charCode;
      }
    
      return 0;
    }
    
    /**
     * Normalization of deprecated HTML5 `key` values
     * @see https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent#Key_names
     */
    
    var normalizeKey = {
      Esc: 'Escape',
      Spacebar: ' ',
      Left: 'ArrowLeft',
      Up: 'ArrowUp',
      Right: 'ArrowRight',
      Down: 'ArrowDown',
      Del: 'Delete',
      Win: 'OS',
      Menu: 'ContextMenu',
      Apps: 'ContextMenu',
      Scroll: 'ScrollLock',
      MozPrintableKey: 'Unidentified'
    };
    /**
     * Translation from legacy `keyCode` to HTML5 `key`
     * Only special keys supported, all others depend on keyboard layout or browser
     * @see https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent#Key_names
     */
    
    var translateToKey = {
      '8': 'Backspace',
      '9': 'Tab',
      '12': 'Clear',
      '13': 'Enter',
      '16': 'Shift',
      '17': 'Control',
      '18': 'Alt',
      '19': 'Pause',
      '20': 'CapsLock',
      '27': 'Escape',
      '32': ' ',
      '33': 'PageUp',
      '34': 'PageDown',
      '35': 'End',
      '36': 'Home',
      '37': 'ArrowLeft',
      '38': 'ArrowUp',
      '39': 'ArrowRight',
      '40': 'ArrowDown',
      '45': 'Insert',
      '46': 'Delete',
      '112': 'F1',
      '113': 'F2',
      '114': 'F3',
      '115': 'F4',
      '116': 'F5',
      '117': 'F6',
      '118': 'F7',
      '119': 'F8',
      '120': 'F9',
      '121': 'F10',
      '122': 'F11',
      '123': 'F12',
      '144': 'NumLock',
      '145': 'ScrollLock',
      '224': 'Meta'
    };
    /**
     * @param {object} nativeEvent Native browser event.
     * @return {string} Normalized `key` property.
     */
    
    function getEventKey(nativeEvent) {
      if (nativeEvent.key) {
        // Normalize inconsistent values reported by browsers due to
        // implementations of a working draft specification.
        // FireFox implements `key` but returns `MozPrintableKey` for all
        // printable characters (normalized to `Unidentified`), ignore it.
        var key = normalizeKey[nativeEvent.key] || nativeEvent.key;
    
        if (key !== 'Unidentified') {
          return key;
        }
      } // Browser does not implement `key`, polyfill as much of it as we can.
    
    
      if (nativeEvent.type === 'keypress') {
        var charCode = getEventCharCode(nativeEvent); // The enter-key is technically both printable and non-printable and can
        // thus be captured by `keypress`, no other non-printable key should.
    
        return charCode === 13 ? 'Enter' : String.fromCharCode(charCode);
      }
    
      if (nativeEvent.type === 'keydown' || nativeEvent.type === 'keyup') {
        // While user keyboard layout determines the actual meaning of each
        // `keyCode` value, almost all function keys have a universal value.
        return translateToKey[nativeEvent.keyCode] || 'Unidentified';
      }
    
      return '';
    }
    
    /**
     * Translation from modifier key to the associated property in the event.
     * @see http://www.w3.org/TR/DOM-Level-3-Events/#keys-Modifiers
     */
    var modifierKeyToProp = {
      Alt: 'altKey',
      Control: 'ctrlKey',
      Meta: 'metaKey',
      Shift: 'shiftKey'
    }; // Older browsers (Safari <= 10, iOS Safari <= 10.2) do not support
    // getModifierState. If getModifierState is not supported, we map it to a set of
    // modifier keys exposed by the event. In this case, Lock-keys are not supported.
    
    function modifierStateGetter(keyArg) {
      var syntheticEvent = this;
      var nativeEvent = syntheticEvent.nativeEvent;
    
      if (nativeEvent.getModifierState) {
        return nativeEvent.getModifierState(keyArg);
      }
    
      var keyProp = modifierKeyToProp[keyArg];
      return keyProp ? !!nativeEvent[keyProp] : false;
    }
    
    function getEventModifierState(nativeEvent) {
      return modifierStateGetter;
    }
    
    /**
     * @interface KeyboardEvent
     * @see http://www.w3.org/TR/DOM-Level-3-Events/
     */
    
    var SyntheticKeyboardEvent = SyntheticUIEvent.extend({
      key: getEventKey,
      location: null,
      ctrlKey: null,
      shiftKey: null,
      altKey: null,
      metaKey: null,
      repeat: null,
      locale: null,
      getModifierState: getEventModifierState,
      // Legacy Interface
      charCode: function (event) {
        // `charCode` is the result of a KeyPress event and represents the value of
        // the actual printable character.
        // KeyPress is deprecated, but its replacement is not yet final and not
        // implemented in any major browser. Only KeyPress has charCode.
        if (event.type === 'keypress') {
          return getEventCharCode(event);
        }
    
        return 0;
      },
      keyCode: function (event) {
        // `keyCode` is the result of a KeyDown/Up event and represents the value of
        // physical keyboard key.
        // The actual meaning of the value depends on the users' keyboard layout
        // which cannot be detected. Assuming that it is a US keyboard layout
        // provides a surprisingly accurate mapping for US and European users.
        // Due to this, it is left to the user to implement at this time.
        if (event.type === 'keydown' || event.type === 'keyup') {
          return event.keyCode;
        }
    
        return 0;
      },
      which: function (event) {
        // `which` is an alias for either `keyCode` or `charCode` depending on the
        // type of the event.
        if (event.type === 'keypress') {
          return getEventCharCode(event);
        }
    
        if (event.type === 'keydown' || event.type === 'keyup') {
          return event.keyCode;
        }
    
        return 0;
      }
    });
    
    var previousScreenX = 0;
    var previousScreenY = 0; // Use flags to signal movementX/Y has already been set
    
    var isMovementXSet = false;
    var isMovementYSet = false;
    /**
     * @interface MouseEvent
     * @see http://www.w3.org/TR/DOM-Level-3-Events/
     */
    
    var SyntheticMouseEvent = SyntheticUIEvent.extend({
      screenX: null,
      screenY: null,
      clientX: null,
      clientY: null,
      pageX: null,
      pageY: null,
      ctrlKey: null,
      shiftKey: null,
      altKey: null,
      metaKey: null,
      getModifierState: getEventModifierState,
      button: null,
      buttons: null,
      relatedTarget: function (event) {
        return event.relatedTarget || (event.fromElement === event.srcElement ? event.toElement : event.fromElement);
      },
      movementX: function (event) {
        if ('movementX' in event) {
          return event.movementX;
        }
    
        var screenX = previousScreenX;
        previousScreenX = event.screenX;
    
        if (!isMovementXSet) {
          isMovementXSet = true;
          return 0;
        }
    
        return event.type === 'mousemove' ? event.screenX - screenX : 0;
      },
      movementY: function (event) {
        if ('movementY' in event) {
          return event.movementY;
        }
    
        var screenY = previousScreenY;
        previousScreenY = event.screenY;
    
        if (!isMovementYSet) {
          isMovementYSet = true;
          return 0;
        }
    
        return event.type === 'mousemove' ? event.screenY - screenY : 0;
      }
    });
    
    /**
     * @interface PointerEvent
     * @see http://www.w3.org/TR/pointerevents/
     */
    
    var SyntheticPointerEvent = SyntheticMouseEvent.extend({
      pointerId: null,
      width: null,
      height: null,
      pressure: null,
      tangentialPressure: null,
      tiltX: null,
      tiltY: null,
      twist: null,
      pointerType: null,
      isPrimary: null
    });
    
    /**
     * @interface DragEvent
     * @see http://www.w3.org/TR/DOM-Level-3-Events/
     */
    
    var SyntheticDragEvent = SyntheticMouseEvent.extend({
      dataTransfer: null
    });
    
    /**
     * @interface TouchEvent
     * @see http://www.w3.org/TR/touch-events/
     */
    
    var SyntheticTouchEvent = SyntheticUIEvent.extend({
      touches: null,
      targetTouches: null,
      changedTouches: null,
      altKey: null,
      metaKey: null,
      ctrlKey: null,
      shiftKey: null,
      getModifierState: getEventModifierState
    });
    
    /**
     * @interface Event
     * @see http://www.w3.org/TR/2009/WD-css3-transitions-20090320/#transition-events-
     * @see https://developer.mozilla.org/en-US/docs/Web/API/TransitionEvent
     */
    
    var SyntheticTransitionEvent = SyntheticEvent.extend({
      propertyName: null,
      elapsedTime: null,
      pseudoElement: null
    });
    
    /**
     * @interface WheelEvent
     * @see http://www.w3.org/TR/DOM-Level-3-Events/
     */
    
    var SyntheticWheelEvent = SyntheticMouseEvent.extend({
      deltaX: function (event) {
        return 'deltaX' in event ? event.deltaX : // Fallback to `wheelDeltaX` for Webkit and normalize (right is positive).
        'wheelDeltaX' in event ? -event.wheelDeltaX : 0;
      },
      deltaY: function (event) {
        return 'deltaY' in event ? event.deltaY : // Fallback to `wheelDeltaY` for Webkit and normalize (down is positive).
        'wheelDeltaY' in event ? -event.wheelDeltaY : // Fallback to `wheelDelta` for IE<9 and normalize (down is positive).
        'wheelDelta' in event ? -event.wheelDelta : 0;
      },
      deltaZ: null,
      // Browsers without "deltaMode" is reporting in raw wheel delta where one
      // notch on the scroll is always +/- 120, roughly equivalent to pixels.
      // A good approximation of DOM_DELTA_LINE (1) is 5% of viewport size or
      // ~40 pixels, for DOM_DELTA_SCREEN (2) it is 87.5% of viewport size.
      deltaMode: null
    });
    
    /**
     * Turns
     * ['abort', ...]
     * into
     * eventTypes = {
     *   'abort': {
     *     phasedRegistrationNames: {
     *       bubbled: 'onAbort',
     *       captured: 'onAbortCapture',
     *     },
     *     dependencies: [TOP_ABORT],
     *   },
     *   ...
     * };
     * topLevelEventsToDispatchConfig = new Map([
     *   [TOP_ABORT, { sameConfig }],
     * ]);
     */
    
    var eventTuples = [// Discrete events
    [TOP_BLUR, 'blur', DiscreteEvent], [TOP_CANCEL, 'cancel', DiscreteEvent], [TOP_CLICK, 'click', DiscreteEvent], [TOP_CLOSE, 'close', DiscreteEvent], [TOP_CONTEXT_MENU, 'contextMenu', DiscreteEvent], [TOP_COPY, 'copy', DiscreteEvent], [TOP_CUT, 'cut', DiscreteEvent], [TOP_AUX_CLICK, 'auxClick', DiscreteEvent], [TOP_DOUBLE_CLICK, 'doubleClick', DiscreteEvent], [TOP_DRAG_END, 'dragEnd', DiscreteEvent], [TOP_DRAG_START, 'dragStart', DiscreteEvent], [TOP_DROP, 'drop', DiscreteEvent], [TOP_FOCUS, 'focus', DiscreteEvent], [TOP_INPUT, 'input', DiscreteEvent], [TOP_INVALID, 'invalid', DiscreteEvent], [TOP_KEY_DOWN, 'keyDown', DiscreteEvent], [TOP_KEY_PRESS, 'keyPress', DiscreteEvent], [TOP_KEY_UP, 'keyUp', DiscreteEvent], [TOP_MOUSE_DOWN, 'mouseDown', DiscreteEvent], [TOP_MOUSE_UP, 'mouseUp', DiscreteEvent], [TOP_PASTE, 'paste', DiscreteEvent], [TOP_PAUSE, 'pause', DiscreteEvent], [TOP_PLAY, 'play', DiscreteEvent], [TOP_POINTER_CANCEL, 'pointerCancel', DiscreteEvent], [TOP_POINTER_DOWN, 'pointerDown', DiscreteEvent], [TOP_POINTER_UP, 'pointerUp', DiscreteEvent], [TOP_RATE_CHANGE, 'rateChange', DiscreteEvent], [TOP_RESET, 'reset', DiscreteEvent], [TOP_SEEKED, 'seeked', DiscreteEvent], [TOP_SUBMIT, 'submit', DiscreteEvent], [TOP_TOUCH_CANCEL, 'touchCancel', DiscreteEvent], [TOP_TOUCH_END, 'touchEnd', DiscreteEvent], [TOP_TOUCH_START, 'touchStart', DiscreteEvent], [TOP_VOLUME_CHANGE, 'volumeChange', DiscreteEvent], // User-blocking events
    [TOP_DRAG, 'drag', UserBlockingEvent], [TOP_DRAG_ENTER, 'dragEnter', UserBlockingEvent], [TOP_DRAG_EXIT, 'dragExit', UserBlockingEvent], [TOP_DRAG_LEAVE, 'dragLeave', UserBlockingEvent], [TOP_DRAG_OVER, 'dragOver', UserBlockingEvent], [TOP_MOUSE_MOVE, 'mouseMove', UserBlockingEvent], [TOP_MOUSE_OUT, 'mouseOut', UserBlockingEvent], [TOP_MOUSE_OVER, 'mouseOver', UserBlockingEvent], [TOP_POINTER_MOVE, 'pointerMove', UserBlockingEvent], [TOP_POINTER_OUT, 'pointerOut', UserBlockingEvent], [TOP_POINTER_OVER, 'pointerOver', UserBlockingEvent], [TOP_SCROLL, 'scroll', UserBlockingEvent], [TOP_TOGGLE, 'toggle', UserBlockingEvent], [TOP_TOUCH_MOVE, 'touchMove', UserBlockingEvent], [TOP_WHEEL, 'wheel', UserBlockingEvent], // Continuous events
    [TOP_ABORT, 'abort', ContinuousEvent], [TOP_ANIMATION_END, 'animationEnd', ContinuousEvent], [TOP_ANIMATION_ITERATION, 'animationIteration', ContinuousEvent], [TOP_ANIMATION_START, 'animationStart', ContinuousEvent], [TOP_CAN_PLAY, 'canPlay', ContinuousEvent], [TOP_CAN_PLAY_THROUGH, 'canPlayThrough', ContinuousEvent], [TOP_DURATION_CHANGE, 'durationChange', ContinuousEvent], [TOP_EMPTIED, 'emptied', ContinuousEvent], [TOP_ENCRYPTED, 'encrypted', ContinuousEvent], [TOP_ENDED, 'ended', ContinuousEvent], [TOP_ERROR, 'error', ContinuousEvent], [TOP_GOT_POINTER_CAPTURE, 'gotPointerCapture', ContinuousEvent], [TOP_LOAD, 'load', ContinuousEvent], [TOP_LOADED_DATA, 'loadedData', ContinuousEvent], [TOP_LOADED_METADATA, 'loadedMetadata', ContinuousEvent], [TOP_LOAD_START, 'loadStart', ContinuousEvent], [TOP_LOST_POINTER_CAPTURE, 'lostPointerCapture', ContinuousEvent], [TOP_PLAYING, 'playing', ContinuousEvent], [TOP_PROGRESS, 'progress', ContinuousEvent], [TOP_SEEKING, 'seeking', ContinuousEvent], [TOP_STALLED, 'stalled', ContinuousEvent], [TOP_SUSPEND, 'suspend', ContinuousEvent], [TOP_TIME_UPDATE, 'timeUpdate', ContinuousEvent], [TOP_TRANSITION_END, 'transitionEnd', ContinuousEvent], [TOP_WAITING, 'waiting', ContinuousEvent]];
    var eventTypes = {};
    var topLevelEventsToDispatchConfig = {};
    
    for (var i = 0; i < eventTuples.length; i++) {
      var eventTuple = eventTuples[i];
      var topEvent = eventTuple[0];
      var event = eventTuple[1];
      var eventPriority = eventTuple[2];
      var capitalizedEvent = event[0].toUpperCase() + event.slice(1);
      var onEvent = 'on' + capitalizedEvent;
      var config = {
        phasedRegistrationNames: {
          bubbled: onEvent,
          captured: onEvent + 'Capture'
        },
        dependencies: [topEvent],
        eventPriority: eventPriority
      };
      eventTypes[event] = config;
      topLevelEventsToDispatchConfig[topEvent] = config;
    } // Only used in DEV for exhaustiveness validation.
    
    
    var knownHTMLTopLevelTypes = [TOP_ABORT, TOP_CANCEL, TOP_CAN_PLAY, TOP_CAN_PLAY_THROUGH, TOP_CLOSE, TOP_DURATION_CHANGE, TOP_EMPTIED, TOP_ENCRYPTED, TOP_ENDED, TOP_ERROR, TOP_INPUT, TOP_INVALID, TOP_LOAD, TOP_LOADED_DATA, TOP_LOADED_METADATA, TOP_LOAD_START, TOP_PAUSE, TOP_PLAY, TOP_PLAYING, TOP_PROGRESS, TOP_RATE_CHANGE, TOP_RESET, TOP_SEEKED, TOP_SEEKING, TOP_STALLED, TOP_SUBMIT, TOP_SUSPEND, TOP_TIME_UPDATE, TOP_TOGGLE, TOP_VOLUME_CHANGE, TOP_WAITING];
    var SimpleEventPlugin = {
      eventTypes: eventTypes,
      getEventPriority: function (topLevelType) {
        var config = topLevelEventsToDispatchConfig[topLevelType];
        return config !== undefined ? config.eventPriority : ContinuousEvent;
      },
      extractEvents: function (topLevelType, eventSystemFlags, targetInst, nativeEvent, nativeEventTarget) {
        var dispatchConfig = topLevelEventsToDispatchConfig[topLevelType];
    
        if (!dispatchConfig) {
          return null;
        }
    
        var EventConstructor;
    
        switch (topLevelType) {
          case TOP_KEY_PRESS:
            // Firefox creates a keypress event for function keys too. This removes
            // the unwanted keypress events. Enter is however both printable and
            // non-printable. One would expect Tab to be as well (but it isn't).
            if (getEventCharCode(nativeEvent) === 0) {
              return null;
            }
    
          /* falls through */
    
          case TOP_KEY_DOWN:
          case TOP_KEY_UP:
            EventConstructor = SyntheticKeyboardEvent;
            break;
    
          case TOP_BLUR:
          case TOP_FOCUS:
            EventConstructor = SyntheticFocusEvent;
            break;
    
          case TOP_CLICK:
            // Firefox creates a click event on right mouse clicks. This removes the
            // unwanted click events.
            if (nativeEvent.button === 2) {
              return null;
            }
    
          /* falls through */
    
          case TOP_AUX_CLICK:
          case TOP_DOUBLE_CLICK:
          case TOP_MOUSE_DOWN:
          case TOP_MOUSE_MOVE:
          case TOP_MOUSE_UP: // TODO: Disabled elements should not respond to mouse events
    
          /* falls through */
    
          case TOP_MOUSE_OUT:
          case TOP_MOUSE_OVER:
          case TOP_CONTEXT_MENU:
            EventConstructor = SyntheticMouseEvent;
            break;
    
          case TOP_DRAG:
          case TOP_DRAG_END:
          case TOP_DRAG_ENTER:
          case TOP_DRAG_EXIT:
          case TOP_DRAG_LEAVE:
          case TOP_DRAG_OVER:
          case TOP_DRAG_START:
          case TOP_DROP:
            EventConstructor = SyntheticDragEvent;
            break;
    
          case TOP_TOUCH_CANCEL:
          case TOP_TOUCH_END:
          case TOP_TOUCH_MOVE:
          case TOP_TOUCH_START:
            EventConstructor = SyntheticTouchEvent;
            break;
    
          case TOP_ANIMATION_END:
          case TOP_ANIMATION_ITERATION:
          case TOP_ANIMATION_START:
            EventConstructor = SyntheticAnimationEvent;
            break;
    
          case TOP_TRANSITION_END:
            EventConstructor = SyntheticTransitionEvent;
            break;
    
          case TOP_SCROLL:
            EventConstructor = SyntheticUIEvent;
            break;
    
          case TOP_WHEEL:
            EventConstructor = SyntheticWheelEvent;
            break;
    
          case TOP_COPY:
          case TOP_CUT:
          case TOP_PASTE:
            EventConstructor = SyntheticClipboardEvent;
            break;
    
          case TOP_GOT_POINTER_CAPTURE:
          case TOP_LOST_POINTER_CAPTURE:
          case TOP_POINTER_CANCEL:
          case TOP_POINTER_DOWN:
          case TOP_POINTER_MOVE:
          case TOP_POINTER_OUT:
          case TOP_POINTER_OVER:
          case TOP_POINTER_UP:
            EventConstructor = SyntheticPointerEvent;
            break;
    
          default:
            {
              if (knownHTMLTopLevelTypes.indexOf(topLevelType) === -1) {
                warningWithoutStack$1(false, 'SimpleEventPlugin: Unhandled event type, `%s`. This warning ' + 'is likely caused by a bug in React. Please file an issue.', topLevelType);
              }
            } // HTML Events
            // @see http://www.w3.org/TR/html5/index.html#events-0
    
    
            EventConstructor = SyntheticEvent;
            break;
        }
    
        var event = EventConstructor.getPooled(dispatchConfig, targetInst, nativeEvent, nativeEventTarget);
        accumulateTwoPhaseDispatches(event);
        return event;
      }
    };
    
    var passiveBrowserEventsSupported = false; // Check if browser support events with passive listeners
    // https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener#Safely_detecting_option_support
    
    if (enableFlareAPI && canUseDOM) {
      try {
        var options = {}; // $FlowFixMe: Ignore Flow complaining about needing a value
    
        Object.defineProperty(options, 'passive', {
          get: function () {
            passiveBrowserEventsSupported = true;
          }
        });
        window.addEventListener('test', options, options);
        window.removeEventListener('test', options, options);
      } catch (e) {
        passiveBrowserEventsSupported = false;
      }
    }
    
    // Intentionally not named imports because Rollup would use dynamic dispatch for
    // CommonJS interop named imports.
    var UserBlockingPriority$1 = Scheduler.unstable_UserBlockingPriority;
    var runWithPriority$1 = Scheduler.unstable_runWithPriority;
    var getEventPriority = SimpleEventPlugin.getEventPriority;
    var CALLBACK_BOOKKEEPING_POOL_SIZE = 10;
    var callbackBookkeepingPool = [];
    
    /**
     * Find the deepest React component completely containing the root of the
     * passed-in instance (for use when entire React trees are nested within each
     * other). If React trees are not nested, returns null.
     */
    function findRootContainerNode(inst) {
      if (inst.tag === HostRoot) {
        return inst.stateNode.containerInfo;
      } // TODO: It may be a good idea to cache this to prevent unnecessary DOM
      // traversal, but caching is difficult to do correctly without using a
      // mutation observer to listen for all DOM changes.
    
    
      while (inst.return) {
        inst = inst.return;
      }
    
      if (inst.tag !== HostRoot) {
        // This can happen if we're in a detached tree.
        return null;
      }
    
      return inst.stateNode.containerInfo;
    } // Used to store ancestor hierarchy in top level callback
    
    
    function getTopLevelCallbackBookKeeping(topLevelType, nativeEvent, targetInst, eventSystemFlags) {
      if (callbackBookkeepingPool.length) {
        var instance = callbackBookkeepingPool.pop();
        instance.topLevelType = topLevelType;
        instance.eventSystemFlags = eventSystemFlags;
        instance.nativeEvent = nativeEvent;
        instance.targetInst = targetInst;
        return instance;
      }
    
      return {
        topLevelType: topLevelType,
        eventSystemFlags: eventSystemFlags,
        nativeEvent: nativeEvent,
        targetInst: targetInst,
        ancestors: []
      };
    }
    
    function releaseTopLevelCallbackBookKeeping(instance) {
      instance.topLevelType = null;
      instance.nativeEvent = null;
      instance.targetInst = null;
      instance.ancestors.length = 0;
    
      if (callbackBookkeepingPool.length < CALLBACK_BOOKKEEPING_POOL_SIZE) {
        callbackBookkeepingPool.push(instance);
      }
    }
    
    function handleTopLevel(bookKeeping) {
      var targetInst = bookKeeping.targetInst; // Loop through the hierarchy, in case there's any nested components.
      // It's important that we build the array of ancestors before calling any
      // event handlers, because event handlers can modify the DOM, leading to
      // inconsistencies with ReactMount's node cache. See #1105.
    
      var ancestor = targetInst;
    
      do {
        if (!ancestor) {
          var ancestors = bookKeeping.ancestors;
          ancestors.push(ancestor);
          break;
        }
    
        var root = findRootContainerNode(ancestor);
    
        if (!root) {
          break;
        }
    
        var tag = ancestor.tag;
    
        if (tag === HostComponent || tag === HostText) {
          bookKeeping.ancestors.push(ancestor);
        }
    
        ancestor = getClosestInstanceFromNode(root);
      } while (ancestor);
    
      for (var i = 0; i < bookKeeping.ancestors.length; i++) {
        targetInst = bookKeeping.ancestors[i];
        var eventTarget = getEventTarget(bookKeeping.nativeEvent);
        var topLevelType = bookKeeping.topLevelType;
        var nativeEvent = bookKeeping.nativeEvent;
        runExtractedPluginEventsInBatch(topLevelType, bookKeeping.eventSystemFlags, targetInst, nativeEvent, eventTarget);
      }
    } // TODO: can we stop exporting these?
    
    
    var _enabled = true;
    function setEnabled(enabled) {
      _enabled = !!enabled;
    }
    function isEnabled() {
      return _enabled;
    }
    function trapBubbledEvent(topLevelType, element) {
      trapEventForPluginEventSystem(element, topLevelType, false);
    }
    function trapCapturedEvent(topLevelType, element) {
      trapEventForPluginEventSystem(element, topLevelType, true);
    }
    function trapEventForResponderEventSystem(element, topLevelType, passive) {
      if (enableFlareAPI) {
        var rawEventName = getRawEventName(topLevelType);
        var eventFlags = RESPONDER_EVENT_SYSTEM; // If passive option is not supported, then the event will be
        // active and not passive, but we flag it as using not being
        // supported too. This way the responder event plugins know,
        // and can provide polyfills if needed.
    
        if (passive) {
          if (passiveBrowserEventsSupported) {
            eventFlags |= IS_PASSIVE;
          } else {
            eventFlags |= IS_ACTIVE;
            eventFlags |= PASSIVE_NOT_SUPPORTED;
            passive = false;
          }
        } else {
          eventFlags |= IS_ACTIVE;
        } // Check if interactive and wrap in discreteUpdates
    
    
        var listener = dispatchEvent.bind(null, topLevelType, eventFlags);
    
        if (passiveBrowserEventsSupported) {
          addEventCaptureListenerWithPassiveFlag(element, rawEventName, listener, passive);
        } else {
          addEventCaptureListener(element, rawEventName, listener);
        }
      }
    }
    
    function trapEventForPluginEventSystem(element, topLevelType, capture) {
      var listener;
    
      switch (getEventPriority(topLevelType)) {
        case DiscreteEvent:
          listener = dispatchDiscreteEvent.bind(null, topLevelType, PLUGIN_EVENT_SYSTEM);
          break;
    
        case UserBlockingEvent:
          listener = dispatchUserBlockingUpdate.bind(null, topLevelType, PLUGIN_EVENT_SYSTEM);
          break;
    
        case ContinuousEvent:
        default:
          listener = dispatchEvent.bind(null, topLevelType, PLUGIN_EVENT_SYSTEM);
          break;
      }
    
      var rawEventName = getRawEventName(topLevelType);
    
      if (capture) {
        addEventCaptureListener(element, rawEventName, listener);
      } else {
        addEventBubbleListener(element, rawEventName, listener);
      }
    }
    
    function dispatchDiscreteEvent(topLevelType, eventSystemFlags, nativeEvent) {
      flushDiscreteUpdatesIfNeeded(nativeEvent.timeStamp);
      discreteUpdates(dispatchEvent, topLevelType, eventSystemFlags, nativeEvent);
    }
    
    function dispatchUserBlockingUpdate(topLevelType, eventSystemFlags, nativeEvent) {
      if (enableUserBlockingEvents) {
        runWithPriority$1(UserBlockingPriority$1, dispatchEvent.bind(null, topLevelType, eventSystemFlags, nativeEvent));
      } else {
        dispatchEvent(topLevelType, eventSystemFlags, nativeEvent);
      }
    }
    
    function dispatchEventForPluginEventSystem(topLevelType, eventSystemFlags, nativeEvent, targetInst) {
      var bookKeeping = getTopLevelCallbackBookKeeping(topLevelType, nativeEvent, targetInst, eventSystemFlags);
    
      try {
        // Event queue being processed in the same cycle allows
        // `preventDefault`.
        batchedEventUpdates(handleTopLevel, bookKeeping);
      } finally {
        releaseTopLevelCallbackBookKeeping(bookKeeping);
      }
    }
    
    function dispatchEvent(topLevelType, eventSystemFlags, nativeEvent) {
      if (!_enabled) {
        return;
      }
    
      if (hasQueuedDiscreteEvents() && isReplayableDiscreteEvent(topLevelType)) {
        // If we already have a queue of discrete events, and this is another discrete
        // event, then we can't dispatch it regardless of its target, since they
        // need to dispatch in order.
        queueDiscreteEvent(null, // Flags that we're not actually blocked on anything as far as we know.
        topLevelType, eventSystemFlags, nativeEvent);
        return;
      }
    
      var blockedOn = attemptToDispatchEvent(topLevelType, eventSystemFlags, nativeEvent);
    
      if (blockedOn === null) {
        // We successfully dispatched this event.
        clearIfContinuousEvent(topLevelType, nativeEvent);
        return;
      }
    
      if (isReplayableDiscreteEvent(topLevelType)) {
        // This this to be replayed later once the target is available.
        queueDiscreteEvent(blockedOn, topLevelType, eventSystemFlags, nativeEvent);
        return;
      }
    
      if (queueIfContinuousEvent(blockedOn, topLevelType, eventSystemFlags, nativeEvent)) {
        return;
      } // We need to clear only if we didn't queue because
      // queueing is accummulative.
    
    
      clearIfContinuousEvent(topLevelType, nativeEvent); // This is not replayable so we'll invoke it but without a target,
      // in case the event system needs to trace it.
    
      if (enableFlareAPI) {
        if (eventSystemFlags & PLUGIN_EVENT_SYSTEM) {
          dispatchEventForPluginEventSystem(topLevelType, eventSystemFlags, nativeEvent, null);
        }
    
        if (eventSystemFlags & RESPONDER_EVENT_SYSTEM) {
          // React Flare event system
          dispatchEventForResponderEventSystem(topLevelType, null, nativeEvent, getEventTarget(nativeEvent), eventSystemFlags);
        }
      } else {
        dispatchEventForPluginEventSystem(topLevelType, eventSystemFlags, nativeEvent, null);
      }
    } // Attempt dispatching an event. Returns a SuspenseInstance or Container if it's blocked.
    
    function attemptToDispatchEvent(topLevelType, eventSystemFlags, nativeEvent) {
      // TODO: Warn if _enabled is false.
      var nativeEventTarget = getEventTarget(nativeEvent);
      var targetInst = getClosestInstanceFromNode(nativeEventTarget);
    
      if (targetInst !== null) {
        var nearestMounted = getNearestMountedFiber(targetInst);
    
        if (nearestMounted === null) {
          // This tree has been unmounted already. Dispatch without a target.
          targetInst = null;
        } else {
          var tag = nearestMounted.tag;
    
          if (tag === SuspenseComponent) {
            var instance = getSuspenseInstanceFromFiber(nearestMounted);
    
            if (instance !== null) {
              // Queue the event to be replayed later. Abort dispatching since we
              // don't want this event dispatched twice through the event system.
              // TODO: If this is the first discrete event in the queue. Schedule an increased
              // priority for this boundary.
              return instance;
            } // This shouldn't happen, something went wrong but to avoid blocking
            // the whole system, dispatch the event without a target.
            // TODO: Warn.
    
    
            targetInst = null;
          } else if (tag === HostRoot) {
            var root = nearestMounted.stateNode;
    
            if (root.hydrate) {
              // If this happens during a replay something went wrong and it might block
              // the whole system.
              return getContainerFromFiber(nearestMounted);
            }
    
            targetInst = null;
          } else if (nearestMounted !== targetInst) {
            // If we get an event (ex: img onload) before committing that
            // component's mount, ignore it for now (that is, treat it as if it was an
            // event on a non-React tree). We might also consider queueing events and
            // dispatching them after the mount.
            targetInst = null;
          }
        }
      }
    
      if (enableFlareAPI) {
        if (eventSystemFlags & PLUGIN_EVENT_SYSTEM) {
          dispatchEventForPluginEventSystem(topLevelType, eventSystemFlags, nativeEvent, targetInst);
        }
    
        if (eventSystemFlags & RESPONDER_EVENT_SYSTEM) {
          // React Flare event system
          dispatchEventForResponderEventSystem(topLevelType, targetInst, nativeEvent, nativeEventTarget, eventSystemFlags);
        }
      } else {
        dispatchEventForPluginEventSystem(topLevelType, eventSystemFlags, nativeEvent, targetInst);
      } // We're not blocked on anything.
    
    
      return null;
    }
    
    /**
     * Checks if an event is supported in the current execution environment.
     *
     * NOTE: This will not work correctly for non-generic events such as `change`,
     * `reset`, `load`, `error`, and `select`.
     *
     * Borrows from Modernizr.
     *
     * @param {string} eventNameSuffix Event name, e.g. "click".
     * @return {boolean} True if the event is supported.
     * @internal
     * @license Modernizr 3.0.0pre (Custom Build) | MIT
     */
    
    function isEventSupported(eventNameSuffix) {
      if (!canUseDOM) {
        return false;
      }
    
      var eventName = 'on' + eventNameSuffix;
      var isSupported = eventName in document;
    
      if (!isSupported) {
        var element = document.createElement('div');
        element.setAttribute(eventName, 'return;');
        isSupported = typeof element[eventName] === 'function';
      }
    
      return isSupported;
    }
    
    /**
     * Summary of `ReactBrowserEventEmitter` event handling:
     *
     *  - Top-level delegation is used to trap most native browser events. This
     *    may only occur in the main thread and is the responsibility of
     *    ReactDOMEventListener, which is injected and can therefore support
     *    pluggable event sources. This is the only work that occurs in the main
     *    thread.
     *
     *  - We normalize and de-duplicate events to account for browser quirks. This
     *    may be done in the worker thread.
     *
     *  - Forward these native events (with the associated top-level type used to
     *    trap it) to `EventPluginHub`, which in turn will ask plugins if they want
     *    to extract any synthetic events.
     *
     *  - The `EventPluginHub` will then process each event by annotating them with
     *    "dispatches", a sequence of listeners and IDs that care about that event.
     *
     *  - The `EventPluginHub` then dispatches the events.
     *
     * Overview of React and the event system:
     *
     * +------------+    .
     * |    DOM     |    .
     * +------------+    .
     *       |           .
     *       v           .
     * +------------+    .
     * | ReactEvent |    .
     * |  Listener  |    .
     * +------------+    .                         +-----------+
     *       |           .               +--------+|SimpleEvent|
     *       |           .               |         |Plugin     |
     * +-----|------+    .               v         +-----------+
     * |     |      |    .    +--------------+                    +------------+
     * |     +-----------.--->|EventPluginHub|                    |    Event   |
     * |            |    .    |              |     +-----------+  | Propagators|
     * | ReactEvent |    .    |              |     |TapEvent   |  |------------|
     * |  Emitter   |    .    |              |<---+|Plugin     |  |other plugin|
     * |            |    .    |              |     +-----------+  |  utilities |
     * |     +-----------.--->|              |                    +------------+
     * |     |      |    .    +--------------+
     * +-----|------+    .                ^        +-----------+
     *       |           .                |        |Enter/Leave|
     *       +           .                +-------+|Plugin     |
     * +-------------+   .                         +-----------+
     * | application |   .
     * |-------------|   .
     * |             |   .
     * |             |   .
     * +-------------+   .
     *                   .
     *    React Core     .  General Purpose Event Plugin System
     */
    
    var PossiblyWeakMap = typeof WeakMap === 'function' ? WeakMap : Map;
    var elementListeningSets = new PossiblyWeakMap();
    function getListeningSetForElement(element) {
      var listeningSet = elementListeningSets.get(element);
    
      if (listeningSet === undefined) {
        listeningSet = new Set();
        elementListeningSets.set(element, listeningSet);
      }
    
      return listeningSet;
    }
    /**
     * We listen for bubbled touch events on the document object.
     *
     * Firefox v8.01 (and possibly others) exhibited strange behavior when
     * mounting `onmousemove` events at some node that was not the document
     * element. The symptoms were that if your mouse is not moving over something
     * contained within that mount point (for example on the background) the
     * top-level listeners for `onmousemove` won't be called. However, if you
     * register the `mousemove` on the document object, then it will of course
     * catch all `mousemove`s. This along with iOS quirks, justifies restricting
     * top-level listeners to the document object only, at least for these
     * movement types of events and possibly all events.
     *
     * @see http://www.quirksmode.org/blog/archives/2010/09/click_event_del.html
     *
     * Also, `keyup`/`keypress`/`keydown` do not bubble to the window on IE, but
     * they bubble to document.
     *
     * @param {string} registrationName Name of listener (e.g. `onClick`).
     * @param {object} mountAt Container where to mount the listener
     */
    
    function listenTo(registrationName, mountAt) {
      var listeningSet = getListeningSetForElement(mountAt);
      var dependencies = registrationNameDependencies[registrationName];
    
      for (var i = 0; i < dependencies.length; i++) {
        var dependency = dependencies[i];
        listenToTopLevel(dependency, mountAt, listeningSet);
      }
    }
    function listenToTopLevel(topLevelType, mountAt, listeningSet) {
      if (!listeningSet.has(topLevelType)) {
        switch (topLevelType) {
          case TOP_SCROLL:
            trapCapturedEvent(TOP_SCROLL, mountAt);
            break;
    
          case TOP_FOCUS:
          case TOP_BLUR:
            trapCapturedEvent(TOP_FOCUS, mountAt);
            trapCapturedEvent(TOP_BLUR, mountAt); // We set the flag for a single dependency later in this function,
            // but this ensures we mark both as attached rather than just one.
    
            listeningSet.add(TOP_BLUR);
            listeningSet.add(TOP_FOCUS);
            break;
    
          case TOP_CANCEL:
          case TOP_CLOSE:
            if (isEventSupported(getRawEventName(topLevelType))) {
              trapCapturedEvent(topLevelType, mountAt);
            }
    
            break;
    
          case TOP_INVALID:
          case TOP_SUBMIT:
          case TOP_RESET:
            // We listen to them on the target DOM elements.
            // Some of them bubble so we don't want them to fire twice.
            break;
    
          default:
            // By default, listen on the top level to all non-media events.
            // Media events don't bubble so adding the listener wouldn't do anything.
            var isMediaEvent = mediaEventTypes.indexOf(topLevelType) !== -1;
    
            if (!isMediaEvent) {
              trapBubbledEvent(topLevelType, mountAt);
            }
    
            break;
        }
    
        listeningSet.add(topLevelType);
      }
    }
    function isListeningToAllDependencies(registrationName, mountAt) {
      var listeningSet = getListeningSetForElement(mountAt);
      var dependencies = registrationNameDependencies[registrationName];
    
      for (var i = 0; i < dependencies.length; i++) {
        var dependency = dependencies[i];
    
        if (!listeningSet.has(dependency)) {
          return false;
        }
      }
    
      return true;
    }
    
    // List derived from Gecko source code:
    // https://github.com/mozilla/gecko-dev/blob/4e638efc71/layout/style/test/property_database.js
    var shorthandToLonghand = {
      animation: ['animationDelay', 'animationDirection', 'animationDuration', 'animationFillMode', 'animationIterationCount', 'animationName', 'animationPlayState', 'animationTimingFunction'],
      background: ['backgroundAttachment', 'backgroundClip', 'backgroundColor', 'backgroundImage', 'backgroundOrigin', 'backgroundPositionX', 'backgroundPositionY', 'backgroundRepeat', 'backgroundSize'],
      backgroundPosition: ['backgroundPositionX', 'backgroundPositionY'],
      border: ['borderBottomColor', 'borderBottomStyle', 'borderBottomWidth', 'borderImageOutset', 'borderImageRepeat', 'borderImageSlice', 'borderImageSource', 'borderImageWidth', 'borderLeftColor', 'borderLeftStyle', 'borderLeftWidth', 'borderRightColor', 'borderRightStyle', 'borderRightWidth', 'borderTopColor', 'borderTopStyle', 'borderTopWidth'],
      borderBlockEnd: ['borderBlockEndColor', 'borderBlockEndStyle', 'borderBlockEndWidth'],
      borderBlockStart: ['borderBlockStartColor', 'borderBlockStartStyle', 'borderBlockStartWidth'],
      borderBottom: ['borderBottomColor', 'borderBottomStyle', 'borderBottomWidth'],
      borderColor: ['borderBottomColor', 'borderLeftColor', 'borderRightColor', 'borderTopColor'],
      borderImage: ['borderImageOutset', 'borderImageRepeat', 'borderImageSlice', 'borderImageSource', 'borderImageWidth'],
      borderInlineEnd: ['borderInlineEndColor', 'borderInlineEndStyle', 'borderInlineEndWidth'],
      borderInlineStart: ['borderInlineStartColor', 'borderInlineStartStyle', 'borderInlineStartWidth'],
      borderLeft: ['borderLeftColor', 'borderLeftStyle', 'borderLeftWidth'],
      borderRadius: ['borderBottomLeftRadius', 'borderBottomRightRadius', 'borderTopLeftRadius', 'borderTopRightRadius'],
      borderRight: ['borderRightColor', 'borderRightStyle', 'borderRightWidth'],
      borderStyle: ['borderBottomStyle', 'borderLeftStyle', 'borderRightStyle', 'borderTopStyle'],
      borderTop: ['borderTopColor', 'borderTopStyle', 'borderTopWidth'],
      borderWidth: ['borderBottomWidth', 'borderLeftWidth', 'borderRightWidth', 'borderTopWidth'],
      columnRule: ['columnRuleColor', 'columnRuleStyle', 'columnRuleWidth'],
      columns: ['columnCount', 'columnWidth'],
      flex: ['flexBasis', 'flexGrow', 'flexShrink'],
      flexFlow: ['flexDirection', 'flexWrap'],
      font: ['fontFamily', 'fontFeatureSettings', 'fontKerning', 'fontLanguageOverride', 'fontSize', 'fontSizeAdjust', 'fontStretch', 'fontStyle', 'fontVariant', 'fontVariantAlternates', 'fontVariantCaps', 'fontVariantEastAsian', 'fontVariantLigatures', 'fontVariantNumeric', 'fontVariantPosition', 'fontWeight', 'lineHeight'],
      fontVariant: ['fontVariantAlternates', 'fontVariantCaps', 'fontVariantEastAsian', 'fontVariantLigatures', 'fontVariantNumeric', 'fontVariantPosition'],
      gap: ['columnGap', 'rowGap'],
      grid: ['gridAutoColumns', 'gridAutoFlow', 'gridAutoRows', 'gridTemplateAreas', 'gridTemplateColumns', 'gridTemplateRows'],
      gridArea: ['gridColumnEnd', 'gridColumnStart', 'gridRowEnd', 'gridRowStart'],
      gridColumn: ['gridColumnEnd', 'gridColumnStart'],
      gridColumnGap: ['columnGap'],
      gridGap: ['columnGap', 'rowGap'],
      gridRow: ['gridRowEnd', 'gridRowStart'],
      gridRowGap: ['rowGap'],
      gridTemplate: ['gridTemplateAreas', 'gridTemplateColumns', 'gridTemplateRows'],
      listStyle: ['listStyleImage', 'listStylePosition', 'listStyleType'],
      margin: ['marginBottom', 'marginLeft', 'marginRight', 'marginTop'],
      marker: ['markerEnd', 'markerMid', 'markerStart'],
      mask: ['maskClip', 'maskComposite', 'maskImage', 'maskMode', 'maskOrigin', 'maskPositionX', 'maskPositionY', 'maskRepeat', 'maskSize'],
      maskPosition: ['maskPositionX', 'maskPositionY'],
      outline: ['outlineColor', 'outlineStyle', 'outlineWidth'],
      overflow: ['overflowX', 'overflowY'],
      padding: ['paddingBottom', 'paddingLeft', 'paddingRight', 'paddingTop'],
      placeContent: ['alignContent', 'justifyContent'],
      placeItems: ['alignItems', 'justifyItems'],
      placeSelf: ['alignSelf', 'justifySelf'],
      textDecoration: ['textDecorationColor', 'textDecorationLine', 'textDecorationStyle'],
      textEmphasis: ['textEmphasisColor', 'textEmphasisStyle'],
      transition: ['transitionDelay', 'transitionDuration', 'transitionProperty', 'transitionTimingFunction'],
      wordWrap: ['overflowWrap']
    };
    
    /**
     * CSS properties which accept numbers but are not in units of "px".
     */
    var isUnitlessNumber = {
      animationIterationCount: true,
      borderImageOutset: true,
      borderImageSlice: true,
      borderImageWidth: true,
      boxFlex: true,
      boxFlexGroup: true,
      boxOrdinalGroup: true,
      columnCount: true,
      columns: true,
      flex: true,
      flexGrow: true,
      flexPositive: true,
      flexShrink: true,
      flexNegative: true,
      flexOrder: true,
      gridArea: true,
      gridRow: true,
      gridRowEnd: true,
      gridRowSpan: true,
      gridRowStart: true,
      gridColumn: true,
      gridColumnEnd: true,
      gridColumnSpan: true,
      gridColumnStart: true,
      fontWeight: true,
      lineClamp: true,
      lineHeight: true,
      opacity: true,
      order: true,
      orphans: true,
      tabSize: true,
      widows: true,
      zIndex: true,
      zoom: true,
      // SVG-related properties
      fillOpacity: true,
      floodOpacity: true,
      stopOpacity: true,
      strokeDasharray: true,
      strokeDashoffset: true,
      strokeMiterlimit: true,
      strokeOpacity: true,
      strokeWidth: true
    };
    /**
     * @param {string} prefix vendor-specific prefix, eg: Webkit
     * @param {string} key style name, eg: transitionDuration
     * @return {string} style name prefixed with `prefix`, properly camelCased, eg:
     * WebkitTransitionDuration
     */
    
    function prefixKey(prefix, key) {
      return prefix + key.charAt(0).toUpperCase() + key.substring(1);
    }
    /**
     * Support style names that may come passed in prefixed by adding permutations
     * of vendor prefixes.
     */
    
    
    var prefixes = ['Webkit', 'ms', 'Moz', 'O']; // Using Object.keys here, or else the vanilla for-in loop makes IE8 go into an
    // infinite loop, because it iterates over the newly added props too.
    
    Object.keys(isUnitlessNumber).forEach(function (prop) {
      prefixes.forEach(function (prefix) {
        isUnitlessNumber[prefixKey(prefix, prop)] = isUnitlessNumber[prop];
      });
    });
    
    /**
     * Convert a value into the proper css writable value. The style name `name`
     * should be logical (no hyphens), as specified
     * in `CSSProperty.isUnitlessNumber`.
     *
     * @param {string} name CSS property name such as `topMargin`.
     * @param {*} value CSS property value such as `10px`.
     * @return {string} Normalized style value with dimensions applied.
     */
    
    function dangerousStyleValue(name, value, isCustomProperty) {
      // Note that we've removed escapeTextForBrowser() calls here since the
      // whole string will be escaped when the attribute is injected into
      // the markup. If you provide unsafe user data here they can inject
      // arbitrary CSS which may be problematic (I couldn't repro this):
      // https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet
      // http://www.thespanner.co.uk/2007/11/26/ultimate-xss-css-injection/
      // This is not an XSS hole but instead a potential CSS injection issue
      // which has lead to a greater discussion about how we're going to
      // trust URLs moving forward. See #2115901
      var isEmpty = value == null || typeof value === 'boolean' || value === '';
    
      if (isEmpty) {
        return '';
      }
    
      if (!isCustomProperty && typeof value === 'number' && value !== 0 && !(isUnitlessNumber.hasOwnProperty(name) && isUnitlessNumber[name])) {
        return value + 'px'; // Presumes implicit 'px' suffix for unitless numbers
      }
    
      return ('' + value).trim();
    }
    
    var uppercasePattern = /([A-Z])/g;
    var msPattern = /^ms-/;
    /**
     * Hyphenates a camelcased CSS property name, for example:
     *
     *   > hyphenateStyleName('backgroundColor')
     *   < "background-color"
     *   > hyphenateStyleName('MozTransition')
     *   < "-moz-transition"
     *   > hyphenateStyleName('msTransition')
     *   < "-ms-transition"
     *
     * As Modernizr suggests (http://modernizr.com/docs/#prefixed), an `ms` prefix
     * is converted to `-ms-`.
     */
    
    function hyphenateStyleName(name) {
      return name.replace(uppercasePattern, '-$1').toLowerCase().replace(msPattern, '-ms-');
    }
    
    var warnValidStyle = function () {};
    
    {
      // 'msTransform' is correct, but the other prefixes should be capitalized
      var badVendoredStyleNamePattern = /^(?:webkit|moz|o)[A-Z]/;
      var msPattern$1 = /^-ms-/;
      var hyphenPattern = /-(.)/g; // style values shouldn't contain a semicolon
    
      var badStyleValueWithSemicolonPattern = /;\s*$/;
      var warnedStyleNames = {};
      var warnedStyleValues = {};
      var warnedForNaNValue = false;
      var warnedForInfinityValue = false;
    
      var camelize = function (string) {
        return string.replace(hyphenPattern, function (_, character) {
          return character.toUpperCase();
        });
      };
    
      var warnHyphenatedStyleName = function (name) {
        if (warnedStyleNames.hasOwnProperty(name) && warnedStyleNames[name]) {
          return;
        }
    
        warnedStyleNames[name] = true;
        warning$1(false, 'Unsupported style property %s. Did you mean %s?', name, // As Andi Smith suggests
        // (http://www.andismith.com/blog/2012/02/modernizr-prefixed/), an `-ms` prefix
        // is converted to lowercase `ms`.
        camelize(name.replace(msPattern$1, 'ms-')));
      };
    
      var warnBadVendoredStyleName = function (name) {
        if (warnedStyleNames.hasOwnProperty(name) && warnedStyleNames[name]) {
          return;
        }
    
        warnedStyleNames[name] = true;
        warning$1(false, 'Unsupported vendor-prefixed style property %s. Did you mean %s?', name, name.charAt(0).toUpperCase() + name.slice(1));
      };
    
      var warnStyleValueWithSemicolon = function (name, value) {
        if (warnedStyleValues.hasOwnProperty(value) && warnedStyleValues[value]) {
          return;
        }
    
        warnedStyleValues[value] = true;
        warning$1(false, "Style property values shouldn't contain a semicolon. " + 'Try "%s: %s" instead.', name, value.replace(badStyleValueWithSemicolonPattern, ''));
      };
    
      var warnStyleValueIsNaN = function (name, value) {
        if (warnedForNaNValue) {
          return;
        }
    
        warnedForNaNValue = true;
        warning$1(false, '`NaN` is an invalid value for the `%s` css style property.', name);
      };
    
      var warnStyleValueIsInfinity = function (name, value) {
        if (warnedForInfinityValue) {
          return;
        }
    
        warnedForInfinityValue = true;
        warning$1(false, '`Infinity` is an invalid value for the `%s` css style property.', name);
      };
    
      warnValidStyle = function (name, value) {
        if (name.indexOf('-') > -1) {
          warnHyphenatedStyleName(name);
        } else if (badVendoredStyleNamePattern.test(name)) {
          warnBadVendoredStyleName(name);
        } else if (badStyleValueWithSemicolonPattern.test(value)) {
          warnStyleValueWithSemicolon(name, value);
        }
    
        if (typeof value === 'number') {
          if (isNaN(value)) {
            warnStyleValueIsNaN(name, value);
          } else if (!isFinite(value)) {
            warnStyleValueIsInfinity(name, value);
          }
        }
      };
    }
    
    var warnValidStyle$1 = warnValidStyle;
    
    /**
     * Operations for dealing with CSS properties.
     */
    
    /**
     * This creates a string that is expected to be equivalent to the style
     * attribute generated by server-side rendering. It by-passes warnings and
     * security checks so it's not safe to use this value for anything other than
     * comparison. It is only used in DEV for SSR validation.
     */
    
    function createDangerousStringForStyles(styles) {
      {
        var serialized = '';
        var delimiter = '';
    
        for (var styleName in styles) {
          if (!styles.hasOwnProperty(styleName)) {
            continue;
          }
    
          var styleValue = styles[styleName];
    
          if (styleValue != null) {
            var isCustomProperty = styleName.indexOf('--') === 0;
            serialized += delimiter + (isCustomProperty ? styleName : hyphenateStyleName(styleName)) + ':';
            serialized += dangerousStyleValue(styleName, styleValue, isCustomProperty);
            delimiter = ';';
          }
        }
    
        return serialized || null;
      }
    }
    /**
     * Sets the value for multiple styles on a node.  If a value is specified as
     * '' (empty string), the corresponding style property will be unset.
     *
     * @param {DOMElement} node
     * @param {object} styles
     */
    
    function setValueForStyles(node, styles) {
      var style = node.style;
    
      for (var styleName in styles) {
        if (!styles.hasOwnProperty(styleName)) {
          continue;
        }
    
        var isCustomProperty = styleName.indexOf('--') === 0;
    
        {
          if (!isCustomProperty) {
            warnValidStyle$1(styleName, styles[styleName]);
          }
        }
    
        var styleValue = dangerousStyleValue(styleName, styles[styleName], isCustomProperty);
    
        if (styleName === 'float') {
          styleName = 'cssFloat';
        }
    
        if (isCustomProperty) {
          style.setProperty(styleName, styleValue);
        } else {
          style[styleName] = styleValue;
        }
      }
    }
    
    function isValueEmpty(value) {
      return value == null || typeof value === 'boolean' || value === '';
    }
    /**
     * Given {color: 'red', overflow: 'hidden'} returns {
     *   color: 'color',
     *   overflowX: 'overflow',
     *   overflowY: 'overflow',
     * }. This can be read as "the overflowY property was set by the overflow
     * shorthand". That is, the values are the property that each was derived from.
     */
    
    
    function expandShorthandMap(styles) {
      var expanded = {};
    
      for (var key in styles) {
        var longhands = shorthandToLonghand[key] || [key];
    
        for (var i = 0; i < longhands.length; i++) {
          expanded[longhands[i]] = key;
        }
      }
    
      return expanded;
    }
    /**
     * When mixing shorthand and longhand property names, we warn during updates if
     * we expect an incorrect result to occur. In particular, we warn for:
     *
     * Updating a shorthand property (longhand gets overwritten):
     *   {font: 'foo', fontVariant: 'bar'} -> {font: 'baz', fontVariant: 'bar'}
     *   becomes .style.font = 'baz'
     * Removing a shorthand property (longhand gets lost too):
     *   {font: 'foo', fontVariant: 'bar'} -> {fontVariant: 'bar'}
     *   becomes .style.font = ''
     * Removing a longhand property (should revert to shorthand; doesn't):
     *   {font: 'foo', fontVariant: 'bar'} -> {font: 'foo'}
     *   becomes .style.fontVariant = ''
     */
    
    
    function validateShorthandPropertyCollisionInDev(styleUpdates, nextStyles) {
      if (!warnAboutShorthandPropertyCollision) {
        return;
      }
    
      if (!nextStyles) {
        return;
      }
    
      var expandedUpdates = expandShorthandMap(styleUpdates);
      var expandedStyles = expandShorthandMap(nextStyles);
      var warnedAbout = {};
    
      for (var key in expandedUpdates) {
        var originalKey = expandedUpdates[key];
        var correctOriginalKey = expandedStyles[key];
    
        if (correctOriginalKey && originalKey !== correctOriginalKey) {
          var warningKey = originalKey + ',' + correctOriginalKey;
    
          if (warnedAbout[warningKey]) {
            continue;
          }
    
          warnedAbout[warningKey] = true;
          warning$1(false, '%s a style property during rerender (%s) when a ' + 'conflicting property is set (%s) can lead to styling bugs. To ' + "avoid this, don't mix shorthand and non-shorthand properties " + 'for the same value; instead, replace the shorthand with ' + 'separate values.', isValueEmpty(styleUpdates[originalKey]) ? 'Removing' : 'Updating', originalKey, correctOriginalKey);
        }
      }
    }
    
    // For HTML, certain tags should omit their close tag. We keep a whitelist for
    // those special-case tags.
    var omittedCloseTags = {
      area: true,
      base: true,
      br: true,
      col: true,
      embed: true,
      hr: true,
      img: true,
      input: true,
      keygen: true,
      link: true,
      meta: true,
      param: true,
      source: true,
      track: true,
      wbr: true // NOTE: menuitem's close tag should be omitted, but that causes problems.
    
    };
    
    // `omittedCloseTags` except that `menuitem` should still have its closing tag.
    
    var voidElementTags = _assign({
      menuitem: true
    }, omittedCloseTags);
    
    // or add stack by default to invariants where possible.
    
    var HTML$1 = '__html';
    var ReactDebugCurrentFrame$3 = null;
    
    {
      ReactDebugCurrentFrame$3 = ReactSharedInternals.ReactDebugCurrentFrame;
    }
    
    function assertValidProps(tag, props) {
      if (!props) {
        return;
      } // Note the use of `==` which checks for null or undefined.
    
    
      if (voidElementTags[tag]) {
        (function () {
          if (!(props.children == null && props.dangerouslySetInnerHTML == null)) {
            {
              throw ReactError(Error(tag + " is a void element tag and must neither have `children` nor use `dangerouslySetInnerHTML`." + (ReactDebugCurrentFrame$3.getStackAddendum())));
            }
          }
        })();
      }
    
      if (props.dangerouslySetInnerHTML != null) {
        (function () {
          if (!(props.children == null)) {
            {
              throw ReactError(Error("Can only set one of `children` or `props.dangerouslySetInnerHTML`."));
            }
          }
        })();
    
        (function () {
          if (!(typeof props.dangerouslySetInnerHTML === 'object' && HTML$1 in props.dangerouslySetInnerHTML)) {
            {
              throw ReactError(Error("`props.dangerouslySetInnerHTML` must be in the form `{__html: ...}`. Please visit https://fb.me/react-invariant-dangerously-set-inner-html for more information."));
            }
          }
        })();
      }
    
      {
        !(props.suppressContentEditableWarning || !props.contentEditable || props.children == null) ? warning$1(false, 'A component is `contentEditable` and contains `children` managed by ' + 'React. It is now your responsibility to guarantee that none of ' + 'those nodes are unexpectedly modified or duplicated. This is ' + 'probably not intentional.') : void 0;
      }
    
      (function () {
        if (!(props.style == null || typeof props.style === 'object')) {
          {
            throw ReactError(Error("The `style` prop expects a mapping from style properties to values, not a string. For example, style={{marginRight: spacing + 'em'}} when using JSX." + (ReactDebugCurrentFrame$3.getStackAddendum())));
          }
        }
      })();
    }
    
    function isCustomComponent(tagName, props) {
      if (tagName.indexOf('-') === -1) {
        return typeof props.is === 'string';
      }
    
      switch (tagName) {
        // These are reserved SVG and MathML elements.
        // We don't mind this whitelist too much because we expect it to never grow.
        // The alternative is to track the namespace in a few places which is convoluted.
        // https://w3c.github.io/webcomponents/spec/custom/#custom-elements-core-concepts
        case 'annotation-xml':
        case 'color-profile':
        case 'font-face':
        case 'font-face-src':
        case 'font-face-uri':
        case 'font-face-format':
        case 'font-face-name':
        case 'missing-glyph':
          return false;
    
        default:
          return true;
      }
    }
    
    // When adding attributes to the HTML or SVG whitelist, be sure to
    // also add them to this module to ensure casing and incorrect name
    // warnings.
    var possibleStandardNames = {
      // HTML
      accept: 'accept',
      acceptcharset: 'acceptCharset',
      'accept-charset': 'acceptCharset',
      accesskey: 'accessKey',
      action: 'action',
      allowfullscreen: 'allowFullScreen',
      alt: 'alt',
      as: 'as',
      async: 'async',
      autocapitalize: 'autoCapitalize',
      autocomplete: 'autoComplete',
      autocorrect: 'autoCorrect',
      autofocus: 'autoFocus',
      autoplay: 'autoPlay',
      autosave: 'autoSave',
      capture: 'capture',
      cellpadding: 'cellPadding',
      cellspacing: 'cellSpacing',
      challenge: 'challenge',
      charset: 'charSet',
      checked: 'checked',
      children: 'children',
      cite: 'cite',
      class: 'className',
      classid: 'classID',
      classname: 'className',
      cols: 'cols',
      colspan: 'colSpan',
      content: 'content',
      contenteditable: 'contentEditable',
      contextmenu: 'contextMenu',
      controls: 'controls',
      controlslist: 'controlsList',
      coords: 'coords',
      crossorigin: 'crossOrigin',
      dangerouslysetinnerhtml: 'dangerouslySetInnerHTML',
      data: 'data',
      datetime: 'dateTime',
      default: 'default',
      defaultchecked: 'defaultChecked',
      defaultvalue: 'defaultValue',
      defer: 'defer',
      dir: 'dir',
      disabled: 'disabled',
      disablepictureinpicture: 'disablePictureInPicture',
      download: 'download',
      draggable: 'draggable',
      enctype: 'encType',
      for: 'htmlFor',
      form: 'form',
      formmethod: 'formMethod',
      formaction: 'formAction',
      formenctype: 'formEncType',
      formnovalidate: 'formNoValidate',
      formtarget: 'formTarget',
      frameborder: 'frameBorder',
      headers: 'headers',
      height: 'height',
      hidden: 'hidden',
      high: 'high',
      href: 'href',
      hreflang: 'hrefLang',
      htmlfor: 'htmlFor',
      httpequiv: 'httpEquiv',
      'http-equiv': 'httpEquiv',
      icon: 'icon',
      id: 'id',
      innerhtml: 'innerHTML',
      inputmode: 'inputMode',
      integrity: 'integrity',
      is: 'is',
      itemid: 'itemID',
      itemprop: 'itemProp',
      itemref: 'itemRef',
      itemscope: 'itemScope',
      itemtype: 'itemType',
      keyparams: 'keyParams',
      keytype: 'keyType',
      kind: 'kind',
      label: 'label',
      lang: 'lang',
      list: 'list',
      loop: 'loop',
      low: 'low',
      manifest: 'manifest',
      marginwidth: 'marginWidth',
      marginheight: 'marginHeight',
      max: 'max',
      maxlength: 'maxLength',
      media: 'media',
      mediagroup: 'mediaGroup',
      method: 'method',
      min: 'min',
      minlength: 'minLength',
      multiple: 'multiple',
      muted: 'muted',
      name: 'name',
      nomodule: 'noModule',
      nonce: 'nonce',
      novalidate: 'noValidate',
      open: 'open',
      optimum: 'optimum',
      pattern: 'pattern',
      placeholder: 'placeholder',
      playsinline: 'playsInline',
      poster: 'poster',
      preload: 'preload',
      profile: 'profile',
      radiogroup: 'radioGroup',
      readonly: 'readOnly',
      referrerpolicy: 'referrerPolicy',
      rel: 'rel',
      required: 'required',
      reversed: 'reversed',
      role: 'role',
      rows: 'rows',
      rowspan: 'rowSpan',
      sandbox: 'sandbox',
      scope: 'scope',
      scoped: 'scoped',
      scrolling: 'scrolling',
      seamless: 'seamless',
      selected: 'selected',
      shape: 'shape',
      size: 'size',
      sizes: 'sizes',
      span: 'span',
      spellcheck: 'spellCheck',
      src: 'src',
      srcdoc: 'srcDoc',
      srclang: 'srcLang',
      srcset: 'srcSet',
      start: 'start',
      step: 'step',
      style: 'style',
      summary: 'summary',
      tabindex: 'tabIndex',
      target: 'target',
      title: 'title',
      type: 'type',
      usemap: 'useMap',
      value: 'value',
      width: 'width',
      wmode: 'wmode',
      wrap: 'wrap',
      // SVG
      about: 'about',
      accentheight: 'accentHeight',
      'accent-height': 'accentHeight',
      accumulate: 'accumulate',
      additive: 'additive',
      alignmentbaseline: 'alignmentBaseline',
      'alignment-baseline': 'alignmentBaseline',
      allowreorder: 'allowReorder',
      alphabetic: 'alphabetic',
      amplitude: 'amplitude',
      arabicform: 'arabicForm',
      'arabic-form': 'arabicForm',
      ascent: 'ascent',
      attributename: 'attributeName',
      attributetype: 'attributeType',
      autoreverse: 'autoReverse',
      azimuth: 'azimuth',
      basefrequency: 'baseFrequency',
      baselineshift: 'baselineShift',
      'baseline-shift': 'baselineShift',
      baseprofile: 'baseProfile',
      bbox: 'bbox',
      begin: 'begin',
      bias: 'bias',
      by: 'by',
      calcmode: 'calcMode',
      capheight: 'capHeight',
      'cap-height': 'capHeight',
      clip: 'clip',
      clippath: 'clipPath',
      'clip-path': 'clipPath',
      clippathunits: 'clipPathUnits',
      cliprule: 'clipRule',
      'clip-rule': 'clipRule',
      color: 'color',
      colorinterpolation: 'colorInterpolation',
      'color-interpolation': 'colorInterpolation',
      colorinterpolationfilters: 'colorInterpolationFilters',
      'color-interpolation-filters': 'colorInterpolationFilters',
      colorprofile: 'colorProfile',
      'color-profile': 'colorProfile',
      colorrendering: 'colorRendering',
      'color-rendering': 'colorRendering',
      contentscripttype: 'contentScriptType',
      contentstyletype: 'contentStyleType',
      cursor: 'cursor',
      cx: 'cx',
      cy: 'cy',
      d: 'd',
      datatype: 'datatype',
      decelerate: 'decelerate',
      descent: 'descent',
      diffuseconstant: 'diffuseConstant',
      direction: 'direction',
      display: 'display',
      divisor: 'divisor',
      dominantbaseline: 'dominantBaseline',
      'dominant-baseline': 'dominantBaseline',
      dur: 'dur',
      dx: 'dx',
      dy: 'dy',
      edgemode: 'edgeMode',
      elevation: 'elevation',
      enablebackground: 'enableBackground',
      'enable-background': 'enableBackground',
      end: 'end',
      exponent: 'exponent',
      externalresourcesrequired: 'externalResourcesRequired',
      fill: 'fill',
      fillopacity: 'fillOpacity',
      'fill-opacity': 'fillOpacity',
      fillrule: 'fillRule',
      'fill-rule': 'fillRule',
      filter: 'filter',
      filterres: 'filterRes',
      filterunits: 'filterUnits',
      floodopacity: 'floodOpacity',
      'flood-opacity': 'floodOpacity',
      floodcolor: 'floodColor',
      'flood-color': 'floodColor',
      focusable: 'focusable',
      fontfamily: 'fontFamily',
      'font-family': 'fontFamily',
      fontsize: 'fontSize',
      'font-size': 'fontSize',
      fontsizeadjust: 'fontSizeAdjust',
      'font-size-adjust': 'fontSizeAdjust',
      fontstretch: 'fontStretch',
      'font-stretch': 'fontStretch',
      fontstyle: 'fontStyle',
      'font-style': 'fontStyle',
      fontvariant: 'fontVariant',
      'font-variant': 'fontVariant',
      fontweight: 'fontWeight',
      'font-weight': 'fontWeight',
      format: 'format',
      from: 'from',
      fx: 'fx',
      fy: 'fy',
      g1: 'g1',
      g2: 'g2',
      glyphname: 'glyphName',
      'glyph-name': 'glyphName',
      glyphorientationhorizontal: 'glyphOrientationHorizontal',
      'glyph-orientation-horizontal': 'glyphOrientationHorizontal',
      glyphorientationvertical: 'glyphOrientationVertical',
      'glyph-orientation-vertical': 'glyphOrientationVertical',
      glyphref: 'glyphRef',
      gradienttransform: 'gradientTransform',
      gradientunits: 'gradientUnits',
      hanging: 'hanging',
      horizadvx: 'horizAdvX',
      'horiz-adv-x': 'horizAdvX',
      horizoriginx: 'horizOriginX',
      'horiz-origin-x': 'horizOriginX',
      ideographic: 'ideographic',
      imagerendering: 'imageRendering',
      'image-rendering': 'imageRendering',
      in2: 'in2',
      in: 'in',
      inlist: 'inlist',
      intercept: 'intercept',
      k1: 'k1',
      k2: 'k2',
      k3: 'k3',
      k4: 'k4',
      k: 'k',
      kernelmatrix: 'kernelMatrix',
      kernelunitlength: 'kernelUnitLength',
      kerning: 'kerning',
      keypoints: 'keyPoints',
      keysplines: 'keySplines',
      keytimes: 'keyTimes',
      lengthadjust: 'lengthAdjust',
      letterspacing: 'letterSpacing',
      'letter-spacing': 'letterSpacing',
      lightingcolor: 'lightingColor',
      'lighting-color': 'lightingColor',
      limitingconeangle: 'limitingConeAngle',
      local: 'local',
      markerend: 'markerEnd',
      'marker-end': 'markerEnd',
      markerheight: 'markerHeight',
      markermid: 'markerMid',
      'marker-mid': 'markerMid',
      markerstart: 'markerStart',
      'marker-start': 'markerStart',
      markerunits: 'markerUnits',
      markerwidth: 'markerWidth',
      mask: 'mask',
      maskcontentunits: 'maskContentUnits',
      maskunits: 'maskUnits',
      mathematical: 'mathematical',
      mode: 'mode',
      numoctaves: 'numOctaves',
      offset: 'offset',
      opacity: 'opacity',
      operator: 'operator',
      order: 'order',
      orient: 'orient',
      orientation: 'orientation',
      origin: 'origin',
      overflow: 'overflow',
      overlineposition: 'overlinePosition',
      'overline-position': 'overlinePosition',
      overlinethickness: 'overlineThickness',
      'overline-thickness': 'overlineThickness',
      paintorder: 'paintOrder',
      'paint-order': 'paintOrder',
      panose1: 'panose1',
      'panose-1': 'panose1',
      pathlength: 'pathLength',
      patterncontentunits: 'patternContentUnits',
      patterntransform: 'patternTransform',
      patternunits: 'patternUnits',
      pointerevents: 'pointerEvents',
      'pointer-events': 'pointerEvents',
      points: 'points',
      pointsatx: 'pointsAtX',
      pointsaty: 'pointsAtY',
      pointsatz: 'pointsAtZ',
      prefix: 'prefix',
      preservealpha: 'preserveAlpha',
      preserveaspectratio: 'preserveAspectRatio',
      primitiveunits: 'primitiveUnits',
      property: 'property',
      r: 'r',
      radius: 'radius',
      refx: 'refX',
      refy: 'refY',
      renderingintent: 'renderingIntent',
      'rendering-intent': 'renderingIntent',
      repeatcount: 'repeatCount',
      repeatdur: 'repeatDur',
      requiredextensions: 'requiredExtensions',
      requiredfeatures: 'requiredFeatures',
      resource: 'resource',
      restart: 'restart',
      result: 'result',
      results: 'results',
      rotate: 'rotate',
      rx: 'rx',
      ry: 'ry',
      scale: 'scale',
      security: 'security',
      seed: 'seed',
      shaperendering: 'shapeRendering',
      'shape-rendering': 'shapeRendering',
      slope: 'slope',
      spacing: 'spacing',
      specularconstant: 'specularConstant',
      specularexponent: 'specularExponent',
      speed: 'speed',
      spreadmethod: 'spreadMethod',
      startoffset: 'startOffset',
      stddeviation: 'stdDeviation',
      stemh: 'stemh',
      stemv: 'stemv',
      stitchtiles: 'stitchTiles',
      stopcolor: 'stopColor',
      'stop-color': 'stopColor',
      stopopacity: 'stopOpacity',
      'stop-opacity': 'stopOpacity',
      strikethroughposition: 'strikethroughPosition',
      'strikethrough-position': 'strikethroughPosition',
      strikethroughthickness: 'strikethroughThickness',
      'strikethrough-thickness': 'strikethroughThickness',
      string: 'string',
      stroke: 'stroke',
      strokedasharray: 'strokeDasharray',
      'stroke-dasharray': 'strokeDasharray',
      strokedashoffset: 'strokeDashoffset',
      'stroke-dashoffset': 'strokeDashoffset',
      strokelinecap: 'strokeLinecap',
      'stroke-linecap': 'strokeLinecap',
      strokelinejoin: 'strokeLinejoin',
      'stroke-linejoin': 'strokeLinejoin',
      strokemiterlimit: 'strokeMiterlimit',
      'stroke-miterlimit': 'strokeMiterlimit',
      strokewidth: 'strokeWidth',
      'stroke-width': 'strokeWidth',
      strokeopacity: 'strokeOpacity',
      'stroke-opacity': 'strokeOpacity',
      suppresscontenteditablewarning: 'suppressContentEditableWarning',
      suppresshydrationwarning: 'suppressHydrationWarning',
      surfacescale: 'surfaceScale',
      systemlanguage: 'systemLanguage',
      tablevalues: 'tableValues',
      targetx: 'targetX',
      targety: 'targetY',
      textanchor: 'textAnchor',
      'text-anchor': 'textAnchor',
      textdecoration: 'textDecoration',
      'text-decoration': 'textDecoration',
      textlength: 'textLength',
      textrendering: 'textRendering',
      'text-rendering': 'textRendering',
      to: 'to',
      transform: 'transform',
      typeof: 'typeof',
      u1: 'u1',
      u2: 'u2',
      underlineposition: 'underlinePosition',
      'underline-position': 'underlinePosition',
      underlinethickness: 'underlineThickness',
      'underline-thickness': 'underlineThickness',
      unicode: 'unicode',
      unicodebidi: 'unicodeBidi',
      'unicode-bidi': 'unicodeBidi',
      unicoderange: 'unicodeRange',
      'unicode-range': 'unicodeRange',
      unitsperem: 'unitsPerEm',
      'units-per-em': 'unitsPerEm',
      unselectable: 'unselectable',
      valphabetic: 'vAlphabetic',
      'v-alphabetic': 'vAlphabetic',
      values: 'values',
      vectoreffect: 'vectorEffect',
      'vector-effect': 'vectorEffect',
      version: 'version',
      vertadvy: 'vertAdvY',
      'vert-adv-y': 'vertAdvY',
      vertoriginx: 'vertOriginX',
      'vert-origin-x': 'vertOriginX',
      vertoriginy: 'vertOriginY',
      'vert-origin-y': 'vertOriginY',
      vhanging: 'vHanging',
      'v-hanging': 'vHanging',
      videographic: 'vIdeographic',
      'v-ideographic': 'vIdeographic',
      viewbox: 'viewBox',
      viewtarget: 'viewTarget',
      visibility: 'visibility',
      vmathematical: 'vMathematical',
      'v-mathematical': 'vMathematical',
      vocab: 'vocab',
      widths: 'widths',
      wordspacing: 'wordSpacing',
      'word-spacing': 'wordSpacing',
      writingmode: 'writingMode',
      'writing-mode': 'writingMode',
      x1: 'x1',
      x2: 'x2',
      x: 'x',
      xchannelselector: 'xChannelSelector',
      xheight: 'xHeight',
      'x-height': 'xHeight',
      xlinkactuate: 'xlinkActuate',
      'xlink:actuate': 'xlinkActuate',
      xlinkarcrole: 'xlinkArcrole',
      'xlink:arcrole': 'xlinkArcrole',
      xlinkhref: 'xlinkHref',
      'xlink:href': 'xlinkHref',
      xlinkrole: 'xlinkRole',
      'xlink:role': 'xlinkRole',
      xlinkshow: 'xlinkShow',
      'xlink:show': 'xlinkShow',
      xlinktitle: 'xlinkTitle',
      'xlink:title': 'xlinkTitle',
      xlinktype: 'xlinkType',
      'xlink:type': 'xlinkType',
      xmlbase: 'xmlBase',
      'xml:base': 'xmlBase',
      xmllang: 'xmlLang',
      'xml:lang': 'xmlLang',
      xmlns: 'xmlns',
      'xml:space': 'xmlSpace',
      xmlnsxlink: 'xmlnsXlink',
      'xmlns:xlink': 'xmlnsXlink',
      xmlspace: 'xmlSpace',
      y1: 'y1',
      y2: 'y2',
      y: 'y',
      ychannelselector: 'yChannelSelector',
      z: 'z',
      zoomandpan: 'zoomAndPan'
    };
    
    var ariaProperties = {
      'aria-current': 0,
      // state
      'aria-details': 0,
      'aria-disabled': 0,
      // state
      'aria-hidden': 0,
      // state
      'aria-invalid': 0,
      // state
      'aria-keyshortcuts': 0,
      'aria-label': 0,
      'aria-roledescription': 0,
      // Widget Attributes
      'aria-autocomplete': 0,
      'aria-checked': 0,
      'aria-expanded': 0,
      'aria-haspopup': 0,
      'aria-level': 0,
      'aria-modal': 0,
      'aria-multiline': 0,
      'aria-multiselectable': 0,
      'aria-orientation': 0,
      'aria-placeholder': 0,
      'aria-pressed': 0,
      'aria-readonly': 0,
      'aria-required': 0,
      'aria-selected': 0,
      'aria-sort': 0,
      'aria-valuemax': 0,
      'aria-valuemin': 0,
      'aria-valuenow': 0,
      'aria-valuetext': 0,
      // Live Region Attributes
      'aria-atomic': 0,
      'aria-busy': 0,
      'aria-live': 0,
      'aria-relevant': 0,
      // Drag-and-Drop Attributes
      'aria-dropeffect': 0,
      'aria-grabbed': 0,
      // Relationship Attributes
      'aria-activedescendant': 0,
      'aria-colcount': 0,
      'aria-colindex': 0,
      'aria-colspan': 0,
      'aria-controls': 0,
      'aria-describedby': 0,
      'aria-errormessage': 0,
      'aria-flowto': 0,
      'aria-labelledby': 0,
      'aria-owns': 0,
      'aria-posinset': 0,
      'aria-rowcount': 0,
      'aria-rowindex': 0,
      'aria-rowspan': 0,
      'aria-setsize': 0
    };
    
    var warnedProperties = {};
    var rARIA = new RegExp('^(aria)-[' + ATTRIBUTE_NAME_CHAR + ']*$');
    var rARIACamel = new RegExp('^(aria)[A-Z][' + ATTRIBUTE_NAME_CHAR + ']*$');
    var hasOwnProperty$1 = Object.prototype.hasOwnProperty;
    
    function validateProperty(tagName, name) {
      if (hasOwnProperty$1.call(warnedProperties, name) && warnedProperties[name]) {
        return true;
      }
    
      if (rARIACamel.test(name)) {
        var ariaName = 'aria-' + name.slice(4).toLowerCase();
        var correctName = ariaProperties.hasOwnProperty(ariaName) ? ariaName : null; // If this is an aria-* attribute, but is not listed in the known DOM
        // DOM properties, then it is an invalid aria-* attribute.
    
        if (correctName == null) {
          warning$1(false, 'Invalid ARIA attribute `%s`. ARIA attributes follow the pattern aria-* and must be lowercase.', name);
          warnedProperties[name] = true;
          return true;
        } // aria-* attributes should be lowercase; suggest the lowercase version.
    
    
        if (name !== correctName) {
          warning$1(false, 'Invalid ARIA attribute `%s`. Did you mean `%s`?', name, correctName);
          warnedProperties[name] = true;
          return true;
        }
      }
    
      if (rARIA.test(name)) {
        var lowerCasedName = name.toLowerCase();
        var standardName = ariaProperties.hasOwnProperty(lowerCasedName) ? lowerCasedName : null; // If this is an aria-* attribute, but is not listed in the known DOM
        // DOM properties, then it is an invalid aria-* attribute.
    
        if (standardName == null) {
          warnedProperties[name] = true;
          return false;
        } // aria-* attributes should be lowercase; suggest the lowercase version.
    
    
        if (name !== standardName) {
          warning$1(false, 'Unknown ARIA attribute `%s`. Did you mean `%s`?', name, standardName);
          warnedProperties[name] = true;
          return true;
        }
      }
    
      return true;
    }
    
    function warnInvalidARIAProps(type, props) {
      var invalidProps = [];
    
      for (var key in props) {
        var isValid = validateProperty(type, key);
    
        if (!isValid) {
          invalidProps.push(key);
        }
      }
    
      var unknownPropString = invalidProps.map(function (prop) {
        return '`' + prop + '`';
      }).join(', ');
    
      if (invalidProps.length === 1) {
        warning$1(false, 'Invalid aria prop %s on <%s> tag. ' + 'For details, see https://fb.me/invalid-aria-prop', unknownPropString, type);
      } else if (invalidProps.length > 1) {
        warning$1(false, 'Invalid aria props %s on <%s> tag. ' + 'For details, see https://fb.me/invalid-aria-prop', unknownPropString, type);
      }
    }
    
    function validateProperties(type, props) {
      if (isCustomComponent(type, props)) {
        return;
      }
    
      warnInvalidARIAProps(type, props);
    }
    
    var didWarnValueNull = false;
    function validateProperties$1(type, props) {
      if (type !== 'input' && type !== 'textarea' && type !== 'select') {
        return;
      }
    
      if (props != null && props.value === null && !didWarnValueNull) {
        didWarnValueNull = true;
    
        if (type === 'select' && props.multiple) {
          warning$1(false, '`value` prop on `%s` should not be null. ' + 'Consider using an empty array when `multiple` is set to `true` ' + 'to clear the component or `undefined` for uncontrolled components.', type);
        } else {
          warning$1(false, '`value` prop on `%s` should not be null. ' + 'Consider using an empty string to clear the component or `undefined` ' + 'for uncontrolled components.', type);
        }
      }
    }
    
    var validateProperty$1 = function () {};
    
    {
      var warnedProperties$1 = {};
      var _hasOwnProperty = Object.prototype.hasOwnProperty;
      var EVENT_NAME_REGEX = /^on./;
      var INVALID_EVENT_NAME_REGEX = /^on[^A-Z]/;
      var rARIA$1 = new RegExp('^(aria)-[' + ATTRIBUTE_NAME_CHAR + ']*$');
      var rARIACamel$1 = new RegExp('^(aria)[A-Z][' + ATTRIBUTE_NAME_CHAR + ']*$');
    
      validateProperty$1 = function (tagName, name, value, canUseEventSystem) {
        if (_hasOwnProperty.call(warnedProperties$1, name) && warnedProperties$1[name]) {
          return true;
        }
    
        var lowerCasedName = name.toLowerCase();
    
        if (lowerCasedName === 'onfocusin' || lowerCasedName === 'onfocusout') {
          warning$1(false, 'React uses onFocus and onBlur instead of onFocusIn and onFocusOut. ' + 'All React events are normalized to bubble, so onFocusIn and onFocusOut ' + 'are not needed/supported by React.');
          warnedProperties$1[name] = true;
          return true;
        } // We can't rely on the event system being injected on the server.
    
    
        if (canUseEventSystem) {
          if (registrationNameModules.hasOwnProperty(name)) {
            return true;
          }
    
          var registrationName = possibleRegistrationNames.hasOwnProperty(lowerCasedName) ? possibleRegistrationNames[lowerCasedName] : null;
    
          if (registrationName != null) {
            warning$1(false, 'Invalid event handler property `%s`. Did you mean `%s`?', name, registrationName);
            warnedProperties$1[name] = true;
            return true;
          }
    
          if (EVENT_NAME_REGEX.test(name)) {
            warning$1(false, 'Unknown event handler property `%s`. It will be ignored.', name);
            warnedProperties$1[name] = true;
            return true;
          }
        } else if (EVENT_NAME_REGEX.test(name)) {
          // If no event plugins have been injected, we are in a server environment.
          // So we can't tell if the event name is correct for sure, but we can filter
          // out known bad ones like `onclick`. We can't suggest a specific replacement though.
          if (INVALID_EVENT_NAME_REGEX.test(name)) {
            warning$1(false, 'Invalid event handler property `%s`. ' + 'React events use the camelCase naming convention, for example `onClick`.', name);
          }
    
          warnedProperties$1[name] = true;
          return true;
        } // Let the ARIA attribute hook validate ARIA attributes
    
    
        if (rARIA$1.test(name) || rARIACamel$1.test(name)) {
          return true;
        }
    
        if (lowerCasedName === 'innerhtml') {
          warning$1(false, 'Directly setting property `innerHTML` is not permitted. ' + 'For more information, lookup documentation on `dangerouslySetInnerHTML`.');
          warnedProperties$1[name] = true;
          return true;
        }
    
        if (lowerCasedName === 'aria') {
          warning$1(false, 'The `aria` attribute is reserved for future use in React. ' + 'Pass individual `aria-` attributes instead.');
          warnedProperties$1[name] = true;
          return true;
        }
    
        if (lowerCasedName === 'is' && value !== null && value !== undefined && typeof value !== 'string') {
          warning$1(false, 'Received a `%s` for a string attribute `is`. If this is expected, cast ' + 'the value to a string.', typeof value);
          warnedProperties$1[name] = true;
          return true;
        }
    
        if (typeof value === 'number' && isNaN(value)) {
          warning$1(false, 'Received NaN for the `%s` attribute. If this is expected, cast ' + 'the value to a string.', name);
          warnedProperties$1[name] = true;
          return true;
        }
    
        var propertyInfo = getPropertyInfo(name);
        var isReserved = propertyInfo !== null && propertyInfo.type === RESERVED; // Known attributes should match the casing specified in the property config.
    
        if (possibleStandardNames.hasOwnProperty(lowerCasedName)) {
          var standardName = possibleStandardNames[lowerCasedName];
    
          if (standardName !== name) {
            warning$1(false, 'Invalid DOM property `%s`. Did you mean `%s`?', name, standardName);
            warnedProperties$1[name] = true;
            return true;
          }
        } else if (!isReserved && name !== lowerCasedName) {
          // Unknown attributes should have lowercase casing since that's how they
          // will be cased anyway with server rendering.
          warning$1(false, 'React does not recognize the `%s` prop on a DOM element. If you ' + 'intentionally want it to appear in the DOM as a custom ' + 'attribute, spell it as lowercase `%s` instead. ' + 'If you accidentally passed it from a parent component, remove ' + 'it from the DOM element.', name, lowerCasedName);
          warnedProperties$1[name] = true;
          return true;
        }
    
        if (typeof value === 'boolean' && shouldRemoveAttributeWithWarning(name, value, propertyInfo, false)) {
          if (value) {
            warning$1(false, 'Received `%s` for a non-boolean attribute `%s`.\n\n' + 'If you want to write it to the DOM, pass a string instead: ' + '%s="%s" or %s={value.toString()}.', value, name, name, value, name);
          } else {
            warning$1(false, 'Received `%s` for a non-boolean attribute `%s`.\n\n' + 'If you want to write it to the DOM, pass a string instead: ' + '%s="%s" or %s={value.toString()}.\n\n' + 'If you used to conditionally omit it with %s={condition && value}, ' + 'pass %s={condition ? value : undefined} instead.', value, name, name, value, name, name, name);
          }
    
          warnedProperties$1[name] = true;
          return true;
        } // Now that we've validated casing, do not validate
        // data types for reserved props
    
    
        if (isReserved) {
          return true;
        } // Warn when a known attribute is a bad type
    
    
        if (shouldRemoveAttributeWithWarning(name, value, propertyInfo, false)) {
          warnedProperties$1[name] = true;
          return false;
        } // Warn when passing the strings 'false' or 'true' into a boolean prop
    
    
        if ((value === 'false' || value === 'true') && propertyInfo !== null && propertyInfo.type === BOOLEAN) {
          warning$1(false, 'Received the string `%s` for the boolean attribute `%s`. ' + '%s ' + 'Did you mean %s={%s}?', value, name, value === 'false' ? 'The browser will interpret it as a truthy value.' : 'Although this works, it will not work as expected if you pass the string "false".', name, value);
          warnedProperties$1[name] = true;
          return true;
        }
    
        return true;
      };
    }
    
    var warnUnknownProperties = function (type, props, canUseEventSystem) {
      var unknownProps = [];
    
      for (var key in props) {
        var isValid = validateProperty$1(type, key, props[key], canUseEventSystem);
    
        if (!isValid) {
          unknownProps.push(key);
        }
      }
    
      var unknownPropString = unknownProps.map(function (prop) {
        return '`' + prop + '`';
      }).join(', ');
    
      if (unknownProps.length === 1) {
        warning$1(false, 'Invalid value for prop %s on <%s> tag. Either remove it from the element, ' + 'or pass a string or number value to keep it in the DOM. ' + 'For details, see https://fb.me/react-attribute-behavior', unknownPropString, type);
      } else if (unknownProps.length > 1) {
        warning$1(false, 'Invalid values for props %s on <%s> tag. Either remove them from the element, ' + 'or pass a string or number value to keep them in the DOM. ' + 'For details, see https://fb.me/react-attribute-behavior', unknownPropString, type);
      }
    };
    
    function validateProperties$2(type, props, canUseEventSystem) {
      if (isCustomComponent(type, props)) {
        return;
      }
    
      warnUnknownProperties(type, props, canUseEventSystem);
    }
    
    // TODO: direct imports like some-package/src/* are bad. Fix me.
    var didWarnInvalidHydration = false;
    var didWarnShadyDOM = false;
    var didWarnScriptTags = false;
    var DANGEROUSLY_SET_INNER_HTML = 'dangerouslySetInnerHTML';
    var SUPPRESS_CONTENT_EDITABLE_WARNING = 'suppressContentEditableWarning';
    var SUPPRESS_HYDRATION_WARNING$1 = 'suppressHydrationWarning';
    var AUTOFOCUS = 'autoFocus';
    var CHILDREN = 'children';
    var STYLE$1 = 'style';
    var HTML = '__html';
    var LISTENERS = 'listeners';
    var HTML_NAMESPACE = Namespaces.html;
    var warnedUnknownTags;
    var suppressHydrationWarning;
    var validatePropertiesInDevelopment;
    var warnForTextDifference;
    var warnForPropDifference;
    var warnForExtraAttributes;
    var warnForInvalidEventListener;
    var canDiffStyleForHydrationWarning;
    var normalizeMarkupForTextOrAttribute;
    var normalizeHTML;
    
    {
      warnedUnknownTags = {
        // Chrome is the only major browser not shipping <time>. But as of July
        // 2017 it intends to ship it due to widespread usage. We intentionally
        // *don't* warn for <time> even if it's unrecognized by Chrome because
        // it soon will be, and many apps have been using it anyway.
        time: true,
        // There are working polyfills for <dialog>. Let people use it.
        dialog: true,
        // Electron ships a custom <webview> tag to display external web content in
        // an isolated frame and process.
        // This tag is not present in non Electron environments such as JSDom which
        // is often used for testing purposes.
        // @see https://electronjs.org/docs/api/webview-tag
        webview: true
      };
    
      validatePropertiesInDevelopment = function (type, props) {
        validateProperties(type, props);
        validateProperties$1(type, props);
        validateProperties$2(type, props,
        /* canUseEventSystem */
        true);
      }; // IE 11 parses & normalizes the style attribute as opposed to other
      // browsers. It adds spaces and sorts the properties in some
      // non-alphabetical order. Handling that would require sorting CSS
      // properties in the client & server versions or applying
      // `expectedStyle` to a temporary DOM node to read its `style` attribute
      // normalized. Since it only affects IE, we're skipping style warnings
      // in that browser completely in favor of doing all that work.
      // See https://github.com/facebook/react/issues/11807
    
    
      canDiffStyleForHydrationWarning = canUseDOM && !document.documentMode; // HTML parsing normalizes CR and CRLF to LF.
      // It also can turn \u0000 into \uFFFD inside attributes.
      // https://www.w3.org/TR/html5/single-page.html#preprocessing-the-input-stream
      // If we have a mismatch, it might be caused by that.
      // We will still patch up in this case but not fire the warning.
    
      var NORMALIZE_NEWLINES_REGEX = /\r\n?/g;
      var NORMALIZE_NULL_AND_REPLACEMENT_REGEX = /\u0000|\uFFFD/g;
    
      normalizeMarkupForTextOrAttribute = function (markup) {
        var markupString = typeof markup === 'string' ? markup : '' + markup;
        return markupString.replace(NORMALIZE_NEWLINES_REGEX, '\n').replace(NORMALIZE_NULL_AND_REPLACEMENT_REGEX, '');
      };
    
      warnForTextDifference = function (serverText, clientText) {
        if (didWarnInvalidHydration) {
          return;
        }
    
        var normalizedClientText = normalizeMarkupForTextOrAttribute(clientText);
        var normalizedServerText = normalizeMarkupForTextOrAttribute(serverText);
    
        if (normalizedServerText === normalizedClientText) {
          return;
        }
    
        didWarnInvalidHydration = true;
        warningWithoutStack$1(false, 'Text content did not match. Server: "%s" Client: "%s"', normalizedServerText, normalizedClientText);
      };
    
      warnForPropDifference = function (propName, serverValue, clientValue) {
        if (didWarnInvalidHydration) {
          return;
        }
    
        var normalizedClientValue = normalizeMarkupForTextOrAttribute(clientValue);
        var normalizedServerValue = normalizeMarkupForTextOrAttribute(serverValue);
    
        if (normalizedServerValue === normalizedClientValue) {
          return;
        }
    
        didWarnInvalidHydration = true;
        warningWithoutStack$1(false, 'Prop `%s` did not match. Server: %s Client: %s', propName, JSON.stringify(normalizedServerValue), JSON.stringify(normalizedClientValue));
      };
    
      warnForExtraAttributes = function (attributeNames) {
        if (didWarnInvalidHydration) {
          return;
        }
    
        didWarnInvalidHydration = true;
        var names = [];
        attributeNames.forEach(function (name) {
          names.push(name);
        });
        warningWithoutStack$1(false, 'Extra attributes from the server: %s', names);
      };
    
      warnForInvalidEventListener = function (registrationName, listener) {
        if (listener === false) {
          warning$1(false, 'Expected `%s` listener to be a function, instead got `false`.\n\n' + 'If you used to conditionally omit it with %s={condition && value}, ' + 'pass %s={condition ? value : undefined} instead.', registrationName, registrationName, registrationName);
        } else {
          warning$1(false, 'Expected `%s` listener to be a function, instead got a value of `%s` type.', registrationName, typeof listener);
        }
      }; // Parse the HTML and read it back to normalize the HTML string so that it
      // can be used for comparison.
    
    
      normalizeHTML = function (parent, html) {
        // We could have created a separate document here to avoid
        // re-initializing custom elements if they exist. But this breaks
        // how <noscript> is being handled. So we use the same document.
        // See the discussion in https://github.com/facebook/react/pull/11157.
        var testElement = parent.namespaceURI === HTML_NAMESPACE ? parent.ownerDocument.createElement(parent.tagName) : parent.ownerDocument.createElementNS(parent.namespaceURI, parent.tagName);
        testElement.innerHTML = html;
        return testElement.innerHTML;
      };
    }
    
    function ensureListeningTo(rootContainerElement, registrationName) {
      var isDocumentOrFragment = rootContainerElement.nodeType === DOCUMENT_NODE || rootContainerElement.nodeType === DOCUMENT_FRAGMENT_NODE;
      var doc = isDocumentOrFragment ? rootContainerElement : rootContainerElement.ownerDocument;
      listenTo(registrationName, doc);
    }
    
    function getOwnerDocumentFromRootContainer(rootContainerElement) {
      return rootContainerElement.nodeType === DOCUMENT_NODE ? rootContainerElement : rootContainerElement.ownerDocument;
    }
    
    function noop() {}
    
    function trapClickOnNonInteractiveElement(node) {
      // Mobile Safari does not fire properly bubble click events on
      // non-interactive elements, which means delegated click listeners do not
      // fire. The workaround for this bug involves attaching an empty click
      // listener on the target node.
      // http://www.quirksmode.org/blog/archives/2010/09/click_event_del.html
      // Just set it using the onclick property so that we don't have to manage any
      // bookkeeping for it. Not sure if we need to clear it when the listener is
      // removed.
      // TODO: Only do this for the relevant Safaris maybe?
      node.onclick = noop;
    }
    
    function setInitialDOMProperties(tag, domElement, rootContainerElement, nextProps, isCustomComponentTag) {
      for (var propKey in nextProps) {
        if (!nextProps.hasOwnProperty(propKey)) {
          continue;
        }
    
        var nextProp = nextProps[propKey];
    
        if (propKey === STYLE$1) {
          {
            if (nextProp) {
              // Freeze the next style object so that we can assume it won't be
              // mutated. We have already warned for this in the past.
              Object.freeze(nextProp);
            }
          } // Relies on `updateStylesByID` not mutating `styleUpdates`.
    
    
          setValueForStyles(domElement, nextProp);
        } else if (propKey === DANGEROUSLY_SET_INNER_HTML) {
          var nextHtml = nextProp ? nextProp[HTML] : undefined;
    
          if (nextHtml != null) {
            setInnerHTML(domElement, nextHtml);
          }
        } else if (propKey === CHILDREN) {
          if (typeof nextProp === 'string') {
            // Avoid setting initial textContent when the text is empty. In IE11 setting
            // textContent on a <textarea> will cause the placeholder to not
            // show within the <textarea> until it has been focused and blurred again.
            // https://github.com/facebook/react/issues/6731#issuecomment-254874553
            var canSetTextContent = tag !== 'textarea' || nextProp !== '';
    
            if (canSetTextContent) {
              setTextContent(domElement, nextProp);
            }
          } else if (typeof nextProp === 'number') {
            setTextContent(domElement, '' + nextProp);
          }
        } else if (enableFlareAPI && propKey === LISTENERS || propKey === SUPPRESS_CONTENT_EDITABLE_WARNING || propKey === SUPPRESS_HYDRATION_WARNING$1) {// Noop
        } else if (propKey === AUTOFOCUS) {// We polyfill it separately on the client during commit.
          // We could have excluded it in the property list instead of
          // adding a special case here, but then it wouldn't be emitted
          // on server rendering (but we *do* want to emit it in SSR).
        } else if (registrationNameModules.hasOwnProperty(propKey)) {
          if (nextProp != null) {
            if ( true && typeof nextProp !== 'function') {
              warnForInvalidEventListener(propKey, nextProp);
            }
    
            ensureListeningTo(rootContainerElement, propKey);
          }
        } else if (nextProp != null) {
          setValueForProperty(domElement, propKey, nextProp, isCustomComponentTag);
        }
      }
    }
    
    function updateDOMProperties(domElement, updatePayload, wasCustomComponentTag, isCustomComponentTag) {
      // TODO: Handle wasCustomComponentTag
      for (var i = 0; i < updatePayload.length; i += 2) {
        var propKey = updatePayload[i];
        var propValue = updatePayload[i + 1];
    
        if (propKey === STYLE$1) {
          setValueForStyles(domElement, propValue);
        } else if (propKey === DANGEROUSLY_SET_INNER_HTML) {
          setInnerHTML(domElement, propValue);
        } else if (propKey === CHILDREN) {
          setTextContent(domElement, propValue);
        } else {
          setValueForProperty(domElement, propKey, propValue, isCustomComponentTag);
        }
      }
    }
    
    function createElement(type, props, rootContainerElement, parentNamespace) {
      var isCustomComponentTag; // We create tags in the namespace of their parent container, except HTML
      // tags get no namespace.
    
      var ownerDocument = getOwnerDocumentFromRootContainer(rootContainerElement);
      var domElement;
      var namespaceURI = parentNamespace;
    
      if (namespaceURI === HTML_NAMESPACE) {
        namespaceURI = getIntrinsicNamespace(type);
      }
    
      if (namespaceURI === HTML_NAMESPACE) {
        {
          isCustomComponentTag = isCustomComponent(type, props); // Should this check be gated by parent namespace? Not sure we want to
          // allow <SVG> or <mATH>.
    
          !(isCustomComponentTag || type === type.toLowerCase()) ? warning$1(false, '<%s /> is using incorrect casing. ' + 'Use PascalCase for React components, ' + 'or lowercase for HTML elements.', type) : void 0;
        }
    
        if (type === 'script') {
          // Create the script via .innerHTML so its "parser-inserted" flag is
          // set to true and it does not execute
          var div = ownerDocument.createElement('div');
    
          {
            if (enableTrustedTypesIntegration && !didWarnScriptTags) {
              warning$1(false, 'Encountered a script tag while rendering React component. ' + 'Scripts inside React components are never executed when rendering ' + 'on the client. Consider using template tag instead ' + '(https://developer.mozilla.org/en-US/docs/Web/HTML/Element/template).');
              didWarnScriptTags = true;
            }
          }
    
          div.innerHTML = '<script><' + '/script>'; // eslint-disable-line
          // This is guaranteed to yield a script element.
    
          var firstChild = div.firstChild;
          domElement = div.removeChild(firstChild);
        } else if (typeof props.is === 'string') {
          // $FlowIssue `createElement` should be updated for Web Components
          domElement = ownerDocument.createElement(type, {
            is: props.is
          });
        } else {
          // Separate else branch instead of using `props.is || undefined` above because of a Firefox bug.
          // See discussion in https://github.com/facebook/react/pull/6896
          // and discussion in https://bugzilla.mozilla.org/show_bug.cgi?id=1276240
          domElement = ownerDocument.createElement(type); // Normally attributes are assigned in `setInitialDOMProperties`, however the `multiple` and `size`
          // attributes on `select`s needs to be added before `option`s are inserted.
          // This prevents:
          // - a bug where the `select` does not scroll to the correct option because singular
          //  `select` elements automatically pick the first item #13222
          // - a bug where the `select` set the first item as selected despite the `size` attribute #14239
          // See https://github.com/facebook/react/issues/13222
          // and https://github.com/facebook/react/issues/14239
    
          if (type === 'select') {
            var node = domElement;
    
            if (props.multiple) {
              node.multiple = true;
            } else if (props.size) {
              // Setting a size greater than 1 causes a select to behave like `multiple=true`, where
              // it is possible that no option is selected.
              //
              // This is only necessary when a select in "single selection mode".
              node.size = props.size;
            }
          }
        }
      } else {
        domElement = ownerDocument.createElementNS(namespaceURI, type);
      }
    
      {
        if (namespaceURI === HTML_NAMESPACE) {
          if (!isCustomComponentTag && Object.prototype.toString.call(domElement) === '[object HTMLUnknownElement]' && !Object.prototype.hasOwnProperty.call(warnedUnknownTags, type)) {
            warnedUnknownTags[type] = true;
            warning$1(false, 'The tag <%s> is unrecognized in this browser. ' + 'If you meant to render a React component, start its name with ' + 'an uppercase letter.', type);
          }
        }
      }
    
      return domElement;
    }
    function createTextNode(text, rootContainerElement) {
      return getOwnerDocumentFromRootContainer(rootContainerElement).createTextNode(text);
    }
    function setInitialProperties(domElement, tag, rawProps, rootContainerElement) {
      var isCustomComponentTag = isCustomComponent(tag, rawProps);
    
      {
        validatePropertiesInDevelopment(tag, rawProps);
    
        if (isCustomComponentTag && !didWarnShadyDOM && domElement.shadyRoot) {
          warning$1(false, '%s is using shady DOM. Using shady DOM with React can ' + 'cause things to break subtly.', getCurrentFiberOwnerNameInDevOrNull() || 'A component');
          didWarnShadyDOM = true;
        }
      } // TODO: Make sure that we check isMounted before firing any of these events.
    
    
      var props;
    
      switch (tag) {
        case 'iframe':
        case 'object':
        case 'embed':
          trapBubbledEvent(TOP_LOAD, domElement);
          props = rawProps;
          break;
    
        case 'video':
        case 'audio':
          // Create listener for each media event
          for (var i = 0; i < mediaEventTypes.length; i++) {
            trapBubbledEvent(mediaEventTypes[i], domElement);
          }
    
          props = rawProps;
          break;
    
        case 'source':
          trapBubbledEvent(TOP_ERROR, domElement);
          props = rawProps;
          break;
    
        case 'img':
        case 'image':
        case 'link':
          trapBubbledEvent(TOP_ERROR, domElement);
          trapBubbledEvent(TOP_LOAD, domElement);
          props = rawProps;
          break;
    
        case 'form':
          trapBubbledEvent(TOP_RESET, domElement);
          trapBubbledEvent(TOP_SUBMIT, domElement);
          props = rawProps;
          break;
    
        case 'details':
          trapBubbledEvent(TOP_TOGGLE, domElement);
          props = rawProps;
          break;
    
        case 'input':
          initWrapperState(domElement, rawProps);
          props = getHostProps(domElement, rawProps);
          trapBubbledEvent(TOP_INVALID, domElement); // For controlled components we always need to ensure we're listening
          // to onChange. Even if there is no listener.
    
          ensureListeningTo(rootContainerElement, 'onChange');
          break;
    
        case 'option':
          validateProps(domElement, rawProps);
          props = getHostProps$1(domElement, rawProps);
          break;
    
        case 'select':
          initWrapperState$1(domElement, rawProps);
          props = getHostProps$2(domElement, rawProps);
          trapBubbledEvent(TOP_INVALID, domElement); // For controlled components we always need to ensure we're listening
          // to onChange. Even if there is no listener.
    
          ensureListeningTo(rootContainerElement, 'onChange');
          break;
    
        case 'textarea':
          initWrapperState$2(domElement, rawProps);
          props = getHostProps$3(domElement, rawProps);
          trapBubbledEvent(TOP_INVALID, domElement); // For controlled components we always need to ensure we're listening
          // to onChange. Even if there is no listener.
    
          ensureListeningTo(rootContainerElement, 'onChange');
          break;
    
        default:
          props = rawProps;
      }
    
      assertValidProps(tag, props);
      setInitialDOMProperties(tag, domElement, rootContainerElement, props, isCustomComponentTag);
    
      switch (tag) {
        case 'input':
          // TODO: Make sure we check if this is still unmounted or do any clean
          // up necessary since we never stop tracking anymore.
          track(domElement);
          postMountWrapper(domElement, rawProps, false);
          break;
    
        case 'textarea':
          // TODO: Make sure we check if this is still unmounted or do any clean
          // up necessary since we never stop tracking anymore.
          track(domElement);
          postMountWrapper$3(domElement, rawProps);
          break;
    
        case 'option':
          postMountWrapper$1(domElement, rawProps);
          break;
    
        case 'select':
          postMountWrapper$2(domElement, rawProps);
          break;
    
        default:
          if (typeof props.onClick === 'function') {
            // TODO: This cast may not be sound for SVG, MathML or custom elements.
            trapClickOnNonInteractiveElement(domElement);
          }
    
          break;
      }
    } // Calculate the diff between the two objects.
    
    function diffProperties(domElement, tag, lastRawProps, nextRawProps, rootContainerElement) {
      {
        validatePropertiesInDevelopment(tag, nextRawProps);
      }
    
      var updatePayload = null;
      var lastProps;
      var nextProps;
    
      switch (tag) {
        case 'input':
          lastProps = getHostProps(domElement, lastRawProps);
          nextProps = getHostProps(domElement, nextRawProps);
          updatePayload = [];
          break;
    
        case 'option':
          lastProps = getHostProps$1(domElement, lastRawProps);
          nextProps = getHostProps$1(domElement, nextRawProps);
          updatePayload = [];
          break;
    
        case 'select':
          lastProps = getHostProps$2(domElement, lastRawProps);
          nextProps = getHostProps$2(domElement, nextRawProps);
          updatePayload = [];
          break;
    
        case 'textarea':
          lastProps = getHostProps$3(domElement, lastRawProps);
          nextProps = getHostProps$3(domElement, nextRawProps);
          updatePayload = [];
          break;
    
        default:
          lastProps = lastRawProps;
          nextProps = nextRawProps;
    
          if (typeof lastProps.onClick !== 'function' && typeof nextProps.onClick === 'function') {
            // TODO: This cast may not be sound for SVG, MathML or custom elements.
            trapClickOnNonInteractiveElement(domElement);
          }
    
          break;
      }
    
      assertValidProps(tag, nextProps);
      var propKey;
      var styleName;
      var styleUpdates = null;
    
      for (propKey in lastProps) {
        if (nextProps.hasOwnProperty(propKey) || !lastProps.hasOwnProperty(propKey) || lastProps[propKey] == null) {
          continue;
        }
    
        if (propKey === STYLE$1) {
          var lastStyle = lastProps[propKey];
    
          for (styleName in lastStyle) {
            if (lastStyle.hasOwnProperty(styleName)) {
              if (!styleUpdates) {
                styleUpdates = {};
              }
    
              styleUpdates[styleName] = '';
            }
          }
        } else if (propKey === DANGEROUSLY_SET_INNER_HTML || propKey === CHILDREN) {// Noop. This is handled by the clear text mechanism.
        } else if (enableFlareAPI && propKey === LISTENERS || propKey === SUPPRESS_CONTENT_EDITABLE_WARNING || propKey === SUPPRESS_HYDRATION_WARNING$1) {// Noop
        } else if (propKey === AUTOFOCUS) {// Noop. It doesn't work on updates anyway.
        } else if (registrationNameModules.hasOwnProperty(propKey)) {
          // This is a special case. If any listener updates we need to ensure
          // that the "current" fiber pointer gets updated so we need a commit
          // to update this element.
          if (!updatePayload) {
            updatePayload = [];
          }
        } else {
          // For all other deleted properties we add it to the queue. We use
          // the whitelist in the commit phase instead.
          (updatePayload = updatePayload || []).push(propKey, null);
        }
      }
    
      for (propKey in nextProps) {
        var nextProp = nextProps[propKey];
        var lastProp = lastProps != null ? lastProps[propKey] : undefined;
    
        if (!nextProps.hasOwnProperty(propKey) || nextProp === lastProp || nextProp == null && lastProp == null) {
          continue;
        }
    
        if (propKey === STYLE$1) {
          {
            if (nextProp) {
              // Freeze the next style object so that we can assume it won't be
              // mutated. We have already warned for this in the past.
              Object.freeze(nextProp);
            }
          }
    
          if (lastProp) {
            // Unset styles on `lastProp` but not on `nextProp`.
            for (styleName in lastProp) {
              if (lastProp.hasOwnProperty(styleName) && (!nextProp || !nextProp.hasOwnProperty(styleName))) {
                if (!styleUpdates) {
                  styleUpdates = {};
                }
    
                styleUpdates[styleName] = '';
              }
            } // Update styles that changed since `lastProp`.
    
    
            for (styleName in nextProp) {
              if (nextProp.hasOwnProperty(styleName) && lastProp[styleName] !== nextProp[styleName]) {
                if (!styleUpdates) {
                  styleUpdates = {};
                }
    
                styleUpdates[styleName] = nextProp[styleName];
              }
            }
          } else {
            // Relies on `updateStylesByID` not mutating `styleUpdates`.
            if (!styleUpdates) {
              if (!updatePayload) {
                updatePayload = [];
              }
    
              updatePayload.push(propKey, styleUpdates);
            }
    
            styleUpdates = nextProp;
          }
        } else if (propKey === DANGEROUSLY_SET_INNER_HTML) {
          var nextHtml = nextProp ? nextProp[HTML] : undefined;
          var lastHtml = lastProp ? lastProp[HTML] : undefined;
    
          if (nextHtml != null) {
            if (lastHtml !== nextHtml) {
              (updatePayload = updatePayload || []).push(propKey, toStringOrTrustedType(nextHtml));
            }
          } else {// TODO: It might be too late to clear this if we have children
            // inserted already.
          }
        } else if (propKey === CHILDREN) {
          if (lastProp !== nextProp && (typeof nextProp === 'string' || typeof nextProp === 'number')) {
            (updatePayload = updatePayload || []).push(propKey, '' + nextProp);
          }
        } else if (enableFlareAPI && propKey === LISTENERS || propKey === SUPPRESS_CONTENT_EDITABLE_WARNING || propKey === SUPPRESS_HYDRATION_WARNING$1) {// Noop
        } else if (registrationNameModules.hasOwnProperty(propKey)) {
          if (nextProp != null) {
            // We eagerly listen to this even though we haven't committed yet.
            if ( true && typeof nextProp !== 'function') {
              warnForInvalidEventListener(propKey, nextProp);
            }
    
            ensureListeningTo(rootContainerElement, propKey);
          }
    
          if (!updatePayload && lastProp !== nextProp) {
            // This is a special case. If any listener updates we need to ensure
            // that the "current" props pointer gets updated so we need a commit
            // to update this element.
            updatePayload = [];
          }
        } else {
          // For any other property we always add it to the queue and then we
          // filter it out using the whitelist during the commit.
          (updatePayload = updatePayload || []).push(propKey, nextProp);
        }
      }
    
      if (styleUpdates) {
        {
          validateShorthandPropertyCollisionInDev(styleUpdates, nextProps[STYLE$1]);
        }
    
        (updatePayload = updatePayload || []).push(STYLE$1, styleUpdates);
      }
    
      return updatePayload;
    } // Apply the diff.
    
    function updateProperties(domElement, updatePayload, tag, lastRawProps, nextRawProps) {
      // Update checked *before* name.
      // In the middle of an update, it is possible to have multiple checked.
      // When a checked radio tries to change name, browser makes another radio's checked false.
      if (tag === 'input' && nextRawProps.type === 'radio' && nextRawProps.name != null) {
        updateChecked(domElement, nextRawProps);
      }
    
      var wasCustomComponentTag = isCustomComponent(tag, lastRawProps);
      var isCustomComponentTag = isCustomComponent(tag, nextRawProps); // Apply the diff.
    
      updateDOMProperties(domElement, updatePayload, wasCustomComponentTag, isCustomComponentTag); // TODO: Ensure that an update gets scheduled if any of the special props
      // changed.
    
      switch (tag) {
        case 'input':
          // Update the wrapper around inputs *after* updating props. This has to
          // happen after `updateDOMProperties`. Otherwise HTML5 input validations
          // raise warnings and prevent the new value from being assigned.
          updateWrapper(domElement, nextRawProps);
          break;
    
        case 'textarea':
          updateWrapper$1(domElement, nextRawProps);
          break;
    
        case 'select':
          // <select> value update needs to occur after <option> children
          // reconciliation
          postUpdateWrapper(domElement, nextRawProps);
          break;
      }
    }
    
    function getPossibleStandardName(propName) {
      {
        var lowerCasedName = propName.toLowerCase();
    
        if (!possibleStandardNames.hasOwnProperty(lowerCasedName)) {
          return null;
        }
    
        return possibleStandardNames[lowerCasedName] || null;
      }
    
      return null;
    }
    
    function diffHydratedProperties(domElement, tag, rawProps, parentNamespace, rootContainerElement) {
      var isCustomComponentTag;
      var extraAttributeNames;
    
      {
        suppressHydrationWarning = rawProps[SUPPRESS_HYDRATION_WARNING$1] === true;
        isCustomComponentTag = isCustomComponent(tag, rawProps);
        validatePropertiesInDevelopment(tag, rawProps);
    
        if (isCustomComponentTag && !didWarnShadyDOM && domElement.shadyRoot) {
          warning$1(false, '%s is using shady DOM. Using shady DOM with React can ' + 'cause things to break subtly.', getCurrentFiberOwnerNameInDevOrNull() || 'A component');
          didWarnShadyDOM = true;
        }
      } // TODO: Make sure that we check isMounted before firing any of these events.
    
    
      switch (tag) {
        case 'iframe':
        case 'object':
        case 'embed':
          trapBubbledEvent(TOP_LOAD, domElement);
          break;
    
        case 'video':
        case 'audio':
          // Create listener for each media event
          for (var i = 0; i < mediaEventTypes.length; i++) {
            trapBubbledEvent(mediaEventTypes[i], domElement);
          }
    
          break;
    
        case 'source':
          trapBubbledEvent(TOP_ERROR, domElement);
          break;
    
        case 'img':
        case 'image':
        case 'link':
          trapBubbledEvent(TOP_ERROR, domElement);
          trapBubbledEvent(TOP_LOAD, domElement);
          break;
    
        case 'form':
          trapBubbledEvent(TOP_RESET, domElement);
          trapBubbledEvent(TOP_SUBMIT, domElement);
          break;
    
        case 'details':
          trapBubbledEvent(TOP_TOGGLE, domElement);
          break;
    
        case 'input':
          initWrapperState(domElement, rawProps);
          trapBubbledEvent(TOP_INVALID, domElement); // For controlled components we always need to ensure we're listening
          // to onChange. Even if there is no listener.
    
          ensureListeningTo(rootContainerElement, 'onChange');
          break;
    
        case 'option':
          validateProps(domElement, rawProps);
          break;
    
        case 'select':
          initWrapperState$1(domElement, rawProps);
          trapBubbledEvent(TOP_INVALID, domElement); // For controlled components we always need to ensure we're listening
          // to onChange. Even if there is no listener.
    
          ensureListeningTo(rootContainerElement, 'onChange');
          break;
    
        case 'textarea':
          initWrapperState$2(domElement, rawProps);
          trapBubbledEvent(TOP_INVALID, domElement); // For controlled components we always need to ensure we're listening
          // to onChange. Even if there is no listener.
    
          ensureListeningTo(rootContainerElement, 'onChange');
          break;
      }
    
      assertValidProps(tag, rawProps);
    
      {
        extraAttributeNames = new Set();
        var attributes = domElement.attributes;
    
        for (var _i = 0; _i < attributes.length; _i++) {
          var name = attributes[_i].name.toLowerCase();
    
          switch (name) {
            // Built-in SSR attribute is whitelisted
            case 'data-reactroot':
              break;
            // Controlled attributes are not validated
            // TODO: Only ignore them on controlled tags.
    
            case 'value':
              break;
    
            case 'checked':
              break;
    
            case 'selected':
              break;
    
            default:
              // Intentionally use the original name.
              // See discussion in https://github.com/facebook/react/pull/10676.
              extraAttributeNames.add(attributes[_i].name);
          }
        }
      }
    
      var updatePayload = null;
    
      for (var propKey in rawProps) {
        if (!rawProps.hasOwnProperty(propKey)) {
          continue;
        }
    
        var nextProp = rawProps[propKey];
    
        if (propKey === CHILDREN) {
          // For text content children we compare against textContent. This
          // might match additional HTML that is hidden when we read it using
          // textContent. E.g. "foo" will match "f<span>oo</span>" but that still
          // satisfies our requirement. Our requirement is not to produce perfect
          // HTML and attributes. Ideally we should preserve structure but it's
          // ok not to if the visible content is still enough to indicate what
          // even listeners these nodes might be wired up to.
          // TODO: Warn if there is more than a single textNode as a child.
          // TODO: Should we use domElement.firstChild.nodeValue to compare?
          if (typeof nextProp === 'string') {
            if (domElement.textContent !== nextProp) {
              if ( true && !suppressHydrationWarning) {
                warnForTextDifference(domElement.textContent, nextProp);
              }
    
              updatePayload = [CHILDREN, nextProp];
            }
          } else if (typeof nextProp === 'number') {
            if (domElement.textContent !== '' + nextProp) {
              if ( true && !suppressHydrationWarning) {
                warnForTextDifference(domElement.textContent, nextProp);
              }
    
              updatePayload = [CHILDREN, '' + nextProp];
            }
          }
        } else if (registrationNameModules.hasOwnProperty(propKey)) {
          if (nextProp != null) {
            if ( true && typeof nextProp !== 'function') {
              warnForInvalidEventListener(propKey, nextProp);
            }
    
            ensureListeningTo(rootContainerElement, propKey);
          }
        } else if ( true && // Convince Flow we've calculated it (it's DEV-only in this method.)
        typeof isCustomComponentTag === 'boolean') {
          // Validate that the properties correspond to their expected values.
          var serverValue = void 0;
          var propertyInfo = getPropertyInfo(propKey);
    
          if (suppressHydrationWarning) {// Don't bother comparing. We're ignoring all these warnings.
          } else if (enableFlareAPI && propKey === LISTENERS || propKey === SUPPRESS_CONTENT_EDITABLE_WARNING || propKey === SUPPRESS_HYDRATION_WARNING$1 || // Controlled attributes are not validated
          // TODO: Only ignore them on controlled tags.
          propKey === 'value' || propKey === 'checked' || propKey === 'selected') {// Noop
          } else if (propKey === DANGEROUSLY_SET_INNER_HTML) {
            var serverHTML = domElement.innerHTML;
            var nextHtml = nextProp ? nextProp[HTML] : undefined;
            var expectedHTML = normalizeHTML(domElement, nextHtml != null ? nextHtml : '');
    
            if (expectedHTML !== serverHTML) {
              warnForPropDifference(propKey, serverHTML, expectedHTML);
            }
          } else if (propKey === STYLE$1) {
            // $FlowFixMe - Should be inferred as not undefined.
            extraAttributeNames.delete(propKey);
    
            if (canDiffStyleForHydrationWarning) {
              var expectedStyle = createDangerousStringForStyles(nextProp);
              serverValue = domElement.getAttribute('style');
    
              if (expectedStyle !== serverValue) {
                warnForPropDifference(propKey, serverValue, expectedStyle);
              }
            }
          } else if (isCustomComponentTag) {
            // $FlowFixMe - Should be inferred as not undefined.
            extraAttributeNames.delete(propKey.toLowerCase());
            serverValue = getValueForAttribute(domElement, propKey, nextProp);
    
            if (nextProp !== serverValue) {
              warnForPropDifference(propKey, serverValue, nextProp);
            }
          } else if (!shouldIgnoreAttribute(propKey, propertyInfo, isCustomComponentTag) && !shouldRemoveAttribute(propKey, nextProp, propertyInfo, isCustomComponentTag)) {
            var isMismatchDueToBadCasing = false;
    
            if (propertyInfo !== null) {
              // $FlowFixMe - Should be inferred as not undefined.
              extraAttributeNames.delete(propertyInfo.attributeName);
              serverValue = getValueForProperty(domElement, propKey, nextProp, propertyInfo);
            } else {
              var ownNamespace = parentNamespace;
    
              if (ownNamespace === HTML_NAMESPACE) {
                ownNamespace = getIntrinsicNamespace(tag);
              }
    
              if (ownNamespace === HTML_NAMESPACE) {
                // $FlowFixMe - Should be inferred as not undefined.
                extraAttributeNames.delete(propKey.toLowerCase());
              } else {
                var standardName = getPossibleStandardName(propKey);
    
                if (standardName !== null && standardName !== propKey) {
                  // If an SVG prop is supplied with bad casing, it will
                  // be successfully parsed from HTML, but will produce a mismatch
                  // (and would be incorrectly rendered on the client).
                  // However, we already warn about bad casing elsewhere.
                  // So we'll skip the misleading extra mismatch warning in this case.
                  isMismatchDueToBadCasing = true; // $FlowFixMe - Should be inferred as not undefined.
    
                  extraAttributeNames.delete(standardName);
                } // $FlowFixMe - Should be inferred as not undefined.
    
    
                extraAttributeNames.delete(propKey);
              }
    
              serverValue = getValueForAttribute(domElement, propKey, nextProp);
            }
    
            if (nextProp !== serverValue && !isMismatchDueToBadCasing) {
              warnForPropDifference(propKey, serverValue, nextProp);
            }
          }
        }
      }
    
      {
        // $FlowFixMe - Should be inferred as not undefined.
        if (extraAttributeNames.size > 0 && !suppressHydrationWarning) {
          // $FlowFixMe - Should be inferred as not undefined.
          warnForExtraAttributes(extraAttributeNames);
        }
      }
    
      switch (tag) {
        case 'input':
          // TODO: Make sure we check if this is still unmounted or do any clean
          // up necessary since we never stop tracking anymore.
          track(domElement);
          postMountWrapper(domElement, rawProps, true);
          break;
    
        case 'textarea':
          // TODO: Make sure we check if this is still unmounted or do any clean
          // up necessary since we never stop tracking anymore.
          track(domElement);
          postMountWrapper$3(domElement, rawProps);
          break;
    
        case 'select':
        case 'option':
          // For input and textarea we current always set the value property at
          // post mount to force it to diverge from attributes. However, for
          // option and select we don't quite do the same thing and select
          // is not resilient to the DOM state changing so we don't do that here.
          // TODO: Consider not doing this for input and textarea.
          break;
    
        default:
          if (typeof rawProps.onClick === 'function') {
            // TODO: This cast may not be sound for SVG, MathML or custom elements.
            trapClickOnNonInteractiveElement(domElement);
          }
    
          break;
      }
    
      return updatePayload;
    }
    function diffHydratedText(textNode, text) {
      var isDifferent = textNode.nodeValue !== text;
      return isDifferent;
    }
    function warnForUnmatchedText(textNode, text) {
      {
        warnForTextDifference(textNode.nodeValue, text);
      }
    }
    function warnForDeletedHydratableElement(parentNode, child) {
      {
        if (didWarnInvalidHydration) {
          return;
        }
    
        didWarnInvalidHydration = true;
        warningWithoutStack$1(false, 'Did not expect server HTML to contain a <%s> in <%s>.', child.nodeName.toLowerCase(), parentNode.nodeName.toLowerCase());
      }
    }
    function warnForDeletedHydratableText(parentNode, child) {
      {
        if (didWarnInvalidHydration) {
          return;
        }
    
        didWarnInvalidHydration = true;
        warningWithoutStack$1(false, 'Did not expect server HTML to contain the text node "%s" in <%s>.', child.nodeValue, parentNode.nodeName.toLowerCase());
      }
    }
    function warnForInsertedHydratedElement(parentNode, tag, props) {
      {
        if (didWarnInvalidHydration) {
          return;
        }
    
        didWarnInvalidHydration = true;
        warningWithoutStack$1(false, 'Expected server HTML to contain a matching <%s> in <%s>.', tag, parentNode.nodeName.toLowerCase());
      }
    }
    function warnForInsertedHydratedText(parentNode, text) {
      {
        if (text === '') {
          // We expect to insert empty text nodes since they're not represented in
          // the HTML.
          // TODO: Remove this special case if we can just avoid inserting empty
          // text nodes.
          return;
        }
    
        if (didWarnInvalidHydration) {
          return;
        }
    
        didWarnInvalidHydration = true;
        warningWithoutStack$1(false, 'Expected server HTML to contain a matching text node for "%s" in <%s>.', text, parentNode.nodeName.toLowerCase());
      }
    }
    function restoreControlledState$$1(domElement, tag, props) {
      switch (tag) {
        case 'input':
          restoreControlledState$1(domElement, props);
          return;
    
        case 'textarea':
          restoreControlledState$3(domElement, props);
          return;
    
        case 'select':
          restoreControlledState$2(domElement, props);
          return;
      }
    }
    function listenToEventResponderEventTypes(eventTypes, element) {
      if (enableFlareAPI) {
        // Get the listening Set for this element. We use this to track
        // what events we're listening to.
        var listeningSet = getListeningSetForElement(element); // Go through each target event type of the event responder
    
        for (var i = 0, length = eventTypes.length; i < length; ++i) {
          var eventType = eventTypes[i];
          var isPassive = !endsWith(eventType, '_active');
          var eventKey = isPassive ? eventType + '_passive' : eventType;
          var targetEventType = isPassive ? eventType : eventType.substring(0, eventType.length - 7);
    
          if (!listeningSet.has(eventKey)) {
            trapEventForResponderEventSystem(element, targetEventType, isPassive);
            listeningSet.add(eventKey);
          }
        }
      }
    } // We can remove this once the event API is stable and out of a flag
    
    if (enableFlareAPI) {
      setListenToResponderEventTypes(listenToEventResponderEventTypes);
    }
    
    function getActiveElement(doc) {
      doc = doc || (typeof document !== 'undefined' ? document : undefined);
    
      if (typeof doc === 'undefined') {
        return null;
      }
    
      try {
        return doc.activeElement || doc.body;
      } catch (e) {
        return doc.body;
      }
    }
    
    /**
     * Given any node return the first leaf node without children.
     *
     * @param {DOMElement|DOMTextNode} node
     * @return {DOMElement|DOMTextNode}
     */
    
    function getLeafNode(node) {
      while (node && node.firstChild) {
        node = node.firstChild;
      }
    
      return node;
    }
    /**
     * Get the next sibling within a container. This will walk up the
     * DOM if a node's siblings have been exhausted.
     *
     * @param {DOMElement|DOMTextNode} node
     * @return {?DOMElement|DOMTextNode}
     */
    
    
    function getSiblingNode(node) {
      while (node) {
        if (node.nextSibling) {
          return node.nextSibling;
        }
    
        node = node.parentNode;
      }
    }
    /**
     * Get object describing the nodes which contain characters at offset.
     *
     * @param {DOMElement|DOMTextNode} root
     * @param {number} offset
     * @return {?object}
     */
    
    
    function getNodeForCharacterOffset(root, offset) {
      var node = getLeafNode(root);
      var nodeStart = 0;
      var nodeEnd = 0;
    
      while (node) {
        if (node.nodeType === TEXT_NODE) {
          nodeEnd = nodeStart + node.textContent.length;
    
          if (nodeStart <= offset && nodeEnd >= offset) {
            return {
              node: node,
              offset: offset - nodeStart
            };
          }
    
          nodeStart = nodeEnd;
        }
    
        node = getLeafNode(getSiblingNode(node));
      }
    }
    
    /**
     * @param {DOMElement} outerNode
     * @return {?object}
     */
    
    function getOffsets(outerNode) {
      var ownerDocument = outerNode.ownerDocument;
      var win = ownerDocument && ownerDocument.defaultView || window;
      var selection = win.getSelection && win.getSelection();
    
      if (!selection || selection.rangeCount === 0) {
        return null;
      }
    
      var anchorNode = selection.anchorNode,
          anchorOffset = selection.anchorOffset,
          focusNode = selection.focusNode,
          focusOffset = selection.focusOffset; // In Firefox, anchorNode and focusNode can be "anonymous divs", e.g. the
      // up/down buttons on an <input type="number">. Anonymous divs do not seem to
      // expose properties, triggering a "Permission denied error" if any of its
      // properties are accessed. The only seemingly possible way to avoid erroring
      // is to access a property that typically works for non-anonymous divs and
      // catch any error that may otherwise arise. See
      // https://bugzilla.mozilla.org/show_bug.cgi?id=208427
    
      try {
        /* eslint-disable no-unused-expressions */
        anchorNode.nodeType;
        focusNode.nodeType;
        /* eslint-enable no-unused-expressions */
      } catch (e) {
        return null;
      }
    
      return getModernOffsetsFromPoints(outerNode, anchorNode, anchorOffset, focusNode, focusOffset);
    }
    /**
     * Returns {start, end} where `start` is the character/codepoint index of
     * (anchorNode, anchorOffset) within the textContent of `outerNode`, and
     * `end` is the index of (focusNode, focusOffset).
     *
     * Returns null if you pass in garbage input but we should probably just crash.
     *
     * Exported only for testing.
     */
    
    function getModernOffsetsFromPoints(outerNode, anchorNode, anchorOffset, focusNode, focusOffset) {
      var length = 0;
      var start = -1;
      var end = -1;
      var indexWithinAnchor = 0;
      var indexWithinFocus = 0;
      var node = outerNode;
      var parentNode = null;
    
      outer: while (true) {
        var next = null;
    
        while (true) {
          if (node === anchorNode && (anchorOffset === 0 || node.nodeType === TEXT_NODE)) {
            start = length + anchorOffset;
          }
    
          if (node === focusNode && (focusOffset === 0 || node.nodeType === TEXT_NODE)) {
            end = length + focusOffset;
          }
    
          if (node.nodeType === TEXT_NODE) {
            length += node.nodeValue.length;
          }
    
          if ((next = node.firstChild) === null) {
            break;
          } // Moving from `node` to its first child `next`.
    
    
          parentNode = node;
          node = next;
        }
    
        while (true) {
          if (node === outerNode) {
            // If `outerNode` has children, this is always the second time visiting
            // it. If it has no children, this is still the first loop, and the only
            // valid selection is anchorNode and focusNode both equal to this node
            // and both offsets 0, in which case we will have handled above.
            break outer;
          }
    
          if (parentNode === anchorNode && ++indexWithinAnchor === anchorOffset) {
            start = length;
          }
    
          if (parentNode === focusNode && ++indexWithinFocus === focusOffset) {
            end = length;
          }
    
          if ((next = node.nextSibling) !== null) {
            break;
          }
    
          node = parentNode;
          parentNode = node.parentNode;
        } // Moving from `node` to its next sibling `next`.
    
    
        node = next;
      }
    
      if (start === -1 || end === -1) {
        // This should never happen. (Would happen if the anchor/focus nodes aren't
        // actually inside the passed-in node.)
        return null;
      }
    
      return {
        start: start,
        end: end
      };
    }
    /**
     * In modern non-IE browsers, we can support both forward and backward
     * selections.
     *
     * Note: IE10+ supports the Selection object, but it does not support
     * the `extend` method, which means that even in modern IE, it's not possible
     * to programmatically create a backward selection. Thus, for all IE
     * versions, we use the old IE API to create our selections.
     *
     * @param {DOMElement|DOMTextNode} node
     * @param {object} offsets
     */
    
    function setOffsets(node, offsets) {
      var doc = node.ownerDocument || document;
      var win = doc && doc.defaultView || window; // Edge fails with "Object expected" in some scenarios.
      // (For instance: TinyMCE editor used in a list component that supports pasting to add more,
      // fails when pasting 100+ items)
    
      if (!win.getSelection) {
        return;
      }
    
      var selection = win.getSelection();
      var length = node.textContent.length;
      var start = Math.min(offsets.start, length);
      var end = offsets.end === undefined ? start : Math.min(offsets.end, length); // IE 11 uses modern selection, but doesn't support the extend method.
      // Flip backward selections, so we can set with a single range.
    
      if (!selection.extend && start > end) {
        var temp = end;
        end = start;
        start = temp;
      }
    
      var startMarker = getNodeForCharacterOffset(node, start);
      var endMarker = getNodeForCharacterOffset(node, end);
    
      if (startMarker && endMarker) {
        if (selection.rangeCount === 1 && selection.anchorNode === startMarker.node && selection.anchorOffset === startMarker.offset && selection.focusNode === endMarker.node && selection.focusOffset === endMarker.offset) {
          return;
        }
    
        var range = doc.createRange();
        range.setStart(startMarker.node, startMarker.offset);
        selection.removeAllRanges();
    
        if (start > end) {
          selection.addRange(range);
          selection.extend(endMarker.node, endMarker.offset);
        } else {
          range.setEnd(endMarker.node, endMarker.offset);
          selection.addRange(range);
        }
      }
    }
    
    function isTextNode(node) {
      return node && node.nodeType === TEXT_NODE;
    }
    
    function containsNode(outerNode, innerNode) {
      if (!outerNode || !innerNode) {
        return false;
      } else if (outerNode === innerNode) {
        return true;
      } else if (isTextNode(outerNode)) {
        return false;
      } else if (isTextNode(innerNode)) {
        return containsNode(outerNode, innerNode.parentNode);
      } else if ('contains' in outerNode) {
        return outerNode.contains(innerNode);
      } else if (outerNode.compareDocumentPosition) {
        return !!(outerNode.compareDocumentPosition(innerNode) & 16);
      } else {
        return false;
      }
    }
    
    function isInDocument(node) {
      return node && node.ownerDocument && containsNode(node.ownerDocument.documentElement, node);
    }
    
    function isSameOriginFrame(iframe) {
      try {
        // Accessing the contentDocument of a HTMLIframeElement can cause the browser
        // to throw, e.g. if it has a cross-origin src attribute.
        // Safari will show an error in the console when the access results in "Blocked a frame with origin". e.g:
        // iframe.contentDocument.defaultView;
        // A safety way is to access one of the cross origin properties: Window or Location
        // Which might result in "SecurityError" DOM Exception and it is compatible to Safari.
        // https://html.spec.whatwg.org/multipage/browsers.html#integration-with-idl
        return typeof iframe.contentWindow.location.href === 'string';
      } catch (err) {
        return false;
      }
    }
    
    function getActiveElementDeep() {
      var win = window;
      var element = getActiveElement();
    
      while (element instanceof win.HTMLIFrameElement) {
        if (isSameOriginFrame(element)) {
          win = element.contentWindow;
        } else {
          return element;
        }
    
        element = getActiveElement(win.document);
      }
    
      return element;
    }
    /**
     * @ReactInputSelection: React input selection module. Based on Selection.js,
     * but modified to be suitable for react and has a couple of bug fixes (doesn't
     * assume buttons have range selections allowed).
     * Input selection module for React.
     */
    
    /**
     * @hasSelectionCapabilities: we get the element types that support selection
     * from https://html.spec.whatwg.org/#do-not-apply, looking at `selectionStart`
     * and `selectionEnd` rows.
     */
    
    
    function hasSelectionCapabilities(elem) {
      var nodeName = elem && elem.nodeName && elem.nodeName.toLowerCase();
      return nodeName && (nodeName === 'input' && (elem.type === 'text' || elem.type === 'search' || elem.type === 'tel' || elem.type === 'url' || elem.type === 'password') || nodeName === 'textarea' || elem.contentEditable === 'true');
    }
    function getSelectionInformation() {
      var focusedElem = getActiveElementDeep();
      return {
        focusedElem: focusedElem,
        selectionRange: hasSelectionCapabilities(focusedElem) ? getSelection(focusedElem) : null
      };
    }
    /**
     * @restoreSelection: If any selection information was potentially lost,
     * restore it. This is useful when performing operations that could remove dom
     * nodes and place them back in, resulting in focus being lost.
     */
    
    function restoreSelection(priorSelectionInformation) {
      var curFocusedElem = getActiveElementDeep();
      var priorFocusedElem = priorSelectionInformation.focusedElem;
      var priorSelectionRange = priorSelectionInformation.selectionRange;
    
      if (curFocusedElem !== priorFocusedElem && isInDocument(priorFocusedElem)) {
        if (priorSelectionRange !== null && hasSelectionCapabilities(priorFocusedElem)) {
          setSelection(priorFocusedElem, priorSelectionRange);
        } // Focusing a node can change the scroll position, which is undesirable
    
    
        var ancestors = [];
        var ancestor = priorFocusedElem;
    
        while (ancestor = ancestor.parentNode) {
          if (ancestor.nodeType === ELEMENT_NODE) {
            ancestors.push({
              element: ancestor,
              left: ancestor.scrollLeft,
              top: ancestor.scrollTop
            });
          }
        }
    
        if (typeof priorFocusedElem.focus === 'function') {
          priorFocusedElem.focus();
        }
    
        for (var i = 0; i < ancestors.length; i++) {
          var info = ancestors[i];
          info.element.scrollLeft = info.left;
          info.element.scrollTop = info.top;
        }
      }
    }
    /**
     * @getSelection: Gets the selection bounds of a focused textarea, input or
     * contentEditable node.
     * -@input: Look up selection bounds of this input
     * -@return {start: selectionStart, end: selectionEnd}
     */
    
    function getSelection(input) {
      var selection;
    
      if ('selectionStart' in input) {
        // Modern browser with input or textarea.
        selection = {
          start: input.selectionStart,
          end: input.selectionEnd
        };
      } else {
        // Content editable or old IE textarea.
        selection = getOffsets(input);
      }
    
      return selection || {
        start: 0,
        end: 0
      };
    }
    /**
     * @setSelection: Sets the selection bounds of a textarea or input and focuses
     * the input.
     * -@input     Set selection bounds of this input or textarea
     * -@offsets   Object of same form that is returned from get*
     */
    
    function setSelection(input, offsets) {
      var start = offsets.start,
          end = offsets.end;
    
      if (end === undefined) {
        end = start;
      }
    
      if ('selectionStart' in input) {
        input.selectionStart = start;
        input.selectionEnd = Math.min(end, input.value.length);
      } else {
        setOffsets(input, offsets);
      }
    }
    
    var validateDOMNesting = function () {};
    
    var updatedAncestorInfo = function () {};
    
    {
      // This validation code was written based on the HTML5 parsing spec:
      // https://html.spec.whatwg.org/multipage/syntax.html#has-an-element-in-scope
      //
      // Note: this does not catch all invalid nesting, nor does it try to (as it's
      // not clear what practical benefit doing so provides); instead, we warn only
      // for cases where the parser will give a parse tree differing from what React
      // intended. For example, <b><div></div></b> is invalid but we don't warn
      // because it still parses correctly; we do warn for other cases like nested
      // <p> tags where the beginning of the second element implicitly closes the
      // first, causing a confusing mess.
      // https://html.spec.whatwg.org/multipage/syntax.html#special
      var specialTags = ['address', 'applet', 'area', 'article', 'aside', 'base', 'basefont', 'bgsound', 'blockquote', 'body', 'br', 'button', 'caption', 'center', 'col', 'colgroup', 'dd', 'details', 'dir', 'div', 'dl', 'dt', 'embed', 'fieldset', 'figcaption', 'figure', 'footer', 'form', 'frame', 'frameset', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'head', 'header', 'hgroup', 'hr', 'html', 'iframe', 'img', 'input', 'isindex', 'li', 'link', 'listing', 'main', 'marquee', 'menu', 'menuitem', 'meta', 'nav', 'noembed', 'noframes', 'noscript', 'object', 'ol', 'p', 'param', 'plaintext', 'pre', 'script', 'section', 'select', 'source', 'style', 'summary', 'table', 'tbody', 'td', 'template', 'textarea', 'tfoot', 'th', 'thead', 'title', 'tr', 'track', 'ul', 'wbr', 'xmp']; // https://html.spec.whatwg.org/multipage/syntax.html#has-an-element-in-scope
    
      var inScopeTags = ['applet', 'caption', 'html', 'table', 'td', 'th', 'marquee', 'object', 'template', // https://html.spec.whatwg.org/multipage/syntax.html#html-integration-point
      // TODO: Distinguish by namespace here -- for <title>, including it here
      // errs on the side of fewer warnings
      'foreignObject', 'desc', 'title']; // https://html.spec.whatwg.org/multipage/syntax.html#has-an-element-in-button-scope
    
      var buttonScopeTags = inScopeTags.concat(['button']); // https://html.spec.whatwg.org/multipage/syntax.html#generate-implied-end-tags
    
      var impliedEndTags = ['dd', 'dt', 'li', 'option', 'optgroup', 'p', 'rp', 'rt'];
      var emptyAncestorInfo = {
        current: null,
        formTag: null,
        aTagInScope: null,
        buttonTagInScope: null,
        nobrTagInScope: null,
        pTagInButtonScope: null,
        listItemTagAutoclosing: null,
        dlItemTagAutoclosing: null
      };
    
      updatedAncestorInfo = function (oldInfo, tag) {
        var ancestorInfo = _assign({}, oldInfo || emptyAncestorInfo);
    
        var info = {
          tag: tag
        };
    
        if (inScopeTags.indexOf(tag) !== -1) {
          ancestorInfo.aTagInScope = null;
          ancestorInfo.buttonTagInScope = null;
          ancestorInfo.nobrTagInScope = null;
        }
    
        if (buttonScopeTags.indexOf(tag) !== -1) {
          ancestorInfo.pTagInButtonScope = null;
        } // See rules for 'li', 'dd', 'dt' start tags in
        // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-inbody
    
    
        if (specialTags.indexOf(tag) !== -1 && tag !== 'address' && tag !== 'div' && tag !== 'p') {
          ancestorInfo.listItemTagAutoclosing = null;
          ancestorInfo.dlItemTagAutoclosing = null;
        }
    
        ancestorInfo.current = info;
    
        if (tag === 'form') {
          ancestorInfo.formTag = info;
        }
    
        if (tag === 'a') {
          ancestorInfo.aTagInScope = info;
        }
    
        if (tag === 'button') {
          ancestorInfo.buttonTagInScope = info;
        }
    
        if (tag === 'nobr') {
          ancestorInfo.nobrTagInScope = info;
        }
    
        if (tag === 'p') {
          ancestorInfo.pTagInButtonScope = info;
        }
    
        if (tag === 'li') {
          ancestorInfo.listItemTagAutoclosing = info;
        }
    
        if (tag === 'dd' || tag === 'dt') {
          ancestorInfo.dlItemTagAutoclosing = info;
        }
    
        return ancestorInfo;
      };
      /**
       * Returns whether
       */
    
    
      var isTagValidWithParent = function (tag, parentTag) {
        // First, let's check if we're in an unusual parsing mode...
        switch (parentTag) {
          // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-inselect
          case 'select':
            return tag === 'option' || tag === 'optgroup' || tag === '#text';
    
          case 'optgroup':
            return tag === 'option' || tag === '#text';
          // Strictly speaking, seeing an <option> doesn't mean we're in a <select>
          // but
    
          case 'option':
            return tag === '#text';
          // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-intd
          // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-incaption
          // No special behavior since these rules fall back to "in body" mode for
          // all except special table nodes which cause bad parsing behavior anyway.
          // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-intr
    
          case 'tr':
            return tag === 'th' || tag === 'td' || tag === 'style' || tag === 'script' || tag === 'template';
          // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-intbody
    
          case 'tbody':
          case 'thead':
          case 'tfoot':
            return tag === 'tr' || tag === 'style' || tag === 'script' || tag === 'template';
          // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-incolgroup
    
          case 'colgroup':
            return tag === 'col' || tag === 'template';
          // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-intable
    
          case 'table':
            return tag === 'caption' || tag === 'colgroup' || tag === 'tbody' || tag === 'tfoot' || tag === 'thead' || tag === 'style' || tag === 'script' || tag === 'template';
          // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-inhead
    
          case 'head':
            return tag === 'base' || tag === 'basefont' || tag === 'bgsound' || tag === 'link' || tag === 'meta' || tag === 'title' || tag === 'noscript' || tag === 'noframes' || tag === 'style' || tag === 'script' || tag === 'template';
          // https://html.spec.whatwg.org/multipage/semantics.html#the-html-element
    
          case 'html':
            return tag === 'head' || tag === 'body' || tag === 'frameset';
    
          case 'frameset':
            return tag === 'frame';
    
          case '#document':
            return tag === 'html';
        } // Probably in the "in body" parsing mode, so we outlaw only tag combos
        // where the parsing rules cause implicit opens or closes to be added.
        // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-inbody
    
    
        switch (tag) {
          case 'h1':
          case 'h2':
          case 'h3':
          case 'h4':
          case 'h5':
          case 'h6':
            return parentTag !== 'h1' && parentTag !== 'h2' && parentTag !== 'h3' && parentTag !== 'h4' && parentTag !== 'h5' && parentTag !== 'h6';
    
          case 'rp':
          case 'rt':
            return impliedEndTags.indexOf(parentTag) === -1;
    
          case 'body':
          case 'caption':
          case 'col':
          case 'colgroup':
          case 'frameset':
          case 'frame':
          case 'head':
          case 'html':
          case 'tbody':
          case 'td':
          case 'tfoot':
          case 'th':
          case 'thead':
          case 'tr':
            // These tags are only valid with a few parents that have special child
            // parsing rules -- if we're down here, then none of those matched and
            // so we allow it only if we don't know what the parent is, as all other
            // cases are invalid.
            return parentTag == null;
        }
    
        return true;
      };
      /**
       * Returns whether
       */
    
    
      var findInvalidAncestorForTag = function (tag, ancestorInfo) {
        switch (tag) {
          case 'address':
          case 'article':
          case 'aside':
          case 'blockquote':
          case 'center':
          case 'details':
          case 'dialog':
          case 'dir':
          case 'div':
          case 'dl':
          case 'fieldset':
          case 'figcaption':
          case 'figure':
          case 'footer':
          case 'header':
          case 'hgroup':
          case 'main':
          case 'menu':
          case 'nav':
          case 'ol':
          case 'p':
          case 'section':
          case 'summary':
          case 'ul':
          case 'pre':
          case 'listing':
          case 'table':
          case 'hr':
          case 'xmp':
          case 'h1':
          case 'h2':
          case 'h3':
          case 'h4':
          case 'h5':
          case 'h6':
            return ancestorInfo.pTagInButtonScope;
    
          case 'form':
            return ancestorInfo.formTag || ancestorInfo.pTagInButtonScope;
    
          case 'li':
            return ancestorInfo.listItemTagAutoclosing;
    
          case 'dd':
          case 'dt':
            return ancestorInfo.dlItemTagAutoclosing;
    
          case 'button':
            return ancestorInfo.buttonTagInScope;
    
          case 'a':
            // Spec says something about storing a list of markers, but it sounds
            // equivalent to this check.
            return ancestorInfo.aTagInScope;
    
          case 'nobr':
            return ancestorInfo.nobrTagInScope;
        }
    
        return null;
      };
    
      var didWarn$1 = {};
    
      validateDOMNesting = function (childTag, childText, ancestorInfo) {
        ancestorInfo = ancestorInfo || emptyAncestorInfo;
        var parentInfo = ancestorInfo.current;
        var parentTag = parentInfo && parentInfo.tag;
    
        if (childText != null) {
          !(childTag == null) ? warningWithoutStack$1(false, 'validateDOMNesting: when childText is passed, childTag should be null') : void 0;
          childTag = '#text';
        }
    
        var invalidParent = isTagValidWithParent(childTag, parentTag) ? null : parentInfo;
        var invalidAncestor = invalidParent ? null : findInvalidAncestorForTag(childTag, ancestorInfo);
        var invalidParentOrAncestor = invalidParent || invalidAncestor;
    
        if (!invalidParentOrAncestor) {
          return;
        }
    
        var ancestorTag = invalidParentOrAncestor.tag;
        var addendum = getCurrentFiberStackInDev();
        var warnKey = !!invalidParent + '|' + childTag + '|' + ancestorTag + '|' + addendum;
    
        if (didWarn$1[warnKey]) {
          return;
        }
    
        didWarn$1[warnKey] = true;
        var tagDisplayName = childTag;
        var whitespaceInfo = '';
    
        if (childTag === '#text') {
          if (/\S/.test(childText)) {
            tagDisplayName = 'Text nodes';
          } else {
            tagDisplayName = 'Whitespace text nodes';
            whitespaceInfo = " Make sure you don't have any extra whitespace between tags on " + 'each line of your source code.';
          }
        } else {
          tagDisplayName = '<' + childTag + '>';
        }
    
        if (invalidParent) {
          var info = '';
    
          if (ancestorTag === 'table' && childTag === 'tr') {
            info += ' Add a <tbody>, <thead> or <tfoot> to your code to match the DOM tree generated by ' + 'the browser.';
          }
    
          warningWithoutStack$1(false, 'validateDOMNesting(...): %s cannot appear as a child of <%s>.%s%s%s', tagDisplayName, ancestorTag, whitespaceInfo, info, addendum);
        } else {
          warningWithoutStack$1(false, 'validateDOMNesting(...): %s cannot appear as a descendant of ' + '<%s>.%s', tagDisplayName, ancestorTag, addendum);
        }
      };
    }
    
    // can re-export everything from this module.
    
    function shim() {
      (function () {
        {
          {
            throw ReactError(Error("The current renderer does not support persistence. This error is likely caused by a bug in React. Please file an issue."));
          }
        }
      })();
    } // Persistence (when unsupported)
    
    
    var supportsPersistence = false;
    var cloneInstance = shim;
    var cloneFundamentalInstance = shim;
    var createContainerChildSet = shim;
    var appendChildToContainerChildSet = shim;
    var finalizeContainerChildren = shim;
    var replaceContainerChildren = shim;
    var cloneHiddenInstance = shim;
    var cloneHiddenTextInstance = shim;
    
    var SUPPRESS_HYDRATION_WARNING;
    
    {
      SUPPRESS_HYDRATION_WARNING = 'suppressHydrationWarning';
    }
    
    var SUSPENSE_START_DATA = '$';
    var SUSPENSE_END_DATA = '/$';
    var SUSPENSE_PENDING_START_DATA = '$?';
    var SUSPENSE_FALLBACK_START_DATA = '$!';
    var STYLE = 'style';
    var eventsEnabled = null;
    var selectionInformation = null;
    
    function shouldAutoFocusHostComponent(type, props) {
      switch (type) {
        case 'button':
        case 'input':
        case 'select':
        case 'textarea':
          return !!props.autoFocus;
      }
    
      return false;
    }
    
    function getRootHostContext(rootContainerInstance) {
      var type;
      var namespace;
      var nodeType = rootContainerInstance.nodeType;
    
      switch (nodeType) {
        case DOCUMENT_NODE:
        case DOCUMENT_FRAGMENT_NODE:
          {
            type = nodeType === DOCUMENT_NODE ? '#document' : '#fragment';
            var root = rootContainerInstance.documentElement;
            namespace = root ? root.namespaceURI : getChildNamespace(null, '');
            break;
          }
    
        default:
          {
            var container = nodeType === COMMENT_NODE ? rootContainerInstance.parentNode : rootContainerInstance;
            var ownNamespace = container.namespaceURI || null;
            type = container.tagName;
            namespace = getChildNamespace(ownNamespace, type);
            break;
          }
      }
    
      {
        var validatedTag = type.toLowerCase();
        var ancestorInfo = updatedAncestorInfo(null, validatedTag);
        return {
          namespace: namespace,
          ancestorInfo: ancestorInfo
        };
      }
    
      return namespace;
    }
    function getChildHostContext(parentHostContext, type, rootContainerInstance) {
      {
        var parentHostContextDev = parentHostContext;
        var namespace = getChildNamespace(parentHostContextDev.namespace, type);
        var ancestorInfo = updatedAncestorInfo(parentHostContextDev.ancestorInfo, type);
        return {
          namespace: namespace,
          ancestorInfo: ancestorInfo
        };
      }
    
      var parentNamespace = parentHostContext;
      return getChildNamespace(parentNamespace, type);
    }
    function getPublicInstance(instance) {
      return instance;
    }
    function prepareForCommit(containerInfo) {
      eventsEnabled = isEnabled();
      selectionInformation = getSelectionInformation();
      setEnabled(false);
    }
    function resetAfterCommit(containerInfo) {
      restoreSelection(selectionInformation);
      selectionInformation = null;
      setEnabled(eventsEnabled);
      eventsEnabled = null;
    }
    function createInstance(type, props, rootContainerInstance, hostContext, internalInstanceHandle) {
      var parentNamespace;
    
      {
        // TODO: take namespace into account when validating.
        var hostContextDev = hostContext;
        validateDOMNesting(type, null, hostContextDev.ancestorInfo);
    
        if (typeof props.children === 'string' || typeof props.children === 'number') {
          var string = '' + props.children;
          var ownAncestorInfo = updatedAncestorInfo(hostContextDev.ancestorInfo, type);
          validateDOMNesting(null, string, ownAncestorInfo);
        }
    
        parentNamespace = hostContextDev.namespace;
      }
    
      var domElement = createElement(type, props, rootContainerInstance, parentNamespace);
      precacheFiberNode(internalInstanceHandle, domElement);
      updateFiberProps(domElement, props);
      return domElement;
    }
    function appendInitialChild(parentInstance, child) {
      parentInstance.appendChild(child);
    }
    function finalizeInitialChildren(domElement, type, props, rootContainerInstance, hostContext) {
      setInitialProperties(domElement, type, props, rootContainerInstance);
      return shouldAutoFocusHostComponent(type, props);
    }
    function prepareUpdate(domElement, type, oldProps, newProps, rootContainerInstance, hostContext) {
      {
        var hostContextDev = hostContext;
    
        if (typeof newProps.children !== typeof oldProps.children && (typeof newProps.children === 'string' || typeof newProps.children === 'number')) {
          var string = '' + newProps.children;
          var ownAncestorInfo = updatedAncestorInfo(hostContextDev.ancestorInfo, type);
          validateDOMNesting(null, string, ownAncestorInfo);
        }
      }
    
      return diffProperties(domElement, type, oldProps, newProps, rootContainerInstance);
    }
    function shouldSetTextContent(type, props) {
      return type === 'textarea' || type === 'option' || type === 'noscript' || typeof props.children === 'string' || typeof props.children === 'number' || typeof props.dangerouslySetInnerHTML === 'object' && props.dangerouslySetInnerHTML !== null && props.dangerouslySetInnerHTML.__html != null;
    }
    function shouldDeprioritizeSubtree(type, props) {
      return !!props.hidden;
    }
    function createTextInstance(text, rootContainerInstance, hostContext, internalInstanceHandle) {
      {
        var hostContextDev = hostContext;
        validateDOMNesting(null, text, hostContextDev.ancestorInfo);
      }
    
      var textNode = createTextNode(text, rootContainerInstance);
      precacheFiberNode(internalInstanceHandle, textNode);
      return textNode;
    }
    var isPrimaryRenderer = true;
    var warnsIfNotActing = true; // This initialization code may run even on server environments
    // if a component just imports ReactDOM (e.g. for findDOMNode).
    // Some environments might not have setTimeout or clearTimeout.
    
    var scheduleTimeout = typeof setTimeout === 'function' ? setTimeout : undefined;
    var cancelTimeout = typeof clearTimeout === 'function' ? clearTimeout : undefined;
    var noTimeout = -1; // -------------------
    //     Mutation
    // -------------------
    
    var supportsMutation = true;
    function commitMount(domElement, type, newProps, internalInstanceHandle) {
      // Despite the naming that might imply otherwise, this method only
      // fires if there is an `Update` effect scheduled during mounting.
      // This happens if `finalizeInitialChildren` returns `true` (which it
      // does to implement the `autoFocus` attribute on the client). But
      // there are also other cases when this might happen (such as patching
      // up text content during hydration mismatch). So we'll check this again.
      if (shouldAutoFocusHostComponent(type, newProps)) {
        domElement.focus();
      }
    }
    function commitUpdate(domElement, updatePayload, type, oldProps, newProps, internalInstanceHandle) {
      // Update the props handle so that we know which props are the ones with
      // with current event handlers.
      updateFiberProps(domElement, newProps); // Apply the diff to the DOM node.
    
      updateProperties(domElement, updatePayload, type, oldProps, newProps);
    }
    function resetTextContent(domElement) {
      setTextContent(domElement, '');
    }
    function commitTextUpdate(textInstance, oldText, newText) {
      textInstance.nodeValue = newText;
    }
    function appendChild(parentInstance, child) {
      parentInstance.appendChild(child);
    }
    function appendChildToContainer(container, child) {
      var parentNode;
    
      if (container.nodeType === COMMENT_NODE) {
        parentNode = container.parentNode;
        parentNode.insertBefore(child, container);
      } else {
        parentNode = container;
        parentNode.appendChild(child);
      } // This container might be used for a portal.
      // If something inside a portal is clicked, that click should bubble
      // through the React tree. However, on Mobile Safari the click would
      // never bubble through the *DOM* tree unless an ancestor with onclick
      // event exists. So we wouldn't see it and dispatch it.
      // This is why we ensure that non React root containers have inline onclick
      // defined.
      // https://github.com/facebook/react/issues/11918
    
    
      var reactRootContainer = container._reactRootContainer;
    
      if ((reactRootContainer === null || reactRootContainer === undefined) && parentNode.onclick === null) {
        // TODO: This cast may not be sound for SVG, MathML or custom elements.
        trapClickOnNonInteractiveElement(parentNode);
      }
    }
    function insertBefore(parentInstance, child, beforeChild) {
      parentInstance.insertBefore(child, beforeChild);
    }
    function insertInContainerBefore(container, child, beforeChild) {
      if (container.nodeType === COMMENT_NODE) {
        container.parentNode.insertBefore(child, beforeChild);
      } else {
        container.insertBefore(child, beforeChild);
      }
    }
    function removeChild(parentInstance, child) {
      parentInstance.removeChild(child);
    }
    function removeChildFromContainer(container, child) {
      if (container.nodeType === COMMENT_NODE) {
        container.parentNode.removeChild(child);
      } else {
        container.removeChild(child);
      }
    }
    function clearSuspenseBoundary(parentInstance, suspenseInstance) {
      var node = suspenseInstance; // Delete all nodes within this suspense boundary.
      // There might be nested nodes so we need to keep track of how
      // deep we are and only break out when we're back on top.
    
      var depth = 0;
    
      do {
        var nextNode = node.nextSibling;
        parentInstance.removeChild(node);
    
        if (nextNode && nextNode.nodeType === COMMENT_NODE) {
          var data = nextNode.data;
    
          if (data === SUSPENSE_END_DATA) {
            if (depth === 0) {
              parentInstance.removeChild(nextNode); // Retry if any event replaying was blocked on this.
    
              retryIfBlockedOn(suspenseInstance);
              return;
            } else {
              depth--;
            }
          } else if (data === SUSPENSE_START_DATA || data === SUSPENSE_PENDING_START_DATA || data === SUSPENSE_FALLBACK_START_DATA) {
            depth++;
          }
        }
    
        node = nextNode;
      } while (node); // TODO: Warn, we didn't find the end comment boundary.
      // Retry if any event replaying was blocked on this.
    
    
      retryIfBlockedOn(suspenseInstance);
    }
    function clearSuspenseBoundaryFromContainer(container, suspenseInstance) {
      if (container.nodeType === COMMENT_NODE) {
        clearSuspenseBoundary(container.parentNode, suspenseInstance);
      } else if (container.nodeType === ELEMENT_NODE) {
        clearSuspenseBoundary(container, suspenseInstance);
      } else {} // Document nodes should never contain suspense boundaries.
      // Retry if any event replaying was blocked on this.
    
    
      retryIfBlockedOn(container);
    }
    function hideInstance(instance) {
      // TODO: Does this work for all element types? What about MathML? Should we
      // pass host context to this method?
      instance = instance;
      var style = instance.style;
    
      if (typeof style.setProperty === 'function') {
        style.setProperty('display', 'none', 'important');
      } else {
        style.display = 'none';
      }
    }
    function hideTextInstance(textInstance) {
      textInstance.nodeValue = '';
    }
    function unhideInstance(instance, props) {
      instance = instance;
      var styleProp = props[STYLE];
      var display = styleProp !== undefined && styleProp !== null && styleProp.hasOwnProperty('display') ? styleProp.display : null;
      instance.style.display = dangerousStyleValue('display', display);
    }
    function unhideTextInstance(textInstance, text) {
      textInstance.nodeValue = text;
    } // -------------------
    //     Hydration
    // -------------------
    
    var supportsHydration = true;
    function canHydrateInstance(instance, type, props) {
      if (instance.nodeType !== ELEMENT_NODE || type.toLowerCase() !== instance.nodeName.toLowerCase()) {
        return null;
      } // This has now been refined to an element node.
    
    
      return instance;
    }
    function canHydrateTextInstance(instance, text) {
      if (text === '' || instance.nodeType !== TEXT_NODE) {
        // Empty strings are not parsed by HTML so there won't be a correct match here.
        return null;
      } // This has now been refined to a text node.
    
    
      return instance;
    }
    function canHydrateSuspenseInstance(instance) {
      if (instance.nodeType !== COMMENT_NODE) {
        // Empty strings are not parsed by HTML so there won't be a correct match here.
        return null;
      } // This has now been refined to a suspense node.
    
    
      return instance;
    }
    function isSuspenseInstancePending(instance) {
      return instance.data === SUSPENSE_PENDING_START_DATA;
    }
    function isSuspenseInstanceFallback(instance) {
      return instance.data === SUSPENSE_FALLBACK_START_DATA;
    }
    function registerSuspenseInstanceRetry(instance, callback) {
      instance._reactRetry = callback;
    }
    
    function getNextHydratable(node) {
      // Skip non-hydratable nodes.
      for (; node != null; node = node.nextSibling) {
        var nodeType = node.nodeType;
    
        if (nodeType === ELEMENT_NODE || nodeType === TEXT_NODE) {
          break;
        }
    
        if (enableSuspenseServerRenderer) {
          if (nodeType === COMMENT_NODE) {
            var nodeData = node.data;
    
            if (nodeData === SUSPENSE_START_DATA || nodeData === SUSPENSE_FALLBACK_START_DATA || nodeData === SUSPENSE_PENDING_START_DATA) {
              break;
            }
          }
        }
      }
    
      return node;
    }
    
    function getNextHydratableSibling(instance) {
      return getNextHydratable(instance.nextSibling);
    }
    function getFirstHydratableChild(parentInstance) {
      return getNextHydratable(parentInstance.firstChild);
    }
    function hydrateInstance(instance, type, props, rootContainerInstance, hostContext, internalInstanceHandle) {
      precacheFiberNode(internalInstanceHandle, instance); // TODO: Possibly defer this until the commit phase where all the events
      // get attached.
    
      updateFiberProps(instance, props);
      var parentNamespace;
    
      {
        var hostContextDev = hostContext;
        parentNamespace = hostContextDev.namespace;
      }
    
      return diffHydratedProperties(instance, type, props, parentNamespace, rootContainerInstance);
    }
    function hydrateTextInstance(textInstance, text, internalInstanceHandle) {
      precacheFiberNode(internalInstanceHandle, textInstance);
      return diffHydratedText(textInstance, text);
    }
    function hydrateSuspenseInstance(suspenseInstance, internalInstanceHandle) {
      precacheFiberNode(internalInstanceHandle, suspenseInstance);
    }
    function getNextHydratableInstanceAfterSuspenseInstance(suspenseInstance) {
      var node = suspenseInstance.nextSibling; // Skip past all nodes within this suspense boundary.
      // There might be nested nodes so we need to keep track of how
      // deep we are and only break out when we're back on top.
    
      var depth = 0;
    
      while (node) {
        if (node.nodeType === COMMENT_NODE) {
          var data = node.data;
    
          if (data === SUSPENSE_END_DATA) {
            if (depth === 0) {
              return getNextHydratableSibling(node);
            } else {
              depth--;
            }
          } else if (data === SUSPENSE_START_DATA || data === SUSPENSE_FALLBACK_START_DATA || data === SUSPENSE_PENDING_START_DATA) {
            depth++;
          }
        }
    
        node = node.nextSibling;
      } // TODO: Warn, we didn't find the end comment boundary.
    
    
      return null;
    } // Returns the SuspenseInstance if this node is a direct child of a
    // SuspenseInstance. I.e. if its previous sibling is a Comment with
    // SUSPENSE_x_START_DATA. Otherwise, null.
    
    function getParentSuspenseInstance(targetInstance) {
      var node = targetInstance.previousSibling; // Skip past all nodes within this suspense boundary.
      // There might be nested nodes so we need to keep track of how
      // deep we are and only break out when we're back on top.
    
      var depth = 0;
    
      while (node) {
        if (node.nodeType === COMMENT_NODE) {
          var data = node.data;
    
          if (data === SUSPENSE_START_DATA || data === SUSPENSE_FALLBACK_START_DATA || data === SUSPENSE_PENDING_START_DATA) {
            if (depth === 0) {
              return node;
            } else {
              depth--;
            }
          } else if (data === SUSPENSE_END_DATA) {
            depth++;
          }
        }
    
        node = node.previousSibling;
      }
    
      return null;
    }
    function commitHydratedContainer(container) {
      // Retry if any event replaying was blocked on this.
      retryIfBlockedOn(container);
    }
    function commitHydratedSuspenseInstance(suspenseInstance) {
      // Retry if any event replaying was blocked on this.
      retryIfBlockedOn(suspenseInstance);
    }
    function didNotMatchHydratedContainerTextInstance(parentContainer, textInstance, text) {
      {
        warnForUnmatchedText(textInstance, text);
      }
    }
    function didNotMatchHydratedTextInstance(parentType, parentProps, parentInstance, textInstance, text) {
      if ( true && parentProps[SUPPRESS_HYDRATION_WARNING] !== true) {
        warnForUnmatchedText(textInstance, text);
      }
    }
    function didNotHydrateContainerInstance(parentContainer, instance) {
      {
        if (instance.nodeType === ELEMENT_NODE) {
          warnForDeletedHydratableElement(parentContainer, instance);
        } else if (instance.nodeType === COMMENT_NODE) {// TODO: warnForDeletedHydratableSuspenseBoundary
        } else {
          warnForDeletedHydratableText(parentContainer, instance);
        }
      }
    }
    function didNotHydrateInstance(parentType, parentProps, parentInstance, instance) {
      if ( true && parentProps[SUPPRESS_HYDRATION_WARNING] !== true) {
        if (instance.nodeType === ELEMENT_NODE) {
          warnForDeletedHydratableElement(parentInstance, instance);
        } else if (instance.nodeType === COMMENT_NODE) {// TODO: warnForDeletedHydratableSuspenseBoundary
        } else {
          warnForDeletedHydratableText(parentInstance, instance);
        }
      }
    }
    function didNotFindHydratableContainerInstance(parentContainer, type, props) {
      {
        warnForInsertedHydratedElement(parentContainer, type, props);
      }
    }
    function didNotFindHydratableContainerTextInstance(parentContainer, text) {
      {
        warnForInsertedHydratedText(parentContainer, text);
      }
    }
    
    function didNotFindHydratableInstance(parentType, parentProps, parentInstance, type, props) {
      if ( true && parentProps[SUPPRESS_HYDRATION_WARNING] !== true) {
        warnForInsertedHydratedElement(parentInstance, type, props);
      }
    }
    function didNotFindHydratableTextInstance(parentType, parentProps, parentInstance, text) {
      if ( true && parentProps[SUPPRESS_HYDRATION_WARNING] !== true) {
        warnForInsertedHydratedText(parentInstance, text);
      }
    }
    function didNotFindHydratableSuspenseInstance(parentType, parentProps, parentInstance) {
      if ( true && parentProps[SUPPRESS_HYDRATION_WARNING] !== true) {// TODO: warnForInsertedHydratedSuspense(parentInstance);
      }
    }
    function mountResponderInstance(responder, responderInstance, responderProps, responderState, instance) {
      // Listen to events
      var doc = instance.ownerDocument;
      var _ref = responder,
          rootEventTypes = _ref.rootEventTypes,
          targetEventTypes = _ref.targetEventTypes;
    
      if (targetEventTypes !== null) {
        listenToEventResponderEventTypes(targetEventTypes, doc);
      }
    
      if (rootEventTypes !== null) {
        addRootEventTypesForResponderInstance(responderInstance, rootEventTypes);
        listenToEventResponderEventTypes(rootEventTypes, doc);
      }
    
      mountEventResponder(responder, responderInstance, responderProps, responderState);
      return responderInstance;
    }
    function unmountResponderInstance(responderInstance) {
      if (enableFlareAPI) {
        // TODO stop listening to targetEventTypes
        unmountEventResponder(responderInstance);
      }
    }
    function getFundamentalComponentInstance(fundamentalInstance) {
      if (enableFundamentalAPI) {
        var currentFiber = fundamentalInstance.currentFiber,
            impl = fundamentalInstance.impl,
            props = fundamentalInstance.props,
            state = fundamentalInstance.state;
        var instance = impl.getInstance(null, props, state);
        precacheFiberNode(currentFiber, instance);
        return instance;
      } // Because of the flag above, this gets around the Flow error;
    
    
      return null;
    }
    function mountFundamentalComponent(fundamentalInstance) {
      if (enableFundamentalAPI) {
        var impl = fundamentalInstance.impl,
            instance = fundamentalInstance.instance,
            props = fundamentalInstance.props,
            state = fundamentalInstance.state;
        var onMount = impl.onMount;
    
        if (onMount !== undefined) {
          onMount(null, instance, props, state);
        }
      }
    }
    function shouldUpdateFundamentalComponent(fundamentalInstance) {
      if (enableFundamentalAPI) {
        var impl = fundamentalInstance.impl,
            prevProps = fundamentalInstance.prevProps,
            props = fundamentalInstance.props,
            state = fundamentalInstance.state;
        var shouldUpdate = impl.shouldUpdate;
    
        if (shouldUpdate !== undefined) {
          return shouldUpdate(null, prevProps, props, state);
        }
      }
    
      return true;
    }
    function updateFundamentalComponent(fundamentalInstance) {
      if (enableFundamentalAPI) {
        var impl = fundamentalInstance.impl,
            instance = fundamentalInstance.instance,
            prevProps = fundamentalInstance.prevProps,
            props = fundamentalInstance.props,
            state = fundamentalInstance.state;
        var onUpdate = impl.onUpdate;
    
        if (onUpdate !== undefined) {
          onUpdate(null, instance, prevProps, props, state);
        }
      }
    }
    function unmountFundamentalComponent(fundamentalInstance) {
      if (enableFundamentalAPI) {
        var impl = fundamentalInstance.impl,
            instance = fundamentalInstance.instance,
            props = fundamentalInstance.props,
            state = fundamentalInstance.state;
        var onUnmount = impl.onUnmount;
    
        if (onUnmount !== undefined) {
          onUnmount(null, instance, props, state);
        }
      }
    }
    
    var randomKey = Math.random().toString(36).slice(2);
    var internalInstanceKey = '__reactInternalInstance$' + randomKey;
    var internalEventHandlersKey = '__reactEventHandlers$' + randomKey;
    var internalContainerInstanceKey = '__reactContainere$' + randomKey;
    function precacheFiberNode(hostInst, node) {
      node[internalInstanceKey] = hostInst;
    }
    function markContainerAsRoot(hostRoot, node) {
      node[internalContainerInstanceKey] = hostRoot;
    } // Given a DOM node, return the closest HostComponent or HostText fiber ancestor.
    // If the target node is part of a hydrated or not yet rendered subtree, then
    // this may also return a SuspenseComponent or HostRoot to indicate that.
    // Conceptually the HostRoot fiber is a child of the Container node. So if you
    // pass the Container node as the targetNode, you wiill not actually get the
    // HostRoot back. To get to the HostRoot, you need to pass a child of it.
    // The same thing applies to Suspense boundaries.
    
    function getClosestInstanceFromNode(targetNode) {
      var targetInst = targetNode[internalInstanceKey];
    
      if (targetInst) {
        // Don't return HostRoot or SuspenseComponent here.
        return targetInst;
      } // If the direct event target isn't a React owned DOM node, we need to look
      // to see if one of its parents is a React owned DOM node.
    
    
      var parentNode = targetNode.parentNode;
    
      while (parentNode) {
        // We'll check if this is a container root that could include
        // React nodes in the future. We need to check this first because
        // if we're a child of a dehydrated container, we need to first
        // find that inner container before moving on to finding the parent
        // instance. Note that we don't check this field on  the targetNode
        // itself because the fibers are conceptually between the container
        // node and the first child. It isn't surrounding the container node.
        // If it's not a container, we check if it's an instance.
        targetInst = parentNode[internalContainerInstanceKey] || parentNode[internalInstanceKey];
    
        if (targetInst) {
          // Since this wasn't the direct target of the event, we might have
          // stepped past dehydrated DOM nodes to get here. However they could
          // also have been non-React nodes. We need to answer which one.
          // If we the instance doesn't have any children, then there can't be
          // a nested suspense boundary within it. So we can use this as a fast
          // bailout. Most of the time, when people add non-React children to
          // the tree, it is using a ref to a child-less DOM node.
          // Normally we'd only need to check one of the fibers because if it
          // has ever gone from having children to deleting them or vice versa
          // it would have deleted the dehydrated boundary nested inside already.
          // However, since the HostRoot starts out with an alternate it might
          // have one on the alternate so we need to check in case this was a
          // root.
          var alternate = targetInst.alternate;
    
          if (targetInst.child !== null || alternate !== null && alternate.child !== null) {
            // Next we need to figure out if the node that skipped past is
            // nested within a dehydrated boundary and if so, which one.
            var suspenseInstance = getParentSuspenseInstance(targetNode);
    
            while (suspenseInstance !== null) {
              // We found a suspense instance. That means that we haven't
              // hydrated it yet. Even though we leave the comments in the
              // DOM after hydrating, and there are boundaries in the DOM
              // that could already be hydrated, we wouldn't have found them
              // through this pass since if the target is hydrated it would
              // have had an internalInstanceKey on it.
              // Let's get the fiber associated with the SuspenseComponent
              // as the deepest instance.
              var targetSuspenseInst = suspenseInstance[internalInstanceKey];
    
              if (targetSuspenseInst) {
                return targetSuspenseInst;
              } // If we don't find a Fiber on the comment, it might be because
              // we haven't gotten to hydrate it yet. There might still be a
              // parent boundary that hasn't above this one so we need to find
              // the outer most that is known.
    
    
              suspenseInstance = getParentSuspenseInstance(suspenseInstance); // If we don't find one, then that should mean that the parent
              // host component also hasn't hydrated yet. We can return it
              // below since it will bail out on the isMounted check later.
            }
          }
    
          return targetInst;
        }
    
        targetNode = parentNode;
        parentNode = targetNode.parentNode;
      }
    
      return null;
    }
    /**
     * Given a DOM node, return the ReactDOMComponent or ReactDOMTextComponent
     * instance, or null if the node was not rendered by this React.
     */
    
    function getInstanceFromNode$1(node) {
      var inst = node[internalInstanceKey] || node[internalContainerInstanceKey];
    
      if (inst) {
        if (inst.tag === HostComponent || inst.tag === HostText || inst.tag === SuspenseComponent || inst.tag === HostRoot) {
          return inst;
        } else {
          return null;
        }
      }
    
      return null;
    }
    /**
     * Given a ReactDOMComponent or ReactDOMTextComponent, return the corresponding
     * DOM node.
     */
    
    function getNodeFromInstance$1(inst) {
      if (inst.tag === HostComponent || inst.tag === HostText) {
        // In Fiber this, is just the state node right now. We assume it will be
        // a host component or host text.
        return inst.stateNode;
      } // Without this first invariant, passing a non-DOM-component triggers the next
      // invariant for a missing parent, which is super confusing.
    
    
      (function () {
        {
          {
            throw ReactError(Error("getNodeFromInstance: Invalid argument."));
          }
        }
      })();
    }
    function getFiberCurrentPropsFromNode$1(node) {
      return node[internalEventHandlersKey] || null;
    }
    function updateFiberProps(node, props) {
      node[internalEventHandlersKey] = props;
    }
    
    /**
     * These variables store information about text content of a target node,
     * allowing comparison of content before and after a given event.
     *
     * Identify the node where selection currently begins, then observe
     * both its text content and its current position in the DOM. Since the
     * browser may natively replace the target node during composition, we can
     * use its position to find its replacement.
     *
     *
     */
    var root = null;
    var startText = null;
    var fallbackText = null;
    function initialize(nativeEventTarget) {
      root = nativeEventTarget;
      startText = getText();
      return true;
    }
    function reset() {
      root = null;
      startText = null;
      fallbackText = null;
    }
    function getData() {
      if (fallbackText) {
        return fallbackText;
      }
    
      var start;
      var startValue = startText;
      var startLength = startValue.length;
      var end;
      var endValue = getText();
      var endLength = endValue.length;
    
      for (start = 0; start < startLength; start++) {
        if (startValue[start] !== endValue[start]) {
          break;
        }
      }
    
      var minEnd = startLength - start;
    
      for (end = 1; end <= minEnd; end++) {
        if (startValue[startLength - end] !== endValue[endLength - end]) {
          break;
        }
      }
    
      var sliceTail = end > 1 ? 1 - end : undefined;
      fallbackText = endValue.slice(start, sliceTail);
      return fallbackText;
    }
    function getText() {
      if ('value' in root) {
        return root.value;
      }
    
      return root.textContent;
    }
    
    /**
     * @interface Event
     * @see http://www.w3.org/TR/DOM-Level-3-Events/#events-compositionevents
     */
    
    var SyntheticCompositionEvent = SyntheticEvent.extend({
      data: null
    });
    
    /**
     * @interface Event
     * @see http://www.w3.org/TR/2013/WD-DOM-Level-3-Events-20131105
     *      /#events-inputevents
     */
    
    var SyntheticInputEvent = SyntheticEvent.extend({
      data: null
    });
    
    var END_KEYCODES = [9, 13, 27, 32]; // Tab, Return, Esc, Space
    
    var START_KEYCODE = 229;
    var canUseCompositionEvent = canUseDOM && 'CompositionEvent' in window;
    var documentMode = null;
    
    if (canUseDOM && 'documentMode' in document) {
      documentMode = document.documentMode;
    } // Webkit offers a very useful `textInput` event that can be used to
    // directly represent `beforeInput`. The IE `textinput` event is not as
    // useful, so we don't use it.
    
    
    var canUseTextInputEvent = canUseDOM && 'TextEvent' in window && !documentMode; // In IE9+, we have access to composition events, but the data supplied
    // by the native compositionend event may be incorrect. Japanese ideographic
    // spaces, for instance (\u3000) are not recorded correctly.
    
    var useFallbackCompositionData = canUseDOM && (!canUseCompositionEvent || documentMode && documentMode > 8 && documentMode <= 11);
    var SPACEBAR_CODE = 32;
    var SPACEBAR_CHAR = String.fromCharCode(SPACEBAR_CODE); // Events and their corresponding property names.
    
    var eventTypes$1 = {
      beforeInput: {
        phasedRegistrationNames: {
          bubbled: 'onBeforeInput',
          captured: 'onBeforeInputCapture'
        },
        dependencies: [TOP_COMPOSITION_END, TOP_KEY_PRESS, TOP_TEXT_INPUT, TOP_PASTE]
      },
      compositionEnd: {
        phasedRegistrationNames: {
          bubbled: 'onCompositionEnd',
          captured: 'onCompositionEndCapture'
        },
        dependencies: [TOP_BLUR, TOP_COMPOSITION_END, TOP_KEY_DOWN, TOP_KEY_PRESS, TOP_KEY_UP, TOP_MOUSE_DOWN]
      },
      compositionStart: {
        phasedRegistrationNames: {
          bubbled: 'onCompositionStart',
          captured: 'onCompositionStartCapture'
        },
        dependencies: [TOP_BLUR, TOP_COMPOSITION_START, TOP_KEY_DOWN, TOP_KEY_PRESS, TOP_KEY_UP, TOP_MOUSE_DOWN]
      },
      compositionUpdate: {
        phasedRegistrationNames: {
          bubbled: 'onCompositionUpdate',
          captured: 'onCompositionUpdateCapture'
        },
        dependencies: [TOP_BLUR, TOP_COMPOSITION_UPDATE, TOP_KEY_DOWN, TOP_KEY_PRESS, TOP_KEY_UP, TOP_MOUSE_DOWN]
      }
    }; // Track whether we've ever handled a keypress on the space key.
    
    var hasSpaceKeypress = false;
    /**
     * Return whether a native keypress event is assumed to be a command.
     * This is required because Firefox fires `keypress` events for key commands
     * (cut, copy, select-all, etc.) even though no character is inserted.
     */
    
    function isKeypressCommand(nativeEvent) {
      return (nativeEvent.ctrlKey || nativeEvent.altKey || nativeEvent.metaKey) && // ctrlKey && altKey is equivalent to AltGr, and is not a command.
      !(nativeEvent.ctrlKey && nativeEvent.altKey);
    }
    /**
     * Translate native top level events into event types.
     *
     * @param {string} topLevelType
     * @return {object}
     */
    
    
    function getCompositionEventType(topLevelType) {
      switch (topLevelType) {
        case TOP_COMPOSITION_START:
          return eventTypes$1.compositionStart;
    
        case TOP_COMPOSITION_END:
          return eventTypes$1.compositionEnd;
    
        case TOP_COMPOSITION_UPDATE:
          return eventTypes$1.compositionUpdate;
      }
    }
    /**
     * Does our fallback best-guess model think this event signifies that
     * composition has begun?
     *
     * @param {string} topLevelType
     * @param {object} nativeEvent
     * @return {boolean}
     */
    
    
    function isFallbackCompositionStart(topLevelType, nativeEvent) {
      return topLevelType === TOP_KEY_DOWN && nativeEvent.keyCode === START_KEYCODE;
    }
    /**
     * Does our fallback mode think that this event is the end of composition?
     *
     * @param {string} topLevelType
     * @param {object} nativeEvent
     * @return {boolean}
     */
    
    
    function isFallbackCompositionEnd(topLevelType, nativeEvent) {
      switch (topLevelType) {
        case TOP_KEY_UP:
          // Command keys insert or clear IME input.
          return END_KEYCODES.indexOf(nativeEvent.keyCode) !== -1;
    
        case TOP_KEY_DOWN:
          // Expect IME keyCode on each keydown. If we get any other
          // code we must have exited earlier.
          return nativeEvent.keyCode !== START_KEYCODE;
    
        case TOP_KEY_PRESS:
        case TOP_MOUSE_DOWN:
        case TOP_BLUR:
          // Events are not possible without cancelling IME.
          return true;
    
        default:
          return false;
      }
    }
    /**
     * Google Input Tools provides composition data via a CustomEvent,
     * with the `data` property populated in the `detail` object. If this
     * is available on the event object, use it. If not, this is a plain
     * composition event and we have nothing special to extract.
     *
     * @param {object} nativeEvent
     * @return {?string}
     */
    
    
    function getDataFromCustomEvent(nativeEvent) {
      var detail = nativeEvent.detail;
    
      if (typeof detail === 'object' && 'data' in detail) {
        return detail.data;
      }
    
      return null;
    }
    /**
     * Check if a composition event was triggered by Korean IME.
     * Our fallback mode does not work well with IE's Korean IME,
     * so just use native composition events when Korean IME is used.
     * Although CompositionEvent.locale property is deprecated,
     * it is available in IE, where our fallback mode is enabled.
     *
     * @param {object} nativeEvent
     * @return {boolean}
     */
    
    
    function isUsingKoreanIME(nativeEvent) {
      return nativeEvent.locale === 'ko';
    } // Track the current IME composition status, if any.
    
    
    var isComposing = false;
    /**
     * @return {?object} A SyntheticCompositionEvent.
     */
    
    function extractCompositionEvent(topLevelType, targetInst, nativeEvent, nativeEventTarget) {
      var eventType;
      var fallbackData;
    
      if (canUseCompositionEvent) {
        eventType = getCompositionEventType(topLevelType);
      } else if (!isComposing) {
        if (isFallbackCompositionStart(topLevelType, nativeEvent)) {
          eventType = eventTypes$1.compositionStart;
        }
      } else if (isFallbackCompositionEnd(topLevelType, nativeEvent)) {
        eventType = eventTypes$1.compositionEnd;
      }
    
      if (!eventType) {
        return null;
      }
    
      if (useFallbackCompositionData && !isUsingKoreanIME(nativeEvent)) {
        // The current composition is stored statically and must not be
        // overwritten while composition continues.
        if (!isComposing && eventType === eventTypes$1.compositionStart) {
          isComposing = initialize(nativeEventTarget);
        } else if (eventType === eventTypes$1.compositionEnd) {
          if (isComposing) {
            fallbackData = getData();
          }
        }
      }
    
      var event = SyntheticCompositionEvent.getPooled(eventType, targetInst, nativeEvent, nativeEventTarget);
    
      if (fallbackData) {
        // Inject data generated from fallback path into the synthetic event.
        // This matches the property of native CompositionEventInterface.
        event.data = fallbackData;
      } else {
        var customData = getDataFromCustomEvent(nativeEvent);
    
        if (customData !== null) {
          event.data = customData;
        }
      }
    
      accumulateTwoPhaseDispatches(event);
      return event;
    }
    /**
     * @param {TopLevelType} topLevelType Number from `TopLevelType`.
     * @param {object} nativeEvent Native browser event.
     * @return {?string} The string corresponding to this `beforeInput` event.
     */
    
    
    function getNativeBeforeInputChars(topLevelType, nativeEvent) {
      switch (topLevelType) {
        case TOP_COMPOSITION_END:
          return getDataFromCustomEvent(nativeEvent);
    
        case TOP_KEY_PRESS:
          /**
           * If native `textInput` events are available, our goal is to make
           * use of them. However, there is a special case: the spacebar key.
           * In Webkit, preventing default on a spacebar `textInput` event
           * cancels character insertion, but it *also* causes the browser
           * to fall back to its default spacebar behavior of scrolling the
           * page.
           *
           * Tracking at:
           * https://code.google.com/p/chromium/issues/detail?id=355103
           *
           * To avoid this issue, use the keypress event as if no `textInput`
           * event is available.
           */
          var which = nativeEvent.which;
    
          if (which !== SPACEBAR_CODE) {
            return null;
          }
    
          hasSpaceKeypress = true;
          return SPACEBAR_CHAR;
    
        case TOP_TEXT_INPUT:
          // Record the characters to be added to the DOM.
          var chars = nativeEvent.data; // If it's a spacebar character, assume that we have already handled
          // it at the keypress level and bail immediately. Android Chrome
          // doesn't give us keycodes, so we need to ignore it.
    
          if (chars === SPACEBAR_CHAR && hasSpaceKeypress) {
            return null;
          }
    
          return chars;
    
        default:
          // For other native event types, do nothing.
          return null;
      }
    }
    /**
     * For browsers that do not provide the `textInput` event, extract the
     * appropriate string to use for SyntheticInputEvent.
     *
     * @param {number} topLevelType Number from `TopLevelEventTypes`.
     * @param {object} nativeEvent Native browser event.
     * @return {?string} The fallback string for this `beforeInput` event.
     */
    
    
    function getFallbackBeforeInputChars(topLevelType, nativeEvent) {
      // If we are currently composing (IME) and using a fallback to do so,
      // try to extract the composed characters from the fallback object.
      // If composition event is available, we extract a string only at
      // compositionevent, otherwise extract it at fallback events.
      if (isComposing) {
        if (topLevelType === TOP_COMPOSITION_END || !canUseCompositionEvent && isFallbackCompositionEnd(topLevelType, nativeEvent)) {
          var chars = getData();
          reset();
          isComposing = false;
          return chars;
        }
    
        return null;
      }
    
      switch (topLevelType) {
        case TOP_PASTE:
          // If a paste event occurs after a keypress, throw out the input
          // chars. Paste events should not lead to BeforeInput events.
          return null;
    
        case TOP_KEY_PRESS:
          /**
           * As of v27, Firefox may fire keypress events even when no character
           * will be inserted. A few possibilities:
           *
           * - `which` is `0`. Arrow keys, Esc key, etc.
           *
           * - `which` is the pressed key code, but no char is available.
           *   Ex: 'AltGr + d` in Polish. There is no modified character for
           *   this key combination and no character is inserted into the
           *   document, but FF fires the keypress for char code `100` anyway.
           *   No `input` event will occur.
           *
           * - `which` is the pressed key code, but a command combination is
           *   being used. Ex: `Cmd+C`. No character is inserted, and no
           *   `input` event will occur.
           */
          if (!isKeypressCommand(nativeEvent)) {
            // IE fires the `keypress` event when a user types an emoji via
            // Touch keyboard of Windows.  In such a case, the `char` property
            // holds an emoji character like `\uD83D\uDE0A`.  Because its length
            // is 2, the property `which` does not represent an emoji correctly.
            // In such a case, we directly return the `char` property instead of
            // using `which`.
            if (nativeEvent.char && nativeEvent.char.length > 1) {
              return nativeEvent.char;
            } else if (nativeEvent.which) {
              return String.fromCharCode(nativeEvent.which);
            }
          }
    
          return null;
    
        case TOP_COMPOSITION_END:
          return useFallbackCompositionData && !isUsingKoreanIME(nativeEvent) ? null : nativeEvent.data;
    
        default:
          return null;
      }
    }
    /**
     * Extract a SyntheticInputEvent for `beforeInput`, based on either native
     * `textInput` or fallback behavior.
     *
     * @return {?object} A SyntheticInputEvent.
     */
    
    
    function extractBeforeInputEvent(topLevelType, targetInst, nativeEvent, nativeEventTarget) {
      var chars;
    
      if (canUseTextInputEvent) {
        chars = getNativeBeforeInputChars(topLevelType, nativeEvent);
      } else {
        chars = getFallbackBeforeInputChars(topLevelType, nativeEvent);
      } // If no characters are being inserted, no BeforeInput event should
      // be fired.
    
    
      if (!chars) {
        return null;
      }
    
      var event = SyntheticInputEvent.getPooled(eventTypes$1.beforeInput, targetInst, nativeEvent, nativeEventTarget);
      event.data = chars;
      accumulateTwoPhaseDispatches(event);
      return event;
    }
    /**
     * Create an `onBeforeInput` event to match
     * http://www.w3.org/TR/2013/WD-DOM-Level-3-Events-20131105/#events-inputevents.
     *
     * This event plugin is based on the native `textInput` event
     * available in Chrome, Safari, Opera, and IE. This event fires after
     * `onKeyPress` and `onCompositionEnd`, but before `onInput`.
     *
     * `beforeInput` is spec'd but not implemented in any browsers, and
     * the `input` event does not provide any useful information about what has
     * actually been added, contrary to the spec. Thus, `textInput` is the best
     * available event to identify the characters that have actually been inserted
     * into the target node.
     *
     * This plugin is also responsible for emitting `composition` events, thus
     * allowing us to share composition fallback code for both `beforeInput` and
     * `composition` event types.
     */
    
    
    var BeforeInputEventPlugin = {
      eventTypes: eventTypes$1,
      extractEvents: function (topLevelType, eventSystemFlags, targetInst, nativeEvent, nativeEventTarget) {
        var composition = extractCompositionEvent(topLevelType, targetInst, nativeEvent, nativeEventTarget);
        var beforeInput = extractBeforeInputEvent(topLevelType, targetInst, nativeEvent, nativeEventTarget);
    
        if (composition === null) {
          return beforeInput;
        }
    
        if (beforeInput === null) {
          return composition;
        }
    
        return [composition, beforeInput];
      }
    };
    
    /**
     * @see http://www.whatwg.org/specs/web-apps/current-work/multipage/the-input-element.html#input-type-attr-summary
     */
    var supportedInputTypes = {
      color: true,
      date: true,
      datetime: true,
      'datetime-local': true,
      email: true,
      month: true,
      number: true,
      password: true,
      range: true,
      search: true,
      tel: true,
      text: true,
      time: true,
      url: true,
      week: true
    };
    
    function isTextInputElement(elem) {
      var nodeName = elem && elem.nodeName && elem.nodeName.toLowerCase();
    
      if (nodeName === 'input') {
        return !!supportedInputTypes[elem.type];
      }
    
      if (nodeName === 'textarea') {
        return true;
      }
    
      return false;
    }
    
    var eventTypes$2 = {
      change: {
        phasedRegistrationNames: {
          bubbled: 'onChange',
          captured: 'onChangeCapture'
        },
        dependencies: [TOP_BLUR, TOP_CHANGE, TOP_CLICK, TOP_FOCUS, TOP_INPUT, TOP_KEY_DOWN, TOP_KEY_UP, TOP_SELECTION_CHANGE]
      }
    };
    
    function createAndAccumulateChangeEvent(inst, nativeEvent, target) {
      var event = SyntheticEvent.getPooled(eventTypes$2.change, inst, nativeEvent, target);
      event.type = 'change'; // Flag this event loop as needing state restore.
    
      enqueueStateRestore(target);
      accumulateTwoPhaseDispatches(event);
      return event;
    }
    /**
     * For IE shims
     */
    
    
    var activeElement = null;
    var activeElementInst = null;
    /**
     * SECTION: handle `change` event
     */
    
    function shouldUseChangeEvent(elem) {
      var nodeName = elem.nodeName && elem.nodeName.toLowerCase();
      return nodeName === 'select' || nodeName === 'input' && elem.type === 'file';
    }
    
    function manualDispatchChangeEvent(nativeEvent) {
      var event = createAndAccumulateChangeEvent(activeElementInst, nativeEvent, getEventTarget(nativeEvent)); // If change and propertychange bubbled, we'd just bind to it like all the
      // other events and have it go through ReactBrowserEventEmitter. Since it
      // doesn't, we manually listen for the events and so we have to enqueue and
      // process the abstract event manually.
      //
      // Batching is necessary here in order to ensure that all event handlers run
      // before the next rerender (including event handlers attached to ancestor
      // elements instead of directly on the input). Without this, controlled
      // components don't work properly in conjunction with event bubbling because
      // the component is rerendered and the value reverted before all the event
      // handlers can run. See https://github.com/facebook/react/issues/708.
    
      batchedUpdates(runEventInBatch, event);
    }
    
    function runEventInBatch(event) {
      runEventsInBatch(event);
    }
    
    function getInstIfValueChanged(targetInst) {
      var targetNode = getNodeFromInstance$1(targetInst);
    
      if (updateValueIfChanged(targetNode)) {
        return targetInst;
      }
    }
    
    function getTargetInstForChangeEvent(topLevelType, targetInst) {
      if (topLevelType === TOP_CHANGE) {
        return targetInst;
      }
    }
    /**
     * SECTION: handle `input` event
     */
    
    
    var isInputEventSupported = false;
    
    if (canUseDOM) {
      // IE9 claims to support the input event but fails to trigger it when
      // deleting text, so we ignore its input events.
      isInputEventSupported = isEventSupported('input') && (!document.documentMode || document.documentMode > 9);
    }
    /**
     * (For IE <=9) Starts tracking propertychange events on the passed-in element
     * and override the value property so that we can distinguish user events from
     * value changes in JS.
     */
    
    
    function startWatchingForValueChange(target, targetInst) {
      activeElement = target;
      activeElementInst = targetInst;
      activeElement.attachEvent('onpropertychange', handlePropertyChange);
    }
    /**
     * (For IE <=9) Removes the event listeners from the currently-tracked element,
     * if any exists.
     */
    
    
    function stopWatchingForValueChange() {
      if (!activeElement) {
        return;
      }
    
      activeElement.detachEvent('onpropertychange', handlePropertyChange);
      activeElement = null;
      activeElementInst = null;
    }
    /**
     * (For IE <=9) Handles a propertychange event, sending a `change` event if
     * the value of the active element has changed.
     */
    
    
    function handlePropertyChange(nativeEvent) {
      if (nativeEvent.propertyName !== 'value') {
        return;
      }
    
      if (getInstIfValueChanged(activeElementInst)) {
        manualDispatchChangeEvent(nativeEvent);
      }
    }
    
    function handleEventsForInputEventPolyfill(topLevelType, target, targetInst) {
      if (topLevelType === TOP_FOCUS) {
        // In IE9, propertychange fires for most input events but is buggy and
        // doesn't fire when text is deleted, but conveniently, selectionchange
        // appears to fire in all of the remaining cases so we catch those and
        // forward the event if the value has changed
        // In either case, we don't want to call the event handler if the value
        // is changed from JS so we redefine a setter for `.value` that updates
        // our activeElementValue variable, allowing us to ignore those changes
        //
        // stopWatching() should be a noop here but we call it just in case we
        // missed a blur event somehow.
        stopWatchingForValueChange();
        startWatchingForValueChange(target, targetInst);
      } else if (topLevelType === TOP_BLUR) {
        stopWatchingForValueChange();
      }
    } // For IE8 and IE9.
    
    
    function getTargetInstForInputEventPolyfill(topLevelType, targetInst) {
      if (topLevelType === TOP_SELECTION_CHANGE || topLevelType === TOP_KEY_UP || topLevelType === TOP_KEY_DOWN) {
        // On the selectionchange event, the target is just document which isn't
        // helpful for us so just check activeElement instead.
        //
        // 99% of the time, keydown and keyup aren't necessary. IE8 fails to fire
        // propertychange on the first input event after setting `value` from a
        // script and fires only keydown, keypress, keyup. Catching keyup usually
        // gets it and catching keydown lets us fire an event for the first
        // keystroke if user does a key repeat (it'll be a little delayed: right
        // before the second keystroke). Other input methods (e.g., paste) seem to
        // fire selectionchange normally.
        return getInstIfValueChanged(activeElementInst);
      }
    }
    /**
     * SECTION: handle `click` event
     */
    
    
    function shouldUseClickEvent(elem) {
      // Use the `click` event to detect changes to checkbox and radio inputs.
      // This approach works across all browsers, whereas `change` does not fire
      // until `blur` in IE8.
      var nodeName = elem.nodeName;
      return nodeName && nodeName.toLowerCase() === 'input' && (elem.type === 'checkbox' || elem.type === 'radio');
    }
    
    function getTargetInstForClickEvent(topLevelType, targetInst) {
      if (topLevelType === TOP_CLICK) {
        return getInstIfValueChanged(targetInst);
      }
    }
    
    function getTargetInstForInputOrChangeEvent(topLevelType, targetInst) {
      if (topLevelType === TOP_INPUT || topLevelType === TOP_CHANGE) {
        return getInstIfValueChanged(targetInst);
      }
    }
    
    function handleControlledInputBlur(node) {
      var state = node._wrapperState;
    
      if (!state || !state.controlled || node.type !== 'number') {
        return;
      }
    
      if (!disableInputAttributeSyncing) {
        // If controlled, assign the value attribute to the current value on blur
        setDefaultValue(node, 'number', node.value);
      }
    }
    /**
     * This plugin creates an `onChange` event that normalizes change events
     * across form elements. This event fires at a time when it's possible to
     * change the element's value without seeing a flicker.
     *
     * Supported elements are:
     * - input (see `isTextInputElement`)
     * - textarea
     * - select
     */
    
    
    var ChangeEventPlugin = {
      eventTypes: eventTypes$2,
      _isInputEventSupported: isInputEventSupported,
      extractEvents: function (topLevelType, eventSystemFlags, targetInst, nativeEvent, nativeEventTarget) {
        var targetNode = targetInst ? getNodeFromInstance$1(targetInst) : window;
        var getTargetInstFunc, handleEventFunc;
    
        if (shouldUseChangeEvent(targetNode)) {
          getTargetInstFunc = getTargetInstForChangeEvent;
        } else if (isTextInputElement(targetNode)) {
          if (isInputEventSupported) {
            getTargetInstFunc = getTargetInstForInputOrChangeEvent;
          } else {
            getTargetInstFunc = getTargetInstForInputEventPolyfill;
            handleEventFunc = handleEventsForInputEventPolyfill;
          }
        } else if (shouldUseClickEvent(targetNode)) {
          getTargetInstFunc = getTargetInstForClickEvent;
        }
    
        if (getTargetInstFunc) {
          var inst = getTargetInstFunc(topLevelType, targetInst);
    
          if (inst) {
            var event = createAndAccumulateChangeEvent(inst, nativeEvent, nativeEventTarget);
            return event;
          }
        }
    
        if (handleEventFunc) {
          handleEventFunc(topLevelType, targetNode, targetInst);
        } // When blurring, set the value attribute for number inputs
    
    
        if (topLevelType === TOP_BLUR) {
          handleControlledInputBlur(targetNode);
        }
      }
    };
    
    /**
     * Module that is injectable into `EventPluginHub`, that specifies a
     * deterministic ordering of `EventPlugin`s. A convenient way to reason about
     * plugins, without having to package every one of them. This is better than
     * having plugins be ordered in the same order that they are injected because
     * that ordering would be influenced by the packaging order.
     * `ResponderEventPlugin` must occur before `SimpleEventPlugin` so that
     * preventing default on events is convenient in `SimpleEventPlugin` handlers.
     */
    var DOMEventPluginOrder = ['ResponderEventPlugin', 'SimpleEventPlugin', 'EnterLeaveEventPlugin', 'ChangeEventPlugin', 'SelectEventPlugin', 'BeforeInputEventPlugin'];
    
    var eventTypes$3 = {
      mouseEnter: {
        registrationName: 'onMouseEnter',
        dependencies: [TOP_MOUSE_OUT, TOP_MOUSE_OVER]
      },
      mouseLeave: {
        registrationName: 'onMouseLeave',
        dependencies: [TOP_MOUSE_OUT, TOP_MOUSE_OVER]
      },
      pointerEnter: {
        registrationName: 'onPointerEnter',
        dependencies: [TOP_POINTER_OUT, TOP_POINTER_OVER]
      },
      pointerLeave: {
        registrationName: 'onPointerLeave',
        dependencies: [TOP_POINTER_OUT, TOP_POINTER_OVER]
      }
    };
    var EnterLeaveEventPlugin = {
      eventTypes: eventTypes$3,
    
      /**
       * For almost every interaction we care about, there will be both a top-level
       * `mouseover` and `mouseout` event that occurs. Only use `mouseout` so that
       * we do not extract duplicate events. However, moving the mouse into the
       * browser from outside will not fire a `mouseout` event. In this case, we use
       * the `mouseover` top-level event.
       */
      extractEvents: function (topLevelType, eventSystemFlags, targetInst, nativeEvent, nativeEventTarget) {
        var isOverEvent = topLevelType === TOP_MOUSE_OVER || topLevelType === TOP_POINTER_OVER;
        var isOutEvent = topLevelType === TOP_MOUSE_OUT || topLevelType === TOP_POINTER_OUT;
    
        if (isOverEvent && (eventSystemFlags & IS_REPLAYED) === 0 && (nativeEvent.relatedTarget || nativeEvent.fromElement)) {
          // If this is an over event with a target, then we've already dispatched
          // the event in the out event of the other target. If this is replayed,
          // then it's because we couldn't dispatch against this target previously
          // so we have to do it now instead.
          return null;
        }
    
        if (!isOutEvent && !isOverEvent) {
          // Must not be a mouse or pointer in or out - ignoring.
          return null;
        }
    
        var win;
    
        if (nativeEventTarget.window === nativeEventTarget) {
          // `nativeEventTarget` is probably a window object.
          win = nativeEventTarget;
        } else {
          // TODO: Figure out why `ownerDocument` is sometimes undefined in IE8.
          var doc = nativeEventTarget.ownerDocument;
    
          if (doc) {
            win = doc.defaultView || doc.parentWindow;
          } else {
            win = window;
          }
        }
    
        var from;
        var to;
    
        if (isOutEvent) {
          from = targetInst;
          var related = nativeEvent.relatedTarget || nativeEvent.toElement;
          to = related ? getClosestInstanceFromNode(related) : null;
    
          if (to !== null) {
            var nearestMounted = getNearestMountedFiber(to);
    
            if (to !== nearestMounted || to.tag !== HostComponent && to.tag !== HostText) {
              to = null;
            }
          }
        } else {
          // Moving to a node from outside the window.
          from = null;
          to = targetInst;
        }
    
        if (from === to) {
          // Nothing pertains to our managed components.
          return null;
        }
    
        var eventInterface, leaveEventType, enterEventType, eventTypePrefix;
    
        if (topLevelType === TOP_MOUSE_OUT || topLevelType === TOP_MOUSE_OVER) {
          eventInterface = SyntheticMouseEvent;
          leaveEventType = eventTypes$3.mouseLeave;
          enterEventType = eventTypes$3.mouseEnter;
          eventTypePrefix = 'mouse';
        } else if (topLevelType === TOP_POINTER_OUT || topLevelType === TOP_POINTER_OVER) {
          eventInterface = SyntheticPointerEvent;
          leaveEventType = eventTypes$3.pointerLeave;
          enterEventType = eventTypes$3.pointerEnter;
          eventTypePrefix = 'pointer';
        }
    
        var fromNode = from == null ? win : getNodeFromInstance$1(from);
        var toNode = to == null ? win : getNodeFromInstance$1(to);
        var leave = eventInterface.getPooled(leaveEventType, from, nativeEvent, nativeEventTarget);
        leave.type = eventTypePrefix + 'leave';
        leave.target = fromNode;
        leave.relatedTarget = toNode;
        var enter = eventInterface.getPooled(enterEventType, to, nativeEvent, nativeEventTarget);
        enter.type = eventTypePrefix + 'enter';
        enter.target = toNode;
        enter.relatedTarget = fromNode;
        accumulateEnterLeaveDispatches(leave, enter, from, to);
        return [leave, enter];
      }
    };
    
    /**
     * inlined Object.is polyfill to avoid requiring consumers ship their own
     * https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is
     */
    function is(x, y) {
      return x === y && (x !== 0 || 1 / x === 1 / y) || x !== x && y !== y // eslint-disable-line no-self-compare
      ;
    }
    
    var is$1 = typeof Object.is === 'function' ? Object.is : is;
    
    var hasOwnProperty$2 = Object.prototype.hasOwnProperty;
    /**
     * Performs equality by iterating through keys on an object and returning false
     * when any key has values which are not strictly equal between the arguments.
     * Returns true when the values of all keys are strictly equal.
     */
    
    function shallowEqual(objA, objB) {
      if (is$1(objA, objB)) {
        return true;
      }
    
      if (typeof objA !== 'object' || objA === null || typeof objB !== 'object' || objB === null) {
        return false;
      }
    
      var keysA = Object.keys(objA);
      var keysB = Object.keys(objB);
    
      if (keysA.length !== keysB.length) {
        return false;
      } // Test for A's keys different from B.
    
    
      for (var i = 0; i < keysA.length; i++) {
        if (!hasOwnProperty$2.call(objB, keysA[i]) || !is$1(objA[keysA[i]], objB[keysA[i]])) {
          return false;
        }
      }
    
      return true;
    }
    
    var skipSelectionChangeEvent = canUseDOM && 'documentMode' in document && document.documentMode <= 11;
    var eventTypes$4 = {
      select: {
        phasedRegistrationNames: {
          bubbled: 'onSelect',
          captured: 'onSelectCapture'
        },
        dependencies: [TOP_BLUR, TOP_CONTEXT_MENU, TOP_DRAG_END, TOP_FOCUS, TOP_KEY_DOWN, TOP_KEY_UP, TOP_MOUSE_DOWN, TOP_MOUSE_UP, TOP_SELECTION_CHANGE]
      }
    };
    var activeElement$1 = null;
    var activeElementInst$1 = null;
    var lastSelection = null;
    var mouseDown = false;
    /**
     * Get an object which is a unique representation of the current selection.
     *
     * The return value will not be consistent across nodes or browsers, but
     * two identical selections on the same node will return identical objects.
     *
     * @param {DOMElement} node
     * @return {object}
     */
    
    function getSelection$1(node) {
      if ('selectionStart' in node && hasSelectionCapabilities(node)) {
        return {
          start: node.selectionStart,
          end: node.selectionEnd
        };
      } else {
        var win = node.ownerDocument && node.ownerDocument.defaultView || window;
        var selection = win.getSelection();
        return {
          anchorNode: selection.anchorNode,
          anchorOffset: selection.anchorOffset,
          focusNode: selection.focusNode,
          focusOffset: selection.focusOffset
        };
      }
    }
    /**
     * Get document associated with the event target.
     *
     * @param {object} nativeEventTarget
     * @return {Document}
     */
    
    
    function getEventTargetDocument(eventTarget) {
      return eventTarget.window === eventTarget ? eventTarget.document : eventTarget.nodeType === DOCUMENT_NODE ? eventTarget : eventTarget.ownerDocument;
    }
    /**
     * Poll selection to see whether it's changed.
     *
     * @param {object} nativeEvent
     * @param {object} nativeEventTarget
     * @return {?SyntheticEvent}
     */
    
    
    function constructSelectEvent(nativeEvent, nativeEventTarget) {
      // Ensure we have the right element, and that the user is not dragging a
      // selection (this matches native `select` event behavior). In HTML5, select
      // fires only on input and textarea thus if there's no focused element we
      // won't dispatch.
      var doc = getEventTargetDocument(nativeEventTarget);
    
      if (mouseDown || activeElement$1 == null || activeElement$1 !== getActiveElement(doc)) {
        return null;
      } // Only fire when selection has actually changed.
    
    
      var currentSelection = getSelection$1(activeElement$1);
    
      if (!lastSelection || !shallowEqual(lastSelection, currentSelection)) {
        lastSelection = currentSelection;
        var syntheticEvent = SyntheticEvent.getPooled(eventTypes$4.select, activeElementInst$1, nativeEvent, nativeEventTarget);
        syntheticEvent.type = 'select';
        syntheticEvent.target = activeElement$1;
        accumulateTwoPhaseDispatches(syntheticEvent);
        return syntheticEvent;
      }
    
      return null;
    }
    /**
     * This plugin creates an `onSelect` event that normalizes select events
     * across form elements.
     *
     * Supported elements are:
     * - input (see `isTextInputElement`)
     * - textarea
     * - contentEditable
     *
     * This differs from native browser implementations in the following ways:
     * - Fires on contentEditable fields as well as inputs.
     * - Fires for collapsed selection.
     * - Fires after user input.
     */
    
    
    var SelectEventPlugin = {
      eventTypes: eventTypes$4,
      extractEvents: function (topLevelType, eventSystemFlags, targetInst, nativeEvent, nativeEventTarget) {
        var doc = getEventTargetDocument(nativeEventTarget); // Track whether all listeners exists for this plugin. If none exist, we do
        // not extract events. See #3639.
    
        if (!doc || !isListeningToAllDependencies('onSelect', doc)) {
          return null;
        }
    
        var targetNode = targetInst ? getNodeFromInstance$1(targetInst) : window;
    
        switch (topLevelType) {
          // Track the input node that has focus.
          case TOP_FOCUS:
            if (isTextInputElement(targetNode) || targetNode.contentEditable === 'true') {
              activeElement$1 = targetNode;
              activeElementInst$1 = targetInst;
              lastSelection = null;
            }
    
            break;
    
          case TOP_BLUR:
            activeElement$1 = null;
            activeElementInst$1 = null;
            lastSelection = null;
            break;
          // Don't fire the event while the user is dragging. This matches the
          // semantics of the native select event.
    
          case TOP_MOUSE_DOWN:
            mouseDown = true;
            break;
    
          case TOP_CONTEXT_MENU:
          case TOP_MOUSE_UP:
          case TOP_DRAG_END:
            mouseDown = false;
            return constructSelectEvent(nativeEvent, nativeEventTarget);
          // Chrome and IE fire non-standard event when selection is changed (and
          // sometimes when it hasn't). IE's event fires out of order with respect
          // to key and input events on deletion, so we discard it.
          //
          // Firefox doesn't support selectionchange, so check selection status
          // after each key entry. The selection changes after keydown and before
          // keyup, but we check on keydown as well in the case of holding down a
          // key, when multiple keydown events are fired but only one keyup is.
          // This is also our approach for IE handling, for the reason above.
    
          case TOP_SELECTION_CHANGE:
            if (skipSelectionChangeEvent) {
              break;
            }
    
          // falls through
    
          case TOP_KEY_DOWN:
          case TOP_KEY_UP:
            return constructSelectEvent(nativeEvent, nativeEventTarget);
        }
    
        return null;
      }
    };
    
    /**
     * Inject modules for resolving DOM hierarchy and plugin ordering.
     */
    
    injection.injectEventPluginOrder(DOMEventPluginOrder);
    setComponentTree(getFiberCurrentPropsFromNode$1, getInstanceFromNode$1, getNodeFromInstance$1);
    /**
     * Some important event plugins included by default (without having to require
     * them).
     */
    
    injection.injectEventPluginsByName({
      SimpleEventPlugin: SimpleEventPlugin,
      EnterLeaveEventPlugin: EnterLeaveEventPlugin,
      ChangeEventPlugin: ChangeEventPlugin,
      SelectEventPlugin: SelectEventPlugin,
      BeforeInputEventPlugin: BeforeInputEventPlugin
    });
    
    // Prefix measurements so that it's possible to filter them.
    // Longer prefixes are hard to read in DevTools.
    var reactEmoji = "\u269B";
    var warningEmoji = "\u26D4";
    var supportsUserTiming = typeof performance !== 'undefined' && typeof performance.mark === 'function' && typeof performance.clearMarks === 'function' && typeof performance.measure === 'function' && typeof performance.clearMeasures === 'function'; // Keep track of current fiber so that we know the path to unwind on pause.
    // TODO: this looks the same as nextUnitOfWork in scheduler. Can we unify them?
    
    var currentFiber = null; // If we're in the middle of user code, which fiber and method is it?
    // Reusing `currentFiber` would be confusing for this because user code fiber
    // can change during commit phase too, but we don't need to unwind it (since
    // lifecycles in the commit phase don't resemble a tree).
    
    var currentPhase = null;
    var currentPhaseFiber = null; // Did lifecycle hook schedule an update? This is often a performance problem,
    // so we will keep track of it, and include it in the report.
    // Track commits caused by cascading updates.
    
    var isCommitting = false;
    var hasScheduledUpdateInCurrentCommit = false;
    var hasScheduledUpdateInCurrentPhase = false;
    var commitCountInCurrentWorkLoop = 0;
    var effectCountInCurrentCommit = 0;
    // to avoid stretch the commit phase with measurement overhead.
    
    var labelsInCurrentCommit = new Set();
    
    var formatMarkName = function (markName) {
      return reactEmoji + " " + markName;
    };
    
    var formatLabel = function (label, warning) {
      var prefix = warning ? warningEmoji + " " : reactEmoji + " ";
      var suffix = warning ? " Warning: " + warning : '';
      return "" + prefix + label + suffix;
    };
    
    var beginMark = function (markName) {
      performance.mark(formatMarkName(markName));
    };
    
    var clearMark = function (markName) {
      performance.clearMarks(formatMarkName(markName));
    };
    
    var endMark = function (label, markName, warning) {
      var formattedMarkName = formatMarkName(markName);
      var formattedLabel = formatLabel(label, warning);
    
      try {
        performance.measure(formattedLabel, formattedMarkName);
      } catch (err) {} // If previous mark was missing for some reason, this will throw.
      // This could only happen if React crashed in an unexpected place earlier.
      // Don't pile on with more errors.
      // Clear marks immediately to avoid growing buffer.
    
    
      performance.clearMarks(formattedMarkName);
      performance.clearMeasures(formattedLabel);
    };
    
    var getFiberMarkName = function (label, debugID) {
      return label + " (#" + debugID + ")";
    };
    
    var getFiberLabel = function (componentName, isMounted, phase) {
      if (phase === null) {
        // These are composite component total time measurements.
        return componentName + " [" + (isMounted ? 'update' : 'mount') + "]";
      } else {
        // Composite component methods.
        return componentName + "." + phase;
      }
    };
    
    var beginFiberMark = function (fiber, phase) {
      var componentName = getComponentName(fiber.type) || 'Unknown';
      var debugID = fiber._debugID;
      var isMounted = fiber.alternate !== null;
      var label = getFiberLabel(componentName, isMounted, phase);
    
      if (isCommitting && labelsInCurrentCommit.has(label)) {
        // During the commit phase, we don't show duplicate labels because
        // there is a fixed overhead for every measurement, and we don't
        // want to stretch the commit phase beyond necessary.
        return false;
      }
    
      labelsInCurrentCommit.add(label);
      var markName = getFiberMarkName(label, debugID);
      beginMark(markName);
      return true;
    };
    
    var clearFiberMark = function (fiber, phase) {
      var componentName = getComponentName(fiber.type) || 'Unknown';
      var debugID = fiber._debugID;
      var isMounted = fiber.alternate !== null;
      var label = getFiberLabel(componentName, isMounted, phase);
      var markName = getFiberMarkName(label, debugID);
      clearMark(markName);
    };
    
    var endFiberMark = function (fiber, phase, warning) {
      var componentName = getComponentName(fiber.type) || 'Unknown';
      var debugID = fiber._debugID;
      var isMounted = fiber.alternate !== null;
      var label = getFiberLabel(componentName, isMounted, phase);
      var markName = getFiberMarkName(label, debugID);
      endMark(label, markName, warning);
    };
    
    var shouldIgnoreFiber = function (fiber) {
      // Host components should be skipped in the timeline.
      // We could check typeof fiber.type, but does this work with RN?
      switch (fiber.tag) {
        case HostRoot:
        case HostComponent:
        case HostText:
        case HostPortal:
        case Fragment:
        case ContextProvider:
        case ContextConsumer:
        case Mode:
          return true;
    
        default:
          return false;
      }
    };
    
    var clearPendingPhaseMeasurement = function () {
      if (currentPhase !== null && currentPhaseFiber !== null) {
        clearFiberMark(currentPhaseFiber, currentPhase);
      }
    
      currentPhaseFiber = null;
      currentPhase = null;
      hasScheduledUpdateInCurrentPhase = false;
    };
    
    var pauseTimers = function () {
      // Stops all currently active measurements so that they can be resumed
      // if we continue in a later deferred loop from the same unit of work.
      var fiber = currentFiber;
    
      while (fiber) {
        if (fiber._debugIsCurrentlyTiming) {
          endFiberMark(fiber, null, null);
        }
    
        fiber = fiber.return;
      }
    };
    
    var resumeTimersRecursively = function (fiber) {
      if (fiber.return !== null) {
        resumeTimersRecursively(fiber.return);
      }
    
      if (fiber._debugIsCurrentlyTiming) {
        beginFiberMark(fiber, null);
      }
    };
    
    var resumeTimers = function () {
      // Resumes all measurements that were active during the last deferred loop.
      if (currentFiber !== null) {
        resumeTimersRecursively(currentFiber);
      }
    };
    
    function recordEffect() {
      if (enableUserTimingAPI) {
        effectCountInCurrentCommit++;
      }
    }
    function recordScheduleUpdate() {
      if (enableUserTimingAPI) {
        if (isCommitting) {
          hasScheduledUpdateInCurrentCommit = true;
        }
    
        if (currentPhase !== null && currentPhase !== 'componentWillMount' && currentPhase !== 'componentWillReceiveProps') {
          hasScheduledUpdateInCurrentPhase = true;
        }
      }
    }
    
    
    function startWorkTimer(fiber) {
      if (enableUserTimingAPI) {
        if (!supportsUserTiming || shouldIgnoreFiber(fiber)) {
          return;
        } // If we pause, this is the fiber to unwind from.
    
    
        currentFiber = fiber;
    
        if (!beginFiberMark(fiber, null)) {
          return;
        }
    
        fiber._debugIsCurrentlyTiming = true;
      }
    }
    function cancelWorkTimer(fiber) {
      if (enableUserTimingAPI) {
        if (!supportsUserTiming || shouldIgnoreFiber(fiber)) {
          return;
        } // Remember we shouldn't complete measurement for this fiber.
        // Otherwise flamechart will be deep even for small updates.
    
    
        fiber._debugIsCurrentlyTiming = false;
        clearFiberMark(fiber, null);
      }
    }
    function stopWorkTimer(fiber) {
      if (enableUserTimingAPI) {
        if (!supportsUserTiming || shouldIgnoreFiber(fiber)) {
          return;
        } // If we pause, its parent is the fiber to unwind from.
    
    
        currentFiber = fiber.return;
    
        if (!fiber._debugIsCurrentlyTiming) {
          return;
        }
    
        fiber._debugIsCurrentlyTiming = false;
        endFiberMark(fiber, null, null);
      }
    }
    function stopFailedWorkTimer(fiber) {
      if (enableUserTimingAPI) {
        if (!supportsUserTiming || shouldIgnoreFiber(fiber)) {
          return;
        } // If we pause, its parent is the fiber to unwind from.
    
    
        currentFiber = fiber.return;
    
        if (!fiber._debugIsCurrentlyTiming) {
          return;
        }
    
        fiber._debugIsCurrentlyTiming = false;
        var warning = fiber.tag === SuspenseComponent ? 'Rendering was suspended' : 'An error was thrown inside this error boundary';
        endFiberMark(fiber, null, warning);
      }
    }
    function startPhaseTimer(fiber, phase) {
      if (enableUserTimingAPI) {
        if (!supportsUserTiming) {
          return;
        }
    
        clearPendingPhaseMeasurement();
    
        if (!beginFiberMark(fiber, phase)) {
          return;
        }
    
        currentPhaseFiber = fiber;
        currentPhase = phase;
      }
    }
    function stopPhaseTimer() {
      if (enableUserTimingAPI) {
        if (!supportsUserTiming) {
          return;
        }
    
        if (currentPhase !== null && currentPhaseFiber !== null) {
          var warning = hasScheduledUpdateInCurrentPhase ? 'Scheduled a cascading update' : null;
          endFiberMark(currentPhaseFiber, currentPhase, warning);
        }
    
        currentPhase = null;
        currentPhaseFiber = null;
      }
    }
    function startWorkLoopTimer(nextUnitOfWork) {
      if (enableUserTimingAPI) {
        currentFiber = nextUnitOfWork;
    
        if (!supportsUserTiming) {
          return;
        }
    
        commitCountInCurrentWorkLoop = 0; // This is top level call.
        // Any other measurements are performed within.
    
        beginMark('(React Tree Reconciliation)'); // Resume any measurements that were in progress during the last loop.
    
        resumeTimers();
      }
    }
    function stopWorkLoopTimer(interruptedBy, didCompleteRoot) {
      if (enableUserTimingAPI) {
        if (!supportsUserTiming) {
          return;
        }
    
        var warning = null;
    
        if (interruptedBy !== null) {
          if (interruptedBy.tag === HostRoot) {
            warning = 'A top-level update interrupted the previous render';
          } else {
            var componentName = getComponentName(interruptedBy.type) || 'Unknown';
            warning = "An update to " + componentName + " interrupted the previous render";
          }
        } else if (commitCountInCurrentWorkLoop > 1) {
          warning = 'There were cascading updates';
        }
    
        commitCountInCurrentWorkLoop = 0;
        var label = didCompleteRoot ? '(React Tree Reconciliation: Completed Root)' : '(React Tree Reconciliation: Yielded)'; // Pause any measurements until the next loop.
    
        pauseTimers();
        endMark(label, '(React Tree Reconciliation)', warning);
      }
    }
    function startCommitTimer() {
      if (enableUserTimingAPI) {
        if (!supportsUserTiming) {
          return;
        }
    
        isCommitting = true;
        hasScheduledUpdateInCurrentCommit = false;
        labelsInCurrentCommit.clear();
        beginMark('(Committing Changes)');
      }
    }
    function stopCommitTimer() {
      if (enableUserTimingAPI) {
        if (!supportsUserTiming) {
          return;
        }
    
        var warning = null;
    
        if (hasScheduledUpdateInCurrentCommit) {
          warning = 'Lifecycle hook scheduled a cascading update';
        } else if (commitCountInCurrentWorkLoop > 0) {
          warning = 'Caused by a cascading update in earlier commit';
        }
    
        hasScheduledUpdateInCurrentCommit = false;
        commitCountInCurrentWorkLoop++;
        isCommitting = false;
        labelsInCurrentCommit.clear();
        endMark('(Committing Changes)', '(Committing Changes)', warning);
      }
    }
    function startCommitSnapshotEffectsTimer() {
      if (enableUserTimingAPI) {
        if (!supportsUserTiming) {
          return;
        }
    
        effectCountInCurrentCommit = 0;
        beginMark('(Committing Snapshot Effects)');
      }
    }
    function stopCommitSnapshotEffectsTimer() {
      if (enableUserTimingAPI) {
        if (!supportsUserTiming) {
          return;
        }
    
        var count = effectCountInCurrentCommit;
        effectCountInCurrentCommit = 0;
        endMark("(Committing Snapshot Effects: " + count + " Total)", '(Committing Snapshot Effects)', null);
      }
    }
    function startCommitHostEffectsTimer() {
      if (enableUserTimingAPI) {
        if (!supportsUserTiming) {
          return;
        }
    
        effectCountInCurrentCommit = 0;
        beginMark('(Committing Host Effects)');
      }
    }
    function stopCommitHostEffectsTimer() {
      if (enableUserTimingAPI) {
        if (!supportsUserTiming) {
          return;
        }
    
        var count = effectCountInCurrentCommit;
        effectCountInCurrentCommit = 0;
        endMark("(Committing Host Effects: " + count + " Total)", '(Committing Host Effects)', null);
      }
    }
    function startCommitLifeCyclesTimer() {
      if (enableUserTimingAPI) {
        if (!supportsUserTiming) {
          return;
        }
    
        effectCountInCurrentCommit = 0;
        beginMark('(Calling Lifecycle Methods)');
      }
    }
    function stopCommitLifeCyclesTimer() {
      if (enableUserTimingAPI) {
        if (!supportsUserTiming) {
          return;
        }
    
        var count = effectCountInCurrentCommit;
        effectCountInCurrentCommit = 0;
        endMark("(Calling Lifecycle Methods: " + count + " Total)", '(Calling Lifecycle Methods)', null);
      }
    }
    
    var valueStack = [];
    var fiberStack;
    
    {
      fiberStack = [];
    }
    
    var index = -1;
    
    function createCursor(defaultValue) {
      return {
        current: defaultValue
      };
    }
    
    function pop(cursor, fiber) {
      if (index < 0) {
        {
          warningWithoutStack$1(false, 'Unexpected pop.');
        }
    
        return;
      }
    
      {
        if (fiber !== fiberStack[index]) {
          warningWithoutStack$1(false, 'Unexpected Fiber popped.');
        }
      }
    
      cursor.current = valueStack[index];
      valueStack[index] = null;
    
      {
        fiberStack[index] = null;
      }
    
      index--;
    }
    
    function push(cursor, value, fiber) {
      index++;
      valueStack[index] = cursor.current;
    
      {
        fiberStack[index] = fiber;
      }
    
      cursor.current = value;
    }
    
    var warnedAboutMissingGetChildContext;
    
    {
      warnedAboutMissingGetChildContext = {};
    }
    
    var emptyContextObject = {};
    
    {
      Object.freeze(emptyContextObject);
    } // A cursor to the current merged context object on the stack.
    
    
    var contextStackCursor = createCursor(emptyContextObject); // A cursor to a boolean indicating whether the context has changed.
    
    var didPerformWorkStackCursor = createCursor(false); // Keep track of the previous context object that was on the stack.
    // We use this to get access to the parent context after we have already
    // pushed the next context provider, and now need to merge their contexts.
    
    var previousContext = emptyContextObject;
    
    function getUnmaskedContext(workInProgress, Component, didPushOwnContextIfProvider) {
      if (disableLegacyContext) {
        return emptyContextObject;
      } else {
        if (didPushOwnContextIfProvider && isContextProvider(Component)) {
          // If the fiber is a context provider itself, when we read its context
          // we may have already pushed its own child context on the stack. A context
          // provider should not "see" its own child context. Therefore we read the
          // previous (parent) context instead for a context provider.
          return previousContext;
        }
    
        return contextStackCursor.current;
      }
    }
    
    function cacheContext(workInProgress, unmaskedContext, maskedContext) {
      if (disableLegacyContext) {
        return;
      } else {
        var instance = workInProgress.stateNode;
        instance.__reactInternalMemoizedUnmaskedChildContext = unmaskedContext;
        instance.__reactInternalMemoizedMaskedChildContext = maskedContext;
      }
    }
    
    function getMaskedContext(workInProgress, unmaskedContext) {
      if (disableLegacyContext) {
        return emptyContextObject;
      } else {
        var type = workInProgress.type;
        var contextTypes = type.contextTypes;
    
        if (!contextTypes) {
          return emptyContextObject;
        } // Avoid recreating masked context unless unmasked context has changed.
        // Failing to do this will result in unnecessary calls to componentWillReceiveProps.
        // This may trigger infinite loops if componentWillReceiveProps calls setState.
    
    
        var instance = workInProgress.stateNode;
    
        if (instance && instance.__reactInternalMemoizedUnmaskedChildContext === unmaskedContext) {
          return instance.__reactInternalMemoizedMaskedChildContext;
        }
    
        var context = {};
    
        for (var key in contextTypes) {
          context[key] = unmaskedContext[key];
        }
    
        {
          var name = getComponentName(type) || 'Unknown';
          checkPropTypes(contextTypes, context, 'context', name, getCurrentFiberStackInDev);
        } // Cache unmasked context so we can avoid recreating masked context unless necessary.
        // Context is created before the class component is instantiated so check for instance.
    
    
        if (instance) {
          cacheContext(workInProgress, unmaskedContext, context);
        }
    
        return context;
      }
    }
    
    function hasContextChanged() {
      if (disableLegacyContext) {
        return false;
      } else {
        return didPerformWorkStackCursor.current;
      }
    }
    
    function isContextProvider(type) {
      if (disableLegacyContext) {
        return false;
      } else {
        var childContextTypes = type.childContextTypes;
        return childContextTypes !== null && childContextTypes !== undefined;
      }
    }
    
    function popContext(fiber) {
      if (disableLegacyContext) {
        return;
      } else {
        pop(didPerformWorkStackCursor, fiber);
        pop(contextStackCursor, fiber);
      }
    }
    
    function popTopLevelContextObject(fiber) {
      if (disableLegacyContext) {
        return;
      } else {
        pop(didPerformWorkStackCursor, fiber);
        pop(contextStackCursor, fiber);
      }
    }
    
    function pushTopLevelContextObject(fiber, context, didChange) {
      if (disableLegacyContext) {
        return;
      } else {
        (function () {
          if (!(contextStackCursor.current === emptyContextObject)) {
            {
              throw ReactError(Error("Unexpected context found on stack. This error is likely caused by a bug in React. Please file an issue."));
            }
          }
        })();
    
        push(contextStackCursor, context, fiber);
        push(didPerformWorkStackCursor, didChange, fiber);
      }
    }
    
    function processChildContext(fiber, type, parentContext) {
      if (disableLegacyContext) {
        return parentContext;
      } else {
        var instance = fiber.stateNode;
        var childContextTypes = type.childContextTypes; // TODO (bvaughn) Replace this behavior with an invariant() in the future.
        // It has only been added in Fiber to match the (unintentional) behavior in Stack.
    
        if (typeof instance.getChildContext !== 'function') {
          {
            var componentName = getComponentName(type) || 'Unknown';
    
            if (!warnedAboutMissingGetChildContext[componentName]) {
              warnedAboutMissingGetChildContext[componentName] = true;
              warningWithoutStack$1(false, '%s.childContextTypes is specified but there is no getChildContext() method ' + 'on the instance. You can either define getChildContext() on %s or remove ' + 'childContextTypes from it.', componentName, componentName);
            }
          }
    
          return parentContext;
        }
    
        var childContext;
    
        {
          setCurrentPhase('getChildContext');
        }
    
        startPhaseTimer(fiber, 'getChildContext');
        childContext = instance.getChildContext();
        stopPhaseTimer();
    
        {
          setCurrentPhase(null);
        }
    
        for (var contextKey in childContext) {
          (function () {
            if (!(contextKey in childContextTypes)) {
              {
                throw ReactError(Error((getComponentName(type) || 'Unknown') + ".getChildContext(): key \"" + contextKey + "\" is not defined in childContextTypes."));
              }
            }
          })();
        }
    
        {
          var name = getComponentName(type) || 'Unknown';
          checkPropTypes(childContextTypes, childContext, 'child context', name, // In practice, there is one case in which we won't get a stack. It's when
          // somebody calls unstable_renderSubtreeIntoContainer() and we process
          // context from the parent component instance. The stack will be missing
          // because it's outside of the reconciliation, and so the pointer has not
          // been set. This is rare and doesn't matter. We'll also remove that API.
          getCurrentFiberStackInDev);
        }
    
        return _assign({}, parentContext, {}, childContext);
      }
    }
    
    function pushContextProvider(workInProgress) {
      if (disableLegacyContext) {
        return false;
      } else {
        var instance = workInProgress.stateNode; // We push the context as early as possible to ensure stack integrity.
        // If the instance does not exist yet, we will push null at first,
        // and replace it on the stack later when invalidating the context.
    
        var memoizedMergedChildContext = instance && instance.__reactInternalMemoizedMergedChildContext || emptyContextObject; // Remember the parent context so we can merge with it later.
        // Inherit the parent's did-perform-work value to avoid inadvertently blocking updates.
    
        previousContext = contextStackCursor.current;
        push(contextStackCursor, memoizedMergedChildContext, workInProgress);
        push(didPerformWorkStackCursor, didPerformWorkStackCursor.current, workInProgress);
        return true;
      }
    }
    
    function invalidateContextProvider(workInProgress, type, didChange) {
      if (disableLegacyContext) {
        return;
      } else {
        var instance = workInProgress.stateNode;
    
        (function () {
          if (!instance) {
            {
              throw ReactError(Error("Expected to have an instance by this point. This error is likely caused by a bug in React. Please file an issue."));
            }
          }
        })();
    
        if (didChange) {
          // Merge parent and own context.
          // Skip this if we're not updating due to sCU.
          // This avoids unnecessarily recomputing memoized values.
          var mergedContext = processChildContext(workInProgress, type, previousContext);
          instance.__reactInternalMemoizedMergedChildContext = mergedContext; // Replace the old (or empty) context with the new one.
          // It is important to unwind the context in the reverse order.
    
          pop(didPerformWorkStackCursor, workInProgress);
          pop(contextStackCursor, workInProgress); // Now push the new context and mark that it has changed.
    
          push(contextStackCursor, mergedContext, workInProgress);
          push(didPerformWorkStackCursor, didChange, workInProgress);
        } else {
          pop(didPerformWorkStackCursor, workInProgress);
          push(didPerformWorkStackCursor, didChange, workInProgress);
        }
      }
    }
    
    function findCurrentUnmaskedContext(fiber) {
      if (disableLegacyContext) {
        return emptyContextObject;
      } else {
        // Currently this is only used with renderSubtreeIntoContainer; not sure if it
        // makes sense elsewhere
        (function () {
          if (!(isFiberMounted(fiber) && fiber.tag === ClassComponent)) {
            {
              throw ReactError(Error("Expected subtree parent to be a mounted class component. This error is likely caused by a bug in React. Please file an issue."));
            }
          }
        })();
    
        var node = fiber;
    
        do {
          switch (node.tag) {
            case HostRoot:
              return node.stateNode.context;
    
            case ClassComponent:
              {
                var Component = node.type;
    
                if (isContextProvider(Component)) {
                  return node.stateNode.__reactInternalMemoizedMergedChildContext;
                }
    
                break;
              }
          }
    
          node = node.return;
        } while (node !== null);
    
        (function () {
          {
            {
              throw ReactError(Error("Found unexpected detached subtree parent. This error is likely caused by a bug in React. Please file an issue."));
            }
          }
        })();
      }
    }
    
    var LegacyRoot = 0;
    var BatchedRoot = 1;
    var ConcurrentRoot = 2;
    
    // Intentionally not named imports because Rollup would use dynamic dispatch for
    // CommonJS interop named imports.
    var Scheduler_runWithPriority = Scheduler.unstable_runWithPriority;
    var Scheduler_scheduleCallback = Scheduler.unstable_scheduleCallback;
    var Scheduler_cancelCallback = Scheduler.unstable_cancelCallback;
    var Scheduler_shouldYield = Scheduler.unstable_shouldYield;
    var Scheduler_requestPaint = Scheduler.unstable_requestPaint;
    var Scheduler_now = Scheduler.unstable_now;
    var Scheduler_getCurrentPriorityLevel = Scheduler.unstable_getCurrentPriorityLevel;
    var Scheduler_ImmediatePriority = Scheduler.unstable_ImmediatePriority;
    var Scheduler_UserBlockingPriority = Scheduler.unstable_UserBlockingPriority;
    var Scheduler_NormalPriority = Scheduler.unstable_NormalPriority;
    var Scheduler_LowPriority = Scheduler.unstable_LowPriority;
    var Scheduler_IdlePriority = Scheduler.unstable_IdlePriority;
    
    if (enableSchedulerTracing) {
      // Provide explicit error message when production+profiling bundle of e.g.
      // react-dom is used with production (non-profiling) bundle of
      // scheduler/tracing
      (function () {
        if (!(tracing.__interactionsRef != null && tracing.__interactionsRef.current != null)) {
          {
            throw ReactError(Error("It is not supported to run the profiling version of a renderer (for example, `react-dom/profiling`) without also replacing the `scheduler/tracing` module with `scheduler/tracing-profiling`. Your bundler might have a setting for aliasing both modules. Learn more at http://fb.me/react-profiling"));
          }
        }
      })();
    }
    
    var fakeCallbackNode = {}; // Except for NoPriority, these correspond to Scheduler priorities. We use
    // ascending numbers so we can compare them like numbers. They start at 90 to
    // avoid clashing with Scheduler's priorities.
    
    var ImmediatePriority = 99;
    var UserBlockingPriority$2 = 98;
    var NormalPriority = 97;
    var LowPriority = 96;
    var IdlePriority = 95; // NoPriority is the absence of priority. Also React-only.
    
    var NoPriority = 90;
    var shouldYield = Scheduler_shouldYield;
    var requestPaint = // Fall back gracefully if we're running an older version of Scheduler.
    Scheduler_requestPaint !== undefined ? Scheduler_requestPaint : function () {};
    var syncQueue = null;
    var immediateQueueCallbackNode = null;
    var isFlushingSyncQueue = false;
    var initialTimeMs = Scheduler_now(); // If the initial timestamp is reasonably small, use Scheduler's `now` directly.
    // This will be the case for modern browsers that support `performance.now`. In
    // older browsers, Scheduler falls back to `Date.now`, which returns a Unix
    // timestamp. In that case, subtract the module initialization time to simulate
    // the behavior of performance.now and keep our times small enough to fit
    // within 32 bits.
    // TODO: Consider lifting this into Scheduler.
    
    var now = initialTimeMs < 10000 ? Scheduler_now : function () {
      return Scheduler_now() - initialTimeMs;
    };
    function getCurrentPriorityLevel() {
      switch (Scheduler_getCurrentPriorityLevel()) {
        case Scheduler_ImmediatePriority:
          return ImmediatePriority;
    
        case Scheduler_UserBlockingPriority:
          return UserBlockingPriority$2;
    
        case Scheduler_NormalPriority:
          return NormalPriority;
    
        case Scheduler_LowPriority:
          return LowPriority;
    
        case Scheduler_IdlePriority:
          return IdlePriority;
    
        default:
          (function () {
            {
              {
                throw ReactError(Error("Unknown priority level."));
              }
            }
          })();
    
      }
    }
    
    function reactPriorityToSchedulerPriority(reactPriorityLevel) {
      switch (reactPriorityLevel) {
        case ImmediatePriority:
          return Scheduler_ImmediatePriority;
    
        case UserBlockingPriority$2:
          return Scheduler_UserBlockingPriority;
    
        case NormalPriority:
          return Scheduler_NormalPriority;
    
        case LowPriority:
          return Scheduler_LowPriority;
    
        case IdlePriority:
          return Scheduler_IdlePriority;
    
        default:
          (function () {
            {
              {
                throw ReactError(Error("Unknown priority level."));
              }
            }
          })();
    
      }
    }
    
    function runWithPriority$2(reactPriorityLevel, fn) {
      var priorityLevel = reactPriorityToSchedulerPriority(reactPriorityLevel);
      return Scheduler_runWithPriority(priorityLevel, fn);
    }
    function scheduleCallback(reactPriorityLevel, callback, options) {
      var priorityLevel = reactPriorityToSchedulerPriority(reactPriorityLevel);
      return Scheduler_scheduleCallback(priorityLevel, callback, options);
    }
    function scheduleSyncCallback(callback) {
      // Push this callback into an internal queue. We'll flush these either in
      // the next tick, or earlier if something calls `flushSyncCallbackQueue`.
      if (syncQueue === null) {
        syncQueue = [callback]; // Flush the queue in the next tick, at the earliest.
    
        immediateQueueCallbackNode = Scheduler_scheduleCallback(Scheduler_ImmediatePriority, flushSyncCallbackQueueImpl);
      } else {
        // Push onto existing queue. Don't need to schedule a callback because
        // we already scheduled one when we created the queue.
        syncQueue.push(callback);
      }
    
      return fakeCallbackNode;
    }
    function cancelCallback(callbackNode) {
      if (callbackNode !== fakeCallbackNode) {
        Scheduler_cancelCallback(callbackNode);
      }
    }
    function flushSyncCallbackQueue() {
      if (immediateQueueCallbackNode !== null) {
        var node = immediateQueueCallbackNode;
        immediateQueueCallbackNode = null;
        Scheduler_cancelCallback(node);
      }
    
      flushSyncCallbackQueueImpl();
    }
    
    function flushSyncCallbackQueueImpl() {
      if (!isFlushingSyncQueue && syncQueue !== null) {
        // Prevent re-entrancy.
        isFlushingSyncQueue = true;
        var i = 0;
    
        try {
          var _isSync = true;
          var queue = syncQueue;
          runWithPriority$2(ImmediatePriority, function () {
            for (; i < queue.length; i++) {
              var callback = queue[i];
    
              do {
                callback = callback(_isSync);
              } while (callback !== null);
            }
          });
          syncQueue = null;
        } catch (error) {
          // If something throws, leave the remaining callbacks on the queue.
          if (syncQueue !== null) {
            syncQueue = syncQueue.slice(i + 1);
          } // Resume flushing in the next tick
    
    
          Scheduler_scheduleCallback(Scheduler_ImmediatePriority, flushSyncCallbackQueue);
          throw error;
        } finally {
          isFlushingSyncQueue = false;
        }
      }
    }
    
    var NoMode = 0;
    var StrictMode = 1; // TODO: Remove BatchedMode and ConcurrentMode by reading from the root
    // tag instead
    
    var BatchedMode = 2;
    var ConcurrentMode = 4;
    var ProfileMode = 8;
    
    // Max 31 bit integer. The max integer size in V8 for 32-bit systems.
    // Math.pow(2, 30) - 1
    // 0b111111111111111111111111111111
    var MAX_SIGNED_31_BIT_INT = 1073741823;
    
    var NoWork = 0; // TODO: Think of a better name for Never. The key difference with Idle is that
    // Never work can be committed in an inconsistent state without tearing the UI.
    // The main example is offscreen content, like a hidden subtree. So one possible
    // name is Offscreen. However, it also includes dehydrated Suspense boundaries,
    // which are inconsistent in the sense that they haven't finished yet, but
    // aren't visibly inconsistent because the server rendered HTML matches what the
    // hydrated tree would look like.
    
    var Never = 1; // Idle is slightly higher priority than Never. It must completely finish in
    // order to be consistent.
    
    var Idle = 2;
    var Sync = MAX_SIGNED_31_BIT_INT;
    var Batched = Sync - 1;
    var UNIT_SIZE = 10;
    var MAGIC_NUMBER_OFFSET = Batched - 1; // 1 unit of expiration time represents 10ms.
    
    function msToExpirationTime(ms) {
      // Always add an offset so that we don't clash with the magic number for NoWork.
      return MAGIC_NUMBER_OFFSET - (ms / UNIT_SIZE | 0);
    }
    function expirationTimeToMs(expirationTime) {
      return (MAGIC_NUMBER_OFFSET - expirationTime) * UNIT_SIZE;
    }
    
    function ceiling(num, precision) {
      return ((num / precision | 0) + 1) * precision;
    }
    
    function computeExpirationBucket(currentTime, expirationInMs, bucketSizeMs) {
      return MAGIC_NUMBER_OFFSET - ceiling(MAGIC_NUMBER_OFFSET - currentTime + expirationInMs / UNIT_SIZE, bucketSizeMs / UNIT_SIZE);
    } // TODO: This corresponds to Scheduler's NormalPriority, not LowPriority. Update
    // the names to reflect.
    
    
    var LOW_PRIORITY_EXPIRATION = 5000;
    var LOW_PRIORITY_BATCH_SIZE = 250;
    function computeAsyncExpiration(currentTime) {
      return computeExpirationBucket(currentTime, LOW_PRIORITY_EXPIRATION, LOW_PRIORITY_BATCH_SIZE);
    }
    function computeSuspenseExpiration(currentTime, timeoutMs) {
      // TODO: Should we warn if timeoutMs is lower than the normal pri expiration time?
      return computeExpirationBucket(currentTime, timeoutMs, LOW_PRIORITY_BATCH_SIZE);
    } // We intentionally set a higher expiration time for interactive updates in
    // dev than in production.
    //
    // If the main thread is being blocked so long that you hit the expiration,
    // it's a problem that could be solved with better scheduling.
    //
    // People will be more likely to notice this and fix it with the long
    // expiration time in development.
    //
    // In production we opt for better UX at the risk of masking scheduling
    // problems, by expiring fast.
    
    var HIGH_PRIORITY_EXPIRATION = 500;
    var HIGH_PRIORITY_BATCH_SIZE = 100;
    function computeInteractiveExpiration(currentTime) {
      return computeExpirationBucket(currentTime, HIGH_PRIORITY_EXPIRATION, HIGH_PRIORITY_BATCH_SIZE);
    }
    function inferPriorityFromExpirationTime(currentTime, expirationTime) {
      if (expirationTime === Sync) {
        return ImmediatePriority;
      }
    
      if (expirationTime === Never || expirationTime === Idle) {
        return IdlePriority;
      }
    
      var msUntil = expirationTimeToMs(expirationTime) - expirationTimeToMs(currentTime);
    
      if (msUntil <= 0) {
        return ImmediatePriority;
      }
    
      if (msUntil <= HIGH_PRIORITY_EXPIRATION + HIGH_PRIORITY_BATCH_SIZE) {
        return UserBlockingPriority$2;
      }
    
      if (msUntil <= LOW_PRIORITY_EXPIRATION + LOW_PRIORITY_BATCH_SIZE) {
        return NormalPriority;
      } // TODO: Handle LowPriority
      // Assume anything lower has idle priority
    
    
      return IdlePriority;
    }
    
    /**
     * Forked from fbjs/warning:
     * https://github.com/facebook/fbjs/blob/e66ba20ad5be433eb54423f2b097d829324d9de6/packages/fbjs/src/__forks__/warning.js
     *
     * Only change is we use console.warn instead of console.error,
     * and do nothing when 'console' is not supported.
     * This really simplifies the code.
     * ---
     * Similar to invariant but only logs a warning if the condition is not met.
     * This can be used to log issues in development environments in critical
     * paths. Removing the logging code for production environments will keep the
     * same logic and follow the same code paths.
     */
    var lowPriorityWarningWithoutStack = function () {};
    
    {
      var printWarning = function (format) {
        for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
          args[_key - 1] = arguments[_key];
        }
    
        var argIndex = 0;
        var message = 'Warning: ' + format.replace(/%s/g, function () {
          return args[argIndex++];
        });
    
        if (typeof console !== 'undefined') {
          console.warn(message);
        }
    
        try {
          // --- Welcome to debugging React ---
          // This error was thrown as a convenience so that you can use this stack
          // to find the callsite that caused this warning to fire.
          throw new Error(message);
        } catch (x) {}
      };
    
      lowPriorityWarningWithoutStack = function (condition, format) {
        if (format === undefined) {
          throw new Error('`lowPriorityWarningWithoutStack(condition, format, ...args)` requires a warning ' + 'message argument');
        }
    
        if (!condition) {
          for (var _len2 = arguments.length, args = new Array(_len2 > 2 ? _len2 - 2 : 0), _key2 = 2; _key2 < _len2; _key2++) {
            args[_key2 - 2] = arguments[_key2];
          }
    
          printWarning.apply(void 0, [format].concat(args));
        }
      };
    }
    
    var lowPriorityWarningWithoutStack$1 = lowPriorityWarningWithoutStack;
    
    var ReactStrictModeWarnings = {
      recordUnsafeLifecycleWarnings: function (fiber, instance) {},
      flushPendingUnsafeLifecycleWarnings: function () {},
      recordLegacyContextWarning: function (fiber, instance) {},
      flushLegacyContextWarning: function () {},
      discardPendingWarnings: function () {}
    };
    
    {
      var findStrictRoot = function (fiber) {
        var maybeStrictRoot = null;
        var node = fiber;
    
        while (node !== null) {
          if (node.mode & StrictMode) {
            maybeStrictRoot = node;
          }
    
          node = node.return;
        }
    
        return maybeStrictRoot;
      };
    
      var setToSortedString = function (set) {
        var array = [];
        set.forEach(function (value) {
          array.push(value);
        });
        return array.sort().join(', ');
      };
    
      var pendingComponentWillMountWarnings = [];
      var pendingUNSAFE_ComponentWillMountWarnings = [];
      var pendingComponentWillReceivePropsWarnings = [];
      var pendingUNSAFE_ComponentWillReceivePropsWarnings = [];
      var pendingComponentWillUpdateWarnings = [];
      var pendingUNSAFE_ComponentWillUpdateWarnings = []; // Tracks components we have already warned about.
    
      var didWarnAboutUnsafeLifecycles = new Set();
    
      ReactStrictModeWarnings.recordUnsafeLifecycleWarnings = function (fiber, instance) {
        // Dedup strategy: Warn once per component.
        if (didWarnAboutUnsafeLifecycles.has(fiber.type)) {
          return;
        }
    
        if (typeof instance.componentWillMount === 'function' && // Don't warn about react-lifecycles-compat polyfilled components.
        instance.componentWillMount.__suppressDeprecationWarning !== true) {
          pendingComponentWillMountWarnings.push(fiber);
        }
    
        if (fiber.mode & StrictMode && typeof instance.UNSAFE_componentWillMount === 'function') {
          pendingUNSAFE_ComponentWillMountWarnings.push(fiber);
        }
    
        if (typeof instance.componentWillReceiveProps === 'function' && instance.componentWillReceiveProps.__suppressDeprecationWarning !== true) {
          pendingComponentWillReceivePropsWarnings.push(fiber);
        }
    
        if (fiber.mode & StrictMode && typeof instance.UNSAFE_componentWillReceiveProps === 'function') {
          pendingUNSAFE_ComponentWillReceivePropsWarnings.push(fiber);
        }
    
        if (typeof instance.componentWillUpdate === 'function' && instance.componentWillUpdate.__suppressDeprecationWarning !== true) {
          pendingComponentWillUpdateWarnings.push(fiber);
        }
    
        if (fiber.mode & StrictMode && typeof instance.UNSAFE_componentWillUpdate === 'function') {
          pendingUNSAFE_ComponentWillUpdateWarnings.push(fiber);
        }
      };
    
      ReactStrictModeWarnings.flushPendingUnsafeLifecycleWarnings = function () {
        // We do an initial pass to gather component names
        var componentWillMountUniqueNames = new Set();
    
        if (pendingComponentWillMountWarnings.length > 0) {
          pendingComponentWillMountWarnings.forEach(function (fiber) {
            componentWillMountUniqueNames.add(getComponentName(fiber.type) || 'Component');
            didWarnAboutUnsafeLifecycles.add(fiber.type);
          });
          pendingComponentWillMountWarnings = [];
        }
    
        var UNSAFE_componentWillMountUniqueNames = new Set();
    
        if (pendingUNSAFE_ComponentWillMountWarnings.length > 0) {
          pendingUNSAFE_ComponentWillMountWarnings.forEach(function (fiber) {
            UNSAFE_componentWillMountUniqueNames.add(getComponentName(fiber.type) || 'Component');
            didWarnAboutUnsafeLifecycles.add(fiber.type);
          });
          pendingUNSAFE_ComponentWillMountWarnings = [];
        }
    
        var componentWillReceivePropsUniqueNames = new Set();
    
        if (pendingComponentWillReceivePropsWarnings.length > 0) {
          pendingComponentWillReceivePropsWarnings.forEach(function (fiber) {
            componentWillReceivePropsUniqueNames.add(getComponentName(fiber.type) || 'Component');
            didWarnAboutUnsafeLifecycles.add(fiber.type);
          });
          pendingComponentWillReceivePropsWarnings = [];
        }
    
        var UNSAFE_componentWillReceivePropsUniqueNames = new Set();
    
        if (pendingUNSAFE_ComponentWillReceivePropsWarnings.length > 0) {
          pendingUNSAFE_ComponentWillReceivePropsWarnings.forEach(function (fiber) {
            UNSAFE_componentWillReceivePropsUniqueNames.add(getComponentName(fiber.type) || 'Component');
            didWarnAboutUnsafeLifecycles.add(fiber.type);
          });
          pendingUNSAFE_ComponentWillReceivePropsWarnings = [];
        }
    
        var componentWillUpdateUniqueNames = new Set();
    
        if (pendingComponentWillUpdateWarnings.length > 0) {
          pendingComponentWillUpdateWarnings.forEach(function (fiber) {
            componentWillUpdateUniqueNames.add(getComponentName(fiber.type) || 'Component');
            didWarnAboutUnsafeLifecycles.add(fiber.type);
          });
          pendingComponentWillUpdateWarnings = [];
        }
    
        var UNSAFE_componentWillUpdateUniqueNames = new Set();
    
        if (pendingUNSAFE_ComponentWillUpdateWarnings.length > 0) {
          pendingUNSAFE_ComponentWillUpdateWarnings.forEach(function (fiber) {
            UNSAFE_componentWillUpdateUniqueNames.add(getComponentName(fiber.type) || 'Component');
            didWarnAboutUnsafeLifecycles.add(fiber.type);
          });
          pendingUNSAFE_ComponentWillUpdateWarnings = [];
        } // Finally, we flush all the warnings
        // UNSAFE_ ones before the deprecated ones, since they'll be 'louder'
    
    
        if (UNSAFE_componentWillMountUniqueNames.size > 0) {
          var sortedNames = setToSortedString(UNSAFE_componentWillMountUniqueNames);
          warningWithoutStack$1(false, 'Using UNSAFE_componentWillMount in strict mode is not recommended and may indicate bugs in your code. ' + 'See https://fb.me/react-unsafe-component-lifecycles for details.\n\n' + '* Move code with side effects to componentDidMount, and set initial state in the constructor.\n' + '\nPlease update the following components: %s', sortedNames);
        }
    
        if (UNSAFE_componentWillReceivePropsUniqueNames.size > 0) {
          var _sortedNames = setToSortedString(UNSAFE_componentWillReceivePropsUniqueNames);
    
          warningWithoutStack$1(false, 'Using UNSAFE_componentWillReceiveProps in strict mode is not recommended ' + 'and may indicate bugs in your code. ' + 'See https://fb.me/react-unsafe-component-lifecycles for details.\n\n' + '* Move data fetching code or side effects to componentDidUpdate.\n' + "* If you're updating state whenever props change, " + 'refactor your code to use memoization techniques or move it to ' + 'static getDerivedStateFromProps. Learn more at: https://fb.me/react-derived-state\n' + '\nPlease update the following components: %s', _sortedNames);
        }
    
        if (UNSAFE_componentWillUpdateUniqueNames.size > 0) {
          var _sortedNames2 = setToSortedString(UNSAFE_componentWillUpdateUniqueNames);
    
          warningWithoutStack$1(false, 'Using UNSAFE_componentWillUpdate in strict mode is not recommended ' + 'and may indicate bugs in your code. ' + 'See https://fb.me/react-unsafe-component-lifecycles for details.\n\n' + '* Move data fetching code or side effects to componentDidUpdate.\n' + '\nPlease update the following components: %s', _sortedNames2);
        }
    
        if (componentWillMountUniqueNames.size > 0) {
          var _sortedNames3 = setToSortedString(componentWillMountUniqueNames);
    
          lowPriorityWarningWithoutStack$1(false, 'componentWillMount has been renamed, and is not recommended for use. ' + 'See https://fb.me/react-unsafe-component-lifecycles for details.\n\n' + '* Move code with side effects to componentDidMount, and set initial state in the constructor.\n' + '* Rename componentWillMount to UNSAFE_componentWillMount to suppress ' + 'this warning in non-strict mode. In React 17.x, only the UNSAFE_ name will work. ' + 'To rename all deprecated lifecycles to their new names, you can run ' + '`npx react-codemod rename-unsafe-lifecycles` in your project source folder.\n' + '\nPlease update the following components: %s', _sortedNames3);
        }
    
        if (componentWillReceivePropsUniqueNames.size > 0) {
          var _sortedNames4 = setToSortedString(componentWillReceivePropsUniqueNames);
    
          lowPriorityWarningWithoutStack$1(false, 'componentWillReceiveProps has been renamed, and is not recommended for use. ' + 'See https://fb.me/react-unsafe-component-lifecycles for details.\n\n' + '* Move data fetching code or side effects to componentDidUpdate.\n' + "* If you're updating state whenever props change, refactor your " + 'code to use memoization techniques or move it to ' + 'static getDerivedStateFromProps. Learn more at: https://fb.me/react-derived-state\n' + '* Rename componentWillReceiveProps to UNSAFE_componentWillReceiveProps to suppress ' + 'this warning in non-strict mode. In React 17.x, only the UNSAFE_ name will work. ' + 'To rename all deprecated lifecycles to their new names, you can run ' + '`npx react-codemod rename-unsafe-lifecycles` in your project source folder.\n' + '\nPlease update the following components: %s', _sortedNames4);
        }
    
        if (componentWillUpdateUniqueNames.size > 0) {
          var _sortedNames5 = setToSortedString(componentWillUpdateUniqueNames);
    
          lowPriorityWarningWithoutStack$1(false, 'componentWillUpdate has been renamed, and is not recommended for use. ' + 'See https://fb.me/react-unsafe-component-lifecycles for details.\n\n' + '* Move data fetching code or side effects to componentDidUpdate.\n' + '* Rename componentWillUpdate to UNSAFE_componentWillUpdate to suppress ' + 'this warning in non-strict mode. In React 17.x, only the UNSAFE_ name will work. ' + 'To rename all deprecated lifecycles to their new names, you can run ' + '`npx react-codemod rename-unsafe-lifecycles` in your project source folder.\n' + '\nPlease update the following components: %s', _sortedNames5);
        }
      };
    
      var pendingLegacyContextWarning = new Map(); // Tracks components we have already warned about.
    
      var didWarnAboutLegacyContext = new Set();
    
      ReactStrictModeWarnings.recordLegacyContextWarning = function (fiber, instance) {
        var strictRoot = findStrictRoot(fiber);
    
        if (strictRoot === null) {
          warningWithoutStack$1(false, 'Expected to find a StrictMode component in a strict mode tree. ' + 'This error is likely caused by a bug in React. Please file an issue.');
          return;
        } // Dedup strategy: Warn once per component.
    
    
        if (didWarnAboutLegacyContext.has(fiber.type)) {
          return;
        }
    
        var warningsForRoot = pendingLegacyContextWarning.get(strictRoot);
    
        if (fiber.type.contextTypes != null || fiber.type.childContextTypes != null || instance !== null && typeof instance.getChildContext === 'function') {
          if (warningsForRoot === undefined) {
            warningsForRoot = [];
            pendingLegacyContextWarning.set(strictRoot, warningsForRoot);
          }
    
          warningsForRoot.push(fiber);
        }
      };
    
      ReactStrictModeWarnings.flushLegacyContextWarning = function () {
        pendingLegacyContextWarning.forEach(function (fiberArray, strictRoot) {
          var uniqueNames = new Set();
          fiberArray.forEach(function (fiber) {
            uniqueNames.add(getComponentName(fiber.type) || 'Component');
            didWarnAboutLegacyContext.add(fiber.type);
          });
          var sortedNames = setToSortedString(uniqueNames);
          var strictRootComponentStack = getStackByFiberInDevAndProd(strictRoot);
          warningWithoutStack$1(false, 'Legacy context API has been detected within a strict-mode tree.' + '\n\nThe old API will be supported in all 16.x releases, but applications ' + 'using it should migrate to the new version.' + '\n\nPlease update the following components: %s' + '\n\nLearn more about this warning here: https://fb.me/react-legacy-context' + '%s', sortedNames, strictRootComponentStack);
        });
      };
    
      ReactStrictModeWarnings.discardPendingWarnings = function () {
        pendingComponentWillMountWarnings = [];
        pendingUNSAFE_ComponentWillMountWarnings = [];
        pendingComponentWillReceivePropsWarnings = [];
        pendingUNSAFE_ComponentWillReceivePropsWarnings = [];
        pendingComponentWillUpdateWarnings = [];
        pendingUNSAFE_ComponentWillUpdateWarnings = [];
        pendingLegacyContextWarning = new Map();
      };
    }
    
    var resolveFamily = null; // $FlowFixMe Flow gets confused by a WeakSet feature check below.
    
    var failedBoundaries = null;
    var setRefreshHandler = function (handler) {
      {
        resolveFamily = handler;
      }
    };
    function resolveFunctionForHotReloading(type) {
      {
        if (resolveFamily === null) {
          // Hot reloading is disabled.
          return type;
        }
    
        var family = resolveFamily(type);
    
        if (family === undefined) {
          return type;
        } // Use the latest known implementation.
    
    
        return family.current;
      }
    }
    function resolveClassForHotReloading(type) {
      // No implementation differences.
      return resolveFunctionForHotReloading(type);
    }
    function resolveForwardRefForHotReloading(type) {
      {
        if (resolveFamily === null) {
          // Hot reloading is disabled.
          return type;
        }
    
        var family = resolveFamily(type);
    
        if (family === undefined) {
          // Check if we're dealing with a real forwardRef. Don't want to crash early.
          if (type !== null && type !== undefined && typeof type.render === 'function') {
            // ForwardRef is special because its resolved .type is an object,
            // but it's possible that we only have its inner render function in the map.
            // If that inner render function is different, we'll build a new forwardRef type.
            var currentRender = resolveFunctionForHotReloading(type.render);
    
            if (type.render !== currentRender) {
              var syntheticType = {
                $$typeof: REACT_FORWARD_REF_TYPE,
                render: currentRender
              };
    
              if (type.displayName !== undefined) {
                syntheticType.displayName = type.displayName;
              }
    
              return syntheticType;
            }
          }
    
          return type;
        } // Use the latest known implementation.
    
    
        return family.current;
      }
    }
    function isCompatibleFamilyForHotReloading(fiber, element) {
      {
        if (resolveFamily === null) {
          // Hot reloading is disabled.
          return false;
        }
    
        var prevType = fiber.elementType;
        var nextType = element.type; // If we got here, we know types aren't === equal.
    
        var needsCompareFamilies = false;
        var $$typeofNextType = typeof nextType === 'object' && nextType !== null ? nextType.$$typeof : null;
    
        switch (fiber.tag) {
          case ClassComponent:
            {
              if (typeof nextType === 'function') {
                needsCompareFamilies = true;
              }
    
              break;
            }
    
          case FunctionComponent:
            {
              if (typeof nextType === 'function') {
                needsCompareFamilies = true;
              } else if ($$typeofNextType === REACT_LAZY_TYPE) {
                // We don't know the inner type yet.
                // We're going to assume that the lazy inner type is stable,
                // and so it is sufficient to avoid reconciling it away.
                // We're not going to unwrap or actually use the new lazy type.
                needsCompareFamilies = true;
              }
    
              break;
            }
    
          case ForwardRef:
            {
              if ($$typeofNextType === REACT_FORWARD_REF_TYPE) {
                needsCompareFamilies = true;
              } else if ($$typeofNextType === REACT_LAZY_TYPE) {
                needsCompareFamilies = true;
              }
    
              break;
            }
    
          case MemoComponent:
          case SimpleMemoComponent:
            {
              if ($$typeofNextType === REACT_MEMO_TYPE) {
                // TODO: if it was but can no longer be simple,
                // we shouldn't set this.
                needsCompareFamilies = true;
              } else if ($$typeofNextType === REACT_LAZY_TYPE) {
                needsCompareFamilies = true;
              }
    
              break;
            }
    
          default:
            return false;
        } // Check if both types have a family and it's the same one.
    
    
        if (needsCompareFamilies) {
          // Note: memo() and forwardRef() we'll compare outer rather than inner type.
          // This means both of them need to be registered to preserve state.
          // If we unwrapped and compared the inner types for wrappers instead,
          // then we would risk falsely saying two separate memo(Foo)
          // calls are equivalent because they wrap the same Foo function.
          var prevFamily = resolveFamily(prevType);
    
          if (prevFamily !== undefined && prevFamily === resolveFamily(nextType)) {
            return true;
          }
        }
    
        return false;
      }
    }
    function markFailedErrorBoundaryForHotReloading(fiber) {
      {
        if (resolveFamily === null) {
          // Hot reloading is disabled.
          return;
        }
    
        if (typeof WeakSet !== 'function') {
          return;
        }
    
        if (failedBoundaries === null) {
          failedBoundaries = new WeakSet();
        }
    
        failedBoundaries.add(fiber);
      }
    }
    var scheduleRefresh = function (root, update) {
      {
        if (resolveFamily === null) {
          // Hot reloading is disabled.
          return;
        }
    
        var staleFamilies = update.staleFamilies,
            updatedFamilies = update.updatedFamilies;
        flushPassiveEffects();
        flushSync(function () {
          scheduleFibersWithFamiliesRecursively(root.current, updatedFamilies, staleFamilies);
        });
      }
    };
    var scheduleRoot = function (root, element) {
      {
        if (root.context !== emptyContextObject) {
          // Super edge case: root has a legacy _renderSubtree context
          // but we don't know the parentComponent so we can't pass it.
          // Just ignore. We'll delete this with _renderSubtree code path later.
          return;
        }
    
        flushPassiveEffects();
        updateContainerAtExpirationTime(element, root, null, Sync, null);
      }
    };
    
    function scheduleFibersWithFamiliesRecursively(fiber, updatedFamilies, staleFamilies) {
      {
        var alternate = fiber.alternate,
            child = fiber.child,
            sibling = fiber.sibling,
            tag = fiber.tag,
            type = fiber.type;
        var candidateType = null;
    
        switch (tag) {
          case FunctionComponent:
          case SimpleMemoComponent:
          case ClassComponent:
            candidateType = type;
            break;
    
          case ForwardRef:
            candidateType = type.render;
            break;
    
          default:
            break;
        }
    
        if (resolveFamily === null) {
          throw new Error('Expected resolveFamily to be set during hot reload.');
        }
    
        var needsRender = false;
        var needsRemount = false;
    
        if (candidateType !== null) {
          var family = resolveFamily(candidateType);
    
          if (family !== undefined) {
            if (staleFamilies.has(family)) {
              needsRemount = true;
            } else if (updatedFamilies.has(family)) {
              if (tag === ClassComponent) {
                needsRemount = true;
              } else {
                needsRender = true;
              }
            }
          }
        }
    
        if (failedBoundaries !== null) {
          if (failedBoundaries.has(fiber) || alternate !== null && failedBoundaries.has(alternate)) {
            needsRemount = true;
          }
        }
    
        if (needsRemount) {
          fiber._debugNeedsRemount = true;
        }
    
        if (needsRemount || needsRender) {
          scheduleWork(fiber, Sync);
        }
    
        if (child !== null && !needsRemount) {
          scheduleFibersWithFamiliesRecursively(child, updatedFamilies, staleFamilies);
        }
    
        if (sibling !== null) {
          scheduleFibersWithFamiliesRecursively(sibling, updatedFamilies, staleFamilies);
        }
      }
    }
    
    var findHostInstancesForRefresh = function (root, families) {
      {
        var hostInstances = new Set();
        var types = new Set(families.map(function (family) {
          return family.current;
        }));
        findHostInstancesForMatchingFibersRecursively(root.current, types, hostInstances);
        return hostInstances;
      }
    };
    
    function findHostInstancesForMatchingFibersRecursively(fiber, types, hostInstances) {
      {
        var child = fiber.child,
            sibling = fiber.sibling,
            tag = fiber.tag,
            type = fiber.type;
        var candidateType = null;
    
        switch (tag) {
          case FunctionComponent:
          case SimpleMemoComponent:
          case ClassComponent:
            candidateType = type;
            break;
    
          case ForwardRef:
            candidateType = type.render;
            break;
    
          default:
            break;
        }
    
        var didMatch = false;
    
        if (candidateType !== null) {
          if (types.has(candidateType)) {
            didMatch = true;
          }
        }
    
        if (didMatch) {
          // We have a match. This only drills down to the closest host components.
          // There's no need to search deeper because for the purpose of giving
          // visual feedback, "flashing" outermost parent rectangles is sufficient.
          findHostInstancesForFiberShallowly(fiber, hostInstances);
        } else {
          // If there's no match, maybe there will be one further down in the child tree.
          if (child !== null) {
            findHostInstancesForMatchingFibersRecursively(child, types, hostInstances);
          }
        }
    
        if (sibling !== null) {
          findHostInstancesForMatchingFibersRecursively(sibling, types, hostInstances);
        }
      }
    }
    
    function findHostInstancesForFiberShallowly(fiber, hostInstances) {
      {
        var foundHostInstances = findChildHostInstancesForFiberShallowly(fiber, hostInstances);
    
        if (foundHostInstances) {
          return;
        } // If we didn't find any host children, fallback to closest host parent.
    
    
        var node = fiber;
    
        while (true) {
          switch (node.tag) {
            case HostComponent:
              hostInstances.add(node.stateNode);
              return;
    
            case HostPortal:
              hostInstances.add(node.stateNode.containerInfo);
              return;
    
            case HostRoot:
              hostInstances.add(node.stateNode.containerInfo);
              return;
          }
    
          if (node.return === null) {
            throw new Error('Expected to reach root first.');
          }
    
          node = node.return;
        }
      }
    }
    
    function findChildHostInstancesForFiberShallowly(fiber, hostInstances) {
      {
        var node = fiber;
        var foundHostInstances = false;
    
        while (true) {
          if (node.tag === HostComponent) {
            // We got a match.
            foundHostInstances = true;
            hostInstances.add(node.stateNode); // There may still be more, so keep searching.
          } else if (node.child !== null) {
            node.child.return = node;
            node = node.child;
            continue;
          }
    
          if (node === fiber) {
            return foundHostInstances;
          }
    
          while (node.sibling === null) {
            if (node.return === null || node.return === fiber) {
              return foundHostInstances;
            }
    
            node = node.return;
          }
    
          node.sibling.return = node.return;
          node = node.sibling;
        }
      }
    
      return false;
    }
    
    function resolveDefaultProps(Component, baseProps) {
      if (Component && Component.defaultProps) {
        // Resolve default props. Taken from ReactElement
        var props = _assign({}, baseProps);
    
        var defaultProps = Component.defaultProps;
    
        for (var propName in defaultProps) {
          if (props[propName] === undefined) {
            props[propName] = defaultProps[propName];
          }
        }
    
        return props;
      }
    
      return baseProps;
    }
    function readLazyComponentType(lazyComponent) {
      initializeLazyComponentType(lazyComponent);
    
      if (lazyComponent._status !== Resolved) {
        throw lazyComponent._result;
      }
    
      return lazyComponent._result;
    }
    
    var valueCursor = createCursor(null);
    var rendererSigil;
    
    {
      // Use this to detect multiple renderers using the same context
      rendererSigil = {};
    }
    
    var currentlyRenderingFiber = null;
    var lastContextDependency = null;
    var lastContextWithAllBitsObserved = null;
    var isDisallowedContextReadInDEV = false;
    function resetContextDependencies() {
      // This is called right before React yields execution, to ensure `readContext`
      // cannot be called outside the render phase.
      currentlyRenderingFiber = null;
      lastContextDependency = null;
      lastContextWithAllBitsObserved = null;
    
      {
        isDisallowedContextReadInDEV = false;
      }
    }
    function enterDisallowedContextReadInDEV() {
      {
        isDisallowedContextReadInDEV = true;
      }
    }
    function exitDisallowedContextReadInDEV() {
      {
        isDisallowedContextReadInDEV = false;
      }
    }
    function pushProvider(providerFiber, nextValue) {
      var context = providerFiber.type._context;
    
      if (isPrimaryRenderer) {
        push(valueCursor, context._currentValue, providerFiber);
        context._currentValue = nextValue;
    
        {
          !(context._currentRenderer === undefined || context._currentRenderer === null || context._currentRenderer === rendererSigil) ? warningWithoutStack$1(false, 'Detected multiple renderers concurrently rendering the ' + 'same context provider. This is currently unsupported.') : void 0;
          context._currentRenderer = rendererSigil;
        }
      } else {
        push(valueCursor, context._currentValue2, providerFiber);
        context._currentValue2 = nextValue;
    
        {
          !(context._currentRenderer2 === undefined || context._currentRenderer2 === null || context._currentRenderer2 === rendererSigil) ? warningWithoutStack$1(false, 'Detected multiple renderers concurrently rendering the ' + 'same context provider. This is currently unsupported.') : void 0;
          context._currentRenderer2 = rendererSigil;
        }
      }
    }
    function popProvider(providerFiber) {
      var currentValue = valueCursor.current;
      pop(valueCursor, providerFiber);
      var context = providerFiber.type._context;
    
      if (isPrimaryRenderer) {
        context._currentValue = currentValue;
      } else {
        context._currentValue2 = currentValue;
      }
    }
    function calculateChangedBits(context, newValue, oldValue) {
      if (is$1(oldValue, newValue)) {
        // No change
        return 0;
      } else {
        var changedBits = typeof context._calculateChangedBits === 'function' ? context._calculateChangedBits(oldValue, newValue) : MAX_SIGNED_31_BIT_INT;
    
        {
          !((changedBits & MAX_SIGNED_31_BIT_INT) === changedBits) ? warning$1(false, 'calculateChangedBits: Expected the return value to be a ' + '31-bit integer. Instead received: %s', changedBits) : void 0;
        }
    
        return changedBits | 0;
      }
    }
    function scheduleWorkOnParentPath(parent, renderExpirationTime) {
      // Update the child expiration time of all the ancestors, including
      // the alternates.
      var node = parent;
    
      while (node !== null) {
        var alternate = node.alternate;
    
        if (node.childExpirationTime < renderExpirationTime) {
          node.childExpirationTime = renderExpirationTime;
    
          if (alternate !== null && alternate.childExpirationTime < renderExpirationTime) {
            alternate.childExpirationTime = renderExpirationTime;
          }
        } else if (alternate !== null && alternate.childExpirationTime < renderExpirationTime) {
          alternate.childExpirationTime = renderExpirationTime;
        } else {
          // Neither alternate was updated, which means the rest of the
          // ancestor path already has sufficient priority.
          break;
        }
    
        node = node.return;
      }
    }
    function propagateContextChange(workInProgress, context, changedBits, renderExpirationTime) {
      var fiber = workInProgress.child;
    
      if (fiber !== null) {
        // Set the return pointer of the child to the work-in-progress fiber.
        fiber.return = workInProgress;
      }
    
      while (fiber !== null) {
        var nextFiber = void 0; // Visit this fiber.
    
        var list = fiber.dependencies;
    
        if (list !== null) {
          nextFiber = fiber.child;
          var dependency = list.firstContext;
    
          while (dependency !== null) {
            // Check if the context matches.
            if (dependency.context === context && (dependency.observedBits & changedBits) !== 0) {
              // Match! Schedule an update on this fiber.
              if (fiber.tag === ClassComponent) {
                // Schedule a force update on the work-in-progress.
                var update = createUpdate(renderExpirationTime, null);
                update.tag = ForceUpdate; // TODO: Because we don't have a work-in-progress, this will add the
                // update to the current fiber, too, which means it will persist even if
                // this render is thrown away. Since it's a race condition, not sure it's
                // worth fixing.
    
                enqueueUpdate(fiber, update);
              }
    
              if (fiber.expirationTime < renderExpirationTime) {
                fiber.expirationTime = renderExpirationTime;
              }
    
              var alternate = fiber.alternate;
    
              if (alternate !== null && alternate.expirationTime < renderExpirationTime) {
                alternate.expirationTime = renderExpirationTime;
              }
    
              scheduleWorkOnParentPath(fiber.return, renderExpirationTime); // Mark the expiration time on the list, too.
    
              if (list.expirationTime < renderExpirationTime) {
                list.expirationTime = renderExpirationTime;
              } // Since we already found a match, we can stop traversing the
              // dependency list.
    
    
              break;
            }
    
            dependency = dependency.next;
          }
        } else if (fiber.tag === ContextProvider) {
          // Don't scan deeper if this is a matching provider
          nextFiber = fiber.type === workInProgress.type ? null : fiber.child;
        } else if (enableSuspenseServerRenderer && fiber.tag === DehydratedFragment) {
          // If a dehydrated suspense bounudary is in this subtree, we don't know
          // if it will have any context consumers in it. The best we can do is
          // mark it as having updates.
          var parentSuspense = fiber.return;
    
          (function () {
            if (!(parentSuspense !== null)) {
              {
                throw ReactError(Error("We just came from a parent so we must have had a parent. This is a bug in React."));
              }
            }
          })();
    
          if (parentSuspense.expirationTime < renderExpirationTime) {
            parentSuspense.expirationTime = renderExpirationTime;
          }
    
          var _alternate = parentSuspense.alternate;
    
          if (_alternate !== null && _alternate.expirationTime < renderExpirationTime) {
            _alternate.expirationTime = renderExpirationTime;
          } // This is intentionally passing this fiber as the parent
          // because we want to schedule this fiber as having work
          // on its children. We'll use the childExpirationTime on
          // this fiber to indicate that a context has changed.
    
    
          scheduleWorkOnParentPath(parentSuspense, renderExpirationTime);
          nextFiber = fiber.sibling;
        } else {
          // Traverse down.
          nextFiber = fiber.child;
        }
    
        if (nextFiber !== null) {
          // Set the return pointer of the child to the work-in-progress fiber.
          nextFiber.return = fiber;
        } else {
          // No child. Traverse to next sibling.
          nextFiber = fiber;
    
          while (nextFiber !== null) {
            if (nextFiber === workInProgress) {
              // We're back to the root of this subtree. Exit.
              nextFiber = null;
              break;
            }
    
            var sibling = nextFiber.sibling;
    
            if (sibling !== null) {
              // Set the return pointer of the sibling to the work-in-progress fiber.
              sibling.return = nextFiber.return;
              nextFiber = sibling;
              break;
            } // No more siblings. Traverse up.
    
    
            nextFiber = nextFiber.return;
          }
        }
    
        fiber = nextFiber;
      }
    }
    function prepareToReadContext(workInProgress, renderExpirationTime) {
      currentlyRenderingFiber = workInProgress;
      lastContextDependency = null;
      lastContextWithAllBitsObserved = null;
      var dependencies = workInProgress.dependencies;
    
      if (dependencies !== null) {
        var firstContext = dependencies.firstContext;
    
        if (firstContext !== null) {
          if (dependencies.expirationTime >= renderExpirationTime) {
            // Context list has a pending update. Mark that this fiber performed work.
            markWorkInProgressReceivedUpdate();
          } // Reset the work-in-progress list
    
    
          dependencies.firstContext = null;
        }
      }
    }
    function readContext(context, observedBits) {
      {
        // This warning would fire if you read context inside a Hook like useMemo.
        // Unlike the class check below, it's not enforced in production for perf.
        !!isDisallowedContextReadInDEV ? warning$1(false, 'Context can only be read while React is rendering. ' + 'In classes, you can read it in the render method or getDerivedStateFromProps. ' + 'In function components, you can read it directly in the function body, but not ' + 'inside Hooks like useReducer() or useMemo().') : void 0;
      }
    
      if (lastContextWithAllBitsObserved === context) {// Nothing to do. We already observe everything in this context.
      } else if (observedBits === false || observedBits === 0) {// Do not observe any updates.
      } else {
        var resolvedObservedBits; // Avoid deopting on observable arguments or heterogeneous types.
    
        if (typeof observedBits !== 'number' || observedBits === MAX_SIGNED_31_BIT_INT) {
          // Observe all updates.
          lastContextWithAllBitsObserved = context;
          resolvedObservedBits = MAX_SIGNED_31_BIT_INT;
        } else {
          resolvedObservedBits = observedBits;
        }
    
        var contextItem = {
          context: context,
          observedBits: resolvedObservedBits,
          next: null
        };
    
        if (lastContextDependency === null) {
          (function () {
            if (!(currentlyRenderingFiber !== null)) {
              {
                throw ReactError(Error("Context can only be read while React is rendering. In classes, you can read it in the render method or getDerivedStateFromProps. In function components, you can read it directly in the function body, but not inside Hooks like useReducer() or useMemo()."));
              }
            }
          })(); // This is the first dependency for this component. Create a new list.
    
    
          lastContextDependency = contextItem;
          currentlyRenderingFiber.dependencies = {
            expirationTime: NoWork,
            firstContext: contextItem,
            responders: null
          };
        } else {
          // Append a new context item.
          lastContextDependency = lastContextDependency.next = contextItem;
        }
      }
    
      return isPrimaryRenderer ? context._currentValue : context._currentValue2;
    }
    
    // UpdateQueue is a linked list of prioritized updates.
    //
    // Like fibers, update queues come in pairs: a current queue, which represents
    // the visible state of the screen, and a work-in-progress queue, which can be
    // mutated and processed asynchronously before it is committed — a form of
    // double buffering. If a work-in-progress render is discarded before finishing,
    // we create a new work-in-progress by cloning the current queue.
    //
    // Both queues share a persistent, singly-linked list structure. To schedule an
    // update, we append it to the end of both queues. Each queue maintains a
    // pointer to first update in the persistent list that hasn't been processed.
    // The work-in-progress pointer always has a position equal to or greater than
    // the current queue, since we always work on that one. The current queue's
    // pointer is only updated during the commit phase, when we swap in the
    // work-in-progress.
    //
    // For example:
    //
    //   Current pointer:           A - B - C - D - E - F
    //   Work-in-progress pointer:              D - E - F
    //                                          ^
    //                                          The work-in-progress queue has
    //                                          processed more updates than current.
    //
    // The reason we append to both queues is because otherwise we might drop
    // updates without ever processing them. For example, if we only add updates to
    // the work-in-progress queue, some updates could be lost whenever a work-in
    // -progress render restarts by cloning from current. Similarly, if we only add
    // updates to the current queue, the updates will be lost whenever an already
    // in-progress queue commits and swaps with the current queue. However, by
    // adding to both queues, we guarantee that the update will be part of the next
    // work-in-progress. (And because the work-in-progress queue becomes the
    // current queue once it commits, there's no danger of applying the same
    // update twice.)
    //
    // Prioritization
    // --------------
    //
    // Updates are not sorted by priority, but by insertion; new updates are always
    // appended to the end of the list.
    //
    // The priority is still important, though. When processing the update queue
    // during the render phase, only the updates with sufficient priority are
    // included in the result. If we skip an update because it has insufficient
    // priority, it remains in the queue to be processed later, during a lower
    // priority render. Crucially, all updates subsequent to a skipped update also
    // remain in the queue *regardless of their priority*. That means high priority
    // updates are sometimes processed twice, at two separate priorities. We also
    // keep track of a base state, that represents the state before the first
    // update in the queue is applied.
    //
    // For example:
    //
    //   Given a base state of '', and the following queue of updates
    //
    //     A1 - B2 - C1 - D2
    //
    //   where the number indicates the priority, and the update is applied to the
    //   previous state by appending a letter, React will process these updates as
    //   two separate renders, one per distinct priority level:
    //
    //   First render, at priority 1:
    //     Base state: ''
    //     Updates: [A1, C1]
    //     Result state: 'AC'
    //
    //   Second render, at priority 2:
    //     Base state: 'A'            <-  The base state does not include C1,
    //                                    because B2 was skipped.
    //     Updates: [B2, C1, D2]      <-  C1 was rebased on top of B2
    //     Result state: 'ABCD'
    //
    // Because we process updates in insertion order, and rebase high priority
    // updates when preceding updates are skipped, the final result is deterministic
    // regardless of priority. Intermediate state may vary according to system
    // resources, but the final state is always the same.
    var UpdateState = 0;
    var ReplaceState = 1;
    var ForceUpdate = 2;
    var CaptureUpdate = 3; // Global state that is reset at the beginning of calling `processUpdateQueue`.
    // It should only be read right after calling `processUpdateQueue`, via
    // `checkHasForceUpdateAfterProcessing`.
    
    var hasForceUpdate = false;
    var didWarnUpdateInsideUpdate;
    var currentlyProcessingQueue;
    
    
    {
      didWarnUpdateInsideUpdate = false;
      currentlyProcessingQueue = null;
    
      
    }
    
    function createUpdateQueue(baseState) {
      var queue = {
        baseState: baseState,
        firstUpdate: null,
        lastUpdate: null,
        firstCapturedUpdate: null,
        lastCapturedUpdate: null,
        firstEffect: null,
        lastEffect: null,
        firstCapturedEffect: null,
        lastCapturedEffect: null
      };
      return queue;
    }
    
    function cloneUpdateQueue(currentQueue) {
      var queue = {
        baseState: currentQueue.baseState,
        firstUpdate: currentQueue.firstUpdate,
        lastUpdate: currentQueue.lastUpdate,
        // TODO: With resuming, if we bail out and resuse the child tree, we should
        // keep these effects.
        firstCapturedUpdate: null,
        lastCapturedUpdate: null,
        firstEffect: null,
        lastEffect: null,
        firstCapturedEffect: null,
        lastCapturedEffect: null
      };
      return queue;
    }
    
    function createUpdate(expirationTime, suspenseConfig) {
      var update = {
        expirationTime: expirationTime,
        suspenseConfig: suspenseConfig,
        tag: UpdateState,
        payload: null,
        callback: null,
        next: null,
        nextEffect: null
      };
    
      {
        update.priority = getCurrentPriorityLevel();
      }
    
      return update;
    }
    
    function appendUpdateToQueue(queue, update) {
      // Append the update to the end of the list.
      if (queue.lastUpdate === null) {
        // Queue is empty
        queue.firstUpdate = queue.lastUpdate = update;
      } else {
        queue.lastUpdate.next = update;
        queue.lastUpdate = update;
      }
    }
    
    function enqueueUpdate(fiber, update) {
      // Update queues are created lazily.
      var alternate = fiber.alternate;
      var queue1;
      var queue2;
    
      if (alternate === null) {
        // There's only one fiber.
        queue1 = fiber.updateQueue;
        queue2 = null;
    
        if (queue1 === null) {
          queue1 = fiber.updateQueue = createUpdateQueue(fiber.memoizedState);
        }
      } else {
        // There are two owners.
        queue1 = fiber.updateQueue;
        queue2 = alternate.updateQueue;
    
        if (queue1 === null) {
          if (queue2 === null) {
            // Neither fiber has an update queue. Create new ones.
            queue1 = fiber.updateQueue = createUpdateQueue(fiber.memoizedState);
            queue2 = alternate.updateQueue = createUpdateQueue(alternate.memoizedState);
          } else {
            // Only one fiber has an update queue. Clone to create a new one.
            queue1 = fiber.updateQueue = cloneUpdateQueue(queue2);
          }
        } else {
          if (queue2 === null) {
            // Only one fiber has an update queue. Clone to create a new one.
            queue2 = alternate.updateQueue = cloneUpdateQueue(queue1);
          } else {// Both owners have an update queue.
          }
        }
      }
    
      if (queue2 === null || queue1 === queue2) {
        // There's only a single queue.
        appendUpdateToQueue(queue1, update);
      } else {
        // There are two queues. We need to append the update to both queues,
        // while accounting for the persistent structure of the list — we don't
        // want the same update to be added multiple times.
        if (queue1.lastUpdate === null || queue2.lastUpdate === null) {
          // One of the queues is not empty. We must add the update to both queues.
          appendUpdateToQueue(queue1, update);
          appendUpdateToQueue(queue2, update);
        } else {
          // Both queues are non-empty. The last update is the same in both lists,
          // because of structural sharing. So, only append to one of the lists.
          appendUpdateToQueue(queue1, update); // But we still need to update the `lastUpdate` pointer of queue2.
    
          queue2.lastUpdate = update;
        }
      }
    
      {
        if (fiber.tag === ClassComponent && (currentlyProcessingQueue === queue1 || queue2 !== null && currentlyProcessingQueue === queue2) && !didWarnUpdateInsideUpdate) {
          warningWithoutStack$1(false, 'An update (setState, replaceState, or forceUpdate) was scheduled ' + 'from inside an update function. Update functions should be pure, ' + 'with zero side-effects. Consider using componentDidUpdate or a ' + 'callback.');
          didWarnUpdateInsideUpdate = true;
        }
      }
    }
    function enqueueCapturedUpdate(workInProgress, update) {
      // Captured updates go into a separate list, and only on the work-in-
      // progress queue.
      var workInProgressQueue = workInProgress.updateQueue;
    
      if (workInProgressQueue === null) {
        workInProgressQueue = workInProgress.updateQueue = createUpdateQueue(workInProgress.memoizedState);
      } else {
        // TODO: I put this here rather than createWorkInProgress so that we don't
        // clone the queue unnecessarily. There's probably a better way to
        // structure this.
        workInProgressQueue = ensureWorkInProgressQueueIsAClone(workInProgress, workInProgressQueue);
      } // Append the update to the end of the list.
    
    
      if (workInProgressQueue.lastCapturedUpdate === null) {
        // This is the first render phase update
        workInProgressQueue.firstCapturedUpdate = workInProgressQueue.lastCapturedUpdate = update;
      } else {
        workInProgressQueue.lastCapturedUpdate.next = update;
        workInProgressQueue.lastCapturedUpdate = update;
      }
    }
    
    function ensureWorkInProgressQueueIsAClone(workInProgress, queue) {
      var current = workInProgress.alternate;
    
      if (current !== null) {
        // If the work-in-progress queue is equal to the current queue,
        // we need to clone it first.
        if (queue === current.updateQueue) {
          queue = workInProgress.updateQueue = cloneUpdateQueue(queue);
        }
      }
    
      return queue;
    }
    
    function getStateFromUpdate(workInProgress, queue, update, prevState, nextProps, instance) {
      switch (update.tag) {
        case ReplaceState:
          {
            var payload = update.payload;
    
            if (typeof payload === 'function') {
              // Updater function
              {
                enterDisallowedContextReadInDEV();
    
                if (debugRenderPhaseSideEffects || debugRenderPhaseSideEffectsForStrictMode && workInProgress.mode & StrictMode) {
                  payload.call(instance, prevState, nextProps);
                }
              }
    
              var nextState = payload.call(instance, prevState, nextProps);
    
              {
                exitDisallowedContextReadInDEV();
              }
    
              return nextState;
            } // State object
    
    
            return payload;
          }
    
        case CaptureUpdate:
          {
            workInProgress.effectTag = workInProgress.effectTag & ~ShouldCapture | DidCapture;
          }
        // Intentional fallthrough
    
        case UpdateState:
          {
            var _payload = update.payload;
            var partialState;
    
            if (typeof _payload === 'function') {
              // Updater function
              {
                enterDisallowedContextReadInDEV();
    
                if (debugRenderPhaseSideEffects || debugRenderPhaseSideEffectsForStrictMode && workInProgress.mode & StrictMode) {
                  _payload.call(instance, prevState, nextProps);
                }
              }
    
              partialState = _payload.call(instance, prevState, nextProps);
    
              {
                exitDisallowedContextReadInDEV();
              }
            } else {
              // Partial state object
              partialState = _payload;
            }
    
            if (partialState === null || partialState === undefined) {
              // Null and undefined are treated as no-ops.
              return prevState;
            } // Merge the partial state and the previous state.
    
    
            return _assign({}, prevState, partialState);
          }
    
        case ForceUpdate:
          {
            hasForceUpdate = true;
            return prevState;
          }
      }
    
      return prevState;
    }
    
    function processUpdateQueue(workInProgress, queue, props, instance, renderExpirationTime) {
      hasForceUpdate = false;
      queue = ensureWorkInProgressQueueIsAClone(workInProgress, queue);
    
      {
        currentlyProcessingQueue = queue;
      } // These values may change as we process the queue.
    
    
      var newBaseState = queue.baseState;
      var newFirstUpdate = null;
      var newExpirationTime = NoWork; // Iterate through the list of updates to compute the result.
    
      var update = queue.firstUpdate;
      var resultState = newBaseState;
    
      while (update !== null) {
        var updateExpirationTime = update.expirationTime;
    
        if (updateExpirationTime < renderExpirationTime) {
          // This update does not have sufficient priority. Skip it.
          if (newFirstUpdate === null) {
            // This is the first skipped update. It will be the first update in
            // the new list.
            newFirstUpdate = update; // Since this is the first update that was skipped, the current result
            // is the new base state.
    
            newBaseState = resultState;
          } // Since this update will remain in the list, update the remaining
          // expiration time.
    
    
          if (newExpirationTime < updateExpirationTime) {
            newExpirationTime = updateExpirationTime;
          }
        } else {
          // This update does have sufficient priority.
          // Mark the event time of this update as relevant to this render pass.
          // TODO: This should ideally use the true event time of this update rather than
          // its priority which is a derived and not reverseable value.
          // TODO: We should skip this update if it was already committed but currently
          // we have no way of detecting the difference between a committed and suspended
          // update here.
          markRenderEventTimeAndConfig(updateExpirationTime, update.suspenseConfig); // Process it and compute a new result.
    
          resultState = getStateFromUpdate(workInProgress, queue, update, resultState, props, instance);
          var callback = update.callback;
    
          if (callback !== null) {
            workInProgress.effectTag |= Callback; // Set this to null, in case it was mutated during an aborted render.
    
            update.nextEffect = null;
    
            if (queue.lastEffect === null) {
              queue.firstEffect = queue.lastEffect = update;
            } else {
              queue.lastEffect.nextEffect = update;
              queue.lastEffect = update;
            }
          }
        } // Continue to the next update.
    
    
        update = update.next;
      } // Separately, iterate though the list of captured updates.
    
    
      var newFirstCapturedUpdate = null;
      update = queue.firstCapturedUpdate;
    
      while (update !== null) {
        var _updateExpirationTime = update.expirationTime;
    
        if (_updateExpirationTime < renderExpirationTime) {
          // This update does not have sufficient priority. Skip it.
          if (newFirstCapturedUpdate === null) {
            // This is the first skipped captured update. It will be the first
            // update in the new list.
            newFirstCapturedUpdate = update; // If this is the first update that was skipped, the current result is
            // the new base state.
    
            if (newFirstUpdate === null) {
              newBaseState = resultState;
            }
          } // Since this update will remain in the list, update the remaining
          // expiration time.
    
    
          if (newExpirationTime < _updateExpirationTime) {
            newExpirationTime = _updateExpirationTime;
          }
        } else {
          // This update does have sufficient priority. Process it and compute
          // a new result.
          resultState = getStateFromUpdate(workInProgress, queue, update, resultState, props, instance);
          var _callback = update.callback;
    
          if (_callback !== null) {
            workInProgress.effectTag |= Callback; // Set this to null, in case it was mutated during an aborted render.
    
            update.nextEffect = null;
    
            if (queue.lastCapturedEffect === null) {
              queue.firstCapturedEffect = queue.lastCapturedEffect = update;
            } else {
              queue.lastCapturedEffect.nextEffect = update;
              queue.lastCapturedEffect = update;
            }
          }
        }
    
        update = update.next;
      }
    
      if (newFirstUpdate === null) {
        queue.lastUpdate = null;
      }
    
      if (newFirstCapturedUpdate === null) {
        queue.lastCapturedUpdate = null;
      } else {
        workInProgress.effectTag |= Callback;
      }
    
      if (newFirstUpdate === null && newFirstCapturedUpdate === null) {
        // We processed every update, without skipping. That means the new base
        // state is the same as the result state.
        newBaseState = resultState;
      }
    
      queue.baseState = newBaseState;
      queue.firstUpdate = newFirstUpdate;
      queue.firstCapturedUpdate = newFirstCapturedUpdate; // Set the remaining expiration time to be whatever is remaining in the queue.
      // This should be fine because the only two other things that contribute to
      // expiration time are props and context. We're already in the middle of the
      // begin phase by the time we start processing the queue, so we've already
      // dealt with the props. Context in components that specify
      // shouldComponentUpdate is tricky; but we'll have to account for
      // that regardless.
    
      markUnprocessedUpdateTime(newExpirationTime);
      workInProgress.expirationTime = newExpirationTime;
      workInProgress.memoizedState = resultState;
    
      {
        currentlyProcessingQueue = null;
      }
    }
    
    function callCallback(callback, context) {
      (function () {
        if (!(typeof callback === 'function')) {
          {
            throw ReactError(Error("Invalid argument passed as callback. Expected a function. Instead received: " + callback));
          }
        }
      })();
    
      callback.call(context);
    }
    
    function resetHasForceUpdateBeforeProcessing() {
      hasForceUpdate = false;
    }
    function checkHasForceUpdateAfterProcessing() {
      return hasForceUpdate;
    }
    function commitUpdateQueue(finishedWork, finishedQueue, instance, renderExpirationTime) {
      // If the finished render included captured updates, and there are still
      // lower priority updates left over, we need to keep the captured updates
      // in the queue so that they are rebased and not dropped once we process the
      // queue again at the lower priority.
      if (finishedQueue.firstCapturedUpdate !== null) {
        // Join the captured update list to the end of the normal list.
        if (finishedQueue.lastUpdate !== null) {
          finishedQueue.lastUpdate.next = finishedQueue.firstCapturedUpdate;
          finishedQueue.lastUpdate = finishedQueue.lastCapturedUpdate;
        } // Clear the list of captured updates.
    
    
        finishedQueue.firstCapturedUpdate = finishedQueue.lastCapturedUpdate = null;
      } // Commit the effects
    
    
      commitUpdateEffects(finishedQueue.firstEffect, instance);
      finishedQueue.firstEffect = finishedQueue.lastEffect = null;
      commitUpdateEffects(finishedQueue.firstCapturedEffect, instance);
      finishedQueue.firstCapturedEffect = finishedQueue.lastCapturedEffect = null;
    }
    
    function commitUpdateEffects(effect, instance) {
      while (effect !== null) {
        var callback = effect.callback;
    
        if (callback !== null) {
          effect.callback = null;
          callCallback(callback, instance);
        }
    
        effect = effect.nextEffect;
      }
    }
    
    var ReactCurrentBatchConfig = ReactSharedInternals.ReactCurrentBatchConfig;
    function requestCurrentSuspenseConfig() {
      return ReactCurrentBatchConfig.suspense;
    }
    
    var fakeInternalInstance = {};
    var isArray$1 = Array.isArray; // React.Component uses a shared frozen object by default.
    // We'll use it to determine whether we need to initialize legacy refs.
    
    var emptyRefsObject = new React.Component().refs;
    var didWarnAboutStateAssignmentForComponent;
    var didWarnAboutUninitializedState;
    var didWarnAboutGetSnapshotBeforeUpdateWithoutDidUpdate;
    var didWarnAboutLegacyLifecyclesAndDerivedState;
    var didWarnAboutUndefinedDerivedState;
    var warnOnUndefinedDerivedState;
    var warnOnInvalidCallback$1;
    var didWarnAboutDirectlyAssigningPropsToState;
    var didWarnAboutContextTypeAndContextTypes;
    var didWarnAboutInvalidateContextType;
    
    {
      didWarnAboutStateAssignmentForComponent = new Set();
      didWarnAboutUninitializedState = new Set();
      didWarnAboutGetSnapshotBeforeUpdateWithoutDidUpdate = new Set();
      didWarnAboutLegacyLifecyclesAndDerivedState = new Set();
      didWarnAboutDirectlyAssigningPropsToState = new Set();
      didWarnAboutUndefinedDerivedState = new Set();
      didWarnAboutContextTypeAndContextTypes = new Set();
      didWarnAboutInvalidateContextType = new Set();
      var didWarnOnInvalidCallback = new Set();
    
      warnOnInvalidCallback$1 = function (callback, callerName) {
        if (callback === null || typeof callback === 'function') {
          return;
        }
    
        var key = callerName + "_" + callback;
    
        if (!didWarnOnInvalidCallback.has(key)) {
          didWarnOnInvalidCallback.add(key);
          warningWithoutStack$1(false, '%s(...): Expected the last optional `callback` argument to be a ' + 'function. Instead received: %s.', callerName, callback);
        }
      };
    
      warnOnUndefinedDerivedState = function (type, partialState) {
        if (partialState === undefined) {
          var componentName = getComponentName(type) || 'Component';
    
          if (!didWarnAboutUndefinedDerivedState.has(componentName)) {
            didWarnAboutUndefinedDerivedState.add(componentName);
            warningWithoutStack$1(false, '%s.getDerivedStateFromProps(): A valid state object (or null) must be returned. ' + 'You have returned undefined.', componentName);
          }
        }
      }; // This is so gross but it's at least non-critical and can be removed if
      // it causes problems. This is meant to give a nicer error message for
      // ReactDOM15.unstable_renderSubtreeIntoContainer(reactDOM16Component,
      // ...)) which otherwise throws a "_processChildContext is not a function"
      // exception.
    
    
      Object.defineProperty(fakeInternalInstance, '_processChildContext', {
        enumerable: false,
        value: function () {
          (function () {
            {
              {
                throw ReactError(Error("_processChildContext is not available in React 16+. This likely means you have multiple copies of React and are attempting to nest a React 15 tree inside a React 16 tree using unstable_renderSubtreeIntoContainer, which isn't supported. Try to make sure you have only one copy of React (and ideally, switch to ReactDOM.createPortal)."));
              }
            }
          })();
        }
      });
      Object.freeze(fakeInternalInstance);
    }
    
    function applyDerivedStateFromProps(workInProgress, ctor, getDerivedStateFromProps, nextProps) {
      var prevState = workInProgress.memoizedState;
    
      {
        if (debugRenderPhaseSideEffects || debugRenderPhaseSideEffectsForStrictMode && workInProgress.mode & StrictMode) {
          // Invoke the function an extra time to help detect side-effects.
          getDerivedStateFromProps(nextProps, prevState);
        }
      }
    
      var partialState = getDerivedStateFromProps(nextProps, prevState);
    
      {
        warnOnUndefinedDerivedState(ctor, partialState);
      } // Merge the partial state and the previous state.
    
    
      var memoizedState = partialState === null || partialState === undefined ? prevState : _assign({}, prevState, partialState);
      workInProgress.memoizedState = memoizedState; // Once the update queue is empty, persist the derived state onto the
      // base state.
    
      var updateQueue = workInProgress.updateQueue;
    
      if (updateQueue !== null && workInProgress.expirationTime === NoWork) {
        updateQueue.baseState = memoizedState;
      }
    }
    var classComponentUpdater = {
      isMounted: isMounted,
      enqueueSetState: function (inst, payload, callback) {
        var fiber = get(inst);
        var currentTime = requestCurrentTime();
        var suspenseConfig = requestCurrentSuspenseConfig();
        var expirationTime = computeExpirationForFiber(currentTime, fiber, suspenseConfig);
        var update = createUpdate(expirationTime, suspenseConfig);
        update.payload = payload;
    
        if (callback !== undefined && callback !== null) {
          {
            warnOnInvalidCallback$1(callback, 'setState');
          }
    
          update.callback = callback;
        }
    
        enqueueUpdate(fiber, update);
        scheduleWork(fiber, expirationTime);
      },
      enqueueReplaceState: function (inst, payload, callback) {
        var fiber = get(inst);
        var currentTime = requestCurrentTime();
        var suspenseConfig = requestCurrentSuspenseConfig();
        var expirationTime = computeExpirationForFiber(currentTime, fiber, suspenseConfig);
        var update = createUpdate(expirationTime, suspenseConfig);
        update.tag = ReplaceState;
        update.payload = payload;
    
        if (callback !== undefined && callback !== null) {
          {
            warnOnInvalidCallback$1(callback, 'replaceState');
          }
    
          update.callback = callback;
        }
    
        enqueueUpdate(fiber, update);
        scheduleWork(fiber, expirationTime);
      },
      enqueueForceUpdate: function (inst, callback) {
        var fiber = get(inst);
        var currentTime = requestCurrentTime();
        var suspenseConfig = requestCurrentSuspenseConfig();
        var expirationTime = computeExpirationForFiber(currentTime, fiber, suspenseConfig);
        var update = createUpdate(expirationTime, suspenseConfig);
        update.tag = ForceUpdate;
    
        if (callback !== undefined && callback !== null) {
          {
            warnOnInvalidCallback$1(callback, 'forceUpdate');
          }
    
          update.callback = callback;
        }
    
        enqueueUpdate(fiber, update);
        scheduleWork(fiber, expirationTime);
      }
    };
    
    function checkShouldComponentUpdate(workInProgress, ctor, oldProps, newProps, oldState, newState, nextContext) {
      var instance = workInProgress.stateNode;
    
      if (typeof instance.shouldComponentUpdate === 'function') {
        startPhaseTimer(workInProgress, 'shouldComponentUpdate');
        var shouldUpdate = instance.shouldComponentUpdate(newProps, newState, nextContext);
        stopPhaseTimer();
    
        {
          !(shouldUpdate !== undefined) ? warningWithoutStack$1(false, '%s.shouldComponentUpdate(): Returned undefined instead of a ' + 'boolean value. Make sure to return true or false.', getComponentName(ctor) || 'Component') : void 0;
        }
    
        return shouldUpdate;
      }
    
      if (ctor.prototype && ctor.prototype.isPureReactComponent) {
        return !shallowEqual(oldProps, newProps) || !shallowEqual(oldState, newState);
      }
    
      return true;
    }
    
    function checkClassInstance(workInProgress, ctor, newProps) {
      var instance = workInProgress.stateNode;
    
      {
        var name = getComponentName(ctor) || 'Component';
        var renderPresent = instance.render;
    
        if (!renderPresent) {
          if (ctor.prototype && typeof ctor.prototype.render === 'function') {
            warningWithoutStack$1(false, '%s(...): No `render` method found on the returned component ' + 'instance: did you accidentally return an object from the constructor?', name);
          } else {
            warningWithoutStack$1(false, '%s(...): No `render` method found on the returned component ' + 'instance: you may have forgotten to define `render`.', name);
          }
        }
    
        var noGetInitialStateOnES6 = !instance.getInitialState || instance.getInitialState.isReactClassApproved || instance.state;
        !noGetInitialStateOnES6 ? warningWithoutStack$1(false, 'getInitialState was defined on %s, a plain JavaScript class. ' + 'This is only supported for classes created using React.createClass. ' + 'Did you mean to define a state property instead?', name) : void 0;
        var noGetDefaultPropsOnES6 = !instance.getDefaultProps || instance.getDefaultProps.isReactClassApproved;
        !noGetDefaultPropsOnES6 ? warningWithoutStack$1(false, 'getDefaultProps was defined on %s, a plain JavaScript class. ' + 'This is only supported for classes created using React.createClass. ' + 'Use a static property to define defaultProps instead.', name) : void 0;
        var noInstancePropTypes = !instance.propTypes;
        !noInstancePropTypes ? warningWithoutStack$1(false, 'propTypes was defined as an instance property on %s. Use a static ' + 'property to define propTypes instead.', name) : void 0;
        var noInstanceContextType = !instance.contextType;
        !noInstanceContextType ? warningWithoutStack$1(false, 'contextType was defined as an instance property on %s. Use a static ' + 'property to define contextType instead.', name) : void 0;
    
        if (disableLegacyContext) {
          if (ctor.childContextTypes) {
            warningWithoutStack$1(false, '%s uses the legacy childContextTypes API which is no longer supported. ' + 'Use React.createContext() instead.', name);
          }
    
          if (ctor.contextTypes) {
            warningWithoutStack$1(false, '%s uses the legacy contextTypes API which is no longer supported. ' + 'Use React.createContext() with static contextType instead.', name);
          }
        } else {
          var noInstanceContextTypes = !instance.contextTypes;
          !noInstanceContextTypes ? warningWithoutStack$1(false, 'contextTypes was defined as an instance property on %s. Use a static ' + 'property to define contextTypes instead.', name) : void 0;
    
          if (ctor.contextType && ctor.contextTypes && !didWarnAboutContextTypeAndContextTypes.has(ctor)) {
            didWarnAboutContextTypeAndContextTypes.add(ctor);
            warningWithoutStack$1(false, '%s declares both contextTypes and contextType static properties. ' + 'The legacy contextTypes property will be ignored.', name);
          }
        }
    
        var noComponentShouldUpdate = typeof instance.componentShouldUpdate !== 'function';
        !noComponentShouldUpdate ? warningWithoutStack$1(false, '%s has a method called ' + 'componentShouldUpdate(). Did you mean shouldComponentUpdate()? ' + 'The name is phrased as a question because the function is ' + 'expected to return a value.', name) : void 0;
    
        if (ctor.prototype && ctor.prototype.isPureReactComponent && typeof instance.shouldComponentUpdate !== 'undefined') {
          warningWithoutStack$1(false, '%s has a method called shouldComponentUpdate(). ' + 'shouldComponentUpdate should not be used when extending React.PureComponent. ' + 'Please extend React.Component if shouldComponentUpdate is used.', getComponentName(ctor) || 'A pure component');
        }
    
        var noComponentDidUnmount = typeof instance.componentDidUnmount !== 'function';
        !noComponentDidUnmount ? warningWithoutStack$1(false, '%s has a method called ' + 'componentDidUnmount(). But there is no such lifecycle method. ' + 'Did you mean componentWillUnmount()?', name) : void 0;
        var noComponentDidReceiveProps = typeof instance.componentDidReceiveProps !== 'function';
        !noComponentDidReceiveProps ? warningWithoutStack$1(false, '%s has a method called ' + 'componentDidReceiveProps(). But there is no such lifecycle method. ' + 'If you meant to update the state in response to changing props, ' + 'use componentWillReceiveProps(). If you meant to fetch data or ' + 'run side-effects or mutations after React has updated the UI, use componentDidUpdate().', name) : void 0;
        var noComponentWillRecieveProps = typeof instance.componentWillRecieveProps !== 'function';
        !noComponentWillRecieveProps ? warningWithoutStack$1(false, '%s has a method called ' + 'componentWillRecieveProps(). Did you mean componentWillReceiveProps()?', name) : void 0;
        var noUnsafeComponentWillRecieveProps = typeof instance.UNSAFE_componentWillRecieveProps !== 'function';
        !noUnsafeComponentWillRecieveProps ? warningWithoutStack$1(false, '%s has a method called ' + 'UNSAFE_componentWillRecieveProps(). Did you mean UNSAFE_componentWillReceiveProps()?', name) : void 0;
        var hasMutatedProps = instance.props !== newProps;
        !(instance.props === undefined || !hasMutatedProps) ? warningWithoutStack$1(false, '%s(...): When calling super() in `%s`, make sure to pass ' + "up the same props that your component's constructor was passed.", name, name) : void 0;
        var noInstanceDefaultProps = !instance.defaultProps;
        !noInstanceDefaultProps ? warningWithoutStack$1(false, 'Setting defaultProps as an instance property on %s is not supported and will be ignored.' + ' Instead, define defaultProps as a static property on %s.', name, name) : void 0;
    
        if (typeof instance.getSnapshotBeforeUpdate === 'function' && typeof instance.componentDidUpdate !== 'function' && !didWarnAboutGetSnapshotBeforeUpdateWithoutDidUpdate.has(ctor)) {
          didWarnAboutGetSnapshotBeforeUpdateWithoutDidUpdate.add(ctor);
          warningWithoutStack$1(false, '%s: getSnapshotBeforeUpdate() should be used with componentDidUpdate(). ' + 'This component defines getSnapshotBeforeUpdate() only.', getComponentName(ctor));
        }
    
        var noInstanceGetDerivedStateFromProps = typeof instance.getDerivedStateFromProps !== 'function';
        !noInstanceGetDerivedStateFromProps ? warningWithoutStack$1(false, '%s: getDerivedStateFromProps() is defined as an instance method ' + 'and will be ignored. Instead, declare it as a static method.', name) : void 0;
        var noInstanceGetDerivedStateFromCatch = typeof instance.getDerivedStateFromError !== 'function';
        !noInstanceGetDerivedStateFromCatch ? warningWithoutStack$1(false, '%s: getDerivedStateFromError() is defined as an instance method ' + 'and will be ignored. Instead, declare it as a static method.', name) : void 0;
        var noStaticGetSnapshotBeforeUpdate = typeof ctor.getSnapshotBeforeUpdate !== 'function';
        !noStaticGetSnapshotBeforeUpdate ? warningWithoutStack$1(false, '%s: getSnapshotBeforeUpdate() is defined as a static method ' + 'and will be ignored. Instead, declare it as an instance method.', name) : void 0;
        var _state = instance.state;
    
        if (_state && (typeof _state !== 'object' || isArray$1(_state))) {
          warningWithoutStack$1(false, '%s.state: must be set to an object or null', name);
        }
    
        if (typeof instance.getChildContext === 'function') {
          !(typeof ctor.childContextTypes === 'object') ? warningWithoutStack$1(false, '%s.getChildContext(): childContextTypes must be defined in order to ' + 'use getChildContext().', name) : void 0;
        }
      }
    }
    
    function adoptClassInstance(workInProgress, instance) {
      instance.updater = classComponentUpdater;
      workInProgress.stateNode = instance; // The instance needs access to the fiber so that it can schedule updates
    
      set(instance, workInProgress);
    
      {
        instance._reactInternalInstance = fakeInternalInstance;
      }
    }
    
    function constructClassInstance(workInProgress, ctor, props, renderExpirationTime) {
      var isLegacyContextConsumer = false;
      var unmaskedContext = emptyContextObject;
      var context = emptyContextObject;
      var contextType = ctor.contextType;
    
      {
        if ('contextType' in ctor) {
          var isValid = // Allow null for conditional declaration
          contextType === null || contextType !== undefined && contextType.$$typeof === REACT_CONTEXT_TYPE && contextType._context === undefined; // Not a <Context.Consumer>
    
          if (!isValid && !didWarnAboutInvalidateContextType.has(ctor)) {
            didWarnAboutInvalidateContextType.add(ctor);
            var addendum = '';
    
            if (contextType === undefined) {
              addendum = ' However, it is set to undefined. ' + 'This can be caused by a typo or by mixing up named and default imports. ' + 'This can also happen due to a circular dependency, so ' + 'try moving the createContext() call to a separate file.';
            } else if (typeof contextType !== 'object') {
              addendum = ' However, it is set to a ' + typeof contextType + '.';
            } else if (contextType.$$typeof === REACT_PROVIDER_TYPE) {
              addendum = ' Did you accidentally pass the Context.Provider instead?';
            } else if (contextType._context !== undefined) {
              // <Context.Consumer>
              addendum = ' Did you accidentally pass the Context.Consumer instead?';
            } else {
              addendum = ' However, it is set to an object with keys {' + Object.keys(contextType).join(', ') + '}.';
            }
    
            warningWithoutStack$1(false, '%s defines an invalid contextType. ' + 'contextType should point to the Context object returned by React.createContext().%s', getComponentName(ctor) || 'Component', addendum);
          }
        }
      }
    
      if (typeof contextType === 'object' && contextType !== null) {
        context = readContext(contextType);
      } else if (!disableLegacyContext) {
        unmaskedContext = getUnmaskedContext(workInProgress, ctor, true);
        var contextTypes = ctor.contextTypes;
        isLegacyContextConsumer = contextTypes !== null && contextTypes !== undefined;
        context = isLegacyContextConsumer ? getMaskedContext(workInProgress, unmaskedContext) : emptyContextObject;
      } // Instantiate twice to help detect side-effects.
    
    
      {
        if (debugRenderPhaseSideEffects || debugRenderPhaseSideEffectsForStrictMode && workInProgress.mode & StrictMode) {
          new ctor(props, context); // eslint-disable-line no-new
        }
      }
    
      var instance = new ctor(props, context);
      var state = workInProgress.memoizedState = instance.state !== null && instance.state !== undefined ? instance.state : null;
      adoptClassInstance(workInProgress, instance);
    
      {
        if (typeof ctor.getDerivedStateFromProps === 'function' && state === null) {
          var componentName = getComponentName(ctor) || 'Component';
    
          if (!didWarnAboutUninitializedState.has(componentName)) {
            didWarnAboutUninitializedState.add(componentName);
            warningWithoutStack$1(false, '`%s` uses `getDerivedStateFromProps` but its initial state is ' + '%s. This is not recommended. Instead, define the initial state by ' + 'assigning an object to `this.state` in the constructor of `%s`. ' + 'This ensures that `getDerivedStateFromProps` arguments have a consistent shape.', componentName, instance.state === null ? 'null' : 'undefined', componentName);
          }
        } // If new component APIs are defined, "unsafe" lifecycles won't be called.
        // Warn about these lifecycles if they are present.
        // Don't warn about react-lifecycles-compat polyfilled methods though.
    
    
        if (typeof ctor.getDerivedStateFromProps === 'function' || typeof instance.getSnapshotBeforeUpdate === 'function') {
          var foundWillMountName = null;
          var foundWillReceivePropsName = null;
          var foundWillUpdateName = null;
    
          if (typeof instance.componentWillMount === 'function' && instance.componentWillMount.__suppressDeprecationWarning !== true) {
            foundWillMountName = 'componentWillMount';
          } else if (typeof instance.UNSAFE_componentWillMount === 'function') {
            foundWillMountName = 'UNSAFE_componentWillMount';
          }
    
          if (typeof instance.componentWillReceiveProps === 'function' && instance.componentWillReceiveProps.__suppressDeprecationWarning !== true) {
            foundWillReceivePropsName = 'componentWillReceiveProps';
          } else if (typeof instance.UNSAFE_componentWillReceiveProps === 'function') {
            foundWillReceivePropsName = 'UNSAFE_componentWillReceiveProps';
          }
    
          if (typeof instance.componentWillUpdate === 'function' && instance.componentWillUpdate.__suppressDeprecationWarning !== true) {
            foundWillUpdateName = 'componentWillUpdate';
          } else if (typeof instance.UNSAFE_componentWillUpdate === 'function') {
            foundWillUpdateName = 'UNSAFE_componentWillUpdate';
          }
    
          if (foundWillMountName !== null || foundWillReceivePropsName !== null || foundWillUpdateName !== null) {
            var _componentName = getComponentName(ctor) || 'Component';
    
            var newApiName = typeof ctor.getDerivedStateFromProps === 'function' ? 'getDerivedStateFromProps()' : 'getSnapshotBeforeUpdate()';
    
            if (!didWarnAboutLegacyLifecyclesAndDerivedState.has(_componentName)) {
              didWarnAboutLegacyLifecyclesAndDerivedState.add(_componentName);
              warningWithoutStack$1(false, 'Unsafe legacy lifecycles will not be called for components using new component APIs.\n\n' + '%s uses %s but also contains the following legacy lifecycles:%s%s%s\n\n' + 'The above lifecycles should be removed. Learn more about this warning here:\n' + 'https://fb.me/react-unsafe-component-lifecycles', _componentName, newApiName, foundWillMountName !== null ? "\n  " + foundWillMountName : '', foundWillReceivePropsName !== null ? "\n  " + foundWillReceivePropsName : '', foundWillUpdateName !== null ? "\n  " + foundWillUpdateName : '');
            }
          }
        }
      } // Cache unmasked context so we can avoid recreating masked context unless necessary.
      // ReactFiberContext usually updates this cache but can't for newly-created instances.
    
    
      if (isLegacyContextConsumer) {
        cacheContext(workInProgress, unmaskedContext, context);
      }
    
      return instance;
    }
    
    function callComponentWillMount(workInProgress, instance) {
      startPhaseTimer(workInProgress, 'componentWillMount');
      var oldState = instance.state;
    
      if (typeof instance.componentWillMount === 'function') {
        instance.componentWillMount();
      }
    
      if (typeof instance.UNSAFE_componentWillMount === 'function') {
        instance.UNSAFE_componentWillMount();
      }
    
      stopPhaseTimer();
    
      if (oldState !== instance.state) {
        {
          warningWithoutStack$1(false, '%s.componentWillMount(): Assigning directly to this.state is ' + "deprecated (except inside a component's " + 'constructor). Use setState instead.', getComponentName(workInProgress.type) || 'Component');
        }
    
        classComponentUpdater.enqueueReplaceState(instance, instance.state, null);
      }
    }
    
    function callComponentWillReceiveProps(workInProgress, instance, newProps, nextContext) {
      var oldState = instance.state;
      startPhaseTimer(workInProgress, 'componentWillReceiveProps');
    
      if (typeof instance.componentWillReceiveProps === 'function') {
        instance.componentWillReceiveProps(newProps, nextContext);
      }
    
      if (typeof instance.UNSAFE_componentWillReceiveProps === 'function') {
        instance.UNSAFE_componentWillReceiveProps(newProps, nextContext);
      }
    
      stopPhaseTimer();
    
      if (instance.state !== oldState) {
        {
          var componentName = getComponentName(workInProgress.type) || 'Component';
    
          if (!didWarnAboutStateAssignmentForComponent.has(componentName)) {
            didWarnAboutStateAssignmentForComponent.add(componentName);
            warningWithoutStack$1(false, '%s.componentWillReceiveProps(): Assigning directly to ' + "this.state is deprecated (except inside a component's " + 'constructor). Use setState instead.', componentName);
          }
        }
    
        classComponentUpdater.enqueueReplaceState(instance, instance.state, null);
      }
    } // Invokes the mount life-cycles on a previously never rendered instance.
    
    
    function mountClassInstance(workInProgress, ctor, newProps, renderExpirationTime) {
      {
        checkClassInstance(workInProgress, ctor, newProps);
      }
    
      var instance = workInProgress.stateNode;
      instance.props = newProps;
      instance.state = workInProgress.memoizedState;
      instance.refs = emptyRefsObject;
      var contextType = ctor.contextType;
    
      if (typeof contextType === 'object' && contextType !== null) {
        instance.context = readContext(contextType);
      } else if (disableLegacyContext) {
        instance.context = emptyContextObject;
      } else {
        var unmaskedContext = getUnmaskedContext(workInProgress, ctor, true);
        instance.context = getMaskedContext(workInProgress, unmaskedContext);
      }
    
      {
        if (instance.state === newProps) {
          var componentName = getComponentName(ctor) || 'Component';
    
          if (!didWarnAboutDirectlyAssigningPropsToState.has(componentName)) {
            didWarnAboutDirectlyAssigningPropsToState.add(componentName);
            warningWithoutStack$1(false, '%s: It is not recommended to assign props directly to state ' + "because updates to props won't be reflected in state. " + 'In most cases, it is better to use props directly.', componentName);
          }
        }
    
        if (workInProgress.mode & StrictMode) {
          ReactStrictModeWarnings.recordLegacyContextWarning(workInProgress, instance);
        }
    
        if (warnAboutDeprecatedLifecycles) {
          ReactStrictModeWarnings.recordUnsafeLifecycleWarnings(workInProgress, instance);
        }
      }
    
      var updateQueue = workInProgress.updateQueue;
    
      if (updateQueue !== null) {
        processUpdateQueue(workInProgress, updateQueue, newProps, instance, renderExpirationTime);
        instance.state = workInProgress.memoizedState;
      }
    
      var getDerivedStateFromProps = ctor.getDerivedStateFromProps;
    
      if (typeof getDerivedStateFromProps === 'function') {
        applyDerivedStateFromProps(workInProgress, ctor, getDerivedStateFromProps, newProps);
        instance.state = workInProgress.memoizedState;
      } // In order to support react-lifecycles-compat polyfilled components,
      // Unsafe lifecycles should not be invoked for components using the new APIs.
    
    
      if (typeof ctor.getDerivedStateFromProps !== 'function' && typeof instance.getSnapshotBeforeUpdate !== 'function' && (typeof instance.UNSAFE_componentWillMount === 'function' || typeof instance.componentWillMount === 'function')) {
        callComponentWillMount(workInProgress, instance); // If we had additional state updates during this life-cycle, let's
        // process them now.
    
        updateQueue = workInProgress.updateQueue;
    
        if (updateQueue !== null) {
          processUpdateQueue(workInProgress, updateQueue, newProps, instance, renderExpirationTime);
          instance.state = workInProgress.memoizedState;
        }
      }
    
      if (typeof instance.componentDidMount === 'function') {
        workInProgress.effectTag |= Update;
      }
    }
    
    function resumeMountClassInstance(workInProgress, ctor, newProps, renderExpirationTime) {
      var instance = workInProgress.stateNode;
      var oldProps = workInProgress.memoizedProps;
      instance.props = oldProps;
      var oldContext = instance.context;
      var contextType = ctor.contextType;
      var nextContext = emptyContextObject;
    
      if (typeof contextType === 'object' && contextType !== null) {
        nextContext = readContext(contextType);
      } else if (!disableLegacyContext) {
        var nextLegacyUnmaskedContext = getUnmaskedContext(workInProgress, ctor, true);
        nextContext = getMaskedContext(workInProgress, nextLegacyUnmaskedContext);
      }
    
      var getDerivedStateFromProps = ctor.getDerivedStateFromProps;
      var hasNewLifecycles = typeof getDerivedStateFromProps === 'function' || typeof instance.getSnapshotBeforeUpdate === 'function'; // Note: During these life-cycles, instance.props/instance.state are what
      // ever the previously attempted to render - not the "current". However,
      // during componentDidUpdate we pass the "current" props.
      // In order to support react-lifecycles-compat polyfilled components,
      // Unsafe lifecycles should not be invoked for components using the new APIs.
    
      if (!hasNewLifecycles && (typeof instance.UNSAFE_componentWillReceiveProps === 'function' || typeof instance.componentWillReceiveProps === 'function')) {
        if (oldProps !== newProps || oldContext !== nextContext) {
          callComponentWillReceiveProps(workInProgress, instance, newProps, nextContext);
        }
      }
    
      resetHasForceUpdateBeforeProcessing();
      var oldState = workInProgress.memoizedState;
      var newState = instance.state = oldState;
      var updateQueue = workInProgress.updateQueue;
    
      if (updateQueue !== null) {
        processUpdateQueue(workInProgress, updateQueue, newProps, instance, renderExpirationTime);
        newState = workInProgress.memoizedState;
      }
    
      if (oldProps === newProps && oldState === newState && !hasContextChanged() && !checkHasForceUpdateAfterProcessing()) {
        // If an update was already in progress, we should schedule an Update
        // effect even though we're bailing out, so that cWU/cDU are called.
        if (typeof instance.componentDidMount === 'function') {
          workInProgress.effectTag |= Update;
        }
    
        return false;
      }
    
      if (typeof getDerivedStateFromProps === 'function') {
        applyDerivedStateFromProps(workInProgress, ctor, getDerivedStateFromProps, newProps);
        newState = workInProgress.memoizedState;
      }
    
      var shouldUpdate = checkHasForceUpdateAfterProcessing() || checkShouldComponentUpdate(workInProgress, ctor, oldProps, newProps, oldState, newState, nextContext);
    
      if (shouldUpdate) {
        // In order to support react-lifecycles-compat polyfilled components,
        // Unsafe lifecycles should not be invoked for components using the new APIs.
        if (!hasNewLifecycles && (typeof instance.UNSAFE_componentWillMount === 'function' || typeof instance.componentWillMount === 'function')) {
          startPhaseTimer(workInProgress, 'componentWillMount');
    
          if (typeof instance.componentWillMount === 'function') {
            instance.componentWillMount();
          }
    
          if (typeof instance.UNSAFE_componentWillMount === 'function') {
            instance.UNSAFE_componentWillMount();
          }
    
          stopPhaseTimer();
        }
    
        if (typeof instance.componentDidMount === 'function') {
          workInProgress.effectTag |= Update;
        }
      } else {
        // If an update was already in progress, we should schedule an Update
        // effect even though we're bailing out, so that cWU/cDU are called.
        if (typeof instance.componentDidMount === 'function') {
          workInProgress.effectTag |= Update;
        } // If shouldComponentUpdate returned false, we should still update the
        // memoized state to indicate that this work can be reused.
    
    
        workInProgress.memoizedProps = newProps;
        workInProgress.memoizedState = newState;
      } // Update the existing instance's state, props, and context pointers even
      // if shouldComponentUpdate returns false.
    
    
      instance.props = newProps;
      instance.state = newState;
      instance.context = nextContext;
      return shouldUpdate;
    } // Invokes the update life-cycles and returns false if it shouldn't rerender.
    
    
    function updateClassInstance(current, workInProgress, ctor, newProps, renderExpirationTime) {
      var instance = workInProgress.stateNode;
      var oldProps = workInProgress.memoizedProps;
      instance.props = workInProgress.type === workInProgress.elementType ? oldProps : resolveDefaultProps(workInProgress.type, oldProps);
      var oldContext = instance.context;
      var contextType = ctor.contextType;
      var nextContext = emptyContextObject;
    
      if (typeof contextType === 'object' && contextType !== null) {
        nextContext = readContext(contextType);
      } else if (!disableLegacyContext) {
        var nextUnmaskedContext = getUnmaskedContext(workInProgress, ctor, true);
        nextContext = getMaskedContext(workInProgress, nextUnmaskedContext);
      }
    
      var getDerivedStateFromProps = ctor.getDerivedStateFromProps;
      var hasNewLifecycles = typeof getDerivedStateFromProps === 'function' || typeof instance.getSnapshotBeforeUpdate === 'function'; // Note: During these life-cycles, instance.props/instance.state are what
      // ever the previously attempted to render - not the "current". However,
      // during componentDidUpdate we pass the "current" props.
      // In order to support react-lifecycles-compat polyfilled components,
      // Unsafe lifecycles should not be invoked for components using the new APIs.
    
      if (!hasNewLifecycles && (typeof instance.UNSAFE_componentWillReceiveProps === 'function' || typeof instance.componentWillReceiveProps === 'function')) {
        if (oldProps !== newProps || oldContext !== nextContext) {
          callComponentWillReceiveProps(workInProgress, instance, newProps, nextContext);
        }
      }
    
      resetHasForceUpdateBeforeProcessing();
      var oldState = workInProgress.memoizedState;
      var newState = instance.state = oldState;
      var updateQueue = workInProgress.updateQueue;
    
      if (updateQueue !== null) {
        processUpdateQueue(workInProgress, updateQueue, newProps, instance, renderExpirationTime);
        newState = workInProgress.memoizedState;
      }
    
      if (oldProps === newProps && oldState === newState && !hasContextChanged() && !checkHasForceUpdateAfterProcessing()) {
        // If an update was already in progress, we should schedule an Update
        // effect even though we're bailing out, so that cWU/cDU are called.
        if (typeof instance.componentDidUpdate === 'function') {
          if (oldProps !== current.memoizedProps || oldState !== current.memoizedState) {
            workInProgress.effectTag |= Update;
          }
        }
    
        if (typeof instance.getSnapshotBeforeUpdate === 'function') {
          if (oldProps !== current.memoizedProps || oldState !== current.memoizedState) {
            workInProgress.effectTag |= Snapshot;
          }
        }
    
        return false;
      }
    
      if (typeof getDerivedStateFromProps === 'function') {
        applyDerivedStateFromProps(workInProgress, ctor, getDerivedStateFromProps, newProps);
        newState = workInProgress.memoizedState;
      }
    
      var shouldUpdate = checkHasForceUpdateAfterProcessing() || checkShouldComponentUpdate(workInProgress, ctor, oldProps, newProps, oldState, newState, nextContext);
    
      if (shouldUpdate) {
        // In order to support react-lifecycles-compat polyfilled components,
        // Unsafe lifecycles should not be invoked for components using the new APIs.
        if (!hasNewLifecycles && (typeof instance.UNSAFE_componentWillUpdate === 'function' || typeof instance.componentWillUpdate === 'function')) {
          startPhaseTimer(workInProgress, 'componentWillUpdate');
    
          if (typeof instance.componentWillUpdate === 'function') {
            instance.componentWillUpdate(newProps, newState, nextContext);
          }
    
          if (typeof instance.UNSAFE_componentWillUpdate === 'function') {
            instance.UNSAFE_componentWillUpdate(newProps, newState, nextContext);
          }
    
          stopPhaseTimer();
        }
    
        if (typeof instance.componentDidUpdate === 'function') {
          workInProgress.effectTag |= Update;
        }
    
        if (typeof instance.getSnapshotBeforeUpdate === 'function') {
          workInProgress.effectTag |= Snapshot;
        }
      } else {
        // If an update was already in progress, we should schedule an Update
        // effect even though we're bailing out, so that cWU/cDU are called.
        if (typeof instance.componentDidUpdate === 'function') {
          if (oldProps !== current.memoizedProps || oldState !== current.memoizedState) {
            workInProgress.effectTag |= Update;
          }
        }
    
        if (typeof instance.getSnapshotBeforeUpdate === 'function') {
          if (oldProps !== current.memoizedProps || oldState !== current.memoizedState) {
            workInProgress.effectTag |= Snapshot;
          }
        } // If shouldComponentUpdate returned false, we should still update the
        // memoized props/state to indicate that this work can be reused.
    
    
        workInProgress.memoizedProps = newProps;
        workInProgress.memoizedState = newState;
      } // Update the existing instance's state, props, and context pointers even
      // if shouldComponentUpdate returns false.
    
    
      instance.props = newProps;
      instance.state = newState;
      instance.context = nextContext;
      return shouldUpdate;
    }
    
    var didWarnAboutMaps;
    var didWarnAboutGenerators;
    var didWarnAboutStringRefs;
    var ownerHasKeyUseWarning;
    var ownerHasFunctionTypeWarning;
    
    var warnForMissingKey = function (child) {};
    
    {
      didWarnAboutMaps = false;
      didWarnAboutGenerators = false;
      didWarnAboutStringRefs = {};
      /**
       * Warn if there's no key explicitly set on dynamic arrays of children or
       * object keys are not valid. This allows us to keep track of children between
       * updates.
       */
    
      ownerHasKeyUseWarning = {};
      ownerHasFunctionTypeWarning = {};
    
      warnForMissingKey = function (child) {
        if (child === null || typeof child !== 'object') {
          return;
        }
    
        if (!child._store || child._store.validated || child.key != null) {
          return;
        }
    
        (function () {
          if (!(typeof child._store === 'object')) {
            {
              throw ReactError(Error("React Component in warnForMissingKey should have a _store. This error is likely caused by a bug in React. Please file an issue."));
            }
          }
        })();
    
        child._store.validated = true;
        var currentComponentErrorInfo = 'Each child in a list should have a unique ' + '"key" prop. See https://fb.me/react-warning-keys for ' + 'more information.' + getCurrentFiberStackInDev();
    
        if (ownerHasKeyUseWarning[currentComponentErrorInfo]) {
          return;
        }
    
        ownerHasKeyUseWarning[currentComponentErrorInfo] = true;
        warning$1(false, 'Each child in a list should have a unique ' + '"key" prop. See https://fb.me/react-warning-keys for ' + 'more information.');
      };
    }
    
    var isArray = Array.isArray;
    
    function coerceRef(returnFiber, current$$1, element) {
      var mixedRef = element.ref;
    
      if (mixedRef !== null && typeof mixedRef !== 'function' && typeof mixedRef !== 'object') {
        {
          // TODO: Clean this up once we turn on the string ref warning for
          // everyone, because the strict mode case will no longer be relevant
          if (returnFiber.mode & StrictMode || warnAboutStringRefs) {
            var componentName = getComponentName(returnFiber.type) || 'Component';
    
            if (!didWarnAboutStringRefs[componentName]) {
              if (warnAboutStringRefs) {
                warningWithoutStack$1(false, 'Component "%s" contains the string ref "%s". Support for string refs ' + 'will be removed in a future major release. We recommend using ' + 'useRef() or createRef() instead. ' + 'Learn more about using refs safely here: ' + 'https://fb.me/react-strict-mode-string-ref%s', componentName, mixedRef, getStackByFiberInDevAndProd(returnFiber));
              } else {
                warningWithoutStack$1(false, 'A string ref, "%s", has been found within a strict mode tree. ' + 'String refs are a source of potential bugs and should be avoided. ' + 'We recommend using useRef() or createRef() instead. ' + 'Learn more about using refs safely here: ' + 'https://fb.me/react-strict-mode-string-ref%s', mixedRef, getStackByFiberInDevAndProd(returnFiber));
              }
    
              didWarnAboutStringRefs[componentName] = true;
            }
          }
        }
    
        if (element._owner) {
          var owner = element._owner;
          var inst;
    
          if (owner) {
            var ownerFiber = owner;
    
            (function () {
              if (!(ownerFiber.tag === ClassComponent)) {
                {
                  throw ReactError(Error("Function components cannot have refs. Did you mean to use React.forwardRef()?"));
                }
              }
            })();
    
            inst = ownerFiber.stateNode;
          }
    
          (function () {
            if (!inst) {
              {
                throw ReactError(Error("Missing owner for string ref " + mixedRef + ". This error is likely caused by a bug in React. Please file an issue."));
              }
            }
          })();
    
          var stringRef = '' + mixedRef; // Check if previous string ref matches new string ref
    
          if (current$$1 !== null && current$$1.ref !== null && typeof current$$1.ref === 'function' && current$$1.ref._stringRef === stringRef) {
            return current$$1.ref;
          }
    
          var ref = function (value) {
            var refs = inst.refs;
    
            if (refs === emptyRefsObject) {
              // This is a lazy pooled frozen object, so we need to initialize.
              refs = inst.refs = {};
            }
    
            if (value === null) {
              delete refs[stringRef];
            } else {
              refs[stringRef] = value;
            }
          };
    
          ref._stringRef = stringRef;
          return ref;
        } else {
          (function () {
            if (!(typeof mixedRef === 'string')) {
              {
                throw ReactError(Error("Expected ref to be a function, a string, an object returned by React.createRef(), or null."));
              }
            }
          })();
    
          (function () {
            if (!element._owner) {
              {
                throw ReactError(Error("Element ref was specified as a string (" + mixedRef + ") but no owner was set. This could happen for one of the following reasons:\n1. You may be adding a ref to a function component\n2. You may be adding a ref to a component that was not created inside a component's render method\n3. You have multiple copies of React loaded\nSee https://fb.me/react-refs-must-have-owner for more information."));
              }
            }
          })();
        }
      }
    
      return mixedRef;
    }
    
    function throwOnInvalidObjectType(returnFiber, newChild) {
      if (returnFiber.type !== 'textarea') {
        var addendum = '';
    
        {
          addendum = ' If you meant to render a collection of children, use an array ' + 'instead.' + getCurrentFiberStackInDev();
        }
    
        (function () {
          {
            {
              throw ReactError(Error("Objects are not valid as a React child (found: " + (Object.prototype.toString.call(newChild) === '[object Object]' ? 'object with keys {' + Object.keys(newChild).join(', ') + '}' : newChild) + ")." + addendum));
            }
          }
        })();
      }
    }
    
    function warnOnFunctionType() {
      var currentComponentErrorInfo = 'Functions are not valid as a React child. This may happen if ' + 'you return a Component instead of <Component /> from render. ' + 'Or maybe you meant to call this function rather than return it.' + getCurrentFiberStackInDev();
    
      if (ownerHasFunctionTypeWarning[currentComponentErrorInfo]) {
        return;
      }
    
      ownerHasFunctionTypeWarning[currentComponentErrorInfo] = true;
      warning$1(false, 'Functions are not valid as a React child. This may happen if ' + 'you return a Component instead of <Component /> from render. ' + 'Or maybe you meant to call this function rather than return it.');
    } // This wrapper function exists because I expect to clone the code in each path
    // to be able to optimize each path individually by branching early. This needs
    // a compiler or we can do it manually. Helpers that don't need this branching
    // live outside of this function.
    
    
    function ChildReconciler(shouldTrackSideEffects) {
      function deleteChild(returnFiber, childToDelete) {
        if (!shouldTrackSideEffects) {
          // Noop.
          return;
        } // Deletions are added in reversed order so we add it to the front.
        // At this point, the return fiber's effect list is empty except for
        // deletions, so we can just append the deletion to the list. The remaining
        // effects aren't added until the complete phase. Once we implement
        // resuming, this may not be true.
    
    
        var last = returnFiber.lastEffect;
    
        if (last !== null) {
          last.nextEffect = childToDelete;
          returnFiber.lastEffect = childToDelete;
        } else {
          returnFiber.firstEffect = returnFiber.lastEffect = childToDelete;
        }
    
        childToDelete.nextEffect = null;
        childToDelete.effectTag = Deletion;
      }
    
      function deleteRemainingChildren(returnFiber, currentFirstChild) {
        if (!shouldTrackSideEffects) {
          // Noop.
          return null;
        } // TODO: For the shouldClone case, this could be micro-optimized a bit by
        // assuming that after the first child we've already added everything.
    
    
        var childToDelete = currentFirstChild;
    
        while (childToDelete !== null) {
          deleteChild(returnFiber, childToDelete);
          childToDelete = childToDelete.sibling;
        }
    
        return null;
      }
    
      function mapRemainingChildren(returnFiber, currentFirstChild) {
        // Add the remaining children to a temporary map so that we can find them by
        // keys quickly. Implicit (null) keys get added to this set with their index
        // instead.
        var existingChildren = new Map();
        var existingChild = currentFirstChild;
    
        while (existingChild !== null) {
          if (existingChild.key !== null) {
            existingChildren.set(existingChild.key, existingChild);
          } else {
            existingChildren.set(existingChild.index, existingChild);
          }
    
          existingChild = existingChild.sibling;
        }
    
        return existingChildren;
      }
    
      function useFiber(fiber, pendingProps, expirationTime) {
        // We currently set sibling to null and index to 0 here because it is easy
        // to forget to do before returning it. E.g. for the single child case.
        var clone = createWorkInProgress(fiber, pendingProps, expirationTime);
        clone.index = 0;
        clone.sibling = null;
        return clone;
      }
    
      function placeChild(newFiber, lastPlacedIndex, newIndex) {
        newFiber.index = newIndex;
    
        if (!shouldTrackSideEffects) {
          // Noop.
          return lastPlacedIndex;
        }
    
        var current$$1 = newFiber.alternate;
    
        if (current$$1 !== null) {
          var oldIndex = current$$1.index;
    
          if (oldIndex < lastPlacedIndex) {
            // This is a move.
            newFiber.effectTag = Placement;
            return lastPlacedIndex;
          } else {
            // This item can stay in place.
            return oldIndex;
          }
        } else {
          // This is an insertion.
          newFiber.effectTag = Placement;
          return lastPlacedIndex;
        }
      }
    
      function placeSingleChild(newFiber) {
        // This is simpler for the single child case. We only need to do a
        // placement for inserting new children.
        if (shouldTrackSideEffects && newFiber.alternate === null) {
          newFiber.effectTag = Placement;
        }
    
        return newFiber;
      }
    
      function updateTextNode(returnFiber, current$$1, textContent, expirationTime) {
        if (current$$1 === null || current$$1.tag !== HostText) {
          // Insert
          var created = createFiberFromText(textContent, returnFiber.mode, expirationTime);
          created.return = returnFiber;
          return created;
        } else {
          // Update
          var existing = useFiber(current$$1, textContent, expirationTime);
          existing.return = returnFiber;
          return existing;
        }
      }
    
      function updateElement(returnFiber, current$$1, element, expirationTime) {
        if (current$$1 !== null && (current$$1.elementType === element.type || ( // Keep this check inline so it only runs on the false path:
        isCompatibleFamilyForHotReloading(current$$1, element)))) {
          // Move based on index
          var existing = useFiber(current$$1, element.props, expirationTime);
          existing.ref = coerceRef(returnFiber, current$$1, element);
          existing.return = returnFiber;
    
          {
            existing._debugSource = element._source;
            existing._debugOwner = element._owner;
          }
    
          return existing;
        } else {
          // Insert
          var created = createFiberFromElement(element, returnFiber.mode, expirationTime);
          created.ref = coerceRef(returnFiber, current$$1, element);
          created.return = returnFiber;
          return created;
        }
      }
    
      function updatePortal(returnFiber, current$$1, portal, expirationTime) {
        if (current$$1 === null || current$$1.tag !== HostPortal || current$$1.stateNode.containerInfo !== portal.containerInfo || current$$1.stateNode.implementation !== portal.implementation) {
          // Insert
          var created = createFiberFromPortal(portal, returnFiber.mode, expirationTime);
          created.return = returnFiber;
          return created;
        } else {
          // Update
          var existing = useFiber(current$$1, portal.children || [], expirationTime);
          existing.return = returnFiber;
          return existing;
        }
      }
    
      function updateFragment(returnFiber, current$$1, fragment, expirationTime, key) {
        if (current$$1 === null || current$$1.tag !== Fragment) {
          // Insert
          var created = createFiberFromFragment(fragment, returnFiber.mode, expirationTime, key);
          created.return = returnFiber;
          return created;
        } else {
          // Update
          var existing = useFiber(current$$1, fragment, expirationTime);
          existing.return = returnFiber;
          return existing;
        }
      }
    
      function createChild(returnFiber, newChild, expirationTime) {
        if (typeof newChild === 'string' || typeof newChild === 'number') {
          // Text nodes don't have keys. If the previous node is implicitly keyed
          // we can continue to replace it without aborting even if it is not a text
          // node.
          var created = createFiberFromText('' + newChild, returnFiber.mode, expirationTime);
          created.return = returnFiber;
          return created;
        }
    
        if (typeof newChild === 'object' && newChild !== null) {
          switch (newChild.$$typeof) {
            case REACT_ELEMENT_TYPE:
              {
                var _created = createFiberFromElement(newChild, returnFiber.mode, expirationTime);
    
                _created.ref = coerceRef(returnFiber, null, newChild);
                _created.return = returnFiber;
                return _created;
              }
    
            case REACT_PORTAL_TYPE:
              {
                var _created2 = createFiberFromPortal(newChild, returnFiber.mode, expirationTime);
    
                _created2.return = returnFiber;
                return _created2;
              }
          }
    
          if (isArray(newChild) || getIteratorFn(newChild)) {
            var _created3 = createFiberFromFragment(newChild, returnFiber.mode, expirationTime, null);
    
            _created3.return = returnFiber;
            return _created3;
          }
    
          throwOnInvalidObjectType(returnFiber, newChild);
        }
    
        {
          if (typeof newChild === 'function') {
            warnOnFunctionType();
          }
        }
    
        return null;
      }
    
      function updateSlot(returnFiber, oldFiber, newChild, expirationTime) {
        // Update the fiber if the keys match, otherwise return null.
        var key = oldFiber !== null ? oldFiber.key : null;
    
        if (typeof newChild === 'string' || typeof newChild === 'number') {
          // Text nodes don't have keys. If the previous node is implicitly keyed
          // we can continue to replace it without aborting even if it is not a text
          // node.
          if (key !== null) {
            return null;
          }
    
          return updateTextNode(returnFiber, oldFiber, '' + newChild, expirationTime);
        }
    
        if (typeof newChild === 'object' && newChild !== null) {
          switch (newChild.$$typeof) {
            case REACT_ELEMENT_TYPE:
              {
                if (newChild.key === key) {
                  if (newChild.type === REACT_FRAGMENT_TYPE) {
                    return updateFragment(returnFiber, oldFiber, newChild.props.children, expirationTime, key);
                  }
    
                  return updateElement(returnFiber, oldFiber, newChild, expirationTime);
                } else {
                  return null;
                }
              }
    
            case REACT_PORTAL_TYPE:
              {
                if (newChild.key === key) {
                  return updatePortal(returnFiber, oldFiber, newChild, expirationTime);
                } else {
                  return null;
                }
              }
          }
    
          if (isArray(newChild) || getIteratorFn(newChild)) {
            if (key !== null) {
              return null;
            }
    
            return updateFragment(returnFiber, oldFiber, newChild, expirationTime, null);
          }
    
          throwOnInvalidObjectType(returnFiber, newChild);
        }
    
        {
          if (typeof newChild === 'function') {
            warnOnFunctionType();
          }
        }
    
        return null;
      }
    
      function updateFromMap(existingChildren, returnFiber, newIdx, newChild, expirationTime) {
        if (typeof newChild === 'string' || typeof newChild === 'number') {
          // Text nodes don't have keys, so we neither have to check the old nor
          // new node for the key. If both are text nodes, they match.
          var matchedFiber = existingChildren.get(newIdx) || null;
          return updateTextNode(returnFiber, matchedFiber, '' + newChild, expirationTime);
        }
    
        if (typeof newChild === 'object' && newChild !== null) {
          switch (newChild.$$typeof) {
            case REACT_ELEMENT_TYPE:
              {
                var _matchedFiber = existingChildren.get(newChild.key === null ? newIdx : newChild.key) || null;
    
                if (newChild.type === REACT_FRAGMENT_TYPE) {
                  return updateFragment(returnFiber, _matchedFiber, newChild.props.children, expirationTime, newChild.key);
                }
    
                return updateElement(returnFiber, _matchedFiber, newChild, expirationTime);
              }
    
            case REACT_PORTAL_TYPE:
              {
                var _matchedFiber2 = existingChildren.get(newChild.key === null ? newIdx : newChild.key) || null;
    
                return updatePortal(returnFiber, _matchedFiber2, newChild, expirationTime);
              }
          }
    
          if (isArray(newChild) || getIteratorFn(newChild)) {
            var _matchedFiber3 = existingChildren.get(newIdx) || null;
    
            return updateFragment(returnFiber, _matchedFiber3, newChild, expirationTime, null);
          }
    
          throwOnInvalidObjectType(returnFiber, newChild);
        }
    
        {
          if (typeof newChild === 'function') {
            warnOnFunctionType();
          }
        }
    
        return null;
      }
      /**
       * Warns if there is a duplicate or missing key
       */
    
    
      function warnOnInvalidKey(child, knownKeys) {
        {
          if (typeof child !== 'object' || child === null) {
            return knownKeys;
          }
    
          switch (child.$$typeof) {
            case REACT_ELEMENT_TYPE:
            case REACT_PORTAL_TYPE:
              warnForMissingKey(child);
              var key = child.key;
    
              if (typeof key !== 'string') {
                break;
              }
    
              if (knownKeys === null) {
                knownKeys = new Set();
                knownKeys.add(key);
                break;
              }
    
              if (!knownKeys.has(key)) {
                knownKeys.add(key);
                break;
              }
    
              warning$1(false, 'Encountered two children with the same key, `%s`. ' + 'Keys should be unique so that components maintain their identity ' + 'across updates. Non-unique keys may cause children to be ' + 'duplicated and/or omitted — the behavior is unsupported and ' + 'could change in a future version.', key);
              break;
    
            default:
              break;
          }
        }
    
        return knownKeys;
      }
    
      function reconcileChildrenArray(returnFiber, currentFirstChild, newChildren, expirationTime) {
        // This algorithm can't optimize by searching from both ends since we
        // don't have backpointers on fibers. I'm trying to see how far we can get
        // with that model. If it ends up not being worth the tradeoffs, we can
        // add it later.
        // Even with a two ended optimization, we'd want to optimize for the case
        // where there are few changes and brute force the comparison instead of
        // going for the Map. It'd like to explore hitting that path first in
        // forward-only mode and only go for the Map once we notice that we need
        // lots of look ahead. This doesn't handle reversal as well as two ended
        // search but that's unusual. Besides, for the two ended optimization to
        // work on Iterables, we'd need to copy the whole set.
        // In this first iteration, we'll just live with hitting the bad case
        // (adding everything to a Map) in for every insert/move.
        // If you change this code, also update reconcileChildrenIterator() which
        // uses the same algorithm.
        {
          // First, validate keys.
          var knownKeys = null;
    
          for (var i = 0; i < newChildren.length; i++) {
            var child = newChildren[i];
            knownKeys = warnOnInvalidKey(child, knownKeys);
          }
        }
    
        var resultingFirstChild = null;
        var previousNewFiber = null;
        var oldFiber = currentFirstChild;
        var lastPlacedIndex = 0;
        var newIdx = 0;
        var nextOldFiber = null;
    
        for (; oldFiber !== null && newIdx < newChildren.length; newIdx++) {
          if (oldFiber.index > newIdx) {
            nextOldFiber = oldFiber;
            oldFiber = null;
          } else {
            nextOldFiber = oldFiber.sibling;
          }
    
          var newFiber = updateSlot(returnFiber, oldFiber, newChildren[newIdx], expirationTime);
    
          if (newFiber === null) {
            // TODO: This breaks on empty slots like null children. That's
            // unfortunate because it triggers the slow path all the time. We need
            // a better way to communicate whether this was a miss or null,
            // boolean, undefined, etc.
            if (oldFiber === null) {
              oldFiber = nextOldFiber;
            }
    
            break;
          }
    
          if (shouldTrackSideEffects) {
            if (oldFiber && newFiber.alternate === null) {
              // We matched the slot, but we didn't reuse the existing fiber, so we
              // need to delete the existing child.
              deleteChild(returnFiber, oldFiber);
            }
          }
    
          lastPlacedIndex = placeChild(newFiber, lastPlacedIndex, newIdx);
    
          if (previousNewFiber === null) {
            // TODO: Move out of the loop. This only happens for the first run.
            resultingFirstChild = newFiber;
          } else {
            // TODO: Defer siblings if we're not at the right index for this slot.
            // I.e. if we had null values before, then we want to defer this
            // for each null value. However, we also don't want to call updateSlot
            // with the previous one.
            previousNewFiber.sibling = newFiber;
          }
    
          previousNewFiber = newFiber;
          oldFiber = nextOldFiber;
        }
    
        if (newIdx === newChildren.length) {
          // We've reached the end of the new children. We can delete the rest.
          deleteRemainingChildren(returnFiber, oldFiber);
          return resultingFirstChild;
        }
    
        if (oldFiber === null) {
          // If we don't have any more existing children we can choose a fast path
          // since the rest will all be insertions.
          for (; newIdx < newChildren.length; newIdx++) {
            var _newFiber = createChild(returnFiber, newChildren[newIdx], expirationTime);
    
            if (_newFiber === null) {
              continue;
            }
    
            lastPlacedIndex = placeChild(_newFiber, lastPlacedIndex, newIdx);
    
            if (previousNewFiber === null) {
              // TODO: Move out of the loop. This only happens for the first run.
              resultingFirstChild = _newFiber;
            } else {
              previousNewFiber.sibling = _newFiber;
            }
    
            previousNewFiber = _newFiber;
          }
    
          return resultingFirstChild;
        } // Add all children to a key map for quick lookups.
    
    
        var existingChildren = mapRemainingChildren(returnFiber, oldFiber); // Keep scanning and use the map to restore deleted items as moves.
    
        for (; newIdx < newChildren.length; newIdx++) {
          var _newFiber2 = updateFromMap(existingChildren, returnFiber, newIdx, newChildren[newIdx], expirationTime);
    
          if (_newFiber2 !== null) {
            if (shouldTrackSideEffects) {
              if (_newFiber2.alternate !== null) {
                // The new fiber is a work in progress, but if there exists a
                // current, that means that we reused the fiber. We need to delete
                // it from the child list so that we don't add it to the deletion
                // list.
                existingChildren.delete(_newFiber2.key === null ? newIdx : _newFiber2.key);
              }
            }
    
            lastPlacedIndex = placeChild(_newFiber2, lastPlacedIndex, newIdx);
    
            if (previousNewFiber === null) {
              resultingFirstChild = _newFiber2;
            } else {
              previousNewFiber.sibling = _newFiber2;
            }
    
            previousNewFiber = _newFiber2;
          }
        }
    
        if (shouldTrackSideEffects) {
          // Any existing children that weren't consumed above were deleted. We need
          // to add them to the deletion list.
          existingChildren.forEach(function (child) {
            return deleteChild(returnFiber, child);
          });
        }
    
        return resultingFirstChild;
      }
    
      function reconcileChildrenIterator(returnFiber, currentFirstChild, newChildrenIterable, expirationTime) {
        // This is the same implementation as reconcileChildrenArray(),
        // but using the iterator instead.
        var iteratorFn = getIteratorFn(newChildrenIterable);
    
        (function () {
          if (!(typeof iteratorFn === 'function')) {
            {
              throw ReactError(Error("An object is not an iterable. This error is likely caused by a bug in React. Please file an issue."));
            }
          }
        })();
    
        {
          // We don't support rendering Generators because it's a mutation.
          // See https://github.com/facebook/react/issues/12995
          if (typeof Symbol === 'function' && // $FlowFixMe Flow doesn't know about toStringTag
          newChildrenIterable[Symbol.toStringTag] === 'Generator') {
            !didWarnAboutGenerators ? warning$1(false, 'Using Generators as children is unsupported and will likely yield ' + 'unexpected results because enumerating a generator mutates it. ' + 'You may convert it to an array with `Array.from()` or the ' + '`[...spread]` operator before rendering. Keep in mind ' + 'you might need to polyfill these features for older browsers.') : void 0;
            didWarnAboutGenerators = true;
          } // Warn about using Maps as children
    
    
          if (newChildrenIterable.entries === iteratorFn) {
            !didWarnAboutMaps ? warning$1(false, 'Using Maps as children is unsupported and will likely yield ' + 'unexpected results. Convert it to a sequence/iterable of keyed ' + 'ReactElements instead.') : void 0;
            didWarnAboutMaps = true;
          } // First, validate keys.
          // We'll get a different iterator later for the main pass.
    
    
          var _newChildren = iteratorFn.call(newChildrenIterable);
    
          if (_newChildren) {
            var knownKeys = null;
    
            var _step = _newChildren.next();
    
            for (; !_step.done; _step = _newChildren.next()) {
              var child = _step.value;
              knownKeys = warnOnInvalidKey(child, knownKeys);
            }
          }
        }
    
        var newChildren = iteratorFn.call(newChildrenIterable);
    
        (function () {
          if (!(newChildren != null)) {
            {
              throw ReactError(Error("An iterable object provided no iterator."));
            }
          }
        })();
    
        var resultingFirstChild = null;
        var previousNewFiber = null;
        var oldFiber = currentFirstChild;
        var lastPlacedIndex = 0;
        var newIdx = 0;
        var nextOldFiber = null;
        var step = newChildren.next();
    
        for (; oldFiber !== null && !step.done; newIdx++, step = newChildren.next()) {
          if (oldFiber.index > newIdx) {
            nextOldFiber = oldFiber;
            oldFiber = null;
          } else {
            nextOldFiber = oldFiber.sibling;
          }
    
          var newFiber = updateSlot(returnFiber, oldFiber, step.value, expirationTime);
    
          if (newFiber === null) {
            // TODO: This breaks on empty slots like null children. That's
            // unfortunate because it triggers the slow path all the time. We need
            // a better way to communicate whether this was a miss or null,
            // boolean, undefined, etc.
            if (oldFiber === null) {
              oldFiber = nextOldFiber;
            }
    
            break;
          }
    
          if (shouldTrackSideEffects) {
            if (oldFiber && newFiber.alternate === null) {
              // We matched the slot, but we didn't reuse the existing fiber, so we
              // need to delete the existing child.
              deleteChild(returnFiber, oldFiber);
            }
          }
    
          lastPlacedIndex = placeChild(newFiber, lastPlacedIndex, newIdx);
    
          if (previousNewFiber === null) {
            // TODO: Move out of the loop. This only happens for the first run.
            resultingFirstChild = newFiber;
          } else {
            // TODO: Defer siblings if we're not at the right index for this slot.
            // I.e. if we had null values before, then we want to defer this
            // for each null value. However, we also don't want to call updateSlot
            // with the previous one.
            previousNewFiber.sibling = newFiber;
          }
    
          previousNewFiber = newFiber;
          oldFiber = nextOldFiber;
        }
    
        if (step.done) {
          // We've reached the end of the new children. We can delete the rest.
          deleteRemainingChildren(returnFiber, oldFiber);
          return resultingFirstChild;
        }
    
        if (oldFiber === null) {
          // If we don't have any more existing children we can choose a fast path
          // since the rest will all be insertions.
          for (; !step.done; newIdx++, step = newChildren.next()) {
            var _newFiber3 = createChild(returnFiber, step.value, expirationTime);
    
            if (_newFiber3 === null) {
              continue;
            }
    
            lastPlacedIndex = placeChild(_newFiber3, lastPlacedIndex, newIdx);
    
            if (previousNewFiber === null) {
              // TODO: Move out of the loop. This only happens for the first run.
              resultingFirstChild = _newFiber3;
            } else {
              previousNewFiber.sibling = _newFiber3;
            }
    
            previousNewFiber = _newFiber3;
          }
    
          return resultingFirstChild;
        } // Add all children to a key map for quick lookups.
    
    
        var existingChildren = mapRemainingChildren(returnFiber, oldFiber); // Keep scanning and use the map to restore deleted items as moves.
    
        for (; !step.done; newIdx++, step = newChildren.next()) {
          var _newFiber4 = updateFromMap(existingChildren, returnFiber, newIdx, step.value, expirationTime);
    
          if (_newFiber4 !== null) {
            if (shouldTrackSideEffects) {
              if (_newFiber4.alternate !== null) {
                // The new fiber is a work in progress, but if there exists a
                // current, that means that we reused the fiber. We need to delete
                // it from the child list so that we don't add it to the deletion
                // list.
                existingChildren.delete(_newFiber4.key === null ? newIdx : _newFiber4.key);
              }
            }
    
            lastPlacedIndex = placeChild(_newFiber4, lastPlacedIndex, newIdx);
    
            if (previousNewFiber === null) {
              resultingFirstChild = _newFiber4;
            } else {
              previousNewFiber.sibling = _newFiber4;
            }
    
            previousNewFiber = _newFiber4;
          }
        }
    
        if (shouldTrackSideEffects) {
          // Any existing children that weren't consumed above were deleted. We need
          // to add them to the deletion list.
          existingChildren.forEach(function (child) {
            return deleteChild(returnFiber, child);
          });
        }
    
        return resultingFirstChild;
      }
    
      function reconcileSingleTextNode(returnFiber, currentFirstChild, textContent, expirationTime) {
        // There's no need to check for keys on text nodes since we don't have a
        // way to define them.
        if (currentFirstChild !== null && currentFirstChild.tag === HostText) {
          // We already have an existing node so let's just update it and delete
          // the rest.
          deleteRemainingChildren(returnFiber, currentFirstChild.sibling);
          var existing = useFiber(currentFirstChild, textContent, expirationTime);
          existing.return = returnFiber;
          return existing;
        } // The existing first child is not a text node so we need to create one
        // and delete the existing ones.
    
    
        deleteRemainingChildren(returnFiber, currentFirstChild);
        var created = createFiberFromText(textContent, returnFiber.mode, expirationTime);
        created.return = returnFiber;
        return created;
      }
    
      function reconcileSingleElement(returnFiber, currentFirstChild, element, expirationTime) {
        var key = element.key;
        var child = currentFirstChild;
    
        while (child !== null) {
          // TODO: If key === null and child.key === null, then this only applies to
          // the first item in the list.
          if (child.key === key) {
            if (child.tag === Fragment ? element.type === REACT_FRAGMENT_TYPE : child.elementType === element.type || ( // Keep this check inline so it only runs on the false path:
            isCompatibleFamilyForHotReloading(child, element))) {
              deleteRemainingChildren(returnFiber, child.sibling);
              var existing = useFiber(child, element.type === REACT_FRAGMENT_TYPE ? element.props.children : element.props, expirationTime);
              existing.ref = coerceRef(returnFiber, child, element);
              existing.return = returnFiber;
    
              {
                existing._debugSource = element._source;
                existing._debugOwner = element._owner;
              }
    
              return existing;
            } else {
              deleteRemainingChildren(returnFiber, child);
              break;
            }
          } else {
            deleteChild(returnFiber, child);
          }
    
          child = child.sibling;
        }
    
        if (element.type === REACT_FRAGMENT_TYPE) {
          var created = createFiberFromFragment(element.props.children, returnFiber.mode, expirationTime, element.key);
          created.return = returnFiber;
          return created;
        } else {
          var _created4 = createFiberFromElement(element, returnFiber.mode, expirationTime);
    
          _created4.ref = coerceRef(returnFiber, currentFirstChild, element);
          _created4.return = returnFiber;
          return _created4;
        }
      }
    
      function reconcileSinglePortal(returnFiber, currentFirstChild, portal, expirationTime) {
        var key = portal.key;
        var child = currentFirstChild;
    
        while (child !== null) {
          // TODO: If key === null and child.key === null, then this only applies to
          // the first item in the list.
          if (child.key === key) {
            if (child.tag === HostPortal && child.stateNode.containerInfo === portal.containerInfo && child.stateNode.implementation === portal.implementation) {
              deleteRemainingChildren(returnFiber, child.sibling);
              var existing = useFiber(child, portal.children || [], expirationTime);
              existing.return = returnFiber;
              return existing;
            } else {
              deleteRemainingChildren(returnFiber, child);
              break;
            }
          } else {
            deleteChild(returnFiber, child);
          }
    
          child = child.sibling;
        }
    
        var created = createFiberFromPortal(portal, returnFiber.mode, expirationTime);
        created.return = returnFiber;
        return created;
      } // This API will tag the children with the side-effect of the reconciliation
      // itself. They will be added to the side-effect list as we pass through the
      // children and the parent.
    
    
      function reconcileChildFibers(returnFiber, currentFirstChild, newChild, expirationTime) {
        // This function is not recursive.
        // If the top level item is an array, we treat it as a set of children,
        // not as a fragment. Nested arrays on the other hand will be treated as
        // fragment nodes. Recursion happens at the normal flow.
        // Handle top level unkeyed fragments as if they were arrays.
        // This leads to an ambiguity between <>{[...]}</> and <>...</>.
        // We treat the ambiguous cases above the same.
        var isUnkeyedTopLevelFragment = typeof newChild === 'object' && newChild !== null && newChild.type === REACT_FRAGMENT_TYPE && newChild.key === null;
    
        if (isUnkeyedTopLevelFragment) {
          newChild = newChild.props.children;
        } // Handle object types
    
    
        var isObject = typeof newChild === 'object' && newChild !== null;
    
        if (isObject) {
          switch (newChild.$$typeof) {
            case REACT_ELEMENT_TYPE:
              return placeSingleChild(reconcileSingleElement(returnFiber, currentFirstChild, newChild, expirationTime));
    
            case REACT_PORTAL_TYPE:
              return placeSingleChild(reconcileSinglePortal(returnFiber, currentFirstChild, newChild, expirationTime));
          }
        }
    
        if (typeof newChild === 'string' || typeof newChild === 'number') {
          return placeSingleChild(reconcileSingleTextNode(returnFiber, currentFirstChild, '' + newChild, expirationTime));
        }
    
        if (isArray(newChild)) {
          return reconcileChildrenArray(returnFiber, currentFirstChild, newChild, expirationTime);
        }
    
        if (getIteratorFn(newChild)) {
          return reconcileChildrenIterator(returnFiber, currentFirstChild, newChild, expirationTime);
        }
    
        if (isObject) {
          throwOnInvalidObjectType(returnFiber, newChild);
        }
    
        {
          if (typeof newChild === 'function') {
            warnOnFunctionType();
          }
        }
    
        if (typeof newChild === 'undefined' && !isUnkeyedTopLevelFragment) {
          // If the new child is undefined, and the return fiber is a composite
          // component, throw an error. If Fiber return types are disabled,
          // we already threw above.
          switch (returnFiber.tag) {
            case ClassComponent:
              {
                {
                  var instance = returnFiber.stateNode;
    
                  if (instance.render._isMockFunction) {
                    // We allow auto-mocks to proceed as if they're returning null.
                    break;
                  }
                }
              }
            // Intentionally fall through to the next case, which handles both
            // functions and classes
            // eslint-disable-next-lined no-fallthrough
    
            case FunctionComponent:
              {
                var Component = returnFiber.type;
    
                (function () {
                  {
                    {
                      throw ReactError(Error((Component.displayName || Component.name || 'Component') + "(...): Nothing was returned from render. This usually means a return statement is missing. Or, to render nothing, return null."));
                    }
                  }
                })();
              }
          }
        } // Remaining cases are all treated as empty.
    
    
        return deleteRemainingChildren(returnFiber, currentFirstChild);
      }
    
      return reconcileChildFibers;
    }
    
    var reconcileChildFibers = ChildReconciler(true);
    var mountChildFibers = ChildReconciler(false);
    function cloneChildFibers(current$$1, workInProgress) {
      (function () {
        if (!(current$$1 === null || workInProgress.child === current$$1.child)) {
          {
            throw ReactError(Error("Resuming work not yet implemented."));
          }
        }
      })();
    
      if (workInProgress.child === null) {
        return;
      }
    
      var currentChild = workInProgress.child;
      var newChild = createWorkInProgress(currentChild, currentChild.pendingProps, currentChild.expirationTime);
      workInProgress.child = newChild;
      newChild.return = workInProgress;
    
      while (currentChild.sibling !== null) {
        currentChild = currentChild.sibling;
        newChild = newChild.sibling = createWorkInProgress(currentChild, currentChild.pendingProps, currentChild.expirationTime);
        newChild.return = workInProgress;
      }
    
      newChild.sibling = null;
    } // Reset a workInProgress child set to prepare it for a second pass.
    
    function resetChildFibers(workInProgress, renderExpirationTime) {
      var child = workInProgress.child;
    
      while (child !== null) {
        resetWorkInProgress(child, renderExpirationTime);
        child = child.sibling;
      }
    }
    
    var NO_CONTEXT = {};
    var contextStackCursor$1 = createCursor(NO_CONTEXT);
    var contextFiberStackCursor = createCursor(NO_CONTEXT);
    var rootInstanceStackCursor = createCursor(NO_CONTEXT);
    
    function requiredContext(c) {
      (function () {
        if (!(c !== NO_CONTEXT)) {
          {
            throw ReactError(Error("Expected host context to exist. This error is likely caused by a bug in React. Please file an issue."));
          }
        }
      })();
    
      return c;
    }
    
    function getRootHostContainer() {
      var rootInstance = requiredContext(rootInstanceStackCursor.current);
      return rootInstance;
    }
    
    function pushHostContainer(fiber, nextRootInstance) {
      // Push current root instance onto the stack;
      // This allows us to reset root when portals are popped.
      push(rootInstanceStackCursor, nextRootInstance, fiber); // Track the context and the Fiber that provided it.
      // This enables us to pop only Fibers that provide unique contexts.
    
      push(contextFiberStackCursor, fiber, fiber); // Finally, we need to push the host context to the stack.
      // However, we can't just call getRootHostContext() and push it because
      // we'd have a different number of entries on the stack depending on
      // whether getRootHostContext() throws somewhere in renderer code or not.
      // So we push an empty value first. This lets us safely unwind on errors.
    
      push(contextStackCursor$1, NO_CONTEXT, fiber);
      var nextRootContext = getRootHostContext(nextRootInstance); // Now that we know this function doesn't throw, replace it.
    
      pop(contextStackCursor$1, fiber);
      push(contextStackCursor$1, nextRootContext, fiber);
    }
    
    function popHostContainer(fiber) {
      pop(contextStackCursor$1, fiber);
      pop(contextFiberStackCursor, fiber);
      pop(rootInstanceStackCursor, fiber);
    }
    
    function getHostContext() {
      var context = requiredContext(contextStackCursor$1.current);
      return context;
    }
    
    function pushHostContext(fiber) {
      var rootInstance = requiredContext(rootInstanceStackCursor.current);
      var context = requiredContext(contextStackCursor$1.current);
      var nextContext = getChildHostContext(context, fiber.type, rootInstance); // Don't push this Fiber's context unless it's unique.
    
      if (context === nextContext) {
        return;
      } // Track the context and the Fiber that provided it.
      // This enables us to pop only Fibers that provide unique contexts.
    
    
      push(contextFiberStackCursor, fiber, fiber);
      push(contextStackCursor$1, nextContext, fiber);
    }
    
    function popHostContext(fiber) {
      // Do not pop unless this Fiber provided the current context.
      // pushHostContext() only pushes Fibers that provide unique contexts.
      if (contextFiberStackCursor.current !== fiber) {
        return;
      }
    
      pop(contextStackCursor$1, fiber);
      pop(contextFiberStackCursor, fiber);
    }
    
    var DefaultSuspenseContext = 0; // The Suspense Context is split into two parts. The lower bits is
    // inherited deeply down the subtree. The upper bits only affect
    // this immediate suspense boundary and gets reset each new
    // boundary or suspense list.
    
    var SubtreeSuspenseContextMask = 1; // Subtree Flags:
    // InvisibleParentSuspenseContext indicates that one of our parent Suspense
    // boundaries is not currently showing visible main content.
    // Either because it is already showing a fallback or is not mounted at all.
    // We can use this to determine if it is desirable to trigger a fallback at
    // the parent. If not, then we might need to trigger undesirable boundaries
    // and/or suspend the commit to avoid hiding the parent content.
    
    var InvisibleParentSuspenseContext = 1; // Shallow Flags:
    // ForceSuspenseFallback can be used by SuspenseList to force newly added
    // items into their fallback state during one of the render passes.
    
    var ForceSuspenseFallback = 2;
    var suspenseStackCursor = createCursor(DefaultSuspenseContext);
    function hasSuspenseContext(parentContext, flag) {
      return (parentContext & flag) !== 0;
    }
    function setDefaultShallowSuspenseContext(parentContext) {
      return parentContext & SubtreeSuspenseContextMask;
    }
    function setShallowSuspenseContext(parentContext, shallowContext) {
      return parentContext & SubtreeSuspenseContextMask | shallowContext;
    }
    function addSubtreeSuspenseContext(parentContext, subtreeContext) {
      return parentContext | subtreeContext;
    }
    function pushSuspenseContext(fiber, newContext) {
      push(suspenseStackCursor, newContext, fiber);
    }
    function popSuspenseContext(fiber) {
      pop(suspenseStackCursor, fiber);
    }
    
    function shouldCaptureSuspense(workInProgress, hasInvisibleParent) {
      // If it was the primary children that just suspended, capture and render the
      // fallback. Otherwise, don't capture and bubble to the next boundary.
      var nextState = workInProgress.memoizedState;
    
      if (nextState !== null) {
        if (nextState.dehydrated !== null) {
          // A dehydrated boundary always captures.
          return true;
        }
    
        return false;
      }
    
      var props = workInProgress.memoizedProps; // In order to capture, the Suspense component must have a fallback prop.
    
      if (props.fallback === undefined) {
        return false;
      } // Regular boundaries always capture.
    
    
      if (props.unstable_avoidThisFallback !== true) {
        return true;
      } // If it's a boundary we should avoid, then we prefer to bubble up to the
      // parent boundary if it is currently invisible.
    
    
      if (hasInvisibleParent) {
        return false;
      } // If the parent is not able to handle it, we must handle it.
    
    
      return true;
    }
    function findFirstSuspended(row) {
      var node = row;
    
      while (node !== null) {
        if (node.tag === SuspenseComponent) {
          var state = node.memoizedState;
    
          if (state !== null) {
            var dehydrated = state.dehydrated;
    
            if (dehydrated === null || isSuspenseInstancePending(dehydrated) || isSuspenseInstanceFallback(dehydrated)) {
              return node;
            }
          }
        } else if (node.tag === SuspenseListComponent && // revealOrder undefined can't be trusted because it don't
        // keep track of whether it suspended or not.
        node.memoizedProps.revealOrder !== undefined) {
          var didSuspend = (node.effectTag & DidCapture) !== NoEffect;
    
          if (didSuspend) {
            return node;
          }
        } else if (node.child !== null) {
          node.child.return = node;
          node = node.child;
          continue;
        }
    
        if (node === row) {
          return null;
        }
    
        while (node.sibling === null) {
          if (node.return === null || node.return === row) {
            return null;
          }
    
          node = node.return;
        }
    
        node.sibling.return = node.return;
        node = node.sibling;
      }
    
      return null;
    }
    
    var emptyObject = {};
    var isArray$2 = Array.isArray;
    function createResponderInstance(responder, responderProps, responderState, fiber) {
      return {
        fiber: fiber,
        props: responderProps,
        responder: responder,
        rootEventTypes: null,
        state: responderState
      };
    }
    
    function mountEventResponder$1(responder, responderProps, fiber, respondersMap, rootContainerInstance) {
      var responderState = emptyObject;
      var getInitialState = responder.getInitialState;
    
      if (getInitialState !== null) {
        responderState = getInitialState(responderProps);
      }
    
      var responderInstance = createResponderInstance(responder, responderProps, responderState, fiber);
    
      if (!rootContainerInstance) {
        var node = fiber;
    
        while (node !== null) {
          var tag = node.tag;
    
          if (tag === HostComponent) {
            rootContainerInstance = node.stateNode;
            break;
          } else if (tag === HostRoot) {
            rootContainerInstance = node.stateNode.containerInfo;
            break;
          }
    
          node = node.return;
        }
      }
    
      mountResponderInstance(responder, responderInstance, responderProps, responderState, rootContainerInstance);
      respondersMap.set(responder, responderInstance);
    }
    
    function updateEventListener(listener, fiber, visistedResponders, respondersMap, rootContainerInstance) {
      var responder;
      var props;
    
      if (listener) {
        responder = listener.responder;
        props = listener.props;
      }
    
      (function () {
        if (!(responder && responder.$$typeof === REACT_RESPONDER_TYPE)) {
          {
            throw ReactError(Error("An invalid value was used as an event listener. Expect one or many event listeners created via React.unstable_useResponder()."));
          }
        }
      })();
    
      var listenerProps = props;
    
      if (visistedResponders.has(responder)) {
        // show warning
        {
          warning$1(false, 'Duplicate event responder "%s" found in event listeners. ' + 'Event listeners passed to elements cannot use the same event responder more than once.', responder.displayName);
        }
    
        return;
      }
    
      visistedResponders.add(responder);
      var responderInstance = respondersMap.get(responder);
    
      if (responderInstance === undefined) {
        // Mount (happens in either complete or commit phase)
        mountEventResponder$1(responder, listenerProps, fiber, respondersMap, rootContainerInstance);
      } else {
        // Update (happens during commit phase only)
        responderInstance.props = listenerProps;
        responderInstance.fiber = fiber;
      }
    }
    
    function updateEventListeners(listeners, fiber, rootContainerInstance) {
      var visistedResponders = new Set();
      var dependencies = fiber.dependencies;
    
      if (listeners != null) {
        if (dependencies === null) {
          dependencies = fiber.dependencies = {
            expirationTime: NoWork,
            firstContext: null,
            responders: new Map()
          };
        }
    
        var respondersMap = dependencies.responders;
    
        if (respondersMap === null) {
          respondersMap = new Map();
        }
    
        if (isArray$2(listeners)) {
          for (var i = 0, length = listeners.length; i < length; i++) {
            var listener = listeners[i];
            updateEventListener(listener, fiber, visistedResponders, respondersMap, rootContainerInstance);
          }
        } else {
          updateEventListener(listeners, fiber, visistedResponders, respondersMap, rootContainerInstance);
        }
      }
    
      if (dependencies !== null) {
        var _respondersMap = dependencies.responders;
    
        if (_respondersMap !== null) {
          // Unmount
          var mountedResponders = Array.from(_respondersMap.keys());
    
          for (var _i = 0, _length = mountedResponders.length; _i < _length; _i++) {
            var mountedResponder = mountedResponders[_i];
    
            if (!visistedResponders.has(mountedResponder)) {
              var responderInstance = _respondersMap.get(mountedResponder);
    
              unmountResponderInstance(responderInstance);
    
              _respondersMap.delete(mountedResponder);
            }
          }
        }
      }
    }
    function createResponderListener(responder, props) {
      var eventResponderListener = {
        responder: responder,
        props: props
      };
    
      {
        Object.freeze(eventResponderListener);
      }
    
      return eventResponderListener;
    }
    
    var NoEffect$1 =
    /*             */
    0;
    var UnmountSnapshot =
    /*      */
    2;
    var UnmountMutation =
    /*      */
    4;
    var MountMutation =
    /*        */
    8;
    var UnmountLayout =
    /*        */
    16;
    var MountLayout =
    /*          */
    32;
    var MountPassive =
    /*         */
    64;
    var UnmountPassive =
    /*       */
    128;
    
    var ReactCurrentDispatcher$1 = ReactSharedInternals.ReactCurrentDispatcher;
    var didWarnAboutMismatchedHooksForComponent;
    
    {
      didWarnAboutMismatchedHooksForComponent = new Set();
    }
    
    // These are set right before calling the component.
    var renderExpirationTime$1 = NoWork; // The work-in-progress fiber. I've named it differently to distinguish it from
    // the work-in-progress hook.
    
    var currentlyRenderingFiber$1 = null; // Hooks are stored as a linked list on the fiber's memoizedState field. The
    // current hook list is the list that belongs to the current fiber. The
    // work-in-progress hook list is a new list that will be added to the
    // work-in-progress fiber.
    
    var currentHook = null;
    var nextCurrentHook = null;
    var firstWorkInProgressHook = null;
    var workInProgressHook = null;
    var nextWorkInProgressHook = null;
    var remainingExpirationTime = NoWork;
    var componentUpdateQueue = null;
    var sideEffectTag = 0; // Updates scheduled during render will trigger an immediate re-render at the
    // end of the current pass. We can't store these updates on the normal queue,
    // because if the work is aborted, they should be discarded. Because this is
    // a relatively rare case, we also don't want to add an additional field to
    // either the hook or queue object types. So we store them in a lazily create
    // map of queue -> render-phase updates, which are discarded once the component
    // completes without re-rendering.
    // Whether an update was scheduled during the currently executing render pass.
    
    var didScheduleRenderPhaseUpdate = false; // Lazily created map of render-phase updates
    
    var renderPhaseUpdates = null; // Counter to prevent infinite loops.
    
    var numberOfReRenders = 0;
    var RE_RENDER_LIMIT = 25; // In DEV, this is the name of the currently executing primitive hook
    
    var currentHookNameInDev = null; // In DEV, this list ensures that hooks are called in the same order between renders.
    // The list stores the order of hooks used during the initial render (mount).
    // Subsequent renders (updates) reference this list.
    
    var hookTypesDev = null;
    var hookTypesUpdateIndexDev = -1; // In DEV, this tracks whether currently rendering component needs to ignore
    // the dependencies for Hooks that need them (e.g. useEffect or useMemo).
    // When true, such Hooks will always be "remounted". Only used during hot reload.
    
    var ignorePreviousDependencies = false;
    
    function mountHookTypesDev() {
      {
        var hookName = currentHookNameInDev;
    
        if (hookTypesDev === null) {
          hookTypesDev = [hookName];
        } else {
          hookTypesDev.push(hookName);
        }
      }
    }
    
    function updateHookTypesDev() {
      {
        var hookName = currentHookNameInDev;
    
        if (hookTypesDev !== null) {
          hookTypesUpdateIndexDev++;
    
          if (hookTypesDev[hookTypesUpdateIndexDev] !== hookName) {
            warnOnHookMismatchInDev(hookName);
          }
        }
      }
    }
    
    function checkDepsAreArrayDev(deps) {
      {
        if (deps !== undefined && deps !== null && !Array.isArray(deps)) {
          // Verify deps, but only on mount to avoid extra checks.
          // It's unlikely their type would change as usually you define them inline.
          warning$1(false, '%s received a final argument that is not an array (instead, received `%s`). When ' + 'specified, the final argument must be an array.', currentHookNameInDev, typeof deps);
        }
      }
    }
    
    function warnOnHookMismatchInDev(currentHookName) {
      {
        var componentName = getComponentName(currentlyRenderingFiber$1.type);
    
        if (!didWarnAboutMismatchedHooksForComponent.has(componentName)) {
          didWarnAboutMismatchedHooksForComponent.add(componentName);
    
          if (hookTypesDev !== null) {
            var table = '';
            var secondColumnStart = 30;
    
            for (var i = 0; i <= hookTypesUpdateIndexDev; i++) {
              var oldHookName = hookTypesDev[i];
              var newHookName = i === hookTypesUpdateIndexDev ? currentHookName : oldHookName;
              var row = i + 1 + ". " + oldHookName; // Extra space so second column lines up
              // lol @ IE not supporting String#repeat
    
              while (row.length < secondColumnStart) {
                row += ' ';
              }
    
              row += newHookName + '\n';
              table += row;
            }
    
            warning$1(false, 'React has detected a change in the order of Hooks called by %s. ' + 'This will lead to bugs and errors if not fixed. ' + 'For more information, read the Rules of Hooks: https://fb.me/rules-of-hooks\n\n' + '   Previous render            Next render\n' + '   ------------------------------------------------------\n' + '%s' + '   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n', componentName, table);
          }
        }
      }
    }
    
    function throwInvalidHookError() {
      (function () {
        {
          {
            throw ReactError(Error("Invalid hook call. Hooks can only be called inside of the body of a function component. This could happen for one of the following reasons:\n1. You might have mismatching versions of React and the renderer (such as React DOM)\n2. You might be breaking the Rules of Hooks\n3. You might have more than one copy of React in the same app\nSee https://fb.me/react-invalid-hook-call for tips about how to debug and fix this problem."));
          }
        }
      })();
    }
    
    function areHookInputsEqual(nextDeps, prevDeps) {
      {
        if (ignorePreviousDependencies) {
          // Only true when this component is being hot reloaded.
          return false;
        }
      }
    
      if (prevDeps === null) {
        {
          warning$1(false, '%s received a final argument during this render, but not during ' + 'the previous render. Even though the final argument is optional, ' + 'its type cannot change between renders.', currentHookNameInDev);
        }
    
        return false;
      }
    
      {
        // Don't bother comparing lengths in prod because these arrays should be
        // passed inline.
        if (nextDeps.length !== prevDeps.length) {
          warning$1(false, 'The final argument passed to %s changed size between renders. The ' + 'order and size of this array must remain constant.\n\n' + 'Previous: %s\n' + 'Incoming: %s', currentHookNameInDev, "[" + prevDeps.join(', ') + "]", "[" + nextDeps.join(', ') + "]");
        }
      }
    
      for (var i = 0; i < prevDeps.length && i < nextDeps.length; i++) {
        if (is$1(nextDeps[i], prevDeps[i])) {
          continue;
        }
    
        return false;
      }
    
      return true;
    }
    
    function renderWithHooks(current, workInProgress, Component, props, refOrContext, nextRenderExpirationTime) {
      renderExpirationTime$1 = nextRenderExpirationTime;
      currentlyRenderingFiber$1 = workInProgress;
      nextCurrentHook = current !== null ? current.memoizedState : null;
    
      {
        hookTypesDev = current !== null ? current._debugHookTypes : null;
        hookTypesUpdateIndexDev = -1; // Used for hot reloading:
    
        ignorePreviousDependencies = current !== null && current.type !== workInProgress.type;
      } // The following should have already been reset
      // currentHook = null;
      // workInProgressHook = null;
      // remainingExpirationTime = NoWork;
      // componentUpdateQueue = null;
      // didScheduleRenderPhaseUpdate = false;
      // renderPhaseUpdates = null;
      // numberOfReRenders = 0;
      // sideEffectTag = 0;
      // TODO Warn if no hooks are used at all during mount, then some are used during update.
      // Currently we will identify the update render as a mount because nextCurrentHook === null.
      // This is tricky because it's valid for certain types of components (e.g. React.lazy)
      // Using nextCurrentHook to differentiate between mount/update only works if at least one stateful hook is used.
      // Non-stateful hooks (e.g. context) don't get added to memoizedState,
      // so nextCurrentHook would be null during updates and mounts.
    
    
      {
        if (nextCurrentHook !== null) {
          ReactCurrentDispatcher$1.current = HooksDispatcherOnUpdateInDEV;
        } else if (hookTypesDev !== null) {
          // This dispatcher handles an edge case where a component is updating,
          // but no stateful hooks have been used.
          // We want to match the production code behavior (which will use HooksDispatcherOnMount),
          // but with the extra DEV validation to ensure hooks ordering hasn't changed.
          // This dispatcher does that.
          ReactCurrentDispatcher$1.current = HooksDispatcherOnMountWithHookTypesInDEV;
        } else {
          ReactCurrentDispatcher$1.current = HooksDispatcherOnMountInDEV;
        }
      }
    
      var children = Component(props, refOrContext);
    
      if (didScheduleRenderPhaseUpdate) {
        do {
          didScheduleRenderPhaseUpdate = false;
          numberOfReRenders += 1;
    
          {
            // Even when hot reloading, allow dependencies to stabilize
            // after first render to prevent infinite render phase updates.
            ignorePreviousDependencies = false;
          } // Start over from the beginning of the list
    
    
          nextCurrentHook = current !== null ? current.memoizedState : null;
          nextWorkInProgressHook = firstWorkInProgressHook;
          currentHook = null;
          workInProgressHook = null;
          componentUpdateQueue = null;
    
          {
            // Also validate hook order for cascading updates.
            hookTypesUpdateIndexDev = -1;
          }
    
          ReactCurrentDispatcher$1.current = HooksDispatcherOnUpdateInDEV;
          children = Component(props, refOrContext);
        } while (didScheduleRenderPhaseUpdate);
    
        renderPhaseUpdates = null;
        numberOfReRenders = 0;
      } // We can assume the previous dispatcher is always this one, since we set it
      // at the beginning of the render phase and there's no re-entrancy.
    
    
      ReactCurrentDispatcher$1.current = ContextOnlyDispatcher;
      var renderedWork = currentlyRenderingFiber$1;
      renderedWork.memoizedState = firstWorkInProgressHook;
      renderedWork.expirationTime = remainingExpirationTime;
      renderedWork.updateQueue = componentUpdateQueue;
      renderedWork.effectTag |= sideEffectTag;
    
      {
        renderedWork._debugHookTypes = hookTypesDev;
      } // This check uses currentHook so that it works the same in DEV and prod bundles.
      // hookTypesDev could catch more cases (e.g. context) but only in DEV bundles.
    
    
      var didRenderTooFewHooks = currentHook !== null && currentHook.next !== null;
      renderExpirationTime$1 = NoWork;
      currentlyRenderingFiber$1 = null;
      currentHook = null;
      nextCurrentHook = null;
      firstWorkInProgressHook = null;
      workInProgressHook = null;
      nextWorkInProgressHook = null;
    
      {
        currentHookNameInDev = null;
        hookTypesDev = null;
        hookTypesUpdateIndexDev = -1;
      }
    
      remainingExpirationTime = NoWork;
      componentUpdateQueue = null;
      sideEffectTag = 0; // These were reset above
      // didScheduleRenderPhaseUpdate = false;
      // renderPhaseUpdates = null;
      // numberOfReRenders = 0;
    
      (function () {
        if (!!didRenderTooFewHooks) {
          {
            throw ReactError(Error("Rendered fewer hooks than expected. This may be caused by an accidental early return statement."));
          }
        }
      })();
    
      return children;
    }
    function bailoutHooks(current, workInProgress, expirationTime) {
      workInProgress.updateQueue = current.updateQueue;
      workInProgress.effectTag &= ~(Passive | Update);
    
      if (current.expirationTime <= expirationTime) {
        current.expirationTime = NoWork;
      }
    }
    function resetHooks() {
      // We can assume the previous dispatcher is always this one, since we set it
      // at the beginning of the render phase and there's no re-entrancy.
      ReactCurrentDispatcher$1.current = ContextOnlyDispatcher; // This is used to reset the state of this module when a component throws.
      // It's also called inside mountIndeterminateComponent if we determine the
      // component is a module-style component.
    
      renderExpirationTime$1 = NoWork;
      currentlyRenderingFiber$1 = null;
      currentHook = null;
      nextCurrentHook = null;
      firstWorkInProgressHook = null;
      workInProgressHook = null;
      nextWorkInProgressHook = null;
    
      {
        hookTypesDev = null;
        hookTypesUpdateIndexDev = -1;
        currentHookNameInDev = null;
      }
    
      remainingExpirationTime = NoWork;
      componentUpdateQueue = null;
      sideEffectTag = 0;
      didScheduleRenderPhaseUpdate = false;
      renderPhaseUpdates = null;
      numberOfReRenders = 0;
    }
    
    function mountWorkInProgressHook() {
      var hook = {
        memoizedState: null,
        baseState: null,
        queue: null,
        baseUpdate: null,
        next: null
      };
    
      if (workInProgressHook === null) {
        // This is the first hook in the list
        firstWorkInProgressHook = workInProgressHook = hook;
      } else {
        // Append to the end of the list
        workInProgressHook = workInProgressHook.next = hook;
      }
    
      return workInProgressHook;
    }
    
    function updateWorkInProgressHook() {
      // This function is used both for updates and for re-renders triggered by a
      // render phase update. It assumes there is either a current hook we can
      // clone, or a work-in-progress hook from a previous render pass that we can
      // use as a base. When we reach the end of the base list, we must switch to
      // the dispatcher used for mounts.
      if (nextWorkInProgressHook !== null) {
        // There's already a work-in-progress. Reuse it.
        workInProgressHook = nextWorkInProgressHook;
        nextWorkInProgressHook = workInProgressHook.next;
        currentHook = nextCurrentHook;
        nextCurrentHook = currentHook !== null ? currentHook.next : null;
      } else {
        // Clone from the current hook.
        (function () {
          if (!(nextCurrentHook !== null)) {
            {
              throw ReactError(Error("Rendered more hooks than during the previous render."));
            }
          }
        })();
    
        currentHook = nextCurrentHook;
        var newHook = {
          memoizedState: currentHook.memoizedState,
          baseState: currentHook.baseState,
          queue: currentHook.queue,
          baseUpdate: currentHook.baseUpdate,
          next: null
        };
    
        if (workInProgressHook === null) {
          // This is the first hook in the list.
          workInProgressHook = firstWorkInProgressHook = newHook;
        } else {
          // Append to the end of the list.
          workInProgressHook = workInProgressHook.next = newHook;
        }
    
        nextCurrentHook = currentHook.next;
      }
    
      return workInProgressHook;
    }
    
    function createFunctionComponentUpdateQueue() {
      return {
        lastEffect: null
      };
    }
    
    function basicStateReducer(state, action) {
      return typeof action === 'function' ? action(state) : action;
    }
    
    function mountReducer(reducer, initialArg, init) {
      var hook = mountWorkInProgressHook();
      var initialState;
    
      if (init !== undefined) {
        initialState = init(initialArg);
      } else {
        initialState = initialArg;
      }
    
      hook.memoizedState = hook.baseState = initialState;
      var queue = hook.queue = {
        last: null,
        dispatch: null,
        lastRenderedReducer: reducer,
        lastRenderedState: initialState
      };
      var dispatch = queue.dispatch = dispatchAction.bind(null, // Flow doesn't know this is non-null, but we do.
      currentlyRenderingFiber$1, queue);
      return [hook.memoizedState, dispatch];
    }
    
    function updateReducer(reducer, initialArg, init) {
      var hook = updateWorkInProgressHook();
      var queue = hook.queue;
    
      (function () {
        if (!(queue !== null)) {
          {
            throw ReactError(Error("Should have a queue. This is likely a bug in React. Please file an issue."));
          }
        }
      })();
    
      queue.lastRenderedReducer = reducer;
    
      if (numberOfReRenders > 0) {
        // This is a re-render. Apply the new render phase updates to the previous
        // work-in-progress hook.
        var _dispatch = queue.dispatch;
    
        if (renderPhaseUpdates !== null) {
          // Render phase updates are stored in a map of queue -> linked list
          var firstRenderPhaseUpdate = renderPhaseUpdates.get(queue);
    
          if (firstRenderPhaseUpdate !== undefined) {
            renderPhaseUpdates.delete(queue);
            var newState = hook.memoizedState;
            var update = firstRenderPhaseUpdate;
    
            do {
              // Process this render phase update. We don't have to check the
              // priority because it will always be the same as the current
              // render's.
              var action = update.action;
              newState = reducer(newState, action);
              update = update.next;
            } while (update !== null); // Mark that the fiber performed work, but only if the new state is
            // different from the current state.
    
    
            if (!is$1(newState, hook.memoizedState)) {
              markWorkInProgressReceivedUpdate();
            }
    
            hook.memoizedState = newState; // Don't persist the state accumulated from the render phase updates to
            // the base state unless the queue is empty.
            // TODO: Not sure if this is the desired semantics, but it's what we
            // do for gDSFP. I can't remember why.
    
            if (hook.baseUpdate === queue.last) {
              hook.baseState = newState;
            }
    
            queue.lastRenderedState = newState;
            return [newState, _dispatch];
          }
        }
    
        return [hook.memoizedState, _dispatch];
      } // The last update in the entire queue
    
    
      var last = queue.last; // The last update that is part of the base state.
    
      var baseUpdate = hook.baseUpdate;
      var baseState = hook.baseState; // Find the first unprocessed update.
    
      var first;
    
      if (baseUpdate !== null) {
        if (last !== null) {
          // For the first update, the queue is a circular linked list where
          // `queue.last.next = queue.first`. Once the first update commits, and
          // the `baseUpdate` is no longer empty, we can unravel the list.
          last.next = null;
        }
    
        first = baseUpdate.next;
      } else {
        first = last !== null ? last.next : null;
      }
    
      if (first !== null) {
        var _newState = baseState;
        var newBaseState = null;
        var newBaseUpdate = null;
        var prevUpdate = baseUpdate;
        var _update = first;
        var didSkip = false;
    
        do {
          var updateExpirationTime = _update.expirationTime;
    
          if (updateExpirationTime < renderExpirationTime$1) {
            // Priority is insufficient. Skip this update. If this is the first
            // skipped update, the previous update/state is the new base
            // update/state.
            if (!didSkip) {
              didSkip = true;
              newBaseUpdate = prevUpdate;
              newBaseState = _newState;
            } // Update the remaining priority in the queue.
    
    
            if (updateExpirationTime > remainingExpirationTime) {
              remainingExpirationTime = updateExpirationTime;
              markUnprocessedUpdateTime(remainingExpirationTime);
            }
          } else {
            // This update does have sufficient priority.
            // Mark the event time of this update as relevant to this render pass.
            // TODO: This should ideally use the true event time of this update rather than
            // its priority which is a derived and not reverseable value.
            // TODO: We should skip this update if it was already committed but currently
            // we have no way of detecting the difference between a committed and suspended
            // update here.
            markRenderEventTimeAndConfig(updateExpirationTime, _update.suspenseConfig); // Process this update.
    
            if (_update.eagerReducer === reducer) {
              // If this update was processed eagerly, and its reducer matches the
              // current reducer, we can use the eagerly computed state.
              _newState = _update.eagerState;
            } else {
              var _action = _update.action;
              _newState = reducer(_newState, _action);
            }
          }
    
          prevUpdate = _update;
          _update = _update.next;
        } while (_update !== null && _update !== first);
    
        if (!didSkip) {
          newBaseUpdate = prevUpdate;
          newBaseState = _newState;
        } // Mark that the fiber performed work, but only if the new state is
        // different from the current state.
    
    
        if (!is$1(_newState, hook.memoizedState)) {
          markWorkInProgressReceivedUpdate();
        }
    
        hook.memoizedState = _newState;
        hook.baseUpdate = newBaseUpdate;
        hook.baseState = newBaseState;
        queue.lastRenderedState = _newState;
      }
    
      var dispatch = queue.dispatch;
      return [hook.memoizedState, dispatch];
    }
    
    function mountState(initialState) {
      var hook = mountWorkInProgressHook();
    
      if (typeof initialState === 'function') {
        initialState = initialState();
      }
    
      hook.memoizedState = hook.baseState = initialState;
      var queue = hook.queue = {
        last: null,
        dispatch: null,
        lastRenderedReducer: basicStateReducer,
        lastRenderedState: initialState
      };
      var dispatch = queue.dispatch = dispatchAction.bind(null, // Flow doesn't know this is non-null, but we do.
      currentlyRenderingFiber$1, queue);
      return [hook.memoizedState, dispatch];
    }
    
    function updateState(initialState) {
      return updateReducer(basicStateReducer, initialState);
    }
    
    function pushEffect(tag, create, destroy, deps) {
      var effect = {
        tag: tag,
        create: create,
        destroy: destroy,
        deps: deps,
        // Circular
        next: null
      };
    
      if (componentUpdateQueue === null) {
        componentUpdateQueue = createFunctionComponentUpdateQueue();
        componentUpdateQueue.lastEffect = effect.next = effect;
      } else {
        var lastEffect = componentUpdateQueue.lastEffect;
    
        if (lastEffect === null) {
          componentUpdateQueue.lastEffect = effect.next = effect;
        } else {
          var firstEffect = lastEffect.next;
          lastEffect.next = effect;
          effect.next = firstEffect;
          componentUpdateQueue.lastEffect = effect;
        }
      }
    
      return effect;
    }
    
    function mountRef(initialValue) {
      var hook = mountWorkInProgressHook();
      var ref = {
        current: initialValue
      };
    
      {
        Object.seal(ref);
      }
    
      hook.memoizedState = ref;
      return ref;
    }
    
    function updateRef(initialValue) {
      var hook = updateWorkInProgressHook();
      return hook.memoizedState;
    }
    
    function mountEffectImpl(fiberEffectTag, hookEffectTag, create, deps) {
      var hook = mountWorkInProgressHook();
      var nextDeps = deps === undefined ? null : deps;
      sideEffectTag |= fiberEffectTag;
      hook.memoizedState = pushEffect(hookEffectTag, create, undefined, nextDeps);
    }
    
    function updateEffectImpl(fiberEffectTag, hookEffectTag, create, deps) {
      var hook = updateWorkInProgressHook();
      var nextDeps = deps === undefined ? null : deps;
      var destroy = undefined;
    
      if (currentHook !== null) {
        var prevEffect = currentHook.memoizedState;
        destroy = prevEffect.destroy;
    
        if (nextDeps !== null) {
          var prevDeps = prevEffect.deps;
    
          if (areHookInputsEqual(nextDeps, prevDeps)) {
            pushEffect(NoEffect$1, create, destroy, nextDeps);
            return;
          }
        }
      }
    
      sideEffectTag |= fiberEffectTag;
      hook.memoizedState = pushEffect(hookEffectTag, create, destroy, nextDeps);
    }
    
    function mountEffect(create, deps) {
      {
        // $FlowExpectedError - jest isn't a global, and isn't recognized outside of tests
        if ('undefined' !== typeof jest) {
          warnIfNotCurrentlyActingEffectsInDEV(currentlyRenderingFiber$1);
        }
      }
    
      return mountEffectImpl(Update | Passive, UnmountPassive | MountPassive, create, deps);
    }
    
    function updateEffect(create, deps) {
      {
        // $FlowExpectedError - jest isn't a global, and isn't recognized outside of tests
        if ('undefined' !== typeof jest) {
          warnIfNotCurrentlyActingEffectsInDEV(currentlyRenderingFiber$1);
        }
      }
    
      return updateEffectImpl(Update | Passive, UnmountPassive | MountPassive, create, deps);
    }
    
    function mountLayoutEffect(create, deps) {
      return mountEffectImpl(Update, UnmountMutation | MountLayout, create, deps);
    }
    
    function updateLayoutEffect(create, deps) {
      return updateEffectImpl(Update, UnmountMutation | MountLayout, create, deps);
    }
    
    function imperativeHandleEffect(create, ref) {
      if (typeof ref === 'function') {
        var refCallback = ref;
    
        var _inst = create();
    
        refCallback(_inst);
        return function () {
          refCallback(null);
        };
      } else if (ref !== null && ref !== undefined) {
        var refObject = ref;
    
        {
          !refObject.hasOwnProperty('current') ? warning$1(false, 'Expected useImperativeHandle() first argument to either be a ' + 'ref callback or React.createRef() object. Instead received: %s.', 'an object with keys {' + Object.keys(refObject).join(', ') + '}') : void 0;
        }
    
        var _inst2 = create();
    
        refObject.current = _inst2;
        return function () {
          refObject.current = null;
        };
      }
    }
    
    function mountImperativeHandle(ref, create, deps) {
      {
        !(typeof create === 'function') ? warning$1(false, 'Expected useImperativeHandle() second argument to be a function ' + 'that creates a handle. Instead received: %s.', create !== null ? typeof create : 'null') : void 0;
      } // TODO: If deps are provided, should we skip comparing the ref itself?
    
    
      var effectDeps = deps !== null && deps !== undefined ? deps.concat([ref]) : null;
      return mountEffectImpl(Update, UnmountMutation | MountLayout, imperativeHandleEffect.bind(null, create, ref), effectDeps);
    }
    
    function updateImperativeHandle(ref, create, deps) {
      {
        !(typeof create === 'function') ? warning$1(false, 'Expected useImperativeHandle() second argument to be a function ' + 'that creates a handle. Instead received: %s.', create !== null ? typeof create : 'null') : void 0;
      } // TODO: If deps are provided, should we skip comparing the ref itself?
    
    
      var effectDeps = deps !== null && deps !== undefined ? deps.concat([ref]) : null;
      return updateEffectImpl(Update, UnmountMutation | MountLayout, imperativeHandleEffect.bind(null, create, ref), effectDeps);
    }
    
    function mountDebugValue(value, formatterFn) {// This hook is normally a no-op.
      // The react-debug-hooks package injects its own implementation
      // so that e.g. DevTools can display custom hook values.
    }
    
    var updateDebugValue = mountDebugValue;
    
    function mountCallback(callback, deps) {
      var hook = mountWorkInProgressHook();
      var nextDeps = deps === undefined ? null : deps;
      hook.memoizedState = [callback, nextDeps];
      return callback;
    }
    
    function updateCallback(callback, deps) {
      var hook = updateWorkInProgressHook();
      var nextDeps = deps === undefined ? null : deps;
      var prevState = hook.memoizedState;
    
      if (prevState !== null) {
        if (nextDeps !== null) {
          var prevDeps = prevState[1];
    
          if (areHookInputsEqual(nextDeps, prevDeps)) {
            return prevState[0];
          }
        }
      }
    
      hook.memoizedState = [callback, nextDeps];
      return callback;
    }
    
    function mountMemo(nextCreate, deps) {
      var hook = mountWorkInProgressHook();
      var nextDeps = deps === undefined ? null : deps;
      var nextValue = nextCreate();
      hook.memoizedState = [nextValue, nextDeps];
      return nextValue;
    }
    
    function updateMemo(nextCreate, deps) {
      var hook = updateWorkInProgressHook();
      var nextDeps = deps === undefined ? null : deps;
      var prevState = hook.memoizedState;
    
      if (prevState !== null) {
        // Assume these are defined. If they're not, areHookInputsEqual will warn.
        if (nextDeps !== null) {
          var prevDeps = prevState[1];
    
          if (areHookInputsEqual(nextDeps, prevDeps)) {
            return prevState[0];
          }
        }
      }
    
      var nextValue = nextCreate();
      hook.memoizedState = [nextValue, nextDeps];
      return nextValue;
    }
    
    function dispatchAction(fiber, queue, action) {
      (function () {
        if (!(numberOfReRenders < RE_RENDER_LIMIT)) {
          {
            throw ReactError(Error("Too many re-renders. React limits the number of renders to prevent an infinite loop."));
          }
        }
      })();
    
      {
        !(typeof arguments[3] !== 'function') ? warning$1(false, "State updates from the useState() and useReducer() Hooks don't support the " + 'second callback argument. To execute a side effect after ' + 'rendering, declare it in the component body with useEffect().') : void 0;
      }
    
      var alternate = fiber.alternate;
    
      if (fiber === currentlyRenderingFiber$1 || alternate !== null && alternate === currentlyRenderingFiber$1) {
        // This is a render phase update. Stash it in a lazily-created map of
        // queue -> linked list of updates. After this render pass, we'll restart
        // and apply the stashed updates on top of the work-in-progress hook.
        didScheduleRenderPhaseUpdate = true;
        var update = {
          expirationTime: renderExpirationTime$1,
          suspenseConfig: null,
          action: action,
          eagerReducer: null,
          eagerState: null,
          next: null
        };
    
        {
          update.priority = getCurrentPriorityLevel();
        }
    
        if (renderPhaseUpdates === null) {
          renderPhaseUpdates = new Map();
        }
    
        var firstRenderPhaseUpdate = renderPhaseUpdates.get(queue);
    
        if (firstRenderPhaseUpdate === undefined) {
          renderPhaseUpdates.set(queue, update);
        } else {
          // Append the update to the end of the list.
          var lastRenderPhaseUpdate = firstRenderPhaseUpdate;
    
          while (lastRenderPhaseUpdate.next !== null) {
            lastRenderPhaseUpdate = lastRenderPhaseUpdate.next;
          }
    
          lastRenderPhaseUpdate.next = update;
        }
      } else {
        var currentTime = requestCurrentTime();
        var suspenseConfig = requestCurrentSuspenseConfig();
        var expirationTime = computeExpirationForFiber(currentTime, fiber, suspenseConfig);
        var _update2 = {
          expirationTime: expirationTime,
          suspenseConfig: suspenseConfig,
          action: action,
          eagerReducer: null,
          eagerState: null,
          next: null
        };
    
        {
          _update2.priority = getCurrentPriorityLevel();
        } // Append the update to the end of the list.
    
    
        var last = queue.last;
    
        if (last === null) {
          // This is the first update. Create a circular list.
          _update2.next = _update2;
        } else {
          var first = last.next;
    
          if (first !== null) {
            // Still circular.
            _update2.next = first;
          }
    
          last.next = _update2;
        }
    
        queue.last = _update2;
    
        if (fiber.expirationTime === NoWork && (alternate === null || alternate.expirationTime === NoWork)) {
          // The queue is currently empty, which means we can eagerly compute the
          // next state before entering the render phase. If the new state is the
          // same as the current state, we may be able to bail out entirely.
          var lastRenderedReducer = queue.lastRenderedReducer;
    
          if (lastRenderedReducer !== null) {
            var prevDispatcher;
    
            {
              prevDispatcher = ReactCurrentDispatcher$1.current;
              ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnUpdateInDEV;
            }
    
            try {
              var currentState = queue.lastRenderedState;
              var eagerState = lastRenderedReducer(currentState, action); // Stash the eagerly computed state, and the reducer used to compute
              // it, on the update object. If the reducer hasn't changed by the
              // time we enter the render phase, then the eager state can be used
              // without calling the reducer again.
    
              _update2.eagerReducer = lastRenderedReducer;
              _update2.eagerState = eagerState;
    
              if (is$1(eagerState, currentState)) {
                // Fast path. We can bail out without scheduling React to re-render.
                // It's still possible that we'll need to rebase this update later,
                // if the component re-renders for a different reason and by that
                // time the reducer has changed.
                return;
              }
            } catch (error) {// Suppress the error. It will throw again in the render phase.
            } finally {
              {
                ReactCurrentDispatcher$1.current = prevDispatcher;
              }
            }
          }
        }
    
        {
          // $FlowExpectedError - jest isn't a global, and isn't recognized outside of tests
          if ('undefined' !== typeof jest) {
            warnIfNotScopedWithMatchingAct(fiber);
            warnIfNotCurrentlyActingUpdatesInDev(fiber);
          }
        }
    
        scheduleWork(fiber, expirationTime);
      }
    }
    
    var ContextOnlyDispatcher = {
      readContext: readContext,
      useCallback: throwInvalidHookError,
      useContext: throwInvalidHookError,
      useEffect: throwInvalidHookError,
      useImperativeHandle: throwInvalidHookError,
      useLayoutEffect: throwInvalidHookError,
      useMemo: throwInvalidHookError,
      useReducer: throwInvalidHookError,
      useRef: throwInvalidHookError,
      useState: throwInvalidHookError,
      useDebugValue: throwInvalidHookError,
      useResponder: throwInvalidHookError
    };
    var HooksDispatcherOnMountInDEV = null;
    var HooksDispatcherOnMountWithHookTypesInDEV = null;
    var HooksDispatcherOnUpdateInDEV = null;
    var InvalidNestedHooksDispatcherOnMountInDEV = null;
    var InvalidNestedHooksDispatcherOnUpdateInDEV = null;
    
    {
      var warnInvalidContextAccess = function () {
        warning$1(false, 'Context can only be read while React is rendering. ' + 'In classes, you can read it in the render method or getDerivedStateFromProps. ' + 'In function components, you can read it directly in the function body, but not ' + 'inside Hooks like useReducer() or useMemo().');
      };
    
      var warnInvalidHookAccess = function () {
        warning$1(false, 'Do not call Hooks inside useEffect(...), useMemo(...), or other built-in Hooks. ' + 'You can only call Hooks at the top level of your React function. ' + 'For more information, see ' + 'https://fb.me/rules-of-hooks');
      };
    
      HooksDispatcherOnMountInDEV = {
        readContext: function (context, observedBits) {
          return readContext(context, observedBits);
        },
        useCallback: function (callback, deps) {
          currentHookNameInDev = 'useCallback';
          mountHookTypesDev();
          checkDepsAreArrayDev(deps);
          return mountCallback(callback, deps);
        },
        useContext: function (context, observedBits) {
          currentHookNameInDev = 'useContext';
          mountHookTypesDev();
          return readContext(context, observedBits);
        },
        useEffect: function (create, deps) {
          currentHookNameInDev = 'useEffect';
          mountHookTypesDev();
          checkDepsAreArrayDev(deps);
          return mountEffect(create, deps);
        },
        useImperativeHandle: function (ref, create, deps) {
          currentHookNameInDev = 'useImperativeHandle';
          mountHookTypesDev();
          checkDepsAreArrayDev(deps);
          return mountImperativeHandle(ref, create, deps);
        },
        useLayoutEffect: function (create, deps) {
          currentHookNameInDev = 'useLayoutEffect';
          mountHookTypesDev();
          checkDepsAreArrayDev(deps);
          return mountLayoutEffect(create, deps);
        },
        useMemo: function (create, deps) {
          currentHookNameInDev = 'useMemo';
          mountHookTypesDev();
          checkDepsAreArrayDev(deps);
          var prevDispatcher = ReactCurrentDispatcher$1.current;
          ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnMountInDEV;
    
          try {
            return mountMemo(create, deps);
          } finally {
            ReactCurrentDispatcher$1.current = prevDispatcher;
          }
        },
        useReducer: function (reducer, initialArg, init) {
          currentHookNameInDev = 'useReducer';
          mountHookTypesDev();
          var prevDispatcher = ReactCurrentDispatcher$1.current;
          ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnMountInDEV;
    
          try {
            return mountReducer(reducer, initialArg, init);
          } finally {
            ReactCurrentDispatcher$1.current = prevDispatcher;
          }
        },
        useRef: function (initialValue) {
          currentHookNameInDev = 'useRef';
          mountHookTypesDev();
          return mountRef(initialValue);
        },
        useState: function (initialState) {
          currentHookNameInDev = 'useState';
          mountHookTypesDev();
          var prevDispatcher = ReactCurrentDispatcher$1.current;
          ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnMountInDEV;
    
          try {
            return mountState(initialState);
          } finally {
            ReactCurrentDispatcher$1.current = prevDispatcher;
          }
        },
        useDebugValue: function (value, formatterFn) {
          currentHookNameInDev = 'useDebugValue';
          mountHookTypesDev();
          return mountDebugValue(value, formatterFn);
        },
        useResponder: function (responder, props) {
          currentHookNameInDev = 'useResponder';
          mountHookTypesDev();
          return createResponderListener(responder, props);
        }
      };
      HooksDispatcherOnMountWithHookTypesInDEV = {
        readContext: function (context, observedBits) {
          return readContext(context, observedBits);
        },
        useCallback: function (callback, deps) {
          currentHookNameInDev = 'useCallback';
          updateHookTypesDev();
          return mountCallback(callback, deps);
        },
        useContext: function (context, observedBits) {
          currentHookNameInDev = 'useContext';
          updateHookTypesDev();
          return readContext(context, observedBits);
        },
        useEffect: function (create, deps) {
          currentHookNameInDev = 'useEffect';
          updateHookTypesDev();
          return mountEffect(create, deps);
        },
        useImperativeHandle: function (ref, create, deps) {
          currentHookNameInDev = 'useImperativeHandle';
          updateHookTypesDev();
          return mountImperativeHandle(ref, create, deps);
        },
        useLayoutEffect: function (create, deps) {
          currentHookNameInDev = 'useLayoutEffect';
          updateHookTypesDev();
          return mountLayoutEffect(create, deps);
        },
        useMemo: function (create, deps) {
          currentHookNameInDev = 'useMemo';
          updateHookTypesDev();
          var prevDispatcher = ReactCurrentDispatcher$1.current;
          ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnMountInDEV;
    
          try {
            return mountMemo(create, deps);
          } finally {
            ReactCurrentDispatcher$1.current = prevDispatcher;
          }
        },
        useReducer: function (reducer, initialArg, init) {
          currentHookNameInDev = 'useReducer';
          updateHookTypesDev();
          var prevDispatcher = ReactCurrentDispatcher$1.current;
          ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnMountInDEV;
    
          try {
            return mountReducer(reducer, initialArg, init);
          } finally {
            ReactCurrentDispatcher$1.current = prevDispatcher;
          }
        },
        useRef: function (initialValue) {
          currentHookNameInDev = 'useRef';
          updateHookTypesDev();
          return mountRef(initialValue);
        },
        useState: function (initialState) {
          currentHookNameInDev = 'useState';
          updateHookTypesDev();
          var prevDispatcher = ReactCurrentDispatcher$1.current;
          ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnMountInDEV;
    
          try {
            return mountState(initialState);
          } finally {
            ReactCurrentDispatcher$1.current = prevDispatcher;
          }
        },
        useDebugValue: function (value, formatterFn) {
          currentHookNameInDev = 'useDebugValue';
          updateHookTypesDev();
          return mountDebugValue(value, formatterFn);
        },
        useResponder: function (responder, props) {
          currentHookNameInDev = 'useResponder';
          updateHookTypesDev();
          return createResponderListener(responder, props);
        }
      };
      HooksDispatcherOnUpdateInDEV = {
        readContext: function (context, observedBits) {
          return readContext(context, observedBits);
        },
        useCallback: function (callback, deps) {
          currentHookNameInDev = 'useCallback';
          updateHookTypesDev();
          return updateCallback(callback, deps);
        },
        useContext: function (context, observedBits) {
          currentHookNameInDev = 'useContext';
          updateHookTypesDev();
          return readContext(context, observedBits);
        },
        useEffect: function (create, deps) {
          currentHookNameInDev = 'useEffect';
          updateHookTypesDev();
          return updateEffect(create, deps);
        },
        useImperativeHandle: function (ref, create, deps) {
          currentHookNameInDev = 'useImperativeHandle';
          updateHookTypesDev();
          return updateImperativeHandle(ref, create, deps);
        },
        useLayoutEffect: function (create, deps) {
          currentHookNameInDev = 'useLayoutEffect';
          updateHookTypesDev();
          return updateLayoutEffect(create, deps);
        },
        useMemo: function (create, deps) {
          currentHookNameInDev = 'useMemo';
          updateHookTypesDev();
          var prevDispatcher = ReactCurrentDispatcher$1.current;
          ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnUpdateInDEV;
    
          try {
            return updateMemo(create, deps);
          } finally {
            ReactCurrentDispatcher$1.current = prevDispatcher;
          }
        },
        useReducer: function (reducer, initialArg, init) {
          currentHookNameInDev = 'useReducer';
          updateHookTypesDev();
          var prevDispatcher = ReactCurrentDispatcher$1.current;
          ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnUpdateInDEV;
    
          try {
            return updateReducer(reducer, initialArg, init);
          } finally {
            ReactCurrentDispatcher$1.current = prevDispatcher;
          }
        },
        useRef: function (initialValue) {
          currentHookNameInDev = 'useRef';
          updateHookTypesDev();
          return updateRef(initialValue);
        },
        useState: function (initialState) {
          currentHookNameInDev = 'useState';
          updateHookTypesDev();
          var prevDispatcher = ReactCurrentDispatcher$1.current;
          ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnUpdateInDEV;
    
          try {
            return updateState(initialState);
          } finally {
            ReactCurrentDispatcher$1.current = prevDispatcher;
          }
        },
        useDebugValue: function (value, formatterFn) {
          currentHookNameInDev = 'useDebugValue';
          updateHookTypesDev();
          return updateDebugValue(value, formatterFn);
        },
        useResponder: function (responder, props) {
          currentHookNameInDev = 'useResponder';
          updateHookTypesDev();
          return createResponderListener(responder, props);
        }
      };
      InvalidNestedHooksDispatcherOnMountInDEV = {
        readContext: function (context, observedBits) {
          warnInvalidContextAccess();
          return readContext(context, observedBits);
        },
        useCallback: function (callback, deps) {
          currentHookNameInDev = 'useCallback';
          warnInvalidHookAccess();
          mountHookTypesDev();
          return mountCallback(callback, deps);
        },
        useContext: function (context, observedBits) {
          currentHookNameInDev = 'useContext';
          warnInvalidHookAccess();
          mountHookTypesDev();
          return readContext(context, observedBits);
        },
        useEffect: function (create, deps) {
          currentHookNameInDev = 'useEffect';
          warnInvalidHookAccess();
          mountHookTypesDev();
          return mountEffect(create, deps);
        },
        useImperativeHandle: function (ref, create, deps) {
          currentHookNameInDev = 'useImperativeHandle';
          warnInvalidHookAccess();
          mountHookTypesDev();
          return mountImperativeHandle(ref, create, deps);
        },
        useLayoutEffect: function (create, deps) {
          currentHookNameInDev = 'useLayoutEffect';
          warnInvalidHookAccess();
          mountHookTypesDev();
          return mountLayoutEffect(create, deps);
        },
        useMemo: function (create, deps) {
          currentHookNameInDev = 'useMemo';
          warnInvalidHookAccess();
          mountHookTypesDev();
          var prevDispatcher = ReactCurrentDispatcher$1.current;
          ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnMountInDEV;
    
          try {
            return mountMemo(create, deps);
          } finally {
            ReactCurrentDispatcher$1.current = prevDispatcher;
          }
        },
        useReducer: function (reducer, initialArg, init) {
          currentHookNameInDev = 'useReducer';
          warnInvalidHookAccess();
          mountHookTypesDev();
          var prevDispatcher = ReactCurrentDispatcher$1.current;
          ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnMountInDEV;
    
          try {
            return mountReducer(reducer, initialArg, init);
          } finally {
            ReactCurrentDispatcher$1.current = prevDispatcher;
          }
        },
        useRef: function (initialValue) {
          currentHookNameInDev = 'useRef';
          warnInvalidHookAccess();
          mountHookTypesDev();
          return mountRef(initialValue);
        },
        useState: function (initialState) {
          currentHookNameInDev = 'useState';
          warnInvalidHookAccess();
          mountHookTypesDev();
          var prevDispatcher = ReactCurrentDispatcher$1.current;
          ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnMountInDEV;
    
          try {
            return mountState(initialState);
          } finally {
            ReactCurrentDispatcher$1.current = prevDispatcher;
          }
        },
        useDebugValue: function (value, formatterFn) {
          currentHookNameInDev = 'useDebugValue';
          warnInvalidHookAccess();
          mountHookTypesDev();
          return mountDebugValue(value, formatterFn);
        },
        useResponder: function (responder, props) {
          currentHookNameInDev = 'useResponder';
          warnInvalidHookAccess();
          mountHookTypesDev();
          return createResponderListener(responder, props);
        }
      };
      InvalidNestedHooksDispatcherOnUpdateInDEV = {
        readContext: function (context, observedBits) {
          warnInvalidContextAccess();
          return readContext(context, observedBits);
        },
        useCallback: function (callback, deps) {
          currentHookNameInDev = 'useCallback';
          warnInvalidHookAccess();
          updateHookTypesDev();
          return updateCallback(callback, deps);
        },
        useContext: function (context, observedBits) {
          currentHookNameInDev = 'useContext';
          warnInvalidHookAccess();
          updateHookTypesDev();
          return readContext(context, observedBits);
        },
        useEffect: function (create, deps) {
          currentHookNameInDev = 'useEffect';
          warnInvalidHookAccess();
          updateHookTypesDev();
          return updateEffect(create, deps);
        },
        useImperativeHandle: function (ref, create, deps) {
          currentHookNameInDev = 'useImperativeHandle';
          warnInvalidHookAccess();
          updateHookTypesDev();
          return updateImperativeHandle(ref, create, deps);
        },
        useLayoutEffect: function (create, deps) {
          currentHookNameInDev = 'useLayoutEffect';
          warnInvalidHookAccess();
          updateHookTypesDev();
          return updateLayoutEffect(create, deps);
        },
        useMemo: function (create, deps) {
          currentHookNameInDev = 'useMemo';
          warnInvalidHookAccess();
          updateHookTypesDev();
          var prevDispatcher = ReactCurrentDispatcher$1.current;
          ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnUpdateInDEV;
    
          try {
            return updateMemo(create, deps);
          } finally {
            ReactCurrentDispatcher$1.current = prevDispatcher;
          }
        },
        useReducer: function (reducer, initialArg, init) {
          currentHookNameInDev = 'useReducer';
          warnInvalidHookAccess();
          updateHookTypesDev();
          var prevDispatcher = ReactCurrentDispatcher$1.current;
          ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnUpdateInDEV;
    
          try {
            return updateReducer(reducer, initialArg, init);
          } finally {
            ReactCurrentDispatcher$1.current = prevDispatcher;
          }
        },
        useRef: function (initialValue) {
          currentHookNameInDev = 'useRef';
          warnInvalidHookAccess();
          updateHookTypesDev();
          return updateRef(initialValue);
        },
        useState: function (initialState) {
          currentHookNameInDev = 'useState';
          warnInvalidHookAccess();
          updateHookTypesDev();
          var prevDispatcher = ReactCurrentDispatcher$1.current;
          ReactCurrentDispatcher$1.current = InvalidNestedHooksDispatcherOnUpdateInDEV;
    
          try {
            return updateState(initialState);
          } finally {
            ReactCurrentDispatcher$1.current = prevDispatcher;
          }
        },
        useDebugValue: function (value, formatterFn) {
          currentHookNameInDev = 'useDebugValue';
          warnInvalidHookAccess();
          updateHookTypesDev();
          return updateDebugValue(value, formatterFn);
        },
        useResponder: function (responder, props) {
          currentHookNameInDev = 'useResponder';
          warnInvalidHookAccess();
          updateHookTypesDev();
          return createResponderListener(responder, props);
        }
      };
    }
    
    // CommonJS interop named imports.
    
    var now$1 = Scheduler.unstable_now;
    var commitTime = 0;
    var profilerStartTime = -1;
    
    function getCommitTime() {
      return commitTime;
    }
    
    function recordCommitTime() {
      if (!enableProfilerTimer) {
        return;
      }
    
      commitTime = now$1();
    }
    
    function startProfilerTimer(fiber) {
      if (!enableProfilerTimer) {
        return;
      }
    
      profilerStartTime = now$1();
    
      if (fiber.actualStartTime < 0) {
        fiber.actualStartTime = now$1();
      }
    }
    
    function stopProfilerTimerIfRunning(fiber) {
      if (!enableProfilerTimer) {
        return;
      }
    
      profilerStartTime = -1;
    }
    
    function stopProfilerTimerIfRunningAndRecordDelta(fiber, overrideBaseTime) {
      if (!enableProfilerTimer) {
        return;
      }
    
      if (profilerStartTime >= 0) {
        var elapsedTime = now$1() - profilerStartTime;
        fiber.actualDuration += elapsedTime;
    
        if (overrideBaseTime) {
          fiber.selfBaseDuration = elapsedTime;
        }
    
        profilerStartTime = -1;
      }
    }
    
    // This may have been an insertion or a hydration.
    
    var hydrationParentFiber = null;
    var nextHydratableInstance = null;
    var isHydrating = false;
    
    function warnIfHydrating() {
      {
        !!isHydrating ? warning$1(false, 'We should not be hydrating here. This is a bug in React. Please file a bug.') : void 0;
      }
    }
    
    function enterHydrationState(fiber) {
      if (!supportsHydration) {
        return false;
      }
    
      var parentInstance = fiber.stateNode.containerInfo;
      nextHydratableInstance = getFirstHydratableChild(parentInstance);
      hydrationParentFiber = fiber;
      isHydrating = true;
      return true;
    }
    
    function reenterHydrationStateFromDehydratedSuspenseInstance(fiber, suspenseInstance) {
      if (!supportsHydration) {
        return false;
      }
    
      nextHydratableInstance = getNextHydratableSibling(suspenseInstance);
      popToNextHostParent(fiber);
      isHydrating = true;
      return true;
    }
    
    function deleteHydratableInstance(returnFiber, instance) {
      {
        switch (returnFiber.tag) {
          case HostRoot:
            didNotHydrateContainerInstance(returnFiber.stateNode.containerInfo, instance);
            break;
    
          case HostComponent:
            didNotHydrateInstance(returnFiber.type, returnFiber.memoizedProps, returnFiber.stateNode, instance);
            break;
        }
      }
    
      var childToDelete = createFiberFromHostInstanceForDeletion();
      childToDelete.stateNode = instance;
      childToDelete.return = returnFiber;
      childToDelete.effectTag = Deletion; // This might seem like it belongs on progressedFirstDeletion. However,
      // these children are not part of the reconciliation list of children.
      // Even if we abort and rereconcile the children, that will try to hydrate
      // again and the nodes are still in the host tree so these will be
      // recreated.
    
      if (returnFiber.lastEffect !== null) {
        returnFiber.lastEffect.nextEffect = childToDelete;
        returnFiber.lastEffect = childToDelete;
      } else {
        returnFiber.firstEffect = returnFiber.lastEffect = childToDelete;
      }
    }
    
    function insertNonHydratedInstance(returnFiber, fiber) {
      fiber.effectTag = fiber.effectTag & ~Hydrating | Placement;
    
      {
        switch (returnFiber.tag) {
          case HostRoot:
            {
              var parentContainer = returnFiber.stateNode.containerInfo;
    
              switch (fiber.tag) {
                case HostComponent:
                  var type = fiber.type;
                  var props = fiber.pendingProps;
                  didNotFindHydratableContainerInstance(parentContainer, type, props);
                  break;
    
                case HostText:
                  var text = fiber.pendingProps;
                  didNotFindHydratableContainerTextInstance(parentContainer, text);
                  break;
    
                case SuspenseComponent:
                  
                  break;
              }
    
              break;
            }
    
          case HostComponent:
            {
              var parentType = returnFiber.type;
              var parentProps = returnFiber.memoizedProps;
              var parentInstance = returnFiber.stateNode;
    
              switch (fiber.tag) {
                case HostComponent:
                  var _type = fiber.type;
                  var _props = fiber.pendingProps;
                  didNotFindHydratableInstance(parentType, parentProps, parentInstance, _type, _props);
                  break;
    
                case HostText:
                  var _text = fiber.pendingProps;
                  didNotFindHydratableTextInstance(parentType, parentProps, parentInstance, _text);
                  break;
    
                case SuspenseComponent:
                  didNotFindHydratableSuspenseInstance(parentType, parentProps, parentInstance);
                  break;
              }
    
              break;
            }
    
          default:
            return;
        }
      }
    }
    
    function tryHydrate(fiber, nextInstance) {
      switch (fiber.tag) {
        case HostComponent:
          {
            var type = fiber.type;
            var props = fiber.pendingProps;
            var instance = canHydrateInstance(nextInstance, type, props);
    
            if (instance !== null) {
              fiber.stateNode = instance;
              return true;
            }
    
            return false;
          }
    
        case HostText:
          {
            var text = fiber.pendingProps;
            var textInstance = canHydrateTextInstance(nextInstance, text);
    
            if (textInstance !== null) {
              fiber.stateNode = textInstance;
              return true;
            }
    
            return false;
          }
    
        case SuspenseComponent:
          {
            if (enableSuspenseServerRenderer) {
              var suspenseInstance = canHydrateSuspenseInstance(nextInstance);
    
              if (suspenseInstance !== null) {
                var suspenseState = {
                  dehydrated: suspenseInstance,
                  retryTime: Never
                };
                fiber.memoizedState = suspenseState; // Store the dehydrated fragment as a child fiber.
                // This simplifies the code for getHostSibling and deleting nodes,
                // since it doesn't have to consider all Suspense boundaries and
                // check if they're dehydrated ones or not.
    
                var dehydratedFragment = createFiberFromDehydratedFragment(suspenseInstance);
                dehydratedFragment.return = fiber;
                fiber.child = dehydratedFragment;
                return true;
              }
            }
    
            return false;
          }
    
        default:
          return false;
      }
    }
    
    function tryToClaimNextHydratableInstance(fiber) {
      if (!isHydrating) {
        return;
      }
    
      var nextInstance = nextHydratableInstance;
    
      if (!nextInstance) {
        // Nothing to hydrate. Make it an insertion.
        insertNonHydratedInstance(hydrationParentFiber, fiber);
        isHydrating = false;
        hydrationParentFiber = fiber;
        return;
      }
    
      var firstAttemptedInstance = nextInstance;
    
      if (!tryHydrate(fiber, nextInstance)) {
        // If we can't hydrate this instance let's try the next one.
        // We use this as a heuristic. It's based on intuition and not data so it
        // might be flawed or unnecessary.
        nextInstance = getNextHydratableSibling(firstAttemptedInstance);
    
        if (!nextInstance || !tryHydrate(fiber, nextInstance)) {
          // Nothing to hydrate. Make it an insertion.
          insertNonHydratedInstance(hydrationParentFiber, fiber);
          isHydrating = false;
          hydrationParentFiber = fiber;
          return;
        } // We matched the next one, we'll now assume that the first one was
        // superfluous and we'll delete it. Since we can't eagerly delete it
        // we'll have to schedule a deletion. To do that, this node needs a dummy
        // fiber associated with it.
    
    
        deleteHydratableInstance(hydrationParentFiber, firstAttemptedInstance);
      }
    
      hydrationParentFiber = fiber;
      nextHydratableInstance = getFirstHydratableChild(nextInstance);
    }
    
    function prepareToHydrateHostInstance(fiber, rootContainerInstance, hostContext) {
      if (!supportsHydration) {
        (function () {
          {
            {
              throw ReactError(Error("Expected prepareToHydrateHostInstance() to never be called. This error is likely caused by a bug in React. Please file an issue."));
            }
          }
        })();
      }
    
      var instance = fiber.stateNode;
      var updatePayload = hydrateInstance(instance, fiber.type, fiber.memoizedProps, rootContainerInstance, hostContext, fiber); // TODO: Type this specific to this type of component.
    
      fiber.updateQueue = updatePayload; // If the update payload indicates that there is a change or if there
      // is a new ref we mark this as an update.
    
      if (updatePayload !== null) {
        return true;
      }
    
      return false;
    }
    
    function prepareToHydrateHostTextInstance(fiber) {
      if (!supportsHydration) {
        (function () {
          {
            {
              throw ReactError(Error("Expected prepareToHydrateHostTextInstance() to never be called. This error is likely caused by a bug in React. Please file an issue."));
            }
          }
        })();
      }
    
      var textInstance = fiber.stateNode;
      var textContent = fiber.memoizedProps;
      var shouldUpdate = hydrateTextInstance(textInstance, textContent, fiber);
    
      {
        if (shouldUpdate) {
          // We assume that prepareToHydrateHostTextInstance is called in a context where the
          // hydration parent is the parent host component of this host text.
          var returnFiber = hydrationParentFiber;
    
          if (returnFiber !== null) {
            switch (returnFiber.tag) {
              case HostRoot:
                {
                  var parentContainer = returnFiber.stateNode.containerInfo;
                  didNotMatchHydratedContainerTextInstance(parentContainer, textInstance, textContent);
                  break;
                }
    
              case HostComponent:
                {
                  var parentType = returnFiber.type;
                  var parentProps = returnFiber.memoizedProps;
                  var parentInstance = returnFiber.stateNode;
                  didNotMatchHydratedTextInstance(parentType, parentProps, parentInstance, textInstance, textContent);
                  break;
                }
            }
          }
        }
      }
    
      return shouldUpdate;
    }
    
    function prepareToHydrateHostSuspenseInstance(fiber) {
      if (!supportsHydration) {
        (function () {
          {
            {
              throw ReactError(Error("Expected prepareToHydrateHostSuspenseInstance() to never be called. This error is likely caused by a bug in React. Please file an issue."));
            }
          }
        })();
      }
    
      var suspenseState = fiber.memoizedState;
      var suspenseInstance = suspenseState !== null ? suspenseState.dehydrated : null;
    
      (function () {
        if (!suspenseInstance) {
          {
            throw ReactError(Error("Expected to have a hydrated suspense instance. This error is likely caused by a bug in React. Please file an issue."));
          }
        }
      })();
    
      hydrateSuspenseInstance(suspenseInstance, fiber);
    }
    
    function skipPastDehydratedSuspenseInstance(fiber) {
      if (!supportsHydration) {
        (function () {
          {
            {
              throw ReactError(Error("Expected skipPastDehydratedSuspenseInstance() to never be called. This error is likely caused by a bug in React. Please file an issue."));
            }
          }
        })();
      }
    
      var suspenseState = fiber.memoizedState;
      var suspenseInstance = suspenseState !== null ? suspenseState.dehydrated : null;
    
      if (suspenseInstance === null) {
        // This Suspense boundary was hydrated without a match.
        return nextHydratableInstance;
      }
    
      return getNextHydratableInstanceAfterSuspenseInstance(suspenseInstance);
    }
    
    function popToNextHostParent(fiber) {
      var parent = fiber.return;
    
      while (parent !== null && parent.tag !== HostComponent && parent.tag !== HostRoot && parent.tag !== SuspenseComponent) {
        parent = parent.return;
      }
    
      hydrationParentFiber = parent;
    }
    
    function popHydrationState(fiber) {
      if (!supportsHydration) {
        return false;
      }
    
      if (fiber !== hydrationParentFiber) {
        // We're deeper than the current hydration context, inside an inserted
        // tree.
        return false;
      }
    
      if (!isHydrating) {
        // If we're not currently hydrating but we're in a hydration context, then
        // we were an insertion and now need to pop up reenter hydration of our
        // siblings.
        popToNextHostParent(fiber);
        isHydrating = true;
        return false;
      }
    
      var type = fiber.type; // If we have any remaining hydratable nodes, we need to delete them now.
      // We only do this deeper than head and body since they tend to have random
      // other nodes in them. We also ignore components with pure text content in
      // side of them.
      // TODO: Better heuristic.
    
      if (fiber.tag !== HostComponent || type !== 'head' && type !== 'body' && !shouldSetTextContent(type, fiber.memoizedProps)) {
        var nextInstance = nextHydratableInstance;
    
        while (nextInstance) {
          deleteHydratableInstance(fiber, nextInstance);
          nextInstance = getNextHydratableSibling(nextInstance);
        }
      }
    
      popToNextHostParent(fiber);
    
      if (fiber.tag === SuspenseComponent) {
        nextHydratableInstance = skipPastDehydratedSuspenseInstance(fiber);
      } else {
        nextHydratableInstance = hydrationParentFiber ? getNextHydratableSibling(fiber.stateNode) : null;
      }
    
      return true;
    }
    
    function resetHydrationState() {
      if (!supportsHydration) {
        return;
      }
    
      hydrationParentFiber = null;
      nextHydratableInstance = null;
      isHydrating = false;
    }
    
    var ReactCurrentOwner$3 = ReactSharedInternals.ReactCurrentOwner;
    var didReceiveUpdate = false;
    var didWarnAboutBadClass;
    var didWarnAboutModulePatternComponent;
    var didWarnAboutContextTypeOnFunctionComponent;
    var didWarnAboutGetDerivedStateOnFunctionComponent;
    var didWarnAboutFunctionRefs;
    var didWarnAboutReassigningProps;
    var didWarnAboutMaxDuration;
    var didWarnAboutRevealOrder;
    var didWarnAboutTailOptions;
    var didWarnAboutDefaultPropsOnFunctionComponent;
    
    {
      didWarnAboutBadClass = {};
      didWarnAboutModulePatternComponent = {};
      didWarnAboutContextTypeOnFunctionComponent = {};
      didWarnAboutGetDerivedStateOnFunctionComponent = {};
      didWarnAboutFunctionRefs = {};
      didWarnAboutReassigningProps = false;
      didWarnAboutMaxDuration = false;
      didWarnAboutRevealOrder = {};
      didWarnAboutTailOptions = {};
      didWarnAboutDefaultPropsOnFunctionComponent = {};
    }
    
    function reconcileChildren(current$$1, workInProgress, nextChildren, renderExpirationTime) {
      if (current$$1 === null) {
        // If this is a fresh new component that hasn't been rendered yet, we
        // won't update its child set by applying minimal side-effects. Instead,
        // we will add them all to the child before it gets rendered. That means
        // we can optimize this reconciliation pass by not tracking side-effects.
        workInProgress.child = mountChildFibers(workInProgress, null, nextChildren, renderExpirationTime);
      } else {
        // If the current child is the same as the work in progress, it means that
        // we haven't yet started any work on these children. Therefore, we use
        // the clone algorithm to create a copy of all the current children.
        // If we had any progressed work already, that is invalid at this point so
        // let's throw it out.
        workInProgress.child = reconcileChildFibers(workInProgress, current$$1.child, nextChildren, renderExpirationTime);
      }
    }
    
    function forceUnmountCurrentAndReconcile(current$$1, workInProgress, nextChildren, renderExpirationTime) {
      // This function is fork of reconcileChildren. It's used in cases where we
      // want to reconcile without matching against the existing set. This has the
      // effect of all current children being unmounted; even if the type and key
      // are the same, the old child is unmounted and a new child is created.
      //
      // To do this, we're going to go through the reconcile algorithm twice. In
      // the first pass, we schedule a deletion for all the current children by
      // passing null.
      workInProgress.child = reconcileChildFibers(workInProgress, current$$1.child, null, renderExpirationTime); // In the second pass, we mount the new children. The trick here is that we
      // pass null in place of where we usually pass the current child set. This has
      // the effect of remounting all children regardless of whether their their
      // identity matches.
    
      workInProgress.child = reconcileChildFibers(workInProgress, null, nextChildren, renderExpirationTime);
    }
    
    function updateForwardRef(current$$1, workInProgress, Component, nextProps, renderExpirationTime) {
      // TODO: current can be non-null here even if the component
      // hasn't yet mounted. This happens after the first render suspends.
      // We'll need to figure out if this is fine or can cause issues.
      {
        if (workInProgress.type !== workInProgress.elementType) {
          // Lazy component props can't be validated in createElement
          // because they're only guaranteed to be resolved here.
          var innerPropTypes = Component.propTypes;
    
          if (innerPropTypes) {
            checkPropTypes(innerPropTypes, nextProps, // Resolved props
            'prop', getComponentName(Component), getCurrentFiberStackInDev);
          }
        }
      }
    
      var render = Component.render;
      var ref = workInProgress.ref; // The rest is a fork of updateFunctionComponent
    
      var nextChildren;
      prepareToReadContext(workInProgress, renderExpirationTime);
    
      {
        ReactCurrentOwner$3.current = workInProgress;
        setCurrentPhase('render');
        nextChildren = renderWithHooks(current$$1, workInProgress, render, nextProps, ref, renderExpirationTime);
    
        if (debugRenderPhaseSideEffects || debugRenderPhaseSideEffectsForStrictMode && workInProgress.mode & StrictMode) {
          // Only double-render components with Hooks
          if (workInProgress.memoizedState !== null) {
            nextChildren = renderWithHooks(current$$1, workInProgress, render, nextProps, ref, renderExpirationTime);
          }
        }
    
        setCurrentPhase(null);
      }
    
      if (current$$1 !== null && !didReceiveUpdate) {
        bailoutHooks(current$$1, workInProgress, renderExpirationTime);
        return bailoutOnAlreadyFinishedWork(current$$1, workInProgress, renderExpirationTime);
      } // React DevTools reads this flag.
    
    
      workInProgress.effectTag |= PerformedWork;
      reconcileChildren(current$$1, workInProgress, nextChildren, renderExpirationTime);
      return workInProgress.child;
    }
    
    function updateMemoComponent(current$$1, workInProgress, Component, nextProps, updateExpirationTime, renderExpirationTime) {
      if (current$$1 === null) {
        var type = Component.type;
    
        if (isSimpleFunctionComponent(type) && Component.compare === null && // SimpleMemoComponent codepath doesn't resolve outer props either.
        Component.defaultProps === undefined) {
          var resolvedType = type;
    
          {
            resolvedType = resolveFunctionForHotReloading(type);
          } // If this is a plain function component without default props,
          // and with only the default shallow comparison, we upgrade it
          // to a SimpleMemoComponent to allow fast path updates.
    
    
          workInProgress.tag = SimpleMemoComponent;
          workInProgress.type = resolvedType;
    
          {
            validateFunctionComponentInDev(workInProgress, type);
          }
    
          return updateSimpleMemoComponent(current$$1, workInProgress, resolvedType, nextProps, updateExpirationTime, renderExpirationTime);
        }
    
        {
          var innerPropTypes = type.propTypes;
    
          if (innerPropTypes) {
            // Inner memo component props aren't currently validated in createElement.
            // We could move it there, but we'd still need this for lazy code path.
            checkPropTypes(innerPropTypes, nextProps, // Resolved props
            'prop', getComponentName(type), getCurrentFiberStackInDev);
          }
        }
    
        var child = createFiberFromTypeAndProps(Component.type, null, nextProps, null, workInProgress.mode, renderExpirationTime);
        child.ref = workInProgress.ref;
        child.return = workInProgress;
        workInProgress.child = child;
        return child;
      }
    
      {
        var _type = Component.type;
        var _innerPropTypes = _type.propTypes;
    
        if (_innerPropTypes) {
          // Inner memo component props aren't currently validated in createElement.
          // We could move it there, but we'd still need this for lazy code path.
          checkPropTypes(_innerPropTypes, nextProps, // Resolved props
          'prop', getComponentName(_type), getCurrentFiberStackInDev);
        }
      }
    
      var currentChild = current$$1.child; // This is always exactly one child
    
      if (updateExpirationTime < renderExpirationTime) {
        // This will be the props with resolved defaultProps,
        // unlike current.memoizedProps which will be the unresolved ones.
        var prevProps = currentChild.memoizedProps; // Default to shallow comparison
    
        var compare = Component.compare;
        compare = compare !== null ? compare : shallowEqual;
    
        if (compare(prevProps, nextProps) && current$$1.ref === workInProgress.ref) {
          return bailoutOnAlreadyFinishedWork(current$$1, workInProgress, renderExpirationTime);
        }
      } // React DevTools reads this flag.
    
    
      workInProgress.effectTag |= PerformedWork;
      var newChild = createWorkInProgress(currentChild, nextProps, renderExpirationTime);
      newChild.ref = workInProgress.ref;
      newChild.return = workInProgress;
      workInProgress.child = newChild;
      return newChild;
    }
    
    function updateSimpleMemoComponent(current$$1, workInProgress, Component, nextProps, updateExpirationTime, renderExpirationTime) {
      // TODO: current can be non-null here even if the component
      // hasn't yet mounted. This happens when the inner render suspends.
      // We'll need to figure out if this is fine or can cause issues.
      {
        if (workInProgress.type !== workInProgress.elementType) {
          // Lazy component props can't be validated in createElement
          // because they're only guaranteed to be resolved here.
          var outerMemoType = workInProgress.elementType;
    
          if (outerMemoType.$$typeof === REACT_LAZY_TYPE) {
            // We warn when you define propTypes on lazy()
            // so let's just skip over it to find memo() outer wrapper.
            // Inner props for memo are validated later.
            outerMemoType = refineResolvedLazyComponent(outerMemoType);
          }
    
          var outerPropTypes = outerMemoType && outerMemoType.propTypes;
    
          if (outerPropTypes) {
            checkPropTypes(outerPropTypes, nextProps, // Resolved (SimpleMemoComponent has no defaultProps)
            'prop', getComponentName(outerMemoType), getCurrentFiberStackInDev);
          } // Inner propTypes will be validated in the function component path.
    
        }
      }
    
      if (current$$1 !== null) {
        var prevProps = current$$1.memoizedProps;
    
        if (shallowEqual(prevProps, nextProps) && current$$1.ref === workInProgress.ref && ( // Prevent bailout if the implementation changed due to hot reload:
        workInProgress.type === current$$1.type)) {
          didReceiveUpdate = false;
    
          if (updateExpirationTime < renderExpirationTime) {
            return bailoutOnAlreadyFinishedWork(current$$1, workInProgress, renderExpirationTime);
          }
        }
      }
    
      return updateFunctionComponent(current$$1, workInProgress, Component, nextProps, renderExpirationTime);
    }
    
    function updateFragment(current$$1, workInProgress, renderExpirationTime) {
      var nextChildren = workInProgress.pendingProps;
      reconcileChildren(current$$1, workInProgress, nextChildren, renderExpirationTime);
      return workInProgress.child;
    }
    
    function updateMode(current$$1, workInProgress, renderExpirationTime) {
      var nextChildren = workInProgress.pendingProps.children;
      reconcileChildren(current$$1, workInProgress, nextChildren, renderExpirationTime);
      return workInProgress.child;
    }
    
    function updateProfiler(current$$1, workInProgress, renderExpirationTime) {
      if (enableProfilerTimer) {
        workInProgress.effectTag |= Update;
      }
    
      var nextProps = workInProgress.pendingProps;
      var nextChildren = nextProps.children;
      reconcileChildren(current$$1, workInProgress, nextChildren, renderExpirationTime);
      return workInProgress.child;
    }
    
    function markRef(current$$1, workInProgress) {
      var ref = workInProgress.ref;
    
      if (current$$1 === null && ref !== null || current$$1 !== null && current$$1.ref !== ref) {
        // Schedule a Ref effect
        workInProgress.effectTag |= Ref;
      }
    }
    
    function updateFunctionComponent(current$$1, workInProgress, Component, nextProps, renderExpirationTime) {
      {
        if (workInProgress.type !== workInProgress.elementType) {
          // Lazy component props can't be validated in createElement
          // because they're only guaranteed to be resolved here.
          var innerPropTypes = Component.propTypes;
    
          if (innerPropTypes) {
            checkPropTypes(innerPropTypes, nextProps, // Resolved props
            'prop', getComponentName(Component), getCurrentFiberStackInDev);
          }
        }
      }
    
      var context;
    
      if (!disableLegacyContext) {
        var unmaskedContext = getUnmaskedContext(workInProgress, Component, true);
        context = getMaskedContext(workInProgress, unmaskedContext);
      }
    
      var nextChildren;
      prepareToReadContext(workInProgress, renderExpirationTime);
    
      {
        ReactCurrentOwner$3.current = workInProgress;
        setCurrentPhase('render');
        nextChildren = renderWithHooks(current$$1, workInProgress, Component, nextProps, context, renderExpirationTime);
    
        if (debugRenderPhaseSideEffects || debugRenderPhaseSideEffectsForStrictMode && workInProgress.mode & StrictMode) {
          // Only double-render components with Hooks
          if (workInProgress.memoizedState !== null) {
            nextChildren = renderWithHooks(current$$1, workInProgress, Component, nextProps, context, renderExpirationTime);
          }
        }
    
        setCurrentPhase(null);
      }
    
      if (current$$1 !== null && !didReceiveUpdate) {
        bailoutHooks(current$$1, workInProgress, renderExpirationTime);
        return bailoutOnAlreadyFinishedWork(current$$1, workInProgress, renderExpirationTime);
      } // React DevTools reads this flag.
    
    
      workInProgress.effectTag |= PerformedWork;
      reconcileChildren(current$$1, workInProgress, nextChildren, renderExpirationTime);
      return workInProgress.child;
    }
    
    function updateClassComponent(current$$1, workInProgress, Component, nextProps, renderExpirationTime) {
      {
        if (workInProgress.type !== workInProgress.elementType) {
          // Lazy component props can't be validated in createElement
          // because they're only guaranteed to be resolved here.
          var innerPropTypes = Component.propTypes;
    
          if (innerPropTypes) {
            checkPropTypes(innerPropTypes, nextProps, // Resolved props
            'prop', getComponentName(Component), getCurrentFiberStackInDev);
          }
        }
      } // Push context providers early to prevent context stack mismatches.
      // During mounting we don't know the child context yet as the instance doesn't exist.
      // We will invalidate the child context in finishClassComponent() right after rendering.
    
    
      var hasContext;
    
      if (isContextProvider(Component)) {
        hasContext = true;
        pushContextProvider(workInProgress);
      } else {
        hasContext = false;
      }
    
      prepareToReadContext(workInProgress, renderExpirationTime);
      var instance = workInProgress.stateNode;
      var shouldUpdate;
    
      if (instance === null) {
        if (current$$1 !== null) {
          // An class component without an instance only mounts if it suspended
          // inside a non- concurrent tree, in an inconsistent state. We want to
          // tree it like a new mount, even though an empty version of it already
          // committed. Disconnect the alternate pointers.
          current$$1.alternate = null;
          workInProgress.alternate = null; // Since this is conceptually a new fiber, schedule a Placement effect
    
          workInProgress.effectTag |= Placement;
        } // In the initial pass we might need to construct the instance.
    
    
        constructClassInstance(workInProgress, Component, nextProps, renderExpirationTime);
        mountClassInstance(workInProgress, Component, nextProps, renderExpirationTime);
        shouldUpdate = true;
      } else if (current$$1 === null) {
        // In a resume, we'll already have an instance we can reuse.
        shouldUpdate = resumeMountClassInstance(workInProgress, Component, nextProps, renderExpirationTime);
      } else {
        shouldUpdate = updateClassInstance(current$$1, workInProgress, Component, nextProps, renderExpirationTime);
      }
    
      var nextUnitOfWork = finishClassComponent(current$$1, workInProgress, Component, shouldUpdate, hasContext, renderExpirationTime);
    
      {
        var inst = workInProgress.stateNode;
    
        if (inst.props !== nextProps) {
          !didWarnAboutReassigningProps ? warning$1(false, 'It looks like %s is reassigning its own `this.props` while rendering. ' + 'This is not supported and can lead to confusing bugs.', getComponentName(workInProgress.type) || 'a component') : void 0;
          didWarnAboutReassigningProps = true;
        }
      }
    
      return nextUnitOfWork;
    }
    
    function finishClassComponent(current$$1, workInProgress, Component, shouldUpdate, hasContext, renderExpirationTime) {
      // Refs should update even if shouldComponentUpdate returns false
      markRef(current$$1, workInProgress);
      var didCaptureError = (workInProgress.effectTag & DidCapture) !== NoEffect;
    
      if (!shouldUpdate && !didCaptureError) {
        // Context providers should defer to sCU for rendering
        if (hasContext) {
          invalidateContextProvider(workInProgress, Component, false);
        }
    
        return bailoutOnAlreadyFinishedWork(current$$1, workInProgress, renderExpirationTime);
      }
    
      var instance = workInProgress.stateNode; // Rerender
    
      ReactCurrentOwner$3.current = workInProgress;
      var nextChildren;
    
      if (didCaptureError && typeof Component.getDerivedStateFromError !== 'function') {
        // If we captured an error, but getDerivedStateFrom catch is not defined,
        // unmount all the children. componentDidCatch will schedule an update to
        // re-render a fallback. This is temporary until we migrate everyone to
        // the new API.
        // TODO: Warn in a future release.
        nextChildren = null;
    
        if (enableProfilerTimer) {
          stopProfilerTimerIfRunning(workInProgress);
        }
      } else {
        {
          setCurrentPhase('render');
          nextChildren = instance.render();
    
          if (debugRenderPhaseSideEffects || debugRenderPhaseSideEffectsForStrictMode && workInProgress.mode & StrictMode) {
            instance.render();
          }
    
          setCurrentPhase(null);
        }
      } // React DevTools reads this flag.
    
    
      workInProgress.effectTag |= PerformedWork;
    
      if (current$$1 !== null && didCaptureError) {
        // If we're recovering from an error, reconcile without reusing any of
        // the existing children. Conceptually, the normal children and the children
        // that are shown on error are two different sets, so we shouldn't reuse
        // normal children even if their identities match.
        forceUnmountCurrentAndReconcile(current$$1, workInProgress, nextChildren, renderExpirationTime);
      } else {
        reconcileChildren(current$$1, workInProgress, nextChildren, renderExpirationTime);
      } // Memoize state using the values we just used to render.
      // TODO: Restructure so we never read values from the instance.
    
    
      workInProgress.memoizedState = instance.state; // The context might have changed so we need to recalculate it.
    
      if (hasContext) {
        invalidateContextProvider(workInProgress, Component, true);
      }
    
      return workInProgress.child;
    }
    
    function pushHostRootContext(workInProgress) {
      var root = workInProgress.stateNode;
    
      if (root.pendingContext) {
        pushTopLevelContextObject(workInProgress, root.pendingContext, root.pendingContext !== root.context);
      } else if (root.context) {
        // Should always be set
        pushTopLevelContextObject(workInProgress, root.context, false);
      }
    
      pushHostContainer(workInProgress, root.containerInfo);
    }
    
    function updateHostRoot(current$$1, workInProgress, renderExpirationTime) {
      pushHostRootContext(workInProgress);
      var updateQueue = workInProgress.updateQueue;
    
      (function () {
        if (!(updateQueue !== null)) {
          {
            throw ReactError(Error("If the root does not have an updateQueue, we should have already bailed out. This error is likely caused by a bug in React. Please file an issue."));
          }
        }
      })();
    
      var nextProps = workInProgress.pendingProps;
      var prevState = workInProgress.memoizedState;
      var prevChildren = prevState !== null ? prevState.element : null;
      processUpdateQueue(workInProgress, updateQueue, nextProps, null, renderExpirationTime);
      var nextState = workInProgress.memoizedState; // Caution: React DevTools currently depends on this property
      // being called "element".
    
      var nextChildren = nextState.element;
    
      if (nextChildren === prevChildren) {
        // If the state is the same as before, that's a bailout because we had
        // no work that expires at this time.
        resetHydrationState();
        return bailoutOnAlreadyFinishedWork(current$$1, workInProgress, renderExpirationTime);
      }
    
      var root = workInProgress.stateNode;
    
      if (root.hydrate && enterHydrationState(workInProgress)) {
        // If we don't have any current children this might be the first pass.
        // We always try to hydrate. If this isn't a hydration pass there won't
        // be any children to hydrate which is effectively the same thing as
        // not hydrating.
        var child = mountChildFibers(workInProgress, null, nextChildren, renderExpirationTime);
        workInProgress.child = child;
        var node = child;
    
        while (node) {
          // Mark each child as hydrating. This is a fast path to know whether this
          // tree is part of a hydrating tree. This is used to determine if a child
          // node has fully mounted yet, and for scheduling event replaying.
          // Conceptually this is similar to Placement in that a new subtree is
          // inserted into the React tree here. It just happens to not need DOM
          // mutations because it already exists.
          node.effectTag = node.effectTag & ~Placement | Hydrating;
          node = node.sibling;
        }
      } else {
        // Otherwise reset hydration state in case we aborted and resumed another
        // root.
        reconcileChildren(current$$1, workInProgress, nextChildren, renderExpirationTime);
        resetHydrationState();
      }
    
      return workInProgress.child;
    }
    
    function updateHostComponent(current$$1, workInProgress, renderExpirationTime) {
      pushHostContext(workInProgress);
    
      if (current$$1 === null) {
        tryToClaimNextHydratableInstance(workInProgress);
      }
    
      var type = workInProgress.type;
      var nextProps = workInProgress.pendingProps;
      var prevProps = current$$1 !== null ? current$$1.memoizedProps : null;
      var nextChildren = nextProps.children;
      var isDirectTextChild = shouldSetTextContent(type, nextProps);
    
      if (isDirectTextChild) {
        // We special case a direct text child of a host node. This is a common
        // case. We won't handle it as a reified child. We will instead handle
        // this in the host environment that also have access to this prop. That
        // avoids allocating another HostText fiber and traversing it.
        nextChildren = null;
      } else if (prevProps !== null && shouldSetTextContent(type, prevProps)) {
        // If we're switching from a direct text child to a normal child, or to
        // empty, we need to schedule the text content to be reset.
        workInProgress.effectTag |= ContentReset;
      }
    
      markRef(current$$1, workInProgress); // Check the host config to see if the children are offscreen/hidden.
    
      if (workInProgress.mode & ConcurrentMode && renderExpirationTime !== Never && shouldDeprioritizeSubtree(type, nextProps)) {
        if (enableSchedulerTracing) {
          markSpawnedWork(Never);
        } // Schedule this fiber to re-render at offscreen priority. Then bailout.
    
    
        workInProgress.expirationTime = workInProgress.childExpirationTime = Never;
        return null;
      }
    
      reconcileChildren(current$$1, workInProgress, nextChildren, renderExpirationTime);
      return workInProgress.child;
    }
    
    function updateHostText(current$$1, workInProgress) {
      if (current$$1 === null) {
        tryToClaimNextHydratableInstance(workInProgress);
      } // Nothing to do here. This is terminal. We'll do the completion step
      // immediately after.
    
    
      return null;
    }
    
    function mountLazyComponent(_current, workInProgress, elementType, updateExpirationTime, renderExpirationTime) {
      if (_current !== null) {
        // An lazy component only mounts if it suspended inside a non-
        // concurrent tree, in an inconsistent state. We want to treat it like
        // a new mount, even though an empty version of it already committed.
        // Disconnect the alternate pointers.
        _current.alternate = null;
        workInProgress.alternate = null; // Since this is conceptually a new fiber, schedule a Placement effect
    
        workInProgress.effectTag |= Placement;
      }
    
      var props = workInProgress.pendingProps; // We can't start a User Timing measurement with correct label yet.
      // Cancel and resume right after we know the tag.
    
      cancelWorkTimer(workInProgress);
      var Component = readLazyComponentType(elementType); // Store the unwrapped component in the type.
    
      workInProgress.type = Component;
      var resolvedTag = workInProgress.tag = resolveLazyComponentTag(Component);
      startWorkTimer(workInProgress);
      var resolvedProps = resolveDefaultProps(Component, props);
      var child;
    
      switch (resolvedTag) {
        case FunctionComponent:
          {
            {
              validateFunctionComponentInDev(workInProgress, Component);
              workInProgress.type = Component = resolveFunctionForHotReloading(Component);
            }
    
            child = updateFunctionComponent(null, workInProgress, Component, resolvedProps, renderExpirationTime);
            break;
          }
    
        case ClassComponent:
          {
            {
              workInProgress.type = Component = resolveClassForHotReloading(Component);
            }
    
            child = updateClassComponent(null, workInProgress, Component, resolvedProps, renderExpirationTime);
            break;
          }
    
        case ForwardRef:
          {
            {
              workInProgress.type = Component = resolveForwardRefForHotReloading(Component);
            }
    
            child = updateForwardRef(null, workInProgress, Component, resolvedProps, renderExpirationTime);
            break;
          }
    
        case MemoComponent:
          {
            {
              if (workInProgress.type !== workInProgress.elementType) {
                var outerPropTypes = Component.propTypes;
    
                if (outerPropTypes) {
                  checkPropTypes(outerPropTypes, resolvedProps, // Resolved for outer only
                  'prop', getComponentName(Component), getCurrentFiberStackInDev);
                }
              }
            }
    
            child = updateMemoComponent(null, workInProgress, Component, resolveDefaultProps(Component.type, resolvedProps), // The inner type can have defaults too
            updateExpirationTime, renderExpirationTime);
            break;
          }
    
        default:
          {
            var hint = '';
    
            {
              if (Component !== null && typeof Component === 'object' && Component.$$typeof === REACT_LAZY_TYPE) {
                hint = ' Did you wrap a component in React.lazy() more than once?';
              }
            } // This message intentionally doesn't mention ForwardRef or MemoComponent
            // because the fact that it's a separate type of work is an
            // implementation detail.
    
    
            (function () {
              {
                {
                  throw ReactError(Error("Element type is invalid. Received a promise that resolves to: " + Component + ". Lazy element type must resolve to a class or function." + hint));
                }
              }
            })();
          }
      }
    
      return child;
    }
    
    function mountIncompleteClassComponent(_current, workInProgress, Component, nextProps, renderExpirationTime) {
      if (_current !== null) {
        // An incomplete component only mounts if it suspended inside a non-
        // concurrent tree, in an inconsistent state. We want to treat it like
        // a new mount, even though an empty version of it already committed.
        // Disconnect the alternate pointers.
        _current.alternate = null;
        workInProgress.alternate = null; // Since this is conceptually a new fiber, schedule a Placement effect
    
        workInProgress.effectTag |= Placement;
      } // Promote the fiber to a class and try rendering again.
    
    
      workInProgress.tag = ClassComponent; // The rest of this function is a fork of `updateClassComponent`
      // Push context providers early to prevent context stack mismatches.
      // During mounting we don't know the child context yet as the instance doesn't exist.
      // We will invalidate the child context in finishClassComponent() right after rendering.
    
      var hasContext;
    
      if (isContextProvider(Component)) {
        hasContext = true;
        pushContextProvider(workInProgress);
      } else {
        hasContext = false;
      }
    
      prepareToReadContext(workInProgress, renderExpirationTime);
      constructClassInstance(workInProgress, Component, nextProps, renderExpirationTime);
      mountClassInstance(workInProgress, Component, nextProps, renderExpirationTime);
      return finishClassComponent(null, workInProgress, Component, true, hasContext, renderExpirationTime);
    }
    
    function mountIndeterminateComponent(_current, workInProgress, Component, renderExpirationTime) {
      if (_current !== null) {
        // An indeterminate component only mounts if it suspended inside a non-
        // concurrent tree, in an inconsistent state. We want to treat it like
        // a new mount, even though an empty version of it already committed.
        // Disconnect the alternate pointers.
        _current.alternate = null;
        workInProgress.alternate = null; // Since this is conceptually a new fiber, schedule a Placement effect
    
        workInProgress.effectTag |= Placement;
      }
    
      var props = workInProgress.pendingProps;
      var context;
    
      if (!disableLegacyContext) {
        var unmaskedContext = getUnmaskedContext(workInProgress, Component, false);
        context = getMaskedContext(workInProgress, unmaskedContext);
      }
    
      prepareToReadContext(workInProgress, renderExpirationTime);
      var value;
    
      {
        if (Component.prototype && typeof Component.prototype.render === 'function') {
          var componentName = getComponentName(Component) || 'Unknown';
    
          if (!didWarnAboutBadClass[componentName]) {
            warningWithoutStack$1(false, "The <%s /> component appears to have a render method, but doesn't extend React.Component. " + 'This is likely to cause errors. Change %s to extend React.Component instead.', componentName, componentName);
            didWarnAboutBadClass[componentName] = true;
          }
        }
    
        if (workInProgress.mode & StrictMode) {
          ReactStrictModeWarnings.recordLegacyContextWarning(workInProgress, null);
        }
    
        ReactCurrentOwner$3.current = workInProgress;
        value = renderWithHooks(null, workInProgress, Component, props, context, renderExpirationTime);
      } // React DevTools reads this flag.
    
    
      workInProgress.effectTag |= PerformedWork;
    
      if (typeof value === 'object' && value !== null && typeof value.render === 'function' && value.$$typeof === undefined) {
        {
          var _componentName = getComponentName(Component) || 'Unknown';
    
          if (!didWarnAboutModulePatternComponent[_componentName]) {
            warningWithoutStack$1(false, 'The <%s /> component appears to be a function component that returns a class instance. ' + 'Change %s to a class that extends React.Component instead. ' + "If you can't use a class try assigning the prototype on the function as a workaround. " + "`%s.prototype = React.Component.prototype`. Don't use an arrow function since it " + 'cannot be called with `new` by React.', _componentName, _componentName, _componentName);
            didWarnAboutModulePatternComponent[_componentName] = true;
          }
        } // Proceed under the assumption that this is a class instance
    
    
        workInProgress.tag = ClassComponent; // Throw out any hooks that were used.
    
        resetHooks(); // Push context providers early to prevent context stack mismatches.
        // During mounting we don't know the child context yet as the instance doesn't exist.
        // We will invalidate the child context in finishClassComponent() right after rendering.
    
        var hasContext = false;
    
        if (isContextProvider(Component)) {
          hasContext = true;
          pushContextProvider(workInProgress);
        } else {
          hasContext = false;
        }
    
        workInProgress.memoizedState = value.state !== null && value.state !== undefined ? value.state : null;
        var getDerivedStateFromProps = Component.getDerivedStateFromProps;
    
        if (typeof getDerivedStateFromProps === 'function') {
          applyDerivedStateFromProps(workInProgress, Component, getDerivedStateFromProps, props);
        }
    
        adoptClassInstance(workInProgress, value);
        mountClassInstance(workInProgress, Component, props, renderExpirationTime);
        return finishClassComponent(null, workInProgress, Component, true, hasContext, renderExpirationTime);
      } else {
        // Proceed under the assumption that this is a function component
        workInProgress.tag = FunctionComponent;
    
        {
          if (disableLegacyContext && Component.contextTypes) {
            warningWithoutStack$1(false, '%s uses the legacy contextTypes API which is no longer supported. ' + 'Use React.createContext() with React.useContext() instead.', getComponentName(Component) || 'Unknown');
          }
    
          if (debugRenderPhaseSideEffects || debugRenderPhaseSideEffectsForStrictMode && workInProgress.mode & StrictMode) {
            // Only double-render components with Hooks
            if (workInProgress.memoizedState !== null) {
              value = renderWithHooks(null, workInProgress, Component, props, context, renderExpirationTime);
            }
          }
        }
    
        reconcileChildren(null, workInProgress, value, renderExpirationTime);
    
        {
          validateFunctionComponentInDev(workInProgress, Component);
        }
    
        return workInProgress.child;
      }
    }
    
    function validateFunctionComponentInDev(workInProgress, Component) {
      if (Component) {
        !!Component.childContextTypes ? warningWithoutStack$1(false, '%s(...): childContextTypes cannot be defined on a function component.', Component.displayName || Component.name || 'Component') : void 0;
      }
    
      if (workInProgress.ref !== null) {
        var info = '';
        var ownerName = getCurrentFiberOwnerNameInDevOrNull();
    
        if (ownerName) {
          info += '\n\nCheck the render method of `' + ownerName + '`.';
        }
    
        var warningKey = ownerName || workInProgress._debugID || '';
        var debugSource = workInProgress._debugSource;
    
        if (debugSource) {
          warningKey = debugSource.fileName + ':' + debugSource.lineNumber;
        }
    
        if (!didWarnAboutFunctionRefs[warningKey]) {
          didWarnAboutFunctionRefs[warningKey] = true;
          warning$1(false, 'Function components cannot be given refs. ' + 'Attempts to access this ref will fail. ' + 'Did you mean to use React.forwardRef()?%s', info);
        }
      }
    
      if (warnAboutDefaultPropsOnFunctionComponents && Component.defaultProps !== undefined) {
        var componentName = getComponentName(Component) || 'Unknown';
    
        if (!didWarnAboutDefaultPropsOnFunctionComponent[componentName]) {
          warningWithoutStack$1(false, '%s: Support for defaultProps will be removed from function components ' + 'in a future major release. Use JavaScript default parameters instead.', componentName);
          didWarnAboutDefaultPropsOnFunctionComponent[componentName] = true;
        }
      }
    
      if (typeof Component.getDerivedStateFromProps === 'function') {
        var _componentName2 = getComponentName(Component) || 'Unknown';
    
        if (!didWarnAboutGetDerivedStateOnFunctionComponent[_componentName2]) {
          warningWithoutStack$1(false, '%s: Function components do not support getDerivedStateFromProps.', _componentName2);
          didWarnAboutGetDerivedStateOnFunctionComponent[_componentName2] = true;
        }
      }
    
      if (typeof Component.contextType === 'object' && Component.contextType !== null) {
        var _componentName3 = getComponentName(Component) || 'Unknown';
    
        if (!didWarnAboutContextTypeOnFunctionComponent[_componentName3]) {
          warningWithoutStack$1(false, '%s: Function components do not support contextType.', _componentName3);
          didWarnAboutContextTypeOnFunctionComponent[_componentName3] = true;
        }
      }
    }
    
    var SUSPENDED_MARKER = {
      dehydrated: null,
      retryTime: Never
    };
    
    function shouldRemainOnFallback(suspenseContext, current$$1, workInProgress) {
      // If the context is telling us that we should show a fallback, and we're not
      // already showing content, then we should show the fallback instead.
      return hasSuspenseContext(suspenseContext, ForceSuspenseFallback) && (current$$1 === null || current$$1.memoizedState !== null);
    }
    
    function updateSuspenseComponent(current$$1, workInProgress, renderExpirationTime) {
      var mode = workInProgress.mode;
      var nextProps = workInProgress.pendingProps; // This is used by DevTools to force a boundary to suspend.
    
      {
        if (shouldSuspend(workInProgress)) {
          workInProgress.effectTag |= DidCapture;
        }
      }
    
      var suspenseContext = suspenseStackCursor.current;
      var nextDidTimeout = false;
      var didSuspend = (workInProgress.effectTag & DidCapture) !== NoEffect;
    
      if (didSuspend || shouldRemainOnFallback(suspenseContext, current$$1, workInProgress)) {
        // Something in this boundary's subtree already suspended. Switch to
        // rendering the fallback children.
        nextDidTimeout = true;
        workInProgress.effectTag &= ~DidCapture;
      } else {
        // Attempting the main content
        if (current$$1 === null || current$$1.memoizedState !== null) {
          // This is a new mount or this boundary is already showing a fallback state.
          // Mark this subtree context as having at least one invisible parent that could
          // handle the fallback state.
          // Boundaries without fallbacks or should be avoided are not considered since
          // they cannot handle preferred fallback states.
          if (nextProps.fallback !== undefined && nextProps.unstable_avoidThisFallback !== true) {
            suspenseContext = addSubtreeSuspenseContext(suspenseContext, InvisibleParentSuspenseContext);
          }
        }
      }
    
      suspenseContext = setDefaultShallowSuspenseContext(suspenseContext);
      pushSuspenseContext(workInProgress, suspenseContext);
    
      {
        if ('maxDuration' in nextProps) {
          if (!didWarnAboutMaxDuration) {
            didWarnAboutMaxDuration = true;
            warning$1(false, 'maxDuration has been removed from React. ' + 'Remove the maxDuration prop.');
          }
        }
      } // This next part is a bit confusing. If the children timeout, we switch to
      // showing the fallback children in place of the "primary" children.
      // However, we don't want to delete the primary children because then their
      // state will be lost (both the React state and the host state, e.g.
      // uncontrolled form inputs). Instead we keep them mounted and hide them.
      // Both the fallback children AND the primary children are rendered at the
      // same time. Once the primary children are un-suspended, we can delete
      // the fallback children — don't need to preserve their state.
      //
      // The two sets of children are siblings in the host environment, but
      // semantically, for purposes of reconciliation, they are two separate sets.
      // So we store them using two fragment fibers.
      //
      // However, we want to avoid allocating extra fibers for every placeholder.
      // They're only necessary when the children time out, because that's the
      // only time when both sets are mounted.
      //
      // So, the extra fragment fibers are only used if the children time out.
      // Otherwise, we render the primary children directly. This requires some
      // custom reconciliation logic to preserve the state of the primary
      // children. It's essentially a very basic form of re-parenting.
    
    
      if (current$$1 === null) {
        if (enableSuspenseServerRenderer) {
          // If we're currently hydrating, try to hydrate this boundary.
          // But only if this has a fallback.
          if (nextProps.fallback !== undefined) {
            tryToClaimNextHydratableInstance(workInProgress); // This could've been a dehydrated suspense component.
    
            var suspenseState = workInProgress.memoizedState;
    
            if (suspenseState !== null) {
              var dehydrated = suspenseState.dehydrated;
    
              if (dehydrated !== null) {
                return mountDehydratedSuspenseComponent(workInProgress, dehydrated, renderExpirationTime);
              }
            }
          }
        } // This is the initial mount. This branch is pretty simple because there's
        // no previous state that needs to be preserved.
    
    
        if (nextDidTimeout) {
          // Mount separate fragments for primary and fallback children.
          var nextFallbackChildren = nextProps.fallback;
          var primaryChildFragment = createFiberFromFragment(null, mode, NoWork, null);
          primaryChildFragment.return = workInProgress;
    
          if ((workInProgress.mode & BatchedMode) === NoMode) {
            // Outside of batched mode, we commit the effects from the
            // partially completed, timed-out tree, too.
            var progressedState = workInProgress.memoizedState;
            var progressedPrimaryChild = progressedState !== null ? workInProgress.child.child : workInProgress.child;
            primaryChildFragment.child = progressedPrimaryChild;
            var progressedChild = progressedPrimaryChild;
    
            while (progressedChild !== null) {
              progressedChild.return = primaryChildFragment;
              progressedChild = progressedChild.sibling;
            }
          }
    
          var fallbackChildFragment = createFiberFromFragment(nextFallbackChildren, mode, renderExpirationTime, null);
          fallbackChildFragment.return = workInProgress;
          primaryChildFragment.sibling = fallbackChildFragment; // Skip the primary children, and continue working on the
          // fallback children.
    
          workInProgress.memoizedState = SUSPENDED_MARKER;
          workInProgress.child = primaryChildFragment;
          return fallbackChildFragment;
        } else {
          // Mount the primary children without an intermediate fragment fiber.
          var nextPrimaryChildren = nextProps.children;
          workInProgress.memoizedState = null;
          return workInProgress.child = mountChildFibers(workInProgress, null, nextPrimaryChildren, renderExpirationTime);
        }
      } else {
        // This is an update. This branch is more complicated because we need to
        // ensure the state of the primary children is preserved.
        var prevState = current$$1.memoizedState;
    
        if (prevState !== null) {
          if (enableSuspenseServerRenderer) {
            var _dehydrated = prevState.dehydrated;
    
            if (_dehydrated !== null) {
              if (!didSuspend) {
                return updateDehydratedSuspenseComponent(current$$1, workInProgress, _dehydrated, prevState, renderExpirationTime);
              } else if (workInProgress.memoizedState !== null) {
                // Something suspended and we should still be in dehydrated mode.
                // Leave the existing child in place.
                workInProgress.child = current$$1.child; // The dehydrated completion pass expects this flag to be there
                // but the normal suspense pass doesn't.
    
                workInProgress.effectTag |= DidCapture;
                return null;
              } else {
                // Suspended but we should no longer be in dehydrated mode.
                // Therefore we now have to render the fallback. Wrap the children
                // in a fragment fiber to keep them separate from the fallback
                // children.
                var _nextFallbackChildren = nextProps.fallback;
    
                var _primaryChildFragment = createFiberFromFragment( // It shouldn't matter what the pending props are because we aren't
                // going to render this fragment.
                null, mode, NoWork, null);
    
                _primaryChildFragment.return = workInProgress; // This is always null since we never want the previous child
                // that we're not going to hydrate.
    
                _primaryChildFragment.child = null;
    
                if ((workInProgress.mode & BatchedMode) === NoMode) {
                  // Outside of batched mode, we commit the effects from the
                  // partially completed, timed-out tree, too.
                  var _progressedChild = _primaryChildFragment.child = workInProgress.child;
    
                  while (_progressedChild !== null) {
                    _progressedChild.return = _primaryChildFragment;
                    _progressedChild = _progressedChild.sibling;
                  }
                } else {
                  // We will have dropped the effect list which contains the deletion.
                  // We need to reconcile to delete the current child.
                  reconcileChildFibers(workInProgress, current$$1.child, null, renderExpirationTime);
                } // Because primaryChildFragment is a new fiber that we're inserting as the
                // parent of a new tree, we need to set its treeBaseDuration.
    
    
                if (enableProfilerTimer && workInProgress.mode & ProfileMode) {
                  // treeBaseDuration is the sum of all the child tree base durations.
                  var treeBaseDuration = 0;
                  var hiddenChild = _primaryChildFragment.child;
    
                  while (hiddenChild !== null) {
                    treeBaseDuration += hiddenChild.treeBaseDuration;
                    hiddenChild = hiddenChild.sibling;
                  }
    
                  _primaryChildFragment.treeBaseDuration = treeBaseDuration;
                } // Create a fragment from the fallback children, too.
    
    
                var _fallbackChildFragment = createFiberFromFragment(_nextFallbackChildren, mode, renderExpirationTime, null);
    
                _fallbackChildFragment.return = workInProgress;
                _primaryChildFragment.sibling = _fallbackChildFragment;
                _fallbackChildFragment.effectTag |= Placement;
                _primaryChildFragment.childExpirationTime = NoWork;
                workInProgress.memoizedState = SUSPENDED_MARKER;
                workInProgress.child = _primaryChildFragment; // Skip the primary children, and continue working on the
                // fallback children.
    
                return _fallbackChildFragment;
              }
            }
          } // The current tree already timed out. That means each child set is
          // wrapped in a fragment fiber.
    
    
          var currentPrimaryChildFragment = current$$1.child;
          var currentFallbackChildFragment = currentPrimaryChildFragment.sibling;
    
          if (nextDidTimeout) {
            // Still timed out. Reuse the current primary children by cloning
            // its fragment. We're going to skip over these entirely.
            var _nextFallbackChildren2 = nextProps.fallback;
    
            var _primaryChildFragment2 = createWorkInProgress(currentPrimaryChildFragment, currentPrimaryChildFragment.pendingProps, NoWork);
    
            _primaryChildFragment2.return = workInProgress;
    
            if ((workInProgress.mode & BatchedMode) === NoMode) {
              // Outside of batched mode, we commit the effects from the
              // partially completed, timed-out tree, too.
              var _progressedState = workInProgress.memoizedState;
    
              var _progressedPrimaryChild = _progressedState !== null ? workInProgress.child.child : workInProgress.child;
    
              if (_progressedPrimaryChild !== currentPrimaryChildFragment.child) {
                _primaryChildFragment2.child = _progressedPrimaryChild;
                var _progressedChild2 = _progressedPrimaryChild;
    
                while (_progressedChild2 !== null) {
                  _progressedChild2.return = _primaryChildFragment2;
                  _progressedChild2 = _progressedChild2.sibling;
                }
              }
            } // Because primaryChildFragment is a new fiber that we're inserting as the
            // parent of a new tree, we need to set its treeBaseDuration.
    
    
            if (enableProfilerTimer && workInProgress.mode & ProfileMode) {
              // treeBaseDuration is the sum of all the child tree base durations.
              var _treeBaseDuration = 0;
              var _hiddenChild = _primaryChildFragment2.child;
    
              while (_hiddenChild !== null) {
                _treeBaseDuration += _hiddenChild.treeBaseDuration;
                _hiddenChild = _hiddenChild.sibling;
              }
    
              _primaryChildFragment2.treeBaseDuration = _treeBaseDuration;
            } // Clone the fallback child fragment, too. These we'll continue
            // working on.
    
    
            var _fallbackChildFragment2 = createWorkInProgress(currentFallbackChildFragment, _nextFallbackChildren2, currentFallbackChildFragment.expirationTime);
    
            _fallbackChildFragment2.return = workInProgress;
            _primaryChildFragment2.sibling = _fallbackChildFragment2;
            _primaryChildFragment2.childExpirationTime = NoWork; // Skip the primary children, and continue working on the
            // fallback children.
    
            workInProgress.memoizedState = SUSPENDED_MARKER;
            workInProgress.child = _primaryChildFragment2;
            return _fallbackChildFragment2;
          } else {
            // No longer suspended. Switch back to showing the primary children,
            // and remove the intermediate fragment fiber.
            var _nextPrimaryChildren = nextProps.children;
            var currentPrimaryChild = currentPrimaryChildFragment.child;
            var primaryChild = reconcileChildFibers(workInProgress, currentPrimaryChild, _nextPrimaryChildren, renderExpirationTime); // If this render doesn't suspend, we need to delete the fallback
            // children. Wait until the complete phase, after we've confirmed the
            // fallback is no longer needed.
            // TODO: Would it be better to store the fallback fragment on
            // the stateNode?
            // Continue rendering the children, like we normally do.
    
            workInProgress.memoizedState = null;
            return workInProgress.child = primaryChild;
          }
        } else {
          // The current tree has not already timed out. That means the primary
          // children are not wrapped in a fragment fiber.
          var _currentPrimaryChild = current$$1.child;
    
          if (nextDidTimeout) {
            // Timed out. Wrap the children in a fragment fiber to keep them
            // separate from the fallback children.
            var _nextFallbackChildren3 = nextProps.fallback;
    
            var _primaryChildFragment3 = createFiberFromFragment( // It shouldn't matter what the pending props are because we aren't
            // going to render this fragment.
            null, mode, NoWork, null);
    
            _primaryChildFragment3.return = workInProgress;
            _primaryChildFragment3.child = _currentPrimaryChild;
    
            if (_currentPrimaryChild !== null) {
              _currentPrimaryChild.return = _primaryChildFragment3;
            } // Even though we're creating a new fiber, there are no new children,
            // because we're reusing an already mounted tree. So we don't need to
            // schedule a placement.
            // primaryChildFragment.effectTag |= Placement;
    
    
            if ((workInProgress.mode & BatchedMode) === NoMode) {
              // Outside of batched mode, we commit the effects from the
              // partially completed, timed-out tree, too.
              var _progressedState2 = workInProgress.memoizedState;
    
              var _progressedPrimaryChild2 = _progressedState2 !== null ? workInProgress.child.child : workInProgress.child;
    
              _primaryChildFragment3.child = _progressedPrimaryChild2;
              var _progressedChild3 = _progressedPrimaryChild2;
    
              while (_progressedChild3 !== null) {
                _progressedChild3.return = _primaryChildFragment3;
                _progressedChild3 = _progressedChild3.sibling;
              }
            } // Because primaryChildFragment is a new fiber that we're inserting as the
            // parent of a new tree, we need to set its treeBaseDuration.
    
    
            if (enableProfilerTimer && workInProgress.mode & ProfileMode) {
              // treeBaseDuration is the sum of all the child tree base durations.
              var _treeBaseDuration2 = 0;
              var _hiddenChild2 = _primaryChildFragment3.child;
    
              while (_hiddenChild2 !== null) {
                _treeBaseDuration2 += _hiddenChild2.treeBaseDuration;
                _hiddenChild2 = _hiddenChild2.sibling;
              }
    
              _primaryChildFragment3.treeBaseDuration = _treeBaseDuration2;
            } // Create a fragment from the fallback children, too.
    
    
            var _fallbackChildFragment3 = createFiberFromFragment(_nextFallbackChildren3, mode, renderExpirationTime, null);
    
            _fallbackChildFragment3.return = workInProgress;
            _primaryChildFragment3.sibling = _fallbackChildFragment3;
            _fallbackChildFragment3.effectTag |= Placement;
            _primaryChildFragment3.childExpirationTime = NoWork; // Skip the primary children, and continue working on the
            // fallback children.
    
            workInProgress.memoizedState = SUSPENDED_MARKER;
            workInProgress.child = _primaryChildFragment3;
            return _fallbackChildFragment3;
          } else {
            // Still haven't timed out.  Continue rendering the children, like we
            // normally do.
            workInProgress.memoizedState = null;
            var _nextPrimaryChildren2 = nextProps.children;
            return workInProgress.child = reconcileChildFibers(workInProgress, _currentPrimaryChild, _nextPrimaryChildren2, renderExpirationTime);
          }
        }
      }
    }
    
    function retrySuspenseComponentWithoutHydrating(current$$1, workInProgress, renderExpirationTime) {
      // We're now not suspended nor dehydrated.
      workInProgress.memoizedState = null; // Retry with the full children.
    
      var nextProps = workInProgress.pendingProps;
      var nextChildren = nextProps.children; // This will ensure that the children get Placement effects and
      // that the old child gets a Deletion effect.
      // We could also call forceUnmountCurrentAndReconcile.
    
      reconcileChildren(current$$1, workInProgress, nextChildren, renderExpirationTime);
      return workInProgress.child;
    }
    
    function mountDehydratedSuspenseComponent(workInProgress, suspenseInstance, renderExpirationTime) {
      // During the first pass, we'll bail out and not drill into the children.
      // Instead, we'll leave the content in place and try to hydrate it later.
      if ((workInProgress.mode & BatchedMode) === NoMode) {
        {
          warning$1(false, 'Cannot hydrate Suspense in legacy mode. Switch from ' + 'ReactDOM.hydrate(element, container) to ' + 'ReactDOM.unstable_createSyncRoot(container, { hydrate: true })' + '.render(element) or remove the Suspense components from ' + 'the server rendered components.');
        }
    
        workInProgress.expirationTime = Sync;
      } else if (isSuspenseInstanceFallback(suspenseInstance)) {
        // This is a client-only boundary. Since we won't get any content from the server
        // for this, we need to schedule that at a higher priority based on when it would
        // have timed out. In theory we could render it in this pass but it would have the
        // wrong priority associated with it and will prevent hydration of parent path.
        // Instead, we'll leave work left on it to render it in a separate commit.
        // TODO This time should be the time at which the server rendered response that is
        // a parent to this boundary was displayed. However, since we currently don't have
        // a protocol to transfer that time, we'll just estimate it by using the current
        // time. This will mean that Suspense timeouts are slightly shifted to later than
        // they should be.
        var serverDisplayTime = requestCurrentTime(); // Schedule a normal pri update to render this content.
    
        var newExpirationTime = computeAsyncExpiration(serverDisplayTime);
    
        if (enableSchedulerTracing) {
          markSpawnedWork(newExpirationTime);
        }
    
        workInProgress.expirationTime = newExpirationTime;
      } else {
        // We'll continue hydrating the rest at offscreen priority since we'll already
        // be showing the right content coming from the server, it is no rush.
        workInProgress.expirationTime = Never;
    
        if (enableSchedulerTracing) {
          markSpawnedWork(Never);
        }
      }
    
      return null;
    }
    
    function updateDehydratedSuspenseComponent(current$$1, workInProgress, suspenseInstance, suspenseState, renderExpirationTime) {
      // We should never be hydrating at this point because it is the first pass,
      // but after we've already committed once.
      warnIfHydrating();
    
      if ((workInProgress.mode & BatchedMode) === NoMode) {
        return retrySuspenseComponentWithoutHydrating(current$$1, workInProgress, renderExpirationTime);
      }
    
      if (isSuspenseInstanceFallback(suspenseInstance)) {
        // This boundary is in a permanent fallback state. In this case, we'll never
        // get an update and we'll never be able to hydrate the final content. Let's just try the
        // client side render instead.
        return retrySuspenseComponentWithoutHydrating(current$$1, workInProgress, renderExpirationTime);
      } // We use childExpirationTime to indicate that a child might depend on context, so if
      // any context has changed, we need to treat is as if the input might have changed.
    
    
      var hasContextChanged$$1 = current$$1.childExpirationTime >= renderExpirationTime;
    
      if (didReceiveUpdate || hasContextChanged$$1) {
        // This boundary has changed since the first render. This means that we are now unable to
        // hydrate it. We might still be able to hydrate it using an earlier expiration time, if
        // we are rendering at lower expiration than sync.
        if (renderExpirationTime < Sync) {
          if (suspenseState.retryTime <= renderExpirationTime) {
            // This render is even higher pri than we've seen before, let's try again
            // at even higher pri.
            var attemptHydrationAtExpirationTime = renderExpirationTime + 1;
            suspenseState.retryTime = attemptHydrationAtExpirationTime;
            scheduleWork(current$$1, attemptHydrationAtExpirationTime); // TODO: Early abort this render.
          } else {// We have already tried to ping at a higher priority than we're rendering with
              // so if we got here, we must have failed to hydrate at those levels. We must
              // now give up. Instead, we're going to delete the whole subtree and instead inject
              // a new real Suspense boundary to take its place, which may render content
              // or fallback. This might suspend for a while and if it does we might still have
              // an opportunity to hydrate before this pass commits.
            }
        } // If we have scheduled higher pri work above, this will probably just abort the render
        // since we now have higher priority work, but in case it doesn't, we need to prepare to
        // render something, if we time out. Even if that requires us to delete everything and
        // skip hydration.
        // Delay having to do this as long as the suspense timeout allows us.
    
    
        renderDidSuspendDelayIfPossible();
        return retrySuspenseComponentWithoutHydrating(current$$1, workInProgress, renderExpirationTime);
      } else if (isSuspenseInstancePending(suspenseInstance)) {
        // This component is still pending more data from the server, so we can't hydrate its
        // content. We treat it as if this component suspended itself. It might seem as if
        // we could just try to render it client-side instead. However, this will perform a
        // lot of unnecessary work and is unlikely to complete since it often will suspend
        // on missing data anyway. Additionally, the server might be able to render more
        // than we can on the client yet. In that case we'd end up with more fallback states
        // on the client than if we just leave it alone. If the server times out or errors
        // these should update this boundary to the permanent Fallback state instead.
        // Mark it as having captured (i.e. suspended).
        workInProgress.effectTag |= DidCapture; // Leave the child in place. I.e. the dehydrated fragment.
    
        workInProgress.child = current$$1.child; // Register a callback to retry this boundary once the server has sent the result.
    
        registerSuspenseInstanceRetry(suspenseInstance, retryDehydratedSuspenseBoundary.bind(null, current$$1));
        return null;
      } else {
        // This is the first attempt.
        reenterHydrationStateFromDehydratedSuspenseInstance(workInProgress, suspenseInstance);
        var nextProps = workInProgress.pendingProps;
        var nextChildren = nextProps.children;
        var child = mountChildFibers(workInProgress, null, nextChildren, renderExpirationTime);
        var node = child;
    
        while (node) {
          // Mark each child as hydrating. This is a fast path to know whether this
          // tree is part of a hydrating tree. This is used to determine if a child
          // node has fully mounted yet, and for scheduling event replaying.
          // Conceptually this is similar to Placement in that a new subtree is
          // inserted into the React tree here. It just happens to not need DOM
          // mutations because it already exists.
          node.effectTag |= Hydrating;
          node = node.sibling;
        }
    
        workInProgress.child = child;
        return workInProgress.child;
      }
    }
    
    function propagateSuspenseContextChange(workInProgress, firstChild, renderExpirationTime) {
      // Mark any Suspense boundaries with fallbacks as having work to do.
      // If they were previously forced into fallbacks, they may now be able
      // to unblock.
      var node = firstChild;
    
      while (node !== null) {
        if (node.tag === SuspenseComponent) {
          var state = node.memoizedState;
    
          if (state !== null) {
            if (node.expirationTime < renderExpirationTime) {
              node.expirationTime = renderExpirationTime;
            }
    
            var alternate = node.alternate;
    
            if (alternate !== null && alternate.expirationTime < renderExpirationTime) {
              alternate.expirationTime = renderExpirationTime;
            }
    
            scheduleWorkOnParentPath(node.return, renderExpirationTime);
          }
        } else if (node.child !== null) {
          node.child.return = node;
          node = node.child;
          continue;
        }
    
        if (node === workInProgress) {
          return;
        }
    
        while (node.sibling === null) {
          if (node.return === null || node.return === workInProgress) {
            return;
          }
    
          node = node.return;
        }
    
        node.sibling.return = node.return;
        node = node.sibling;
      }
    }
    
    function findLastContentRow(firstChild) {
      // This is going to find the last row among these children that is already
      // showing content on the screen, as opposed to being in fallback state or
      // new. If a row has multiple Suspense boundaries, any of them being in the
      // fallback state, counts as the whole row being in a fallback state.
      // Note that the "rows" will be workInProgress, but any nested children
      // will still be current since we haven't rendered them yet. The mounted
      // order may not be the same as the new order. We use the new order.
      var row = firstChild;
      var lastContentRow = null;
    
      while (row !== null) {
        var currentRow = row.alternate; // New rows can't be content rows.
    
        if (currentRow !== null && findFirstSuspended(currentRow) === null) {
          lastContentRow = row;
        }
    
        row = row.sibling;
      }
    
      return lastContentRow;
    }
    
    function validateRevealOrder(revealOrder) {
      {
        if (revealOrder !== undefined && revealOrder !== 'forwards' && revealOrder !== 'backwards' && revealOrder !== 'together' && !didWarnAboutRevealOrder[revealOrder]) {
          didWarnAboutRevealOrder[revealOrder] = true;
    
          if (typeof revealOrder === 'string') {
            switch (revealOrder.toLowerCase()) {
              case 'together':
              case 'forwards':
              case 'backwards':
                {
                  warning$1(false, '"%s" is not a valid value for revealOrder on <SuspenseList />. ' + 'Use lowercase "%s" instead.', revealOrder, revealOrder.toLowerCase());
                  break;
                }
    
              case 'forward':
              case 'backward':
                {
                  warning$1(false, '"%s" is not a valid value for revealOrder on <SuspenseList />. ' + 'React uses the -s suffix in the spelling. Use "%ss" instead.', revealOrder, revealOrder.toLowerCase());
                  break;
                }
    
              default:
                warning$1(false, '"%s" is not a supported revealOrder on <SuspenseList />. ' + 'Did you mean "together", "forwards" or "backwards"?', revealOrder);
                break;
            }
          } else {
            warning$1(false, '%s is not a supported value for revealOrder on <SuspenseList />. ' + 'Did you mean "together", "forwards" or "backwards"?', revealOrder);
          }
        }
      }
    }
    
    function validateTailOptions(tailMode, revealOrder) {
      {
        if (tailMode !== undefined && !didWarnAboutTailOptions[tailMode]) {
          if (tailMode !== 'collapsed' && tailMode !== 'hidden') {
            didWarnAboutTailOptions[tailMode] = true;
            warning$1(false, '"%s" is not a supported value for tail on <SuspenseList />. ' + 'Did you mean "collapsed" or "hidden"?', tailMode);
          } else if (revealOrder !== 'forwards' && revealOrder !== 'backwards') {
            didWarnAboutTailOptions[tailMode] = true;
            warning$1(false, '<SuspenseList tail="%s" /> is only valid if revealOrder is ' + '"forwards" or "backwards". ' + 'Did you mean to specify revealOrder="forwards"?', tailMode);
          }
        }
      }
    }
    
    function validateSuspenseListNestedChild(childSlot, index) {
      {
        var isArray = Array.isArray(childSlot);
        var isIterable = !isArray && typeof getIteratorFn(childSlot) === 'function';
    
        if (isArray || isIterable) {
          var type = isArray ? 'array' : 'iterable';
          warning$1(false, 'A nested %s was passed to row #%s in <SuspenseList />. Wrap it in ' + 'an additional SuspenseList to configure its revealOrder: ' + '<SuspenseList revealOrder=...> ... ' + '<SuspenseList revealOrder=...>{%s}</SuspenseList> ... ' + '</SuspenseList>', type, index, type);
          return false;
        }
      }
    
      return true;
    }
    
    function validateSuspenseListChildren(children, revealOrder) {
      {
        if ((revealOrder === 'forwards' || revealOrder === 'backwards') && children !== undefined && children !== null && children !== false) {
          if (Array.isArray(children)) {
            for (var i = 0; i < children.length; i++) {
              if (!validateSuspenseListNestedChild(children[i], i)) {
                return;
              }
            }
          } else {
            var iteratorFn = getIteratorFn(children);
    
            if (typeof iteratorFn === 'function') {
              var childrenIterator = iteratorFn.call(children);
    
              if (childrenIterator) {
                var step = childrenIterator.next();
                var _i = 0;
    
                for (; !step.done; step = childrenIterator.next()) {
                  if (!validateSuspenseListNestedChild(step.value, _i)) {
                    return;
                  }
    
                  _i++;
                }
              }
            } else {
              warning$1(false, 'A single row was passed to a <SuspenseList revealOrder="%s" />. ' + 'This is not useful since it needs multiple rows. ' + 'Did you mean to pass multiple children or an array?', revealOrder);
            }
          }
        }
      }
    }
    
    function initSuspenseListRenderState(workInProgress, isBackwards, tail, lastContentRow, tailMode) {
      var renderState = workInProgress.memoizedState;
    
      if (renderState === null) {
        workInProgress.memoizedState = {
          isBackwards: isBackwards,
          rendering: null,
          last: lastContentRow,
          tail: tail,
          tailExpiration: 0,
          tailMode: tailMode
        };
      } else {
        // We can reuse the existing object from previous renders.
        renderState.isBackwards = isBackwards;
        renderState.rendering = null;
        renderState.last = lastContentRow;
        renderState.tail = tail;
        renderState.tailExpiration = 0;
        renderState.tailMode = tailMode;
      }
    } // This can end up rendering this component multiple passes.
    // The first pass splits the children fibers into two sets. A head and tail.
    // We first render the head. If anything is in fallback state, we do another
    // pass through beginWork to rerender all children (including the tail) with
    // the force suspend context. If the first render didn't have anything in
    // in fallback state. Then we render each row in the tail one-by-one.
    // That happens in the completeWork phase without going back to beginWork.
    
    
    function updateSuspenseListComponent(current$$1, workInProgress, renderExpirationTime) {
      var nextProps = workInProgress.pendingProps;
      var revealOrder = nextProps.revealOrder;
      var tailMode = nextProps.tail;
      var newChildren = nextProps.children;
      validateRevealOrder(revealOrder);
      validateTailOptions(tailMode, revealOrder);
      validateSuspenseListChildren(newChildren, revealOrder);
      reconcileChildren(current$$1, workInProgress, newChildren, renderExpirationTime);
      var suspenseContext = suspenseStackCursor.current;
      var shouldForceFallback = hasSuspenseContext(suspenseContext, ForceSuspenseFallback);
    
      if (shouldForceFallback) {
        suspenseContext = setShallowSuspenseContext(suspenseContext, ForceSuspenseFallback);
        workInProgress.effectTag |= DidCapture;
      } else {
        var didSuspendBefore = current$$1 !== null && (current$$1.effectTag & DidCapture) !== NoEffect;
    
        if (didSuspendBefore) {
          // If we previously forced a fallback, we need to schedule work
          // on any nested boundaries to let them know to try to render
          // again. This is the same as context updating.
          propagateSuspenseContextChange(workInProgress, workInProgress.child, renderExpirationTime);
        }
    
        suspenseContext = setDefaultShallowSuspenseContext(suspenseContext);
      }
    
      pushSuspenseContext(workInProgress, suspenseContext);
    
      if ((workInProgress.mode & BatchedMode) === NoMode) {
        // Outside of batched mode, SuspenseList doesn't work so we just
        // use make it a noop by treating it as the default revealOrder.
        workInProgress.memoizedState = null;
      } else {
        switch (revealOrder) {
          case 'forwards':
            {
              var lastContentRow = findLastContentRow(workInProgress.child);
              var tail;
    
              if (lastContentRow === null) {
                // The whole list is part of the tail.
                // TODO: We could fast path by just rendering the tail now.
                tail = workInProgress.child;
                workInProgress.child = null;
              } else {
                // Disconnect the tail rows after the content row.
                // We're going to render them separately later.
                tail = lastContentRow.sibling;
                lastContentRow.sibling = null;
              }
    
              initSuspenseListRenderState(workInProgress, false, // isBackwards
              tail, lastContentRow, tailMode);
              break;
            }
    
          case 'backwards':
            {
              // We're going to find the first row that has existing content.
              // At the same time we're going to reverse the list of everything
              // we pass in the meantime. That's going to be our tail in reverse
              // order.
              var _tail = null;
              var row = workInProgress.child;
              workInProgress.child = null;
    
              while (row !== null) {
                var currentRow = row.alternate; // New rows can't be content rows.
    
                if (currentRow !== null && findFirstSuspended(currentRow) === null) {
                  // This is the beginning of the main content.
                  workInProgress.child = row;
                  break;
                }
    
                var nextRow = row.sibling;
                row.sibling = _tail;
                _tail = row;
                row = nextRow;
              } // TODO: If workInProgress.child is null, we can continue on the tail immediately.
    
    
              initSuspenseListRenderState(workInProgress, true, // isBackwards
              _tail, null, // last
              tailMode);
              break;
            }
    
          case 'together':
            {
              initSuspenseListRenderState(workInProgress, false, // isBackwards
              null, // tail
              null, // last
              undefined);
              break;
            }
    
          default:
            {
              // The default reveal order is the same as not having
              // a boundary.
              workInProgress.memoizedState = null;
            }
        }
      }
    
      return workInProgress.child;
    }
    
    function updatePortalComponent(current$$1, workInProgress, renderExpirationTime) {
      pushHostContainer(workInProgress, workInProgress.stateNode.containerInfo);
      var nextChildren = workInProgress.pendingProps;
    
      if (current$$1 === null) {
        // Portals are special because we don't append the children during mount
        // but at commit. Therefore we need to track insertions which the normal
        // flow doesn't do during mount. This doesn't happen at the root because
        // the root always starts with a "current" with a null child.
        // TODO: Consider unifying this with how the root works.
        workInProgress.child = reconcileChildFibers(workInProgress, null, nextChildren, renderExpirationTime);
      } else {
        reconcileChildren(current$$1, workInProgress, nextChildren, renderExpirationTime);
      }
    
      return workInProgress.child;
    }
    
    function updateContextProvider(current$$1, workInProgress, renderExpirationTime) {
      var providerType = workInProgress.type;
      var context = providerType._context;
      var newProps = workInProgress.pendingProps;
      var oldProps = workInProgress.memoizedProps;
      var newValue = newProps.value;
    
      {
        var providerPropTypes = workInProgress.type.propTypes;
    
        if (providerPropTypes) {
          checkPropTypes(providerPropTypes, newProps, 'prop', 'Context.Provider', getCurrentFiberStackInDev);
        }
      }
    
      pushProvider(workInProgress, newValue);
    
      if (oldProps !== null) {
        var oldValue = oldProps.value;
        var changedBits = calculateChangedBits(context, newValue, oldValue);
    
        if (changedBits === 0) {
          // No change. Bailout early if children are the same.
          if (oldProps.children === newProps.children && !hasContextChanged()) {
            return bailoutOnAlreadyFinishedWork(current$$1, workInProgress, renderExpirationTime);
          }
        } else {
          // The context value changed. Search for matching consumers and schedule
          // them to update.
          propagateContextChange(workInProgress, context, changedBits, renderExpirationTime);
        }
      }
    
      var newChildren = newProps.children;
      reconcileChildren(current$$1, workInProgress, newChildren, renderExpirationTime);
      return workInProgress.child;
    }
    
    var hasWarnedAboutUsingContextAsConsumer = false;
    
    function updateContextConsumer(current$$1, workInProgress, renderExpirationTime) {
      var context = workInProgress.type; // The logic below for Context differs depending on PROD or DEV mode. In
      // DEV mode, we create a separate object for Context.Consumer that acts
      // like a proxy to Context. This proxy object adds unnecessary code in PROD
      // so we use the old behaviour (Context.Consumer references Context) to
      // reduce size and overhead. The separate object references context via
      // a property called "_context", which also gives us the ability to check
      // in DEV mode if this property exists or not and warn if it does not.
    
      {
        if (context._context === undefined) {
          // This may be because it's a Context (rather than a Consumer).
          // Or it may be because it's older React where they're the same thing.
          // We only want to warn if we're sure it's a new React.
          if (context !== context.Consumer) {
            if (!hasWarnedAboutUsingContextAsConsumer) {
              hasWarnedAboutUsingContextAsConsumer = true;
              warning$1(false, 'Rendering <Context> directly is not supported and will be removed in ' + 'a future major release. Did you mean to render <Context.Consumer> instead?');
            }
          }
        } else {
          context = context._context;
        }
      }
    
      var newProps = workInProgress.pendingProps;
      var render = newProps.children;
    
      {
        !(typeof render === 'function') ? warningWithoutStack$1(false, 'A context consumer was rendered with multiple children, or a child ' + "that isn't a function. A context consumer expects a single child " + 'that is a function. If you did pass a function, make sure there ' + 'is no trailing or leading whitespace around it.') : void 0;
      }
    
      prepareToReadContext(workInProgress, renderExpirationTime);
      var newValue = readContext(context, newProps.unstable_observedBits);
      var newChildren;
    
      {
        ReactCurrentOwner$3.current = workInProgress;
        setCurrentPhase('render');
        newChildren = render(newValue);
        setCurrentPhase(null);
      } // React DevTools reads this flag.
    
    
      workInProgress.effectTag |= PerformedWork;
      reconcileChildren(current$$1, workInProgress, newChildren, renderExpirationTime);
      return workInProgress.child;
    }
    
    function updateFundamentalComponent$1(current$$1, workInProgress, renderExpirationTime) {
      var fundamentalImpl = workInProgress.type.impl;
    
      if (fundamentalImpl.reconcileChildren === false) {
        return null;
      }
    
      var nextProps = workInProgress.pendingProps;
      var nextChildren = nextProps.children;
      reconcileChildren(current$$1, workInProgress, nextChildren, renderExpirationTime);
      return workInProgress.child;
    }
    
    function updateScopeComponent(current$$1, workInProgress, renderExpirationTime) {
      var nextProps = workInProgress.pendingProps;
      var nextChildren = nextProps.children;
      reconcileChildren(current$$1, workInProgress, nextChildren, renderExpirationTime);
      return workInProgress.child;
    }
    
    function markWorkInProgressReceivedUpdate() {
      didReceiveUpdate = true;
    }
    
    function bailoutOnAlreadyFinishedWork(current$$1, workInProgress, renderExpirationTime) {
      cancelWorkTimer(workInProgress);
    
      if (current$$1 !== null) {
        // Reuse previous dependencies
        workInProgress.dependencies = current$$1.dependencies;
      }
    
      if (enableProfilerTimer) {
        // Don't update "base" render times for bailouts.
        stopProfilerTimerIfRunning(workInProgress);
      }
    
      var updateExpirationTime = workInProgress.expirationTime;
    
      if (updateExpirationTime !== NoWork) {
        markUnprocessedUpdateTime(updateExpirationTime);
      } // Check if the children have any pending work.
    
    
      var childExpirationTime = workInProgress.childExpirationTime;
    
      if (childExpirationTime < renderExpirationTime) {
        // The children don't have any work either. We can skip them.
        // TODO: Once we add back resuming, we should check if the children are
        // a work-in-progress set. If so, we need to transfer their effects.
        return null;
      } else {
        // This fiber doesn't have work, but its subtree does. Clone the child
        // fibers and continue.
        cloneChildFibers(current$$1, workInProgress);
        return workInProgress.child;
      }
    }
    
    function remountFiber(current$$1, oldWorkInProgress, newWorkInProgress) {
      {
        var returnFiber = oldWorkInProgress.return;
    
        if (returnFiber === null) {
          throw new Error('Cannot swap the root fiber.');
        } // Disconnect from the old current.
        // It will get deleted.
    
    
        current$$1.alternate = null;
        oldWorkInProgress.alternate = null; // Connect to the new tree.
    
        newWorkInProgress.index = oldWorkInProgress.index;
        newWorkInProgress.sibling = oldWorkInProgress.sibling;
        newWorkInProgress.return = oldWorkInProgress.return;
        newWorkInProgress.ref = oldWorkInProgress.ref; // Replace the child/sibling pointers above it.
    
        if (oldWorkInProgress === returnFiber.child) {
          returnFiber.child = newWorkInProgress;
        } else {
          var prevSibling = returnFiber.child;
    
          if (prevSibling === null) {
            throw new Error('Expected parent to have a child.');
          }
    
          while (prevSibling.sibling !== oldWorkInProgress) {
            prevSibling = prevSibling.sibling;
    
            if (prevSibling === null) {
              throw new Error('Expected to find the previous sibling.');
            }
          }
    
          prevSibling.sibling = newWorkInProgress;
        } // Delete the old fiber and place the new one.
        // Since the old fiber is disconnected, we have to schedule it manually.
    
    
        var last = returnFiber.lastEffect;
    
        if (last !== null) {
          last.nextEffect = current$$1;
          returnFiber.lastEffect = current$$1;
        } else {
          returnFiber.firstEffect = returnFiber.lastEffect = current$$1;
        }
    
        current$$1.nextEffect = null;
        current$$1.effectTag = Deletion;
        newWorkInProgress.effectTag |= Placement; // Restart work from the new fiber.
    
        return newWorkInProgress;
      }
    }
    
    function beginWork$1(current$$1, workInProgress, renderExpirationTime) {
      var updateExpirationTime = workInProgress.expirationTime;
    
      {
        if (workInProgress._debugNeedsRemount && current$$1 !== null) {
          // This will restart the begin phase with a new fiber.
          return remountFiber(current$$1, workInProgress, createFiberFromTypeAndProps(workInProgress.type, workInProgress.key, workInProgress.pendingProps, workInProgress._debugOwner || null, workInProgress.mode, workInProgress.expirationTime));
        }
      }
    
      if (current$$1 !== null) {
        var oldProps = current$$1.memoizedProps;
        var newProps = workInProgress.pendingProps;
    
        if (oldProps !== newProps || hasContextChanged() || ( // Force a re-render if the implementation changed due to hot reload:
        workInProgress.type !== current$$1.type)) {
          // If props or context changed, mark the fiber as having performed work.
          // This may be unset if the props are determined to be equal later (memo).
          didReceiveUpdate = true;
        } else if (updateExpirationTime < renderExpirationTime) {
          didReceiveUpdate = false; // This fiber does not have any pending work. Bailout without entering
          // the begin phase. There's still some bookkeeping we that needs to be done
          // in this optimized path, mostly pushing stuff onto the stack.
    
          switch (workInProgress.tag) {
            case HostRoot:
              pushHostRootContext(workInProgress);
              resetHydrationState();
              break;
    
            case HostComponent:
              pushHostContext(workInProgress);
    
              if (workInProgress.mode & ConcurrentMode && renderExpirationTime !== Never && shouldDeprioritizeSubtree(workInProgress.type, newProps)) {
                if (enableSchedulerTracing) {
                  markSpawnedWork(Never);
                } // Schedule this fiber to re-render at offscreen priority. Then bailout.
    
    
                workInProgress.expirationTime = workInProgress.childExpirationTime = Never;
                return null;
              }
    
              break;
    
            case ClassComponent:
              {
                var Component = workInProgress.type;
    
                if (isContextProvider(Component)) {
                  pushContextProvider(workInProgress);
                }
    
                break;
              }
    
            case HostPortal:
              pushHostContainer(workInProgress, workInProgress.stateNode.containerInfo);
              break;
    
            case ContextProvider:
              {
                var newValue = workInProgress.memoizedProps.value;
                pushProvider(workInProgress, newValue);
                break;
              }
    
            case Profiler:
              if (enableProfilerTimer) {
                workInProgress.effectTag |= Update;
              }
    
              break;
    
            case SuspenseComponent:
              {
                var state = workInProgress.memoizedState;
    
                if (state !== null) {
                  if (enableSuspenseServerRenderer) {
                    if (state.dehydrated !== null) {
                      pushSuspenseContext(workInProgress, setDefaultShallowSuspenseContext(suspenseStackCursor.current)); // We know that this component will suspend again because if it has
                      // been unsuspended it has committed as a resolved Suspense component.
                      // If it needs to be retried, it should have work scheduled on it.
    
                      workInProgress.effectTag |= DidCapture;
                      break;
                    }
                  } // If this boundary is currently timed out, we need to decide
                  // whether to retry the primary children, or to skip over it and
                  // go straight to the fallback. Check the priority of the primary
                  // child fragment.
    
    
                  var primaryChildFragment = workInProgress.child;
                  var primaryChildExpirationTime = primaryChildFragment.childExpirationTime;
    
                  if (primaryChildExpirationTime !== NoWork && primaryChildExpirationTime >= renderExpirationTime) {
                    // The primary children have pending work. Use the normal path
                    // to attempt to render the primary children again.
                    return updateSuspenseComponent(current$$1, workInProgress, renderExpirationTime);
                  } else {
                    pushSuspenseContext(workInProgress, setDefaultShallowSuspenseContext(suspenseStackCursor.current)); // The primary children do not have pending work with sufficient
                    // priority. Bailout.
    
                    var child = bailoutOnAlreadyFinishedWork(current$$1, workInProgress, renderExpirationTime);
    
                    if (child !== null) {
                      // The fallback children have pending work. Skip over the
                      // primary children and work on the fallback.
                      return child.sibling;
                    } else {
                      return null;
                    }
                  }
                } else {
                  pushSuspenseContext(workInProgress, setDefaultShallowSuspenseContext(suspenseStackCursor.current));
                }
    
                break;
              }
    
            case SuspenseListComponent:
              {
                var didSuspendBefore = (current$$1.effectTag & DidCapture) !== NoEffect;
                var hasChildWork = workInProgress.childExpirationTime >= renderExpirationTime;
    
                if (didSuspendBefore) {
                  if (hasChildWork) {
                    // If something was in fallback state last time, and we have all the
                    // same children then we're still in progressive loading state.
                    // Something might get unblocked by state updates or retries in the
                    // tree which will affect the tail. So we need to use the normal
                    // path to compute the correct tail.
                    return updateSuspenseListComponent(current$$1, workInProgress, renderExpirationTime);
                  } // If none of the children had any work, that means that none of
                  // them got retried so they'll still be blocked in the same way
                  // as before. We can fast bail out.
    
    
                  workInProgress.effectTag |= DidCapture;
                } // If nothing suspended before and we're rendering the same children,
                // then the tail doesn't matter. Anything new that suspends will work
                // in the "together" mode, so we can continue from the state we had.
    
    
                var renderState = workInProgress.memoizedState;
    
                if (renderState !== null) {
                  // Reset to the "together" mode in case we've started a different
                  // update in the past but didn't complete it.
                  renderState.rendering = null;
                  renderState.tail = null;
                }
    
                pushSuspenseContext(workInProgress, suspenseStackCursor.current);
    
                if (hasChildWork) {
                  break;
                } else {
                  // If none of the children had any work, that means that none of
                  // them got retried so they'll still be blocked in the same way
                  // as before. We can fast bail out.
                  return null;
                }
              }
          }
    
          return bailoutOnAlreadyFinishedWork(current$$1, workInProgress, renderExpirationTime);
        } else {
          // An update was scheduled on this fiber, but there are no new props
          // nor legacy context. Set this to false. If an update queue or context
          // consumer produces a changed value, it will set this to true. Otherwise,
          // the component will assume the children have not changed and bail out.
          didReceiveUpdate = false;
        }
      } else {
        didReceiveUpdate = false;
      } // Before entering the begin phase, clear the expiration time.
    
    
      workInProgress.expirationTime = NoWork;
    
      switch (workInProgress.tag) {
        case IndeterminateComponent:
          {
            return mountIndeterminateComponent(current$$1, workInProgress, workInProgress.type, renderExpirationTime);
          }
    
        case LazyComponent:
          {
            var elementType = workInProgress.elementType;
            return mountLazyComponent(current$$1, workInProgress, elementType, updateExpirationTime, renderExpirationTime);
          }
    
        case FunctionComponent:
          {
            var _Component = workInProgress.type;
            var unresolvedProps = workInProgress.pendingProps;
            var resolvedProps = workInProgress.elementType === _Component ? unresolvedProps : resolveDefaultProps(_Component, unresolvedProps);
            return updateFunctionComponent(current$$1, workInProgress, _Component, resolvedProps, renderExpirationTime);
          }
    
        case ClassComponent:
          {
            var _Component2 = workInProgress.type;
            var _unresolvedProps = workInProgress.pendingProps;
    
            var _resolvedProps = workInProgress.elementType === _Component2 ? _unresolvedProps : resolveDefaultProps(_Component2, _unresolvedProps);
    
            return updateClassComponent(current$$1, workInProgress, _Component2, _resolvedProps, renderExpirationTime);
          }
    
        case HostRoot:
          return updateHostRoot(current$$1, workInProgress, renderExpirationTime);
    
        case HostComponent:
          return updateHostComponent(current$$1, workInProgress, renderExpirationTime);
    
        case HostText:
          return updateHostText(current$$1, workInProgress);
    
        case SuspenseComponent:
          return updateSuspenseComponent(current$$1, workInProgress, renderExpirationTime);
    
        case HostPortal:
          return updatePortalComponent(current$$1, workInProgress, renderExpirationTime);
    
        case ForwardRef:
          {
            var type = workInProgress.type;
            var _unresolvedProps2 = workInProgress.pendingProps;
    
            var _resolvedProps2 = workInProgress.elementType === type ? _unresolvedProps2 : resolveDefaultProps(type, _unresolvedProps2);
    
            return updateForwardRef(current$$1, workInProgress, type, _resolvedProps2, renderExpirationTime);
          }
    
        case Fragment:
          return updateFragment(current$$1, workInProgress, renderExpirationTime);
    
        case Mode:
          return updateMode(current$$1, workInProgress, renderExpirationTime);
    
        case Profiler:
          return updateProfiler(current$$1, workInProgress, renderExpirationTime);
    
        case ContextProvider:
          return updateContextProvider(current$$1, workInProgress, renderExpirationTime);
    
        case ContextConsumer:
          return updateContextConsumer(current$$1, workInProgress, renderExpirationTime);
    
        case MemoComponent:
          {
            var _type2 = workInProgress.type;
            var _unresolvedProps3 = workInProgress.pendingProps; // Resolve outer props first, then resolve inner props.
    
            var _resolvedProps3 = resolveDefaultProps(_type2, _unresolvedProps3);
    
            {
              if (workInProgress.type !== workInProgress.elementType) {
                var outerPropTypes = _type2.propTypes;
    
                if (outerPropTypes) {
                  checkPropTypes(outerPropTypes, _resolvedProps3, // Resolved for outer only
                  'prop', getComponentName(_type2), getCurrentFiberStackInDev);
                }
              }
            }
    
            _resolvedProps3 = resolveDefaultProps(_type2.type, _resolvedProps3);
            return updateMemoComponent(current$$1, workInProgress, _type2, _resolvedProps3, updateExpirationTime, renderExpirationTime);
          }
    
        case SimpleMemoComponent:
          {
            return updateSimpleMemoComponent(current$$1, workInProgress, workInProgress.type, workInProgress.pendingProps, updateExpirationTime, renderExpirationTime);
          }
    
        case IncompleteClassComponent:
          {
            var _Component3 = workInProgress.type;
            var _unresolvedProps4 = workInProgress.pendingProps;
    
            var _resolvedProps4 = workInProgress.elementType === _Component3 ? _unresolvedProps4 : resolveDefaultProps(_Component3, _unresolvedProps4);
    
            return mountIncompleteClassComponent(current$$1, workInProgress, _Component3, _resolvedProps4, renderExpirationTime);
          }
    
        case SuspenseListComponent:
          {
            return updateSuspenseListComponent(current$$1, workInProgress, renderExpirationTime);
          }
    
        case FundamentalComponent:
          {
            if (enableFundamentalAPI) {
              return updateFundamentalComponent$1(current$$1, workInProgress, renderExpirationTime);
            }
    
            break;
          }
    
        case ScopeComponent:
          {
            if (enableScopeAPI) {
              return updateScopeComponent(current$$1, workInProgress, renderExpirationTime);
            }
    
            break;
          }
      }
    
      (function () {
        {
          {
            throw ReactError(Error("Unknown unit of work tag (" + workInProgress.tag + "). This error is likely caused by a bug in React. Please file an issue."));
          }
        }
      })();
    }
    
    function createFundamentalStateInstance(currentFiber, props, impl, state) {
      return {
        currentFiber: currentFiber,
        impl: impl,
        instance: null,
        prevProps: null,
        props: props,
        state: state
      };
    }
    
    function isFiberSuspenseAndTimedOut(fiber) {
      return fiber.tag === SuspenseComponent && fiber.memoizedState !== null;
    }
    
    function getSuspenseFallbackChild(fiber) {
      return fiber.child.sibling.child;
    }
    
    function collectScopedNodes(node, fn, scopedNodes) {
      if (enableScopeAPI) {
        if (node.tag === HostComponent) {
          var _type = node.type,
              memoizedProps = node.memoizedProps;
    
          if (fn(_type, memoizedProps) === true) {
            scopedNodes.push(getPublicInstance(node.stateNode));
          }
        }
    
        var child = node.child;
    
        if (isFiberSuspenseAndTimedOut(node)) {
          child = getSuspenseFallbackChild(node);
        }
    
        if (child !== null) {
          collectScopedNodesFromChildren(child, fn, scopedNodes);
        }
      }
    }
    
    function collectScopedNodesFromChildren(startingChild, fn, scopedNodes) {
      var child = startingChild;
    
      while (child !== null) {
        collectScopedNodes(child, fn, scopedNodes);
        child = child.sibling;
      }
    }
    
    function collectNearestScopeMethods(node, scope, childrenScopes) {
      if (isValidScopeNode(node, scope)) {
        childrenScopes.push(node.stateNode.methods);
      } else {
        var child = node.child;
    
        if (isFiberSuspenseAndTimedOut(node)) {
          child = getSuspenseFallbackChild(node);
        }
    
        if (child !== null) {
          collectNearestChildScopeMethods(child, scope, childrenScopes);
        }
      }
    }
    
    function collectNearestChildScopeMethods(startingChild, scope, childrenScopes) {
      var child = startingChild;
    
      while (child !== null) {
        collectNearestScopeMethods(child, scope, childrenScopes);
        child = child.sibling;
      }
    }
    
    function isValidScopeNode(node, scope) {
      return node.tag === ScopeComponent && node.type === scope;
    }
    
    function createScopeMethods(scope, instance) {
      var fn = scope.fn;
      return {
        getChildren: function () {
          var currentFiber = instance.fiber;
          var child = currentFiber.child;
          var childrenScopes = [];
    
          if (child !== null) {
            collectNearestChildScopeMethods(child, scope, childrenScopes);
          }
    
          return childrenScopes.length === 0 ? null : childrenScopes;
        },
        getChildrenFromRoot: function () {
          var currentFiber = instance.fiber;
          var node = currentFiber;
    
          while (node !== null) {
            var parent = node.return;
    
            if (parent === null) {
              break;
            }
    
            node = parent;
    
            if (node.tag === ScopeComponent && node.type === scope) {
              break;
            }
          }
    
          var childrenScopes = [];
          collectNearestChildScopeMethods(node.child, scope, childrenScopes);
          return childrenScopes.length === 0 ? null : childrenScopes;
        },
        getParent: function () {
          var node = instance.fiber.return;
    
          while (node !== null) {
            if (node.tag === ScopeComponent && node.type === scope) {
              return node.stateNode.methods;
            }
    
            node = node.return;
          }
    
          return null;
        },
        getProps: function () {
          var currentFiber = instance.fiber;
          return currentFiber.memoizedProps;
        },
        getScopedNodes: function () {
          var currentFiber = instance.fiber;
          var child = currentFiber.child;
          var scopedNodes = [];
    
          if (child !== null) {
            collectScopedNodesFromChildren(child, fn, scopedNodes);
          }
    
          return scopedNodes.length === 0 ? null : scopedNodes;
        }
      };
    }
    
    function markUpdate(workInProgress) {
      // Tag the fiber with an update effect. This turns a Placement into
      // a PlacementAndUpdate.
      workInProgress.effectTag |= Update;
    }
    
    function markRef$1(workInProgress) {
      workInProgress.effectTag |= Ref;
    }
    
    var appendAllChildren;
    var updateHostContainer;
    var updateHostComponent$1;
    var updateHostText$1;
    
    if (supportsMutation) {
      // Mutation mode
      appendAllChildren = function (parent, workInProgress, needsVisibilityToggle, isHidden) {
        // We only have the top Fiber that was created but we need recurse down its
        // children to find all the terminal nodes.
        var node = workInProgress.child;
    
        while (node !== null) {
          if (node.tag === HostComponent || node.tag === HostText) {
            appendInitialChild(parent, node.stateNode);
          } else if (enableFundamentalAPI && node.tag === FundamentalComponent) {
            appendInitialChild(parent, node.stateNode.instance);
          } else if (node.tag === HostPortal) {// If we have a portal child, then we don't want to traverse
            // down its children. Instead, we'll get insertions from each child in
            // the portal directly.
          } else if (node.child !== null) {
            node.child.return = node;
            node = node.child;
            continue;
          }
    
          if (node === workInProgress) {
            return;
          }
    
          while (node.sibling === null) {
            if (node.return === null || node.return === workInProgress) {
              return;
            }
    
            node = node.return;
          }
    
          node.sibling.return = node.return;
          node = node.sibling;
        }
      };
    
      updateHostContainer = function (workInProgress) {// Noop
      };
    
      updateHostComponent$1 = function (current, workInProgress, type, newProps, rootContainerInstance) {
        // If we have an alternate, that means this is an update and we need to
        // schedule a side-effect to do the updates.
        var oldProps = current.memoizedProps;
    
        if (oldProps === newProps) {
          // In mutation mode, this is sufficient for a bailout because
          // we won't touch this node even if children changed.
          return;
        } // If we get updated because one of our children updated, we don't
        // have newProps so we'll have to reuse them.
        // TODO: Split the update API as separate for the props vs. children.
        // Even better would be if children weren't special cased at all tho.
    
    
        var instance = workInProgress.stateNode;
        var currentHostContext = getHostContext(); // TODO: Experiencing an error where oldProps is null. Suggests a host
        // component is hitting the resume path. Figure out why. Possibly
        // related to `hidden`.
    
        var updatePayload = prepareUpdate(instance, type, oldProps, newProps, rootContainerInstance, currentHostContext); // TODO: Type this specific to this type of component.
    
        workInProgress.updateQueue = updatePayload; // If the update payload indicates that there is a change or if there
        // is a new ref we mark this as an update. All the work is done in commitWork.
    
        if (updatePayload) {
          markUpdate(workInProgress);
        }
      };
    
      updateHostText$1 = function (current, workInProgress, oldText, newText) {
        // If the text differs, mark it as an update. All the work in done in commitWork.
        if (oldText !== newText) {
          markUpdate(workInProgress);
        }
      };
    } else if (supportsPersistence) {
      // Persistent host tree mode
      appendAllChildren = function (parent, workInProgress, needsVisibilityToggle, isHidden) {
        // We only have the top Fiber that was created but we need recurse down its
        // children to find all the terminal nodes.
        var node = workInProgress.child;
    
        while (node !== null) {
          // eslint-disable-next-line no-labels
          branches: if (node.tag === HostComponent) {
            var instance = node.stateNode;
    
            if (needsVisibilityToggle && isHidden) {
              // This child is inside a timed out tree. Hide it.
              var props = node.memoizedProps;
              var type = node.type;
              instance = cloneHiddenInstance(instance, type, props, node);
            }
    
            appendInitialChild(parent, instance);
          } else if (node.tag === HostText) {
            var _instance = node.stateNode;
    
            if (needsVisibilityToggle && isHidden) {
              // This child is inside a timed out tree. Hide it.
              var text = node.memoizedProps;
              _instance = cloneHiddenTextInstance(_instance, text, node);
            }
    
            appendInitialChild(parent, _instance);
          } else if (enableFundamentalAPI && node.tag === FundamentalComponent) {
            var _instance2 = node.stateNode.instance;
    
            if (needsVisibilityToggle && isHidden) {
              // This child is inside a timed out tree. Hide it.
              var _props = node.memoizedProps;
              var _type = node.type;
              _instance2 = cloneHiddenInstance(_instance2, _type, _props, node);
            }
    
            appendInitialChild(parent, _instance2);
          } else if (node.tag === HostPortal) {// If we have a portal child, then we don't want to traverse
            // down its children. Instead, we'll get insertions from each child in
            // the portal directly.
          } else if (node.tag === SuspenseComponent) {
            if ((node.effectTag & Update) !== NoEffect) {
              // Need to toggle the visibility of the primary children.
              var newIsHidden = node.memoizedState !== null;
    
              if (newIsHidden) {
                var primaryChildParent = node.child;
    
                if (primaryChildParent !== null) {
                  if (primaryChildParent.child !== null) {
                    primaryChildParent.child.return = primaryChildParent;
                    appendAllChildren(parent, primaryChildParent, true, newIsHidden);
                  }
    
                  var fallbackChildParent = primaryChildParent.sibling;
    
                  if (fallbackChildParent !== null) {
                    fallbackChildParent.return = node;
                    node = fallbackChildParent;
                    continue;
                  }
                }
              }
            }
    
            if (node.child !== null) {
              // Continue traversing like normal
              node.child.return = node;
              node = node.child;
              continue;
            }
          } else if (node.child !== null) {
            node.child.return = node;
            node = node.child;
            continue;
          } // $FlowFixMe This is correct but Flow is confused by the labeled break.
    
    
          node = node;
    
          if (node === workInProgress) {
            return;
          }
    
          while (node.sibling === null) {
            if (node.return === null || node.return === workInProgress) {
              return;
            }
    
            node = node.return;
          }
    
          node.sibling.return = node.return;
          node = node.sibling;
        }
      }; // An unfortunate fork of appendAllChildren because we have two different parent types.
    
    
      var appendAllChildrenToContainer = function (containerChildSet, workInProgress, needsVisibilityToggle, isHidden) {
        // We only have the top Fiber that was created but we need recurse down its
        // children to find all the terminal nodes.
        var node = workInProgress.child;
    
        while (node !== null) {
          // eslint-disable-next-line no-labels
          branches: if (node.tag === HostComponent) {
            var instance = node.stateNode;
    
            if (needsVisibilityToggle && isHidden) {
              // This child is inside a timed out tree. Hide it.
              var props = node.memoizedProps;
              var type = node.type;
              instance = cloneHiddenInstance(instance, type, props, node);
            }
    
            appendChildToContainerChildSet(containerChildSet, instance);
          } else if (node.tag === HostText) {
            var _instance3 = node.stateNode;
    
            if (needsVisibilityToggle && isHidden) {
              // This child is inside a timed out tree. Hide it.
              var text = node.memoizedProps;
              _instance3 = cloneHiddenTextInstance(_instance3, text, node);
            }
    
            appendChildToContainerChildSet(containerChildSet, _instance3);
          } else if (enableFundamentalAPI && node.tag === FundamentalComponent) {
            var _instance4 = node.stateNode.instance;
    
            if (needsVisibilityToggle && isHidden) {
              // This child is inside a timed out tree. Hide it.
              var _props2 = node.memoizedProps;
              var _type2 = node.type;
              _instance4 = cloneHiddenInstance(_instance4, _type2, _props2, node);
            }
    
            appendChildToContainerChildSet(containerChildSet, _instance4);
          } else if (node.tag === HostPortal) {// If we have a portal child, then we don't want to traverse
            // down its children. Instead, we'll get insertions from each child in
            // the portal directly.
          } else if (node.tag === SuspenseComponent) {
            if ((node.effectTag & Update) !== NoEffect) {
              // Need to toggle the visibility of the primary children.
              var newIsHidden = node.memoizedState !== null;
    
              if (newIsHidden) {
                var primaryChildParent = node.child;
    
                if (primaryChildParent !== null) {
                  if (primaryChildParent.child !== null) {
                    primaryChildParent.child.return = primaryChildParent;
                    appendAllChildrenToContainer(containerChildSet, primaryChildParent, true, newIsHidden);
                  }
    
                  var fallbackChildParent = primaryChildParent.sibling;
    
                  if (fallbackChildParent !== null) {
                    fallbackChildParent.return = node;
                    node = fallbackChildParent;
                    continue;
                  }
                }
              }
            }
    
            if (node.child !== null) {
              // Continue traversing like normal
              node.child.return = node;
              node = node.child;
              continue;
            }
          } else if (node.child !== null) {
            node.child.return = node;
            node = node.child;
            continue;
          } // $FlowFixMe This is correct but Flow is confused by the labeled break.
    
    
          node = node;
    
          if (node === workInProgress) {
            return;
          }
    
          while (node.sibling === null) {
            if (node.return === null || node.return === workInProgress) {
              return;
            }
    
            node = node.return;
          }
    
          node.sibling.return = node.return;
          node = node.sibling;
        }
      };
    
      updateHostContainer = function (workInProgress) {
        var portalOrRoot = workInProgress.stateNode;
        var childrenUnchanged = workInProgress.firstEffect === null;
    
        if (childrenUnchanged) {// No changes, just reuse the existing instance.
        } else {
          var container = portalOrRoot.containerInfo;
          var newChildSet = createContainerChildSet(container); // If children might have changed, we have to add them all to the set.
    
          appendAllChildrenToContainer(newChildSet, workInProgress, false, false);
          portalOrRoot.pendingChildren = newChildSet; // Schedule an update on the container to swap out the container.
    
          markUpdate(workInProgress);
          finalizeContainerChildren(container, newChildSet);
        }
      };
    
      updateHostComponent$1 = function (current, workInProgress, type, newProps, rootContainerInstance) {
        var currentInstance = current.stateNode;
        var oldProps = current.memoizedProps; // If there are no effects associated with this node, then none of our children had any updates.
        // This guarantees that we can reuse all of them.
    
        var childrenUnchanged = workInProgress.firstEffect === null;
    
        if (childrenUnchanged && oldProps === newProps) {
          // No changes, just reuse the existing instance.
          // Note that this might release a previous clone.
          workInProgress.stateNode = currentInstance;
          return;
        }
    
        var recyclableInstance = workInProgress.stateNode;
        var currentHostContext = getHostContext();
        var updatePayload = null;
    
        if (oldProps !== newProps) {
          updatePayload = prepareUpdate(recyclableInstance, type, oldProps, newProps, rootContainerInstance, currentHostContext);
        }
    
        if (childrenUnchanged && updatePayload === null) {
          // No changes, just reuse the existing instance.
          // Note that this might release a previous clone.
          workInProgress.stateNode = currentInstance;
          return;
        }
    
        var newInstance = cloneInstance(currentInstance, updatePayload, type, oldProps, newProps, workInProgress, childrenUnchanged, recyclableInstance);
    
        if (finalizeInitialChildren(newInstance, type, newProps, rootContainerInstance, currentHostContext)) {
          markUpdate(workInProgress);
        }
    
        workInProgress.stateNode = newInstance;
    
        if (childrenUnchanged) {
          // If there are no other effects in this tree, we need to flag this node as having one.
          // Even though we're not going to use it for anything.
          // Otherwise parents won't know that there are new children to propagate upwards.
          markUpdate(workInProgress);
        } else {
          // If children might have changed, we have to add them all to the set.
          appendAllChildren(newInstance, workInProgress, false, false);
        }
      };
    
      updateHostText$1 = function (current, workInProgress, oldText, newText) {
        if (oldText !== newText) {
          // If the text content differs, we'll create a new text instance for it.
          var rootContainerInstance = getRootHostContainer();
          var currentHostContext = getHostContext();
          workInProgress.stateNode = createTextInstance(newText, rootContainerInstance, currentHostContext, workInProgress); // We'll have to mark it as having an effect, even though we won't use the effect for anything.
          // This lets the parents know that at least one of their children has changed.
    
          markUpdate(workInProgress);
        }
      };
    } else {
      // No host operations
      updateHostContainer = function (workInProgress) {// Noop
      };
    
      updateHostComponent$1 = function (current, workInProgress, type, newProps, rootContainerInstance) {// Noop
      };
    
      updateHostText$1 = function (current, workInProgress, oldText, newText) {// Noop
      };
    }
    
    function cutOffTailIfNeeded(renderState, hasRenderedATailFallback) {
      switch (renderState.tailMode) {
        case 'hidden':
          {
            // Any insertions at the end of the tail list after this point
            // should be invisible. If there are already mounted boundaries
            // anything before them are not considered for collapsing.
            // Therefore we need to go through the whole tail to find if
            // there are any.
            var tailNode = renderState.tail;
            var lastTailNode = null;
    
            while (tailNode !== null) {
              if (tailNode.alternate !== null) {
                lastTailNode = tailNode;
              }
    
              tailNode = tailNode.sibling;
            } // Next we're simply going to delete all insertions after the
            // last rendered item.
    
    
            if (lastTailNode === null) {
              // All remaining items in the tail are insertions.
              renderState.tail = null;
            } else {
              // Detach the insertion after the last node that was already
              // inserted.
              lastTailNode.sibling = null;
            }
    
            break;
          }
    
        case 'collapsed':
          {
            // Any insertions at the end of the tail list after this point
            // should be invisible. If there are already mounted boundaries
            // anything before them are not considered for collapsing.
            // Therefore we need to go through the whole tail to find if
            // there are any.
            var _tailNode = renderState.tail;
            var _lastTailNode = null;
    
            while (_tailNode !== null) {
              if (_tailNode.alternate !== null) {
                _lastTailNode = _tailNode;
              }
    
              _tailNode = _tailNode.sibling;
            } // Next we're simply going to delete all insertions after the
            // last rendered item.
    
    
            if (_lastTailNode === null) {
              // All remaining items in the tail are insertions.
              if (!hasRenderedATailFallback && renderState.tail !== null) {
                // We suspended during the head. We want to show at least one
                // row at the tail. So we'll keep on and cut off the rest.
                renderState.tail.sibling = null;
              } else {
                renderState.tail = null;
              }
            } else {
              // Detach the insertion after the last node that was already
              // inserted.
              _lastTailNode.sibling = null;
            }
    
            break;
          }
      }
    }
    
    function completeWork(current, workInProgress, renderExpirationTime) {
      var newProps = workInProgress.pendingProps;
    
      switch (workInProgress.tag) {
        case IndeterminateComponent:
          break;
    
        case LazyComponent:
          break;
    
        case SimpleMemoComponent:
        case FunctionComponent:
          break;
    
        case ClassComponent:
          {
            var Component = workInProgress.type;
    
            if (isContextProvider(Component)) {
              popContext(workInProgress);
            }
    
            break;
          }
    
        case HostRoot:
          {
            popHostContainer(workInProgress);
            popTopLevelContextObject(workInProgress);
            var fiberRoot = workInProgress.stateNode;
    
            if (fiberRoot.pendingContext) {
              fiberRoot.context = fiberRoot.pendingContext;
              fiberRoot.pendingContext = null;
            }
    
            if (current === null || current.child === null) {
              // If we hydrated, pop so that we can delete any remaining children
              // that weren't hydrated.
              var wasHydrated = popHydrationState(workInProgress);
    
              if (wasHydrated) {
                // If we hydrated, then we'll need to schedule an update for
                // the commit side-effects on the root.
                markUpdate(workInProgress);
              }
            }
    
            updateHostContainer(workInProgress);
            break;
          }
    
        case HostComponent:
          {
            popHostContext(workInProgress);
            var rootContainerInstance = getRootHostContainer();
            var type = workInProgress.type;
    
            if (current !== null && workInProgress.stateNode != null) {
              updateHostComponent$1(current, workInProgress, type, newProps, rootContainerInstance);
    
              if (enableFlareAPI) {
                var prevListeners = current.memoizedProps.listeners;
                var nextListeners = newProps.listeners;
    
                if (prevListeners !== nextListeners) {
                  markUpdate(workInProgress);
                }
              }
    
              if (current.ref !== workInProgress.ref) {
                markRef$1(workInProgress);
              }
            } else {
              if (!newProps) {
                (function () {
                  if (!(workInProgress.stateNode !== null)) {
                    {
                      throw ReactError(Error("We must have new props for new mounts. This error is likely caused by a bug in React. Please file an issue."));
                    }
                  }
                })(); // This can happen when we abort work.
    
    
                break;
              }
    
              var currentHostContext = getHostContext(); // TODO: Move createInstance to beginWork and keep it on a context
              // "stack" as the parent. Then append children as we go in beginWork
              // or completeWork depending on we want to add then top->down or
              // bottom->up. Top->down is faster in IE11.
    
              var _wasHydrated = popHydrationState(workInProgress);
    
              if (_wasHydrated) {
                // TODO: Move this and createInstance step into the beginPhase
                // to consolidate.
                if (prepareToHydrateHostInstance(workInProgress, rootContainerInstance, currentHostContext)) {
                  // If changes to the hydrated node needs to be applied at the
                  // commit-phase we mark this as such.
                  markUpdate(workInProgress);
                }
    
                if (enableFlareAPI) {
                  var listeners = newProps.listeners;
    
                  if (listeners != null) {
                    updateEventListeners(listeners, workInProgress, rootContainerInstance);
                  }
                }
              } else {
                var instance = createInstance(type, newProps, rootContainerInstance, currentHostContext, workInProgress);
                appendAllChildren(instance, workInProgress, false, false); // This needs to be set before we mount Flare event listeners
    
                workInProgress.stateNode = instance;
    
                if (enableFlareAPI) {
                  var _listeners = newProps.listeners;
    
                  if (_listeners != null) {
                    updateEventListeners(_listeners, workInProgress, rootContainerInstance);
                  }
                } // Certain renderers require commit-time effects for initial mount.
                // (eg DOM renderer supports auto-focus for certain elements).
                // Make sure such renderers get scheduled for later work.
    
    
                if (finalizeInitialChildren(instance, type, newProps, rootContainerInstance, currentHostContext)) {
                  markUpdate(workInProgress);
                }
              }
    
              if (workInProgress.ref !== null) {
                // If there is a ref on a host node we need to schedule a callback
                markRef$1(workInProgress);
              }
            }
    
            break;
          }
    
        case HostText:
          {
            var newText = newProps;
    
            if (current && workInProgress.stateNode != null) {
              var oldText = current.memoizedProps; // If we have an alternate, that means this is an update and we need
              // to schedule a side-effect to do the updates.
    
              updateHostText$1(current, workInProgress, oldText, newText);
            } else {
              if (typeof newText !== 'string') {
                (function () {
                  if (!(workInProgress.stateNode !== null)) {
                    {
                      throw ReactError(Error("We must have new props for new mounts. This error is likely caused by a bug in React. Please file an issue."));
                    }
                  }
                })(); // This can happen when we abort work.
    
              }
    
              var _rootContainerInstance = getRootHostContainer();
    
              var _currentHostContext = getHostContext();
    
              var _wasHydrated2 = popHydrationState(workInProgress);
    
              if (_wasHydrated2) {
                if (prepareToHydrateHostTextInstance(workInProgress)) {
                  markUpdate(workInProgress);
                }
              } else {
                workInProgress.stateNode = createTextInstance(newText, _rootContainerInstance, _currentHostContext, workInProgress);
              }
            }
    
            break;
          }
    
        case ForwardRef:
          break;
    
        case SuspenseComponent:
          {
            popSuspenseContext(workInProgress);
            var nextState = workInProgress.memoizedState;
    
            if (enableSuspenseServerRenderer) {
              if (nextState !== null && nextState.dehydrated !== null) {
                if (current === null) {
                  var _wasHydrated3 = popHydrationState(workInProgress);
    
                  (function () {
                    if (!_wasHydrated3) {
                      {
                        throw ReactError(Error("A dehydrated suspense component was completed without a hydrated node. This is probably a bug in React."));
                      }
                    }
                  })();
    
                  prepareToHydrateHostSuspenseInstance(workInProgress);
    
                  if (enableSchedulerTracing) {
                    markSpawnedWork(Never);
                  }
    
                  return null;
                } else {
                  // We should never have been in a hydration state if we didn't have a current.
                  // However, in some of those paths, we might have reentered a hydration state
                  // and then we might be inside a hydration state. In that case, we'll need to
                  // exit out of it.
                  resetHydrationState();
    
                  if ((workInProgress.effectTag & DidCapture) === NoEffect) {
                    // This boundary did not suspend so it's now hydrated and unsuspended.
                    workInProgress.memoizedState = null;
                  } // If nothing suspended, we need to schedule an effect to mark this boundary
                  // as having hydrated so events know that they're free be invoked.
                  // It's also a signal to replay events and the suspense callback.
                  // If something suspended, schedule an effect to attach retry listeners.
                  // So we might as well always mark this.
    
    
                  workInProgress.effectTag |= Update;
                  return null;
                }
              }
            }
    
            if ((workInProgress.effectTag & DidCapture) !== NoEffect) {
              // Something suspended. Re-render with the fallback children.
              workInProgress.expirationTime = renderExpirationTime; // Do not reset the effect list.
    
              return workInProgress;
            }
    
            var nextDidTimeout = nextState !== null;
            var prevDidTimeout = false;
    
            if (current === null) {
              // In cases where we didn't find a suitable hydration boundary we never
              // put this in dehydrated mode, but we still need to pop the hydration
              // state since we might be inside the insertion tree.
              popHydrationState(workInProgress);
            } else {
              var prevState = current.memoizedState;
              prevDidTimeout = prevState !== null;
    
              if (!nextDidTimeout && prevState !== null) {
                // We just switched from the fallback to the normal children.
                // Delete the fallback.
                // TODO: Would it be better to store the fallback fragment on
                // the stateNode during the begin phase?
                var currentFallbackChild = current.child.sibling;
    
                if (currentFallbackChild !== null) {
                  // Deletions go at the beginning of the return fiber's effect list
                  var first = workInProgress.firstEffect;
    
                  if (first !== null) {
                    workInProgress.firstEffect = currentFallbackChild;
                    currentFallbackChild.nextEffect = first;
                  } else {
                    workInProgress.firstEffect = workInProgress.lastEffect = currentFallbackChild;
                    currentFallbackChild.nextEffect = null;
                  }
    
                  currentFallbackChild.effectTag = Deletion;
                }
              }
            }
    
            if (nextDidTimeout && !prevDidTimeout) {
              // If this subtreee is running in batched mode we can suspend,
              // otherwise we won't suspend.
              // TODO: This will still suspend a synchronous tree if anything
              // in the concurrent tree already suspended during this render.
              // This is a known bug.
              if ((workInProgress.mode & BatchedMode) !== NoMode) {
                // TODO: Move this back to throwException because this is too late
                // if this is a large tree which is common for initial loads. We
                // don't know if we should restart a render or not until we get
                // this marker, and this is too late.
                // If this render already had a ping or lower pri updates,
                // and this is the first time we know we're going to suspend we
                // should be able to immediately restart from within throwException.
                var hasInvisibleChildContext = current === null && workInProgress.memoizedProps.unstable_avoidThisFallback !== true;
    
                if (hasInvisibleChildContext || hasSuspenseContext(suspenseStackCursor.current, InvisibleParentSuspenseContext)) {
                  // If this was in an invisible tree or a new render, then showing
                  // this boundary is ok.
                  renderDidSuspend();
                } else {
                  // Otherwise, we're going to have to hide content so we should
                  // suspend for longer if possible.
                  renderDidSuspendDelayIfPossible();
                }
              }
            }
    
            if (supportsPersistence) {
              // TODO: Only schedule updates if not prevDidTimeout.
              if (nextDidTimeout) {
                // If this boundary just timed out, schedule an effect to attach a
                // retry listener to the proimse. This flag is also used to hide the
                // primary children.
                workInProgress.effectTag |= Update;
              }
            }
    
            if (supportsMutation) {
              // TODO: Only schedule updates if these values are non equal, i.e. it changed.
              if (nextDidTimeout || prevDidTimeout) {
                // If this boundary just timed out, schedule an effect to attach a
                // retry listener to the proimse. This flag is also used to hide the
                // primary children. In mutation mode, we also need the flag to
                // *unhide* children that were previously hidden, so check if the
                // is currently timed out, too.
                workInProgress.effectTag |= Update;
              }
            }
    
            if (enableSuspenseCallback && workInProgress.updateQueue !== null && workInProgress.memoizedProps.suspenseCallback != null) {
              // Always notify the callback
              workInProgress.effectTag |= Update;
            }
    
            break;
          }
    
        case Fragment:
          break;
    
        case Mode:
          break;
    
        case Profiler:
          break;
    
        case HostPortal:
          popHostContainer(workInProgress);
          updateHostContainer(workInProgress);
          break;
    
        case ContextProvider:
          // Pop provider fiber
          popProvider(workInProgress);
          break;
    
        case ContextConsumer:
          break;
    
        case MemoComponent:
          break;
    
        case IncompleteClassComponent:
          {
            // Same as class component case. I put it down here so that the tags are
            // sequential to ensure this switch is compiled to a jump table.
            var _Component = workInProgress.type;
    
            if (isContextProvider(_Component)) {
              popContext(workInProgress);
            }
    
            break;
          }
    
        case SuspenseListComponent:
          {
            popSuspenseContext(workInProgress);
            var renderState = workInProgress.memoizedState;
    
            if (renderState === null) {
              // We're running in the default, "independent" mode. We don't do anything
              // in this mode.
              break;
            }
    
            var didSuspendAlready = (workInProgress.effectTag & DidCapture) !== NoEffect;
            var renderedTail = renderState.rendering;
    
            if (renderedTail === null) {
              // We just rendered the head.
              if (!didSuspendAlready) {
                // This is the first pass. We need to figure out if anything is still
                // suspended in the rendered set.
                // If new content unsuspended, but there's still some content that
                // didn't. Then we need to do a second pass that forces everything
                // to keep showing their fallbacks.
                // We might be suspended if something in this render pass suspended, or
                // something in the previous committed pass suspended. Otherwise,
                // there's no chance so we can skip the expensive call to
                // findFirstSuspended.
                var cannotBeSuspended = renderHasNotSuspendedYet() && (current === null || (current.effectTag & DidCapture) === NoEffect);
    
                if (!cannotBeSuspended) {
                  var row = workInProgress.child;
    
                  while (row !== null) {
                    var suspended = findFirstSuspended(row);
    
                    if (suspended !== null) {
                      didSuspendAlready = true;
                      workInProgress.effectTag |= DidCapture;
                      cutOffTailIfNeeded(renderState, false); // If this is a newly suspended tree, it might not get committed as
                      // part of the second pass. In that case nothing will subscribe to
                      // its thennables. Instead, we'll transfer its thennables to the
                      // SuspenseList so that it can retry if they resolve.
                      // There might be multiple of these in the list but since we're
                      // going to wait for all of them anyway, it doesn't really matter
                      // which ones gets to ping. In theory we could get clever and keep
                      // track of how many dependencies remain but it gets tricky because
                      // in the meantime, we can add/remove/change items and dependencies.
                      // We might bail out of the loop before finding any but that
                      // doesn't matter since that means that the other boundaries that
                      // we did find already has their listeners attached.
    
                      var newThennables = suspended.updateQueue;
    
                      if (newThennables !== null) {
                        workInProgress.updateQueue = newThennables;
                        workInProgress.effectTag |= Update;
                      } // Rerender the whole list, but this time, we'll force fallbacks
                      // to stay in place.
                      // Reset the effect list before doing the second pass since that's now invalid.
    
    
                      workInProgress.firstEffect = workInProgress.lastEffect = null; // Reset the child fibers to their original state.
    
                      resetChildFibers(workInProgress, renderExpirationTime); // Set up the Suspense Context to force suspense and immediately
                      // rerender the children.
    
                      pushSuspenseContext(workInProgress, setShallowSuspenseContext(suspenseStackCursor.current, ForceSuspenseFallback));
                      return workInProgress.child;
                    }
    
                    row = row.sibling;
                  }
                }
              } else {
                cutOffTailIfNeeded(renderState, false);
              } // Next we're going to render the tail.
    
            } else {
              // Append the rendered row to the child list.
              if (!didSuspendAlready) {
                var _suspended = findFirstSuspended(renderedTail);
    
                if (_suspended !== null) {
                  workInProgress.effectTag |= DidCapture;
                  didSuspendAlready = true;
                  cutOffTailIfNeeded(renderState, true); // This might have been modified.
    
                  if (renderState.tail === null && renderState.tailMode === 'hidden') {
                    // We need to delete the row we just rendered.
                    // Ensure we transfer the update queue to the parent.
                    var _newThennables = _suspended.updateQueue;
    
                    if (_newThennables !== null) {
                      workInProgress.updateQueue = _newThennables;
                      workInProgress.effectTag |= Update;
                    } // Reset the effect list to what it w as before we rendered this
                    // child. The nested children have already appended themselves.
    
    
                    var lastEffect = workInProgress.lastEffect = renderState.lastEffect; // Remove any effects that were appended after this point.
    
                    if (lastEffect !== null) {
                      lastEffect.nextEffect = null;
                    } // We're done.
    
    
                    return null;
                  }
                } else if (now() > renderState.tailExpiration && renderExpirationTime > Never) {
                  // We have now passed our CPU deadline and we'll just give up further
                  // attempts to render the main content and only render fallbacks.
                  // The assumption is that this is usually faster.
                  workInProgress.effectTag |= DidCapture;
                  didSuspendAlready = true;
                  cutOffTailIfNeeded(renderState, false); // Since nothing actually suspended, there will nothing to ping this
                  // to get it started back up to attempt the next item. If we can show
                  // them, then they really have the same priority as this render.
                  // So we'll pick it back up the very next render pass once we've had
                  // an opportunity to yield for paint.
    
                  var nextPriority = renderExpirationTime - 1;
                  workInProgress.expirationTime = workInProgress.childExpirationTime = nextPriority;
    
                  if (enableSchedulerTracing) {
                    markSpawnedWork(nextPriority);
                  }
                }
              }
    
              if (renderState.isBackwards) {
                // The effect list of the backwards tail will have been added
                // to the end. This breaks the guarantee that life-cycles fire in
                // sibling order but that isn't a strong guarantee promised by React.
                // Especially since these might also just pop in during future commits.
                // Append to the beginning of the list.
                renderedTail.sibling = workInProgress.child;
                workInProgress.child = renderedTail;
              } else {
                var previousSibling = renderState.last;
    
                if (previousSibling !== null) {
                  previousSibling.sibling = renderedTail;
                } else {
                  workInProgress.child = renderedTail;
                }
    
                renderState.last = renderedTail;
              }
            }
    
            if (renderState.tail !== null) {
              // We still have tail rows to render.
              if (renderState.tailExpiration === 0) {
                // Heuristic for how long we're willing to spend rendering rows
                // until we just give up and show what we have so far.
                var TAIL_EXPIRATION_TIMEOUT_MS = 500;
                renderState.tailExpiration = now() + TAIL_EXPIRATION_TIMEOUT_MS;
              } // Pop a row.
    
    
              var next = renderState.tail;
              renderState.rendering = next;
              renderState.tail = next.sibling;
              renderState.lastEffect = workInProgress.lastEffect;
              next.sibling = null; // Restore the context.
              // TODO: We can probably just avoid popping it instead and only
              // setting it the first time we go from not suspended to suspended.
    
              var suspenseContext = suspenseStackCursor.current;
    
              if (didSuspendAlready) {
                suspenseContext = setShallowSuspenseContext(suspenseContext, ForceSuspenseFallback);
              } else {
                suspenseContext = setDefaultShallowSuspenseContext(suspenseContext);
              }
    
              pushSuspenseContext(workInProgress, suspenseContext); // Do a pass over the next row.
    
              return next;
            }
    
            break;
          }
    
        case FundamentalComponent:
          {
            if (enableFundamentalAPI) {
              var fundamentalImpl = workInProgress.type.impl;
              var fundamentalInstance = workInProgress.stateNode;
    
              if (fundamentalInstance === null) {
                var getInitialState = fundamentalImpl.getInitialState;
                var fundamentalState;
    
                if (getInitialState !== undefined) {
                  fundamentalState = getInitialState(newProps);
                }
    
                fundamentalInstance = workInProgress.stateNode = createFundamentalStateInstance(workInProgress, newProps, fundamentalImpl, fundamentalState || {});
    
                var _instance5 = getFundamentalComponentInstance(fundamentalInstance);
    
                fundamentalInstance.instance = _instance5;
    
                if (fundamentalImpl.reconcileChildren === false) {
                  return null;
                }
    
                appendAllChildren(_instance5, workInProgress, false, false);
                mountFundamentalComponent(fundamentalInstance);
              } else {
                // We fire update in commit phase
                var prevProps = fundamentalInstance.props;
                fundamentalInstance.prevProps = prevProps;
                fundamentalInstance.props = newProps;
                fundamentalInstance.currentFiber = workInProgress;
    
                if (supportsPersistence) {
                  var _instance6 = cloneFundamentalInstance(fundamentalInstance);
    
                  fundamentalInstance.instance = _instance6;
                  appendAllChildren(_instance6, workInProgress, false, false);
                }
    
                var shouldUpdate = shouldUpdateFundamentalComponent(fundamentalInstance);
    
                if (shouldUpdate) {
                  markUpdate(workInProgress);
                }
              }
            }
    
            break;
          }
    
        case ScopeComponent:
          {
            if (enableScopeAPI) {
              if (current === null) {
                var _type3 = workInProgress.type;
                var scopeInstance = {
                  fiber: workInProgress,
                  methods: null
                };
                workInProgress.stateNode = scopeInstance;
                scopeInstance.methods = createScopeMethods(_type3, scopeInstance);
    
                if (enableFlareAPI) {
                  var _listeners2 = newProps.listeners;
    
                  if (_listeners2 != null) {
                    var _rootContainerInstance2 = getRootHostContainer();
    
                    updateEventListeners(_listeners2, workInProgress, _rootContainerInstance2);
                  }
                }
    
                if (workInProgress.ref !== null) {
                  markRef$1(workInProgress);
                  markUpdate(workInProgress);
                }
              } else {
                if (enableFlareAPI) {
                  var _prevListeners = current.memoizedProps.listeners;
                  var _nextListeners = newProps.listeners;
    
                  if (_prevListeners !== _nextListeners || workInProgress.ref !== null) {
                    markUpdate(workInProgress);
                  }
                } else {
                  if (workInProgress.ref !== null) {
                    markUpdate(workInProgress);
                  }
                }
    
                if (current.ref !== workInProgress.ref) {
                  markRef$1(workInProgress);
                }
              }
            }
    
            break;
          }
    
        default:
          (function () {
            {
              {
                throw ReactError(Error("Unknown unit of work tag (" + workInProgress.tag + "). This error is likely caused by a bug in React. Please file an issue."));
              }
            }
          })();
    
      }
    
      return null;
    }
    
    function unwindWork(workInProgress, renderExpirationTime) {
      switch (workInProgress.tag) {
        case ClassComponent:
          {
            var Component = workInProgress.type;
    
            if (isContextProvider(Component)) {
              popContext(workInProgress);
            }
    
            var effectTag = workInProgress.effectTag;
    
            if (effectTag & ShouldCapture) {
              workInProgress.effectTag = effectTag & ~ShouldCapture | DidCapture;
              return workInProgress;
            }
    
            return null;
          }
    
        case HostRoot:
          {
            popHostContainer(workInProgress);
            popTopLevelContextObject(workInProgress);
            var _effectTag = workInProgress.effectTag;
    
            (function () {
              if (!((_effectTag & DidCapture) === NoEffect)) {
                {
                  throw ReactError(Error("The root failed to unmount after an error. This is likely a bug in React. Please file an issue."));
                }
              }
            })();
    
            workInProgress.effectTag = _effectTag & ~ShouldCapture | DidCapture;
            return workInProgress;
          }
    
        case HostComponent:
          {
            // TODO: popHydrationState
            popHostContext(workInProgress);
            return null;
          }
    
        case SuspenseComponent:
          {
            popSuspenseContext(workInProgress);
    
            if (enableSuspenseServerRenderer) {
              var suspenseState = workInProgress.memoizedState;
    
              if (suspenseState !== null && suspenseState.dehydrated !== null) {
                (function () {
                  if (!(workInProgress.alternate !== null)) {
                    {
                      throw ReactError(Error("Threw in newly mounted dehydrated component. This is likely a bug in React. Please file an issue."));
                    }
                  }
                })();
    
                resetHydrationState();
              }
            }
    
            var _effectTag2 = workInProgress.effectTag;
    
            if (_effectTag2 & ShouldCapture) {
              workInProgress.effectTag = _effectTag2 & ~ShouldCapture | DidCapture; // Captured a suspense effect. Re-render the boundary.
    
              return workInProgress;
            }
    
            return null;
          }
    
        case SuspenseListComponent:
          {
            popSuspenseContext(workInProgress); // SuspenseList doesn't actually catch anything. It should've been
            // caught by a nested boundary. If not, it should bubble through.
    
            return null;
          }
    
        case HostPortal:
          popHostContainer(workInProgress);
          return null;
    
        case ContextProvider:
          popProvider(workInProgress);
          return null;
    
        default:
          return null;
      }
    }
    
    function unwindInterruptedWork(interruptedWork) {
      switch (interruptedWork.tag) {
        case ClassComponent:
          {
            var childContextTypes = interruptedWork.type.childContextTypes;
    
            if (childContextTypes !== null && childContextTypes !== undefined) {
              popContext(interruptedWork);
            }
    
            break;
          }
    
        case HostRoot:
          {
            popHostContainer(interruptedWork);
            popTopLevelContextObject(interruptedWork);
            break;
          }
    
        case HostComponent:
          {
            popHostContext(interruptedWork);
            break;
          }
    
        case HostPortal:
          popHostContainer(interruptedWork);
          break;
    
        case SuspenseComponent:
          popSuspenseContext(interruptedWork);
          break;
    
        case SuspenseListComponent:
          popSuspenseContext(interruptedWork);
          break;
    
        case ContextProvider:
          popProvider(interruptedWork);
          break;
    
        default:
          break;
      }
    }
    
    function createCapturedValue(value, source) {
      // If the value is an error, call this function immediately after it is thrown
      // so the stack is accurate.
      return {
        value: value,
        source: source,
        stack: getStackByFiberInDevAndProd(source)
      };
    }
    
    // This module is forked in different environments.
    // By default, return `true` to log errors to the console.
    // Forks can return `false` if this isn't desirable.
    function showErrorDialog(capturedError) {
      return true;
    }
    
    function logCapturedError(capturedError) {
      var logError = showErrorDialog(capturedError); // Allow injected showErrorDialog() to prevent default console.error logging.
      // This enables renderers like ReactNative to better manage redbox behavior.
    
      if (logError === false) {
        return;
      }
    
      var error = capturedError.error;
    
      {
        var componentName = capturedError.componentName,
            componentStack = capturedError.componentStack,
            errorBoundaryName = capturedError.errorBoundaryName,
            errorBoundaryFound = capturedError.errorBoundaryFound,
            willRetry = capturedError.willRetry; // Browsers support silencing uncaught errors by calling
        // `preventDefault()` in window `error` handler.
        // We record this information as an expando on the error.
    
        if (error != null && error._suppressLogging) {
          if (errorBoundaryFound && willRetry) {
            // The error is recoverable and was silenced.
            // Ignore it and don't print the stack addendum.
            // This is handy for testing error boundaries without noise.
            return;
          } // The error is fatal. Since the silencing might have
          // been accidental, we'll surface it anyway.
          // However, the browser would have silenced the original error
          // so we'll print it first, and then print the stack addendum.
    
    
          console.error(error); // For a more detailed description of this block, see:
          // https://github.com/facebook/react/pull/13384
        }
    
        var componentNameMessage = componentName ? "The above error occurred in the <" + componentName + "> component:" : 'The above error occurred in one of your React components:';
        var errorBoundaryMessage; // errorBoundaryFound check is sufficient; errorBoundaryName check is to satisfy Flow.
    
        if (errorBoundaryFound && errorBoundaryName) {
          if (willRetry) {
            errorBoundaryMessage = "React will try to recreate this component tree from scratch " + ("using the error boundary you provided, " + errorBoundaryName + ".");
          } else {
            errorBoundaryMessage = "This error was initially handled by the error boundary " + errorBoundaryName + ".\n" + "Recreating the tree from scratch failed so React will unmount the tree.";
          }
        } else {
          errorBoundaryMessage = 'Consider adding an error boundary to your tree to customize error handling behavior.\n' + 'Visit https://fb.me/react-error-boundaries to learn more about error boundaries.';
        }
    
        var combinedMessage = "" + componentNameMessage + componentStack + "\n\n" + ("" + errorBoundaryMessage); // In development, we provide our own message with just the component stack.
        // We don't include the original error message and JS stack because the browser
        // has already printed it. Even if the application swallows the error, it is still
        // displayed by the browser thanks to the DEV-only fake event trick in ReactErrorUtils.
    
        console.error(combinedMessage);
      }
    }
    
    var didWarnAboutUndefinedSnapshotBeforeUpdate = null;
    
    {
      didWarnAboutUndefinedSnapshotBeforeUpdate = new Set();
    }
    
    var PossiblyWeakSet = typeof WeakSet === 'function' ? WeakSet : Set;
    function logError(boundary, errorInfo) {
      var source = errorInfo.source;
      var stack = errorInfo.stack;
    
      if (stack === null && source !== null) {
        stack = getStackByFiberInDevAndProd(source);
      }
    
      var capturedError = {
        componentName: source !== null ? getComponentName(source.type) : null,
        componentStack: stack !== null ? stack : '',
        error: errorInfo.value,
        errorBoundary: null,
        errorBoundaryName: null,
        errorBoundaryFound: false,
        willRetry: false
      };
    
      if (boundary !== null && boundary.tag === ClassComponent) {
        capturedError.errorBoundary = boundary.stateNode;
        capturedError.errorBoundaryName = getComponentName(boundary.type);
        capturedError.errorBoundaryFound = true;
        capturedError.willRetry = true;
      }
    
      try {
        logCapturedError(capturedError);
      } catch (e) {
        // This method must not throw, or React internal state will get messed up.
        // If console.error is overridden, or logCapturedError() shows a dialog that throws,
        // we want to report this error outside of the normal stack as a last resort.
        // https://github.com/facebook/react/issues/13188
        setTimeout(function () {
          throw e;
        });
      }
    }
    
    var callComponentWillUnmountWithTimer = function (current$$1, instance) {
      startPhaseTimer(current$$1, 'componentWillUnmount');
      instance.props = current$$1.memoizedProps;
      instance.state = current$$1.memoizedState;
      instance.componentWillUnmount();
      stopPhaseTimer();
    }; // Capture errors so they don't interrupt unmounting.
    
    
    function safelyCallComponentWillUnmount(current$$1, instance) {
      {
        invokeGuardedCallback(null, callComponentWillUnmountWithTimer, null, current$$1, instance);
    
        if (hasCaughtError()) {
          var unmountError = clearCaughtError();
          captureCommitPhaseError(current$$1, unmountError);
        }
      }
    }
    
    function safelyDetachRef(current$$1) {
      var ref = current$$1.ref;
    
      if (ref !== null) {
        if (typeof ref === 'function') {
          {
            invokeGuardedCallback(null, ref, null, null);
    
            if (hasCaughtError()) {
              var refError = clearCaughtError();
              captureCommitPhaseError(current$$1, refError);
            }
          }
        } else {
          ref.current = null;
        }
      }
    }
    
    function safelyCallDestroy(current$$1, destroy) {
      {
        invokeGuardedCallback(null, destroy, null);
    
        if (hasCaughtError()) {
          var error = clearCaughtError();
          captureCommitPhaseError(current$$1, error);
        }
      }
    }
    
    function commitBeforeMutationLifeCycles(current$$1, finishedWork) {
      switch (finishedWork.tag) {
        case FunctionComponent:
        case ForwardRef:
        case SimpleMemoComponent:
          {
            commitHookEffectList(UnmountSnapshot, NoEffect$1, finishedWork);
            return;
          }
    
        case ClassComponent:
          {
            if (finishedWork.effectTag & Snapshot) {
              if (current$$1 !== null) {
                var prevProps = current$$1.memoizedProps;
                var prevState = current$$1.memoizedState;
                startPhaseTimer(finishedWork, 'getSnapshotBeforeUpdate');
                var instance = finishedWork.stateNode; // We could update instance props and state here,
                // but instead we rely on them being set during last render.
                // TODO: revisit this when we implement resuming.
    
                {
                  if (finishedWork.type === finishedWork.elementType && !didWarnAboutReassigningProps) {
                    !(instance.props === finishedWork.memoizedProps) ? warning$1(false, 'Expected %s props to match memoized props before ' + 'getSnapshotBeforeUpdate. ' + 'This might either be because of a bug in React, or because ' + 'a component reassigns its own `this.props`. ' + 'Please file an issue.', getComponentName(finishedWork.type) || 'instance') : void 0;
                    !(instance.state === finishedWork.memoizedState) ? warning$1(false, 'Expected %s state to match memoized state before ' + 'getSnapshotBeforeUpdate. ' + 'This might either be because of a bug in React, or because ' + 'a component reassigns its own `this.props`. ' + 'Please file an issue.', getComponentName(finishedWork.type) || 'instance') : void 0;
                  }
                }
    
                var snapshot = instance.getSnapshotBeforeUpdate(finishedWork.elementType === finishedWork.type ? prevProps : resolveDefaultProps(finishedWork.type, prevProps), prevState);
    
                {
                  var didWarnSet = didWarnAboutUndefinedSnapshotBeforeUpdate;
    
                  if (snapshot === undefined && !didWarnSet.has(finishedWork.type)) {
                    didWarnSet.add(finishedWork.type);
                    warningWithoutStack$1(false, '%s.getSnapshotBeforeUpdate(): A snapshot value (or null) ' + 'must be returned. You have returned undefined.', getComponentName(finishedWork.type));
                  }
                }
    
                instance.__reactInternalSnapshotBeforeUpdate = snapshot;
                stopPhaseTimer();
              }
            }
    
            return;
          }
    
        case HostRoot:
        case HostComponent:
        case HostText:
        case HostPortal:
        case IncompleteClassComponent:
          // Nothing to do for these component types
          return;
    
        default:
          {
            (function () {
              {
                {
                  throw ReactError(Error("This unit of work tag should not have side-effects. This error is likely caused by a bug in React. Please file an issue."));
                }
              }
            })();
          }
      }
    }
    
    function commitHookEffectList(unmountTag, mountTag, finishedWork) {
      var updateQueue = finishedWork.updateQueue;
      var lastEffect = updateQueue !== null ? updateQueue.lastEffect : null;
    
      if (lastEffect !== null) {
        var firstEffect = lastEffect.next;
        var effect = firstEffect;
    
        do {
          if ((effect.tag & unmountTag) !== NoEffect$1) {
            // Unmount
            var destroy = effect.destroy;
            effect.destroy = undefined;
    
            if (destroy !== undefined) {
              destroy();
            }
          }
    
          if ((effect.tag & mountTag) !== NoEffect$1) {
            // Mount
            var create = effect.create;
            effect.destroy = create();
    
            {
              var _destroy = effect.destroy;
    
              if (_destroy !== undefined && typeof _destroy !== 'function') {
                var addendum = void 0;
    
                if (_destroy === null) {
                  addendum = ' You returned null. If your effect does not require clean ' + 'up, return undefined (or nothing).';
                } else if (typeof _destroy.then === 'function') {
                  addendum = '\n\nIt looks like you wrote useEffect(async () => ...) or returned a Promise. ' + 'Instead, write the async function inside your effect ' + 'and call it immediately:\n\n' + 'useEffect(() => {\n' + '  async function fetchData() {\n' + '    // You can await here\n' + '    const response = await MyAPI.getData(someId);\n' + '    // ...\n' + '  }\n' + '  fetchData();\n' + "}, [someId]); // Or [] if effect doesn't need props or state\n\n" + 'Learn more about data fetching with Hooks: https://fb.me/react-hooks-data-fetching';
                } else {
                  addendum = ' You returned: ' + _destroy;
                }
    
                warningWithoutStack$1(false, 'An effect function must not return anything besides a function, ' + 'which is used for clean-up.%s%s', addendum, getStackByFiberInDevAndProd(finishedWork));
              }
            }
          }
    
          effect = effect.next;
        } while (effect !== firstEffect);
      }
    }
    
    function commitPassiveHookEffects(finishedWork) {
      if ((finishedWork.effectTag & Passive) !== NoEffect) {
        switch (finishedWork.tag) {
          case FunctionComponent:
          case ForwardRef:
          case SimpleMemoComponent:
            {
              commitHookEffectList(UnmountPassive, NoEffect$1, finishedWork);
              commitHookEffectList(NoEffect$1, MountPassive, finishedWork);
              break;
            }
    
          default:
            break;
        }
      }
    }
    
    function commitLifeCycles(finishedRoot, current$$1, finishedWork, committedExpirationTime) {
      switch (finishedWork.tag) {
        case FunctionComponent:
        case ForwardRef:
        case SimpleMemoComponent:
          {
            commitHookEffectList(UnmountLayout, MountLayout, finishedWork);
            break;
          }
    
        case ClassComponent:
          {
            var instance = finishedWork.stateNode;
    
            if (finishedWork.effectTag & Update) {
              if (current$$1 === null) {
                startPhaseTimer(finishedWork, 'componentDidMount'); // We could update instance props and state here,
                // but instead we rely on them being set during last render.
                // TODO: revisit this when we implement resuming.
    
                {
                  if (finishedWork.type === finishedWork.elementType && !didWarnAboutReassigningProps) {
                    !(instance.props === finishedWork.memoizedProps) ? warning$1(false, 'Expected %s props to match memoized props before ' + 'componentDidMount. ' + 'This might either be because of a bug in React, or because ' + 'a component reassigns its own `this.props`. ' + 'Please file an issue.', getComponentName(finishedWork.type) || 'instance') : void 0;
                    !(instance.state === finishedWork.memoizedState) ? warning$1(false, 'Expected %s state to match memoized state before ' + 'componentDidMount. ' + 'This might either be because of a bug in React, or because ' + 'a component reassigns its own `this.props`. ' + 'Please file an issue.', getComponentName(finishedWork.type) || 'instance') : void 0;
                  }
                }
    
                instance.componentDidMount();
                stopPhaseTimer();
              } else {
                var prevProps = finishedWork.elementType === finishedWork.type ? current$$1.memoizedProps : resolveDefaultProps(finishedWork.type, current$$1.memoizedProps);
                var prevState = current$$1.memoizedState;
                startPhaseTimer(finishedWork, 'componentDidUpdate'); // We could update instance props and state here,
                // but instead we rely on them being set during last render.
                // TODO: revisit this when we implement resuming.
    
                {
                  if (finishedWork.type === finishedWork.elementType && !didWarnAboutReassigningProps) {
                    !(instance.props === finishedWork.memoizedProps) ? warning$1(false, 'Expected %s props to match memoized props before ' + 'componentDidUpdate. ' + 'This might either be because of a bug in React, or because ' + 'a component reassigns its own `this.props`. ' + 'Please file an issue.', getComponentName(finishedWork.type) || 'instance') : void 0;
                    !(instance.state === finishedWork.memoizedState) ? warning$1(false, 'Expected %s state to match memoized state before ' + 'componentDidUpdate. ' + 'This might either be because of a bug in React, or because ' + 'a component reassigns its own `this.props`. ' + 'Please file an issue.', getComponentName(finishedWork.type) || 'instance') : void 0;
                  }
                }
    
                instance.componentDidUpdate(prevProps, prevState, instance.__reactInternalSnapshotBeforeUpdate);
                stopPhaseTimer();
              }
            }
    
            var updateQueue = finishedWork.updateQueue;
    
            if (updateQueue !== null) {
              {
                if (finishedWork.type === finishedWork.elementType && !didWarnAboutReassigningProps) {
                  !(instance.props === finishedWork.memoizedProps) ? warning$1(false, 'Expected %s props to match memoized props before ' + 'processing the update queue. ' + 'This might either be because of a bug in React, or because ' + 'a component reassigns its own `this.props`. ' + 'Please file an issue.', getComponentName(finishedWork.type) || 'instance') : void 0;
                  !(instance.state === finishedWork.memoizedState) ? warning$1(false, 'Expected %s state to match memoized state before ' + 'processing the update queue. ' + 'This might either be because of a bug in React, or because ' + 'a component reassigns its own `this.props`. ' + 'Please file an issue.', getComponentName(finishedWork.type) || 'instance') : void 0;
                }
              } // We could update instance props and state here,
              // but instead we rely on them being set during last render.
              // TODO: revisit this when we implement resuming.
    
    
              commitUpdateQueue(finishedWork, updateQueue, instance, committedExpirationTime);
            }
    
            return;
          }
    
        case HostRoot:
          {
            var _updateQueue = finishedWork.updateQueue;
    
            if (_updateQueue !== null) {
              var _instance = null;
    
              if (finishedWork.child !== null) {
                switch (finishedWork.child.tag) {
                  case HostComponent:
                    _instance = getPublicInstance(finishedWork.child.stateNode);
                    break;
    
                  case ClassComponent:
                    _instance = finishedWork.child.stateNode;
                    break;
                }
              }
    
              commitUpdateQueue(finishedWork, _updateQueue, _instance, committedExpirationTime);
            }
    
            return;
          }
    
        case HostComponent:
          {
            var _instance2 = finishedWork.stateNode; // Renderers may schedule work to be done after host components are mounted
            // (eg DOM renderer may schedule auto-focus for inputs and form controls).
            // These effects should only be committed when components are first mounted,
            // aka when there is no current/alternate.
    
            if (current$$1 === null && finishedWork.effectTag & Update) {
              var type = finishedWork.type;
              var props = finishedWork.memoizedProps;
              commitMount(_instance2, type, props, finishedWork);
            }
    
            return;
          }
    
        case HostText:
          {
            // We have no life-cycles associated with text.
            return;
          }
    
        case HostPortal:
          {
            // We have no life-cycles associated with portals.
            return;
          }
    
        case Profiler:
          {
            if (enableProfilerTimer) {
              var onRender = finishedWork.memoizedProps.onRender;
    
              if (typeof onRender === 'function') {
                if (enableSchedulerTracing) {
                  onRender(finishedWork.memoizedProps.id, current$$1 === null ? 'mount' : 'update', finishedWork.actualDuration, finishedWork.treeBaseDuration, finishedWork.actualStartTime, getCommitTime(), finishedRoot.memoizedInteractions);
                } else {
                  onRender(finishedWork.memoizedProps.id, current$$1 === null ? 'mount' : 'update', finishedWork.actualDuration, finishedWork.treeBaseDuration, finishedWork.actualStartTime, getCommitTime());
                }
              }
            }
    
            return;
          }
    
        case SuspenseComponent:
          {
            commitSuspenseHydrationCallbacks(finishedRoot, finishedWork);
            return;
          }
    
        case SuspenseListComponent:
        case IncompleteClassComponent:
        case FundamentalComponent:
        case ScopeComponent:
          return;
    
        default:
          {
            (function () {
              {
                {
                  throw ReactError(Error("This unit of work tag should not have side-effects. This error is likely caused by a bug in React. Please file an issue."));
                }
              }
            })();
          }
      }
    }
    
    function hideOrUnhideAllChildren(finishedWork, isHidden) {
      if (supportsMutation) {
        // We only have the top Fiber that was inserted but we need to recurse down its
        // children to find all the terminal nodes.
        var node = finishedWork;
    
        while (true) {
          if (node.tag === HostComponent) {
            var instance = node.stateNode;
    
            if (isHidden) {
              hideInstance(instance);
            } else {
              unhideInstance(node.stateNode, node.memoizedProps);
            }
          } else if (node.tag === HostText) {
            var _instance3 = node.stateNode;
    
            if (isHidden) {
              hideTextInstance(_instance3);
            } else {
              unhideTextInstance(_instance3, node.memoizedProps);
            }
          } else if (node.tag === SuspenseComponent && node.memoizedState !== null && node.memoizedState.dehydrated === null) {
            // Found a nested Suspense component that timed out. Skip over the
            // primary child fragment, which should remain hidden.
            var fallbackChildFragment = node.child.sibling;
            fallbackChildFragment.return = node;
            node = fallbackChildFragment;
            continue;
          } else if (node.child !== null) {
            node.child.return = node;
            node = node.child;
            continue;
          }
    
          if (node === finishedWork) {
            return;
          }
    
          while (node.sibling === null) {
            if (node.return === null || node.return === finishedWork) {
              return;
            }
    
            node = node.return;
          }
    
          node.sibling.return = node.return;
          node = node.sibling;
        }
      }
    }
    
    function commitAttachRef(finishedWork) {
      var ref = finishedWork.ref;
    
      if (ref !== null) {
        var instance = finishedWork.stateNode;
        var instanceToUse;
    
        switch (finishedWork.tag) {
          case HostComponent:
            instanceToUse = getPublicInstance(instance);
            break;
    
          default:
            instanceToUse = instance;
        } // Moved outside to ensure DCE works with this flag
    
    
        if (enableScopeAPI && finishedWork.tag === ScopeComponent) {
          instanceToUse = instance.methods;
        }
    
        if (typeof ref === 'function') {
          ref(instanceToUse);
        } else {
          {
            if (!ref.hasOwnProperty('current')) {
              warningWithoutStack$1(false, 'Unexpected ref object provided for %s. ' + 'Use either a ref-setter function or React.createRef().%s', getComponentName(finishedWork.type), getStackByFiberInDevAndProd(finishedWork));
            }
          }
    
          ref.current = instanceToUse;
        }
      }
    }
    
    function commitDetachRef(current$$1) {
      var currentRef = current$$1.ref;
    
      if (currentRef !== null) {
        if (typeof currentRef === 'function') {
          currentRef(null);
        } else {
          currentRef.current = null;
        }
      }
    } // User-originating errors (lifecycles and refs) should not interrupt
    // deletion, so don't let them throw. Host-originating errors should
    // interrupt deletion, so it's okay
    
    
    function commitUnmount(finishedRoot, current$$1, renderPriorityLevel) {
      onCommitUnmount(current$$1);
    
      switch (current$$1.tag) {
        case FunctionComponent:
        case ForwardRef:
        case MemoComponent:
        case SimpleMemoComponent:
          {
            var updateQueue = current$$1.updateQueue;
    
            if (updateQueue !== null) {
              var lastEffect = updateQueue.lastEffect;
    
              if (lastEffect !== null) {
                var firstEffect = lastEffect.next; // When the owner fiber is deleted, the destroy function of a passive
                // effect hook is called during the synchronous commit phase. This is
                // a concession to implementation complexity. Calling it in the
                // passive effect phase (like they usually are, when dependencies
                // change during an update) would require either traversing the
                // children of the deleted fiber again, or including unmount effects
                // as part of the fiber effect list.
                //
                // Because this is during the sync commit phase, we need to change
                // the priority.
                //
                // TODO: Reconsider this implementation trade off.
    
                var priorityLevel = renderPriorityLevel > NormalPriority ? NormalPriority : renderPriorityLevel;
                runWithPriority$2(priorityLevel, function () {
                  var effect = firstEffect;
    
                  do {
                    var destroy = effect.destroy;
    
                    if (destroy !== undefined) {
                      safelyCallDestroy(current$$1, destroy);
                    }
    
                    effect = effect.next;
                  } while (effect !== firstEffect);
                });
              }
            }
    
            break;
          }
    
        case ClassComponent:
          {
            safelyDetachRef(current$$1);
            var instance = current$$1.stateNode;
    
            if (typeof instance.componentWillUnmount === 'function') {
              safelyCallComponentWillUnmount(current$$1, instance);
            }
    
            return;
          }
    
        case HostComponent:
          {
            if (enableFlareAPI) {
              var dependencies = current$$1.dependencies;
    
              if (dependencies !== null) {
                var respondersMap = dependencies.responders;
    
                if (respondersMap !== null) {
                  var responderInstances = Array.from(respondersMap.values());
    
                  for (var i = 0, length = responderInstances.length; i < length; i++) {
                    var responderInstance = responderInstances[i];
                    unmountResponderInstance(responderInstance);
                  }
    
                  dependencies.responders = null;
                }
              }
            }
    
            safelyDetachRef(current$$1);
            return;
          }
    
        case HostPortal:
          {
            // TODO: this is recursive.
            // We are also not using this parent because
            // the portal will get pushed immediately.
            if (supportsMutation) {
              unmountHostComponents(finishedRoot, current$$1, renderPriorityLevel);
            } else if (supportsPersistence) {
              emptyPortalContainer(current$$1);
            }
    
            return;
          }
    
        case FundamentalComponent:
          {
            if (enableFundamentalAPI) {
              var fundamentalInstance = current$$1.stateNode;
    
              if (fundamentalInstance !== null) {
                unmountFundamentalComponent(fundamentalInstance);
                current$$1.stateNode = null;
              }
            }
    
            return;
          }
    
        case DehydratedFragment:
          {
            if (enableSuspenseCallback) {
              var hydrationCallbacks = finishedRoot.hydrationCallbacks;
    
              if (hydrationCallbacks !== null) {
                var onDeleted = hydrationCallbacks.onDeleted;
    
                if (onDeleted) {
                  onDeleted(current$$1.stateNode);
                }
              }
            }
    
            return;
          }
    
        case ScopeComponent:
          {
            if (enableScopeAPI) {
              safelyDetachRef(current$$1);
            }
          }
      }
    }
    
    function commitNestedUnmounts(finishedRoot, root, renderPriorityLevel) {
      // While we're inside a removed host node we don't want to call
      // removeChild on the inner nodes because they're removed by the top
      // call anyway. We also want to call componentWillUnmount on all
      // composites before this host node is removed from the tree. Therefore
      // we do an inner loop while we're still inside the host node.
      var node = root;
    
      while (true) {
        commitUnmount(finishedRoot, node, renderPriorityLevel); // Visit children because they may contain more composite or host nodes.
        // Skip portals because commitUnmount() currently visits them recursively.
    
        if (node.child !== null && ( // If we use mutation we drill down into portals using commitUnmount above.
        // If we don't use mutation we drill down into portals here instead.
        !supportsMutation || node.tag !== HostPortal)) {
          node.child.return = node;
          node = node.child;
          continue;
        }
    
        if (node === root) {
          return;
        }
    
        while (node.sibling === null) {
          if (node.return === null || node.return === root) {
            return;
          }
    
          node = node.return;
        }
    
        node.sibling.return = node.return;
        node = node.sibling;
      }
    }
    
    function detachFiber(current$$1) {
      var alternate = current$$1.alternate; // Cut off the return pointers to disconnect it from the tree. Ideally, we
      // should clear the child pointer of the parent alternate to let this
      // get GC:ed but we don't know which for sure which parent is the current
      // one so we'll settle for GC:ing the subtree of this child. This child
      // itself will be GC:ed when the parent updates the next time.
    
      current$$1.return = null;
      current$$1.child = null;
      current$$1.memoizedState = null;
      current$$1.updateQueue = null;
      current$$1.dependencies = null;
      current$$1.alternate = null;
      current$$1.firstEffect = null;
      current$$1.lastEffect = null;
      current$$1.pendingProps = null;
      current$$1.memoizedProps = null;
    
      if (alternate !== null) {
        detachFiber(alternate);
      }
    }
    
    function emptyPortalContainer(current$$1) {
      if (!supportsPersistence) {
        return;
      }
    
      var portal = current$$1.stateNode;
      var containerInfo = portal.containerInfo;
      var emptyChildSet = createContainerChildSet(containerInfo);
      replaceContainerChildren(containerInfo, emptyChildSet);
    }
    
    function commitContainer(finishedWork) {
      if (!supportsPersistence) {
        return;
      }
    
      switch (finishedWork.tag) {
        case ClassComponent:
        case HostComponent:
        case HostText:
        case FundamentalComponent:
          {
            return;
          }
    
        case HostRoot:
        case HostPortal:
          {
            var portalOrRoot = finishedWork.stateNode;
            var containerInfo = portalOrRoot.containerInfo,
                pendingChildren = portalOrRoot.pendingChildren;
            replaceContainerChildren(containerInfo, pendingChildren);
            return;
          }
    
        default:
          {
            (function () {
              {
                {
                  throw ReactError(Error("This unit of work tag should not have side-effects. This error is likely caused by a bug in React. Please file an issue."));
                }
              }
            })();
          }
      }
    }
    
    function getHostParentFiber(fiber) {
      var parent = fiber.return;
    
      while (parent !== null) {
        if (isHostParent(parent)) {
          return parent;
        }
    
        parent = parent.return;
      }
    
      (function () {
        {
          {
            throw ReactError(Error("Expected to find a host parent. This error is likely caused by a bug in React. Please file an issue."));
          }
        }
      })();
    }
    
    function isHostParent(fiber) {
      return fiber.tag === HostComponent || fiber.tag === HostRoot || fiber.tag === HostPortal;
    }
    
    function getHostSibling(fiber) {
      // We're going to search forward into the tree until we find a sibling host
      // node. Unfortunately, if multiple insertions are done in a row we have to
      // search past them. This leads to exponential search for the next sibling.
      // TODO: Find a more efficient way to do this.
      var node = fiber;
    
      siblings: while (true) {
        // If we didn't find anything, let's try the next sibling.
        while (node.sibling === null) {
          if (node.return === null || isHostParent(node.return)) {
            // If we pop out of the root or hit the parent the fiber we are the
            // last sibling.
            return null;
          }
    
          node = node.return;
        }
    
        node.sibling.return = node.return;
        node = node.sibling;
    
        while (node.tag !== HostComponent && node.tag !== HostText && node.tag !== DehydratedFragment) {
          // If it is not host node and, we might have a host node inside it.
          // Try to search down until we find one.
          if (node.effectTag & Placement) {
            // If we don't have a child, try the siblings instead.
            continue siblings;
          } // If we don't have a child, try the siblings instead.
          // We also skip portals because they are not part of this host tree.
    
    
          if (node.child === null || node.tag === HostPortal) {
            continue siblings;
          } else {
            node.child.return = node;
            node = node.child;
          }
        } // Check if this host node is stable or about to be placed.
    
    
        if (!(node.effectTag & Placement)) {
          // Found it!
          return node.stateNode;
        }
      }
    }
    
    function commitPlacement(finishedWork) {
      if (!supportsMutation) {
        return;
      } // Recursively insert all host nodes into the parent.
    
    
      var parentFiber = getHostParentFiber(finishedWork); // Note: these two variables *must* always be updated together.
    
      var parent;
      var isContainer;
      var parentStateNode = parentFiber.stateNode;
    
      switch (parentFiber.tag) {
        case HostComponent:
          parent = parentStateNode;
          isContainer = false;
          break;
    
        case HostRoot:
          parent = parentStateNode.containerInfo;
          isContainer = true;
          break;
    
        case HostPortal:
          parent = parentStateNode.containerInfo;
          isContainer = true;
          break;
    
        case FundamentalComponent:
          if (enableFundamentalAPI) {
            parent = parentStateNode.instance;
            isContainer = false;
          }
    
        // eslint-disable-next-line-no-fallthrough
    
        default:
          (function () {
            {
              {
                throw ReactError(Error("Invalid host parent fiber. This error is likely caused by a bug in React. Please file an issue."));
              }
            }
          })();
    
      }
    
      if (parentFiber.effectTag & ContentReset) {
        // Reset the text content of the parent before doing any insertions
        resetTextContent(parent); // Clear ContentReset from the effect tag
    
        parentFiber.effectTag &= ~ContentReset;
      }
    
      var before = getHostSibling(finishedWork); // We only have the top Fiber that was inserted but we need to recurse down its
      // children to find all the terminal nodes.
    
      var node = finishedWork;
    
      while (true) {
        var isHost = node.tag === HostComponent || node.tag === HostText;
    
        if (isHost || enableFundamentalAPI && node.tag === FundamentalComponent) {
          var stateNode = isHost ? node.stateNode : node.stateNode.instance;
    
          if (before) {
            if (isContainer) {
              insertInContainerBefore(parent, stateNode, before);
            } else {
              insertBefore(parent, stateNode, before);
            }
          } else {
            if (isContainer) {
              appendChildToContainer(parent, stateNode);
            } else {
              appendChild(parent, stateNode);
            }
          }
        } else if (node.tag === HostPortal) {// If the insertion itself is a portal, then we don't want to traverse
          // down its children. Instead, we'll get insertions from each child in
          // the portal directly.
        } else if (node.child !== null) {
          node.child.return = node;
          node = node.child;
          continue;
        }
    
        if (node === finishedWork) {
          return;
        }
    
        while (node.sibling === null) {
          if (node.return === null || node.return === finishedWork) {
            return;
          }
    
          node = node.return;
        }
    
        node.sibling.return = node.return;
        node = node.sibling;
      }
    }
    
    function unmountHostComponents(finishedRoot, current$$1, renderPriorityLevel) {
      // We only have the top Fiber that was deleted but we need to recurse down its
      // children to find all the terminal nodes.
      var node = current$$1; // Each iteration, currentParent is populated with node's host parent if not
      // currentParentIsValid.
    
      var currentParentIsValid = false; // Note: these two variables *must* always be updated together.
    
      var currentParent;
      var currentParentIsContainer;
    
      while (true) {
        if (!currentParentIsValid) {
          var parent = node.return;
    
          findParent: while (true) {
            (function () {
              if (!(parent !== null)) {
                {
                  throw ReactError(Error("Expected to find a host parent. This error is likely caused by a bug in React. Please file an issue."));
                }
              }
            })();
    
            var parentStateNode = parent.stateNode;
    
            switch (parent.tag) {
              case HostComponent:
                currentParent = parentStateNode;
                currentParentIsContainer = false;
                break findParent;
    
              case HostRoot:
                currentParent = parentStateNode.containerInfo;
                currentParentIsContainer = true;
                break findParent;
    
              case HostPortal:
                currentParent = parentStateNode.containerInfo;
                currentParentIsContainer = true;
                break findParent;
    
              case FundamentalComponent:
                if (enableFundamentalAPI) {
                  currentParent = parentStateNode.instance;
                  currentParentIsContainer = false;
                }
    
            }
    
            parent = parent.return;
          }
    
          currentParentIsValid = true;
        }
    
        if (node.tag === HostComponent || node.tag === HostText) {
          commitNestedUnmounts(finishedRoot, node, renderPriorityLevel); // After all the children have unmounted, it is now safe to remove the
          // node from the tree.
    
          if (currentParentIsContainer) {
            removeChildFromContainer(currentParent, node.stateNode);
          } else {
            removeChild(currentParent, node.stateNode);
          } // Don't visit children because we already visited them.
    
        } else if (enableFundamentalAPI && node.tag === FundamentalComponent) {
          var fundamentalNode = node.stateNode.instance;
          commitNestedUnmounts(finishedRoot, node, renderPriorityLevel); // After all the children have unmounted, it is now safe to remove the
          // node from the tree.
    
          if (currentParentIsContainer) {
            removeChildFromContainer(currentParent, fundamentalNode);
          } else {
            removeChild(currentParent, fundamentalNode);
          }
        } else if (enableSuspenseServerRenderer && node.tag === DehydratedFragment) {
          if (enableSuspenseCallback) {
            var hydrationCallbacks = finishedRoot.hydrationCallbacks;
    
            if (hydrationCallbacks !== null) {
              var onDeleted = hydrationCallbacks.onDeleted;
    
              if (onDeleted) {
                onDeleted(node.stateNode);
              }
            }
          } // Delete the dehydrated suspense boundary and all of its content.
    
    
          if (currentParentIsContainer) {
            clearSuspenseBoundaryFromContainer(currentParent, node.stateNode);
          } else {
            clearSuspenseBoundary(currentParent, node.stateNode);
          }
        } else if (node.tag === HostPortal) {
          if (node.child !== null) {
            // When we go into a portal, it becomes the parent to remove from.
            // We will reassign it back when we pop the portal on the way up.
            currentParent = node.stateNode.containerInfo;
            currentParentIsContainer = true; // Visit children because portals might contain host components.
    
            node.child.return = node;
            node = node.child;
            continue;
          }
        } else {
          commitUnmount(finishedRoot, node, renderPriorityLevel); // Visit children because we may find more host components below.
    
          if (node.child !== null) {
            node.child.return = node;
            node = node.child;
            continue;
          }
        }
    
        if (node === current$$1) {
          return;
        }
    
        while (node.sibling === null) {
          if (node.return === null || node.return === current$$1) {
            return;
          }
    
          node = node.return;
    
          if (node.tag === HostPortal) {
            // When we go out of the portal, we need to restore the parent.
            // Since we don't keep a stack of them, we will search for it.
            currentParentIsValid = false;
          }
        }
    
        node.sibling.return = node.return;
        node = node.sibling;
      }
    }
    
    function commitDeletion(finishedRoot, current$$1, renderPriorityLevel) {
      if (supportsMutation) {
        // Recursively delete all host nodes from the parent.
        // Detach refs and call componentWillUnmount() on the whole subtree.
        unmountHostComponents(finishedRoot, current$$1, renderPriorityLevel);
      } else {
        // Detach refs and call componentWillUnmount() on the whole subtree.
        commitNestedUnmounts(finishedRoot, current$$1, renderPriorityLevel);
      }
    
      detachFiber(current$$1);
    }
    
    function commitWork(current$$1, finishedWork) {
      if (!supportsMutation) {
        switch (finishedWork.tag) {
          case FunctionComponent:
          case ForwardRef:
          case MemoComponent:
          case SimpleMemoComponent:
            {
              // Note: We currently never use MountMutation, but useLayout uses
              // UnmountMutation.
              commitHookEffectList(UnmountMutation, MountMutation, finishedWork);
              return;
            }
    
          case Profiler:
            {
              return;
            }
    
          case SuspenseComponent:
            {
              commitSuspenseComponent(finishedWork);
              attachSuspenseRetryListeners(finishedWork);
              return;
            }
    
          case SuspenseListComponent:
            {
              attachSuspenseRetryListeners(finishedWork);
              return;
            }
    
          case HostRoot:
            {
              if (supportsHydration) {
                var root = finishedWork.stateNode;
    
                if (root.hydrate) {
                  // We've just hydrated. No need to hydrate again.
                  root.hydrate = false;
                  commitHydratedContainer(root.containerInfo);
                }
              }
    
              break;
            }
        }
    
        commitContainer(finishedWork);
        return;
      }
    
      switch (finishedWork.tag) {
        case FunctionComponent:
        case ForwardRef:
        case MemoComponent:
        case SimpleMemoComponent:
          {
            // Note: We currently never use MountMutation, but useLayout uses
            // UnmountMutation.
            commitHookEffectList(UnmountMutation, MountMutation, finishedWork);
            return;
          }
    
        case ClassComponent:
          {
            return;
          }
    
        case HostComponent:
          {
            var instance = finishedWork.stateNode;
    
            if (instance != null) {
              // Commit the work prepared earlier.
              var newProps = finishedWork.memoizedProps; // For hydration we reuse the update path but we treat the oldProps
              // as the newProps. The updatePayload will contain the real change in
              // this case.
    
              var oldProps = current$$1 !== null ? current$$1.memoizedProps : newProps;
              var type = finishedWork.type; // TODO: Type the updateQueue to be specific to host components.
    
              var updatePayload = finishedWork.updateQueue;
              finishedWork.updateQueue = null;
    
              if (updatePayload !== null) {
                commitUpdate(instance, updatePayload, type, oldProps, newProps, finishedWork);
              }
    
              if (enableFlareAPI) {
                var prevListeners = oldProps.listeners;
                var nextListeners = newProps.listeners;
    
                if (prevListeners !== nextListeners) {
                  updateEventListeners(nextListeners, finishedWork, null);
                }
              }
            }
    
            return;
          }
    
        case HostText:
          {
            (function () {
              if (!(finishedWork.stateNode !== null)) {
                {
                  throw ReactError(Error("This should have a text node initialized. This error is likely caused by a bug in React. Please file an issue."));
                }
              }
            })();
    
            var textInstance = finishedWork.stateNode;
            var newText = finishedWork.memoizedProps; // For hydration we reuse the update path but we treat the oldProps
            // as the newProps. The updatePayload will contain the real change in
            // this case.
    
            var oldText = current$$1 !== null ? current$$1.memoizedProps : newText;
            commitTextUpdate(textInstance, oldText, newText);
            return;
          }
    
        case HostRoot:
          {
            if (supportsHydration) {
              var _root = finishedWork.stateNode;
    
              if (_root.hydrate) {
                // We've just hydrated. No need to hydrate again.
                _root.hydrate = false;
                commitHydratedContainer(_root.containerInfo);
              }
            }
    
            return;
          }
    
        case Profiler:
          {
            return;
          }
    
        case SuspenseComponent:
          {
            commitSuspenseComponent(finishedWork);
            attachSuspenseRetryListeners(finishedWork);
            return;
          }
    
        case SuspenseListComponent:
          {
            attachSuspenseRetryListeners(finishedWork);
            return;
          }
    
        case IncompleteClassComponent:
          {
            return;
          }
    
        case FundamentalComponent:
          {
            if (enableFundamentalAPI) {
              var fundamentalInstance = finishedWork.stateNode;
              updateFundamentalComponent(fundamentalInstance);
            }
    
            return;
          }
    
        case ScopeComponent:
          {
            if (enableScopeAPI) {
              var scopeInstance = finishedWork.stateNode;
              scopeInstance.fiber = finishedWork;
    
              if (enableFlareAPI) {
                var _newProps = finishedWork.memoizedProps;
    
                var _oldProps = current$$1 !== null ? current$$1.memoizedProps : _newProps;
    
                var _prevListeners = _oldProps.listeners;
                var _nextListeners = _newProps.listeners;
    
                if (_prevListeners !== _nextListeners) {
                  updateEventListeners(_nextListeners, finishedWork, null);
                }
              }
            }
    
            return;
          }
    
        default:
          {
            (function () {
              {
                {
                  throw ReactError(Error("This unit of work tag should not have side-effects. This error is likely caused by a bug in React. Please file an issue."));
                }
              }
            })();
          }
      }
    }
    
    function commitSuspenseComponent(finishedWork) {
      var newState = finishedWork.memoizedState;
      var newDidTimeout;
      var primaryChildParent = finishedWork;
    
      if (newState === null) {
        newDidTimeout = false;
      } else {
        newDidTimeout = true;
        primaryChildParent = finishedWork.child;
        markCommitTimeOfFallback();
      }
    
      if (supportsMutation && primaryChildParent !== null) {
        hideOrUnhideAllChildren(primaryChildParent, newDidTimeout);
      }
    
      if (enableSuspenseCallback && newState !== null) {
        var suspenseCallback = finishedWork.memoizedProps.suspenseCallback;
    
        if (typeof suspenseCallback === 'function') {
          var thenables = finishedWork.updateQueue;
    
          if (thenables !== null) {
            suspenseCallback(new Set(thenables));
          }
        } else {
          if (suspenseCallback !== undefined) {
            warning$1(false, 'Unexpected type for suspenseCallback.');
          }
        }
      }
    }
    
    function commitSuspenseHydrationCallbacks(finishedRoot, finishedWork) {
      if (!supportsHydration) {
        return;
      }
    
      var newState = finishedWork.memoizedState;
    
      if (newState === null) {
        var current$$1 = finishedWork.alternate;
    
        if (current$$1 !== null) {
          var prevState = current$$1.memoizedState;
    
          if (prevState !== null) {
            var suspenseInstance = prevState.dehydrated;
    
            if (suspenseInstance !== null) {
              commitHydratedSuspenseInstance(suspenseInstance);
    
              if (enableSuspenseCallback) {
                var hydrationCallbacks = finishedRoot.hydrationCallbacks;
    
                if (hydrationCallbacks !== null) {
                  var onHydrated = hydrationCallbacks.onHydrated;
    
                  if (onHydrated) {
                    onHydrated(suspenseInstance);
                  }
                }
              }
            }
          }
        }
      }
    }
    
    function attachSuspenseRetryListeners(finishedWork) {
      // If this boundary just timed out, then it will have a set of thenables.
      // For each thenable, attach a listener so that when it resolves, React
      // attempts to re-render the boundary in the primary (pre-timeout) state.
      var thenables = finishedWork.updateQueue;
    
      if (thenables !== null) {
        finishedWork.updateQueue = null;
        var retryCache = finishedWork.stateNode;
    
        if (retryCache === null) {
          retryCache = finishedWork.stateNode = new PossiblyWeakSet();
        }
    
        thenables.forEach(function (thenable) {
          // Memoize using the boundary fiber to prevent redundant listeners.
          var retry = resolveRetryThenable.bind(null, finishedWork, thenable);
    
          if (!retryCache.has(thenable)) {
            if (enableSchedulerTracing) {
              if (thenable.__reactDoNotTraceInteractions !== true) {
                retry = tracing.unstable_wrap(retry);
              }
            }
    
            retryCache.add(thenable);
            thenable.then(retry, retry);
          }
        });
      }
    }
    
    function commitResetTextContent(current$$1) {
      if (!supportsMutation) {
        return;
      }
    
      resetTextContent(current$$1.stateNode);
    }
    
    var PossiblyWeakMap$1 = typeof WeakMap === 'function' ? WeakMap : Map;
    
    function createRootErrorUpdate(fiber, errorInfo, expirationTime) {
      var update = createUpdate(expirationTime, null); // Unmount the root by rendering null.
    
      update.tag = CaptureUpdate; // Caution: React DevTools currently depends on this property
      // being called "element".
    
      update.payload = {
        element: null
      };
      var error = errorInfo.value;
    
      update.callback = function () {
        onUncaughtError(error);
        logError(fiber, errorInfo);
      };
    
      return update;
    }
    
    function createClassErrorUpdate(fiber, errorInfo, expirationTime) {
      var update = createUpdate(expirationTime, null);
      update.tag = CaptureUpdate;
      var getDerivedStateFromError = fiber.type.getDerivedStateFromError;
    
      if (typeof getDerivedStateFromError === 'function') {
        var error = errorInfo.value;
    
        update.payload = function () {
          logError(fiber, errorInfo);
          return getDerivedStateFromError(error);
        };
      }
    
      var inst = fiber.stateNode;
    
      if (inst !== null && typeof inst.componentDidCatch === 'function') {
        update.callback = function callback() {
          {
            markFailedErrorBoundaryForHotReloading(fiber);
          }
    
          if (typeof getDerivedStateFromError !== 'function') {
            // To preserve the preexisting retry behavior of error boundaries,
            // we keep track of which ones already failed during this batch.
            // This gets reset before we yield back to the browser.
            // TODO: Warn in strict mode if getDerivedStateFromError is
            // not defined.
            markLegacyErrorBoundaryAsFailed(this); // Only log here if componentDidCatch is the only error boundary method defined
    
            logError(fiber, errorInfo);
          }
    
          var error = errorInfo.value;
          var stack = errorInfo.stack;
          this.componentDidCatch(error, {
            componentStack: stack !== null ? stack : ''
          });
    
          {
            if (typeof getDerivedStateFromError !== 'function') {
              // If componentDidCatch is the only error boundary method defined,
              // then it needs to call setState to recover from errors.
              // If no state update is scheduled then the boundary will swallow the error.
              !(fiber.expirationTime === Sync) ? warningWithoutStack$1(false, '%s: Error boundaries should implement getDerivedStateFromError(). ' + 'In that method, return a state update to display an error message or fallback UI.', getComponentName(fiber.type) || 'Unknown') : void 0;
            }
          }
        };
      } else {
        update.callback = function () {
          markFailedErrorBoundaryForHotReloading(fiber);
        };
      }
    
      return update;
    }
    
    function attachPingListener(root, renderExpirationTime, thenable) {
      // Attach a listener to the promise to "ping" the root and retry. But
      // only if one does not already exist for the current render expiration
      // time (which acts like a "thread ID" here).
      var pingCache = root.pingCache;
      var threadIDs;
    
      if (pingCache === null) {
        pingCache = root.pingCache = new PossiblyWeakMap$1();
        threadIDs = new Set();
        pingCache.set(thenable, threadIDs);
      } else {
        threadIDs = pingCache.get(thenable);
    
        if (threadIDs === undefined) {
          threadIDs = new Set();
          pingCache.set(thenable, threadIDs);
        }
      }
    
      if (!threadIDs.has(renderExpirationTime)) {
        // Memoize using the thread ID to prevent redundant listeners.
        threadIDs.add(renderExpirationTime);
        var ping = pingSuspendedRoot.bind(null, root, thenable, renderExpirationTime);
        thenable.then(ping, ping);
      }
    }
    
    function throwException(root, returnFiber, sourceFiber, value, renderExpirationTime) {
      // The source fiber did not complete.
      sourceFiber.effectTag |= Incomplete; // Its effect list is no longer valid.
    
      sourceFiber.firstEffect = sourceFiber.lastEffect = null;
    
      if (value !== null && typeof value === 'object' && typeof value.then === 'function') {
        // This is a thenable.
        var thenable = value;
        checkForWrongSuspensePriorityInDEV(sourceFiber);
        var hasInvisibleParentBoundary = hasSuspenseContext(suspenseStackCursor.current, InvisibleParentSuspenseContext); // Schedule the nearest Suspense to re-render the timed out view.
    
        var _workInProgress = returnFiber;
    
        do {
          if (_workInProgress.tag === SuspenseComponent && shouldCaptureSuspense(_workInProgress, hasInvisibleParentBoundary)) {
            // Found the nearest boundary.
            // Stash the promise on the boundary fiber. If the boundary times out, we'll
            // attach another listener to flip the boundary back to its normal state.
            var thenables = _workInProgress.updateQueue;
    
            if (thenables === null) {
              var updateQueue = new Set();
              updateQueue.add(thenable);
              _workInProgress.updateQueue = updateQueue;
            } else {
              thenables.add(thenable);
            } // If the boundary is outside of batched mode, we should *not*
            // suspend the commit. Pretend as if the suspended component rendered
            // null and keep rendering. In the commit phase, we'll schedule a
            // subsequent synchronous update to re-render the Suspense.
            //
            // Note: It doesn't matter whether the component that suspended was
            // inside a batched mode tree. If the Suspense is outside of it, we
            // should *not* suspend the commit.
    
    
            if ((_workInProgress.mode & BatchedMode) === NoMode) {
              _workInProgress.effectTag |= DidCapture; // We're going to commit this fiber even though it didn't complete.
              // But we shouldn't call any lifecycle methods or callbacks. Remove
              // all lifecycle effect tags.
    
              sourceFiber.effectTag &= ~(LifecycleEffectMask | Incomplete);
    
              if (sourceFiber.tag === ClassComponent) {
                var currentSourceFiber = sourceFiber.alternate;
    
                if (currentSourceFiber === null) {
                  // This is a new mount. Change the tag so it's not mistaken for a
                  // completed class component. For example, we should not call
                  // componentWillUnmount if it is deleted.
                  sourceFiber.tag = IncompleteClassComponent;
                } else {
                  // When we try rendering again, we should not reuse the current fiber,
                  // since it's known to be in an inconsistent state. Use a force update to
                  // prevent a bail out.
                  var update = createUpdate(Sync, null);
                  update.tag = ForceUpdate;
                  enqueueUpdate(sourceFiber, update);
                }
              } // The source fiber did not complete. Mark it with Sync priority to
              // indicate that it still has pending work.
    
    
              sourceFiber.expirationTime = Sync; // Exit without suspending.
    
              return;
            } // Confirmed that the boundary is in a concurrent mode tree. Continue
            // with the normal suspend path.
            //
            // After this we'll use a set of heuristics to determine whether this
            // render pass will run to completion or restart or "suspend" the commit.
            // The actual logic for this is spread out in different places.
            //
            // This first principle is that if we're going to suspend when we complete
            // a root, then we should also restart if we get an update or ping that
            // might unsuspend it, and vice versa. The only reason to suspend is
            // because you think you might want to restart before committing. However,
            // it doesn't make sense to restart only while in the period we're suspended.
            //
            // Restarting too aggressively is also not good because it starves out any
            // intermediate loading state. So we use heuristics to determine when.
            // Suspense Heuristics
            //
            // If nothing threw a Promise or all the same fallbacks are already showing,
            // then don't suspend/restart.
            //
            // If this is an initial render of a new tree of Suspense boundaries and
            // those trigger a fallback, then don't suspend/restart. We want to ensure
            // that we can show the initial loading state as quickly as possible.
            //
            // If we hit a "Delayed" case, such as when we'd switch from content back into
            // a fallback, then we should always suspend/restart. SuspenseConfig applies to
            // this case. If none is defined, JND is used instead.
            //
            // If we're already showing a fallback and it gets "retried", allowing us to show
            // another level, but there's still an inner boundary that would show a fallback,
            // then we suspend/restart for 500ms since the last time we showed a fallback
            // anywhere in the tree. This effectively throttles progressive loading into a
            // consistent train of commits. This also gives us an opportunity to restart to
            // get to the completed state slightly earlier.
            //
            // If there's ambiguity due to batching it's resolved in preference of:
            // 1) "delayed", 2) "initial render", 3) "retry".
            //
            // We want to ensure that a "busy" state doesn't get force committed. We want to
            // ensure that new initial loading states can commit as soon as possible.
    
    
            attachPingListener(root, renderExpirationTime, thenable);
            _workInProgress.effectTag |= ShouldCapture;
            _workInProgress.expirationTime = renderExpirationTime;
            return;
          } // This boundary already captured during this render. Continue to the next
          // boundary.
    
    
          _workInProgress = _workInProgress.return;
        } while (_workInProgress !== null); // No boundary was found. Fallthrough to error mode.
        // TODO: Use invariant so the message is stripped in prod?
    
    
        value = new Error((getComponentName(sourceFiber.type) || 'A React component') + ' suspended while rendering, but no fallback UI was specified.\n' + '\n' + 'Add a <Suspense fallback=...> component higher in the tree to ' + 'provide a loading indicator or placeholder to display.' + getStackByFiberInDevAndProd(sourceFiber));
      } // We didn't find a boundary that could handle this type of exception. Start
      // over and traverse parent path again, this time treating the exception
      // as an error.
    
    
      renderDidError();
      value = createCapturedValue(value, sourceFiber);
      var workInProgress = returnFiber;
    
      do {
        switch (workInProgress.tag) {
          case HostRoot:
            {
              var _errorInfo = value;
              workInProgress.effectTag |= ShouldCapture;
              workInProgress.expirationTime = renderExpirationTime;
    
              var _update = createRootErrorUpdate(workInProgress, _errorInfo, renderExpirationTime);
    
              enqueueCapturedUpdate(workInProgress, _update);
              return;
            }
    
          case ClassComponent:
            // Capture and retry
            var errorInfo = value;
            var ctor = workInProgress.type;
            var instance = workInProgress.stateNode;
    
            if ((workInProgress.effectTag & DidCapture) === NoEffect && (typeof ctor.getDerivedStateFromError === 'function' || instance !== null && typeof instance.componentDidCatch === 'function' && !isAlreadyFailedLegacyErrorBoundary(instance))) {
              workInProgress.effectTag |= ShouldCapture;
              workInProgress.expirationTime = renderExpirationTime; // Schedule the error boundary to re-render using updated state
    
              var _update2 = createClassErrorUpdate(workInProgress, errorInfo, renderExpirationTime);
    
              enqueueCapturedUpdate(workInProgress, _update2);
              return;
            }
    
            break;
    
          default:
            break;
        }
    
        workInProgress = workInProgress.return;
      } while (workInProgress !== null);
    }
    
    var ceil = Math.ceil;
    var ReactCurrentDispatcher = ReactSharedInternals.ReactCurrentDispatcher;
    var ReactCurrentOwner$2 = ReactSharedInternals.ReactCurrentOwner;
    var IsSomeRendererActing = ReactSharedInternals.IsSomeRendererActing;
    var NoContext =
    /*                    */
    0;
    var BatchedContext =
    /*               */
    1;
    var EventContext =
    /*                 */
    2;
    var DiscreteEventContext =
    /*         */
    4;
    var LegacyUnbatchedContext =
    /*       */
    8;
    var RenderContext =
    /*                */
    16;
    var CommitContext =
    /*                */
    32;
    var RootIncomplete = 0;
    var RootFatalErrored = 1;
    var RootErrored = 2;
    var RootSuspended = 3;
    var RootSuspendedWithDelay = 4;
    var RootCompleted = 5;
    var RootLocked = 6;
    // Describes where we are in the React execution stack
    var executionContext = NoContext; // The root we're working on
    
    var workInProgressRoot = null; // The fiber we're working on
    
    var workInProgress = null; // The expiration time we're rendering
    
    var renderExpirationTime = NoWork; // Whether to root completed, errored, suspended, etc.
    
    var workInProgressRootExitStatus = RootIncomplete; // A fatal error, if one is thrown
    
    var workInProgressRootFatalError = null; // Most recent event time among processed updates during this render.
    // This is conceptually a time stamp but expressed in terms of an ExpirationTime
    // because we deal mostly with expiration times in the hot path, so this avoids
    // the conversion happening in the hot path.
    
    var workInProgressRootLatestProcessedExpirationTime = Sync;
    var workInProgressRootLatestSuspenseTimeout = Sync;
    var workInProgressRootCanSuspendUsingConfig = null; // The work left over by components that were visited during this render. Only
    // includes unprocessed updates, not work in bailed out children.
    
    var workInProgressRootNextUnprocessedUpdateTime = NoWork; // If we're pinged while rendering we don't always restart immediately.
    // This flag determines if it might be worthwhile to restart if an opportunity
    // happens latere.
    
    var workInProgressRootHasPendingPing = false; // The most recent time we committed a fallback. This lets us ensure a train
    // model where we don't commit new loading states in too quick succession.
    
    var globalMostRecentFallbackTime = 0;
    var FALLBACK_THROTTLE_MS = 500;
    var nextEffect = null;
    var hasUncaughtError = false;
    var firstUncaughtError = null;
    var legacyErrorBoundariesThatAlreadyFailed = null;
    var rootDoesHavePassiveEffects = false;
    var rootWithPendingPassiveEffects = null;
    var pendingPassiveEffectsRenderPriority = NoPriority;
    var pendingPassiveEffectsExpirationTime = NoWork;
    var rootsWithPendingDiscreteUpdates = null; // Use these to prevent an infinite loop of nested updates
    
    var NESTED_UPDATE_LIMIT = 50;
    var nestedUpdateCount = 0;
    var rootWithNestedUpdates = null;
    var NESTED_PASSIVE_UPDATE_LIMIT = 50;
    var nestedPassiveUpdateCount = 0;
    var interruptedBy = null; // Marks the need to reschedule pending interactions at these expiration times
    // during the commit phase. This enables them to be traced across components
    // that spawn new work during render. E.g. hidden boundaries, suspended SSR
    // hydration or SuspenseList.
    
    var spawnedWorkDuringRender = null; // Expiration times are computed by adding to the current time (the start
    // time). However, if two updates are scheduled within the same event, we
    // should treat their start times as simultaneous, even if the actual clock
    // time has advanced between the first and second call.
    // In other words, because expiration times determine how updates are batched,
    // we want all updates of like priority that occur within the same event to
    // receive the same expiration time. Otherwise we get tearing.
    
    var currentEventTime = NoWork;
    function requestCurrentTime() {
      if ((executionContext & (RenderContext | CommitContext)) !== NoContext) {
        // We're inside React, so it's fine to read the actual time.
        return msToExpirationTime(now());
      } // We're not inside React, so we may be in the middle of a browser event.
    
    
      if (currentEventTime !== NoWork) {
        // Use the same start time for all updates until we enter React again.
        return currentEventTime;
      } // This is the first update since React yielded. Compute a new start time.
    
    
      currentEventTime = msToExpirationTime(now());
      return currentEventTime;
    }
    function computeExpirationForFiber(currentTime, fiber, suspenseConfig) {
      var mode = fiber.mode;
    
      if ((mode & BatchedMode) === NoMode) {
        return Sync;
      }
    
      var priorityLevel = getCurrentPriorityLevel();
    
      if ((mode & ConcurrentMode) === NoMode) {
        return priorityLevel === ImmediatePriority ? Sync : Batched;
      }
    
      if ((executionContext & RenderContext) !== NoContext) {
        // Use whatever time we're already rendering
        // TODO: Should there be a way to opt out, like with `runWithPriority`?
        return renderExpirationTime;
      }
    
      var expirationTime;
    
      if (suspenseConfig !== null) {
        // Compute an expiration time based on the Suspense timeout.
        expirationTime = computeSuspenseExpiration(currentTime, suspenseConfig.timeoutMs | 0 || LOW_PRIORITY_EXPIRATION);
      } else {
        // Compute an expiration time based on the Scheduler priority.
        switch (priorityLevel) {
          case ImmediatePriority:
            expirationTime = Sync;
            break;
    
          case UserBlockingPriority$2:
            // TODO: Rename this to computeUserBlockingExpiration
            expirationTime = computeInteractiveExpiration(currentTime);
            break;
    
          case NormalPriority:
          case LowPriority:
            // TODO: Handle LowPriority
            // TODO: Rename this to... something better.
            expirationTime = computeAsyncExpiration(currentTime);
            break;
    
          case IdlePriority:
            expirationTime = Idle;
            break;
    
          default:
            (function () {
              {
                {
                  throw ReactError(Error("Expected a valid priority level"));
                }
              }
            })();
    
        }
      } // If we're in the middle of rendering a tree, do not update at the same
      // expiration time that is already rendering.
      // TODO: We shouldn't have to do this if the update is on a different root.
      // Refactor computeExpirationForFiber + scheduleUpdate so we have access to
      // the root when we check for this condition.
    
    
      if (workInProgressRoot !== null && expirationTime === renderExpirationTime) {
        // This is a trick to move this update into a separate batch
        expirationTime -= 1;
      }
    
      return expirationTime;
    }
    var lastUniqueAsyncExpiration = NoWork;
    function computeUniqueAsyncExpiration() {
      var currentTime = requestCurrentTime();
      var result = computeAsyncExpiration(currentTime);
    
      if (result <= lastUniqueAsyncExpiration) {
        // Since we assume the current time monotonically increases, we only hit
        // this branch when computeUniqueAsyncExpiration is fired multiple times
        // within a 200ms window (or whatever the async bucket size is).
        result -= 1;
      }
    
      lastUniqueAsyncExpiration = result;
      return result;
    }
    function scheduleUpdateOnFiber(fiber, expirationTime) {
      checkForNestedUpdates();
      warnAboutInvalidUpdatesOnClassComponentsInDEV(fiber);
      var root = markUpdateTimeFromFiberToRoot(fiber, expirationTime);
    
      if (root === null) {
        warnAboutUpdateOnUnmountedFiberInDEV(fiber);
        return;
      }
    
      checkForInterruption(fiber, expirationTime);
      recordScheduleUpdate(); // TODO: computeExpirationForFiber also reads the priority. Pass the
      // priority as an argument to that function and this one.
    
      var priorityLevel = getCurrentPriorityLevel();
    
      if (expirationTime === Sync) {
        if ( // Check if we're inside unbatchedUpdates
        (executionContext & LegacyUnbatchedContext) !== NoContext && // Check if we're not already rendering
        (executionContext & (RenderContext | CommitContext)) === NoContext) {
          // Register pending interactions on the root to avoid losing traced interaction data.
          schedulePendingInteractions(root, expirationTime); // This is a legacy edge case. The initial mount of a ReactDOM.render-ed
          // root inside of batchedUpdates should be synchronous, but layout updates
          // should be deferred until the end of the batch.
    
          performSyncWorkOnRoot(root);
        } else {
          ensureRootIsScheduled(root);
          schedulePendingInteractions(root, expirationTime);
    
          if (executionContext === NoContext) {
            // Flush the synchronous work now, unless we're already working or inside
            // a batch. This is intentionally inside scheduleUpdateOnFiber instead of
            // scheduleCallbackForFiber to preserve the ability to schedule a callback
            // without immediately flushing it. We only do this for user-initiated
            // updates, to preserve historical behavior of sync mode.
            flushSyncCallbackQueue();
          }
        }
      } else {
        ensureRootIsScheduled(root);
        schedulePendingInteractions(root, expirationTime);
      }
    
      if ((executionContext & DiscreteEventContext) !== NoContext && ( // Only updates at user-blocking priority or greater are considered
      // discrete, even inside a discrete event.
      priorityLevel === UserBlockingPriority$2 || priorityLevel === ImmediatePriority)) {
        // This is the result of a discrete event. Track the lowest priority
        // discrete update per root so we can flush them early, if needed.
        if (rootsWithPendingDiscreteUpdates === null) {
          rootsWithPendingDiscreteUpdates = new Map([[root, expirationTime]]);
        } else {
          var lastDiscreteTime = rootsWithPendingDiscreteUpdates.get(root);
    
          if (lastDiscreteTime === undefined || lastDiscreteTime > expirationTime) {
            rootsWithPendingDiscreteUpdates.set(root, expirationTime);
          }
        }
      }
    }
    var scheduleWork = scheduleUpdateOnFiber; // This is split into a separate function so we can mark a fiber with pending
    // work without treating it as a typical update that originates from an event;
    // e.g. retrying a Suspense boundary isn't an update, but it does schedule work
    // on a fiber.
    
    function markUpdateTimeFromFiberToRoot(fiber, expirationTime) {
      // Update the source fiber's expiration time
      if (fiber.expirationTime < expirationTime) {
        fiber.expirationTime = expirationTime;
      }
    
      var alternate = fiber.alternate;
    
      if (alternate !== null && alternate.expirationTime < expirationTime) {
        alternate.expirationTime = expirationTime;
      } // Walk the parent path to the root and update the child expiration time.
    
    
      var node = fiber.return;
      var root = null;
    
      if (node === null && fiber.tag === HostRoot) {
        root = fiber.stateNode;
      } else {
        while (node !== null) {
          alternate = node.alternate;
    
          if (node.childExpirationTime < expirationTime) {
            node.childExpirationTime = expirationTime;
    
            if (alternate !== null && alternate.childExpirationTime < expirationTime) {
              alternate.childExpirationTime = expirationTime;
            }
          } else if (alternate !== null && alternate.childExpirationTime < expirationTime) {
            alternate.childExpirationTime = expirationTime;
          }
    
          if (node.return === null && node.tag === HostRoot) {
            root = node.stateNode;
            break;
          }
    
          node = node.return;
        }
      }
    
      if (root !== null) {
        if (workInProgressRoot === root) {
          // Received an update to a tree that's in the middle of rendering. Mark
          // that's unprocessed work on this root.
          markUnprocessedUpdateTime(expirationTime);
    
          if (workInProgressRootExitStatus === RootSuspendedWithDelay) {
            // The root already suspended with a delay, which means this render
            // definitely won't finish. Since we have a new update, let's mark it as
            // suspended now, right before marking the incoming update. This has the
            // effect of interrupting the current render and switching to the update.
            // TODO: This happens to work when receiving an update during the render
            // phase, because of the trick inside computeExpirationForFiber to
            // subtract 1 from `renderExpirationTime` to move it into a
            // separate bucket. But we should probably model it with an exception,
            // using the same mechanism we use to force hydration of a subtree.
            // TODO: This does not account for low pri updates that were already
            // scheduled before the root started rendering. Need to track the next
            // pending expiration time (perhaps by backtracking the return path) and
            // then trigger a restart in the `renderDidSuspendDelayIfPossible` path.
            markRootSuspendedAtTime(root, renderExpirationTime);
          }
        } // Mark that the root has a pending update.
    
    
        markRootUpdatedAtTime(root, expirationTime);
      }
    
      return root;
    }
    
    function getNextRootExpirationTimeToWorkOn(root) {
      // Determines the next expiration time that the root should render, taking
      // into account levels that may be suspended, or levels that may have
      // received a ping.
      var lastExpiredTime = root.lastExpiredTime;
    
      if (lastExpiredTime !== NoWork) {
        return lastExpiredTime;
      } // "Pending" refers to any update that hasn't committed yet, including if it
      // suspended. The "suspended" range is therefore a subset.
    
    
      var firstPendingTime = root.firstPendingTime;
    
      if (!isRootSuspendedAtTime(root, firstPendingTime)) {
        // The highest priority pending time is not suspended. Let's work on that.
        return firstPendingTime;
      } // If the first pending time is suspended, check if there's a lower priority
      // pending level that we know about. Or check if we received a ping. Work
      // on whichever is higher priority.
    
    
      var lastPingedTime = root.lastPingedTime;
      var nextKnownPendingLevel = root.nextKnownPendingLevel;
      return lastPingedTime > nextKnownPendingLevel ? lastPingedTime : nextKnownPendingLevel;
    } // Use this function to schedule a task for a root. There's only one task per
    // root; if a task was already scheduled, we'll check to make sure the
    // expiration time of the existing task is the same as the expiration time of
    // the next level that the root has work on. This function is called on every
    // update, and right before exiting a task.
    
    
    function ensureRootIsScheduled(root) {
      var lastExpiredTime = root.lastExpiredTime;
    
      if (lastExpiredTime !== NoWork) {
        // Special case: Expired work should flush synchronously.
        root.callbackExpirationTime = Sync;
        root.callbackPriority = ImmediatePriority;
        root.callbackNode = scheduleSyncCallback(performSyncWorkOnRoot.bind(null, root));
        return;
      }
    
      var expirationTime = getNextRootExpirationTimeToWorkOn(root);
      var existingCallbackNode = root.callbackNode;
    
      if (expirationTime === NoWork) {
        // There's nothing to work on.
        if (existingCallbackNode !== null) {
          root.callbackNode = null;
          root.callbackExpirationTime = NoWork;
          root.callbackPriority = NoPriority;
        }
    
        return;
      } // TODO: If this is an update, we already read the current time. Pass the
      // time as an argument.
    
    
      var currentTime = requestCurrentTime();
      var priorityLevel = inferPriorityFromExpirationTime(currentTime, expirationTime); // If there's an existing render task, confirm it has the correct priority and
      // expiration time. Otherwise, we'll cancel it and schedule a new one.
    
      if (existingCallbackNode !== null) {
        var existingCallbackPriority = root.callbackPriority;
        var existingCallbackExpirationTime = root.callbackExpirationTime;
    
        if ( // Callback must have the exact same expiration time.
        existingCallbackExpirationTime === expirationTime && // Callback must have greater or equal priority.
        existingCallbackPriority >= priorityLevel) {
          // Existing callback is sufficient.
          return;
        } // Need to schedule a new task.
        // TODO: Instead of scheduling a new task, we should be able to change the
        // priority of the existing one.
    
    
        cancelCallback(existingCallbackNode);
      }
    
      root.callbackExpirationTime = expirationTime;
      root.callbackPriority = priorityLevel;
      var callbackNode;
    
      if (expirationTime === Sync) {
        // Sync React callbacks are scheduled on a special internal queue
        callbackNode = scheduleSyncCallback(performSyncWorkOnRoot.bind(null, root));
      } else if (disableSchedulerTimeoutBasedOnReactExpirationTime) {
        callbackNode = scheduleCallback(priorityLevel, performConcurrentWorkOnRoot.bind(null, root));
      } else {
        callbackNode = scheduleCallback(priorityLevel, performConcurrentWorkOnRoot.bind(null, root), // Compute a task timeout based on the expiration time. This also affects
        // ordering because tasks are processed in timeout order.
        {
          timeout: expirationTimeToMs(expirationTime) - now()
        });
      }
    
      root.callbackNode = callbackNode;
    } // This is the entry point for every concurrent task, i.e. anything that
    // goes through Scheduler.
    
    
    function performConcurrentWorkOnRoot(root, didTimeout) {
      // Since we know we're in a React event, we can clear the current
      // event time. The next update will compute a new event time.
      currentEventTime = NoWork;
    
      if (didTimeout) {
        // The render task took too long to complete. Mark the current time as
        // expired to synchronously render all expired work in a single batch.
        var currentTime = requestCurrentTime();
        markRootExpiredAtTime(root, currentTime); // This will schedule a synchronous callback.
    
        ensureRootIsScheduled(root);
        return null;
      } // Determine the next expiration time to work on, using the fields stored
      // on the root.
    
    
      var expirationTime = getNextRootExpirationTimeToWorkOn(root);
    
      if (expirationTime !== NoWork) {
        var originalCallbackNode = root.callbackNode;
    
        (function () {
          if (!((executionContext & (RenderContext | CommitContext)) === NoContext)) {
            {
              throw ReactError(Error("Should not already be working."));
            }
          }
        })();
    
        flushPassiveEffects(); // If the root or expiration time have changed, throw out the existing stack
        // and prepare a fresh one. Otherwise we'll continue where we left off.
    
        if (root !== workInProgressRoot || expirationTime !== renderExpirationTime) {
          prepareFreshStack(root, expirationTime);
          startWorkOnPendingInteractions(root, expirationTime);
        } // If we have a work-in-progress fiber, it means there's still work to do
        // in this root.
    
    
        if (workInProgress !== null) {
          var prevExecutionContext = executionContext;
          executionContext |= RenderContext;
          var prevDispatcher = pushDispatcher(root);
          var prevInteractions = pushInteractions(root);
          startWorkLoopTimer(workInProgress);
    
          do {
            try {
              workLoopConcurrent();
              break;
            } catch (thrownValue) {
              handleError(root, thrownValue);
            }
          } while (true);
    
          resetContextDependencies();
          executionContext = prevExecutionContext;
          popDispatcher(prevDispatcher);
    
          if (enableSchedulerTracing) {
            popInteractions(prevInteractions);
          }
    
          if (workInProgressRootExitStatus === RootFatalErrored) {
            var fatalError = workInProgressRootFatalError;
            stopInterruptedWorkLoopTimer();
            prepareFreshStack(root, expirationTime);
            markRootSuspendedAtTime(root, expirationTime);
            ensureRootIsScheduled(root);
            throw fatalError;
          }
    
          if (workInProgress !== null) {
            // There's still work left over. Exit without committing.
            stopInterruptedWorkLoopTimer();
          } else {
            // We now have a consistent tree. The next step is either to commit it,
            // or, if something suspended, wait to commit it after a timeout.
            stopFinishedWorkLoopTimer();
            var finishedWork = root.finishedWork = root.current.alternate;
            root.finishedExpirationTime = expirationTime;
            resolveLocksOnRoot(root, expirationTime);
            finishConcurrentRender(root, finishedWork, workInProgressRootExitStatus, expirationTime);
          }
    
          ensureRootIsScheduled(root);
    
          if (root.callbackNode === originalCallbackNode) {
            // The task node scheduled for this root is the same one that's
            // currently executed. Need to return a continuation.
            return performConcurrentWorkOnRoot.bind(null, root);
          }
        }
      }
    
      return null;
    }
    
    function finishConcurrentRender(root, finishedWork, exitStatus, expirationTime) {
      // Set this to null to indicate there's no in-progress render.
      workInProgressRoot = null;
    
      switch (exitStatus) {
        case RootIncomplete:
        case RootFatalErrored:
          {
            (function () {
              {
                {
                  throw ReactError(Error("Root did not complete. This is a bug in React."));
                }
              }
            })();
          }
        // Flow knows about invariant, so it complains if I add a break
        // statement, but eslint doesn't know about invariant, so it complains
        // if I do. eslint-disable-next-line no-fallthrough
    
        case RootErrored:
          {
            if (expirationTime !== Idle) {
              // If this was an async render, the error may have happened due to
              // a mutation in a concurrent event. Try rendering one more time,
              // synchronously, to see if the error goes away. If there are
              // lower priority updates, let's include those, too, in case they
              // fix the inconsistency. Render at Idle to include all updates.
              markRootExpiredAtTime(root, Idle);
              break;
            } // Commit the root in its errored state.
    
    
            commitRoot(root);
            break;
          }
    
        case RootSuspended:
          {
            markRootSuspendedAtTime(root, expirationTime);
            var lastSuspendedTime = root.lastSuspendedTime;
    
            if (expirationTime === lastSuspendedTime) {
              root.nextKnownPendingLevel = getRemainingExpirationTime(finishedWork);
            }
    
            flushSuspensePriorityWarningInDEV(); // We have an acceptable loading state. We need to figure out if we
            // should immediately commit it or wait a bit.
            // If we have processed new updates during this render, we may now
            // have a new loading state ready. We want to ensure that we commit
            // that as soon as possible.
    
            var hasNotProcessedNewUpdates = workInProgressRootLatestProcessedExpirationTime === Sync;
    
            if (hasNotProcessedNewUpdates && // do not delay if we're inside an act() scope
            !( true && flushSuspenseFallbacksInTests && IsThisRendererActing.current)) {
              // If we have not processed any new updates during this pass, then
              // this is either a retry of an existing fallback state or a
              // hidden tree. Hidden trees shouldn't be batched with other work
              // and after that's fixed it can only be a retry. We're going to
              // throttle committing retries so that we don't show too many
              // loading states too quickly.
              var msUntilTimeout = globalMostRecentFallbackTime + FALLBACK_THROTTLE_MS - now(); // Don't bother with a very short suspense time.
    
              if (msUntilTimeout > 10) {
                if (workInProgressRootHasPendingPing) {
                  var lastPingedTime = root.lastPingedTime;
    
                  if (lastPingedTime === NoWork || lastPingedTime >= expirationTime) {
                    // This render was pinged but we didn't get to restart
                    // earlier so try restarting now instead.
                    root.lastPingedTime = expirationTime;
                    prepareFreshStack(root, expirationTime);
                    break;
                  }
                }
    
                var nextTime = getNextRootExpirationTimeToWorkOn(root);
    
                if (nextTime !== NoWork && nextTime !== expirationTime) {
                  // There's additional work on this root.
                  break;
                }
    
                if (lastSuspendedTime !== NoWork && lastSuspendedTime !== expirationTime) {
                  // We should prefer to render the fallback of at the last
                  // suspended level. Ping the last suspended level to try
                  // rendering it again.
                  root.lastPingedTime = lastSuspendedTime;
                  break;
                } // The render is suspended, it hasn't timed out, and there's no
                // lower priority work to do. Instead of committing the fallback
                // immediately, wait for more data to arrive.
    
    
                root.timeoutHandle = scheduleTimeout(commitRoot.bind(null, root), msUntilTimeout);
                break;
              }
            } // The work expired. Commit immediately.
    
    
            commitRoot(root);
            break;
          }
    
        case RootSuspendedWithDelay:
          {
            markRootSuspendedAtTime(root, expirationTime);
            var _lastSuspendedTime = root.lastSuspendedTime;
    
            if (expirationTime === _lastSuspendedTime) {
              root.nextKnownPendingLevel = getRemainingExpirationTime(finishedWork);
            }
    
            flushSuspensePriorityWarningInDEV();
    
            if ( // do not delay if we're inside an act() scope
            !( true && flushSuspenseFallbacksInTests && IsThisRendererActing.current)) {
              // We're suspended in a state that should be avoided. We'll try to
              // avoid committing it for as long as the timeouts let us.
              if (workInProgressRootHasPendingPing) {
                var _lastPingedTime = root.lastPingedTime;
    
                if (_lastPingedTime === NoWork || _lastPingedTime >= expirationTime) {
                  // This render was pinged but we didn't get to restart earlier
                  // so try restarting now instead.
                  root.lastPingedTime = expirationTime;
                  prepareFreshStack(root, expirationTime);
                  break;
                }
              }
    
              var _nextTime = getNextRootExpirationTimeToWorkOn(root);
    
              if (_nextTime !== NoWork && _nextTime !== expirationTime) {
                // There's additional work on this root.
                break;
              }
    
              if (_lastSuspendedTime !== NoWork && _lastSuspendedTime !== expirationTime) {
                // We should prefer to render the fallback of at the last
                // suspended level. Ping the last suspended level to try
                // rendering it again.
                root.lastPingedTime = _lastSuspendedTime;
                break;
              }
    
              var _msUntilTimeout;
    
              if (workInProgressRootLatestSuspenseTimeout !== Sync) {
                // We have processed a suspense config whose expiration time we
                // can use as the timeout.
                _msUntilTimeout = expirationTimeToMs(workInProgressRootLatestSuspenseTimeout) - now();
              } else if (workInProgressRootLatestProcessedExpirationTime === Sync) {
                // This should never normally happen because only new updates
                // cause delayed states, so we should have processed something.
                // However, this could also happen in an offscreen tree.
                _msUntilTimeout = 0;
              } else {
                // If we don't have a suspense config, we're going to use a
                // heuristic to determine how long we can suspend.
                var eventTimeMs = inferTimeFromExpirationTime(workInProgressRootLatestProcessedExpirationTime);
                var currentTimeMs = now();
                var timeUntilExpirationMs = expirationTimeToMs(expirationTime) - currentTimeMs;
                var timeElapsed = currentTimeMs - eventTimeMs;
    
                if (timeElapsed < 0) {
                  // We get this wrong some time since we estimate the time.
                  timeElapsed = 0;
                }
    
                _msUntilTimeout = jnd(timeElapsed) - timeElapsed; // Clamp the timeout to the expiration time. TODO: Once the
                // event time is exact instead of inferred from expiration time
                // we don't need this.
    
                if (timeUntilExpirationMs < _msUntilTimeout) {
                  _msUntilTimeout = timeUntilExpirationMs;
                }
              } // Don't bother with a very short suspense time.
    
    
              if (_msUntilTimeout > 10) {
                // The render is suspended, it hasn't timed out, and there's no
                // lower priority work to do. Instead of committing the fallback
                // immediately, wait for more data to arrive.
                root.timeoutHandle = scheduleTimeout(commitRoot.bind(null, root), _msUntilTimeout);
                break;
              }
            } // The work expired. Commit immediately.
    
    
            commitRoot(root);
            break;
          }
    
        case RootCompleted:
          {
            // The work completed. Ready to commit.
            if ( // do not delay if we're inside an act() scope
            !( true && flushSuspenseFallbacksInTests && IsThisRendererActing.current) && workInProgressRootLatestProcessedExpirationTime !== Sync && workInProgressRootCanSuspendUsingConfig !== null) {
              // If we have exceeded the minimum loading delay, which probably
              // means we have shown a spinner already, we might have to suspend
              // a bit longer to ensure that the spinner is shown for
              // enough time.
              var _msUntilTimeout2 = computeMsUntilSuspenseLoadingDelay(workInProgressRootLatestProcessedExpirationTime, expirationTime, workInProgressRootCanSuspendUsingConfig);
    
              if (_msUntilTimeout2 > 10) {
                markRootSuspendedAtTime(root, expirationTime);
                root.timeoutHandle = scheduleTimeout(commitRoot.bind(null, root), _msUntilTimeout2);
                break;
              }
            }
    
            commitRoot(root);
            break;
          }
    
        case RootLocked:
          {
            // This root has a lock that prevents it from committing. Exit. If
            // we begin work on the root again, without any intervening updates,
            // it will finish without doing additional work.
            markRootSuspendedAtTime(root, expirationTime);
            break;
          }
    
        default:
          {
            (function () {
              {
                {
                  throw ReactError(Error("Unknown root exit status."));
                }
              }
            })();
          }
      }
    } // This is the entry point for synchronous tasks that don't go
    // through Scheduler
    
    
    function performSyncWorkOnRoot(root) {
      // Check if there's expired work on this root. Otherwise, render at Sync.
      var lastExpiredTime = root.lastExpiredTime;
      var expirationTime = lastExpiredTime !== NoWork ? lastExpiredTime : Sync;
    
      if (root.finishedExpirationTime === expirationTime) {
        // There's already a pending commit at this expiration time.
        // TODO: This is poorly factored. This case only exists for the
        // batch.commit() API.
        commitRoot(root);
      } else {
        (function () {
          if (!((executionContext & (RenderContext | CommitContext)) === NoContext)) {
            {
              throw ReactError(Error("Should not already be working."));
            }
          }
        })();
    
        flushPassiveEffects(); // If the root or expiration time have changed, throw out the existing stack
        // and prepare a fresh one. Otherwise we'll continue where we left off.
    
        if (root !== workInProgressRoot || expirationTime !== renderExpirationTime) {
          prepareFreshStack(root, expirationTime);
          startWorkOnPendingInteractions(root, expirationTime);
        } // If we have a work-in-progress fiber, it means there's still work to do
        // in this root.
    
    
        if (workInProgress !== null) {
          var prevExecutionContext = executionContext;
          executionContext |= RenderContext;
          var prevDispatcher = pushDispatcher(root);
          var prevInteractions = pushInteractions(root);
          startWorkLoopTimer(workInProgress);
    
          do {
            try {
              workLoopSync();
              break;
            } catch (thrownValue) {
              handleError(root, thrownValue);
            }
          } while (true);
    
          resetContextDependencies();
          executionContext = prevExecutionContext;
          popDispatcher(prevDispatcher);
    
          if (enableSchedulerTracing) {
            popInteractions(prevInteractions);
          }
    
          if (workInProgressRootExitStatus === RootFatalErrored) {
            var fatalError = workInProgressRootFatalError;
            stopInterruptedWorkLoopTimer();
            prepareFreshStack(root, expirationTime);
            markRootSuspendedAtTime(root, expirationTime);
            ensureRootIsScheduled(root);
            throw fatalError;
          }
    
          if (workInProgress !== null) {
            // This is a sync render, so we should have finished the whole tree.
            (function () {
              {
                {
                  throw ReactError(Error("Cannot commit an incomplete root. This error is likely caused by a bug in React. Please file an issue."));
                }
              }
            })();
          } else {
            // We now have a consistent tree. Because this is a sync render, we
            // will commit it even if something suspended. The only exception is
            // if the root is locked (using the unstable_createBatch API).
            stopFinishedWorkLoopTimer();
            root.finishedWork = root.current.alternate;
            root.finishedExpirationTime = expirationTime;
            resolveLocksOnRoot(root, expirationTime);
            finishSyncRender(root, workInProgressRootExitStatus, expirationTime);
          } // Before exiting, make sure there's a callback scheduled for the next
          // pending level.
    
    
          ensureRootIsScheduled(root);
        }
      }
    
      return null;
    }
    
    function finishSyncRender(root, exitStatus, expirationTime) {
      if (exitStatus === RootLocked) {
        // This root has a lock that prevents it from committing. Exit. If we
        // begin work on the root again, without any intervening updates, it
        // will finish without doing additional work.
        markRootSuspendedAtTime(root, expirationTime);
      } else {
        // Set this to null to indicate there's no in-progress render.
        workInProgressRoot = null;
    
        {
          if (exitStatus === RootSuspended || exitStatus === RootSuspendedWithDelay) {
            flushSuspensePriorityWarningInDEV();
          }
        }
    
        commitRoot(root);
      }
    }
    
    function flushRoot(root, expirationTime) {
      if ((executionContext & (RenderContext | CommitContext)) !== NoContext) {
        (function () {
          {
            {
              throw ReactError(Error("work.commit(): Cannot commit while already rendering. This likely means you attempted to commit from inside a lifecycle method."));
            }
          }
        })();
      }
    
      markRootExpiredAtTime(root, expirationTime);
      ensureRootIsScheduled(root);
      flushSyncCallbackQueue();
    }
    function flushDiscreteUpdates() {
      // TODO: Should be able to flush inside batchedUpdates, but not inside `act`.
      // However, `act` uses `batchedUpdates`, so there's no way to distinguish
      // those two cases. Need to fix this before exposing flushDiscreteUpdates
      // as a public API.
      if ((executionContext & (BatchedContext | RenderContext | CommitContext)) !== NoContext) {
        if ( true && (executionContext & RenderContext) !== NoContext) {
          warning$1(false, 'unstable_flushDiscreteUpdates: Cannot flush updates when React is ' + 'already rendering.');
        } // We're already rendering, so we can't synchronously flush pending work.
        // This is probably a nested event dispatch triggered by a lifecycle/effect,
        // like `el.focus()`. Exit.
    
    
        return;
      }
    
      flushPendingDiscreteUpdates(); // If the discrete updates scheduled passive effects, flush them now so that
      // they fire before the next serial event.
    
      flushPassiveEffects();
    }
    
    function resolveLocksOnRoot(root, expirationTime) {
      var firstBatch = root.firstBatch;
    
      if (firstBatch !== null && firstBatch._defer && firstBatch._expirationTime >= expirationTime) {
        scheduleCallback(NormalPriority, function () {
          firstBatch._onComplete();
    
          return null;
        });
        workInProgressRootExitStatus = RootLocked;
      }
    }
    
    
    
    
    function flushPendingDiscreteUpdates() {
      if (rootsWithPendingDiscreteUpdates !== null) {
        // For each root with pending discrete updates, schedule a callback to
        // immediately flush them.
        var roots = rootsWithPendingDiscreteUpdates;
        rootsWithPendingDiscreteUpdates = null;
        roots.forEach(function (expirationTime, root) {
          markRootExpiredAtTime(root, expirationTime);
          ensureRootIsScheduled(root);
        }); // Now flush the immediate queue.
    
        flushSyncCallbackQueue();
      }
    }
    
    function batchedUpdates$1(fn, a) {
      var prevExecutionContext = executionContext;
      executionContext |= BatchedContext;
    
      try {
        return fn(a);
      } finally {
        executionContext = prevExecutionContext;
    
        if (executionContext === NoContext) {
          // Flush the immediate callbacks that were scheduled during this batch
          flushSyncCallbackQueue();
        }
      }
    }
    function batchedEventUpdates$1(fn, a) {
      var prevExecutionContext = executionContext;
      executionContext |= EventContext;
    
      try {
        return fn(a);
      } finally {
        executionContext = prevExecutionContext;
    
        if (executionContext === NoContext) {
          // Flush the immediate callbacks that were scheduled during this batch
          flushSyncCallbackQueue();
        }
      }
    }
    function discreteUpdates$1(fn, a, b, c) {
      var prevExecutionContext = executionContext;
      executionContext |= DiscreteEventContext;
    
      try {
        // Should this
        return runWithPriority$2(UserBlockingPriority$2, fn.bind(null, a, b, c));
      } finally {
        executionContext = prevExecutionContext;
    
        if (executionContext === NoContext) {
          // Flush the immediate callbacks that were scheduled during this batch
          flushSyncCallbackQueue();
        }
      }
    }
    function unbatchedUpdates(fn, a) {
      var prevExecutionContext = executionContext;
      executionContext &= ~BatchedContext;
      executionContext |= LegacyUnbatchedContext;
    
      try {
        return fn(a);
      } finally {
        executionContext = prevExecutionContext;
    
        if (executionContext === NoContext) {
          // Flush the immediate callbacks that were scheduled during this batch
          flushSyncCallbackQueue();
        }
      }
    }
    function flushSync(fn, a) {
      if ((executionContext & (RenderContext | CommitContext)) !== NoContext) {
        (function () {
          {
            {
              throw ReactError(Error("flushSync was called from inside a lifecycle method. It cannot be called when React is already rendering."));
            }
          }
        })();
      }
    
      var prevExecutionContext = executionContext;
      executionContext |= BatchedContext;
    
      try {
        return runWithPriority$2(ImmediatePriority, fn.bind(null, a));
      } finally {
        executionContext = prevExecutionContext; // Flush the immediate callbacks that were scheduled during this batch.
        // Note that this will happen even if batchedUpdates is higher up
        // the stack.
    
        flushSyncCallbackQueue();
      }
    }
    function flushControlled(fn) {
      var prevExecutionContext = executionContext;
      executionContext |= BatchedContext;
    
      try {
        runWithPriority$2(ImmediatePriority, fn);
      } finally {
        executionContext = prevExecutionContext;
    
        if (executionContext === NoContext) {
          // Flush the immediate callbacks that were scheduled during this batch
          flushSyncCallbackQueue();
        }
      }
    }
    
    function prepareFreshStack(root, expirationTime) {
      root.finishedWork = null;
      root.finishedExpirationTime = NoWork;
      var timeoutHandle = root.timeoutHandle;
    
      if (timeoutHandle !== noTimeout) {
        // The root previous suspended and scheduled a timeout to commit a fallback
        // state. Now that we have additional work, cancel the timeout.
        root.timeoutHandle = noTimeout; // $FlowFixMe Complains noTimeout is not a TimeoutID, despite the check above
    
        cancelTimeout(timeoutHandle);
      }
    
      if (workInProgress !== null) {
        var interruptedWork = workInProgress.return;
    
        while (interruptedWork !== null) {
          unwindInterruptedWork(interruptedWork);
          interruptedWork = interruptedWork.return;
        }
      }
    
      workInProgressRoot = root;
      workInProgress = createWorkInProgress(root.current, null, expirationTime);
      renderExpirationTime = expirationTime;
      workInProgressRootExitStatus = RootIncomplete;
      workInProgressRootFatalError = null;
      workInProgressRootLatestProcessedExpirationTime = Sync;
      workInProgressRootLatestSuspenseTimeout = Sync;
      workInProgressRootCanSuspendUsingConfig = null;
      workInProgressRootNextUnprocessedUpdateTime = NoWork;
      workInProgressRootHasPendingPing = false;
    
      if (enableSchedulerTracing) {
        spawnedWorkDuringRender = null;
      }
    
      {
        ReactStrictModeWarnings.discardPendingWarnings();
        componentsThatTriggeredHighPriSuspend = null;
      }
    }
    
    function handleError(root, thrownValue) {
      do {
        try {
          // Reset module-level state that was set during the render phase.
          resetContextDependencies();
          resetHooks();
    
          if (workInProgress === null || workInProgress.return === null) {
            // Expected to be working on a non-root fiber. This is a fatal error
            // because there's no ancestor that can handle it; the root is
            // supposed to capture all errors that weren't caught by an error
            // boundary.
            workInProgressRootExitStatus = RootFatalErrored;
            workInProgressRootFatalError = thrownValue;
            return null;
          }
    
          if (enableProfilerTimer && workInProgress.mode & ProfileMode) {
            // Record the time spent rendering before an error was thrown. This
            // avoids inaccurate Profiler durations in the case of a
            // suspended render.
            stopProfilerTimerIfRunningAndRecordDelta(workInProgress, true);
          }
    
          throwException(root, workInProgress.return, workInProgress, thrownValue, renderExpirationTime);
          workInProgress = completeUnitOfWork(workInProgress);
        } catch (yetAnotherThrownValue) {
          // Something in the return path also threw.
          thrownValue = yetAnotherThrownValue;
          continue;
        } // Return to the normal work loop.
    
    
        return;
      } while (true);
    }
    
    function pushDispatcher(root) {
      var prevDispatcher = ReactCurrentDispatcher.current;
      ReactCurrentDispatcher.current = ContextOnlyDispatcher;
    
      if (prevDispatcher === null) {
        // The React isomorphic package does not include a default dispatcher.
        // Instead the first renderer will lazily attach one, in order to give
        // nicer error messages.
        return ContextOnlyDispatcher;
      } else {
        return prevDispatcher;
      }
    }
    
    function popDispatcher(prevDispatcher) {
      ReactCurrentDispatcher.current = prevDispatcher;
    }
    
    function pushInteractions(root) {
      if (enableSchedulerTracing) {
        var prevInteractions = tracing.__interactionsRef.current;
        tracing.__interactionsRef.current = root.memoizedInteractions;
        return prevInteractions;
      }
    
      return null;
    }
    
    function popInteractions(prevInteractions) {
      if (enableSchedulerTracing) {
        tracing.__interactionsRef.current = prevInteractions;
      }
    }
    
    function markCommitTimeOfFallback() {
      globalMostRecentFallbackTime = now();
    }
    function markRenderEventTimeAndConfig(expirationTime, suspenseConfig) {
      if (expirationTime < workInProgressRootLatestProcessedExpirationTime && expirationTime > Idle) {
        workInProgressRootLatestProcessedExpirationTime = expirationTime;
      }
    
      if (suspenseConfig !== null) {
        if (expirationTime < workInProgressRootLatestSuspenseTimeout && expirationTime > Idle) {
          workInProgressRootLatestSuspenseTimeout = expirationTime; // Most of the time we only have one config and getting wrong is not bad.
    
          workInProgressRootCanSuspendUsingConfig = suspenseConfig;
        }
      }
    }
    function markUnprocessedUpdateTime(expirationTime) {
      if (expirationTime > workInProgressRootNextUnprocessedUpdateTime) {
        workInProgressRootNextUnprocessedUpdateTime = expirationTime;
      }
    }
    function renderDidSuspend() {
      if (workInProgressRootExitStatus === RootIncomplete) {
        workInProgressRootExitStatus = RootSuspended;
      }
    }
    function renderDidSuspendDelayIfPossible() {
      if (workInProgressRootExitStatus === RootIncomplete || workInProgressRootExitStatus === RootSuspended) {
        workInProgressRootExitStatus = RootSuspendedWithDelay;
      } // Check if there's a lower priority update somewhere else in the tree.
    
    
      if (workInProgressRootNextUnprocessedUpdateTime !== NoWork && workInProgressRoot !== null) {
        // Mark the current render as suspended, and then mark that there's a
        // pending update.
        // TODO: This should immediately interrupt the current render, instead
        // of waiting until the next time we yield.
        markRootSuspendedAtTime(workInProgressRoot, renderExpirationTime);
        markRootUpdatedAtTime(workInProgressRoot, workInProgressRootNextUnprocessedUpdateTime);
      }
    }
    function renderDidError() {
      if (workInProgressRootExitStatus !== RootCompleted) {
        workInProgressRootExitStatus = RootErrored;
      }
    } // Called during render to determine if anything has suspended.
    // Returns false if we're not sure.
    
    function renderHasNotSuspendedYet() {
      // If something errored or completed, we can't really be sure,
      // so those are false.
      return workInProgressRootExitStatus === RootIncomplete;
    }
    
    function inferTimeFromExpirationTime(expirationTime) {
      // We don't know exactly when the update was scheduled, but we can infer an
      // approximate start time from the expiration time.
      var earliestExpirationTimeMs = expirationTimeToMs(expirationTime);
      return earliestExpirationTimeMs - LOW_PRIORITY_EXPIRATION;
    }
    
    function inferTimeFromExpirationTimeWithSuspenseConfig(expirationTime, suspenseConfig) {
      // We don't know exactly when the update was scheduled, but we can infer an
      // approximate start time from the expiration time by subtracting the timeout
      // that was added to the event time.
      var earliestExpirationTimeMs = expirationTimeToMs(expirationTime);
      return earliestExpirationTimeMs - (suspenseConfig.timeoutMs | 0 || LOW_PRIORITY_EXPIRATION);
    } // The work loop is an extremely hot path. Tell Closure not to inline it.
    
    /** @noinline */
    
    
    function workLoopSync() {
      // Already timed out, so perform work without checking if we need to yield.
      while (workInProgress !== null) {
        workInProgress = performUnitOfWork(workInProgress);
      }
    }
    /** @noinline */
    
    
    function workLoopConcurrent() {
      // Perform work until Scheduler asks us to yield
      while (workInProgress !== null && !shouldYield()) {
        workInProgress = performUnitOfWork(workInProgress);
      }
    }
    
    function performUnitOfWork(unitOfWork) {
      // The current, flushed, state of this fiber is the alternate. Ideally
      // nothing should rely on this, but relying on it here means that we don't
      // need an additional field on the work in progress.
      var current$$1 = unitOfWork.alternate;
      startWorkTimer(unitOfWork);
      setCurrentFiber(unitOfWork);
      var next;
    
      if (enableProfilerTimer && (unitOfWork.mode & ProfileMode) !== NoMode) {
        startProfilerTimer(unitOfWork);
        next = beginWork$$1(current$$1, unitOfWork, renderExpirationTime);
        stopProfilerTimerIfRunningAndRecordDelta(unitOfWork, true);
      } else {
        next = beginWork$$1(current$$1, unitOfWork, renderExpirationTime);
      }
    
      resetCurrentFiber();
      unitOfWork.memoizedProps = unitOfWork.pendingProps;
    
      if (next === null) {
        // If this doesn't spawn new work, complete the current work.
        next = completeUnitOfWork(unitOfWork);
      }
    
      ReactCurrentOwner$2.current = null;
      return next;
    }
    
    function completeUnitOfWork(unitOfWork) {
      // Attempt to complete the current unit of work, then move to the next
      // sibling. If there are no more siblings, return to the parent fiber.
      workInProgress = unitOfWork;
    
      do {
        // The current, flushed, state of this fiber is the alternate. Ideally
        // nothing should rely on this, but relying on it here means that we don't
        // need an additional field on the work in progress.
        var current$$1 = workInProgress.alternate;
        var returnFiber = workInProgress.return; // Check if the work completed or if something threw.
    
        if ((workInProgress.effectTag & Incomplete) === NoEffect) {
          setCurrentFiber(workInProgress);
          var next = void 0;
    
          if (!enableProfilerTimer || (workInProgress.mode & ProfileMode) === NoMode) {
            next = completeWork(current$$1, workInProgress, renderExpirationTime);
          } else {
            startProfilerTimer(workInProgress);
            next = completeWork(current$$1, workInProgress, renderExpirationTime); // Update render duration assuming we didn't error.
    
            stopProfilerTimerIfRunningAndRecordDelta(workInProgress, false);
          }
    
          stopWorkTimer(workInProgress);
          resetCurrentFiber();
          resetChildExpirationTime(workInProgress);
    
          if (next !== null) {
            // Completing this fiber spawned new work. Work on that next.
            return next;
          }
    
          if (returnFiber !== null && // Do not append effects to parents if a sibling failed to complete
          (returnFiber.effectTag & Incomplete) === NoEffect) {
            // Append all the effects of the subtree and this fiber onto the effect
            // list of the parent. The completion order of the children affects the
            // side-effect order.
            if (returnFiber.firstEffect === null) {
              returnFiber.firstEffect = workInProgress.firstEffect;
            }
    
            if (workInProgress.lastEffect !== null) {
              if (returnFiber.lastEffect !== null) {
                returnFiber.lastEffect.nextEffect = workInProgress.firstEffect;
              }
    
              returnFiber.lastEffect = workInProgress.lastEffect;
            } // If this fiber had side-effects, we append it AFTER the children's
            // side-effects. We can perform certain side-effects earlier if needed,
            // by doing multiple passes over the effect list. We don't want to
            // schedule our own side-effect on our own list because if end up
            // reusing children we'll schedule this effect onto itself since we're
            // at the end.
    
    
            var effectTag = workInProgress.effectTag; // Skip both NoWork and PerformedWork tags when creating the effect
            // list. PerformedWork effect is read by React DevTools but shouldn't be
            // committed.
    
            if (effectTag > PerformedWork) {
              if (returnFiber.lastEffect !== null) {
                returnFiber.lastEffect.nextEffect = workInProgress;
              } else {
                returnFiber.firstEffect = workInProgress;
              }
    
              returnFiber.lastEffect = workInProgress;
            }
          }
        } else {
          // This fiber did not complete because something threw. Pop values off
          // the stack without entering the complete phase. If this is a boundary,
          // capture values if possible.
          var _next = unwindWork(workInProgress, renderExpirationTime); // Because this fiber did not complete, don't reset its expiration time.
    
    
          if (enableProfilerTimer && (workInProgress.mode & ProfileMode) !== NoMode) {
            // Record the render duration for the fiber that errored.
            stopProfilerTimerIfRunningAndRecordDelta(workInProgress, false); // Include the time spent working on failed children before continuing.
    
            var actualDuration = workInProgress.actualDuration;
            var child = workInProgress.child;
    
            while (child !== null) {
              actualDuration += child.actualDuration;
              child = child.sibling;
            }
    
            workInProgress.actualDuration = actualDuration;
          }
    
          if (_next !== null) {
            // If completing this work spawned new work, do that next. We'll come
            // back here again.
            // Since we're restarting, remove anything that is not a host effect
            // from the effect tag.
            // TODO: The name stopFailedWorkTimer is misleading because Suspense
            // also captures and restarts.
            stopFailedWorkTimer(workInProgress);
            _next.effectTag &= HostEffectMask;
            return _next;
          }
    
          stopWorkTimer(workInProgress);
    
          if (returnFiber !== null) {
            // Mark the parent fiber as incomplete and clear its effect list.
            returnFiber.firstEffect = returnFiber.lastEffect = null;
            returnFiber.effectTag |= Incomplete;
          }
        }
    
        var siblingFiber = workInProgress.sibling;
    
        if (siblingFiber !== null) {
          // If there is more work to do in this returnFiber, do that next.
          return siblingFiber;
        } // Otherwise, return to the parent
    
    
        workInProgress = returnFiber;
      } while (workInProgress !== null); // We've reached the root.
    
    
      if (workInProgressRootExitStatus === RootIncomplete) {
        workInProgressRootExitStatus = RootCompleted;
      }
    
      return null;
    }
    
    function getRemainingExpirationTime(fiber) {
      var updateExpirationTime = fiber.expirationTime;
      var childExpirationTime = fiber.childExpirationTime;
      return updateExpirationTime > childExpirationTime ? updateExpirationTime : childExpirationTime;
    }
    
    function resetChildExpirationTime(completedWork) {
      if (renderExpirationTime !== Never && completedWork.childExpirationTime === Never) {
        // The children of this component are hidden. Don't bubble their
        // expiration times.
        return;
      }
    
      var newChildExpirationTime = NoWork; // Bubble up the earliest expiration time.
    
      if (enableProfilerTimer && (completedWork.mode & ProfileMode) !== NoMode) {
        // In profiling mode, resetChildExpirationTime is also used to reset
        // profiler durations.
        var actualDuration = completedWork.actualDuration;
        var treeBaseDuration = completedWork.selfBaseDuration; // When a fiber is cloned, its actualDuration is reset to 0. This value will
        // only be updated if work is done on the fiber (i.e. it doesn't bailout).
        // When work is done, it should bubble to the parent's actualDuration. If
        // the fiber has not been cloned though, (meaning no work was done), then
        // this value will reflect the amount of time spent working on a previous
        // render. In that case it should not bubble. We determine whether it was
        // cloned by comparing the child pointer.
    
        var shouldBubbleActualDurations = completedWork.alternate === null || completedWork.child !== completedWork.alternate.child;
        var child = completedWork.child;
    
        while (child !== null) {
          var childUpdateExpirationTime = child.expirationTime;
          var childChildExpirationTime = child.childExpirationTime;
    
          if (childUpdateExpirationTime > newChildExpirationTime) {
            newChildExpirationTime = childUpdateExpirationTime;
          }
    
          if (childChildExpirationTime > newChildExpirationTime) {
            newChildExpirationTime = childChildExpirationTime;
          }
    
          if (shouldBubbleActualDurations) {
            actualDuration += child.actualDuration;
          }
    
          treeBaseDuration += child.treeBaseDuration;
          child = child.sibling;
        }
    
        completedWork.actualDuration = actualDuration;
        completedWork.treeBaseDuration = treeBaseDuration;
      } else {
        var _child = completedWork.child;
    
        while (_child !== null) {
          var _childUpdateExpirationTime = _child.expirationTime;
          var _childChildExpirationTime = _child.childExpirationTime;
    
          if (_childUpdateExpirationTime > newChildExpirationTime) {
            newChildExpirationTime = _childUpdateExpirationTime;
          }
    
          if (_childChildExpirationTime > newChildExpirationTime) {
            newChildExpirationTime = _childChildExpirationTime;
          }
    
          _child = _child.sibling;
        }
      }
    
      completedWork.childExpirationTime = newChildExpirationTime;
    }
    
    function commitRoot(root) {
      var renderPriorityLevel = getCurrentPriorityLevel();
      runWithPriority$2(ImmediatePriority, commitRootImpl.bind(null, root, renderPriorityLevel));
      return null;
    }
    
    function commitRootImpl(root, renderPriorityLevel) {
      flushPassiveEffects();
      flushRenderPhaseStrictModeWarningsInDEV();
    
      (function () {
        if (!((executionContext & (RenderContext | CommitContext)) === NoContext)) {
          {
            throw ReactError(Error("Should not already be working."));
          }
        }
      })();
    
      var finishedWork = root.finishedWork;
      var expirationTime = root.finishedExpirationTime;
    
      if (finishedWork === null) {
        return null;
      }
    
      root.finishedWork = null;
      root.finishedExpirationTime = NoWork;
    
      (function () {
        if (!(finishedWork !== root.current)) {
          {
            throw ReactError(Error("Cannot commit the same tree as before. This error is likely caused by a bug in React. Please file an issue."));
          }
        }
      })(); // commitRoot never returns a continuation; it always finishes synchronously.
      // So we can clear these now to allow a new callback to be scheduled.
    
    
      root.callbackNode = null;
      root.callbackExpirationTime = NoWork;
      root.callbackPriority = NoPriority;
      root.nextKnownPendingLevel = NoWork;
      startCommitTimer(); // Update the first and last pending times on this root. The new first
      // pending time is whatever is left on the root fiber.
    
      var remainingExpirationTimeBeforeCommit = getRemainingExpirationTime(finishedWork);
      markRootFinishedAtTime(root, expirationTime, remainingExpirationTimeBeforeCommit);
    
      if (root === workInProgressRoot) {
        // We can reset these now that they are finished.
        workInProgressRoot = null;
        workInProgress = null;
        renderExpirationTime = NoWork;
      } else {} // This indicates that the last root we worked on is not the same one that
      // we're committing now. This most commonly happens when a suspended root
      // times out.
      // Get the list of effects.
    
    
      var firstEffect;
    
      if (finishedWork.effectTag > PerformedWork) {
        // A fiber's effect list consists only of its children, not itself. So if
        // the root has an effect, we need to add it to the end of the list. The
        // resulting list is the set that would belong to the root's parent, if it
        // had one; that is, all the effects in the tree including the root.
        if (finishedWork.lastEffect !== null) {
          finishedWork.lastEffect.nextEffect = finishedWork;
          firstEffect = finishedWork.firstEffect;
        } else {
          firstEffect = finishedWork;
        }
      } else {
        // There is no effect on the root.
        firstEffect = finishedWork.firstEffect;
      }
    
      if (firstEffect !== null) {
        var prevExecutionContext = executionContext;
        executionContext |= CommitContext;
        var prevInteractions = pushInteractions(root); // Reset this to null before calling lifecycles
    
        ReactCurrentOwner$2.current = null; // The commit phase is broken into several sub-phases. We do a separate pass
        // of the effect list for each phase: all mutation effects come before all
        // layout effects, and so on.
        // The first phase a "before mutation" phase. We use this phase to read the
        // state of the host tree right before we mutate it. This is where
        // getSnapshotBeforeUpdate is called.
    
        startCommitSnapshotEffectsTimer();
        prepareForCommit(root.containerInfo);
        nextEffect = firstEffect;
    
        do {
          {
            invokeGuardedCallback(null, commitBeforeMutationEffects, null);
    
            if (hasCaughtError()) {
              (function () {
                if (!(nextEffect !== null)) {
                  {
                    throw ReactError(Error("Should be working on an effect."));
                  }
                }
              })();
    
              var error = clearCaughtError();
              captureCommitPhaseError(nextEffect, error);
              nextEffect = nextEffect.nextEffect;
            }
          }
        } while (nextEffect !== null);
    
        stopCommitSnapshotEffectsTimer();
    
        if (enableProfilerTimer) {
          // Mark the current commit time to be shared by all Profilers in this
          // batch. This enables them to be grouped later.
          recordCommitTime();
        } // The next phase is the mutation phase, where we mutate the host tree.
    
    
        startCommitHostEffectsTimer();
        nextEffect = firstEffect;
    
        do {
          {
            invokeGuardedCallback(null, commitMutationEffects, null, root, renderPriorityLevel);
    
            if (hasCaughtError()) {
              (function () {
                if (!(nextEffect !== null)) {
                  {
                    throw ReactError(Error("Should be working on an effect."));
                  }
                }
              })();
    
              var _error = clearCaughtError();
    
              captureCommitPhaseError(nextEffect, _error);
              nextEffect = nextEffect.nextEffect;
            }
          }
        } while (nextEffect !== null);
    
        stopCommitHostEffectsTimer();
        resetAfterCommit(root.containerInfo); // The work-in-progress tree is now the current tree. This must come after
        // the mutation phase, so that the previous tree is still current during
        // componentWillUnmount, but before the layout phase, so that the finished
        // work is current during componentDidMount/Update.
    
        root.current = finishedWork; // The next phase is the layout phase, where we call effects that read
        // the host tree after it's been mutated. The idiomatic use case for this is
        // layout, but class component lifecycles also fire here for legacy reasons.
    
        startCommitLifeCyclesTimer();
        nextEffect = firstEffect;
    
        do {
          {
            invokeGuardedCallback(null, commitLayoutEffects, null, root, expirationTime);
    
            if (hasCaughtError()) {
              (function () {
                if (!(nextEffect !== null)) {
                  {
                    throw ReactError(Error("Should be working on an effect."));
                  }
                }
              })();
    
              var _error2 = clearCaughtError();
    
              captureCommitPhaseError(nextEffect, _error2);
              nextEffect = nextEffect.nextEffect;
            }
          }
        } while (nextEffect !== null);
    
        stopCommitLifeCyclesTimer();
        nextEffect = null; // Tell Scheduler to yield at the end of the frame, so the browser has an
        // opportunity to paint.
    
        requestPaint();
    
        if (enableSchedulerTracing) {
          popInteractions(prevInteractions);
        }
    
        executionContext = prevExecutionContext;
      } else {
        // No effects.
        root.current = finishedWork; // Measure these anyway so the flamegraph explicitly shows that there were
        // no effects.
        // TODO: Maybe there's a better way to report this.
    
        startCommitSnapshotEffectsTimer();
        stopCommitSnapshotEffectsTimer();
    
        if (enableProfilerTimer) {
          recordCommitTime();
        }
    
        startCommitHostEffectsTimer();
        stopCommitHostEffectsTimer();
        startCommitLifeCyclesTimer();
        stopCommitLifeCyclesTimer();
      }
    
      stopCommitTimer();
      var rootDidHavePassiveEffects = rootDoesHavePassiveEffects;
    
      if (rootDoesHavePassiveEffects) {
        // This commit has passive effects. Stash a reference to them. But don't
        // schedule a callback until after flushing layout work.
        rootDoesHavePassiveEffects = false;
        rootWithPendingPassiveEffects = root;
        pendingPassiveEffectsExpirationTime = expirationTime;
        pendingPassiveEffectsRenderPriority = renderPriorityLevel;
      } else {
        // We are done with the effect chain at this point so let's clear the
        // nextEffect pointers to assist with GC. If we have passive effects, we'll
        // clear this in flushPassiveEffects.
        nextEffect = firstEffect;
    
        while (nextEffect !== null) {
          var nextNextEffect = nextEffect.nextEffect;
          nextEffect.nextEffect = null;
          nextEffect = nextNextEffect;
        }
      } // Check if there's remaining work on this root
    
    
      var remainingExpirationTime = root.firstPendingTime;
    
      if (remainingExpirationTime !== NoWork) {
        if (enableSchedulerTracing) {
          if (spawnedWorkDuringRender !== null) {
            var expirationTimes = spawnedWorkDuringRender;
            spawnedWorkDuringRender = null;
    
            for (var i = 0; i < expirationTimes.length; i++) {
              scheduleInteractions(root, expirationTimes[i], root.memoizedInteractions);
            }
          }
    
          schedulePendingInteractions(root, remainingExpirationTime);
        }
      } else {
        // If there's no remaining work, we can clear the set of already failed
        // error boundaries.
        legacyErrorBoundariesThatAlreadyFailed = null;
      }
    
      if (enableSchedulerTracing) {
        if (!rootDidHavePassiveEffects) {
          // If there are no passive effects, then we can complete the pending interactions.
          // Otherwise, we'll wait until after the passive effects are flushed.
          // Wait to do this until after remaining work has been scheduled,
          // so that we don't prematurely signal complete for interactions when there's e.g. hidden work.
          finishPendingInteractions(root, expirationTime);
        }
      }
    
      if (remainingExpirationTime === Sync) {
        // Count the number of times the root synchronously re-renders without
        // finishing. If there are too many, it indicates an infinite update loop.
        if (root === rootWithNestedUpdates) {
          nestedUpdateCount++;
        } else {
          nestedUpdateCount = 0;
          rootWithNestedUpdates = root;
        }
      } else {
        nestedUpdateCount = 0;
      }
    
      onCommitRoot(finishedWork.stateNode, expirationTime); // Always call this before exiting `commitRoot`, to ensure that any
      // additional work on this root is scheduled.
    
      ensureRootIsScheduled(root);
    
      if (hasUncaughtError) {
        hasUncaughtError = false;
        var _error3 = firstUncaughtError;
        firstUncaughtError = null;
        throw _error3;
      }
    
      if ((executionContext & LegacyUnbatchedContext) !== NoContext) {
        // This is a legacy edge case. We just committed the initial mount of
        // a ReactDOM.render-ed root inside of batchedUpdates. The commit fired
        // synchronously, but layout updates should be deferred until the end
        // of the batch.
        return null;
      } // If layout work was scheduled, flush it now.
    
    
      flushSyncCallbackQueue();
      return null;
    }
    
    function commitBeforeMutationEffects() {
      while (nextEffect !== null) {
        var effectTag = nextEffect.effectTag;
    
        if ((effectTag & Snapshot) !== NoEffect) {
          setCurrentFiber(nextEffect);
          recordEffect();
          var current$$1 = nextEffect.alternate;
          commitBeforeMutationLifeCycles(current$$1, nextEffect);
          resetCurrentFiber();
        }
    
        if ((effectTag & Passive) !== NoEffect) {
          // If there are passive effects, schedule a callback to flush at
          // the earliest opportunity.
          if (!rootDoesHavePassiveEffects) {
            rootDoesHavePassiveEffects = true;
            scheduleCallback(NormalPriority, function () {
              flushPassiveEffects();
              return null;
            });
          }
        }
    
        nextEffect = nextEffect.nextEffect;
      }
    }
    
    function commitMutationEffects(root, renderPriorityLevel) {
      // TODO: Should probably move the bulk of this function to commitWork.
      while (nextEffect !== null) {
        setCurrentFiber(nextEffect);
        var effectTag = nextEffect.effectTag;
    
        if (effectTag & ContentReset) {
          commitResetTextContent(nextEffect);
        }
    
        if (effectTag & Ref) {
          var current$$1 = nextEffect.alternate;
    
          if (current$$1 !== null) {
            commitDetachRef(current$$1);
          }
        } // The following switch statement is only concerned about placement,
        // updates, and deletions. To avoid needing to add a case for every possible
        // bitmap value, we remove the secondary effects from the effect tag and
        // switch on that value.
    
    
        var primaryEffectTag = effectTag & (Placement | Update | Deletion | Hydrating);
    
        switch (primaryEffectTag) {
          case Placement:
            {
              commitPlacement(nextEffect); // Clear the "placement" from effect tag so that we know that this is
              // inserted, before any life-cycles like componentDidMount gets called.
              // TODO: findDOMNode doesn't rely on this any more but isMounted does
              // and isMounted is deprecated anyway so we should be able to kill this.
    
              nextEffect.effectTag &= ~Placement;
              break;
            }
    
          case PlacementAndUpdate:
            {
              // Placement
              commitPlacement(nextEffect); // Clear the "placement" from effect tag so that we know that this is
              // inserted, before any life-cycles like componentDidMount gets called.
    
              nextEffect.effectTag &= ~Placement; // Update
    
              var _current = nextEffect.alternate;
              commitWork(_current, nextEffect);
              break;
            }
    
          case Hydrating:
            {
              nextEffect.effectTag &= ~Hydrating;
              break;
            }
    
          case HydratingAndUpdate:
            {
              nextEffect.effectTag &= ~Hydrating; // Update
    
              var _current2 = nextEffect.alternate;
              commitWork(_current2, nextEffect);
              break;
            }
    
          case Update:
            {
              var _current3 = nextEffect.alternate;
              commitWork(_current3, nextEffect);
              break;
            }
    
          case Deletion:
            {
              commitDeletion(root, nextEffect, renderPriorityLevel);
              break;
            }
        } // TODO: Only record a mutation effect if primaryEffectTag is non-zero.
    
    
        recordEffect();
        resetCurrentFiber();
        nextEffect = nextEffect.nextEffect;
      }
    }
    
    function commitLayoutEffects(root, committedExpirationTime) {
      // TODO: Should probably move the bulk of this function to commitWork.
      while (nextEffect !== null) {
        setCurrentFiber(nextEffect);
        var effectTag = nextEffect.effectTag;
    
        if (effectTag & (Update | Callback)) {
          recordEffect();
          var current$$1 = nextEffect.alternate;
          commitLifeCycles(root, current$$1, nextEffect, committedExpirationTime);
        }
    
        if (effectTag & Ref) {
          recordEffect();
          commitAttachRef(nextEffect);
        }
    
        resetCurrentFiber();
        nextEffect = nextEffect.nextEffect;
      }
    }
    
    function flushPassiveEffects() {
      if (pendingPassiveEffectsRenderPriority !== NoPriority) {
        var priorityLevel = pendingPassiveEffectsRenderPriority > NormalPriority ? NormalPriority : pendingPassiveEffectsRenderPriority;
        pendingPassiveEffectsRenderPriority = NoPriority;
        return runWithPriority$2(priorityLevel, flushPassiveEffectsImpl);
      }
    }
    
    function flushPassiveEffectsImpl() {
      if (rootWithPendingPassiveEffects === null) {
        return false;
      }
    
      var root = rootWithPendingPassiveEffects;
      var expirationTime = pendingPassiveEffectsExpirationTime;
      rootWithPendingPassiveEffects = null;
      pendingPassiveEffectsExpirationTime = NoWork;
    
      (function () {
        if (!((executionContext & (RenderContext | CommitContext)) === NoContext)) {
          {
            throw ReactError(Error("Cannot flush passive effects while already rendering."));
          }
        }
      })();
    
      var prevExecutionContext = executionContext;
      executionContext |= CommitContext;
      var prevInteractions = pushInteractions(root); // Note: This currently assumes there are no passive effects on the root
      // fiber, because the root is not part of its own effect list. This could
      // change in the future.
    
      var effect = root.current.firstEffect;
    
      while (effect !== null) {
        {
          setCurrentFiber(effect);
          invokeGuardedCallback(null, commitPassiveHookEffects, null, effect);
    
          if (hasCaughtError()) {
            (function () {
              if (!(effect !== null)) {
                {
                  throw ReactError(Error("Should be working on an effect."));
                }
              }
            })();
    
            var error = clearCaughtError();
            captureCommitPhaseError(effect, error);
          }
    
          resetCurrentFiber();
        }
    
        var nextNextEffect = effect.nextEffect; // Remove nextEffect pointer to assist GC
    
        effect.nextEffect = null;
        effect = nextNextEffect;
      }
    
      if (enableSchedulerTracing) {
        popInteractions(prevInteractions);
        finishPendingInteractions(root, expirationTime);
      }
    
      executionContext = prevExecutionContext;
      flushSyncCallbackQueue(); // If additional passive effects were scheduled, increment a counter. If this
      // exceeds the limit, we'll fire a warning.
    
      nestedPassiveUpdateCount = rootWithPendingPassiveEffects === null ? 0 : nestedPassiveUpdateCount + 1;
      return true;
    }
    
    function isAlreadyFailedLegacyErrorBoundary(instance) {
      return legacyErrorBoundariesThatAlreadyFailed !== null && legacyErrorBoundariesThatAlreadyFailed.has(instance);
    }
    function markLegacyErrorBoundaryAsFailed(instance) {
      if (legacyErrorBoundariesThatAlreadyFailed === null) {
        legacyErrorBoundariesThatAlreadyFailed = new Set([instance]);
      } else {
        legacyErrorBoundariesThatAlreadyFailed.add(instance);
      }
    }
    
    function prepareToThrowUncaughtError(error) {
      if (!hasUncaughtError) {
        hasUncaughtError = true;
        firstUncaughtError = error;
      }
    }
    
    var onUncaughtError = prepareToThrowUncaughtError;
    
    function captureCommitPhaseErrorOnRoot(rootFiber, sourceFiber, error) {
      var errorInfo = createCapturedValue(error, sourceFiber);
      var update = createRootErrorUpdate(rootFiber, errorInfo, Sync);
      enqueueUpdate(rootFiber, update);
      var root = markUpdateTimeFromFiberToRoot(rootFiber, Sync);
    
      if (root !== null) {
        ensureRootIsScheduled(root);
        schedulePendingInteractions(root, Sync);
      }
    }
    
    function captureCommitPhaseError(sourceFiber, error) {
      if (sourceFiber.tag === HostRoot) {
        // Error was thrown at the root. There is no parent, so the root
        // itself should capture it.
        captureCommitPhaseErrorOnRoot(sourceFiber, sourceFiber, error);
        return;
      }
    
      var fiber = sourceFiber.return;
    
      while (fiber !== null) {
        if (fiber.tag === HostRoot) {
          captureCommitPhaseErrorOnRoot(fiber, sourceFiber, error);
          return;
        } else if (fiber.tag === ClassComponent) {
          var ctor = fiber.type;
          var instance = fiber.stateNode;
    
          if (typeof ctor.getDerivedStateFromError === 'function' || typeof instance.componentDidCatch === 'function' && !isAlreadyFailedLegacyErrorBoundary(instance)) {
            var errorInfo = createCapturedValue(error, sourceFiber);
            var update = createClassErrorUpdate(fiber, errorInfo, // TODO: This is always sync
            Sync);
            enqueueUpdate(fiber, update);
            var root = markUpdateTimeFromFiberToRoot(fiber, Sync);
    
            if (root !== null) {
              ensureRootIsScheduled(root);
              schedulePendingInteractions(root, Sync);
            }
    
            return;
          }
        }
    
        fiber = fiber.return;
      }
    }
    function pingSuspendedRoot(root, thenable, suspendedTime) {
      var pingCache = root.pingCache;
    
      if (pingCache !== null) {
        // The thenable resolved, so we no longer need to memoize, because it will
        // never be thrown again.
        pingCache.delete(thenable);
      }
    
      if (workInProgressRoot === root && renderExpirationTime === suspendedTime) {
        // Received a ping at the same priority level at which we're currently
        // rendering. We might want to restart this render. This should mirror
        // the logic of whether or not a root suspends once it completes.
        // TODO: If we're rendering sync either due to Sync, Batched or expired,
        // we should probably never restart.
        // If we're suspended with delay, we'll always suspend so we can always
        // restart. If we're suspended without any updates, it might be a retry.
        // If it's early in the retry we can restart. We can't know for sure
        // whether we'll eventually process an update during this render pass,
        // but it's somewhat unlikely that we get to a ping before that, since
        // getting to the root most update is usually very fast.
        if (workInProgressRootExitStatus === RootSuspendedWithDelay || workInProgressRootExitStatus === RootSuspended && workInProgressRootLatestProcessedExpirationTime === Sync && now() - globalMostRecentFallbackTime < FALLBACK_THROTTLE_MS) {
          // Restart from the root. Don't need to schedule a ping because
          // we're already working on this tree.
          prepareFreshStack(root, renderExpirationTime);
        } else {
          // Even though we can't restart right now, we might get an
          // opportunity later. So we mark this render as having a ping.
          workInProgressRootHasPendingPing = true;
        }
    
        return;
      }
    
      if (!isRootSuspendedAtTime(root, suspendedTime)) {
        // The root is no longer suspended at this time.
        return;
      }
    
      var lastPingedTime = root.lastPingedTime;
    
      if (lastPingedTime !== NoWork && lastPingedTime < suspendedTime) {
        // There's already a lower priority ping scheduled.
        return;
      } // Mark the time at which this ping was scheduled.
    
    
      root.lastPingedTime = suspendedTime;
    
      if (root.finishedExpirationTime === suspendedTime) {
        // If there's a pending fallback waiting to commit, throw it away.
        root.finishedExpirationTime = NoWork;
        root.finishedWork = null;
      }
    
      ensureRootIsScheduled(root);
      schedulePendingInteractions(root, suspendedTime);
    }
    
    function retryTimedOutBoundary(boundaryFiber, retryTime) {
      // The boundary fiber (a Suspense component or SuspenseList component)
      // previously was rendered in its fallback state. One of the promises that
      // suspended it has resolved, which means at least part of the tree was
      // likely unblocked. Try rendering again, at a new expiration time.
      if (retryTime === Never) {
        var suspenseConfig = null; // Retries don't carry over the already committed update.
    
        var currentTime = requestCurrentTime();
        retryTime = computeExpirationForFiber(currentTime, boundaryFiber, suspenseConfig);
      } // TODO: Special case idle priority?
    
    
      var root = markUpdateTimeFromFiberToRoot(boundaryFiber, retryTime);
    
      if (root !== null) {
        ensureRootIsScheduled(root);
        schedulePendingInteractions(root, retryTime);
      }
    }
    
    function retryDehydratedSuspenseBoundary(boundaryFiber) {
      var suspenseState = boundaryFiber.memoizedState;
      var retryTime = Never;
    
      if (suspenseState !== null) {
        retryTime = suspenseState.retryTime;
      }
    
      retryTimedOutBoundary(boundaryFiber, retryTime);
    }
    function resolveRetryThenable(boundaryFiber, thenable) {
      var retryTime = Never; // Default
    
      var retryCache;
    
      if (enableSuspenseServerRenderer) {
        switch (boundaryFiber.tag) {
          case SuspenseComponent:
            retryCache = boundaryFiber.stateNode;
            var suspenseState = boundaryFiber.memoizedState;
    
            if (suspenseState !== null) {
              retryTime = suspenseState.retryTime;
            }
    
            break;
    
          case SuspenseListComponent:
            retryCache = boundaryFiber.stateNode;
            break;
    
          default:
            (function () {
              {
                {
                  throw ReactError(Error("Pinged unknown suspense boundary type. This is probably a bug in React."));
                }
              }
            })();
    
        }
      } else {
        retryCache = boundaryFiber.stateNode;
      }
    
      if (retryCache !== null) {
        // The thenable resolved, so we no longer need to memoize, because it will
        // never be thrown again.
        retryCache.delete(thenable);
      }
    
      retryTimedOutBoundary(boundaryFiber, retryTime);
    } // Computes the next Just Noticeable Difference (JND) boundary.
    // The theory is that a person can't tell the difference between small differences in time.
    // Therefore, if we wait a bit longer than necessary that won't translate to a noticeable
    // difference in the experience. However, waiting for longer might mean that we can avoid
    // showing an intermediate loading state. The longer we have already waited, the harder it
    // is to tell small differences in time. Therefore, the longer we've already waited,
    // the longer we can wait additionally. At some point we have to give up though.
    // We pick a train model where the next boundary commits at a consistent schedule.
    // These particular numbers are vague estimates. We expect to adjust them based on research.
    
    function jnd(timeElapsed) {
      return timeElapsed < 120 ? 120 : timeElapsed < 480 ? 480 : timeElapsed < 1080 ? 1080 : timeElapsed < 1920 ? 1920 : timeElapsed < 3000 ? 3000 : timeElapsed < 4320 ? 4320 : ceil(timeElapsed / 1960) * 1960;
    }
    
    function computeMsUntilSuspenseLoadingDelay(mostRecentEventTime, committedExpirationTime, suspenseConfig) {
      var busyMinDurationMs = suspenseConfig.busyMinDurationMs | 0;
    
      if (busyMinDurationMs <= 0) {
        return 0;
      }
    
      var busyDelayMs = suspenseConfig.busyDelayMs | 0; // Compute the time until this render pass would expire.
    
      var currentTimeMs = now();
      var eventTimeMs = inferTimeFromExpirationTimeWithSuspenseConfig(mostRecentEventTime, suspenseConfig);
      var timeElapsed = currentTimeMs - eventTimeMs;
    
      if (timeElapsed <= busyDelayMs) {
        // If we haven't yet waited longer than the initial delay, we don't
        // have to wait any additional time.
        return 0;
      }
    
      var msUntilTimeout = busyDelayMs + busyMinDurationMs - timeElapsed; // This is the value that is passed to `setTimeout`.
    
      return msUntilTimeout;
    }
    
    function checkForNestedUpdates() {
      if (nestedUpdateCount > NESTED_UPDATE_LIMIT) {
        nestedUpdateCount = 0;
        rootWithNestedUpdates = null;
    
        (function () {
          {
            {
              throw ReactError(Error("Maximum update depth exceeded. This can happen when a component repeatedly calls setState inside componentWillUpdate or componentDidUpdate. React limits the number of nested updates to prevent infinite loops."));
            }
          }
        })();
      }
    
      {
        if (nestedPassiveUpdateCount > NESTED_PASSIVE_UPDATE_LIMIT) {
          nestedPassiveUpdateCount = 0;
          warning$1(false, 'Maximum update depth exceeded. This can happen when a component ' + "calls setState inside useEffect, but useEffect either doesn't " + 'have a dependency array, or one of the dependencies changes on ' + 'every render.');
        }
      }
    }
    
    function flushRenderPhaseStrictModeWarningsInDEV() {
      {
        ReactStrictModeWarnings.flushLegacyContextWarning();
    
        if (warnAboutDeprecatedLifecycles) {
          ReactStrictModeWarnings.flushPendingUnsafeLifecycleWarnings();
        }
      }
    }
    
    function stopFinishedWorkLoopTimer() {
      var didCompleteRoot = true;
      stopWorkLoopTimer(interruptedBy, didCompleteRoot);
      interruptedBy = null;
    }
    
    function stopInterruptedWorkLoopTimer() {
      // TODO: Track which fiber caused the interruption.
      var didCompleteRoot = false;
      stopWorkLoopTimer(interruptedBy, didCompleteRoot);
      interruptedBy = null;
    }
    
    function checkForInterruption(fiberThatReceivedUpdate, updateExpirationTime) {
      if (enableUserTimingAPI && workInProgressRoot !== null && updateExpirationTime > renderExpirationTime) {
        interruptedBy = fiberThatReceivedUpdate;
      }
    }
    
    var didWarnStateUpdateForUnmountedComponent = null;
    
    function warnAboutUpdateOnUnmountedFiberInDEV(fiber) {
      {
        var tag = fiber.tag;
    
        if (tag !== HostRoot && tag !== ClassComponent && tag !== FunctionComponent && tag !== ForwardRef && tag !== MemoComponent && tag !== SimpleMemoComponent) {
          // Only warn for user-defined components, not internal ones like Suspense.
          return;
        } // We show the whole stack but dedupe on the top component's name because
        // the problematic code almost always lies inside that component.
    
    
        var componentName = getComponentName(fiber.type) || 'ReactComponent';
    
        if (didWarnStateUpdateForUnmountedComponent !== null) {
          if (didWarnStateUpdateForUnmountedComponent.has(componentName)) {
            return;
          }
    
          didWarnStateUpdateForUnmountedComponent.add(componentName);
        } else {
          didWarnStateUpdateForUnmountedComponent = new Set([componentName]);
        }
    
        warningWithoutStack$1(false, "Can't perform a React state update on an unmounted component. This " + 'is a no-op, but it indicates a memory leak in your application. To ' + 'fix, cancel all subscriptions and asynchronous tasks in %s.%s', tag === ClassComponent ? 'the componentWillUnmount method' : 'a useEffect cleanup function', getStackByFiberInDevAndProd(fiber));
      }
    }
    
    var beginWork$$1;
    
    if ( true && replayFailedUnitOfWorkWithInvokeGuardedCallback) {
      var dummyFiber = null;
    
      beginWork$$1 = function (current$$1, unitOfWork, expirationTime) {
        // If a component throws an error, we replay it again in a synchronously
        // dispatched event, so that the debugger will treat it as an uncaught
        // error See ReactErrorUtils for more information.
        // Before entering the begin phase, copy the work-in-progress onto a dummy
        // fiber. If beginWork throws, we'll use this to reset the state.
        var originalWorkInProgressCopy = assignFiberPropertiesInDEV(dummyFiber, unitOfWork);
    
        try {
          return beginWork$1(current$$1, unitOfWork, expirationTime);
        } catch (originalError) {
          if (originalError !== null && typeof originalError === 'object' && typeof originalError.then === 'function') {
            // Don't replay promises. Treat everything else like an error.
            throw originalError;
          } // Keep this code in sync with renderRoot; any changes here must have
          // corresponding changes there.
    
    
          resetContextDependencies();
          resetHooks(); // Unwind the failed stack frame
    
          unwindInterruptedWork(unitOfWork); // Restore the original properties of the fiber.
    
          assignFiberPropertiesInDEV(unitOfWork, originalWorkInProgressCopy);
    
          if (enableProfilerTimer && unitOfWork.mode & ProfileMode) {
            // Reset the profiler timer.
            startProfilerTimer(unitOfWork);
          } // Run beginWork again.
    
    
          invokeGuardedCallback(null, beginWork$1, null, current$$1, unitOfWork, expirationTime);
    
          if (hasCaughtError()) {
            var replayError = clearCaughtError(); // `invokeGuardedCallback` sometimes sets an expando `_suppressLogging`.
            // Rethrow this error instead of the original one.
    
            throw replayError;
          } else {
            // This branch is reachable if the render phase is impure.
            throw originalError;
          }
        }
      };
    } else {
      beginWork$$1 = beginWork$1;
    }
    
    var didWarnAboutUpdateInRender = false;
    var didWarnAboutUpdateInGetChildContext = false;
    
    function warnAboutInvalidUpdatesOnClassComponentsInDEV(fiber) {
      {
        if (fiber.tag === ClassComponent) {
          switch (phase) {
            case 'getChildContext':
              if (didWarnAboutUpdateInGetChildContext) {
                return;
              }
    
              warningWithoutStack$1(false, 'setState(...): Cannot call setState() inside getChildContext()');
              didWarnAboutUpdateInGetChildContext = true;
              break;
    
            case 'render':
              if (didWarnAboutUpdateInRender) {
                return;
              }
    
              warningWithoutStack$1(false, 'Cannot update during an existing state transition (such as ' + 'within `render`). Render methods should be a pure function of ' + 'props and state.');
              didWarnAboutUpdateInRender = true;
              break;
          }
        }
      }
    } // a 'shared' variable that changes when act() opens/closes in tests.
    
    
    var IsThisRendererActing = {
      current: false
    };
    function warnIfNotScopedWithMatchingAct(fiber) {
      {
        if (warnsIfNotActing === true && IsSomeRendererActing.current === true && IsThisRendererActing.current !== true) {
          warningWithoutStack$1(false, "It looks like you're using the wrong act() around your test interactions.\n" + 'Be sure to use the matching version of act() corresponding to your renderer:\n\n' + '// for react-dom:\n' + "import {act} from 'react-dom/test-utils';\n" + '// ...\n' + 'act(() => ...);\n\n' + '// for react-test-renderer:\n' + "import TestRenderer from 'react-test-renderer';\n" + 'const {act} = TestRenderer;\n' + '// ...\n' + 'act(() => ...);' + '%s', getStackByFiberInDevAndProd(fiber));
        }
      }
    }
    function warnIfNotCurrentlyActingEffectsInDEV(fiber) {
      {
        if (warnsIfNotActing === true && (fiber.mode & StrictMode) !== NoMode && IsSomeRendererActing.current === false && IsThisRendererActing.current === false) {
          warningWithoutStack$1(false, 'An update to %s ran an effect, but was not wrapped in act(...).\n\n' + 'When testing, code that causes React state updates should be ' + 'wrapped into act(...):\n\n' + 'act(() => {\n' + '  /* fire events that update state */\n' + '});\n' + '/* assert on the output */\n\n' + "This ensures that you're testing the behavior the user would see " + 'in the browser.' + ' Learn more at https://fb.me/react-wrap-tests-with-act' + '%s', getComponentName(fiber.type), getStackByFiberInDevAndProd(fiber));
        }
      }
    }
    
    function warnIfNotCurrentlyActingUpdatesInDEV(fiber) {
      {
        if (warnsIfNotActing === true && executionContext === NoContext && IsSomeRendererActing.current === false && IsThisRendererActing.current === false) {
          warningWithoutStack$1(false, 'An update to %s inside a test was not wrapped in act(...).\n\n' + 'When testing, code that causes React state updates should be ' + 'wrapped into act(...):\n\n' + 'act(() => {\n' + '  /* fire events that update state */\n' + '});\n' + '/* assert on the output */\n\n' + "This ensures that you're testing the behavior the user would see " + 'in the browser.' + ' Learn more at https://fb.me/react-wrap-tests-with-act' + '%s', getComponentName(fiber.type), getStackByFiberInDevAndProd(fiber));
        }
      }
    }
    
    var warnIfNotCurrentlyActingUpdatesInDev = warnIfNotCurrentlyActingUpdatesInDEV; // In tests, we want to enforce a mocked scheduler.
    
    var didWarnAboutUnmockedScheduler = false; // TODO Before we release concurrent mode, revisit this and decide whether a mocked
    // scheduler is the actual recommendation. The alternative could be a testing build,
    // a new lib, or whatever; we dunno just yet. This message is for early adopters
    // to get their tests right.
    
    function warnIfUnmockedScheduler(fiber) {
      {
        if (didWarnAboutUnmockedScheduler === false && Scheduler.unstable_flushAllWithoutAsserting === undefined) {
          if (fiber.mode & BatchedMode || fiber.mode & ConcurrentMode) {
            didWarnAboutUnmockedScheduler = true;
            warningWithoutStack$1(false, 'In Concurrent or Sync modes, the "scheduler" module needs to be mocked ' + 'to guarantee consistent behaviour across tests and browsers. ' + 'For example, with jest: \n' + "jest.mock('scheduler', () => require('scheduler/unstable_mock'));\n\n" + 'For more info, visit https://fb.me/react-mock-scheduler');
          } else if (warnAboutUnmockedScheduler === true) {
            didWarnAboutUnmockedScheduler = true;
            warningWithoutStack$1(false, 'Starting from React v17, the "scheduler" module will need to be mocked ' + 'to guarantee consistent behaviour across tests and browsers. ' + 'For example, with jest: \n' + "jest.mock('scheduler', () => require('scheduler/unstable_mock'));\n\n" + 'For more info, visit https://fb.me/react-mock-scheduler');
          }
        }
      }
    }
    var componentsThatTriggeredHighPriSuspend = null;
    function checkForWrongSuspensePriorityInDEV(sourceFiber) {
      {
        var currentPriorityLevel = getCurrentPriorityLevel();
    
        if ((sourceFiber.mode & ConcurrentMode) !== NoEffect && (currentPriorityLevel === UserBlockingPriority$2 || currentPriorityLevel === ImmediatePriority)) {
          var workInProgressNode = sourceFiber;
    
          while (workInProgressNode !== null) {
            // Add the component that triggered the suspense
            var current$$1 = workInProgressNode.alternate;
    
            if (current$$1 !== null) {
              // TODO: warn component that triggers the high priority
              // suspend is the HostRoot
              switch (workInProgressNode.tag) {
                case ClassComponent:
                  // Loop through the component's update queue and see whether the component
                  // has triggered any high priority updates
                  var updateQueue = current$$1.updateQueue;
    
                  if (updateQueue !== null) {
                    var update = updateQueue.firstUpdate;
    
                    while (update !== null) {
                      var priorityLevel = update.priority;
    
                      if (priorityLevel === UserBlockingPriority$2 || priorityLevel === ImmediatePriority) {
                        if (componentsThatTriggeredHighPriSuspend === null) {
                          componentsThatTriggeredHighPriSuspend = new Set([getComponentName(workInProgressNode.type)]);
                        } else {
                          componentsThatTriggeredHighPriSuspend.add(getComponentName(workInProgressNode.type));
                        }
    
                        break;
                      }
    
                      update = update.next;
                    }
                  }
    
                  break;
    
                case FunctionComponent:
                case ForwardRef:
                case SimpleMemoComponent:
                  if (workInProgressNode.memoizedState !== null && workInProgressNode.memoizedState.baseUpdate !== null) {
                    var _update = workInProgressNode.memoizedState.baseUpdate; // Loop through the functional component's memoized state to see whether
                    // the component has triggered any high pri updates
    
                    while (_update !== null) {
                      var priority = _update.priority;
    
                      if (priority === UserBlockingPriority$2 || priority === ImmediatePriority) {
                        if (componentsThatTriggeredHighPriSuspend === null) {
                          componentsThatTriggeredHighPriSuspend = new Set([getComponentName(workInProgressNode.type)]);
                        } else {
                          componentsThatTriggeredHighPriSuspend.add(getComponentName(workInProgressNode.type));
                        }
    
                        break;
                      }
    
                      if (_update.next === workInProgressNode.memoizedState.baseUpdate) {
                        break;
                      }
    
                      _update = _update.next;
                    }
                  }
    
                  break;
    
                default:
                  break;
              }
            }
    
            workInProgressNode = workInProgressNode.return;
          }
        }
      }
    }
    
    function flushSuspensePriorityWarningInDEV() {
      {
        if (componentsThatTriggeredHighPriSuspend !== null) {
          var componentNames = [];
          componentsThatTriggeredHighPriSuspend.forEach(function (name) {
            return componentNames.push(name);
          });
          componentsThatTriggeredHighPriSuspend = null;
    
          if (componentNames.length > 0) {
            warningWithoutStack$1(false, '%s triggered a user-blocking update that suspended.' + '\n\n' + 'The fix is to split the update into multiple parts: a user-blocking ' + 'update to provide immediate feedback, and another update that ' + 'triggers the bulk of the changes.' + '\n\n' + 'Refer to the documentation for useSuspenseTransition to learn how ' + 'to implement this pattern.', // TODO: Add link to React docs with more information, once it exists
            componentNames.sort().join(', '));
          }
        }
      }
    }
    
    function computeThreadID(root, expirationTime) {
      // Interaction threads are unique per root and expiration time.
      return expirationTime * 1000 + root.interactionThreadID;
    }
    
    function markSpawnedWork(expirationTime) {
      if (!enableSchedulerTracing) {
        return;
      }
    
      if (spawnedWorkDuringRender === null) {
        spawnedWorkDuringRender = [expirationTime];
      } else {
        spawnedWorkDuringRender.push(expirationTime);
      }
    }
    
    function scheduleInteractions(root, expirationTime, interactions) {
      if (!enableSchedulerTracing) {
        return;
      }
    
      if (interactions.size > 0) {
        var pendingInteractionMap = root.pendingInteractionMap;
        var pendingInteractions = pendingInteractionMap.get(expirationTime);
    
        if (pendingInteractions != null) {
          interactions.forEach(function (interaction) {
            if (!pendingInteractions.has(interaction)) {
              // Update the pending async work count for previously unscheduled interaction.
              interaction.__count++;
            }
    
            pendingInteractions.add(interaction);
          });
        } else {
          pendingInteractionMap.set(expirationTime, new Set(interactions)); // Update the pending async work count for the current interactions.
    
          interactions.forEach(function (interaction) {
            interaction.__count++;
          });
        }
    
        var subscriber = tracing.__subscriberRef.current;
    
        if (subscriber !== null) {
          var threadID = computeThreadID(root, expirationTime);
          subscriber.onWorkScheduled(interactions, threadID);
        }
      }
    }
    
    function schedulePendingInteractions(root, expirationTime) {
      // This is called when work is scheduled on a root.
      // It associates the current interactions with the newly-scheduled expiration.
      // They will be restored when that expiration is later committed.
      if (!enableSchedulerTracing) {
        return;
      }
    
      scheduleInteractions(root, expirationTime, tracing.__interactionsRef.current);
    }
    
    function startWorkOnPendingInteractions(root, expirationTime) {
      // This is called when new work is started on a root.
      if (!enableSchedulerTracing) {
        return;
      } // Determine which interactions this batch of work currently includes, So that
      // we can accurately attribute time spent working on it, And so that cascading
      // work triggered during the render phase will be associated with it.
    
    
      var interactions = new Set();
      root.pendingInteractionMap.forEach(function (scheduledInteractions, scheduledExpirationTime) {
        if (scheduledExpirationTime >= expirationTime) {
          scheduledInteractions.forEach(function (interaction) {
            return interactions.add(interaction);
          });
        }
      }); // Store the current set of interactions on the FiberRoot for a few reasons:
      // We can re-use it in hot functions like renderRoot() without having to
      // recalculate it. We will also use it in commitWork() to pass to any Profiler
      // onRender() hooks. This also provides DevTools with a way to access it when
      // the onCommitRoot() hook is called.
    
      root.memoizedInteractions = interactions;
    
      if (interactions.size > 0) {
        var subscriber = tracing.__subscriberRef.current;
    
        if (subscriber !== null) {
          var threadID = computeThreadID(root, expirationTime);
    
          try {
            subscriber.onWorkStarted(interactions, threadID);
          } catch (error) {
            // If the subscriber throws, rethrow it in a separate task
            scheduleCallback(ImmediatePriority, function () {
              throw error;
            });
          }
        }
      }
    }
    
    function finishPendingInteractions(root, committedExpirationTime) {
      if (!enableSchedulerTracing) {
        return;
      }
    
      var earliestRemainingTimeAfterCommit = root.firstPendingTime;
      var subscriber;
    
      try {
        subscriber = tracing.__subscriberRef.current;
    
        if (subscriber !== null && root.memoizedInteractions.size > 0) {
          var threadID = computeThreadID(root, committedExpirationTime);
          subscriber.onWorkStopped(root.memoizedInteractions, threadID);
        }
      } catch (error) {
        // If the subscriber throws, rethrow it in a separate task
        scheduleCallback(ImmediatePriority, function () {
          throw error;
        });
      } finally {
        // Clear completed interactions from the pending Map.
        // Unless the render was suspended or cascading work was scheduled,
        // In which case– leave pending interactions until the subsequent render.
        var pendingInteractionMap = root.pendingInteractionMap;
        pendingInteractionMap.forEach(function (scheduledInteractions, scheduledExpirationTime) {
          // Only decrement the pending interaction count if we're done.
          // If there's still work at the current priority,
          // That indicates that we are waiting for suspense data.
          if (scheduledExpirationTime > earliestRemainingTimeAfterCommit) {
            pendingInteractionMap.delete(scheduledExpirationTime);
            scheduledInteractions.forEach(function (interaction) {
              interaction.__count--;
    
              if (subscriber !== null && interaction.__count === 0) {
                try {
                  subscriber.onInteractionScheduledWorkCompleted(interaction);
                } catch (error) {
                  // If the subscriber throws, rethrow it in a separate task
                  scheduleCallback(ImmediatePriority, function () {
                    throw error;
                  });
                }
              }
            });
          }
        });
      }
    }
    
    var onCommitFiberRoot = null;
    var onCommitFiberUnmount = null;
    var hasLoggedError = false;
    var isDevToolsPresent = typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ !== 'undefined';
    function injectInternals(internals) {
      if (typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ === 'undefined') {
        // No DevTools
        return false;
      }
    
      var hook = __REACT_DEVTOOLS_GLOBAL_HOOK__;
    
      if (hook.isDisabled) {
        // This isn't a real property on the hook, but it can be set to opt out
        // of DevTools integration and associated warnings and logs.
        // https://github.com/facebook/react/issues/3877
        return true;
      }
    
      if (!hook.supportsFiber) {
        {
          warningWithoutStack$1(false, 'The installed version of React DevTools is too old and will not work ' + 'with the current version of React. Please update React DevTools. ' + 'https://fb.me/react-devtools');
        } // DevTools exists, even though it doesn't support Fiber.
    
    
        return true;
      }
    
      try {
        var rendererID = hook.inject(internals); // We have successfully injected, so now it is safe to set up hooks.
    
        onCommitFiberRoot = function (root, expirationTime) {
          try {
            var didError = (root.current.effectTag & DidCapture) === DidCapture;
    
            if (enableProfilerTimer) {
              var currentTime = requestCurrentTime();
              var priorityLevel = inferPriorityFromExpirationTime(currentTime, expirationTime);
              hook.onCommitFiberRoot(rendererID, root, priorityLevel, didError);
            } else {
              hook.onCommitFiberRoot(rendererID, root, undefined, didError);
            }
          } catch (err) {
            if ( true && !hasLoggedError) {
              hasLoggedError = true;
              warningWithoutStack$1(false, 'React DevTools encountered an error: %s', err);
            }
          }
        };
    
        onCommitFiberUnmount = function (fiber) {
          try {
            hook.onCommitFiberUnmount(rendererID, fiber);
          } catch (err) {
            if ( true && !hasLoggedError) {
              hasLoggedError = true;
              warningWithoutStack$1(false, 'React DevTools encountered an error: %s', err);
            }
          }
        };
      } catch (err) {
        // Catch all errors because it is unsafe to throw during initialization.
        {
          warningWithoutStack$1(false, 'React DevTools encountered an error: %s.', err);
        }
      } // DevTools exists
    
    
      return true;
    }
    function onCommitRoot(root, expirationTime) {
      if (typeof onCommitFiberRoot === 'function') {
        onCommitFiberRoot(root, expirationTime);
      }
    }
    function onCommitUnmount(fiber) {
      if (typeof onCommitFiberUnmount === 'function') {
        onCommitFiberUnmount(fiber);
      }
    }
    
    var hasBadMapPolyfill;
    
    {
      hasBadMapPolyfill = false;
    
      try {
        var nonExtensibleObject = Object.preventExtensions({});
        var testMap = new Map([[nonExtensibleObject, null]]);
        var testSet = new Set([nonExtensibleObject]); // This is necessary for Rollup to not consider these unused.
        // https://github.com/rollup/rollup/issues/1771
        // TODO: we can remove these if Rollup fixes the bug.
    
        testMap.set(0, 0);
        testSet.add(0);
      } catch (e) {
        // TODO: Consider warning about bad polyfills
        hasBadMapPolyfill = true;
      }
    }
    
    var debugCounter = 1;
    
    function FiberNode(tag, pendingProps, key, mode) {
      // Instance
      this.tag = tag;
      this.key = key;
      this.elementType = null;
      this.type = null;
      this.stateNode = null; // Fiber
    
      this.return = null;
      this.child = null;
      this.sibling = null;
      this.index = 0;
      this.ref = null;
      this.pendingProps = pendingProps;
      this.memoizedProps = null;
      this.updateQueue = null;
      this.memoizedState = null;
      this.dependencies = null;
      this.mode = mode; // Effects
    
      this.effectTag = NoEffect;
      this.nextEffect = null;
      this.firstEffect = null;
      this.lastEffect = null;
      this.expirationTime = NoWork;
      this.childExpirationTime = NoWork;
      this.alternate = null;
    
      if (enableProfilerTimer) {
        // Note: The following is done to avoid a v8 performance cliff.
        //
        // Initializing the fields below to smis and later updating them with
        // double values will cause Fibers to end up having separate shapes.
        // This behavior/bug has something to do with Object.preventExtension().
        // Fortunately this only impacts DEV builds.
        // Unfortunately it makes React unusably slow for some applications.
        // To work around this, initialize the fields below with doubles.
        //
        // Learn more about this here:
        // https://github.com/facebook/react/issues/14365
        // https://bugs.chromium.org/p/v8/issues/detail?id=8538
        this.actualDuration = Number.NaN;
        this.actualStartTime = Number.NaN;
        this.selfBaseDuration = Number.NaN;
        this.treeBaseDuration = Number.NaN; // It's okay to replace the initial doubles with smis after initialization.
        // This won't trigger the performance cliff mentioned above,
        // and it simplifies other profiler code (including DevTools).
    
        this.actualDuration = 0;
        this.actualStartTime = -1;
        this.selfBaseDuration = 0;
        this.treeBaseDuration = 0;
      } // This is normally DEV-only except www when it adds listeners.
      // TODO: remove the User Timing integration in favor of Root Events.
    
    
      if (enableUserTimingAPI) {
        this._debugID = debugCounter++;
        this._debugIsCurrentlyTiming = false;
      }
    
      {
        this._debugSource = null;
        this._debugOwner = null;
        this._debugNeedsRemount = false;
        this._debugHookTypes = null;
    
        if (!hasBadMapPolyfill && typeof Object.preventExtensions === 'function') {
          Object.preventExtensions(this);
        }
      }
    } // This is a constructor function, rather than a POJO constructor, still
    // please ensure we do the following:
    // 1) Nobody should add any instance methods on this. Instance methods can be
    //    more difficult to predict when they get optimized and they are almost
    //    never inlined properly in static compilers.
    // 2) Nobody should rely on `instanceof Fiber` for type testing. We should
    //    always know when it is a fiber.
    // 3) We might want to experiment with using numeric keys since they are easier
    //    to optimize in a non-JIT environment.
    // 4) We can easily go from a constructor to a createFiber object literal if that
    //    is faster.
    // 5) It should be easy to port this to a C struct and keep a C implementation
    //    compatible.
    
    
    var createFiber = function (tag, pendingProps, key, mode) {
      // $FlowFixMe: the shapes are exact here but Flow doesn't like constructors
      return new FiberNode(tag, pendingProps, key, mode);
    };
    
    function shouldConstruct(Component) {
      var prototype = Component.prototype;
      return !!(prototype && prototype.isReactComponent);
    }
    
    function isSimpleFunctionComponent(type) {
      return typeof type === 'function' && !shouldConstruct(type) && type.defaultProps === undefined;
    }
    function resolveLazyComponentTag(Component) {
      if (typeof Component === 'function') {
        return shouldConstruct(Component) ? ClassComponent : FunctionComponent;
      } else if (Component !== undefined && Component !== null) {
        var $$typeof = Component.$$typeof;
    
        if ($$typeof === REACT_FORWARD_REF_TYPE) {
          return ForwardRef;
        }
    
        if ($$typeof === REACT_MEMO_TYPE) {
          return MemoComponent;
        }
      }
    
      return IndeterminateComponent;
    } // This is used to create an alternate fiber to do work on.
    
    function createWorkInProgress(current, pendingProps, expirationTime) {
      var workInProgress = current.alternate;
    
      if (workInProgress === null) {
        // We use a double buffering pooling technique because we know that we'll
        // only ever need at most two versions of a tree. We pool the "other" unused
        // node that we're free to reuse. This is lazily created to avoid allocating
        // extra objects for things that are never updated. It also allow us to
        // reclaim the extra memory if needed.
        workInProgress = createFiber(current.tag, pendingProps, current.key, current.mode);
        workInProgress.elementType = current.elementType;
        workInProgress.type = current.type;
        workInProgress.stateNode = current.stateNode;
    
        {
          // DEV-only fields
          workInProgress._debugID = current._debugID;
          workInProgress._debugSource = current._debugSource;
          workInProgress._debugOwner = current._debugOwner;
          workInProgress._debugHookTypes = current._debugHookTypes;
        }
    
        workInProgress.alternate = current;
        current.alternate = workInProgress;
      } else {
        workInProgress.pendingProps = pendingProps; // We already have an alternate.
        // Reset the effect tag.
    
        workInProgress.effectTag = NoEffect; // The effect list is no longer valid.
    
        workInProgress.nextEffect = null;
        workInProgress.firstEffect = null;
        workInProgress.lastEffect = null;
    
        if (enableProfilerTimer) {
          // We intentionally reset, rather than copy, actualDuration & actualStartTime.
          // This prevents time from endlessly accumulating in new commits.
          // This has the downside of resetting values for different priority renders,
          // But works for yielding (the common case) and should support resuming.
          workInProgress.actualDuration = 0;
          workInProgress.actualStartTime = -1;
        }
      }
    
      workInProgress.childExpirationTime = current.childExpirationTime;
      workInProgress.expirationTime = current.expirationTime;
      workInProgress.child = current.child;
      workInProgress.memoizedProps = current.memoizedProps;
      workInProgress.memoizedState = current.memoizedState;
      workInProgress.updateQueue = current.updateQueue; // Clone the dependencies object. This is mutated during the render phase, so
      // it cannot be shared with the current fiber.
    
      var currentDependencies = current.dependencies;
      workInProgress.dependencies = currentDependencies === null ? null : {
        expirationTime: currentDependencies.expirationTime,
        firstContext: currentDependencies.firstContext,
        responders: currentDependencies.responders
      }; // These will be overridden during the parent's reconciliation
    
      workInProgress.sibling = current.sibling;
      workInProgress.index = current.index;
      workInProgress.ref = current.ref;
    
      if (enableProfilerTimer) {
        workInProgress.selfBaseDuration = current.selfBaseDuration;
        workInProgress.treeBaseDuration = current.treeBaseDuration;
      }
    
      {
        workInProgress._debugNeedsRemount = current._debugNeedsRemount;
    
        switch (workInProgress.tag) {
          case IndeterminateComponent:
          case FunctionComponent:
          case SimpleMemoComponent:
            workInProgress.type = resolveFunctionForHotReloading(current.type);
            break;
    
          case ClassComponent:
            workInProgress.type = resolveClassForHotReloading(current.type);
            break;
    
          case ForwardRef:
            workInProgress.type = resolveForwardRefForHotReloading(current.type);
            break;
    
          default:
            break;
        }
      }
    
      return workInProgress;
    } // Used to reuse a Fiber for a second pass.
    
    function resetWorkInProgress(workInProgress, renderExpirationTime) {
      // This resets the Fiber to what createFiber or createWorkInProgress would
      // have set the values to before during the first pass. Ideally this wouldn't
      // be necessary but unfortunately many code paths reads from the workInProgress
      // when they should be reading from current and writing to workInProgress.
      // We assume pendingProps, index, key, ref, return are still untouched to
      // avoid doing another reconciliation.
      // Reset the effect tag but keep any Placement tags, since that's something
      // that child fiber is setting, not the reconciliation.
      workInProgress.effectTag &= Placement; // The effect list is no longer valid.
    
      workInProgress.nextEffect = null;
      workInProgress.firstEffect = null;
      workInProgress.lastEffect = null;
      var current = workInProgress.alternate;
    
      if (current === null) {
        // Reset to createFiber's initial values.
        workInProgress.childExpirationTime = NoWork;
        workInProgress.expirationTime = renderExpirationTime;
        workInProgress.child = null;
        workInProgress.memoizedProps = null;
        workInProgress.memoizedState = null;
        workInProgress.updateQueue = null;
        workInProgress.dependencies = null;
    
        if (enableProfilerTimer) {
          // Note: We don't reset the actualTime counts. It's useful to accumulate
          // actual time across multiple render passes.
          workInProgress.selfBaseDuration = 0;
          workInProgress.treeBaseDuration = 0;
        }
      } else {
        // Reset to the cloned values that createWorkInProgress would've.
        workInProgress.childExpirationTime = current.childExpirationTime;
        workInProgress.expirationTime = current.expirationTime;
        workInProgress.child = current.child;
        workInProgress.memoizedProps = current.memoizedProps;
        workInProgress.memoizedState = current.memoizedState;
        workInProgress.updateQueue = current.updateQueue; // Clone the dependencies object. This is mutated during the render phase, so
        // it cannot be shared with the current fiber.
    
        var currentDependencies = current.dependencies;
        workInProgress.dependencies = currentDependencies === null ? null : {
          expirationTime: currentDependencies.expirationTime,
          firstContext: currentDependencies.firstContext,
          responders: currentDependencies.responders
        };
    
        if (enableProfilerTimer) {
          // Note: We don't reset the actualTime counts. It's useful to accumulate
          // actual time across multiple render passes.
          workInProgress.selfBaseDuration = current.selfBaseDuration;
          workInProgress.treeBaseDuration = current.treeBaseDuration;
        }
      }
    
      return workInProgress;
    }
    function createHostRootFiber(tag) {
      var mode;
    
      if (tag === ConcurrentRoot) {
        mode = ConcurrentMode | BatchedMode | StrictMode;
      } else if (tag === BatchedRoot) {
        mode = BatchedMode | StrictMode;
      } else {
        mode = NoMode;
      }
    
      if (enableProfilerTimer && isDevToolsPresent) {
        // Always collect profile timings when DevTools are present.
        // This enables DevTools to start capturing timing at any point–
        // Without some nodes in the tree having empty base times.
        mode |= ProfileMode;
      }
    
      return createFiber(HostRoot, null, null, mode);
    }
    function createFiberFromTypeAndProps(type, // React$ElementType
    key, pendingProps, owner, mode, expirationTime) {
      var fiber;
      var fiberTag = IndeterminateComponent; // The resolved type is set if we know what the final type will be. I.e. it's not lazy.
    
      var resolvedType = type;
    
      if (typeof type === 'function') {
        if (shouldConstruct(type)) {
          fiberTag = ClassComponent;
    
          {
            resolvedType = resolveClassForHotReloading(resolvedType);
          }
        } else {
          {
            resolvedType = resolveFunctionForHotReloading(resolvedType);
          }
        }
      } else if (typeof type === 'string') {
        fiberTag = HostComponent;
      } else {
        getTag: switch (type) {
          case REACT_FRAGMENT_TYPE:
            return createFiberFromFragment(pendingProps.children, mode, expirationTime, key);
    
          case REACT_CONCURRENT_MODE_TYPE:
            fiberTag = Mode;
            mode |= ConcurrentMode | BatchedMode | StrictMode;
            break;
    
          case REACT_STRICT_MODE_TYPE:
            fiberTag = Mode;
            mode |= StrictMode;
            break;
    
          case REACT_PROFILER_TYPE:
            return createFiberFromProfiler(pendingProps, mode, expirationTime, key);
    
          case REACT_SUSPENSE_TYPE:
            return createFiberFromSuspense(pendingProps, mode, expirationTime, key);
    
          case REACT_SUSPENSE_LIST_TYPE:
            return createFiberFromSuspenseList(pendingProps, mode, expirationTime, key);
    
          default:
            {
              if (typeof type === 'object' && type !== null) {
                switch (type.$$typeof) {
                  case REACT_PROVIDER_TYPE:
                    fiberTag = ContextProvider;
                    break getTag;
    
                  case REACT_CONTEXT_TYPE:
                    // This is a consumer
                    fiberTag = ContextConsumer;
                    break getTag;
    
                  case REACT_FORWARD_REF_TYPE:
                    fiberTag = ForwardRef;
    
                    {
                      resolvedType = resolveForwardRefForHotReloading(resolvedType);
                    }
    
                    break getTag;
    
                  case REACT_MEMO_TYPE:
                    fiberTag = MemoComponent;
                    break getTag;
    
                  case REACT_LAZY_TYPE:
                    fiberTag = LazyComponent;
                    resolvedType = null;
                    break getTag;
    
                  case REACT_FUNDAMENTAL_TYPE:
                    if (enableFundamentalAPI) {
                      return createFiberFromFundamental(type, pendingProps, mode, expirationTime, key);
                    }
    
                    break;
    
                  case REACT_SCOPE_TYPE:
                    if (enableScopeAPI) {
                      return createFiberFromScope(type, pendingProps, mode, expirationTime, key);
                    }
    
                }
              }
    
              var info = '';
    
              {
                if (type === undefined || typeof type === 'object' && type !== null && Object.keys(type).length === 0) {
                  info += ' You likely forgot to export your component from the file ' + "it's defined in, or you might have mixed up default and " + 'named imports.';
                }
    
                var ownerName = owner ? getComponentName(owner.type) : null;
    
                if (ownerName) {
                  info += '\n\nCheck the render method of `' + ownerName + '`.';
                }
              }
    
              (function () {
                {
                  {
                    throw ReactError(Error("Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: " + (type == null ? type : typeof type) + "." + info));
                  }
                }
              })();
            }
        }
      }
    
      fiber = createFiber(fiberTag, pendingProps, key, mode);
      fiber.elementType = type;
      fiber.type = resolvedType;
      fiber.expirationTime = expirationTime;
      return fiber;
    }
    function createFiberFromElement(element, mode, expirationTime) {
      var owner = null;
    
      {
        owner = element._owner;
      }
    
      var type = element.type;
      var key = element.key;
      var pendingProps = element.props;
      var fiber = createFiberFromTypeAndProps(type, key, pendingProps, owner, mode, expirationTime);
    
      {
        fiber._debugSource = element._source;
        fiber._debugOwner = element._owner;
      }
    
      return fiber;
    }
    function createFiberFromFragment(elements, mode, expirationTime, key) {
      var fiber = createFiber(Fragment, elements, key, mode);
      fiber.expirationTime = expirationTime;
      return fiber;
    }
    function createFiberFromFundamental(fundamentalComponent, pendingProps, mode, expirationTime, key) {
      var fiber = createFiber(FundamentalComponent, pendingProps, key, mode);
      fiber.elementType = fundamentalComponent;
      fiber.type = fundamentalComponent;
      fiber.expirationTime = expirationTime;
      return fiber;
    }
    
    function createFiberFromScope(scope, pendingProps, mode, expirationTime, key) {
      var fiber = createFiber(ScopeComponent, pendingProps, key, mode);
      fiber.type = scope;
      fiber.elementType = scope;
      fiber.expirationTime = expirationTime;
      return fiber;
    }
    
    function createFiberFromProfiler(pendingProps, mode, expirationTime, key) {
      {
        if (typeof pendingProps.id !== 'string' || typeof pendingProps.onRender !== 'function') {
          warningWithoutStack$1(false, 'Profiler must specify an "id" string and "onRender" function as props');
        }
      }
    
      var fiber = createFiber(Profiler, pendingProps, key, mode | ProfileMode); // TODO: The Profiler fiber shouldn't have a type. It has a tag.
    
      fiber.elementType = REACT_PROFILER_TYPE;
      fiber.type = REACT_PROFILER_TYPE;
      fiber.expirationTime = expirationTime;
      return fiber;
    }
    
    function createFiberFromSuspense(pendingProps, mode, expirationTime, key) {
      var fiber = createFiber(SuspenseComponent, pendingProps, key, mode); // TODO: The SuspenseComponent fiber shouldn't have a type. It has a tag.
      // This needs to be fixed in getComponentName so that it relies on the tag
      // instead.
    
      fiber.type = REACT_SUSPENSE_TYPE;
      fiber.elementType = REACT_SUSPENSE_TYPE;
      fiber.expirationTime = expirationTime;
      return fiber;
    }
    function createFiberFromSuspenseList(pendingProps, mode, expirationTime, key) {
      var fiber = createFiber(SuspenseListComponent, pendingProps, key, mode);
    
      {
        // TODO: The SuspenseListComponent fiber shouldn't have a type. It has a tag.
        // This needs to be fixed in getComponentName so that it relies on the tag
        // instead.
        fiber.type = REACT_SUSPENSE_LIST_TYPE;
      }
    
      fiber.elementType = REACT_SUSPENSE_LIST_TYPE;
      fiber.expirationTime = expirationTime;
      return fiber;
    }
    function createFiberFromText(content, mode, expirationTime) {
      var fiber = createFiber(HostText, content, null, mode);
      fiber.expirationTime = expirationTime;
      return fiber;
    }
    function createFiberFromHostInstanceForDeletion() {
      var fiber = createFiber(HostComponent, null, null, NoMode); // TODO: These should not need a type.
    
      fiber.elementType = 'DELETED';
      fiber.type = 'DELETED';
      return fiber;
    }
    function createFiberFromDehydratedFragment(dehydratedNode) {
      var fiber = createFiber(DehydratedFragment, null, null, NoMode);
      fiber.stateNode = dehydratedNode;
      return fiber;
    }
    function createFiberFromPortal(portal, mode, expirationTime) {
      var pendingProps = portal.children !== null ? portal.children : [];
      var fiber = createFiber(HostPortal, pendingProps, portal.key, mode);
      fiber.expirationTime = expirationTime;
      fiber.stateNode = {
        containerInfo: portal.containerInfo,
        pendingChildren: null,
        // Used by persistent updates
        implementation: portal.implementation
      };
      return fiber;
    } // Used for stashing WIP properties to replay failed work in DEV.
    
    function assignFiberPropertiesInDEV(target, source) {
      if (target === null) {
        // This Fiber's initial properties will always be overwritten.
        // We only use a Fiber to ensure the same hidden class so DEV isn't slow.
        target = createFiber(IndeterminateComponent, null, null, NoMode);
      } // This is intentionally written as a list of all properties.
      // We tried to use Object.assign() instead but this is called in
      // the hottest path, and Object.assign() was too slow:
      // https://github.com/facebook/react/issues/12502
      // This code is DEV-only so size is not a concern.
    
    
      target.tag = source.tag;
      target.key = source.key;
      target.elementType = source.elementType;
      target.type = source.type;
      target.stateNode = source.stateNode;
      target.return = source.return;
      target.child = source.child;
      target.sibling = source.sibling;
      target.index = source.index;
      target.ref = source.ref;
      target.pendingProps = source.pendingProps;
      target.memoizedProps = source.memoizedProps;
      target.updateQueue = source.updateQueue;
      target.memoizedState = source.memoizedState;
      target.dependencies = source.dependencies;
      target.mode = source.mode;
      target.effectTag = source.effectTag;
      target.nextEffect = source.nextEffect;
      target.firstEffect = source.firstEffect;
      target.lastEffect = source.lastEffect;
      target.expirationTime = source.expirationTime;
      target.childExpirationTime = source.childExpirationTime;
      target.alternate = source.alternate;
    
      if (enableProfilerTimer) {
        target.actualDuration = source.actualDuration;
        target.actualStartTime = source.actualStartTime;
        target.selfBaseDuration = source.selfBaseDuration;
        target.treeBaseDuration = source.treeBaseDuration;
      }
    
      target._debugID = source._debugID;
      target._debugSource = source._debugSource;
      target._debugOwner = source._debugOwner;
      target._debugIsCurrentlyTiming = source._debugIsCurrentlyTiming;
      target._debugNeedsRemount = source._debugNeedsRemount;
      target._debugHookTypes = source._debugHookTypes;
      return target;
    }
    
    function FiberRootNode(containerInfo, tag, hydrate) {
      this.tag = tag;
      this.current = null;
      this.containerInfo = containerInfo;
      this.pendingChildren = null;
      this.pingCache = null;
      this.finishedExpirationTime = NoWork;
      this.finishedWork = null;
      this.timeoutHandle = noTimeout;
      this.context = null;
      this.pendingContext = null;
      this.hydrate = hydrate;
      this.firstBatch = null;
      this.callbackNode = null;
      this.callbackPriority = NoPriority;
      this.firstPendingTime = NoWork;
      this.firstSuspendedTime = NoWork;
      this.lastSuspendedTime = NoWork;
      this.nextKnownPendingLevel = NoWork;
      this.lastPingedTime = NoWork;
      this.lastExpiredTime = NoWork;
    
      if (enableSchedulerTracing) {
        this.interactionThreadID = tracing.unstable_getThreadID();
        this.memoizedInteractions = new Set();
        this.pendingInteractionMap = new Map();
      }
    
      if (enableSuspenseCallback) {
        this.hydrationCallbacks = null;
      }
    }
    
    function createFiberRoot(containerInfo, tag, hydrate, hydrationCallbacks) {
      var root = new FiberRootNode(containerInfo, tag, hydrate);
    
      if (enableSuspenseCallback) {
        root.hydrationCallbacks = hydrationCallbacks;
      } // Cyclic construction. This cheats the type system right now because
      // stateNode is any.
    
    
      var uninitializedFiber = createHostRootFiber(tag);
      root.current = uninitializedFiber;
      uninitializedFiber.stateNode = root;
      return root;
    }
    function isRootSuspendedAtTime(root, expirationTime) {
      var firstSuspendedTime = root.firstSuspendedTime;
      var lastSuspendedTime = root.lastSuspendedTime;
      return firstSuspendedTime !== NoWork && firstSuspendedTime >= expirationTime && lastSuspendedTime <= expirationTime;
    }
    function markRootSuspendedAtTime(root, expirationTime) {
      var firstSuspendedTime = root.firstSuspendedTime;
      var lastSuspendedTime = root.lastSuspendedTime;
    
      if (firstSuspendedTime < expirationTime) {
        root.firstSuspendedTime = expirationTime;
      }
    
      if (lastSuspendedTime > expirationTime || firstSuspendedTime === NoWork) {
        root.lastSuspendedTime = expirationTime;
      }
    
      if (expirationTime <= root.lastPingedTime) {
        root.lastPingedTime = NoWork;
      }
    
      if (expirationTime <= root.lastExpiredTime) {
        root.lastExpiredTime = NoWork;
      }
    }
    function markRootUpdatedAtTime(root, expirationTime) {
      // Update the range of pending times
      var firstPendingTime = root.firstPendingTime;
    
      if (expirationTime > firstPendingTime) {
        root.firstPendingTime = expirationTime;
      } // Update the range of suspended times. Treat everything lower priority or
      // equal to this update as unsuspended.
    
    
      var firstSuspendedTime = root.firstSuspendedTime;
    
      if (firstSuspendedTime !== NoWork) {
        if (expirationTime >= firstSuspendedTime) {
          // The entire suspended range is now unsuspended.
          root.firstSuspendedTime = root.lastSuspendedTime = root.nextKnownPendingLevel = NoWork;
        } else if (expirationTime >= root.lastSuspendedTime) {
          root.lastSuspendedTime = expirationTime + 1;
        } // This is a pending level. Check if it's higher priority than the next
        // known pending level.
    
    
        if (expirationTime > root.nextKnownPendingLevel) {
          root.nextKnownPendingLevel = expirationTime;
        }
      }
    }
    function markRootFinishedAtTime(root, finishedExpirationTime, remainingExpirationTime) {
      // Update the range of pending times
      root.firstPendingTime = remainingExpirationTime; // Update the range of suspended times. Treat everything higher priority or
      // equal to this update as unsuspended.
    
      if (finishedExpirationTime <= root.lastSuspendedTime) {
        // The entire suspended range is now unsuspended.
        root.firstSuspendedTime = root.lastSuspendedTime = root.nextKnownPendingLevel = NoWork;
      } else if (finishedExpirationTime <= root.firstSuspendedTime) {
        // Part of the suspended range is now unsuspended. Narrow the range to
        // include everything between the unsuspended time (non-inclusive) and the
        // last suspended time.
        root.firstSuspendedTime = finishedExpirationTime - 1;
      }
    
      if (finishedExpirationTime <= root.lastPingedTime) {
        // Clear the pinged time
        root.lastPingedTime = NoWork;
      }
    
      if (finishedExpirationTime <= root.lastExpiredTime) {
        // Clear the expired time
        root.lastExpiredTime = NoWork;
      }
    }
    function markRootExpiredAtTime(root, expirationTime) {
      var lastExpiredTime = root.lastExpiredTime;
    
      if (lastExpiredTime === NoWork || lastExpiredTime > expirationTime) {
        root.lastExpiredTime = expirationTime;
      }
    }
    
    // This lets us hook into Fiber to debug what it's doing.
    // See https://github.com/facebook/react/pull/8033.
    // This is not part of the public API, not even for React DevTools.
    // You may only inject a debugTool if you work on React Fiber itself.
    var ReactFiberInstrumentation = {
      debugTool: null
    };
    var ReactFiberInstrumentation_1 = ReactFiberInstrumentation;
    
    var didWarnAboutNestedUpdates;
    var didWarnAboutFindNodeInStrictMode;
    
    {
      didWarnAboutNestedUpdates = false;
      didWarnAboutFindNodeInStrictMode = {};
    }
    
    function getContextForSubtree(parentComponent) {
      if (!parentComponent) {
        return emptyContextObject;
      }
    
      var fiber = get(parentComponent);
      var parentContext = findCurrentUnmaskedContext(fiber);
    
      if (fiber.tag === ClassComponent) {
        var Component = fiber.type;
    
        if (isContextProvider(Component)) {
          return processChildContext(fiber, Component, parentContext);
        }
      }
    
      return parentContext;
    }
    
    function scheduleRootUpdate(current$$1, element, expirationTime, suspenseConfig, callback) {
      {
        if (phase === 'render' && current !== null && !didWarnAboutNestedUpdates) {
          didWarnAboutNestedUpdates = true;
          warningWithoutStack$1(false, 'Render methods should be a pure function of props and state; ' + 'triggering nested component updates from render is not allowed. ' + 'If necessary, trigger nested updates in componentDidUpdate.\n\n' + 'Check the render method of %s.', getComponentName(current.type) || 'Unknown');
        }
      }
    
      var update = createUpdate(expirationTime, suspenseConfig); // Caution: React DevTools currently depends on this property
      // being called "element".
    
      update.payload = {
        element: element
      };
      callback = callback === undefined ? null : callback;
    
      if (callback !== null) {
        !(typeof callback === 'function') ? warningWithoutStack$1(false, 'render(...): Expected the last optional `callback` argument to be a ' + 'function. Instead received: %s.', callback) : void 0;
        update.callback = callback;
      }
    
      enqueueUpdate(current$$1, update);
      scheduleWork(current$$1, expirationTime);
      return expirationTime;
    }
    
    function updateContainerAtExpirationTime(element, container, parentComponent, expirationTime, suspenseConfig, callback) {
      // TODO: If this is a nested container, this won't be the root.
      var current$$1 = container.current;
    
      {
        if (ReactFiberInstrumentation_1.debugTool) {
          if (current$$1.alternate === null) {
            ReactFiberInstrumentation_1.debugTool.onMountContainer(container);
          } else if (element === null) {
            ReactFiberInstrumentation_1.debugTool.onUnmountContainer(container);
          } else {
            ReactFiberInstrumentation_1.debugTool.onUpdateContainer(container);
          }
        }
      }
    
      var context = getContextForSubtree(parentComponent);
    
      if (container.context === null) {
        container.context = context;
      } else {
        container.pendingContext = context;
      }
    
      return scheduleRootUpdate(current$$1, element, expirationTime, suspenseConfig, callback);
    }
    
    function findHostInstance(component) {
      var fiber = get(component);
    
      if (fiber === undefined) {
        if (typeof component.render === 'function') {
          (function () {
            {
              {
                throw ReactError(Error("Unable to find node on an unmounted component."));
              }
            }
          })();
        } else {
          (function () {
            {
              {
                throw ReactError(Error("Argument appears to not be a ReactComponent. Keys: " + Object.keys(component)));
              }
            }
          })();
        }
      }
    
      var hostFiber = findCurrentHostFiber(fiber);
    
      if (hostFiber === null) {
        return null;
      }
    
      return hostFiber.stateNode;
    }
    
    function findHostInstanceWithWarning(component, methodName) {
      {
        var fiber = get(component);
    
        if (fiber === undefined) {
          if (typeof component.render === 'function') {
            (function () {
              {
                {
                  throw ReactError(Error("Unable to find node on an unmounted component."));
                }
              }
            })();
          } else {
            (function () {
              {
                {
                  throw ReactError(Error("Argument appears to not be a ReactComponent. Keys: " + Object.keys(component)));
                }
              }
            })();
          }
        }
    
        var hostFiber = findCurrentHostFiber(fiber);
    
        if (hostFiber === null) {
          return null;
        }
    
        if (hostFiber.mode & StrictMode) {
          var componentName = getComponentName(fiber.type) || 'Component';
    
          if (!didWarnAboutFindNodeInStrictMode[componentName]) {
            didWarnAboutFindNodeInStrictMode[componentName] = true;
    
            if (fiber.mode & StrictMode) {
              warningWithoutStack$1(false, '%s is deprecated in StrictMode. ' + '%s was passed an instance of %s which is inside StrictMode. ' + 'Instead, add a ref directly to the element you want to reference. ' + 'Learn more about using refs safely here: ' + 'https://fb.me/react-strict-mode-find-node%s', methodName, methodName, componentName, getStackByFiberInDevAndProd(hostFiber));
            } else {
              warningWithoutStack$1(false, '%s is deprecated in StrictMode. ' + '%s was passed an instance of %s which renders StrictMode children. ' + 'Instead, add a ref directly to the element you want to reference. ' + 'Learn more about using refs safely here: ' + 'https://fb.me/react-strict-mode-find-node%s', methodName, methodName, componentName, getStackByFiberInDevAndProd(hostFiber));
            }
          }
        }
    
        return hostFiber.stateNode;
      }
    
      return findHostInstance(component);
    }
    
    function createContainer(containerInfo, tag, hydrate, hydrationCallbacks) {
      return createFiberRoot(containerInfo, tag, hydrate, hydrationCallbacks);
    }
    function updateContainer(element, container, parentComponent, callback) {
      var current$$1 = container.current;
      var currentTime = requestCurrentTime();
    
      {
        // $FlowExpectedError - jest isn't a global, and isn't recognized outside of tests
        if ('undefined' !== typeof jest) {
          warnIfUnmockedScheduler(current$$1);
          warnIfNotScopedWithMatchingAct(current$$1);
        }
      }
    
      var suspenseConfig = requestCurrentSuspenseConfig();
      var expirationTime = computeExpirationForFiber(currentTime, current$$1, suspenseConfig);
      return updateContainerAtExpirationTime(element, container, parentComponent, expirationTime, suspenseConfig, callback);
    }
    function getPublicRootInstance(container) {
      var containerFiber = container.current;
    
      if (!containerFiber.child) {
        return null;
      }
    
      switch (containerFiber.child.tag) {
        case HostComponent:
          return getPublicInstance(containerFiber.child.stateNode);
    
        default:
          return containerFiber.child.stateNode;
      }
    }
    function attemptSynchronousHydration$1(fiber) {
      switch (fiber.tag) {
        case HostRoot:
          var root = fiber.stateNode;
    
          if (root.hydrate) {
            // Flush the first scheduled "update".
            flushRoot(root, root.firstPendingTime);
          }
    
          break;
    
        case SuspenseComponent:
          flushSync(function () {
            return scheduleWork(fiber, Sync);
          });
          break;
      }
    }
    function findHostInstanceWithNoPortals(fiber) {
      var hostFiber = findCurrentHostFiberWithNoPortals(fiber);
    
      if (hostFiber === null) {
        return null;
      }
    
      if (hostFiber.tag === FundamentalComponent) {
        return hostFiber.stateNode.instance;
      }
    
      return hostFiber.stateNode;
    }
    
    var shouldSuspendImpl = function (fiber) {
      return false;
    };
    
    function shouldSuspend(fiber) {
      return shouldSuspendImpl(fiber);
    }
    var overrideHookState = null;
    var overrideProps = null;
    var scheduleUpdate = null;
    var setSuspenseHandler = null;
    
    {
      var copyWithSetImpl = function (obj, path, idx, value) {
        if (idx >= path.length) {
          return value;
        }
    
        var key = path[idx];
        var updated = Array.isArray(obj) ? obj.slice() : _assign({}, obj); // $FlowFixMe number or string is fine here
    
        updated[key] = copyWithSetImpl(obj[key], path, idx + 1, value);
        return updated;
      };
    
      var copyWithSet = function (obj, path, value) {
        return copyWithSetImpl(obj, path, 0, value);
      }; // Support DevTools editable values for useState and useReducer.
    
    
      overrideHookState = function (fiber, id, path, value) {
        // For now, the "id" of stateful hooks is just the stateful hook index.
        // This may change in the future with e.g. nested hooks.
        var currentHook = fiber.memoizedState;
    
        while (currentHook !== null && id > 0) {
          currentHook = currentHook.next;
          id--;
        }
    
        if (currentHook !== null) {
          var newState = copyWithSet(currentHook.memoizedState, path, value);
          currentHook.memoizedState = newState;
          currentHook.baseState = newState; // We aren't actually adding an update to the queue,
          // because there is no update we can add for useReducer hooks that won't trigger an error.
          // (There's no appropriate action type for DevTools overrides.)
          // As a result though, React will see the scheduled update as a noop and bailout.
          // Shallow cloning props works as a workaround for now to bypass the bailout check.
    
          fiber.memoizedProps = _assign({}, fiber.memoizedProps);
          scheduleWork(fiber, Sync);
        }
      }; // Support DevTools props for function components, forwardRef, memo, host components, etc.
    
    
      overrideProps = function (fiber, path, value) {
        fiber.pendingProps = copyWithSet(fiber.memoizedProps, path, value);
    
        if (fiber.alternate) {
          fiber.alternate.pendingProps = fiber.pendingProps;
        }
    
        scheduleWork(fiber, Sync);
      };
    
      scheduleUpdate = function (fiber) {
        scheduleWork(fiber, Sync);
      };
    
      setSuspenseHandler = function (newShouldSuspendImpl) {
        shouldSuspendImpl = newShouldSuspendImpl;
      };
    }
    
    function injectIntoDevTools(devToolsConfig) {
      var findFiberByHostInstance = devToolsConfig.findFiberByHostInstance;
      var ReactCurrentDispatcher = ReactSharedInternals.ReactCurrentDispatcher;
      return injectInternals(_assign({}, devToolsConfig, {
        overrideHookState: overrideHookState,
        overrideProps: overrideProps,
        setSuspenseHandler: setSuspenseHandler,
        scheduleUpdate: scheduleUpdate,
        currentDispatcherRef: ReactCurrentDispatcher,
        findHostInstanceByFiber: function (fiber) {
          var hostFiber = findCurrentHostFiber(fiber);
    
          if (hostFiber === null) {
            return null;
          }
    
          return hostFiber.stateNode;
        },
        findFiberByHostInstance: function (instance) {
          if (!findFiberByHostInstance) {
            // Might not be implemented by the renderer.
            return null;
          }
    
          return findFiberByHostInstance(instance);
        },
        // React Refresh
        findHostInstancesForRefresh: findHostInstancesForRefresh,
        scheduleRefresh: scheduleRefresh,
        scheduleRoot: scheduleRoot,
        setRefreshHandler: setRefreshHandler,
        // Enables DevTools to append owner stacks to error messages in DEV mode.
        getCurrentFiber: function () {
          return current;
        }
      }));
    }
    
    // This file intentionally does *not* have the Flow annotation.
    // Don't add it. See `./inline-typed.js` for an explanation.
    
    function createPortal$1(children, containerInfo, // TODO: figure out the API for cross-renderer implementation.
    implementation) {
      var key = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : null;
      return {
        // This tag allow us to uniquely identify this as a React Portal
        $$typeof: REACT_PORTAL_TYPE,
        key: key == null ? null : '' + key,
        children: children,
        containerInfo: containerInfo,
        implementation: implementation
      };
    }
    
    // TODO: this is special because it gets imported during build.
    
    var ReactVersion = '16.10.1';
    
    // TODO: This type is shared between the reconciler and ReactDOM, but will
    // eventually be lifted out to the renderer.
    setAttemptSynchronousHydration(attemptSynchronousHydration$1);
    var ReactCurrentOwner = ReactSharedInternals.ReactCurrentOwner;
    var topLevelUpdateWarnings;
    var warnOnInvalidCallback;
    var didWarnAboutUnstableCreatePortal = false;
    
    {
      if (typeof Map !== 'function' || // $FlowIssue Flow incorrectly thinks Map has no prototype
      Map.prototype == null || typeof Map.prototype.forEach !== 'function' || typeof Set !== 'function' || // $FlowIssue Flow incorrectly thinks Set has no prototype
      Set.prototype == null || typeof Set.prototype.clear !== 'function' || typeof Set.prototype.forEach !== 'function') {
        warningWithoutStack$1(false, 'React depends on Map and Set built-in types. Make sure that you load a ' + 'polyfill in older browsers. https://fb.me/react-polyfills');
      }
    
      topLevelUpdateWarnings = function (container) {
        if (container._reactRootContainer && container.nodeType !== COMMENT_NODE) {
          var hostInstance = findHostInstanceWithNoPortals(container._reactRootContainer._internalRoot.current);
    
          if (hostInstance) {
            !(hostInstance.parentNode === container) ? warningWithoutStack$1(false, 'render(...): It looks like the React-rendered content of this ' + 'container was removed without using React. This is not ' + 'supported and will cause errors. Instead, call ' + 'ReactDOM.unmountComponentAtNode to empty a container.') : void 0;
          }
        }
    
        var isRootRenderedBySomeReact = !!container._reactRootContainer;
        var rootEl = getReactRootElementInContainer(container);
        var hasNonRootReactChild = !!(rootEl && getInstanceFromNode$1(rootEl));
        !(!hasNonRootReactChild || isRootRenderedBySomeReact) ? warningWithoutStack$1(false, 'render(...): Replacing React-rendered children with a new root ' + 'component. If you intended to update the children of this node, ' + 'you should instead have the existing children update their state ' + 'and render the new components instead of calling ReactDOM.render.') : void 0;
        !(container.nodeType !== ELEMENT_NODE || !container.tagName || container.tagName.toUpperCase() !== 'BODY') ? warningWithoutStack$1(false, 'render(): Rendering components directly into document.body is ' + 'discouraged, since its children are often manipulated by third-party ' + 'scripts and browser extensions. This may lead to subtle ' + 'reconciliation issues. Try rendering into a container element created ' + 'for your app.') : void 0;
      };
    
      warnOnInvalidCallback = function (callback, callerName) {
        !(callback === null || typeof callback === 'function') ? warningWithoutStack$1(false, '%s(...): Expected the last optional `callback` argument to be a ' + 'function. Instead received: %s.', callerName, callback) : void 0;
      };
    }
    
    setRestoreImplementation(restoreControlledState$$1);
    
    function ReactBatch(root) {
      var expirationTime = computeUniqueAsyncExpiration();
      this._expirationTime = expirationTime;
      this._root = root;
      this._next = null;
      this._callbacks = null;
      this._didComplete = false;
      this._hasChildren = false;
      this._children = null;
      this._defer = true;
    }
    
    ReactBatch.prototype.render = function (children) {
      var _this = this;
    
      (function () {
        if (!_this._defer) {
          {
            throw ReactError(Error("batch.render: Cannot render a batch that already committed."));
          }
        }
      })();
    
      this._hasChildren = true;
      this._children = children;
      var internalRoot = this._root._internalRoot;
      var expirationTime = this._expirationTime;
      var work = new ReactWork();
      updateContainerAtExpirationTime(children, internalRoot, null, expirationTime, null, work._onCommit);
      return work;
    };
    
    ReactBatch.prototype.then = function (onComplete) {
      if (this._didComplete) {
        onComplete();
        return;
      }
    
      var callbacks = this._callbacks;
    
      if (callbacks === null) {
        callbacks = this._callbacks = [];
      }
    
      callbacks.push(onComplete);
    };
    
    ReactBatch.prototype.commit = function () {
      var _this2 = this;
    
      var internalRoot = this._root._internalRoot;
      var firstBatch = internalRoot.firstBatch;
    
      (function () {
        if (!(_this2._defer && firstBatch !== null)) {
          {
            throw ReactError(Error("batch.commit: Cannot commit a batch multiple times."));
          }
        }
      })();
    
      if (!this._hasChildren) {
        // This batch is empty. Return.
        this._next = null;
        this._defer = false;
        return;
      }
    
      var expirationTime = this._expirationTime; // Ensure this is the first batch in the list.
    
      if (firstBatch !== this) {
        // This batch is not the earliest batch. We need to move it to the front.
        // Update its expiration time to be the expiration time of the earliest
        // batch, so that we can flush it without flushing the other batches.
        if (this._hasChildren) {
          expirationTime = this._expirationTime = firstBatch._expirationTime; // Rendering this batch again ensures its children will be the final state
          // when we flush (updates are processed in insertion order: last
          // update wins).
          // TODO: This forces a restart. Should we print a warning?
    
          this.render(this._children);
        } // Remove the batch from the list.
    
    
        var previous = null;
        var batch = firstBatch;
    
        while (batch !== this) {
          previous = batch;
          batch = batch._next;
        }
    
        (function () {
          if (!(previous !== null)) {
            {
              throw ReactError(Error("batch.commit: Cannot commit a batch multiple times."));
            }
          }
        })();
    
        previous._next = batch._next; // Add it to the front.
    
        this._next = firstBatch;
        firstBatch = internalRoot.firstBatch = this;
      } // Synchronously flush all the work up to this batch's expiration time.
    
    
      this._defer = false;
      flushRoot(internalRoot, expirationTime); // Pop the batch from the list.
    
      var next = this._next;
      this._next = null;
      firstBatch = internalRoot.firstBatch = next; // Append the next earliest batch's children to the update queue.
    
      if (firstBatch !== null && firstBatch._hasChildren) {
        firstBatch.render(firstBatch._children);
      }
    };
    
    ReactBatch.prototype._onComplete = function () {
      if (this._didComplete) {
        return;
      }
    
      this._didComplete = true;
      var callbacks = this._callbacks;
    
      if (callbacks === null) {
        return;
      } // TODO: Error handling.
    
    
      for (var i = 0; i < callbacks.length; i++) {
        var _callback = callbacks[i];
    
        _callback();
      }
    };
    
    function ReactWork() {
      this._callbacks = null;
      this._didCommit = false; // TODO: Avoid need to bind by replacing callbacks in the update queue with
      // list of Work objects.
    
      this._onCommit = this._onCommit.bind(this);
    }
    
    ReactWork.prototype.then = function (onCommit) {
      if (this._didCommit) {
        onCommit();
        return;
      }
    
      var callbacks = this._callbacks;
    
      if (callbacks === null) {
        callbacks = this._callbacks = [];
      }
    
      callbacks.push(onCommit);
    };
    
    ReactWork.prototype._onCommit = function () {
      if (this._didCommit) {
        return;
      }
    
      this._didCommit = true;
      var callbacks = this._callbacks;
    
      if (callbacks === null) {
        return;
      } // TODO: Error handling.
    
    
      for (var i = 0; i < callbacks.length; i++) {
        var _callback2 = callbacks[i];
    
        (function () {
          if (!(typeof _callback2 === 'function')) {
            {
              throw ReactError(Error("Invalid argument passed as callback. Expected a function. Instead received: " + _callback2));
            }
          }
        })();
    
        _callback2();
      }
    };
    
    function createRootImpl(container, tag, options) {
      // Tag is either LegacyRoot or Concurrent Root
      var hydrate = options != null && options.hydrate === true;
      var hydrationCallbacks = options != null && options.hydrationOptions || null;
      var root = createContainer(container, tag, hydrate, hydrationCallbacks);
      markContainerAsRoot(root.current, container);
    
      if (hydrate && tag !== LegacyRoot) {
        var doc = container.nodeType === DOCUMENT_NODE ? container : container.ownerDocument;
        eagerlyTrapReplayableEvents(doc);
      }
    
      return root;
    }
    
    function ReactSyncRoot(container, tag, options) {
      this._internalRoot = createRootImpl(container, tag, options);
    }
    
    function ReactRoot(container, options) {
      this._internalRoot = createRootImpl(container, ConcurrentRoot, options);
    }
    
    ReactRoot.prototype.render = ReactSyncRoot.prototype.render = function (children, callback) {
      var root = this._internalRoot;
      var work = new ReactWork();
      callback = callback === undefined ? null : callback;
    
      {
        warnOnInvalidCallback(callback, 'render');
      }
    
      if (callback !== null) {
        work.then(callback);
      }
    
      updateContainer(children, root, null, work._onCommit);
      return work;
    };
    
    ReactRoot.prototype.unmount = ReactSyncRoot.prototype.unmount = function (callback) {
      var root = this._internalRoot;
      var work = new ReactWork();
      callback = callback === undefined ? null : callback;
    
      {
        warnOnInvalidCallback(callback, 'render');
      }
    
      if (callback !== null) {
        work.then(callback);
      }
    
      updateContainer(null, root, null, work._onCommit);
      return work;
    }; // Sync roots cannot create batches. Only concurrent ones.
    
    
    ReactRoot.prototype.createBatch = function () {
      var batch = new ReactBatch(this);
      var expirationTime = batch._expirationTime;
      var internalRoot = this._internalRoot;
      var firstBatch = internalRoot.firstBatch;
    
      if (firstBatch === null) {
        internalRoot.firstBatch = batch;
        batch._next = null;
      } else {
        // Insert sorted by expiration time then insertion order
        var insertAfter = null;
        var insertBefore = firstBatch;
    
        while (insertBefore !== null && insertBefore._expirationTime >= expirationTime) {
          insertAfter = insertBefore;
          insertBefore = insertBefore._next;
        }
    
        batch._next = insertBefore;
    
        if (insertAfter !== null) {
          insertAfter._next = batch;
        }
      }
    
      return batch;
    };
    /**
     * True if the supplied DOM node is a valid node element.
     *
     * @param {?DOMElement} node The candidate DOM node.
     * @return {boolean} True if the DOM is a valid DOM node.
     * @internal
     */
    
    
    function isValidContainer(node) {
      return !!(node && (node.nodeType === ELEMENT_NODE || node.nodeType === DOCUMENT_NODE || node.nodeType === DOCUMENT_FRAGMENT_NODE || node.nodeType === COMMENT_NODE && node.nodeValue === ' react-mount-point-unstable '));
    }
    
    function getReactRootElementInContainer(container) {
      if (!container) {
        return null;
      }
    
      if (container.nodeType === DOCUMENT_NODE) {
        return container.documentElement;
      } else {
        return container.firstChild;
      }
    }
    
    function shouldHydrateDueToLegacyHeuristic(container) {
      var rootElement = getReactRootElementInContainer(container);
      return !!(rootElement && rootElement.nodeType === ELEMENT_NODE && rootElement.hasAttribute(ROOT_ATTRIBUTE_NAME));
    }
    
    setBatchingImplementation(batchedUpdates$1, discreteUpdates$1, flushDiscreteUpdates, batchedEventUpdates$1);
    var warnedAboutHydrateAPI = false;
    
    function legacyCreateRootFromDOMContainer(container, forceHydrate) {
      var shouldHydrate = forceHydrate || shouldHydrateDueToLegacyHeuristic(container); // First clear any existing content.
    
      if (!shouldHydrate) {
        var warned = false;
        var rootSibling;
    
        while (rootSibling = container.lastChild) {
          {
            if (!warned && rootSibling.nodeType === ELEMENT_NODE && rootSibling.hasAttribute(ROOT_ATTRIBUTE_NAME)) {
              warned = true;
              warningWithoutStack$1(false, 'render(): Target node has markup rendered by React, but there ' + 'are unrelated nodes as well. This is most commonly caused by ' + 'white-space inserted around server-rendered markup.');
            }
          }
    
          container.removeChild(rootSibling);
        }
      }
    
      {
        if (shouldHydrate && !forceHydrate && !warnedAboutHydrateAPI) {
          warnedAboutHydrateAPI = true;
          lowPriorityWarningWithoutStack$1(false, 'render(): Calling ReactDOM.render() to hydrate server-rendered markup ' + 'will stop working in React v17. Replace the ReactDOM.render() call ' + 'with ReactDOM.hydrate() if you want React to attach to the server HTML.');
        }
      } // Legacy roots are not batched.
    
    
      return new ReactSyncRoot(container, LegacyRoot, shouldHydrate ? {
        hydrate: true
      } : undefined);
    }
    
    function legacyRenderSubtreeIntoContainer(parentComponent, children, container, forceHydrate, callback) {
      {
        topLevelUpdateWarnings(container);
        warnOnInvalidCallback(callback === undefined ? null : callback, 'render');
      } // TODO: Without `any` type, Flow says "Property cannot be accessed on any
      // member of intersection type." Whyyyyyy.
    
    
      var root = container._reactRootContainer;
      var fiberRoot;
    
      if (!root) {
        // Initial mount
        root = container._reactRootContainer = legacyCreateRootFromDOMContainer(container, forceHydrate);
        fiberRoot = root._internalRoot;
    
        if (typeof callback === 'function') {
          var originalCallback = callback;
    
          callback = function () {
            var instance = getPublicRootInstance(fiberRoot);
            originalCallback.call(instance);
          };
        } // Initial mount should not be batched.
    
    
        unbatchedUpdates(function () {
          updateContainer(children, fiberRoot, parentComponent, callback);
        });
      } else {
        fiberRoot = root._internalRoot;
    
        if (typeof callback === 'function') {
          var _originalCallback = callback;
    
          callback = function () {
            var instance = getPublicRootInstance(fiberRoot);
    
            _originalCallback.call(instance);
          };
        } // Update
    
    
        updateContainer(children, fiberRoot, parentComponent, callback);
      }
    
      return getPublicRootInstance(fiberRoot);
    }
    
    function createPortal$$1(children, container) {
      var key = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;
    
      (function () {
        if (!isValidContainer(container)) {
          {
            throw ReactError(Error("Target container is not a DOM element."));
          }
        }
      })(); // TODO: pass ReactDOM portal implementation as third argument
    
    
      return createPortal$1(children, container, null, key);
    }
    
    var ReactDOM = {
      createPortal: createPortal$$1,
      findDOMNode: function (componentOrElement) {
        {
          var owner = ReactCurrentOwner.current;
    
          if (owner !== null && owner.stateNode !== null) {
            var warnedAboutRefsInRender = owner.stateNode._warnedAboutRefsInRender;
            !warnedAboutRefsInRender ? warningWithoutStack$1(false, '%s is accessing findDOMNode inside its render(). ' + 'render() should be a pure function of props and state. It should ' + 'never access something that requires stale data from the previous ' + 'render, such as refs. Move this logic to componentDidMount and ' + 'componentDidUpdate instead.', getComponentName(owner.type) || 'A component') : void 0;
            owner.stateNode._warnedAboutRefsInRender = true;
          }
        }
    
        if (componentOrElement == null) {
          return null;
        }
    
        if (componentOrElement.nodeType === ELEMENT_NODE) {
          return componentOrElement;
        }
    
        {
          return findHostInstanceWithWarning(componentOrElement, 'findDOMNode');
        }
    
        return findHostInstance(componentOrElement);
      },
      hydrate: function (element, container, callback) {
        (function () {
          if (!isValidContainer(container)) {
            {
              throw ReactError(Error("Target container is not a DOM element."));
            }
          }
        })();
    
        {
          !!container._reactHasBeenPassedToCreateRootDEV ? warningWithoutStack$1(false, 'You are calling ReactDOM.hydrate() on a container that was previously ' + 'passed to ReactDOM.%s(). This is not supported. ' + 'Did you mean to call createRoot(container, {hydrate: true}).render(element)?', enableStableConcurrentModeAPIs ? 'createRoot' : 'unstable_createRoot') : void 0;
        } // TODO: throw or warn if we couldn't hydrate?
    
    
        return legacyRenderSubtreeIntoContainer(null, element, container, true, callback);
      },
      render: function (element, container, callback) {
        (function () {
          if (!isValidContainer(container)) {
            {
              throw ReactError(Error("Target container is not a DOM element."));
            }
          }
        })();
    
        {
          !!container._reactHasBeenPassedToCreateRootDEV ? warningWithoutStack$1(false, 'You are calling ReactDOM.render() on a container that was previously ' + 'passed to ReactDOM.%s(). This is not supported. ' + 'Did you mean to call root.render(element)?', enableStableConcurrentModeAPIs ? 'createRoot' : 'unstable_createRoot') : void 0;
        }
    
        return legacyRenderSubtreeIntoContainer(null, element, container, false, callback);
      },
      unstable_renderSubtreeIntoContainer: function (parentComponent, element, containerNode, callback) {
        (function () {
          if (!isValidContainer(containerNode)) {
            {
              throw ReactError(Error("Target container is not a DOM element."));
            }
          }
        })();
    
        (function () {
          if (!(parentComponent != null && has(parentComponent))) {
            {
              throw ReactError(Error("parentComponent must be a valid React Component"));
            }
          }
        })();
    
        return legacyRenderSubtreeIntoContainer(parentComponent, element, containerNode, false, callback);
      },
      unmountComponentAtNode: function (container) {
        (function () {
          if (!isValidContainer(container)) {
            {
              throw ReactError(Error("unmountComponentAtNode(...): Target container is not a DOM element."));
            }
          }
        })();
    
        {
          !!container._reactHasBeenPassedToCreateRootDEV ? warningWithoutStack$1(false, 'You are calling ReactDOM.unmountComponentAtNode() on a container that was previously ' + 'passed to ReactDOM.%s(). This is not supported. Did you mean to call root.unmount()?', enableStableConcurrentModeAPIs ? 'createRoot' : 'unstable_createRoot') : void 0;
        }
    
        if (container._reactRootContainer) {
          {
            var rootEl = getReactRootElementInContainer(container);
            var renderedByDifferentReact = rootEl && !getInstanceFromNode$1(rootEl);
            !!renderedByDifferentReact ? warningWithoutStack$1(false, "unmountComponentAtNode(): The node you're attempting to unmount " + 'was rendered by another copy of React.') : void 0;
          } // Unmount should not be batched.
    
    
          unbatchedUpdates(function () {
            legacyRenderSubtreeIntoContainer(null, null, container, false, function () {
              container._reactRootContainer = null;
            });
          }); // If you call unmountComponentAtNode twice in quick succession, you'll
          // get `true` twice. That's probably fine?
    
          return true;
        } else {
          {
            var _rootEl = getReactRootElementInContainer(container);
    
            var hasNonRootReactChild = !!(_rootEl && getInstanceFromNode$1(_rootEl)); // Check if the container itself is a React root node.
    
            var isContainerReactRoot = container.nodeType === ELEMENT_NODE && isValidContainer(container.parentNode) && !!container.parentNode._reactRootContainer;
            !!hasNonRootReactChild ? warningWithoutStack$1(false, "unmountComponentAtNode(): The node you're attempting to unmount " + 'was rendered by React and is not a top-level container. %s', isContainerReactRoot ? 'You may have accidentally passed in a React root node instead ' + 'of its container.' : 'Instead, have the parent component update its state and ' + 'rerender in order to remove this component.') : void 0;
          }
    
          return false;
        }
      },
      // Temporary alias since we already shipped React 16 RC with it.
      // TODO: remove in React 17.
      unstable_createPortal: function () {
        if (!didWarnAboutUnstableCreatePortal) {
          didWarnAboutUnstableCreatePortal = true;
          lowPriorityWarningWithoutStack$1(false, 'The ReactDOM.unstable_createPortal() alias has been deprecated, ' + 'and will be removed in React 17+. Update your code to use ' + 'ReactDOM.createPortal() instead. It has the exact same API, ' + 'but without the "unstable_" prefix.');
        }
    
        return createPortal$$1.apply(void 0, arguments);
      },
      unstable_batchedUpdates: batchedUpdates$1,
      // TODO remove this legacy method, unstable_discreteUpdates replaces it
      unstable_interactiveUpdates: function (fn, a, b, c) {
        flushDiscreteUpdates();
        return discreteUpdates$1(fn, a, b, c);
      },
      unstable_discreteUpdates: discreteUpdates$1,
      unstable_flushDiscreteUpdates: flushDiscreteUpdates,
      flushSync: flushSync,
      unstable_createRoot: createRoot,
      unstable_createSyncRoot: createSyncRoot,
      unstable_flushControlled: flushControlled,
      __SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED: {
        // Keep in sync with ReactDOMUnstableNativeDependencies.js
        // ReactTestUtils.js, and ReactTestUtilsAct.js. This is an array for better minification.
        Events: [getInstanceFromNode$1, getNodeFromInstance$1, getFiberCurrentPropsFromNode$1, injection.injectEventPluginsByName, eventNameDispatchConfigs, accumulateTwoPhaseDispatches, accumulateDirectDispatches, enqueueStateRestore, restoreStateIfNeeded, dispatchEvent, runEventsInBatch, flushPassiveEffects, IsThisRendererActing]
      }
    };
    
    function createRoot(container, options) {
      var functionName = enableStableConcurrentModeAPIs ? 'createRoot' : 'unstable_createRoot';
    
      (function () {
        if (!isValidContainer(container)) {
          {
            throw ReactError(Error(functionName + "(...): Target container is not a DOM element."));
          }
        }
      })();
    
      warnIfReactDOMContainerInDEV(container);
      return new ReactRoot(container, options);
    }
    
    function createSyncRoot(container, options) {
      var functionName = enableStableConcurrentModeAPIs ? 'createRoot' : 'unstable_createRoot';
    
      (function () {
        if (!isValidContainer(container)) {
          {
            throw ReactError(Error(functionName + "(...): Target container is not a DOM element."));
          }
        }
      })();
    
      warnIfReactDOMContainerInDEV(container);
      return new ReactSyncRoot(container, BatchedRoot, options);
    }
    
    function warnIfReactDOMContainerInDEV(container) {
      {
        !!container._reactRootContainer ? warningWithoutStack$1(false, 'You are calling ReactDOM.%s() on a container that was previously ' + 'passed to ReactDOM.render(). This is not supported.', enableStableConcurrentModeAPIs ? 'createRoot' : 'unstable_createRoot') : void 0;
        container._reactHasBeenPassedToCreateRootDEV = true;
      }
    }
    
    if (enableStableConcurrentModeAPIs) {
      ReactDOM.createRoot = createRoot;
      ReactDOM.createSyncRoot = createSyncRoot;
    }
    
    var foundDevTools = injectIntoDevTools({
      findFiberByHostInstance: getClosestInstanceFromNode,
      bundleType: 1,
      version: ReactVersion,
      rendererPackageName: 'react-dom'
    });
    
    {
      if (!foundDevTools && canUseDOM && window.top === window.self) {
        // If we're in Chrome or Firefox, provide a download link if not installed.
        if (navigator.userAgent.indexOf('Chrome') > -1 && navigator.userAgent.indexOf('Edge') === -1 || navigator.userAgent.indexOf('Firefox') > -1) {
          var protocol = window.location.protocol; // Don't warn in exotic cases like chrome-extension://.
    
          if (/^(https?|file):$/.test(protocol)) {
            console.info('%cDownload the React DevTools ' + 'for a better development experience: ' + 'https://fb.me/react-devtools' + (protocol === 'file:' ? '\nYou might need to use a local HTTP server (instead of file://): ' + 'https://fb.me/react-devtools-faq' : ''), 'font-weight:bold');
          }
        }
      }
    }
    
    
    
    var ReactDOM$2 = Object.freeze({
        default: ReactDOM
    });
    
    var ReactDOM$3 = ( ReactDOM$2 && ReactDOM ) || ReactDOM$2;
    
    // TODO: decide on the top-level export form.
    // This is hacky but makes it work with both Rollup and Jest.
    
    
    var reactDom = ReactDOM$3.default || ReactDOM$3;
    
    module.exports = reactDom;
      })();
    }
    
    
    /***/ }),
    
    /***/ "./node_modules/react-dom/index.js":
    /*!*****************************************!*\
      !*** ./node_modules/react-dom/index.js ***!
      \*****************************************/
    /*! no static exports found */
    /***/ (function(module, exports, __webpack_require__) {
    
    "use strict";
    
    
    function checkDCE() {
      /* global __REACT_DEVTOOLS_GLOBAL_HOOK__ */
      if (
        typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ === 'undefined' ||
        typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.checkDCE !== 'function'
      ) {
        return;
      }
      if (true) {
        // This branch is unreachable because this function is only called
        // in production, but the condition is true only in development.
        // Therefore if the branch is still here, dead code elimination wasn't
        // properly applied.
        // Don't change the message. React DevTools relies on it. Also make sure
        // this message doesn't occur elsewhere in this function, or it will cause
        // a false positive.
        throw new Error('^_^');
      }
      try {
        // Verify that the code above has been dead code eliminated (DCE'd).
        __REACT_DEVTOOLS_GLOBAL_HOOK__.checkDCE(checkDCE);
      } catch (err) {
        // DevTools shouldn't crash React, no matter what.
        // We should still report in case we break this code.
        console.error(err);
      }
    }
    
    if (false) {} else {
      module.exports = __webpack_require__(/*! ./cjs/react-dom.development.js */ "./node_modules/react-dom/cjs/react-dom.development.js");
    }
    
    
    /***/ }),
    
    /***/ "./node_modules/react/cjs/react.development.js":
    /*!*****************************************************!*\
      !*** ./node_modules/react/cjs/react.development.js ***!
      \*****************************************************/
    /*! no static exports found */
    /***/ (function(module, exports, __webpack_require__) {
    
    "use strict";
    /** @license React v16.10.1
     * react.development.js
     *
     * Copyright (c) Facebook, Inc. and its affiliates.
     *
     * This source code is licensed under the MIT license found in the
     * LICENSE file in the root directory of this source tree.
     */
    
    
    
    
    
    if (true) {
      (function() {
    'use strict';
    
    var _assign = __webpack_require__(/*! object-assign */ "./node_modules/object-assign/index.js");
    var checkPropTypes = __webpack_require__(/*! prop-types/checkPropTypes */ "./node_modules/prop-types/checkPropTypes.js");
    
    // TODO: this is special because it gets imported during build.
    
    var ReactVersion = '16.10.1';
    
    // The Symbol used to tag the ReactElement-like types. If there is no native Symbol
    // nor polyfill, then a plain number is used for performance.
    var hasSymbol = typeof Symbol === 'function' && Symbol.for;
    var REACT_ELEMENT_TYPE = hasSymbol ? Symbol.for('react.element') : 0xeac7;
    var REACT_PORTAL_TYPE = hasSymbol ? Symbol.for('react.portal') : 0xeaca;
    var REACT_FRAGMENT_TYPE = hasSymbol ? Symbol.for('react.fragment') : 0xeacb;
    var REACT_STRICT_MODE_TYPE = hasSymbol ? Symbol.for('react.strict_mode') : 0xeacc;
    var REACT_PROFILER_TYPE = hasSymbol ? Symbol.for('react.profiler') : 0xead2;
    var REACT_PROVIDER_TYPE = hasSymbol ? Symbol.for('react.provider') : 0xeacd;
    var REACT_CONTEXT_TYPE = hasSymbol ? Symbol.for('react.context') : 0xeace; // TODO: We don't use AsyncMode or ConcurrentMode anymore. They were temporary
    // (unstable) APIs that have been removed. Can we remove the symbols?
    
    
    var REACT_CONCURRENT_MODE_TYPE = hasSymbol ? Symbol.for('react.concurrent_mode') : 0xeacf;
    var REACT_FORWARD_REF_TYPE = hasSymbol ? Symbol.for('react.forward_ref') : 0xead0;
    var REACT_SUSPENSE_TYPE = hasSymbol ? Symbol.for('react.suspense') : 0xead1;
    var REACT_SUSPENSE_LIST_TYPE = hasSymbol ? Symbol.for('react.suspense_list') : 0xead8;
    var REACT_MEMO_TYPE = hasSymbol ? Symbol.for('react.memo') : 0xead3;
    var REACT_LAZY_TYPE = hasSymbol ? Symbol.for('react.lazy') : 0xead4;
    var REACT_FUNDAMENTAL_TYPE = hasSymbol ? Symbol.for('react.fundamental') : 0xead5;
    var REACT_RESPONDER_TYPE = hasSymbol ? Symbol.for('react.responder') : 0xead6;
    var REACT_SCOPE_TYPE = hasSymbol ? Symbol.for('react.scope') : 0xead7;
    var MAYBE_ITERATOR_SYMBOL = typeof Symbol === 'function' && Symbol.iterator;
    var FAUX_ITERATOR_SYMBOL = '@@iterator';
    function getIteratorFn(maybeIterable) {
      if (maybeIterable === null || typeof maybeIterable !== 'object') {
        return null;
      }
    
      var maybeIterator = MAYBE_ITERATOR_SYMBOL && maybeIterable[MAYBE_ITERATOR_SYMBOL] || maybeIterable[FAUX_ITERATOR_SYMBOL];
    
      if (typeof maybeIterator === 'function') {
        return maybeIterator;
      }
    
      return null;
    }
    
    // Do not require this module directly! Use normal `invariant` calls with
    // template literal strings. The messages will be converted to ReactError during
    // build, and in production they will be minified.
    
    // Do not require this module directly! Use normal `invariant` calls with
    // template literal strings. The messages will be converted to ReactError during
    // build, and in production they will be minified.
    function ReactError(error) {
      error.name = 'Invariant Violation';
      return error;
    }
    
    /**
     * Use invariant() to assert state which your program assumes to be true.
     *
     * Provide sprintf-style format (only %s is supported) and arguments
     * to provide information about what broke and what you were
     * expecting.
     *
     * The invariant message will be stripped in production, but the invariant
     * will remain to ensure logic does not differ in production.
     */
    
    /**
     * Forked from fbjs/warning:
     * https://github.com/facebook/fbjs/blob/e66ba20ad5be433eb54423f2b097d829324d9de6/packages/fbjs/src/__forks__/warning.js
     *
     * Only change is we use console.warn instead of console.error,
     * and do nothing when 'console' is not supported.
     * This really simplifies the code.
     * ---
     * Similar to invariant but only logs a warning if the condition is not met.
     * This can be used to log issues in development environments in critical
     * paths. Removing the logging code for production environments will keep the
     * same logic and follow the same code paths.
     */
    var lowPriorityWarningWithoutStack = function () {};
    
    {
      var printWarning = function (format) {
        for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
          args[_key - 1] = arguments[_key];
        }
    
        var argIndex = 0;
        var message = 'Warning: ' + format.replace(/%s/g, function () {
          return args[argIndex++];
        });
    
        if (typeof console !== 'undefined') {
          console.warn(message);
        }
    
        try {
          // --- Welcome to debugging React ---
          // This error was thrown as a convenience so that you can use this stack
          // to find the callsite that caused this warning to fire.
          throw new Error(message);
        } catch (x) {}
      };
    
      lowPriorityWarningWithoutStack = function (condition, format) {
        if (format === undefined) {
          throw new Error('`lowPriorityWarningWithoutStack(condition, format, ...args)` requires a warning ' + 'message argument');
        }
    
        if (!condition) {
          for (var _len2 = arguments.length, args = new Array(_len2 > 2 ? _len2 - 2 : 0), _key2 = 2; _key2 < _len2; _key2++) {
            args[_key2 - 2] = arguments[_key2];
          }
    
          printWarning.apply(void 0, [format].concat(args));
        }
      };
    }
    
    var lowPriorityWarningWithoutStack$1 = lowPriorityWarningWithoutStack;
    
    /**
     * Similar to invariant but only logs a warning if the condition is not met.
     * This can be used to log issues in development environments in critical
     * paths. Removing the logging code for production environments will keep the
     * same logic and follow the same code paths.
     */
    var warningWithoutStack = function () {};
    
    {
      warningWithoutStack = function (condition, format) {
        for (var _len = arguments.length, args = new Array(_len > 2 ? _len - 2 : 0), _key = 2; _key < _len; _key++) {
          args[_key - 2] = arguments[_key];
        }
    
        if (format === undefined) {
          throw new Error('`warningWithoutStack(condition, format, ...args)` requires a warning ' + 'message argument');
        }
    
        if (args.length > 8) {
          // Check before the condition to catch violations early.
          throw new Error('warningWithoutStack() currently supports at most 8 arguments.');
        }
    
        if (condition) {
          return;
        }
    
        if (typeof console !== 'undefined') {
          var argsWithFormat = args.map(function (item) {
            return '' + item;
          });
          argsWithFormat.unshift('Warning: ' + format); // We intentionally don't use spread (or .apply) directly because it
          // breaks IE9: https://github.com/facebook/react/issues/13610
    
          Function.prototype.apply.call(console.error, console, argsWithFormat);
        }
    
        try {
          // --- Welcome to debugging React ---
          // This error was thrown as a convenience so that you can use this stack
          // to find the callsite that caused this warning to fire.
          var argIndex = 0;
          var message = 'Warning: ' + format.replace(/%s/g, function () {
            return args[argIndex++];
          });
          throw new Error(message);
        } catch (x) {}
      };
    }
    
    var warningWithoutStack$1 = warningWithoutStack;
    
    var didWarnStateUpdateForUnmountedComponent = {};
    
    function warnNoop(publicInstance, callerName) {
      {
        var _constructor = publicInstance.constructor;
        var componentName = _constructor && (_constructor.displayName || _constructor.name) || 'ReactClass';
        var warningKey = componentName + "." + callerName;
    
        if (didWarnStateUpdateForUnmountedComponent[warningKey]) {
          return;
        }
    
        warningWithoutStack$1(false, "Can't call %s on a component that is not yet mounted. " + 'This is a no-op, but it might indicate a bug in your application. ' + 'Instead, assign to `this.state` directly or define a `state = {};` ' + 'class property with the desired state in the %s component.', callerName, componentName);
        didWarnStateUpdateForUnmountedComponent[warningKey] = true;
      }
    }
    /**
     * This is the abstract API for an update queue.
     */
    
    
    var ReactNoopUpdateQueue = {
      /**
       * Checks whether or not this composite component is mounted.
       * @param {ReactClass} publicInstance The instance we want to test.
       * @return {boolean} True if mounted, false otherwise.
       * @protected
       * @final
       */
      isMounted: function (publicInstance) {
        return false;
      },
    
      /**
       * Forces an update. This should only be invoked when it is known with
       * certainty that we are **not** in a DOM transaction.
       *
       * You may want to call this when you know that some deeper aspect of the
       * component's state has changed but `setState` was not called.
       *
       * This will not invoke `shouldComponentUpdate`, but it will invoke
       * `componentWillUpdate` and `componentDidUpdate`.
       *
       * @param {ReactClass} publicInstance The instance that should rerender.
       * @param {?function} callback Called after component is updated.
       * @param {?string} callerName name of the calling function in the public API.
       * @internal
       */
      enqueueForceUpdate: function (publicInstance, callback, callerName) {
        warnNoop(publicInstance, 'forceUpdate');
      },
    
      /**
       * Replaces all of the state. Always use this or `setState` to mutate state.
       * You should treat `this.state` as immutable.
       *
       * There is no guarantee that `this.state` will be immediately updated, so
       * accessing `this.state` after calling this method may return the old value.
       *
       * @param {ReactClass} publicInstance The instance that should rerender.
       * @param {object} completeState Next state.
       * @param {?function} callback Called after component is updated.
       * @param {?string} callerName name of the calling function in the public API.
       * @internal
       */
      enqueueReplaceState: function (publicInstance, completeState, callback, callerName) {
        warnNoop(publicInstance, 'replaceState');
      },
    
      /**
       * Sets a subset of the state. This only exists because _pendingState is
       * internal. This provides a merging strategy that is not available to deep
       * properties which is confusing. TODO: Expose pendingState or don't use it
       * during the merge.
       *
       * @param {ReactClass} publicInstance The instance that should rerender.
       * @param {object} partialState Next partial state to be merged with state.
       * @param {?function} callback Called after component is updated.
       * @param {?string} Name of the calling function in the public API.
       * @internal
       */
      enqueueSetState: function (publicInstance, partialState, callback, callerName) {
        warnNoop(publicInstance, 'setState');
      }
    };
    
    var emptyObject = {};
    
    {
      Object.freeze(emptyObject);
    }
    /**
     * Base class helpers for the updating state of a component.
     */
    
    
    function Component(props, context, updater) {
      this.props = props;
      this.context = context; // If a component has string refs, we will assign a different object later.
    
      this.refs = emptyObject; // We initialize the default updater but the real one gets injected by the
      // renderer.
    
      this.updater = updater || ReactNoopUpdateQueue;
    }
    
    Component.prototype.isReactComponent = {};
    /**
     * Sets a subset of the state. Always use this to mutate
     * state. You should treat `this.state` as immutable.
     *
     * There is no guarantee that `this.state` will be immediately updated, so
     * accessing `this.state` after calling this method may return the old value.
     *
     * There is no guarantee that calls to `setState` will run synchronously,
     * as they may eventually be batched together.  You can provide an optional
     * callback that will be executed when the call to setState is actually
     * completed.
     *
     * When a function is provided to setState, it will be called at some point in
     * the future (not synchronously). It will be called with the up to date
     * component arguments (state, props, context). These values can be different
     * from this.* because your function may be called after receiveProps but before
     * shouldComponentUpdate, and this new state, props, and context will not yet be
     * assigned to this.
     *
     * @param {object|function} partialState Next partial state or function to
     *        produce next partial state to be merged with current state.
     * @param {?function} callback Called after state is updated.
     * @final
     * @protected
     */
    
    Component.prototype.setState = function (partialState, callback) {
      (function () {
        if (!(typeof partialState === 'object' || typeof partialState === 'function' || partialState == null)) {
          {
            throw ReactError(Error("setState(...): takes an object of state variables to update or a function which returns an object of state variables."));
          }
        }
      })();
    
      this.updater.enqueueSetState(this, partialState, callback, 'setState');
    };
    /**
     * Forces an update. This should only be invoked when it is known with
     * certainty that we are **not** in a DOM transaction.
     *
     * You may want to call this when you know that some deeper aspect of the
     * component's state has changed but `setState` was not called.
     *
     * This will not invoke `shouldComponentUpdate`, but it will invoke
     * `componentWillUpdate` and `componentDidUpdate`.
     *
     * @param {?function} callback Called after update is complete.
     * @final
     * @protected
     */
    
    
    Component.prototype.forceUpdate = function (callback) {
      this.updater.enqueueForceUpdate(this, callback, 'forceUpdate');
    };
    /**
     * Deprecated APIs. These APIs used to exist on classic React classes but since
     * we would like to deprecate them, we're not going to move them over to this
     * modern base class. Instead, we define a getter that warns if it's accessed.
     */
    
    
    {
      var deprecatedAPIs = {
        isMounted: ['isMounted', 'Instead, make sure to clean up subscriptions and pending requests in ' + 'componentWillUnmount to prevent memory leaks.'],
        replaceState: ['replaceState', 'Refactor your code to use setState instead (see ' + 'https://github.com/facebook/react/issues/3236).']
      };
    
      var defineDeprecationWarning = function (methodName, info) {
        Object.defineProperty(Component.prototype, methodName, {
          get: function () {
            lowPriorityWarningWithoutStack$1(false, '%s(...) is deprecated in plain JavaScript React classes. %s', info[0], info[1]);
            return undefined;
          }
        });
      };
    
      for (var fnName in deprecatedAPIs) {
        if (deprecatedAPIs.hasOwnProperty(fnName)) {
          defineDeprecationWarning(fnName, deprecatedAPIs[fnName]);
        }
      }
    }
    
    function ComponentDummy() {}
    
    ComponentDummy.prototype = Component.prototype;
    /**
     * Convenience component with default shallow equality check for sCU.
     */
    
    function PureComponent(props, context, updater) {
      this.props = props;
      this.context = context; // If a component has string refs, we will assign a different object later.
    
      this.refs = emptyObject;
      this.updater = updater || ReactNoopUpdateQueue;
    }
    
    var pureComponentPrototype = PureComponent.prototype = new ComponentDummy();
    pureComponentPrototype.constructor = PureComponent; // Avoid an extra prototype jump for these methods.
    
    _assign(pureComponentPrototype, Component.prototype);
    
    pureComponentPrototype.isPureReactComponent = true;
    
    // an immutable object with a single mutable value
    function createRef() {
      var refObject = {
        current: null
      };
    
      {
        Object.seal(refObject);
      }
    
      return refObject;
    }
    
    /**
     * Keeps track of the current dispatcher.
     */
    var ReactCurrentDispatcher = {
      /**
       * @internal
       * @type {ReactComponent}
       */
      current: null
    };
    
    /**
     * Keeps track of the current batch's configuration such as how long an update
     * should suspend for if it needs to.
     */
    var ReactCurrentBatchConfig = {
      suspense: null
    };
    
    /**
     * Keeps track of the current owner.
     *
     * The current owner is the component who should own any components that are
     * currently being constructed.
     */
    var ReactCurrentOwner = {
      /**
       * @internal
       * @type {ReactComponent}
       */
      current: null
    };
    
    var BEFORE_SLASH_RE = /^(.*)[\\\/]/;
    var describeComponentFrame = function (name, source, ownerName) {
      var sourceInfo = '';
    
      if (source) {
        var path = source.fileName;
        var fileName = path.replace(BEFORE_SLASH_RE, '');
    
        {
          // In DEV, include code for a common special case:
          // prefer "folder/index.js" instead of just "index.js".
          if (/^index\./.test(fileName)) {
            var match = path.match(BEFORE_SLASH_RE);
    
            if (match) {
              var pathBeforeSlash = match[1];
    
              if (pathBeforeSlash) {
                var folderName = pathBeforeSlash.replace(BEFORE_SLASH_RE, '');
                fileName = folderName + '/' + fileName;
              }
            }
          }
        }
    
        sourceInfo = ' (at ' + fileName + ':' + source.lineNumber + ')';
      } else if (ownerName) {
        sourceInfo = ' (created by ' + ownerName + ')';
      }
    
      return '\n    in ' + (name || 'Unknown') + sourceInfo;
    };
    
    var Resolved = 1;
    
    function refineResolvedLazyComponent(lazyComponent) {
      return lazyComponent._status === Resolved ? lazyComponent._result : null;
    }
    
    function getWrappedName(outerType, innerType, wrapperName) {
      var functionName = innerType.displayName || innerType.name || '';
      return outerType.displayName || (functionName !== '' ? wrapperName + "(" + functionName + ")" : wrapperName);
    }
    
    function getComponentName(type) {
      if (type == null) {
        // Host root, text node or just invalid type.
        return null;
      }
    
      {
        if (typeof type.tag === 'number') {
          warningWithoutStack$1(false, 'Received an unexpected object in getComponentName(). ' + 'This is likely a bug in React. Please file an issue.');
        }
      }
    
      if (typeof type === 'function') {
        return type.displayName || type.name || null;
      }
    
      if (typeof type === 'string') {
        return type;
      }
    
      switch (type) {
        case REACT_FRAGMENT_TYPE:
          return 'Fragment';
    
        case REACT_PORTAL_TYPE:
          return 'Portal';
    
        case REACT_PROFILER_TYPE:
          return "Profiler";
    
        case REACT_STRICT_MODE_TYPE:
          return 'StrictMode';
    
        case REACT_SUSPENSE_TYPE:
          return 'Suspense';
    
        case REACT_SUSPENSE_LIST_TYPE:
          return 'SuspenseList';
      }
    
      if (typeof type === 'object') {
        switch (type.$$typeof) {
          case REACT_CONTEXT_TYPE:
            return 'Context.Consumer';
    
          case REACT_PROVIDER_TYPE:
            return 'Context.Provider';
    
          case REACT_FORWARD_REF_TYPE:
            return getWrappedName(type, type.render, 'ForwardRef');
    
          case REACT_MEMO_TYPE:
            return getComponentName(type.type);
    
          case REACT_LAZY_TYPE:
            {
              var thenable = type;
              var resolvedThenable = refineResolvedLazyComponent(thenable);
    
              if (resolvedThenable) {
                return getComponentName(resolvedThenable);
              }
    
              break;
            }
        }
      }
    
      return null;
    }
    
    var ReactDebugCurrentFrame = {};
    var currentlyValidatingElement = null;
    function setCurrentlyValidatingElement(element) {
      {
        currentlyValidatingElement = element;
      }
    }
    
    {
      // Stack implementation injected by the current renderer.
      ReactDebugCurrentFrame.getCurrentStack = null;
    
      ReactDebugCurrentFrame.getStackAddendum = function () {
        var stack = ''; // Add an extra top frame while an element is being validated
    
        if (currentlyValidatingElement) {
          var name = getComponentName(currentlyValidatingElement.type);
          var owner = currentlyValidatingElement._owner;
          stack += describeComponentFrame(name, currentlyValidatingElement._source, owner && getComponentName(owner.type));
        } // Delegate to the injected renderer-specific implementation
    
    
        var impl = ReactDebugCurrentFrame.getCurrentStack;
    
        if (impl) {
          stack += impl() || '';
        }
    
        return stack;
      };
    }
    
    /**
     * Used by act() to track whether you're inside an act() scope.
     */
    var IsSomeRendererActing = {
      current: false
    };
    
    var ReactSharedInternals = {
      ReactCurrentDispatcher: ReactCurrentDispatcher,
      ReactCurrentBatchConfig: ReactCurrentBatchConfig,
      ReactCurrentOwner: ReactCurrentOwner,
      IsSomeRendererActing: IsSomeRendererActing,
      // Used by renderers to avoid bundling object-assign twice in UMD bundles:
      assign: _assign
    };
    
    {
      _assign(ReactSharedInternals, {
        // These should not be included in production.
        ReactDebugCurrentFrame: ReactDebugCurrentFrame,
        // Shim for React DOM 16.0.0 which still destructured (but not used) this.
        // TODO: remove in React 17.0.
        ReactComponentTreeHook: {}
      });
    }
    
    /**
     * Similar to invariant but only logs a warning if the condition is not met.
     * This can be used to log issues in development environments in critical
     * paths. Removing the logging code for production environments will keep the
     * same logic and follow the same code paths.
     */
    
    var warning = warningWithoutStack$1;
    
    {
      warning = function (condition, format) {
        if (condition) {
          return;
        }
    
        var ReactDebugCurrentFrame = ReactSharedInternals.ReactDebugCurrentFrame;
        var stack = ReactDebugCurrentFrame.getStackAddendum(); // eslint-disable-next-line react-internal/warning-and-invariant-args
    
        for (var _len = arguments.length, args = new Array(_len > 2 ? _len - 2 : 0), _key = 2; _key < _len; _key++) {
          args[_key - 2] = arguments[_key];
        }
    
        warningWithoutStack$1.apply(void 0, [false, format + '%s'].concat(args, [stack]));
      };
    }
    
    var warning$1 = warning;
    
    var hasOwnProperty = Object.prototype.hasOwnProperty;
    var RESERVED_PROPS = {
      key: true,
      ref: true,
      __self: true,
      __source: true
    };
    var specialPropKeyWarningShown;
    var specialPropRefWarningShown;
    
    function hasValidRef(config) {
      {
        if (hasOwnProperty.call(config, 'ref')) {
          var getter = Object.getOwnPropertyDescriptor(config, 'ref').get;
    
          if (getter && getter.isReactWarning) {
            return false;
          }
        }
      }
    
      return config.ref !== undefined;
    }
    
    function hasValidKey(config) {
      {
        if (hasOwnProperty.call(config, 'key')) {
          var getter = Object.getOwnPropertyDescriptor(config, 'key').get;
    
          if (getter && getter.isReactWarning) {
            return false;
          }
        }
      }
    
      return config.key !== undefined;
    }
    
    function defineKeyPropWarningGetter(props, displayName) {
      var warnAboutAccessingKey = function () {
        if (!specialPropKeyWarningShown) {
          specialPropKeyWarningShown = true;
          warningWithoutStack$1(false, '%s: `key` is not a prop. Trying to access it will result ' + 'in `undefined` being returned. If you need to access the same ' + 'value within the child component, you should pass it as a different ' + 'prop. (https://fb.me/react-special-props)', displayName);
        }
      };
    
      warnAboutAccessingKey.isReactWarning = true;
      Object.defineProperty(props, 'key', {
        get: warnAboutAccessingKey,
        configurable: true
      });
    }
    
    function defineRefPropWarningGetter(props, displayName) {
      var warnAboutAccessingRef = function () {
        if (!specialPropRefWarningShown) {
          specialPropRefWarningShown = true;
          warningWithoutStack$1(false, '%s: `ref` is not a prop. Trying to access it will result ' + 'in `undefined` being returned. If you need to access the same ' + 'value within the child component, you should pass it as a different ' + 'prop. (https://fb.me/react-special-props)', displayName);
        }
      };
    
      warnAboutAccessingRef.isReactWarning = true;
      Object.defineProperty(props, 'ref', {
        get: warnAboutAccessingRef,
        configurable: true
      });
    }
    /**
     * Factory method to create a new React element. This no longer adheres to
     * the class pattern, so do not use new to call it. Also, no instanceof check
     * will work. Instead test $$typeof field against Symbol.for('react.element') to check
     * if something is a React Element.
     *
     * @param {*} type
     * @param {*} props
     * @param {*} key
     * @param {string|object} ref
     * @param {*} owner
     * @param {*} self A *temporary* helper to detect places where `this` is
     * different from the `owner` when React.createElement is called, so that we
     * can warn. We want to get rid of owner and replace string `ref`s with arrow
     * functions, and as long as `this` and owner are the same, there will be no
     * change in behavior.
     * @param {*} source An annotation object (added by a transpiler or otherwise)
     * indicating filename, line number, and/or other information.
     * @internal
     */
    
    
    var ReactElement = function (type, key, ref, self, source, owner, props) {
      var element = {
        // This tag allows us to uniquely identify this as a React Element
        $$typeof: REACT_ELEMENT_TYPE,
        // Built-in properties that belong on the element
        type: type,
        key: key,
        ref: ref,
        props: props,
        // Record the component responsible for creating this element.
        _owner: owner
      };
    
      {
        // The validation flag is currently mutative. We put it on
        // an external backing store so that we can freeze the whole object.
        // This can be replaced with a WeakMap once they are implemented in
        // commonly used development environments.
        element._store = {}; // To make comparing ReactElements easier for testing purposes, we make
        // the validation flag non-enumerable (where possible, which should
        // include every environment we run tests in), so the test framework
        // ignores it.
    
        Object.defineProperty(element._store, 'validated', {
          configurable: false,
          enumerable: false,
          writable: true,
          value: false
        }); // self and source are DEV only properties.
    
        Object.defineProperty(element, '_self', {
          configurable: false,
          enumerable: false,
          writable: false,
          value: self
        }); // Two elements created in two different places should be considered
        // equal for testing purposes and therefore we hide it from enumeration.
    
        Object.defineProperty(element, '_source', {
          configurable: false,
          enumerable: false,
          writable: false,
          value: source
        });
    
        if (Object.freeze) {
          Object.freeze(element.props);
          Object.freeze(element);
        }
      }
    
      return element;
    };
    /**
     * https://github.com/reactjs/rfcs/pull/107
     * @param {*} type
     * @param {object} props
     * @param {string} key
     */
    
    
    
    /**
     * https://github.com/reactjs/rfcs/pull/107
     * @param {*} type
     * @param {object} props
     * @param {string} key
     */
    
    function jsxDEV(type, config, maybeKey, source, self) {
      var propName; // Reserved names are extracted
    
      var props = {};
      var key = null;
      var ref = null; // Currently, key can be spread in as a prop. This causes a potential
      // issue if key is also explicitly declared (ie. <div {...props} key="Hi" />
      // or <div key="Hi" {...props} /> ). We want to deprecate key spread,
      // but as an intermediary step, we will use jsxDEV for everything except
      // <div {...props} key="Hi" />, because we aren't currently able to tell if
      // key is explicitly declared to be undefined or not.
    
      if (maybeKey !== undefined) {
        key = '' + maybeKey;
      }
    
      if (hasValidKey(config)) {
        key = '' + config.key;
      }
    
      if (hasValidRef(config)) {
        ref = config.ref;
      } // Remaining properties are added to a new props object
    
    
      for (propName in config) {
        if (hasOwnProperty.call(config, propName) && !RESERVED_PROPS.hasOwnProperty(propName)) {
          props[propName] = config[propName];
        }
      } // Resolve default props
    
    
      if (type && type.defaultProps) {
        var defaultProps = type.defaultProps;
    
        for (propName in defaultProps) {
          if (props[propName] === undefined) {
            props[propName] = defaultProps[propName];
          }
        }
      }
    
      if (key || ref) {
        var displayName = typeof type === 'function' ? type.displayName || type.name || 'Unknown' : type;
    
        if (key) {
          defineKeyPropWarningGetter(props, displayName);
        }
    
        if (ref) {
          defineRefPropWarningGetter(props, displayName);
        }
      }
    
      return ReactElement(type, key, ref, self, source, ReactCurrentOwner.current, props);
    }
    /**
     * Create and return a new ReactElement of the given type.
     * See https://reactjs.org/docs/react-api.html#createelement
     */
    
    function createElement(type, config, children) {
      var propName; // Reserved names are extracted
    
      var props = {};
      var key = null;
      var ref = null;
      var self = null;
      var source = null;
    
      if (config != null) {
        if (hasValidRef(config)) {
          ref = config.ref;
        }
    
        if (hasValidKey(config)) {
          key = '' + config.key;
        }
    
        self = config.__self === undefined ? null : config.__self;
        source = config.__source === undefined ? null : config.__source; // Remaining properties are added to a new props object
    
        for (propName in config) {
          if (hasOwnProperty.call(config, propName) && !RESERVED_PROPS.hasOwnProperty(propName)) {
            props[propName] = config[propName];
          }
        }
      } // Children can be more than one argument, and those are transferred onto
      // the newly allocated props object.
    
    
      var childrenLength = arguments.length - 2;
    
      if (childrenLength === 1) {
        props.children = children;
      } else if (childrenLength > 1) {
        var childArray = Array(childrenLength);
    
        for (var i = 0; i < childrenLength; i++) {
          childArray[i] = arguments[i + 2];
        }
    
        {
          if (Object.freeze) {
            Object.freeze(childArray);
          }
        }
    
        props.children = childArray;
      } // Resolve default props
    
    
      if (type && type.defaultProps) {
        var defaultProps = type.defaultProps;
    
        for (propName in defaultProps) {
          if (props[propName] === undefined) {
            props[propName] = defaultProps[propName];
          }
        }
      }
    
      {
        if (key || ref) {
          var displayName = typeof type === 'function' ? type.displayName || type.name || 'Unknown' : type;
    
          if (key) {
            defineKeyPropWarningGetter(props, displayName);
          }
    
          if (ref) {
            defineRefPropWarningGetter(props, displayName);
          }
        }
      }
    
      return ReactElement(type, key, ref, self, source, ReactCurrentOwner.current, props);
    }
    /**
     * Return a function that produces ReactElements of a given type.
     * See https://reactjs.org/docs/react-api.html#createfactory
     */
    
    
    function cloneAndReplaceKey(oldElement, newKey) {
      var newElement = ReactElement(oldElement.type, newKey, oldElement.ref, oldElement._self, oldElement._source, oldElement._owner, oldElement.props);
      return newElement;
    }
    /**
     * Clone and return a new ReactElement using element as the starting point.
     * See https://reactjs.org/docs/react-api.html#cloneelement
     */
    
    function cloneElement(element, config, children) {
      (function () {
        if (!!(element === null || element === undefined)) {
          {
            throw ReactError(Error("React.cloneElement(...): The argument must be a React element, but you passed " + element + "."));
          }
        }
      })();
    
      var propName; // Original props are copied
    
      var props = _assign({}, element.props); // Reserved names are extracted
    
    
      var key = element.key;
      var ref = element.ref; // Self is preserved since the owner is preserved.
    
      var self = element._self; // Source is preserved since cloneElement is unlikely to be targeted by a
      // transpiler, and the original source is probably a better indicator of the
      // true owner.
    
      var source = element._source; // Owner will be preserved, unless ref is overridden
    
      var owner = element._owner;
    
      if (config != null) {
        if (hasValidRef(config)) {
          // Silently steal the ref from the parent.
          ref = config.ref;
          owner = ReactCurrentOwner.current;
        }
    
        if (hasValidKey(config)) {
          key = '' + config.key;
        } // Remaining properties override existing props
    
    
        var defaultProps;
    
        if (element.type && element.type.defaultProps) {
          defaultProps = element.type.defaultProps;
        }
    
        for (propName in config) {
          if (hasOwnProperty.call(config, propName) && !RESERVED_PROPS.hasOwnProperty(propName)) {
            if (config[propName] === undefined && defaultProps !== undefined) {
              // Resolve default props
              props[propName] = defaultProps[propName];
            } else {
              props[propName] = config[propName];
            }
          }
        }
      } // Children can be more than one argument, and those are transferred onto
      // the newly allocated props object.
    
    
      var childrenLength = arguments.length - 2;
    
      if (childrenLength === 1) {
        props.children = children;
      } else if (childrenLength > 1) {
        var childArray = Array(childrenLength);
    
        for (var i = 0; i < childrenLength; i++) {
          childArray[i] = arguments[i + 2];
        }
    
        props.children = childArray;
      }
    
      return ReactElement(element.type, key, ref, self, source, owner, props);
    }
    /**
     * Verifies the object is a ReactElement.
     * See https://reactjs.org/docs/react-api.html#isvalidelement
     * @param {?object} object
     * @return {boolean} True if `object` is a ReactElement.
     * @final
     */
    
    function isValidElement(object) {
      return typeof object === 'object' && object !== null && object.$$typeof === REACT_ELEMENT_TYPE;
    }
    
    var SEPARATOR = '.';
    var SUBSEPARATOR = ':';
    /**
     * Escape and wrap key so it is safe to use as a reactid
     *
     * @param {string} key to be escaped.
     * @return {string} the escaped key.
     */
    
    function escape(key) {
      var escapeRegex = /[=:]/g;
      var escaperLookup = {
        '=': '=0',
        ':': '=2'
      };
      var escapedString = ('' + key).replace(escapeRegex, function (match) {
        return escaperLookup[match];
      });
      return '$' + escapedString;
    }
    /**
     * TODO: Test that a single child and an array with one item have the same key
     * pattern.
     */
    
    
    var didWarnAboutMaps = false;
    var userProvidedKeyEscapeRegex = /\/+/g;
    
    function escapeUserProvidedKey(text) {
      return ('' + text).replace(userProvidedKeyEscapeRegex, '$&/');
    }
    
    var POOL_SIZE = 10;
    var traverseContextPool = [];
    
    function getPooledTraverseContext(mapResult, keyPrefix, mapFunction, mapContext) {
      if (traverseContextPool.length) {
        var traverseContext = traverseContextPool.pop();
        traverseContext.result = mapResult;
        traverseContext.keyPrefix = keyPrefix;
        traverseContext.func = mapFunction;
        traverseContext.context = mapContext;
        traverseContext.count = 0;
        return traverseContext;
      } else {
        return {
          result: mapResult,
          keyPrefix: keyPrefix,
          func: mapFunction,
          context: mapContext,
          count: 0
        };
      }
    }
    
    function releaseTraverseContext(traverseContext) {
      traverseContext.result = null;
      traverseContext.keyPrefix = null;
      traverseContext.func = null;
      traverseContext.context = null;
      traverseContext.count = 0;
    
      if (traverseContextPool.length < POOL_SIZE) {
        traverseContextPool.push(traverseContext);
      }
    }
    /**
     * @param {?*} children Children tree container.
     * @param {!string} nameSoFar Name of the key path so far.
     * @param {!function} callback Callback to invoke with each child found.
     * @param {?*} traverseContext Used to pass information throughout the traversal
     * process.
     * @return {!number} The number of children in this subtree.
     */
    
    
    function traverseAllChildrenImpl(children, nameSoFar, callback, traverseContext) {
      var type = typeof children;
    
      if (type === 'undefined' || type === 'boolean') {
        // All of the above are perceived as null.
        children = null;
      }
    
      var invokeCallback = false;
    
      if (children === null) {
        invokeCallback = true;
      } else {
        switch (type) {
          case 'string':
          case 'number':
            invokeCallback = true;
            break;
    
          case 'object':
            switch (children.$$typeof) {
              case REACT_ELEMENT_TYPE:
              case REACT_PORTAL_TYPE:
                invokeCallback = true;
            }
    
        }
      }
    
      if (invokeCallback) {
        callback(traverseContext, children, // If it's the only child, treat the name as if it was wrapped in an array
        // so that it's consistent if the number of children grows.
        nameSoFar === '' ? SEPARATOR + getComponentKey(children, 0) : nameSoFar);
        return 1;
      }
    
      var child;
      var nextName;
      var subtreeCount = 0; // Count of children found in the current subtree.
    
      var nextNamePrefix = nameSoFar === '' ? SEPARATOR : nameSoFar + SUBSEPARATOR;
    
      if (Array.isArray(children)) {
        for (var i = 0; i < children.length; i++) {
          child = children[i];
          nextName = nextNamePrefix + getComponentKey(child, i);
          subtreeCount += traverseAllChildrenImpl(child, nextName, callback, traverseContext);
        }
      } else {
        var iteratorFn = getIteratorFn(children);
    
        if (typeof iteratorFn === 'function') {
          {
            // Warn about using Maps as children
            if (iteratorFn === children.entries) {
              !didWarnAboutMaps ? warning$1(false, 'Using Maps as children is unsupported and will likely yield ' + 'unexpected results. Convert it to a sequence/iterable of keyed ' + 'ReactElements instead.') : void 0;
              didWarnAboutMaps = true;
            }
          }
    
          var iterator = iteratorFn.call(children);
          var step;
          var ii = 0;
    
          while (!(step = iterator.next()).done) {
            child = step.value;
            nextName = nextNamePrefix + getComponentKey(child, ii++);
            subtreeCount += traverseAllChildrenImpl(child, nextName, callback, traverseContext);
          }
        } else if (type === 'object') {
          var addendum = '';
    
          {
            addendum = ' If you meant to render a collection of children, use an array ' + 'instead.' + ReactDebugCurrentFrame.getStackAddendum();
          }
    
          var childrenString = '' + children;
    
          (function () {
            {
              {
                throw ReactError(Error("Objects are not valid as a React child (found: " + (childrenString === '[object Object]' ? 'object with keys {' + Object.keys(children).join(', ') + '}' : childrenString) + ")." + addendum));
              }
            }
          })();
        }
      }
    
      return subtreeCount;
    }
    /**
     * Traverses children that are typically specified as `props.children`, but
     * might also be specified through attributes:
     *
     * - `traverseAllChildren(this.props.children, ...)`
     * - `traverseAllChildren(this.props.leftPanelChildren, ...)`
     *
     * The `traverseContext` is an optional argument that is passed through the
     * entire traversal. It can be used to store accumulations or anything else that
     * the callback might find relevant.
     *
     * @param {?*} children Children tree object.
     * @param {!function} callback To invoke upon traversing each child.
     * @param {?*} traverseContext Context for traversal.
     * @return {!number} The number of children in this subtree.
     */
    
    
    function traverseAllChildren(children, callback, traverseContext) {
      if (children == null) {
        return 0;
      }
    
      return traverseAllChildrenImpl(children, '', callback, traverseContext);
    }
    /**
     * Generate a key string that identifies a component within a set.
     *
     * @param {*} component A component that could contain a manual key.
     * @param {number} index Index that is used if a manual key is not provided.
     * @return {string}
     */
    
    
    function getComponentKey(component, index) {
      // Do some typechecking here since we call this blindly. We want to ensure
      // that we don't block potential future ES APIs.
      if (typeof component === 'object' && component !== null && component.key != null) {
        // Explicit key
        return escape(component.key);
      } // Implicit key determined by the index in the set
    
    
      return index.toString(36);
    }
    
    function forEachSingleChild(bookKeeping, child, name) {
      var func = bookKeeping.func,
          context = bookKeeping.context;
      func.call(context, child, bookKeeping.count++);
    }
    /**
     * Iterates through children that are typically specified as `props.children`.
     *
     * See https://reactjs.org/docs/react-api.html#reactchildrenforeach
     *
     * The provided forEachFunc(child, index) will be called for each
     * leaf child.
     *
     * @param {?*} children Children tree container.
     * @param {function(*, int)} forEachFunc
     * @param {*} forEachContext Context for forEachContext.
     */
    
    
    function forEachChildren(children, forEachFunc, forEachContext) {
      if (children == null) {
        return children;
      }
    
      var traverseContext = getPooledTraverseContext(null, null, forEachFunc, forEachContext);
      traverseAllChildren(children, forEachSingleChild, traverseContext);
      releaseTraverseContext(traverseContext);
    }
    
    function mapSingleChildIntoContext(bookKeeping, child, childKey) {
      var result = bookKeeping.result,
          keyPrefix = bookKeeping.keyPrefix,
          func = bookKeeping.func,
          context = bookKeeping.context;
      var mappedChild = func.call(context, child, bookKeeping.count++);
    
      if (Array.isArray(mappedChild)) {
        mapIntoWithKeyPrefixInternal(mappedChild, result, childKey, function (c) {
          return c;
        });
      } else if (mappedChild != null) {
        if (isValidElement(mappedChild)) {
          mappedChild = cloneAndReplaceKey(mappedChild, // Keep both the (mapped) and old keys if they differ, just as
          // traverseAllChildren used to do for objects as children
          keyPrefix + (mappedChild.key && (!child || child.key !== mappedChild.key) ? escapeUserProvidedKey(mappedChild.key) + '/' : '') + childKey);
        }
    
        result.push(mappedChild);
      }
    }
    
    function mapIntoWithKeyPrefixInternal(children, array, prefix, func, context) {
      var escapedPrefix = '';
    
      if (prefix != null) {
        escapedPrefix = escapeUserProvidedKey(prefix) + '/';
      }
    
      var traverseContext = getPooledTraverseContext(array, escapedPrefix, func, context);
      traverseAllChildren(children, mapSingleChildIntoContext, traverseContext);
      releaseTraverseContext(traverseContext);
    }
    /**
     * Maps children that are typically specified as `props.children`.
     *
     * See https://reactjs.org/docs/react-api.html#reactchildrenmap
     *
     * The provided mapFunction(child, key, index) will be called for each
     * leaf child.
     *
     * @param {?*} children Children tree container.
     * @param {function(*, int)} func The map function.
     * @param {*} context Context for mapFunction.
     * @return {object} Object containing the ordered map of results.
     */
    
    
    function mapChildren(children, func, context) {
      if (children == null) {
        return children;
      }
    
      var result = [];
      mapIntoWithKeyPrefixInternal(children, result, null, func, context);
      return result;
    }
    /**
     * Count the number of children that are typically specified as
     * `props.children`.
     *
     * See https://reactjs.org/docs/react-api.html#reactchildrencount
     *
     * @param {?*} children Children tree container.
     * @return {number} The number of children.
     */
    
    
    function countChildren(children) {
      return traverseAllChildren(children, function () {
        return null;
      }, null);
    }
    /**
     * Flatten a children object (typically specified as `props.children`) and
     * return an array with appropriately re-keyed children.
     *
     * See https://reactjs.org/docs/react-api.html#reactchildrentoarray
     */
    
    
    function toArray(children) {
      var result = [];
      mapIntoWithKeyPrefixInternal(children, result, null, function (child) {
        return child;
      });
      return result;
    }
    /**
     * Returns the first child in a collection of children and verifies that there
     * is only one child in the collection.
     *
     * See https://reactjs.org/docs/react-api.html#reactchildrenonly
     *
     * The current implementation of this function assumes that a single child gets
     * passed without a wrapper, but the purpose of this helper function is to
     * abstract away the particular structure of children.
     *
     * @param {?object} children Child collection structure.
     * @return {ReactElement} The first and only `ReactElement` contained in the
     * structure.
     */
    
    
    function onlyChild(children) {
      (function () {
        if (!isValidElement(children)) {
          {
            throw ReactError(Error("React.Children.only expected to receive a single React element child."));
          }
        }
      })();
    
      return children;
    }
    
    function createContext(defaultValue, calculateChangedBits) {
      if (calculateChangedBits === undefined) {
        calculateChangedBits = null;
      } else {
        {
          !(calculateChangedBits === null || typeof calculateChangedBits === 'function') ? warningWithoutStack$1(false, 'createContext: Expected the optional second argument to be a ' + 'function. Instead received: %s', calculateChangedBits) : void 0;
        }
      }
    
      var context = {
        $$typeof: REACT_CONTEXT_TYPE,
        _calculateChangedBits: calculateChangedBits,
        // As a workaround to support multiple concurrent renderers, we categorize
        // some renderers as primary and others as secondary. We only expect
        // there to be two concurrent renderers at most: React Native (primary) and
        // Fabric (secondary); React DOM (primary) and React ART (secondary).
        // Secondary renderers store their context values on separate fields.
        _currentValue: defaultValue,
        _currentValue2: defaultValue,
        // Used to track how many concurrent renderers this context currently
        // supports within in a single renderer. Such as parallel server rendering.
        _threadCount: 0,
        // These are circular
        Provider: null,
        Consumer: null
      };
      context.Provider = {
        $$typeof: REACT_PROVIDER_TYPE,
        _context: context
      };
      var hasWarnedAboutUsingNestedContextConsumers = false;
      var hasWarnedAboutUsingConsumerProvider = false;
    
      {
        // A separate object, but proxies back to the original context object for
        // backwards compatibility. It has a different $$typeof, so we can properly
        // warn for the incorrect usage of Context as a Consumer.
        var Consumer = {
          $$typeof: REACT_CONTEXT_TYPE,
          _context: context,
          _calculateChangedBits: context._calculateChangedBits
        }; // $FlowFixMe: Flow complains about not setting a value, which is intentional here
    
        Object.defineProperties(Consumer, {
          Provider: {
            get: function () {
              if (!hasWarnedAboutUsingConsumerProvider) {
                hasWarnedAboutUsingConsumerProvider = true;
                warning$1(false, 'Rendering <Context.Consumer.Provider> is not supported and will be removed in ' + 'a future major release. Did you mean to render <Context.Provider> instead?');
              }
    
              return context.Provider;
            },
            set: function (_Provider) {
              context.Provider = _Provider;
            }
          },
          _currentValue: {
            get: function () {
              return context._currentValue;
            },
            set: function (_currentValue) {
              context._currentValue = _currentValue;
            }
          },
          _currentValue2: {
            get: function () {
              return context._currentValue2;
            },
            set: function (_currentValue2) {
              context._currentValue2 = _currentValue2;
            }
          },
          _threadCount: {
            get: function () {
              return context._threadCount;
            },
            set: function (_threadCount) {
              context._threadCount = _threadCount;
            }
          },
          Consumer: {
            get: function () {
              if (!hasWarnedAboutUsingNestedContextConsumers) {
                hasWarnedAboutUsingNestedContextConsumers = true;
                warning$1(false, 'Rendering <Context.Consumer.Consumer> is not supported and will be removed in ' + 'a future major release. Did you mean to render <Context.Consumer> instead?');
              }
    
              return context.Consumer;
            }
          }
        }); // $FlowFixMe: Flow complains about missing properties because it doesn't understand defineProperty
    
        context.Consumer = Consumer;
      }
    
      {
        context._currentRenderer = null;
        context._currentRenderer2 = null;
      }
    
      return context;
    }
    
    function lazy(ctor) {
      var lazyType = {
        $$typeof: REACT_LAZY_TYPE,
        _ctor: ctor,
        // React uses these fields to store the result.
        _status: -1,
        _result: null
      };
    
      {
        // In production, this would just set it on the object.
        var defaultProps;
        var propTypes;
        Object.defineProperties(lazyType, {
          defaultProps: {
            configurable: true,
            get: function () {
              return defaultProps;
            },
            set: function (newDefaultProps) {
              warning$1(false, 'React.lazy(...): It is not supported to assign `defaultProps` to ' + 'a lazy component import. Either specify them where the component ' + 'is defined, or create a wrapping component around it.');
              defaultProps = newDefaultProps; // Match production behavior more closely:
    
              Object.defineProperty(lazyType, 'defaultProps', {
                enumerable: true
              });
            }
          },
          propTypes: {
            configurable: true,
            get: function () {
              return propTypes;
            },
            set: function (newPropTypes) {
              warning$1(false, 'React.lazy(...): It is not supported to assign `propTypes` to ' + 'a lazy component import. Either specify them where the component ' + 'is defined, or create a wrapping component around it.');
              propTypes = newPropTypes; // Match production behavior more closely:
    
              Object.defineProperty(lazyType, 'propTypes', {
                enumerable: true
              });
            }
          }
        });
      }
    
      return lazyType;
    }
    
    function forwardRef(render) {
      {
        if (render != null && render.$$typeof === REACT_MEMO_TYPE) {
          warningWithoutStack$1(false, 'forwardRef requires a render function but received a `memo` ' + 'component. Instead of forwardRef(memo(...)), use ' + 'memo(forwardRef(...)).');
        } else if (typeof render !== 'function') {
          warningWithoutStack$1(false, 'forwardRef requires a render function but was given %s.', render === null ? 'null' : typeof render);
        } else {
          !( // Do not warn for 0 arguments because it could be due to usage of the 'arguments' object
          render.length === 0 || render.length === 2) ? warningWithoutStack$1(false, 'forwardRef render functions accept exactly two parameters: props and ref. %s', render.length === 1 ? 'Did you forget to use the ref parameter?' : 'Any additional parameter will be undefined.') : void 0;
        }
    
        if (render != null) {
          !(render.defaultProps == null && render.propTypes == null) ? warningWithoutStack$1(false, 'forwardRef render functions do not support propTypes or defaultProps. ' + 'Did you accidentally pass a React component?') : void 0;
        }
      }
    
      return {
        $$typeof: REACT_FORWARD_REF_TYPE,
        render: render
      };
    }
    
    function isValidElementType(type) {
      return typeof type === 'string' || typeof type === 'function' || // Note: its typeof might be other than 'symbol' or 'number' if it's a polyfill.
      type === REACT_FRAGMENT_TYPE || type === REACT_CONCURRENT_MODE_TYPE || type === REACT_PROFILER_TYPE || type === REACT_STRICT_MODE_TYPE || type === REACT_SUSPENSE_TYPE || type === REACT_SUSPENSE_LIST_TYPE || typeof type === 'object' && type !== null && (type.$$typeof === REACT_LAZY_TYPE || type.$$typeof === REACT_MEMO_TYPE || type.$$typeof === REACT_PROVIDER_TYPE || type.$$typeof === REACT_CONTEXT_TYPE || type.$$typeof === REACT_FORWARD_REF_TYPE || type.$$typeof === REACT_FUNDAMENTAL_TYPE || type.$$typeof === REACT_RESPONDER_TYPE || type.$$typeof === REACT_SCOPE_TYPE);
    }
    
    function memo(type, compare) {
      {
        if (!isValidElementType(type)) {
          warningWithoutStack$1(false, 'memo: The first argument must be a component. Instead ' + 'received: %s', type === null ? 'null' : typeof type);
        }
      }
    
      return {
        $$typeof: REACT_MEMO_TYPE,
        type: type,
        compare: compare === undefined ? null : compare
      };
    }
    
    function resolveDispatcher() {
      var dispatcher = ReactCurrentDispatcher.current;
    
      (function () {
        if (!(dispatcher !== null)) {
          {
            throw ReactError(Error("Invalid hook call. Hooks can only be called inside of the body of a function component. This could happen for one of the following reasons:\n1. You might have mismatching versions of React and the renderer (such as React DOM)\n2. You might be breaking the Rules of Hooks\n3. You might have more than one copy of React in the same app\nSee https://fb.me/react-invalid-hook-call for tips about how to debug and fix this problem."));
          }
        }
      })();
    
      return dispatcher;
    }
    
    function useContext(Context, unstable_observedBits) {
      var dispatcher = resolveDispatcher();
    
      {
        !(unstable_observedBits === undefined) ? warning$1(false, 'useContext() second argument is reserved for future ' + 'use in React. Passing it is not supported. ' + 'You passed: %s.%s', unstable_observedBits, typeof unstable_observedBits === 'number' && Array.isArray(arguments[2]) ? '\n\nDid you call array.map(useContext)? ' + 'Calling Hooks inside a loop is not supported. ' + 'Learn more at https://fb.me/rules-of-hooks' : '') : void 0; // TODO: add a more generic warning for invalid values.
    
        if (Context._context !== undefined) {
          var realContext = Context._context; // Don't deduplicate because this legitimately causes bugs
          // and nobody should be using this in existing code.
    
          if (realContext.Consumer === Context) {
            warning$1(false, 'Calling useContext(Context.Consumer) is not supported, may cause bugs, and will be ' + 'removed in a future major release. Did you mean to call useContext(Context) instead?');
          } else if (realContext.Provider === Context) {
            warning$1(false, 'Calling useContext(Context.Provider) is not supported. ' + 'Did you mean to call useContext(Context) instead?');
          }
        }
      }
    
      return dispatcher.useContext(Context, unstable_observedBits);
    }
    function useState(initialState) {
      var dispatcher = resolveDispatcher();
      return dispatcher.useState(initialState);
    }
    function useReducer(reducer, initialArg, init) {
      var dispatcher = resolveDispatcher();
      return dispatcher.useReducer(reducer, initialArg, init);
    }
    function useRef(initialValue) {
      var dispatcher = resolveDispatcher();
      return dispatcher.useRef(initialValue);
    }
    function useEffect(create, inputs) {
      var dispatcher = resolveDispatcher();
      return dispatcher.useEffect(create, inputs);
    }
    function useLayoutEffect(create, inputs) {
      var dispatcher = resolveDispatcher();
      return dispatcher.useLayoutEffect(create, inputs);
    }
    function useCallback(callback, inputs) {
      var dispatcher = resolveDispatcher();
      return dispatcher.useCallback(callback, inputs);
    }
    function useMemo(create, inputs) {
      var dispatcher = resolveDispatcher();
      return dispatcher.useMemo(create, inputs);
    }
    function useImperativeHandle(ref, create, inputs) {
      var dispatcher = resolveDispatcher();
      return dispatcher.useImperativeHandle(ref, create, inputs);
    }
    function useDebugValue(value, formatterFn) {
      {
        var dispatcher = resolveDispatcher();
        return dispatcher.useDebugValue(value, formatterFn);
      }
    }
    var emptyObject$1 = {};
    function useResponder(responder, listenerProps) {
      var dispatcher = resolveDispatcher();
    
      {
        if (responder == null || responder.$$typeof !== REACT_RESPONDER_TYPE) {
          warning$1(false, 'useResponder: invalid first argument. Expected an event responder, but instead got %s', responder);
          return;
        }
      }
    
      return dispatcher.useResponder(responder, listenerProps || emptyObject$1);
    }
    
    function withSuspenseConfig(scope, config) {
      var previousConfig = ReactCurrentBatchConfig.suspense;
      ReactCurrentBatchConfig.suspense = config === undefined ? null : config;
    
      try {
        scope();
      } finally {
        ReactCurrentBatchConfig.suspense = previousConfig;
      }
    }
    
    /**
     * ReactElementValidator provides a wrapper around a element factory
     * which validates the props passed to the element. This is intended to be
     * used only in DEV and could be replaced by a static type checker for languages
     * that support it.
     */
    var propTypesMisspellWarningShown;
    
    {
      propTypesMisspellWarningShown = false;
    }
    
    var hasOwnProperty$1 = Object.prototype.hasOwnProperty;
    
    function getDeclarationErrorAddendum() {
      if (ReactCurrentOwner.current) {
        var name = getComponentName(ReactCurrentOwner.current.type);
    
        if (name) {
          return '\n\nCheck the render method of `' + name + '`.';
        }
      }
    
      return '';
    }
    
    function getSourceInfoErrorAddendum(source) {
      if (source !== undefined) {
        var fileName = source.fileName.replace(/^.*[\\\/]/, '');
        var lineNumber = source.lineNumber;
        return '\n\nCheck your code at ' + fileName + ':' + lineNumber + '.';
      }
    
      return '';
    }
    
    function getSourceInfoErrorAddendumForProps(elementProps) {
      if (elementProps !== null && elementProps !== undefined) {
        return getSourceInfoErrorAddendum(elementProps.__source);
      }
    
      return '';
    }
    /**
     * Warn if there's no key explicitly set on dynamic arrays of children or
     * object keys are not valid. This allows us to keep track of children between
     * updates.
     */
    
    
    var ownerHasKeyUseWarning = {};
    
    function getCurrentComponentErrorInfo(parentType) {
      var info = getDeclarationErrorAddendum();
    
      if (!info) {
        var parentName = typeof parentType === 'string' ? parentType : parentType.displayName || parentType.name;
    
        if (parentName) {
          info = "\n\nCheck the top-level render call using <" + parentName + ">.";
        }
      }
    
      return info;
    }
    /**
     * Warn if the element doesn't have an explicit key assigned to it.
     * This element is in an array. The array could grow and shrink or be
     * reordered. All children that haven't already been validated are required to
     * have a "key" property assigned to it. Error statuses are cached so a warning
     * will only be shown once.
     *
     * @internal
     * @param {ReactElement} element Element that requires a key.
     * @param {*} parentType element's parent's type.
     */
    
    
    function validateExplicitKey(element, parentType) {
      if (!element._store || element._store.validated || element.key != null) {
        return;
      }
    
      element._store.validated = true;
      var currentComponentErrorInfo = getCurrentComponentErrorInfo(parentType);
    
      if (ownerHasKeyUseWarning[currentComponentErrorInfo]) {
        return;
      }
    
      ownerHasKeyUseWarning[currentComponentErrorInfo] = true; // Usually the current owner is the offender, but if it accepts children as a
      // property, it may be the creator of the child that's responsible for
      // assigning it a key.
    
      var childOwner = '';
    
      if (element && element._owner && element._owner !== ReactCurrentOwner.current) {
        // Give the component that originally created this child.
        childOwner = " It was passed a child from " + getComponentName(element._owner.type) + ".";
      }
    
      setCurrentlyValidatingElement(element);
    
      {
        warning$1(false, 'Each child in a list should have a unique "key" prop.' + '%s%s See https://fb.me/react-warning-keys for more information.', currentComponentErrorInfo, childOwner);
      }
    
      setCurrentlyValidatingElement(null);
    }
    /**
     * Ensure that every element either is passed in a static location, in an
     * array with an explicit keys property defined, or in an object literal
     * with valid key property.
     *
     * @internal
     * @param {ReactNode} node Statically passed child of any type.
     * @param {*} parentType node's parent's type.
     */
    
    
    function validateChildKeys(node, parentType) {
      if (typeof node !== 'object') {
        return;
      }
    
      if (Array.isArray(node)) {
        for (var i = 0; i < node.length; i++) {
          var child = node[i];
    
          if (isValidElement(child)) {
            validateExplicitKey(child, parentType);
          }
        }
      } else if (isValidElement(node)) {
        // This element was passed in a valid location.
        if (node._store) {
          node._store.validated = true;
        }
      } else if (node) {
        var iteratorFn = getIteratorFn(node);
    
        if (typeof iteratorFn === 'function') {
          // Entry iterators used to provide implicit keys,
          // but now we print a separate warning for them later.
          if (iteratorFn !== node.entries) {
            var iterator = iteratorFn.call(node);
            var step;
    
            while (!(step = iterator.next()).done) {
              if (isValidElement(step.value)) {
                validateExplicitKey(step.value, parentType);
              }
            }
          }
        }
      }
    }
    /**
     * Given an element, validate that its props follow the propTypes definition,
     * provided by the type.
     *
     * @param {ReactElement} element
     */
    
    
    function validatePropTypes(element) {
      var type = element.type;
    
      if (type === null || type === undefined || typeof type === 'string') {
        return;
      }
    
      var name = getComponentName(type);
      var propTypes;
    
      if (typeof type === 'function') {
        propTypes = type.propTypes;
      } else if (typeof type === 'object' && (type.$$typeof === REACT_FORWARD_REF_TYPE || // Note: Memo only checks outer props here.
      // Inner props are checked in the reconciler.
      type.$$typeof === REACT_MEMO_TYPE)) {
        propTypes = type.propTypes;
      } else {
        return;
      }
    
      if (propTypes) {
        setCurrentlyValidatingElement(element);
        checkPropTypes(propTypes, element.props, 'prop', name, ReactDebugCurrentFrame.getStackAddendum);
        setCurrentlyValidatingElement(null);
      } else if (type.PropTypes !== undefined && !propTypesMisspellWarningShown) {
        propTypesMisspellWarningShown = true;
        warningWithoutStack$1(false, 'Component %s declared `PropTypes` instead of `propTypes`. Did you misspell the property assignment?', name || 'Unknown');
      }
    
      if (typeof type.getDefaultProps === 'function') {
        !type.getDefaultProps.isReactClassApproved ? warningWithoutStack$1(false, 'getDefaultProps is only used on classic React.createClass ' + 'definitions. Use a static property named `defaultProps` instead.') : void 0;
      }
    }
    /**
     * Given a fragment, validate that it can only be provided with fragment props
     * @param {ReactElement} fragment
     */
    
    
    function validateFragmentProps(fragment) {
      setCurrentlyValidatingElement(fragment);
      var keys = Object.keys(fragment.props);
    
      for (var i = 0; i < keys.length; i++) {
        var key = keys[i];
    
        if (key !== 'children' && key !== 'key') {
          warning$1(false, 'Invalid prop `%s` supplied to `React.Fragment`. ' + 'React.Fragment can only have `key` and `children` props.', key);
          break;
        }
      }
    
      if (fragment.ref !== null) {
        warning$1(false, 'Invalid attribute `ref` supplied to `React.Fragment`.');
      }
    
      setCurrentlyValidatingElement(null);
    }
    
    function jsxWithValidation(type, props, key, isStaticChildren, source, self) {
      var validType = isValidElementType(type); // We warn in this case but don't throw. We expect the element creation to
      // succeed and there will likely be errors in render.
    
      if (!validType) {
        var info = '';
    
        if (type === undefined || typeof type === 'object' && type !== null && Object.keys(type).length === 0) {
          info += ' You likely forgot to export your component from the file ' + "it's defined in, or you might have mixed up default and named imports.";
        }
    
        var sourceInfo = getSourceInfoErrorAddendum(source);
    
        if (sourceInfo) {
          info += sourceInfo;
        } else {
          info += getDeclarationErrorAddendum();
        }
    
        var typeString;
    
        if (type === null) {
          typeString = 'null';
        } else if (Array.isArray(type)) {
          typeString = 'array';
        } else if (type !== undefined && type.$$typeof === REACT_ELEMENT_TYPE) {
          typeString = "<" + (getComponentName(type.type) || 'Unknown') + " />";
          info = ' Did you accidentally export a JSX literal instead of a component?';
        } else {
          typeString = typeof type;
        }
    
        warning$1(false, 'React.jsx: type is invalid -- expected a string (for ' + 'built-in components) or a class/function (for composite ' + 'components) but got: %s.%s', typeString, info);
      }
    
      var element = jsxDEV(type, props, key, source, self); // The result can be nullish if a mock or a custom function is used.
      // TODO: Drop this when these are no longer allowed as the type argument.
    
      if (element == null) {
        return element;
      } // Skip key warning if the type isn't valid since our key validation logic
      // doesn't expect a non-string/function type and can throw confusing errors.
      // We don't want exception behavior to differ between dev and prod.
      // (Rendering will throw with a helpful message and as soon as the type is
      // fixed, the key warnings will appear.)
    
    
      if (validType) {
        var children = props.children;
    
        if (children !== undefined) {
          if (isStaticChildren) {
            if (Array.isArray(children)) {
              for (var i = 0; i < children.length; i++) {
                validateChildKeys(children[i], type);
              }
    
              if (Object.freeze) {
                Object.freeze(children);
              }
            } else {
              warning$1(false, 'React.jsx: Static children should always be an array. ' + 'You are likely explicitly calling React.jsxs or React.jsxDEV. ' + 'Use the Babel transform instead.');
            }
          } else {
            validateChildKeys(children, type);
          }
        }
      }
    
      if (hasOwnProperty$1.call(props, 'key')) {
        warning$1(false, 'React.jsx: Spreading a key to JSX is a deprecated pattern. ' + 'Explicitly pass a key after spreading props in your JSX call. ' + 'E.g. <ComponentName {...props} key={key} />');
      }
    
      if (type === REACT_FRAGMENT_TYPE) {
        validateFragmentProps(element);
      } else {
        validatePropTypes(element);
      }
    
      return element;
    } // These two functions exist to still get child warnings in dev
    // even with the prod transform. This means that jsxDEV is purely
    // opt-in behavior for better messages but that we won't stop
    // giving you warnings if you use production apis.
    
    function jsxWithValidationStatic(type, props, key) {
      return jsxWithValidation(type, props, key, true);
    }
    function jsxWithValidationDynamic(type, props, key) {
      return jsxWithValidation(type, props, key, false);
    }
    function createElementWithValidation(type, props, children) {
      var validType = isValidElementType(type); // We warn in this case but don't throw. We expect the element creation to
      // succeed and there will likely be errors in render.
    
      if (!validType) {
        var info = '';
    
        if (type === undefined || typeof type === 'object' && type !== null && Object.keys(type).length === 0) {
          info += ' You likely forgot to export your component from the file ' + "it's defined in, or you might have mixed up default and named imports.";
        }
    
        var sourceInfo = getSourceInfoErrorAddendumForProps(props);
    
        if (sourceInfo) {
          info += sourceInfo;
        } else {
          info += getDeclarationErrorAddendum();
        }
    
        var typeString;
    
        if (type === null) {
          typeString = 'null';
        } else if (Array.isArray(type)) {
          typeString = 'array';
        } else if (type !== undefined && type.$$typeof === REACT_ELEMENT_TYPE) {
          typeString = "<" + (getComponentName(type.type) || 'Unknown') + " />";
          info = ' Did you accidentally export a JSX literal instead of a component?';
        } else {
          typeString = typeof type;
        }
    
        warning$1(false, 'React.createElement: type is invalid -- expected a string (for ' + 'built-in components) or a class/function (for composite ' + 'components) but got: %s.%s', typeString, info);
      }
    
      var element = createElement.apply(this, arguments); // The result can be nullish if a mock or a custom function is used.
      // TODO: Drop this when these are no longer allowed as the type argument.
    
      if (element == null) {
        return element;
      } // Skip key warning if the type isn't valid since our key validation logic
      // doesn't expect a non-string/function type and can throw confusing errors.
      // We don't want exception behavior to differ between dev and prod.
      // (Rendering will throw with a helpful message and as soon as the type is
      // fixed, the key warnings will appear.)
    
    
      if (validType) {
        for (var i = 2; i < arguments.length; i++) {
          validateChildKeys(arguments[i], type);
        }
      }
    
      if (type === REACT_FRAGMENT_TYPE) {
        validateFragmentProps(element);
      } else {
        validatePropTypes(element);
      }
    
      return element;
    }
    function createFactoryWithValidation(type) {
      var validatedFactory = createElementWithValidation.bind(null, type);
      validatedFactory.type = type; // Legacy hook: remove it
    
      {
        Object.defineProperty(validatedFactory, 'type', {
          enumerable: false,
          get: function () {
            lowPriorityWarningWithoutStack$1(false, 'Factory.type is deprecated. Access the class directly ' + 'before passing it to createFactory.');
            Object.defineProperty(this, 'type', {
              value: type
            });
            return type;
          }
        });
      }
    
      return validatedFactory;
    }
    function cloneElementWithValidation(element, props, children) {
      var newElement = cloneElement.apply(this, arguments);
    
      for (var i = 2; i < arguments.length; i++) {
        validateChildKeys(arguments[i], newElement.type);
      }
    
      validatePropTypes(newElement);
      return newElement;
    }
    
    var hasBadMapPolyfill;
    
    {
      hasBadMapPolyfill = false;
    
      try {
        var frozenObject = Object.freeze({});
        var testMap = new Map([[frozenObject, null]]);
        var testSet = new Set([frozenObject]); // This is necessary for Rollup to not consider these unused.
        // https://github.com/rollup/rollup/issues/1771
        // TODO: we can remove these if Rollup fixes the bug.
    
        testMap.set(0, 0);
        testSet.add(0);
      } catch (e) {
        // TODO: Consider warning about bad polyfills
        hasBadMapPolyfill = true;
      }
    }
    
    function createFundamentalComponent(impl) {
      // We use responder as a Map key later on. When we have a bad
      // polyfill, then we can't use it as a key as the polyfill tries
      // to add a property to the object.
      if ( true && !hasBadMapPolyfill) {
        Object.freeze(impl);
      }
    
      var fundamantalComponent = {
        $$typeof: REACT_FUNDAMENTAL_TYPE,
        impl: impl
      };
    
      {
        Object.freeze(fundamantalComponent);
      }
    
      return fundamantalComponent;
    }
    
    function createEventResponder(displayName, responderConfig) {
      var getInitialState = responderConfig.getInitialState,
          onEvent = responderConfig.onEvent,
          onMount = responderConfig.onMount,
          onUnmount = responderConfig.onUnmount,
          onRootEvent = responderConfig.onRootEvent,
          rootEventTypes = responderConfig.rootEventTypes,
          targetEventTypes = responderConfig.targetEventTypes,
          targetPortalPropagation = responderConfig.targetPortalPropagation;
      var eventResponder = {
        $$typeof: REACT_RESPONDER_TYPE,
        displayName: displayName,
        getInitialState: getInitialState || null,
        onEvent: onEvent || null,
        onMount: onMount || null,
        onRootEvent: onRootEvent || null,
        onUnmount: onUnmount || null,
        rootEventTypes: rootEventTypes || null,
        targetEventTypes: targetEventTypes || null,
        targetPortalPropagation: targetPortalPropagation || false
      }; // We use responder as a Map key later on. When we have a bad
      // polyfill, then we can't use it as a key as the polyfill tries
      // to add a property to the object.
    
      if ( true && !hasBadMapPolyfill) {
        Object.freeze(eventResponder);
      }
    
      return eventResponder;
    }
    
    function createScope(fn) {
      var scopeComponent = {
        $$typeof: REACT_SCOPE_TYPE,
        fn: fn
      };
    
      {
        Object.freeze(scopeComponent);
      }
    
      return scopeComponent;
    }
    
    // Helps identify side effects in begin-phase lifecycle hooks and setState reducers:
    
     // In some cases, StrictMode should also double-render lifecycles.
    // This can be confusing for tests though,
    // And it can be bad for performance in production.
    // This feature flag can be used to control the behavior:
    
     // To preserve the "Pause on caught exceptions" behavior of the debugger, we
    // replay the begin phase of a failed component inside invokeGuardedCallback.
    
     // Warn about deprecated, async-unsafe lifecycles; relates to RFC #6:
    
     // Gather advanced timing metrics for Profiler subtrees.
    
     // Trace which interactions trigger each commit.
    
     // Only used in www builds.
    
     // TODO: true? Here it might just be false.
    
     // Only used in www builds.
    
     // Only used in www builds.
    
     // Disable javascript: URL strings in href for XSS protection.
    
     // React Fire: prevent the value and checked attributes from syncing
    // with their related DOM properties
    
     // These APIs will no longer be "unstable" in the upcoming 16.7 release,
    // Control this behavior with a flag to support 16.6 minor releases in the meanwhile.
    
    
     // See https://github.com/react-native-community/discussions-and-proposals/issues/72 for more information
    // This is a flag so we can fix warnings in RN core before turning it on
    
     // Experimental React Flare event system and event components support.
    
    var enableFlareAPI = false; // Experimental Host Component support.
    
    var enableFundamentalAPI = false; // Experimental Scope support.
    
    var enableScopeAPI = false; // New API for JSX transforms to target - https://github.com/reactjs/rfcs/pull/107
    
    var enableJSXTransformAPI = false; // We will enforce mocking scheduler with scheduler/unstable_mock at some point. (v17?)
    // Till then, we warn about the missing mock, but still fallback to a sync mode compatible version
    
     // For tests, we flush suspense fallbacks in an act scope;
    // *except* in some of our own tests, where we test incremental loading states.
    
     // Changes priority of some events like mousemove to user-blocking priority,
    // but without making them discrete. The flag exists in case it causes
    // starvation problems.
    
     // Add a callback property to suspense to notify which promises are currently
    // in the update queue. This allows reporting and tracing of what is causing
    // the user to see a loading state.
    // Also allows hydration callbacks to fire when a dehydrated boundary gets
    // hydrated or deleted.
    
     // Part of the simplification of React.createElement so we can eventually move
    // from React.createElement to React.jsx
    // https://github.com/reactjs/rfcs/blob/createlement-rfc/text/0000-create-element-changes.md
    
    var React = {
      Children: {
        map: mapChildren,
        forEach: forEachChildren,
        count: countChildren,
        toArray: toArray,
        only: onlyChild
      },
      createRef: createRef,
      Component: Component,
      PureComponent: PureComponent,
      createContext: createContext,
      forwardRef: forwardRef,
      lazy: lazy,
      memo: memo,
      useCallback: useCallback,
      useContext: useContext,
      useEffect: useEffect,
      useImperativeHandle: useImperativeHandle,
      useDebugValue: useDebugValue,
      useLayoutEffect: useLayoutEffect,
      useMemo: useMemo,
      useReducer: useReducer,
      useRef: useRef,
      useState: useState,
      Fragment: REACT_FRAGMENT_TYPE,
      Profiler: REACT_PROFILER_TYPE,
      StrictMode: REACT_STRICT_MODE_TYPE,
      Suspense: REACT_SUSPENSE_TYPE,
      unstable_SuspenseList: REACT_SUSPENSE_LIST_TYPE,
      createElement: createElementWithValidation,
      cloneElement: cloneElementWithValidation,
      createFactory: createFactoryWithValidation,
      isValidElement: isValidElement,
      version: ReactVersion,
      unstable_withSuspenseConfig: withSuspenseConfig,
      __SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED: ReactSharedInternals
    };
    
    if (enableFlareAPI) {
      React.unstable_useResponder = useResponder;
      React.unstable_createResponder = createEventResponder;
    }
    
    if (enableFundamentalAPI) {
      React.unstable_createFundamental = createFundamentalComponent;
    }
    
    if (enableScopeAPI) {
      React.unstable_createScope = createScope;
    } // Note: some APIs are added with feature flags.
    // Make sure that stable builds for open source
    // don't modify the React object to avoid deopts.
    // Also let's not expose their names in stable builds.
    
    
    if (enableJSXTransformAPI) {
      {
        React.jsxDEV = jsxWithValidation;
        React.jsx = jsxWithValidationDynamic;
        React.jsxs = jsxWithValidationStatic;
      }
    }
    
    
    
    var React$2 = Object.freeze({
        default: React
    });
    
    var React$3 = ( React$2 && React ) || React$2;
    
    // TODO: decide on the top-level export form.
    // This is hacky but makes it work with both Rollup and Jest.
    
    
    var react = React$3.default || React$3;
    
    module.exports = react;
      })();
    }
    
    
    /***/ }),
    
    /***/ "./node_modules/react/index.js":
    /*!*************************************!*\
      !*** ./node_modules/react/index.js ***!
      \*************************************/
    /*! no static exports found */
    /***/ (function(module, exports, __webpack_require__) {
    
    "use strict";
    
    
    if (false) {} else {
      module.exports = __webpack_require__(/*! ./cjs/react.development.js */ "./node_modules/react/cjs/react.development.js");
    }
    
    
    /***/ }),
    
    /***/ "./node_modules/scheduler/cjs/scheduler-tracing.development.js":
    /*!*********************************************************************!*\
      !*** ./node_modules/scheduler/cjs/scheduler-tracing.development.js ***!
      \*********************************************************************/
    /*! no static exports found */
    /***/ (function(module, exports, __webpack_require__) {
    
    "use strict";
    /** @license React v0.16.1
     * scheduler-tracing.development.js
     *
     * Copyright (c) Facebook, Inc. and its affiliates.
     *
     * This source code is licensed under the MIT license found in the
     * LICENSE file in the root directory of this source tree.
     */
    
    
    
    
    
    if (true) {
      (function() {
    'use strict';
    
    Object.defineProperty(exports, '__esModule', { value: true });
    
    // Helps identify side effects in begin-phase lifecycle hooks and setState reducers:
    
     // In some cases, StrictMode should also double-render lifecycles.
    // This can be confusing for tests though,
    // And it can be bad for performance in production.
    // This feature flag can be used to control the behavior:
    
     // To preserve the "Pause on caught exceptions" behavior of the debugger, we
    // replay the begin phase of a failed component inside invokeGuardedCallback.
    
     // Warn about deprecated, async-unsafe lifecycles; relates to RFC #6:
    
     // Gather advanced timing metrics for Profiler subtrees.
    
     // Trace which interactions trigger each commit.
    
    var enableSchedulerTracing = true; // Only used in www builds.
    
     // TODO: true? Here it might just be false.
    
     // Only used in www builds.
    
     // Only used in www builds.
    
     // Disable javascript: URL strings in href for XSS protection.
    
     // React Fire: prevent the value and checked attributes from syncing
    // with their related DOM properties
    
     // These APIs will no longer be "unstable" in the upcoming 16.7 release,
    // Control this behavior with a flag to support 16.6 minor releases in the meanwhile.
    
    
     // See https://github.com/react-native-community/discussions-and-proposals/issues/72 for more information
    // This is a flag so we can fix warnings in RN core before turning it on
    
     // Experimental React Flare event system and event components support.
    
     // Experimental Host Component support.
    
     // Experimental Scope support.
    
     // New API for JSX transforms to target - https://github.com/reactjs/rfcs/pull/107
    
     // We will enforce mocking scheduler with scheduler/unstable_mock at some point. (v17?)
    // Till then, we warn about the missing mock, but still fallback to a sync mode compatible version
    
     // For tests, we flush suspense fallbacks in an act scope;
    // *except* in some of our own tests, where we test incremental loading states.
    
     // Changes priority of some events like mousemove to user-blocking priority,
    // but without making them discrete. The flag exists in case it causes
    // starvation problems.
    
     // Add a callback property to suspense to notify which promises are currently
    // in the update queue. This allows reporting and tracing of what is causing
    // the user to see a loading state.
    // Also allows hydration callbacks to fire when a dehydrated boundary gets
    // hydrated or deleted.
    
     // Part of the simplification of React.createElement so we can eventually move
    // from React.createElement to React.jsx
    // https://github.com/reactjs/rfcs/blob/createlement-rfc/text/0000-create-element-changes.md
    
    var DEFAULT_THREAD_ID = 0; // Counters used to generate unique IDs.
    
    var interactionIDCounter = 0;
    var threadIDCounter = 0; // Set of currently traced interactions.
    // Interactions "stack"–
    // Meaning that newly traced interactions are appended to the previously active set.
    // When an interaction goes out of scope, the previous set (if any) is restored.
    
    exports.__interactionsRef = null; // Listener(s) to notify when interactions begin and end.
    
    exports.__subscriberRef = null;
    
    if (enableSchedulerTracing) {
      exports.__interactionsRef = {
        current: new Set()
      };
      exports.__subscriberRef = {
        current: null
      };
    }
    
    function unstable_clear(callback) {
      if (!enableSchedulerTracing) {
        return callback();
      }
    
      var prevInteractions = exports.__interactionsRef.current;
      exports.__interactionsRef.current = new Set();
    
      try {
        return callback();
      } finally {
        exports.__interactionsRef.current = prevInteractions;
      }
    }
    function unstable_getCurrent() {
      if (!enableSchedulerTracing) {
        return null;
      } else {
        return exports.__interactionsRef.current;
      }
    }
    function unstable_getThreadID() {
      return ++threadIDCounter;
    }
    function unstable_trace(name, timestamp, callback) {
      var threadID = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : DEFAULT_THREAD_ID;
    
      if (!enableSchedulerTracing) {
        return callback();
      }
    
      var interaction = {
        __count: 1,
        id: interactionIDCounter++,
        name: name,
        timestamp: timestamp
      };
      var prevInteractions = exports.__interactionsRef.current; // Traced interactions should stack/accumulate.
      // To do that, clone the current interactions.
      // The previous set will be restored upon completion.
    
      var interactions = new Set(prevInteractions);
      interactions.add(interaction);
      exports.__interactionsRef.current = interactions;
      var subscriber = exports.__subscriberRef.current;
      var returnValue;
    
      try {
        if (subscriber !== null) {
          subscriber.onInteractionTraced(interaction);
        }
      } finally {
        try {
          if (subscriber !== null) {
            subscriber.onWorkStarted(interactions, threadID);
          }
        } finally {
          try {
            returnValue = callback();
          } finally {
            exports.__interactionsRef.current = prevInteractions;
    
            try {
              if (subscriber !== null) {
                subscriber.onWorkStopped(interactions, threadID);
              }
            } finally {
              interaction.__count--; // If no async work was scheduled for this interaction,
              // Notify subscribers that it's completed.
    
              if (subscriber !== null && interaction.__count === 0) {
                subscriber.onInteractionScheduledWorkCompleted(interaction);
              }
            }
          }
        }
      }
    
      return returnValue;
    }
    function unstable_wrap(callback) {
      var threadID = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : DEFAULT_THREAD_ID;
    
      if (!enableSchedulerTracing) {
        return callback;
      }
    
      var wrappedInteractions = exports.__interactionsRef.current;
      var subscriber = exports.__subscriberRef.current;
    
      if (subscriber !== null) {
        subscriber.onWorkScheduled(wrappedInteractions, threadID);
      } // Update the pending async work count for the current interactions.
      // Update after calling subscribers in case of error.
    
    
      wrappedInteractions.forEach(function (interaction) {
        interaction.__count++;
      });
      var hasRun = false;
    
      function wrapped() {
        var prevInteractions = exports.__interactionsRef.current;
        exports.__interactionsRef.current = wrappedInteractions;
        subscriber = exports.__subscriberRef.current;
    
        try {
          var returnValue;
    
          try {
            if (subscriber !== null) {
              subscriber.onWorkStarted(wrappedInteractions, threadID);
            }
          } finally {
            try {
              returnValue = callback.apply(undefined, arguments);
            } finally {
              exports.__interactionsRef.current = prevInteractions;
    
              if (subscriber !== null) {
                subscriber.onWorkStopped(wrappedInteractions, threadID);
              }
            }
          }
    
          return returnValue;
        } finally {
          if (!hasRun) {
            // We only expect a wrapped function to be executed once,
            // But in the event that it's executed more than once–
            // Only decrement the outstanding interaction counts once.
            hasRun = true; // Update pending async counts for all wrapped interactions.
            // If this was the last scheduled async work for any of them,
            // Mark them as completed.
    
            wrappedInteractions.forEach(function (interaction) {
              interaction.__count--;
    
              if (subscriber !== null && interaction.__count === 0) {
                subscriber.onInteractionScheduledWorkCompleted(interaction);
              }
            });
          }
        }
      }
    
      wrapped.cancel = function cancel() {
        subscriber = exports.__subscriberRef.current;
    
        try {
          if (subscriber !== null) {
            subscriber.onWorkCanceled(wrappedInteractions, threadID);
          }
        } finally {
          // Update pending async counts for all wrapped interactions.
          // If this was the last scheduled async work for any of them,
          // Mark them as completed.
          wrappedInteractions.forEach(function (interaction) {
            interaction.__count--;
    
            if (subscriber && interaction.__count === 0) {
              subscriber.onInteractionScheduledWorkCompleted(interaction);
            }
          });
        }
      };
    
      return wrapped;
    }
    
    var subscribers = null;
    
    if (enableSchedulerTracing) {
      subscribers = new Set();
    }
    
    function unstable_subscribe(subscriber) {
      if (enableSchedulerTracing) {
        subscribers.add(subscriber);
    
        if (subscribers.size === 1) {
          exports.__subscriberRef.current = {
            onInteractionScheduledWorkCompleted: onInteractionScheduledWorkCompleted,
            onInteractionTraced: onInteractionTraced,
            onWorkCanceled: onWorkCanceled,
            onWorkScheduled: onWorkScheduled,
            onWorkStarted: onWorkStarted,
            onWorkStopped: onWorkStopped
          };
        }
      }
    }
    function unstable_unsubscribe(subscriber) {
      if (enableSchedulerTracing) {
        subscribers.delete(subscriber);
    
        if (subscribers.size === 0) {
          exports.__subscriberRef.current = null;
        }
      }
    }
    
    function onInteractionTraced(interaction) {
      var didCatchError = false;
      var caughtError = null;
      subscribers.forEach(function (subscriber) {
        try {
          subscriber.onInteractionTraced(interaction);
        } catch (error) {
          if (!didCatchError) {
            didCatchError = true;
            caughtError = error;
          }
        }
      });
    
      if (didCatchError) {
        throw caughtError;
      }
    }
    
    function onInteractionScheduledWorkCompleted(interaction) {
      var didCatchError = false;
      var caughtError = null;
      subscribers.forEach(function (subscriber) {
        try {
          subscriber.onInteractionScheduledWorkCompleted(interaction);
        } catch (error) {
          if (!didCatchError) {
            didCatchError = true;
            caughtError = error;
          }
        }
      });
    
      if (didCatchError) {
        throw caughtError;
      }
    }
    
    function onWorkScheduled(interactions, threadID) {
      var didCatchError = false;
      var caughtError = null;
      subscribers.forEach(function (subscriber) {
        try {
          subscriber.onWorkScheduled(interactions, threadID);
        } catch (error) {
          if (!didCatchError) {
            didCatchError = true;
            caughtError = error;
          }
        }
      });
    
      if (didCatchError) {
        throw caughtError;
      }
    }
    
    function onWorkStarted(interactions, threadID) {
      var didCatchError = false;
      var caughtError = null;
      subscribers.forEach(function (subscriber) {
        try {
          subscriber.onWorkStarted(interactions, threadID);
        } catch (error) {
          if (!didCatchError) {
            didCatchError = true;
            caughtError = error;
          }
        }
      });
    
      if (didCatchError) {
        throw caughtError;
      }
    }
    
    function onWorkStopped(interactions, threadID) {
      var didCatchError = false;
      var caughtError = null;
      subscribers.forEach(function (subscriber) {
        try {
          subscriber.onWorkStopped(interactions, threadID);
        } catch (error) {
          if (!didCatchError) {
            didCatchError = true;
            caughtError = error;
          }
        }
      });
    
      if (didCatchError) {
        throw caughtError;
      }
    }
    
    function onWorkCanceled(interactions, threadID) {
      var didCatchError = false;
      var caughtError = null;
      subscribers.forEach(function (subscriber) {
        try {
          subscriber.onWorkCanceled(interactions, threadID);
        } catch (error) {
          if (!didCatchError) {
            didCatchError = true;
            caughtError = error;
          }
        }
      });
    
      if (didCatchError) {
        throw caughtError;
      }
    }
    
    exports.unstable_clear = unstable_clear;
    exports.unstable_getCurrent = unstable_getCurrent;
    exports.unstable_getThreadID = unstable_getThreadID;
    exports.unstable_trace = unstable_trace;
    exports.unstable_wrap = unstable_wrap;
    exports.unstable_subscribe = unstable_subscribe;
    exports.unstable_unsubscribe = unstable_unsubscribe;
      })();
    }
    
    
    /***/ }),
    
    /***/ "./node_modules/scheduler/cjs/scheduler.development.js":
    /*!*************************************************************!*\
      !*** ./node_modules/scheduler/cjs/scheduler.development.js ***!
      \*************************************************************/
    /*! no static exports found */
    /***/ (function(module, exports, __webpack_require__) {
    
    "use strict";
    /** @license React v0.16.1
     * scheduler.development.js
     *
     * Copyright (c) Facebook, Inc. and its affiliates.
     *
     * This source code is licensed under the MIT license found in the
     * LICENSE file in the root directory of this source tree.
     */
    
    
    
    
    
    if (true) {
      (function() {
    'use strict';
    
    Object.defineProperty(exports, '__esModule', { value: true });
    
    var enableSchedulerDebugging = false;
    var enableIsInputPending = false;
    var enableMessageLoopImplementation = true;
    var enableProfiling = true;
    
    // works by scheduling a requestAnimationFrame, storing the time for the start
    // of the frame, then scheduling a postMessage which gets scheduled after paint.
    // Within the postMessage handler do as much work as possible until time + frame
    // rate. By separating the idle call into a separate event tick we ensure that
    // layout, paint and other browser work is counted against the available time.
    // The frame rate is dynamically adjusted.
    
    var requestHostCallback;
    
    var requestHostTimeout;
    var cancelHostTimeout;
    var shouldYieldToHost;
    var requestPaint;
    
    
    
    if ( // If Scheduler runs in a non-DOM environment, it falls back to a naive
    // implementation using setTimeout.
    typeof window === 'undefined' || // Check if MessageChannel is supported, too.
    typeof MessageChannel !== 'function') {
      // If this accidentally gets imported in a non-browser environment, e.g. JavaScriptCore,
      // fallback to a naive implementation.
      var _callback = null;
      var _timeoutID = null;
    
      var _flushCallback = function () {
        if (_callback !== null) {
          try {
            var currentTime = exports.unstable_now();
            var hasRemainingTime = true;
    
            _callback(hasRemainingTime, currentTime);
    
            _callback = null;
          } catch (e) {
            setTimeout(_flushCallback, 0);
            throw e;
          }
        }
      };
    
      var initialTime = Date.now();
    
      exports.unstable_now = function () {
        return Date.now() - initialTime;
      };
    
      requestHostCallback = function (cb) {
        if (_callback !== null) {
          // Protect against re-entrancy.
          setTimeout(requestHostCallback, 0, cb);
        } else {
          _callback = cb;
          setTimeout(_flushCallback, 0);
        }
      };
    
      requestHostTimeout = function (cb, ms) {
        _timeoutID = setTimeout(cb, ms);
      };
    
      cancelHostTimeout = function () {
        clearTimeout(_timeoutID);
      };
    
      shouldYieldToHost = function () {
        return false;
      };
    
      requestPaint = exports.unstable_forceFrameRate = function () {};
    } else {
      // Capture local references to native APIs, in case a polyfill overrides them.
      var performance = window.performance;
      var _Date = window.Date;
      var _setTimeout = window.setTimeout;
      var _clearTimeout = window.clearTimeout;
      var requestAnimationFrame = window.requestAnimationFrame;
      var cancelAnimationFrame = window.cancelAnimationFrame;
    
      if (typeof console !== 'undefined') {
        // TODO: Remove fb.me link
        if (typeof requestAnimationFrame !== 'function') {
          console.error("This browser doesn't support requestAnimationFrame. " + 'Make sure that you load a ' + 'polyfill in older browsers. https://fb.me/react-polyfills');
        }
    
        if (typeof cancelAnimationFrame !== 'function') {
          console.error("This browser doesn't support cancelAnimationFrame. " + 'Make sure that you load a ' + 'polyfill in older browsers. https://fb.me/react-polyfills');
        }
      }
    
      if (typeof performance === 'object' && typeof performance.now === 'function') {
        exports.unstable_now = function () {
          return performance.now();
        };
      } else {
        var _initialTime = _Date.now();
    
        exports.unstable_now = function () {
          return _Date.now() - _initialTime;
        };
      }
    
      var isRAFLoopRunning = false;
      var isMessageLoopRunning = false;
      var scheduledHostCallback = null;
      var rAFTimeoutID = -1;
      var taskTimeoutID = -1;
      var frameLength = enableMessageLoopImplementation ? // We won't attempt to align with the vsync. Instead we'll yield multiple
      // times per frame, often enough to keep it responsive even at really
      // high frame rates > 120.
      5 : // Use a heuristic to measure the frame rate and yield at the end of the
      // frame. We start out assuming that we run at 30fps but then the
      // heuristic tracking will adjust this value to a faster fps if we get
      // more frequent animation frames.
      33.33;
      var prevRAFTime = -1;
      var prevRAFInterval = -1;
      var frameDeadline = 0;
      var fpsLocked = false; // TODO: Make this configurable
      // TODO: Adjust this based on priority?
    
      var maxFrameLength = 300;
      var needsPaint = false;
    
      if (enableIsInputPending && navigator !== undefined && navigator.scheduling !== undefined && navigator.scheduling.isInputPending !== undefined) {
        var scheduling = navigator.scheduling;
    
        shouldYieldToHost = function () {
          var currentTime = exports.unstable_now();
    
          if (currentTime >= frameDeadline) {
            // There's no time left in the frame. We may want to yield control of
            // the main thread, so the browser can perform high priority tasks. The
            // main ones are painting and user input. If there's a pending paint or
            // a pending input, then we should yield. But if there's neither, then
            // we can yield less often while remaining responsive. We'll eventually
            // yield regardless, since there could be a pending paint that wasn't
            // accompanied by a call to `requestPaint`, or other main thread tasks
            // like network events.
            if (needsPaint || scheduling.isInputPending()) {
              // There is either a pending paint or a pending input.
              return true;
            } // There's no pending input. Only yield if we've reached the max
            // frame length.
    
    
            return currentTime >= frameDeadline + maxFrameLength;
          } else {
            // There's still time left in the frame.
            return false;
          }
        };
    
        requestPaint = function () {
          needsPaint = true;
        };
      } else {
        // `isInputPending` is not available. Since we have no way of knowing if
        // there's pending input, always yield at the end of the frame.
        shouldYieldToHost = function () {
          return exports.unstable_now() >= frameDeadline;
        }; // Since we yield every frame regardless, `requestPaint` has no effect.
    
    
        requestPaint = function () {};
      }
    
      exports.unstable_forceFrameRate = function (fps) {
        if (fps < 0 || fps > 125) {
          console.error('forceFrameRate takes a positive int between 0 and 125, ' + 'forcing framerates higher than 125 fps is not unsupported');
          return;
        }
    
        if (fps > 0) {
          frameLength = Math.floor(1000 / fps);
          fpsLocked = true;
        } else {
          // reset the framerate
          frameLength = 33.33;
          fpsLocked = false;
        }
      };
    
      var performWorkUntilDeadline = function () {
        if (enableMessageLoopImplementation) {
          if (scheduledHostCallback !== null) {
            var currentTime = exports.unstable_now(); // Yield after `frameLength` ms, regardless of where we are in the vsync
            // cycle. This means there's always time remaining at the beginning of
            // the message event.
    
            frameDeadline = currentTime + frameLength;
            var hasTimeRemaining = true;
    
            try {
              var hasMoreWork = scheduledHostCallback(hasTimeRemaining, currentTime);
    
              if (!hasMoreWork) {
                isMessageLoopRunning = false;
                scheduledHostCallback = null;
              } else {
                // If there's more work, schedule the next message event at the end
                // of the preceding one.
                port.postMessage(null);
              }
            } catch (error) {
              // If a scheduler task throws, exit the current browser task so the
              // error can be observed.
              port.postMessage(null);
              throw error;
            }
          } else {
            isMessageLoopRunning = false;
          } // Yielding to the browser will give it a chance to paint, so we can
          // reset this.
    
    
          needsPaint = false;
        } else {
          if (scheduledHostCallback !== null) {
            var _currentTime = exports.unstable_now();
    
            var _hasTimeRemaining = frameDeadline - _currentTime > 0;
    
            try {
              var _hasMoreWork = scheduledHostCallback(_hasTimeRemaining, _currentTime);
    
              if (!_hasMoreWork) {
                scheduledHostCallback = null;
              }
            } catch (error) {
              // If a scheduler task throws, exit the current browser task so the
              // error can be observed, and post a new task as soon as possible
              // so we can continue where we left off.
              port.postMessage(null);
              throw error;
            }
          } // Yielding to the browser will give it a chance to paint, so we can
          // reset this.
    
    
          needsPaint = false;
        }
      };
    
      var channel = new MessageChannel();
      var port = channel.port2;
      channel.port1.onmessage = performWorkUntilDeadline;
    
      var onAnimationFrame = function (rAFTime) {
        if (scheduledHostCallback === null) {
          // No scheduled work. Exit.
          prevRAFTime = -1;
          prevRAFInterval = -1;
          isRAFLoopRunning = false;
          return;
        } // Eagerly schedule the next animation callback at the beginning of the
        // frame. If the scheduler queue is not empty at the end of the frame, it
        // will continue flushing inside that callback. If the queue *is* empty,
        // then it will exit immediately. Posting the callback at the start of the
        // frame ensures it's fired within the earliest possible frame. If we
        // waited until the end of the frame to post the callback, we risk the
        // browser skipping a frame and not firing the callback until the frame
        // after that.
    
    
        isRAFLoopRunning = true;
        requestAnimationFrame(function (nextRAFTime) {
          _clearTimeout(rAFTimeoutID);
    
          onAnimationFrame(nextRAFTime);
        }); // requestAnimationFrame is throttled when the tab is backgrounded. We
        // don't want to stop working entirely. So we'll fallback to a timeout loop.
        // TODO: Need a better heuristic for backgrounded work.
    
        var onTimeout = function () {
          frameDeadline = exports.unstable_now() + frameLength / 2;
          performWorkUntilDeadline();
          rAFTimeoutID = _setTimeout(onTimeout, frameLength * 3);
        };
    
        rAFTimeoutID = _setTimeout(onTimeout, frameLength * 3);
    
        if (prevRAFTime !== -1 && // Make sure this rAF time is different from the previous one. This check
        // could fail if two rAFs fire in the same frame.
        rAFTime - prevRAFTime > 0.1) {
          var rAFInterval = rAFTime - prevRAFTime;
    
          if (!fpsLocked && prevRAFInterval !== -1) {
            // We've observed two consecutive frame intervals. We'll use this to
            // dynamically adjust the frame rate.
            //
            // If one frame goes long, then the next one can be short to catch up.
            // If two frames are short in a row, then that's an indication that we
            // actually have a higher frame rate than what we're currently
            // optimizing. For example, if we're running on 120hz display or 90hz VR
            // display. Take the max of the two in case one of them was an anomaly
            // due to missed frame deadlines.
            if (rAFInterval < frameLength && prevRAFInterval < frameLength) {
              frameLength = rAFInterval < prevRAFInterval ? prevRAFInterval : rAFInterval;
    
              if (frameLength < 8.33) {
                // Defensive coding. We don't support higher frame rates than 120hz.
                // If the calculated frame length gets lower than 8, it is probably
                // a bug.
                frameLength = 8.33;
              }
            }
          }
    
          prevRAFInterval = rAFInterval;
        }
    
        prevRAFTime = rAFTime;
        frameDeadline = rAFTime + frameLength; // We use the postMessage trick to defer idle work until after the repaint.
    
        port.postMessage(null);
      };
    
      requestHostCallback = function (callback) {
        scheduledHostCallback = callback;
    
        if (enableMessageLoopImplementation) {
          if (!isMessageLoopRunning) {
            isMessageLoopRunning = true;
            port.postMessage(null);
          }
        } else {
          if (!isRAFLoopRunning) {
            // Start a rAF loop.
            isRAFLoopRunning = true;
            requestAnimationFrame(function (rAFTime) {
              onAnimationFrame(rAFTime);
            });
          }
        }
      };
    
      requestHostTimeout = function (callback, ms) {
        taskTimeoutID = _setTimeout(function () {
          callback(exports.unstable_now());
        }, ms);
      };
    
      cancelHostTimeout = function () {
        _clearTimeout(taskTimeoutID);
    
        taskTimeoutID = -1;
      };
    }
    
    function push(heap, node) {
      var index = heap.length;
      heap.push(node);
      siftUp(heap, node, index);
    }
    function peek(heap) {
      var first = heap[0];
      return first === undefined ? null : first;
    }
    function pop(heap) {
      var first = heap[0];
    
      if (first !== undefined) {
        var last = heap.pop();
    
        if (last !== first) {
          heap[0] = last;
          siftDown(heap, last, 0);
        }
    
        return first;
      } else {
        return null;
      }
    }
    
    function siftUp(heap, node, i) {
      var index = i;
    
      while (true) {
        var parentIndex = Math.floor((index - 1) / 2);
        var parent = heap[parentIndex];
    
        if (parent !== undefined && compare(parent, node) > 0) {
          // The parent is larger. Swap positions.
          heap[parentIndex] = node;
          heap[index] = parent;
          index = parentIndex;
        } else {
          // The parent is smaller. Exit.
          return;
        }
      }
    }
    
    function siftDown(heap, node, i) {
      var index = i;
      var length = heap.length;
    
      while (index < length) {
        var leftIndex = (index + 1) * 2 - 1;
        var left = heap[leftIndex];
        var rightIndex = leftIndex + 1;
        var right = heap[rightIndex]; // If the left or right node is smaller, swap with the smaller of those.
    
        if (left !== undefined && compare(left, node) < 0) {
          if (right !== undefined && compare(right, left) < 0) {
            heap[index] = right;
            heap[rightIndex] = node;
            index = rightIndex;
          } else {
            heap[index] = left;
            heap[leftIndex] = node;
            index = leftIndex;
          }
        } else if (right !== undefined && compare(right, node) < 0) {
          heap[index] = right;
          heap[rightIndex] = node;
          index = rightIndex;
        } else {
          // Neither child is smaller. Exit.
          return;
        }
      }
    }
    
    function compare(a, b) {
      // Compare sort index first, then task id.
      var diff = a.sortIndex - b.sortIndex;
      return diff !== 0 ? diff : a.id - b.id;
    }
    
    // TODO: Use symbols?
    var NoPriority = 0;
    var ImmediatePriority = 1;
    var UserBlockingPriority = 2;
    var NormalPriority = 3;
    var LowPriority = 4;
    var IdlePriority = 5;
    
    var runIdCounter = 0;
    var mainThreadIdCounter = 0;
    var profilingStateSize = 4;
    var sharedProfilingBuffer = enableProfiling ? // $FlowFixMe Flow doesn't know about SharedArrayBuffer
    typeof SharedArrayBuffer === 'function' ? new SharedArrayBuffer(profilingStateSize * Int32Array.BYTES_PER_ELEMENT) : // $FlowFixMe Flow doesn't know about ArrayBuffer
    typeof ArrayBuffer === 'function' ? new ArrayBuffer(profilingStateSize * Int32Array.BYTES_PER_ELEMENT) : null // Don't crash the init path on IE9
    : null;
    var profilingState = enableProfiling && sharedProfilingBuffer !== null ? new Int32Array(sharedProfilingBuffer) : []; // We can't read this but it helps save bytes for null checks
    
    var PRIORITY = 0;
    var CURRENT_TASK_ID = 1;
    var CURRENT_RUN_ID = 2;
    var QUEUE_SIZE = 3;
    
    if (enableProfiling) {
      profilingState[PRIORITY] = NoPriority; // This is maintained with a counter, because the size of the priority queue
      // array might include canceled tasks.
    
      profilingState[QUEUE_SIZE] = 0;
      profilingState[CURRENT_TASK_ID] = 0;
    } // Bytes per element is 4
    
    
    var INITIAL_EVENT_LOG_SIZE = 131072;
    var MAX_EVENT_LOG_SIZE = 524288; // Equivalent to 2 megabytes
    
    var eventLogSize = 0;
    var eventLogBuffer = null;
    var eventLog = null;
    var eventLogIndex = 0;
    var TaskStartEvent = 1;
    var TaskCompleteEvent = 2;
    var TaskErrorEvent = 3;
    var TaskCancelEvent = 4;
    var TaskRunEvent = 5;
    var TaskYieldEvent = 6;
    var SchedulerSuspendEvent = 7;
    var SchedulerResumeEvent = 8;
    
    function logEvent(entries) {
      if (eventLog !== null) {
        var offset = eventLogIndex;
        eventLogIndex += entries.length;
    
        if (eventLogIndex + 1 > eventLogSize) {
          eventLogSize *= 2;
    
          if (eventLogSize > MAX_EVENT_LOG_SIZE) {
            console.error("Scheduler Profiling: Event log exceeded maximum size. Don't " + 'forget to call `stopLoggingProfilingEvents()`.');
            stopLoggingProfilingEvents();
            return;
          }
    
          var newEventLog = new Int32Array(eventLogSize * 4);
          newEventLog.set(eventLog);
          eventLogBuffer = newEventLog.buffer;
          eventLog = newEventLog;
        }
    
        eventLog.set(entries, offset);
      }
    }
    
    function startLoggingProfilingEvents() {
      eventLogSize = INITIAL_EVENT_LOG_SIZE;
      eventLogBuffer = new ArrayBuffer(eventLogSize * 4);
      eventLog = new Int32Array(eventLogBuffer);
      eventLogIndex = 0;
    }
    function stopLoggingProfilingEvents() {
      var buffer = eventLogBuffer;
      eventLogSize = 0;
      eventLogBuffer = null;
      eventLog = null;
      eventLogIndex = 0;
      return buffer;
    }
    function markTaskStart(task, time) {
      if (enableProfiling) {
        profilingState[QUEUE_SIZE]++;
    
        if (eventLog !== null) {
          logEvent([TaskStartEvent, time, task.id, task.priorityLevel]);
        }
      }
    }
    function markTaskCompleted(task, time) {
      if (enableProfiling) {
        profilingState[PRIORITY] = NoPriority;
        profilingState[CURRENT_TASK_ID] = 0;
        profilingState[QUEUE_SIZE]--;
    
        if (eventLog !== null) {
          logEvent([TaskCompleteEvent, time, task.id]);
        }
      }
    }
    function markTaskCanceled(task, time) {
      if (enableProfiling) {
        profilingState[QUEUE_SIZE]--;
    
        if (eventLog !== null) {
          logEvent([TaskCancelEvent, time, task.id]);
        }
      }
    }
    function markTaskErrored(task, time) {
      if (enableProfiling) {
        profilingState[PRIORITY] = NoPriority;
        profilingState[CURRENT_TASK_ID] = 0;
        profilingState[QUEUE_SIZE]--;
    
        if (eventLog !== null) {
          logEvent([TaskErrorEvent, time, task.id]);
        }
      }
    }
    function markTaskRun(task, time) {
      if (enableProfiling) {
        runIdCounter++;
        profilingState[PRIORITY] = task.priorityLevel;
        profilingState[CURRENT_TASK_ID] = task.id;
        profilingState[CURRENT_RUN_ID] = runIdCounter;
    
        if (eventLog !== null) {
          logEvent([TaskRunEvent, time, task.id, runIdCounter]);
        }
      }
    }
    function markTaskYield(task, time) {
      if (enableProfiling) {
        profilingState[PRIORITY] = NoPriority;
        profilingState[CURRENT_TASK_ID] = 0;
        profilingState[CURRENT_RUN_ID] = 0;
    
        if (eventLog !== null) {
          logEvent([TaskYieldEvent, time, task.id, runIdCounter]);
        }
      }
    }
    function markSchedulerSuspended(time) {
      if (enableProfiling) {
        mainThreadIdCounter++;
    
        if (eventLog !== null) {
          logEvent([SchedulerSuspendEvent, time, mainThreadIdCounter]);
        }
      }
    }
    function markSchedulerUnsuspended(time) {
      if (enableProfiling) {
        if (eventLog !== null) {
          logEvent([SchedulerResumeEvent, time, mainThreadIdCounter]);
        }
      }
    }
    
    /* eslint-disable no-var */
    // Math.pow(2, 30) - 1
    // 0b111111111111111111111111111111
    
    var maxSigned31BitInt = 1073741823; // Times out immediately
    
    var IMMEDIATE_PRIORITY_TIMEOUT = -1; // Eventually times out
    
    var USER_BLOCKING_PRIORITY = 250;
    var NORMAL_PRIORITY_TIMEOUT = 5000;
    var LOW_PRIORITY_TIMEOUT = 10000; // Never times out
    
    var IDLE_PRIORITY = maxSigned31BitInt; // Tasks are stored on a min heap
    
    var taskQueue = [];
    var timerQueue = []; // Incrementing id counter. Used to maintain insertion order.
    
    var taskIdCounter = 1; // Pausing the scheduler is useful for debugging.
    
    var isSchedulerPaused = false;
    var currentTask = null;
    var currentPriorityLevel = NormalPriority; // This is set while performing work, to prevent re-entrancy.
    
    var isPerformingWork = false;
    var isHostCallbackScheduled = false;
    var isHostTimeoutScheduled = false;
    
    function advanceTimers(currentTime) {
      // Check for tasks that are no longer delayed and add them to the queue.
      var timer = peek(timerQueue);
    
      while (timer !== null) {
        if (timer.callback === null) {
          // Timer was cancelled.
          pop(timerQueue);
        } else if (timer.startTime <= currentTime) {
          // Timer fired. Transfer to the task queue.
          pop(timerQueue);
          timer.sortIndex = timer.expirationTime;
          push(taskQueue, timer);
    
          if (enableProfiling) {
            markTaskStart(timer, currentTime);
            timer.isQueued = true;
          }
        } else {
          // Remaining timers are pending.
          return;
        }
    
        timer = peek(timerQueue);
      }
    }
    
    function handleTimeout(currentTime) {
      isHostTimeoutScheduled = false;
      advanceTimers(currentTime);
    
      if (!isHostCallbackScheduled) {
        if (peek(taskQueue) !== null) {
          isHostCallbackScheduled = true;
          requestHostCallback(flushWork);
        } else {
          var firstTimer = peek(timerQueue);
    
          if (firstTimer !== null) {
            requestHostTimeout(handleTimeout, firstTimer.startTime - currentTime);
          }
        }
      }
    }
    
    function flushWork(hasTimeRemaining, initialTime) {
      if (enableProfiling) {
        markSchedulerUnsuspended(initialTime);
      } // We'll need a host callback the next time work is scheduled.
    
    
      isHostCallbackScheduled = false;
    
      if (isHostTimeoutScheduled) {
        // We scheduled a timeout but it's no longer needed. Cancel it.
        isHostTimeoutScheduled = false;
        cancelHostTimeout();
      }
    
      isPerformingWork = true;
      var previousPriorityLevel = currentPriorityLevel;
    
      try {
        if (enableProfiling) {
          try {
            return workLoop(hasTimeRemaining, initialTime);
          } catch (error) {
            if (currentTask !== null) {
              var currentTime = exports.unstable_now();
              markTaskErrored(currentTask, currentTime);
              currentTask.isQueued = false;
            }
    
            throw error;
          }
        } else {
          // No catch in prod codepath.
          return workLoop(hasTimeRemaining, initialTime);
        }
      } finally {
        currentTask = null;
        currentPriorityLevel = previousPriorityLevel;
        isPerformingWork = false;
    
        if (enableProfiling) {
          var _currentTime = exports.unstable_now();
    
          markSchedulerSuspended(_currentTime);
        }
      }
    }
    
    function workLoop(hasTimeRemaining, initialTime) {
      var currentTime = initialTime;
      advanceTimers(currentTime);
      currentTask = peek(taskQueue);
    
      while (currentTask !== null && !(enableSchedulerDebugging && isSchedulerPaused)) {
        if (currentTask.expirationTime > currentTime && (!hasTimeRemaining || shouldYieldToHost())) {
          // This currentTask hasn't expired, and we've reached the deadline.
          break;
        }
    
        var callback = currentTask.callback;
    
        if (callback !== null) {
          currentTask.callback = null;
          currentPriorityLevel = currentTask.priorityLevel;
          var didUserCallbackTimeout = currentTask.expirationTime <= currentTime;
          markTaskRun(currentTask, currentTime);
          var continuationCallback = callback(didUserCallbackTimeout);
          currentTime = exports.unstable_now();
    
          if (typeof continuationCallback === 'function') {
            currentTask.callback = continuationCallback;
            markTaskYield(currentTask, currentTime);
          } else {
            if (enableProfiling) {
              markTaskCompleted(currentTask, currentTime);
              currentTask.isQueued = false;
            }
    
            if (currentTask === peek(taskQueue)) {
              pop(taskQueue);
            }
          }
    
          advanceTimers(currentTime);
        } else {
          pop(taskQueue);
        }
    
        currentTask = peek(taskQueue);
      } // Return whether there's additional work
    
    
      if (currentTask !== null) {
        return true;
      } else {
        var firstTimer = peek(timerQueue);
    
        if (firstTimer !== null) {
          requestHostTimeout(handleTimeout, firstTimer.startTime - currentTime);
        }
    
        return false;
      }
    }
    
    function unstable_runWithPriority(priorityLevel, eventHandler) {
      switch (priorityLevel) {
        case ImmediatePriority:
        case UserBlockingPriority:
        case NormalPriority:
        case LowPriority:
        case IdlePriority:
          break;
    
        default:
          priorityLevel = NormalPriority;
      }
    
      var previousPriorityLevel = currentPriorityLevel;
      currentPriorityLevel = priorityLevel;
    
      try {
        return eventHandler();
      } finally {
        currentPriorityLevel = previousPriorityLevel;
      }
    }
    
    function unstable_next(eventHandler) {
      var priorityLevel;
    
      switch (currentPriorityLevel) {
        case ImmediatePriority:
        case UserBlockingPriority:
        case NormalPriority:
          // Shift down to normal priority
          priorityLevel = NormalPriority;
          break;
    
        default:
          // Anything lower than normal priority should remain at the current level.
          priorityLevel = currentPriorityLevel;
          break;
      }
    
      var previousPriorityLevel = currentPriorityLevel;
      currentPriorityLevel = priorityLevel;
    
      try {
        return eventHandler();
      } finally {
        currentPriorityLevel = previousPriorityLevel;
      }
    }
    
    function unstable_wrapCallback(callback) {
      var parentPriorityLevel = currentPriorityLevel;
      return function () {
        // This is a fork of runWithPriority, inlined for performance.
        var previousPriorityLevel = currentPriorityLevel;
        currentPriorityLevel = parentPriorityLevel;
    
        try {
          return callback.apply(this, arguments);
        } finally {
          currentPriorityLevel = previousPriorityLevel;
        }
      };
    }
    
    function timeoutForPriorityLevel(priorityLevel) {
      switch (priorityLevel) {
        case ImmediatePriority:
          return IMMEDIATE_PRIORITY_TIMEOUT;
    
        case UserBlockingPriority:
          return USER_BLOCKING_PRIORITY;
    
        case IdlePriority:
          return IDLE_PRIORITY;
    
        case LowPriority:
          return LOW_PRIORITY_TIMEOUT;
    
        case NormalPriority:
        default:
          return NORMAL_PRIORITY_TIMEOUT;
      }
    }
    
    function unstable_scheduleCallback(priorityLevel, callback, options) {
      var currentTime = exports.unstable_now();
      var startTime;
      var timeout;
    
      if (typeof options === 'object' && options !== null) {
        var delay = options.delay;
    
        if (typeof delay === 'number' && delay > 0) {
          startTime = currentTime + delay;
        } else {
          startTime = currentTime;
        }
    
        timeout = typeof options.timeout === 'number' ? options.timeout : timeoutForPriorityLevel(priorityLevel);
      } else {
        timeout = timeoutForPriorityLevel(priorityLevel);
        startTime = currentTime;
      }
    
      var expirationTime = startTime + timeout;
      var newTask = {
        id: taskIdCounter++,
        callback: callback,
        priorityLevel: priorityLevel,
        startTime: startTime,
        expirationTime: expirationTime,
        sortIndex: -1
      };
    
      if (enableProfiling) {
        newTask.isQueued = false;
      }
    
      if (startTime > currentTime) {
        // This is a delayed task.
        newTask.sortIndex = startTime;
        push(timerQueue, newTask);
    
        if (peek(taskQueue) === null && newTask === peek(timerQueue)) {
          // All tasks are delayed, and this is the task with the earliest delay.
          if (isHostTimeoutScheduled) {
            // Cancel an existing timeout.
            cancelHostTimeout();
          } else {
            isHostTimeoutScheduled = true;
          } // Schedule a timeout.
    
    
          requestHostTimeout(handleTimeout, startTime - currentTime);
        }
      } else {
        newTask.sortIndex = expirationTime;
        push(taskQueue, newTask);
    
        if (enableProfiling) {
          markTaskStart(newTask, currentTime);
          newTask.isQueued = true;
        } // Schedule a host callback, if needed. If we're already performing work,
        // wait until the next time we yield.
    
    
        if (!isHostCallbackScheduled && !isPerformingWork) {
          isHostCallbackScheduled = true;
          requestHostCallback(flushWork);
        }
      }
    
      return newTask;
    }
    
    function unstable_pauseExecution() {
      isSchedulerPaused = true;
    }
    
    function unstable_continueExecution() {
      isSchedulerPaused = false;
    
      if (!isHostCallbackScheduled && !isPerformingWork) {
        isHostCallbackScheduled = true;
        requestHostCallback(flushWork);
      }
    }
    
    function unstable_getFirstCallbackNode() {
      return peek(taskQueue);
    }
    
    function unstable_cancelCallback(task) {
      if (enableProfiling) {
        if (task.isQueued) {
          var currentTime = exports.unstable_now();
          markTaskCanceled(task, currentTime);
          task.isQueued = false;
        }
      } // Null out the callback to indicate the task has been canceled. (Can't
      // remove from the queue because you can't remove arbitrary nodes from an
      // array based heap, only the first one.)
    
    
      task.callback = null;
    }
    
    function unstable_getCurrentPriorityLevel() {
      return currentPriorityLevel;
    }
    
    function unstable_shouldYield() {
      var currentTime = exports.unstable_now();
      advanceTimers(currentTime);
      var firstTask = peek(taskQueue);
      return firstTask !== currentTask && currentTask !== null && firstTask !== null && firstTask.callback !== null && firstTask.startTime <= currentTime && firstTask.expirationTime < currentTask.expirationTime || shouldYieldToHost();
    }
    
    var unstable_requestPaint = requestPaint;
    var unstable_Profiling = enableProfiling ? {
      startLoggingProfilingEvents: startLoggingProfilingEvents,
      stopLoggingProfilingEvents: stopLoggingProfilingEvents,
      sharedProfilingBuffer: sharedProfilingBuffer
    } : null;
    
    exports.unstable_ImmediatePriority = ImmediatePriority;
    exports.unstable_UserBlockingPriority = UserBlockingPriority;
    exports.unstable_NormalPriority = NormalPriority;
    exports.unstable_IdlePriority = IdlePriority;
    exports.unstable_LowPriority = LowPriority;
    exports.unstable_runWithPriority = unstable_runWithPriority;
    exports.unstable_next = unstable_next;
    exports.unstable_scheduleCallback = unstable_scheduleCallback;
    exports.unstable_cancelCallback = unstable_cancelCallback;
    exports.unstable_wrapCallback = unstable_wrapCallback;
    exports.unstable_getCurrentPriorityLevel = unstable_getCurrentPriorityLevel;
    exports.unstable_shouldYield = unstable_shouldYield;
    exports.unstable_requestPaint = unstable_requestPaint;
    exports.unstable_continueExecution = unstable_continueExecution;
    exports.unstable_pauseExecution = unstable_pauseExecution;
    exports.unstable_getFirstCallbackNode = unstable_getFirstCallbackNode;
    exports.unstable_Profiling = unstable_Profiling;
      })();
    }
    
    
    /***/ }),
    
    /***/ "./node_modules/scheduler/index.js":
    /*!*****************************************!*\
      !*** ./node_modules/scheduler/index.js ***!
      \*****************************************/
    /*! no static exports found */
    /***/ (function(module, exports, __webpack_require__) {
    
    "use strict";
    
    
    if (false) {} else {
      module.exports = __webpack_require__(/*! ./cjs/scheduler.development.js */ "./node_modules/scheduler/cjs/scheduler.development.js");
    }
    
    
    /***/ }),
    
    /***/ "./node_modules/scheduler/tracing.js":
    /*!*******************************************!*\
      !*** ./node_modules/scheduler/tracing.js ***!
      \*******************************************/
    /*! no static exports found */
    /***/ (function(module, exports, __webpack_require__) {
    
    "use strict";
    
    
    if (false) {} else {
      module.exports = __webpack_require__(/*! ./cjs/scheduler-tracing.development.js */ "./node_modules/scheduler/cjs/scheduler-tracing.development.js");
    }
    
    
    /***/ }),
    
    /***/ "./node_modules/webpack/buildin/global.js":
    /*!***********************************!*\
      !*** (webpack)/buildin/global.js ***!
      \***********************************/
    /*! no static exports found */
    /***/ (function(module, exports) {
    
    var g;
    
    // This works in non-strict mode
    g = (function() {
        return this;
    })();
    
    try {
        // This works if eval is allowed (see CSP)
        g = g || new Function("return this")();
    } catch (e) {
        // This works if the window reference is available
        if (typeof window === "object") g = window;
    }
    
    // g can still be undefined, but nothing to do about it...
    // We return undefined, instead of nothing here, so it's
    // easier to handle this case. if(!global) { ...}
    
    module.exports = g;
    
    
    /***/ }),
    
    /***/ "./node_modules/webpack/buildin/module.js":
    /*!***********************************!*\
      !*** (webpack)/buildin/module.js ***!
      \***********************************/
    /*! no static exports found */
    /***/ (function(module, exports) {
    
    module.exports = function(module) {
        if (!module.webpackPolyfill) {
            module.deprecate = function() {};
            module.paths = [];
            // module.parent = undefined by default
            if (!module.children) module.children = [];
            Object.defineProperty(module, "loaded", {
                enumerable: true,
                get: function() {
                    return module.l;
                }
            });
            Object.defineProperty(module, "id", {
                enumerable: true,
                get: function() {
                    return module.i;
                }
            });
            module.webpackPolyfill = 1;
        }
        return module;
    };
    
    
    /***/ }),
    
    /***/ "./resources/js/app.js":
    /*!*****************************!*\
      !*** ./resources/js/app.js ***!
      \*****************************/
    /*! no static exports found */
    /***/ (function(module, exports, __webpack_require__) {
    
    /**
     * First we will load all of this project's JavaScript dependencies which
     * includes React and other helpers. It's a great starting point while
     * building robust, powerful web applications using React + Laravel.
     */
    __webpack_require__(/*! ./bootstrap */ "./resources/js/bootstrap.js");
    /**
     * Next, we will create a fresh React component instance and attach it to
     * the page. Then, you may begin adding components to this application
     * or customize the JavaScript scaffolding to fit your unique needs.
     */
    
    
    __webpack_require__(/*! ./components/Example */ "./resources/js/components/Example.js");
    
    /***/ }),
    
    /***/ "./resources/js/bootstrap.js":
    /*!***********************************!*\
      !*** ./resources/js/bootstrap.js ***!
      \***********************************/
    /*! no static exports found */
    /***/ (function(module, exports, __webpack_require__) {
    
    window._ = __webpack_require__(/*! lodash */ "./node_modules/lodash/lodash.js");
    /**
     * We'll load jQuery and the Bootstrap jQuery plugin which provides support
     * for JavaScript based Bootstrap features such as modals and tabs. This
     * code may be modified to fit the specific needs of your application.
     */
    
    try {
      window.Popper = __webpack_require__(/*! popper.js */ "./node_modules/popper.js/dist/esm/popper.js")["default"];
      window.$ = window.jQuery = __webpack_require__(/*! jquery */ "./node_modules/jquery/dist/jquery.js");
    
      __webpack_require__(/*! bootstrap */ "./node_modules/bootstrap/dist/js/bootstrap.js");
    } catch (e) {}
    /**
     * We'll load the axios HTTP library which allows us to easily issue requests
     * to our Laravel back-end. This library automatically handles sending the
     * CSRF token as a header based on the value of the "XSRF" token cookie.
     */
    
    
    window.axios = __webpack_require__(/*! axios */ "./node_modules/axios/index.js");
    window.axios.defaults.headers.common['X-Requested-With'] = 'XMLHttpRequest';
    /**
     * Next we will register the CSRF Token as a common header with Axios so that
     * all outgoing HTTP requests automatically have it attached. This is just
     * a simple convenience so we don't have to attach every token manually.
     */
    
    var token = document.head.querySelector('meta[name="csrf-token"]');
    
    if (token) {
      window.axios.defaults.headers.common['X-CSRF-TOKEN'] = token.content;
    } else {
      console.error('CSRF token not found: https://laravel.com/docs/csrf#csrf-x-csrf-token');
    }
    /**
     * Echo exposes an expressive API for subscribing to channels and listening
     * for events that are broadcast by Laravel. Echo and event broadcasting
     * allows your team to easily build robust real-time web applications.
     */
    // import Echo from 'laravel-echo'
    // window.Pusher = require('pusher-js');
    // window.Echo = new Echo({
    //     broadcaster: 'pusher',
    //     key: process.env.MIX_PUSHER_APP_KEY,
    //     cluster: process.env.MIX_PUSHER_APP_CLUSTER,
    //     encrypted: true
    // });
    
    /***/ }),
    
    /***/ "./resources/js/components/Example.js":
    /*!********************************************!*\
      !*** ./resources/js/components/Example.js ***!
      \********************************************/
    /*! exports provided: default */
    /***/ (function(module, __webpack_exports__, __webpack_require__) {
    
    "use strict";
    __webpack_require__.r(__webpack_exports__);
    /* harmony import */ var react__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! react */ "./node_modules/react/index.js");
    /* harmony import */ var react__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(react__WEBPACK_IMPORTED_MODULE_0__);
    /* harmony import */ var react_dom__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! react-dom */ "./node_modules/react-dom/index.js");
    /* harmony import */ var react_dom__WEBPACK_IMPORTED_MODULE_1___default = /*#__PURE__*/__webpack_require__.n(react_dom__WEBPACK_IMPORTED_MODULE_1__);
    
    
    
    function Example() {
      return react__WEBPACK_IMPORTED_MODULE_0___default.a.createElement("div", {
        className: "container"
      }, react__WEBPACK_IMPORTED_MODULE_0___default.a.createElement("div", {
        className: "row justify-content-center"
      }, react__WEBPACK_IMPORTED_MODULE_0___default.a.createElement("div", {
        className: "col-md-8"
      }, react__WEBPACK_IMPORTED_MODULE_0___default.a.createElement("div", {
        className: "card"
      }, react__WEBPACK_IMPORTED_MODULE_0___default.a.createElement("div", {
        className: "card-header"
      }, "Example Component"), react__WEBPACK_IMPORTED_MODULE_0___default.a.createElement("div", {
        className: "card-body"
      }, "I'm an example component!")))));
    }
    
    /* harmony default export */ __webpack_exports__["default"] = (Example);
    
    if (document.getElementById('example')) {
      react_dom__WEBPACK_IMPORTED_MODULE_1___default.a.render(react__WEBPACK_IMPORTED_MODULE_0___default.a.createElement(Example, null), document.getElementById('example'));
    }
    
    /***/ }),
    
    /***/ "./resources/sass/app.scss":
    /*!*********************************!*\
      !*** ./resources/sass/app.scss ***!
      \*********************************/
    /*! no static exports found */
    /***/ (function(module, exports) {
    
    // removed by extract-text-webpack-plugin
    
    /***/ }),
    
    /***/ 0:
    /*!*************************************************************!*\
      !*** multi ./resources/js/app.js ./resources/sass/app.scss ***!
      \*************************************************************/
    /*! no static exports found */
    /***/ (function(module, exports, __webpack_require__) {
    
    __webpack_require__(/*! F:\xampp\htdocs\testLaravel\resources\js\app.js */"./resources/js/app.js");
    module.exports = __webpack_require__(/*! F:\xampp\htdocs\testLaravel\resources\sass\app.scss */"./resources/sass/app.scss");
    
    
    /***/ })
    
    /******/ });