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Z=this.createVisitId();this.activeVisit=r({},Y,{onCancelToken:C,onBefore:A,onStart:R,onProgress:D,onFinish:q,onCancel:H,onSuccess:G,onError:X,queryStringArrayFormat:K,cancelToken:t.CancelToken.source()}),C({cancel:function(){i.activeVisit&&i.cancelVisit(i.activeVisit,{cancelled:!0})}}),function(e){f("start",{detail:{visit:e}})}(Y),R(Y),t({method:l,url:p(_).href,data:l===exports.Method.GET?{}:v,params:l===exports.Method.GET?v:{},cancelToken:this.activeVisit.cancelToken.token,headers:r({},x,{Accept:"text/html, application/xhtml+xml","X-Requested-With":"XMLHttpRequest","X-Inertia":!0},P.length?{"X-Inertia-Partial-Component":this.page.component,"X-Inertia-Partial-Data":P.join(",")}:{},T&&T.length?{"X-Inertia-Error-Bag":T}:{},this.page.version?{"X-Inertia-Version":this.page.version}:{}),onUploadProgress:function(e){v instanceof FormData&&(e.percentage=Math.round(e.loaded/e.total*100),function(e){f("progress",{detail:{progress:e}})}(e),D(e))}}).then(function(e){var 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t=u(e.response.headers["x-inertia-location"]),n=_;n.hash&&!t.hash&&p(n).href===t.href&&(t.hash=n.hash),i.locationVisit(t,!0===y)}else{if(!e.response)return Promise.reject(e);f("invalid",{cancelable:!0,detail:{response:e.response}})&&s.show(e.response.data)}}).then(function(){i.activeVisit&&i.finishVisit(i.activeVisit)}).catch(function(e){if(!t.isCancel(e)){var n=f("exception",{cancelable:!0,detail:{exception:e}});if(i.activeVisit&&i.finishVisit(i.activeVisit),n)return Promise.reject(e)}})}},n.setPage=function(e,t){var n=this,i=void 0===t?{}:t,r=i.visitId,o=void 0===r?this.createVisitId():r,s=i.replace,a=void 0!==s&&s,c=i.preserveScroll,l=void 0!==c&&c,d=i.preserveState,h=void 0!==d&&d;return Promise.resolve(this.resolveComponent(e.component)).then(function(t){o===n.visitId&&(e.scrollRegions=e.scrollRegions||[],e.rememberedState=e.rememberedState||{},(a=a||u(e.url).href===window.location.href)?n.replaceState(e):n.pushState(e),n.swapComponent({component:t,page:e,preserveState:h}).then(function(){l||n.resetScrollPositions(),a||m(e)}))})},n.pushState=function(e){this.page=e,window.history.pushState(e,"",e.url)},n.replaceState=function(e){this.page=e,window.history.replaceState(e,"",e.url)},n.handlePopstateEvent=function(e){var t=this;if(null!==e.state){var n=e.state,i=this.createVisitId();Promise.resolve(this.resolveComponent(n.component)).then(function(e){i===t.visitId&&(t.page=n,t.swapComponent({component:e,page:n,preserveState:!1}).then(function(){t.restoreScrollPositions(),m(n)}))})}else{var o=u(this.page.url);o.hash=window.location.hash,this.replaceState(r({},this.page,{url:o.href})),this.resetScrollPositions()}},n.get=function(e,t,n){return void 0===t&&(t={}),void 0===n&&(n={}),this.visit(e,r({},n,{method:exports.Method.GET,data:t}))},n.reload=function(e){return void 0===e&&(e={}),this.visit(window.location.href,r({},e,{preserveScroll:!0,preserveState:!0}))},n.replace=function(e,t){var n;return void 0===t&&(t={}),console.warn("Inertia.replace() has been deprecated and will be removed in a future release. Please use Inertia."+(null!=(n=t.method)?n:"get")+"() instead."),this.visit(e,r({preserveState:!0},t,{replace:!0}))},n.post=function(e,t,n){return void 0===t&&(t={}),void 0===n&&(n={}),this.visit(e,r({preserveState:!0},n,{method:exports.Method.POST,data:t}))},n.put=function(e,t,n){return void 0===t&&(t={}),void 0===n&&(n={}),this.visit(e,r({preserveState:!0},n,{method:exports.Method.PUT,data:t}))},n.patch=function(e,t,n){return void 0===t&&(t={}),void 0===n&&(n={}),this.visit(e,r({preserveState:!0},n,{method:exports.Method.PATCH,data:t}))},n.delete=function(e,t){return void 0===t&&(t={}),this.visit(e,r({preserveState:!0},t,{method:exports.Method.DELETE}))},n.remember=function(e,t){var n,i;void 0===t&&(t="default"),g||this.replaceState(r({},this.page,{rememberedState:r({},null==(n=this.page)?void 0:n.rememberedState,(i={},i[t]=e,i))}))},n.restore=function(e){var t,n;if(void 0===e&&(e="default"),!g)return null==(t=window.history.state)||null==(n=t.rememberedState)?void 0:n[e]},n.on=function(e,t){var n=function(e){var n=t(e);e.cancelable&&!e.defaultPrevented&&!1===n&&e.preventDefault()};return document.addEventListener("inertia:"+e,n),function(){return document.removeEventListener("inertia:"+e,n)}},e}(),y={buildDOMElement:function(e){var t=document.createElement("template");t.innerHTML=e;var n=t.content.firstChild;if(!e.startsWith("<script "))return n;var i=document.createElement("script");return i.innerHTML=n.innerHTML,n.getAttributeNames().forEach(function(e){i.setAttribute(e,n.getAttribute(e)||"")}),i},isInertiaManagedElement:function(e){return e.nodeType===Node.ELEMENT_NODE&&null!==e.getAttribute("inertia")},findMatchingElementIndex:function(e,t){var n=e.getAttribute("inertia");return null!==n?t.findIndex(function(e){return e.getAttribute("inertia")===n}):-1},update:a(function(e){var t=this,n=e.map(function(e){return t.buildDOMElement(e)});Array.from(document.head.childNodes).filter(function(e){return t.isInertiaManagedElement(e)}).forEach(function(e){var i=t.findMatchingElementIndex(e,n);if(-1!==i){var r,o=n.splice(i,1)[0];o&&!e.isEqualNode(o)&&(null==e||null==(r=e.parentNode)||r.replaceChild(o,e))}else{var s;null==e||null==(s=e.parentNode)||s.removeChild(e)}}),n.forEach(function(e){return document.head.appendChild(e)})},1)},S=new w;exports.Inertia=S,exports.createHeadManager=function(e,t,n){var i={},r=0;function o(){var e=Object.values(i).reduce(function(e,t){return e.concat(t)},[]).reduce(function(e,n){if(-1===n.indexOf("<"))return e;if(0===n.indexOf("<title ")){var i=n.match(/(<title [^>]+>)(.*?)(<\/title>)/);return e.title=i?""+i[1]+t(i[2])+i[3]:n,e}var r=n.match(/ inertia="[^"]+"/);return r?e[r[0]]=n:e[Object.keys(e).length]=n,e},{});return Object.values(e)}function s(){e?n(o()):y.update(o())}return{createProvider:function(){var e=function(){var e=r+=1;return i[e]=[],e.toString()}();return{update:function(t){return function(e,t){void 0===t&&(t=[]),null!==e&&Object.keys(i).indexOf(e)>-1&&(i[e]=t),s()}(e,t)},disconnect:function(){return function(e){null!==e&&-1!==Object.keys(i).indexOf(e)&&(delete i[e],s())}(e)}}}}},exports.hrefToUrl=u,exports.mergeDataIntoQueryString=h,exports.shouldIntercept=function(e){var t="a"===e.currentTarget.tagName.toLowerCase();return!(e.target&&null!=e&&e.target.isContentEditable||e.defaultPrevented||t&&e.which>1||t&&e.altKey||t&&e.ctrlKey||t&&e.metaKey||t&&e.shiftKey)},exports.urlWithoutHash=p;
  //# sourceMappingURL=index.js.map
  
  
  /***/ }),
  
  /***/ "./node_modules/axios/index.js":
  /*!*************************************!*\
    !*** ./node_modules/axios/index.js ***!
    \*************************************/
  /***/ ((module, __unused_webpack_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 ***!
    \************************************************/
  /***/ ((module, __unused_webpack_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 cookies = __webpack_require__(/*! ./../helpers/cookies */ "./node_modules/axios/lib/helpers/cookies.js");
  var buildURL = __webpack_require__(/*! ./../helpers/buildURL */ "./node_modules/axios/lib/helpers/buildURL.js");
  var buildFullPath = __webpack_require__(/*! ../core/buildFullPath */ "./node_modules/axios/lib/core/buildFullPath.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;
      var responseType = config.responseType;
  
      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 ? unescape(encodeURIComponent(config.auth.password)) : '';
        requestHeaders.Authorization = 'Basic ' + btoa(username + ':' + password);
      }
  
      var fullPath = buildFullPath(config.baseURL, config.url);
      request.open(config.method.toUpperCase(), buildURL(fullPath, config.params, config.paramsSerializer), true);
  
      // Set the request timeout in MS
      request.timeout = config.timeout;
  
      function onloadend() {
        if (!request) {
          return;
        }
        // Prepare the response
        var responseHeaders = 'getAllResponseHeaders' in request ? parseHeaders(request.getAllResponseHeaders()) : null;
        var responseData = !responseType || responseType === 'text' ||  responseType === 'json' ?
          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;
      }
  
      if ('onloadend' in request) {
        // Use onloadend if available
        request.onloadend = onloadend;
      } else {
        // Listen for ready state to emulate onloadend
        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;
          }
          // readystate handler is calling before onerror or ontimeout handlers,
          // so we should call onloadend on the next 'tick'
          setTimeout(onloadend);
        };
      }
  
      // 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() {
        var timeoutErrorMessage = 'timeout of ' + config.timeout + 'ms exceeded';
        if (config.timeoutErrorMessage) {
          timeoutErrorMessage = config.timeoutErrorMessage;
        }
        reject(createError(
          timeoutErrorMessage,
          config,
          config.transitional && config.transitional.clarifyTimeoutError ? 'ETIMEDOUT' : '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()) {
        // Add xsrf header
        var xsrfValue = (config.withCredentials || isURLSameOrigin(fullPath)) && 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 (!utils.isUndefined(config.withCredentials)) {
        request.withCredentials = !!config.withCredentials;
      }
  
      // Add responseType to request if needed
      if (responseType && responseType !== 'json') {
        request.responseType = config.responseType;
      }
  
      // 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) {
        requestData = null;
      }
  
      // Send the request
      request.send(requestData);
    });
  };
  
  
  /***/ }),
  
  /***/ "./node_modules/axios/lib/axios.js":
  /*!*****************************************!*\
    !*** ./node_modules/axios/lib/axios.js ***!
    \*****************************************/
  /***/ ((module, __unused_webpack_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");
  
  // Expose isAxiosError
  axios.isAxiosError = __webpack_require__(/*! ./helpers/isAxiosError */ "./node_modules/axios/lib/helpers/isAxiosError.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 ***!
    \*************************************************/
  /***/ ((module) => {
  
  "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 ***!
    \******************************************************/
  /***/ ((module, __unused_webpack_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 ***!
    \***************************************************/
  /***/ ((module) => {
  
  "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 ***!
    \**********************************************/
  /***/ ((module, __unused_webpack_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");
  var validator = __webpack_require__(/*! ../helpers/validator */ "./node_modules/axios/lib/helpers/validator.js");
  
  var validators = validator.validators;
  /**
   * 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);
  
    // Set config.method
    if (config.method) {
      config.method = config.method.toLowerCase();
    } else if (this.defaults.method) {
      config.method = this.defaults.method.toLowerCase();
    } else {
      config.method = 'get';
    }
  
    var transitional = config.transitional;
  
    if (transitional !== undefined) {
      validator.assertOptions(transitional, {
        silentJSONParsing: validators.transitional(validators.boolean, '1.0.0'),
        forcedJSONParsing: validators.transitional(validators.boolean, '1.0.0'),
        clarifyTimeoutError: validators.transitional(validators.boolean, '1.0.0')
      }, false);
    }
  
    // filter out skipped interceptors
    var requestInterceptorChain = [];
    var synchronousRequestInterceptors = true;
    this.interceptors.request.forEach(function unshiftRequestInterceptors(interceptor) {
      if (typeof interceptor.runWhen === 'function' && interceptor.runWhen(config) === false) {
        return;
      }
  
      synchronousRequestInterceptors = synchronousRequestInterceptors && interceptor.synchronous;
  
      requestInterceptorChain.unshift(interceptor.fulfilled, interceptor.rejected);
    });
  
    var responseInterceptorChain = [];
    this.interceptors.response.forEach(function pushResponseInterceptors(interceptor) {
      responseInterceptorChain.push(interceptor.fulfilled, interceptor.rejected);
    });
  
    var promise;
  
    if (!synchronousRequestInterceptors) {
      var chain = [dispatchRequest, undefined];
  
      Array.prototype.unshift.apply(chain, requestInterceptorChain);
      chain = chain.concat(responseInterceptorChain);
  
      promise = Promise.resolve(config);
      while (chain.length) {
        promise = promise.then(chain.shift(), chain.shift());
      }
  
      return promise;
    }
  
  
    var newConfig = config;
    while (requestInterceptorChain.length) {
      var onFulfilled = requestInterceptorChain.shift();
      var onRejected = requestInterceptorChain.shift();
      try {
        newConfig = onFulfilled(newConfig);
      } catch (error) {
        onRejected(error);
        break;
      }
    }
  
    try {
      promise = dispatchRequest(newConfig);
    } catch (error) {
      return Promise.reject(error);
    }
  
    while (responseInterceptorChain.length) {
      promise = promise.then(responseInterceptorChain.shift(), responseInterceptorChain.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(mergeConfig(config || {}, {
        method: method,
        url: url,
        data: (config || {}).data
      }));
    };
  });
  
  utils.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) {
    /*eslint func-names:0*/
    Axios.prototype[method] = function(url, data, config) {
      return this.request(mergeConfig(config || {}, {
        method: method,
        url: url,
        data: data
      }));
    };
  });
  
  module.exports = Axios;
  
  
  /***/ }),
  
  /***/ "./node_modules/axios/lib/core/InterceptorManager.js":
  /*!***********************************************************!*\
    !*** ./node_modules/axios/lib/core/InterceptorManager.js ***!
    \***********************************************************/
  /***/ ((module, __unused_webpack_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, options) {
    this.handlers.push({
      fulfilled: fulfilled,
      rejected: rejected,
      synchronous: options ? options.synchronous : false,
      runWhen: options ? options.runWhen : null
    });
    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/buildFullPath.js":
  /*!******************************************************!*\
    !*** ./node_modules/axios/lib/core/buildFullPath.js ***!
    \******************************************************/
  /***/ ((module, __unused_webpack_exports, __webpack_require__) => {
  
  "use strict";
  
  
  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");
  
  /**
   * Creates a new URL by combining the baseURL with the requestedURL,
   * only when the requestedURL is not already an absolute URL.
   * If the requestURL is absolute, this function returns the requestedURL untouched.
   *
   * @param {string} baseURL The base URL
   * @param {string} requestedURL Absolute or relative URL to combine
   * @returns {string} The combined full path
   */
  module.exports = function buildFullPath(baseURL, requestedURL) {
    if (baseURL && !isAbsoluteURL(requestedURL)) {
      return combineURLs(baseURL, requestedURL);
    }
    return requestedURL;
  };
  
  
  /***/ }),
  
  /***/ "./node_modules/axios/lib/core/createError.js":
  /*!****************************************************!*\
    !*** ./node_modules/axios/lib/core/createError.js ***!
    \****************************************************/
  /***/ ((module, __unused_webpack_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 ***!
    \********************************************************/
  /***/ ((module, __unused_webpack_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");
  
  /**
   * 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);
  
    // Ensure headers exist
    config.headers = config.headers || {};
  
    // Transform request data
    config.data = transformData.call(
      config,
      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.call(
        config,
        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.call(
            config,
            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 ***!
    \*****************************************************/
  /***/ ((module) => {
  
  "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 toJSON() {
      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 ***!
    \****************************************************/
  /***/ ((module, __unused_webpack_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 = {};
  
    var valueFromConfig2Keys = ['url', 'method', 'data'];
    var mergeDeepPropertiesKeys = ['headers', 'auth', 'proxy', 'params'];
    var defaultToConfig2Keys = [
      'baseURL', 'transformRequest', 'transformResponse', 'paramsSerializer',
      'timeout', 'timeoutMessage', 'withCredentials', 'adapter', 'responseType', 'xsrfCookieName',
      'xsrfHeaderName', 'onUploadProgress', 'onDownloadProgress', 'decompress',
      'maxContentLength', 'maxBodyLength', 'maxRedirects', 'transport', 'httpAgent',
      'httpsAgent', 'cancelToken', 'socketPath', 'responseEncoding'
    ];
    var directMergeKeys = ['validateStatus'];
  
    function getMergedValue(target, source) {
      if (utils.isPlainObject(target) && utils.isPlainObject(source)) {
        return utils.merge(target, source);
      } else if (utils.isPlainObject(source)) {
        return utils.merge({}, source);
      } else if (utils.isArray(source)) {
        return source.slice();
      }
      return source;
    }
  
    function mergeDeepProperties(prop) {
      if (!utils.isUndefined(config2[prop])) {
        config[prop] = getMergedValue(config1[prop], config2[prop]);
      } else if (!utils.isUndefined(config1[prop])) {
        config[prop] = getMergedValue(undefined, config1[prop]);
      }
    }
  
    utils.forEach(valueFromConfig2Keys, function valueFromConfig2(prop) {
      if (!utils.isUndefined(config2[prop])) {
        config[prop] = getMergedValue(undefined, config2[prop]);
      }
    });
  
    utils.forEach(mergeDeepPropertiesKeys, mergeDeepProperties);
  
    utils.forEach(defaultToConfig2Keys, function defaultToConfig2(prop) {
      if (!utils.isUndefined(config2[prop])) {
        config[prop] = getMergedValue(undefined, config2[prop]);
      } else if (!utils.isUndefined(config1[prop])) {
        config[prop] = getMergedValue(undefined, config1[prop]);
      }
    });
  
    utils.forEach(directMergeKeys, function merge(prop) {
      if (prop in config2) {
        config[prop] = getMergedValue(config1[prop], config2[prop]);
      } else if (prop in config1) {
        config[prop] = getMergedValue(undefined, config1[prop]);
      }
    });
  
    var axiosKeys = valueFromConfig2Keys
      .concat(mergeDeepPropertiesKeys)
      .concat(defaultToConfig2Keys)
      .concat(directMergeKeys);
  
    var otherKeys = Object
      .keys(config1)
      .concat(Object.keys(config2))
      .filter(function filterAxiosKeys(key) {
        return axiosKeys.indexOf(key) === -1;
      });
  
    utils.forEach(otherKeys, mergeDeepProperties);
  
    return config;
  };
  
  
  /***/ }),
  
  /***/ "./node_modules/axios/lib/core/settle.js":
  /*!***********************************************!*\
    !*** ./node_modules/axios/lib/core/settle.js ***!
    \***********************************************/
  /***/ ((module, __unused_webpack_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 (!response.status || !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 ***!
    \******************************************************/
  /***/ ((module, __unused_webpack_exports, __webpack_require__) => {
  
  "use strict";
  
  
  var utils = __webpack_require__(/*! ./../utils */ "./node_modules/axios/lib/utils.js");
  var defaults = __webpack_require__(/*! ./../defaults */ "./node_modules/axios/lib/defaults.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) {
    var context = this || defaults;
    /*eslint no-param-reassign:0*/
    utils.forEach(fns, function transform(fn) {
      data = fn.call(context, data, headers);
    });
  
    return data;
  };
  
  
  /***/ }),
  
  /***/ "./node_modules/axios/lib/defaults.js":
  /*!********************************************!*\
    !*** ./node_modules/axios/lib/defaults.js ***!
    \********************************************/
  /***/ ((module, __unused_webpack_exports, __webpack_require__) => {
  
  "use strict";
  /* provided dependency */ var process = __webpack_require__(/*! process/browser.js */ "./node_modules/process/browser.js");
  
  
  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 enhanceError = __webpack_require__(/*! ./core/enhanceError */ "./node_modules/axios/lib/core/enhanceError.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;
    if (typeof XMLHttpRequest !== 'undefined') {
      // For browsers use XHR adapter
      adapter = __webpack_require__(/*! ./adapters/xhr */ "./node_modules/axios/lib/adapters/xhr.js");
    } else 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");
    }
    return adapter;
  }
  
  function stringifySafely(rawValue, parser, encoder) {
    if (utils.isString(rawValue)) {
      try {
        (parser || JSON.parse)(rawValue);
        return utils.trim(rawValue);
      } catch (e) {
        if (e.name !== 'SyntaxError') {
          throw e;
        }
      }
    }
  
    return (encoder || JSON.stringify)(rawValue);
  }
  
  var defaults = {
  
    transitional: {
      silentJSONParsing: true,
      forcedJSONParsing: true,
      clarifyTimeoutError: false
    },
  
    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) || (headers && headers['Content-Type'] === 'application/json')) {
        setContentTypeIfUnset(headers, 'application/json');
        return stringifySafely(data);
      }
      return data;
    }],
  
    transformResponse: [function transformResponse(data) {
      var transitional = this.transitional;
      var silentJSONParsing = transitional && transitional.silentJSONParsing;
      var forcedJSONParsing = transitional && transitional.forcedJSONParsing;
      var strictJSONParsing = !silentJSONParsing && this.responseType === 'json';
  
      if (strictJSONParsing || (forcedJSONParsing && utils.isString(data) && data.length)) {
        try {
          return JSON.parse(data);
        } catch (e) {
          if (strictJSONParsing) {
            if (e.name === 'SyntaxError') {
              throw enhanceError(e, this, 'E_JSON_PARSE');
            }
            throw e;
          }
        }
      }
  
      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,
    maxBodyLength: -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;
  
  
  /***/ }),
  
  /***/ "./node_modules/axios/lib/helpers/bind.js":
  /*!************************************************!*\
    !*** ./node_modules/axios/lib/helpers/bind.js ***!
    \************************************************/
  /***/ ((module) => {
  
  "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 ***!
    \****************************************************/
  /***/ ((module, __unused_webpack_exports, __webpack_require__) => {
  
  "use strict";
  
  
  var utils = __webpack_require__(/*! ./../utils */ "./node_modules/axios/lib/utils.js");
  
  function encode(val) {
    return encodeURIComponent(val).
      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 ***!
    \*******************************************************/
  /***/ ((module) => {
  
  "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 ***!
    \***************************************************/
  /***/ ((module, __unused_webpack_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 ***!
    \*********************************************************/
  /***/ ((module) => {
  
  "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/isAxiosError.js":
  /*!********************************************************!*\
    !*** ./node_modules/axios/lib/helpers/isAxiosError.js ***!
    \********************************************************/
  /***/ ((module) => {
  
  "use strict";
  
  
  /**
   * Determines whether the payload is an error thrown by Axios
   *
   * @param {*} payload The value to test
   * @returns {boolean} True if the payload is an error thrown by Axios, otherwise false
   */
  module.exports = function isAxiosError(payload) {
    return (typeof payload === 'object') && (payload.isAxiosError === true);
  };
  
  
  /***/ }),
  
  /***/ "./node_modules/axios/lib/helpers/isURLSameOrigin.js":
  /*!***********************************************************!*\
    !*** ./node_modules/axios/lib/helpers/isURLSameOrigin.js ***!
    \***********************************************************/
  /***/ ((module, __unused_webpack_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 ***!
    \***************************************************************/
  /***/ ((module, __unused_webpack_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 ***!
    \********************************************************/
  /***/ ((module, __unused_webpack_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 ***!
    \**************************************************/
  /***/ ((module) => {
  
  "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/helpers/validator.js":
  /*!*****************************************************!*\
    !*** ./node_modules/axios/lib/helpers/validator.js ***!
    \*****************************************************/
  /***/ ((module, __unused_webpack_exports, __webpack_require__) => {
  
  "use strict";
  
  
  var pkg = __webpack_require__(/*! ./../../package.json */ "./node_modules/axios/package.json");
  
  var validators = {};
  
  // eslint-disable-next-line func-names
  ['object', 'boolean', 'number', 'function', 'string', 'symbol'].forEach(function(type, i) {
    validators[type] = function validator(thing) {
      return typeof thing === type || 'a' + (i < 1 ? 'n ' : ' ') + type;
    };
  });
  
  var deprecatedWarnings = {};
  var currentVerArr = pkg.version.split('.');
  
  /**
   * Compare package versions
   * @param {string} version
   * @param {string?} thanVersion
   * @returns {boolean}
   */
  function isOlderVersion(version, thanVersion) {
    var pkgVersionArr = thanVersion ? thanVersion.split('.') : currentVerArr;
    var destVer = version.split('.');
    for (var i = 0; i < 3; i++) {
      if (pkgVersionArr[i] > destVer[i]) {
        return true;
      } else if (pkgVersionArr[i] < destVer[i]) {
        return false;
      }
    }
    return false;
  }
  
  /**
   * Transitional option validator
   * @param {function|boolean?} validator
   * @param {string?} version
   * @param {string} message
   * @returns {function}
   */
  validators.transitional = function transitional(validator, version, message) {
    var isDeprecated = version && isOlderVersion(version);
  
    function formatMessage(opt, desc) {
      return '[Axios v' + pkg.version + '] Transitional option \'' + opt + '\'' + desc + (message ? '. ' + message : '');
    }
  
    // eslint-disable-next-line func-names
    return function(value, opt, opts) {
      if (validator === false) {
        throw new Error(formatMessage(opt, ' has been removed in ' + version));
      }
  
      if (isDeprecated && !deprecatedWarnings[opt]) {
        deprecatedWarnings[opt] = true;
        // eslint-disable-next-line no-console
        console.warn(
          formatMessage(
            opt,
            ' has been deprecated since v' + version + ' and will be removed in the near future'
          )
        );
      }
  
      return validator ? validator(value, opt, opts) : true;
    };
  };
  
  /**
   * Assert object's properties type
   * @param {object} options
   * @param {object} schema
   * @param {boolean?} allowUnknown
   */
  
  function assertOptions(options, schema, allowUnknown) {
    if (typeof options !== 'object') {
      throw new TypeError('options must be an object');
    }
    var keys = Object.keys(options);
    var i = keys.length;
    while (i-- > 0) {
      var opt = keys[i];
      var validator = schema[opt];
      if (validator) {
        var value = options[opt];
        var result = value === undefined || validator(value, opt, options);
        if (result !== true) {
          throw new TypeError('option ' + opt + ' must be ' + result);
        }
        continue;
      }
      if (allowUnknown !== true) {
        throw Error('Unknown option ' + opt);
      }
    }
  }
  
  module.exports = {
    isOlderVersion: isOlderVersion,
    assertOptions: assertOptions,
    validators: validators
  };
  
  
  /***/ }),
  
  /***/ "./node_modules/axios/lib/utils.js":
  /*!*****************************************!*\
    !*** ./node_modules/axios/lib/utils.js ***!
    \*****************************************/
  /***/ ((module, __unused_webpack_exports, __webpack_require__) => {
  
  "use strict";
  
  
  var bind = __webpack_require__(/*! ./helpers/bind */ "./node_modules/axios/lib/helpers/bind.js");
  
  // 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 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 a Buffer
   *
   * @param {Object} val The value to test
   * @returns {boolean} True if value is a Buffer, otherwise false
   */
  function isBuffer(val) {
    return val !== null && !isUndefined(val) && val.constructor !== null && !isUndefined(val.constructor)
      && typeof val.constructor.isBuffer === 'function' && val.constructor.isBuffer(val);
  }
  
  /**
   * 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 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 plain Object
   *
   * @param {Object} val The value to test
   * @return {boolean} True if value is a plain Object, otherwise false
   */
  function isPlainObject(val) {
    if (toString.call(val) !== '[object Object]') {
      return false;
    }
  
    var prototype = Object.getPrototypeOf(val);
    return prototype === null || prototype === Object.prototype;
  }
  
  /**
   * 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.trim ? str.trim() : str.replace(/^\s+|\s+$/g, '');
  }
  
  /**
   * 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 (isPlainObject(result[key]) && isPlainObject(val)) {
        result[key] = merge(result[key], val);
      } else if (isPlainObject(val)) {
        result[key] = merge({}, val);
      } else if (isArray(val)) {
        result[key] = val.slice();
      } 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;
  }
  
  /**
   * Remove byte order marker. This catches EF BB BF (the UTF-8 BOM)
   *
   * @param {string} content with BOM
   * @return {string} content value without BOM
   */
  function stripBOM(content) {
    if (content.charCodeAt(0) === 0xFEFF) {
      content = content.slice(1);
    }
    return content;
  }
  
  module.exports = {
    isArray: isArray,
    isArrayBuffer: isArrayBuffer,
    isBuffer: isBuffer,
    isFormData: isFormData,
    isArrayBufferView: isArrayBufferView,
    isString: isString,
    isNumber: isNumber,
    isObject: isObject,
    isPlainObject: isPlainObject,
    isUndefined: isUndefined,
    isDate: isDate,
    isFile: isFile,
    isBlob: isBlob,
    isFunction: isFunction,
    isStream: isStream,
    isURLSearchParams: isURLSearchParams,
    isStandardBrowserEnv: isStandardBrowserEnv,
    forEach: forEach,
    merge: merge,
    extend: extend,
    trim: trim,
    stripBOM: stripBOM
  };
  
  
  /***/ }),
  
  /***/ "./resources/js/app.js":
  /*!*****************************!*\
    !*** ./resources/js/app.js ***!
    \*****************************/
  /***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {
  
  "use strict";
  __webpack_require__.r(__webpack_exports__);
  /* harmony import */ var vue__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! vue */ "./node_modules/vue/dist/vue.esm.js");
  /* harmony import */ var _inertiajs_inertia_vue__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! @inertiajs/inertia-vue */ "./node_modules/@inertiajs/inertia-vue/dist/index.js");
  /* harmony import */ var _store_index__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./store/index */ "./resources/js/store/index.js");
  /**
   * First we will load all of this project's JavaScript dependencies which
   * includes Vue and other libraries. It is a great starting point when
   * building robust, powerful web applications using Vue and Laravel.
   */
  // require('./bootstrap');
  
  
  
  (0,_inertiajs_inertia_vue__WEBPACK_IMPORTED_MODULE_0__.createInertiaApp)({
    resolve: function resolve(name) {
      return __webpack_require__("./resources/js/Pages lazy recursive ^\\.\\/.*$")("./".concat(name));
    },
    setup: function setup(_ref) {
      var el = _ref.el,
          App = _ref.App,
          props = _ref.props,
          plugin = _ref.plugin;
      vue__WEBPACK_IMPORTED_MODULE_2__["default"].use(plugin);
      new vue__WEBPACK_IMPORTED_MODULE_2__["default"]({
        render: function render(h) {
          return h(App, props);
        },
        store: _store_index__WEBPACK_IMPORTED_MODULE_1__["default"]
      }).$mount(el);
    }
  }); // window.Vue = require('vue').default;
  
  /**
   * The following block of code may be used to automatically register your
   * Vue components. It will recursively scan this directory for the Vue
   * components and automatically register them with their "basename".
   *
   * Eg. ./components/ExampleComponent.vue -> <example-component></example-component>
   */
  // const files = require.context('./', true, /\.vue$/i)
  // files.keys().map(key => Vue.component(key.split('/').pop().split('.')[0], files(key).default))
  // Vue.component('example-component', require('./components/ExampleComponent.vue').default);
  
  /**
   * Next, we will create a fresh Vue application 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.
   */
  // const app = new Vue({
  //     el: '#app',
  // });
  
  /***/ }),
  
  /***/ "./resources/js/store/index.js":
  /*!*************************************!*\
    !*** ./resources/js/store/index.js ***!
    \*************************************/
  /***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {
  
  "use strict";
  __webpack_require__.r(__webpack_exports__);
  /* harmony export */ __webpack_require__.d(__webpack_exports__, {
  /* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
  /* harmony export */ });
  /* harmony import */ var vue__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! vue */ "./node_modules/vue/dist/vue.esm.js");
  /* harmony import */ var vuex__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! vuex */ "./node_modules/vuex/dist/vuex.esm.js");
  /* harmony import */ var _modules_postStore__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./modules/postStore */ "./resources/js/store/modules/postStore.js");
  
  
  
  vue__WEBPACK_IMPORTED_MODULE_1__["default"].use(vuex__WEBPACK_IMPORTED_MODULE_2__["default"]);
  /* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = (new vuex__WEBPACK_IMPORTED_MODULE_2__["default"].Store({
    modules: {
      postStore: _modules_postStore__WEBPACK_IMPORTED_MODULE_0__["default"]
    },
    state: {},
    mutations: {},
    actions: {}
  }));
  
  /***/ }),
  
  /***/ "./resources/js/store/modules/postStore.js":
  /*!*************************************************!*\
    !*** ./resources/js/store/modules/postStore.js ***!
    \*************************************************/
  /***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {
  
  "use strict";
  __webpack_require__.r(__webpack_exports__);
  /* harmony export */ __webpack_require__.d(__webpack_exports__, {
  /* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
  /* harmony export */ });
  /* harmony import */ var axios__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! axios */ "./node_modules/axios/index.js");
  /* harmony import */ var axios__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(axios__WEBPACK_IMPORTED_MODULE_0__);
  
  /* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = ({
    namespaced: true,
    state: {
      posts: []
    },
    mutations: {
      SET_POSTS: function SET_POSTS(state, posts) {
        state.posts = posts;
      },
      ADD_POST: function ADD_POST(state, postPayload) {
        state.posts.push(postPayload);
      }
    },
    actions: {
      storePost: function storePost(_ref, postPayload) {
        var commit = _ref.commit;
        axios__WEBPACK_IMPORTED_MODULE_0___default().post('', postPayload).then(function (response) {
          return response.data;
        }).then(function (respose) {
          commit('ADD_POST', respose.data);
        });
      },
      updatePost: function updatePost(_ref2, postPayload) {
        var commit = _ref2.commit;
        axios__WEBPACK_IMPORTED_MODULE_0___default().put('', postPayload).then(function (response) {
          return response.data;
        }).then(function (response) {
          return console.log(respose);
        });
      }
    },
    getters: {
      allPosts: function allPosts(state) {
        return state.posts;
      }
    }
  });
  
  /***/ }),
  
  /***/ "./node_modules/call-bind/callBound.js":
  /*!*********************************************!*\
    !*** ./node_modules/call-bind/callBound.js ***!
    \*********************************************/
  /***/ ((module, __unused_webpack_exports, __webpack_require__) => {
  
  "use strict";
  
  
  var GetIntrinsic = __webpack_require__(/*! get-intrinsic */ "./node_modules/get-intrinsic/index.js");
  
  var callBind = __webpack_require__(/*! ./ */ "./node_modules/call-bind/index.js");
  
  var $indexOf = callBind(GetIntrinsic('String.prototype.indexOf'));
  
  module.exports = function callBoundIntrinsic(name, allowMissing) {
  	var intrinsic = GetIntrinsic(name, !!allowMissing);
  	if (typeof intrinsic === 'function' && $indexOf(name, '.prototype.') > -1) {
  		return callBind(intrinsic);
  	}
  	return intrinsic;
  };
  
  
  /***/ }),
  
  /***/ "./node_modules/call-bind/index.js":
  /*!*****************************************!*\
    !*** ./node_modules/call-bind/index.js ***!
    \*****************************************/
  /***/ ((module, __unused_webpack_exports, __webpack_require__) => {
  
  "use strict";
  
  
  var bind = __webpack_require__(/*! function-bind */ "./node_modules/function-bind/index.js");
  var GetIntrinsic = __webpack_require__(/*! get-intrinsic */ "./node_modules/get-intrinsic/index.js");
  
  var $apply = GetIntrinsic('%Function.prototype.apply%');
  var $call = GetIntrinsic('%Function.prototype.call%');
  var $reflectApply = GetIntrinsic('%Reflect.apply%', true) || bind.call($call, $apply);
  
  var $gOPD = GetIntrinsic('%Object.getOwnPropertyDescriptor%', true);
  var $defineProperty = GetIntrinsic('%Object.defineProperty%', true);
  var $max = GetIntrinsic('%Math.max%');
  
  if ($defineProperty) {
  	try {
  		$defineProperty({}, 'a', { value: 1 });
  	} catch (e) {
  		// IE 8 has a broken defineProperty
  		$defineProperty = null;
  	}
  }
  
  module.exports = function callBind(originalFunction) {
  	var func = $reflectApply(bind, $call, arguments);
  	if ($gOPD && $defineProperty) {
  		var desc = $gOPD(func, 'length');
  		if (desc.configurable) {
  			// original length, plus the receiver, minus any additional arguments (after the receiver)
  			$defineProperty(
  				func,
  				'length',
  				{ value: 1 + $max(0, originalFunction.length - (arguments.length - 1)) }
  			);
  		}
  	}
  	return func;
  };
  
  var applyBind = function applyBind() {
  	return $reflectApply(bind, $apply, arguments);
  };
  
  if ($defineProperty) {
  	$defineProperty(module.exports, 'apply', { value: applyBind });
  } else {
  	module.exports.apply = applyBind;
  }
  
  
  /***/ }),
  
  /***/ "./node_modules/deepmerge/dist/cjs.js":
  /*!********************************************!*\
    !*** ./node_modules/deepmerge/dist/cjs.js ***!
    \********************************************/
  /***/ ((module) => {
  
  "use strict";
  
  
  var isMergeableObject = function isMergeableObject(value) {
  	return isNonNullObject(value)
  		&& !isSpecial(value)
  };
  
  function isNonNullObject(value) {
  	return !!value && typeof value === 'object'
  }
  
  function isSpecial(value) {
  	var stringValue = Object.prototype.toString.call(value);
  
  	return stringValue === '[object RegExp]'
  		|| stringValue === '[object Date]'
  		|| isReactElement(value)
  }
  
  // see https://github.com/facebook/react/blob/b5ac963fb791d1298e7f396236383bc955f916c1/src/isomorphic/classic/element/ReactElement.js#L21-L25
  var canUseSymbol = typeof Symbol === 'function' && Symbol.for;
  var REACT_ELEMENT_TYPE = canUseSymbol ? Symbol.for('react.element') : 0xeac7;
  
  function isReactElement(value) {
  	return value.$$typeof === REACT_ELEMENT_TYPE
  }
  
  function emptyTarget(val) {
  	return Array.isArray(val) ? [] : {}
  }
  
  function cloneUnlessOtherwiseSpecified(value, options) {
  	return (options.clone !== false && options.isMergeableObject(value))
  		? deepmerge(emptyTarget(value), value, options)
  		: value
  }
  
  function defaultArrayMerge(target, source, options) {
  	return target.concat(source).map(function(element) {
  		return cloneUnlessOtherwiseSpecified(element, options)
  	})
  }
  
  function getMergeFunction(key, options) {
  	if (!options.customMerge) {
  		return deepmerge
  	}
  	var customMerge = options.customMerge(key);
  	return typeof customMerge === 'function' ? customMerge : deepmerge
  }
  
  function getEnumerableOwnPropertySymbols(target) {
  	return Object.getOwnPropertySymbols
  		? Object.getOwnPropertySymbols(target).filter(function(symbol) {
  			return target.propertyIsEnumerable(symbol)
  		})
  		: []
  }
  
  function getKeys(target) {
  	return Object.keys(target).concat(getEnumerableOwnPropertySymbols(target))
  }
  
  function propertyIsOnObject(object, property) {
  	try {
  		return property in object
  	} catch(_) {
  		return false
  	}
  }
  
  // Protects from prototype poisoning and unexpected merging up the prototype chain.
  function propertyIsUnsafe(target, key) {
  	return propertyIsOnObject(target, key) // Properties are safe to merge if they don't exist in the target yet,
  		&& !(Object.hasOwnProperty.call(target, key) // unsafe if they exist up the prototype chain,
  			&& Object.propertyIsEnumerable.call(target, key)) // and also unsafe if they're nonenumerable.
  }
  
  function mergeObject(target, source, options) {
  	var destination = {};
  	if (options.isMergeableObject(target)) {
  		getKeys(target).forEach(function(key) {
  			destination[key] = cloneUnlessOtherwiseSpecified(target[key], options);
  		});
  	}
  	getKeys(source).forEach(function(key) {
  		if (propertyIsUnsafe(target, key)) {
  			return
  		}
  
  		if (propertyIsOnObject(target, key) && options.isMergeableObject(source[key])) {
  			destination[key] = getMergeFunction(key, options)(target[key], source[key], options);
  		} else {
  			destination[key] = cloneUnlessOtherwiseSpecified(source[key], options);
  		}
  	});
  	return destination
  }
  
  function deepmerge(target, source, options) {
  	options = options || {};
  	options.arrayMerge = options.arrayMerge || defaultArrayMerge;
  	options.isMergeableObject = options.isMergeableObject || isMergeableObject;
  	// cloneUnlessOtherwiseSpecified is added to `options` so that custom arrayMerge()
  	// implementations can use it. The caller may not replace it.
  	options.cloneUnlessOtherwiseSpecified = cloneUnlessOtherwiseSpecified;
  
  	var sourceIsArray = Array.isArray(source);
  	var targetIsArray = Array.isArray(target);
  	var sourceAndTargetTypesMatch = sourceIsArray === targetIsArray;
  
  	if (!sourceAndTargetTypesMatch) {
  		return cloneUnlessOtherwiseSpecified(source, options)
  	} else if (sourceIsArray) {
  		return options.arrayMerge(target, source, options)
  	} else {
  		return mergeObject(target, source, options)
  	}
  }
  
  deepmerge.all = function deepmergeAll(array, options) {
  	if (!Array.isArray(array)) {
  		throw new Error('first argument should be an array')
  	}
  
  	return array.reduce(function(prev, next) {
  		return deepmerge(prev, next, options)
  	}, {})
  };
  
  var deepmerge_1 = deepmerge;
  
  module.exports = deepmerge_1;
  
  
  /***/ }),
  
  /***/ "./node_modules/function-bind/implementation.js":
  /*!******************************************************!*\
    !*** ./node_modules/function-bind/implementation.js ***!
    \******************************************************/
  /***/ ((module) => {
  
  "use strict";
  
  
  /* eslint no-invalid-this: 1 */
  
  var ERROR_MESSAGE = 'Function.prototype.bind called on incompatible ';
  var slice = Array.prototype.slice;
  var toStr = Object.prototype.toString;
  var funcType = '[object Function]';
  
  module.exports = function bind(that) {
      var target = this;
      if (typeof target !== 'function' || toStr.call(target) !== funcType) {
          throw new TypeError(ERROR_MESSAGE + target);
      }
      var args = slice.call(arguments, 1);
  
      var bound;
      var binder = function () {
          if (this instanceof bound) {
              var result = target.apply(
                  this,
                  args.concat(slice.call(arguments))
              );
              if (Object(result) === result) {
                  return result;
              }
              return this;
          } else {
              return target.apply(
                  that,
                  args.concat(slice.call(arguments))
              );
          }
      };
  
      var boundLength = Math.max(0, target.length - args.length);
      var boundArgs = [];
      for (var i = 0; i < boundLength; i++) {
          boundArgs.push('$' + i);
      }
  
      bound = Function('binder', 'return function (' + boundArgs.join(',') + '){ return binder.apply(this,arguments); }')(binder);
  
      if (target.prototype) {
          var Empty = function Empty() {};
          Empty.prototype = target.prototype;
          bound.prototype = new Empty();
          Empty.prototype = null;
      }
  
      return bound;
  };
  
  
  /***/ }),
  
  /***/ "./node_modules/function-bind/index.js":
  /*!*********************************************!*\
    !*** ./node_modules/function-bind/index.js ***!
    \*********************************************/
  /***/ ((module, __unused_webpack_exports, __webpack_require__) => {
  
  "use strict";
  
  
  var implementation = __webpack_require__(/*! ./implementation */ "./node_modules/function-bind/implementation.js");
  
  module.exports = Function.prototype.bind || implementation;
  
  
  /***/ }),
  
  /***/ "./node_modules/get-intrinsic/index.js":
  /*!*********************************************!*\
    !*** ./node_modules/get-intrinsic/index.js ***!
    \*********************************************/
  /***/ ((module, __unused_webpack_exports, __webpack_require__) => {
  
  "use strict";
  
  
  var undefined;
  
  var $SyntaxError = SyntaxError;
  var $Function = Function;
  var $TypeError = TypeError;
  
  // eslint-disable-next-line consistent-return
  var getEvalledConstructor = function (expressionSyntax) {
  	try {
  		return $Function('"use strict"; return (' + expressionSyntax + ').constructor;')();
  	} catch (e) {}
  };
  
  var $gOPD = Object.getOwnPropertyDescriptor;
  if ($gOPD) {
  	try {
  		$gOPD({}, '');
  	} catch (e) {
  		$gOPD = null; // this is IE 8, which has a broken gOPD
  	}
  }
  
  var throwTypeError = function () {
  	throw new $TypeError();
  };
  var ThrowTypeError = $gOPD
  	? (function () {
  		try {
  			// eslint-disable-next-line no-unused-expressions, no-caller, no-restricted-properties
  			arguments.callee; // IE 8 does not throw here
  			return throwTypeError;
  		} catch (calleeThrows) {
  			try {
  				// IE 8 throws on Object.getOwnPropertyDescriptor(arguments, '')
  				return $gOPD(arguments, 'callee').get;
  			} catch (gOPDthrows) {
  				return throwTypeError;
  			}
  		}
  	}())
  	: throwTypeError;
  
  var hasSymbols = __webpack_require__(/*! has-symbols */ "./node_modules/has-symbols/index.js")();
  
  var getProto = Object.getPrototypeOf || function (x) { return x.__proto__; }; // eslint-disable-line no-proto
  
  var needsEval = {};
  
  var TypedArray = typeof Uint8Array === 'undefined' ? undefined : getProto(Uint8Array);
  
  var INTRINSICS = {
  	'%AggregateError%': typeof AggregateError === 'undefined' ? undefined : AggregateError,
  	'%Array%': Array,
  	'%ArrayBuffer%': typeof ArrayBuffer === 'undefined' ? undefined : ArrayBuffer,
  	'%ArrayIteratorPrototype%': hasSymbols ? getProto([][Symbol.iterator]()) : undefined,
  	'%AsyncFromSyncIteratorPrototype%': undefined,
  	'%AsyncFunction%': needsEval,
  	'%AsyncGenerator%': needsEval,
  	'%AsyncGeneratorFunction%': needsEval,
  	'%AsyncIteratorPrototype%': needsEval,
  	'%Atomics%': typeof Atomics === 'undefined' ? undefined : Atomics,
  	'%BigInt%': typeof BigInt === 'undefined' ? undefined : BigInt,
  	'%Boolean%': Boolean,
  	'%DataView%': typeof DataView === 'undefined' ? undefined : DataView,
  	'%Date%': Date,
  	'%decodeURI%': decodeURI,
  	'%decodeURIComponent%': decodeURIComponent,
  	'%encodeURI%': encodeURI,
  	'%encodeURIComponent%': encodeURIComponent,
  	'%Error%': Error,
  	'%eval%': eval, // eslint-disable-line no-eval
  	'%EvalError%': EvalError,
  	'%Float32Array%': typeof Float32Array === 'undefined' ? undefined : Float32Array,
  	'%Float64Array%': typeof Float64Array === 'undefined' ? undefined : Float64Array,
  	'%FinalizationRegistry%': typeof FinalizationRegistry === 'undefined' ? undefined : FinalizationRegistry,
  	'%Function%': $Function,
  	'%GeneratorFunction%': needsEval,
  	'%Int8Array%': typeof Int8Array === 'undefined' ? undefined : Int8Array,
  	'%Int16Array%': typeof Int16Array === 'undefined' ? undefined : Int16Array,
  	'%Int32Array%': typeof Int32Array === 'undefined' ? undefined : Int32Array,
  	'%isFinite%': isFinite,
  	'%isNaN%': isNaN,
  	'%IteratorPrototype%': hasSymbols ? getProto(getProto([][Symbol.iterator]())) : undefined,
  	'%JSON%': typeof JSON === 'object' ? JSON : undefined,
  	'%Map%': typeof Map === 'undefined' ? undefined : Map,
  	'%MapIteratorPrototype%': typeof Map === 'undefined' || !hasSymbols ? undefined : getProto(new Map()[Symbol.iterator]()),
  	'%Math%': Math,
  	'%Number%': Number,
  	'%Object%': Object,
  	'%parseFloat%': parseFloat,
  	'%parseInt%': parseInt,
  	'%Promise%': typeof Promise === 'undefined' ? undefined : Promise,
  	'%Proxy%': typeof Proxy === 'undefined' ? undefined : Proxy,
  	'%RangeError%': RangeError,
  	'%ReferenceError%': ReferenceError,
  	'%Reflect%': typeof Reflect === 'undefined' ? undefined : Reflect,
  	'%RegExp%': RegExp,
  	'%Set%': typeof Set === 'undefined' ? undefined : Set,
  	'%SetIteratorPrototype%': typeof Set === 'undefined' || !hasSymbols ? undefined : getProto(new Set()[Symbol.iterator]()),
  	'%SharedArrayBuffer%': typeof SharedArrayBuffer === 'undefined' ? undefined : SharedArrayBuffer,
  	'%String%': String,
  	'%StringIteratorPrototype%': hasSymbols ? getProto(''[Symbol.iterator]()) : undefined,
  	'%Symbol%': hasSymbols ? Symbol : undefined,
  	'%SyntaxError%': $SyntaxError,
  	'%ThrowTypeError%': ThrowTypeError,
  	'%TypedArray%': TypedArray,
  	'%TypeError%': $TypeError,
  	'%Uint8Array%': typeof Uint8Array === 'undefined' ? undefined : Uint8Array,
  	'%Uint8ClampedArray%': typeof Uint8ClampedArray === 'undefined' ? undefined : Uint8ClampedArray,
  	'%Uint16Array%': typeof Uint16Array === 'undefined' ? undefined : Uint16Array,
  	'%Uint32Array%': typeof Uint32Array === 'undefined' ? undefined : Uint32Array,
  	'%URIError%': URIError,
  	'%WeakMap%': typeof WeakMap === 'undefined' ? undefined : WeakMap,
  	'%WeakRef%': typeof WeakRef === 'undefined' ? undefined : WeakRef,
  	'%WeakSet%': typeof WeakSet === 'undefined' ? undefined : WeakSet
  };
  
  var doEval = function doEval(name) {
  	var value;
  	if (name === '%AsyncFunction%') {
  		value = getEvalledConstructor('async function () {}');
  	} else if (name === '%GeneratorFunction%') {
  		value = getEvalledConstructor('function* () {}');
  	} else if (name === '%AsyncGeneratorFunction%') {
  		value = getEvalledConstructor('async function* () {}');
  	} else if (name === '%AsyncGenerator%') {
  		var fn = doEval('%AsyncGeneratorFunction%');
  		if (fn) {
  			value = fn.prototype;
  		}
  	} else if (name === '%AsyncIteratorPrototype%') {
  		var gen = doEval('%AsyncGenerator%');
  		if (gen) {
  			value = getProto(gen.prototype);
  		}
  	}
  
  	INTRINSICS[name] = value;
  
  	return value;
  };
  
  var LEGACY_ALIASES = {
  	'%ArrayBufferPrototype%': ['ArrayBuffer', 'prototype'],
  	'%ArrayPrototype%': ['Array', 'prototype'],
  	'%ArrayProto_entries%': ['Array', 'prototype', 'entries'],
  	'%ArrayProto_forEach%': ['Array', 'prototype', 'forEach'],
  	'%ArrayProto_keys%': ['Array', 'prototype', 'keys'],
  	'%ArrayProto_values%': ['Array', 'prototype', 'values'],
  	'%AsyncFunctionPrototype%': ['AsyncFunction', 'prototype'],
  	'%AsyncGenerator%': ['AsyncGeneratorFunction', 'prototype'],
  	'%AsyncGeneratorPrototype%': ['AsyncGeneratorFunction', 'prototype', 'prototype'],
  	'%BooleanPrototype%': ['Boolean', 'prototype'],
  	'%DataViewPrototype%': ['DataView', 'prototype'],
  	'%DatePrototype%': ['Date', 'prototype'],
  	'%ErrorPrototype%': ['Error', 'prototype'],
  	'%EvalErrorPrototype%': ['EvalError', 'prototype'],
  	'%Float32ArrayPrototype%': ['Float32Array', 'prototype'],
  	'%Float64ArrayPrototype%': ['Float64Array', 'prototype'],
  	'%FunctionPrototype%': ['Function', 'prototype'],
  	'%Generator%': ['GeneratorFunction', 'prototype'],
  	'%GeneratorPrototype%': ['GeneratorFunction', 'prototype', 'prototype'],
  	'%Int8ArrayPrototype%': ['Int8Array', 'prototype'],
  	'%Int16ArrayPrototype%': ['Int16Array', 'prototype'],
  	'%Int32ArrayPrototype%': ['Int32Array', 'prototype'],
  	'%JSONParse%': ['JSON', 'parse'],
  	'%JSONStringify%': ['JSON', 'stringify'],
  	'%MapPrototype%': ['Map', 'prototype'],
  	'%NumberPrototype%': ['Number', 'prototype'],
  	'%ObjectPrototype%': ['Object', 'prototype'],
  	'%ObjProto_toString%': ['Object', 'prototype', 'toString'],
  	'%ObjProto_valueOf%': ['Object', 'prototype', 'valueOf'],
  	'%PromisePrototype%': ['Promise', 'prototype'],
  	'%PromiseProto_then%': ['Promise', 'prototype', 'then'],
  	'%Promise_all%': ['Promise', 'all'],
  	'%Promise_reject%': ['Promise', 'reject'],
  	'%Promise_resolve%': ['Promise', 'resolve'],
  	'%RangeErrorPrototype%': ['RangeError', 'prototype'],
  	'%ReferenceErrorPrototype%': ['ReferenceError', 'prototype'],
  	'%RegExpPrototype%': ['RegExp', 'prototype'],
  	'%SetPrototype%': ['Set', 'prototype'],
  	'%SharedArrayBufferPrototype%': ['SharedArrayBuffer', 'prototype'],
  	'%StringPrototype%': ['String', 'prototype'],
  	'%SymbolPrototype%': ['Symbol', 'prototype'],
  	'%SyntaxErrorPrototype%': ['SyntaxError', 'prototype'],
  	'%TypedArrayPrototype%': ['TypedArray', 'prototype'],
  	'%TypeErrorPrototype%': ['TypeError', 'prototype'],
  	'%Uint8ArrayPrototype%': ['Uint8Array', 'prototype'],
  	'%Uint8ClampedArrayPrototype%': ['Uint8ClampedArray', 'prototype'],
  	'%Uint16ArrayPrototype%': ['Uint16Array', 'prototype'],
  	'%Uint32ArrayPrototype%': ['Uint32Array', 'prototype'],
  	'%URIErrorPrototype%': ['URIError', 'prototype'],
  	'%WeakMapPrototype%': ['WeakMap', 'prototype'],
  	'%WeakSetPrototype%': ['WeakSet', 'prototype']
  };
  
  var bind = __webpack_require__(/*! function-bind */ "./node_modules/function-bind/index.js");
  var hasOwn = __webpack_require__(/*! has */ "./node_modules/has/src/index.js");
  var $concat = bind.call(Function.call, Array.prototype.concat);
  var $spliceApply = bind.call(Function.apply, Array.prototype.splice);
  var $replace = bind.call(Function.call, String.prototype.replace);
  var $strSlice = bind.call(Function.call, String.prototype.slice);
  
  /* adapted from https://github.com/lodash/lodash/blob/4.17.15/dist/lodash.js#L6735-L6744 */
  var rePropName = /[^%.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|%$))/g;
  var reEscapeChar = /\\(\\)?/g; /** Used to match backslashes in property paths. */
  var stringToPath = function stringToPath(string) {
  	var first = $strSlice(string, 0, 1);
  	var last = $strSlice(string, -1);
  	if (first === '%' && last !== '%') {
  		throw new $SyntaxError('invalid intrinsic syntax, expected closing `%`');
  	} else if (last === '%' && first !== '%') {
  		throw new $SyntaxError('invalid intrinsic syntax, expected opening `%`');
  	}
  	var result = [];
  	$replace(string, rePropName, function (match, number, quote, subString) {
  		result[result.length] = quote ? $replace(subString, reEscapeChar, '$1') : number || match;
  	});
  	return result;
  };
  /* end adaptation */
  
  var getBaseIntrinsic = function getBaseIntrinsic(name, allowMissing) {
  	var intrinsicName = name;
  	var alias;
  	if (hasOwn(LEGACY_ALIASES, intrinsicName)) {
  		alias = LEGACY_ALIASES[intrinsicName];
  		intrinsicName = '%' + alias[0] + '%';
  	}
  
  	if (hasOwn(INTRINSICS, intrinsicName)) {
  		var value = INTRINSICS[intrinsicName];
  		if (value === needsEval) {
  			value = doEval(intrinsicName);
  		}
  		if (typeof value === 'undefined' && !allowMissing) {
  			throw new $TypeError('intrinsic ' + name + ' exists, but is not available. Please file an issue!');
  		}
  
  		return {
  			alias: alias,
  			name: intrinsicName,
  			value: value
  		};
  	}
  
  	throw new $SyntaxError('intrinsic ' + name + ' does not exist!');
  };
  
  module.exports = function GetIntrinsic(name, allowMissing) {
  	if (typeof name !== 'string' || name.length === 0) {
  		throw new $TypeError('intrinsic name must be a non-empty string');
  	}
  	if (arguments.length > 1 && typeof allowMissing !== 'boolean') {
  		throw new $TypeError('"allowMissing" argument must be a boolean');
  	}
  
  	var parts = stringToPath(name);
  	var intrinsicBaseName = parts.length > 0 ? parts[0] : '';
  
  	var intrinsic = getBaseIntrinsic('%' + intrinsicBaseName + '%', allowMissing);
  	var intrinsicRealName = intrinsic.name;
  	var value = intrinsic.value;
  	var skipFurtherCaching = false;
  
  	var alias = intrinsic.alias;
  	if (alias) {
  		intrinsicBaseName = alias[0];
  		$spliceApply(parts, $concat([0, 1], alias));
  	}
  
  	for (var i = 1, isOwn = true; i < parts.length; i += 1) {
  		var part = parts[i];
  		var first = $strSlice(part, 0, 1);
  		var last = $strSlice(part, -1);
  		if (
  			(
  				(first === '"' || first === "'" || first === '`')
  				|| (last === '"' || last === "'" || last === '`')
  			)
  			&& first !== last
  		) {
  			throw new $SyntaxError('property names with quotes must have matching quotes');
  		}
  		if (part === 'constructor' || !isOwn) {
  			skipFurtherCaching = true;
  		}
  
  		intrinsicBaseName += '.' + part;
  		intrinsicRealName = '%' + intrinsicBaseName + '%';
  
  		if (hasOwn(INTRINSICS, intrinsicRealName)) {
  			value = INTRINSICS[intrinsicRealName];
  		} else if (value != null) {
  			if (!(part in value)) {
  				if (!allowMissing) {
  					throw new $TypeError('base intrinsic for ' + name + ' exists, but the property is not available.');
  				}
  				return void undefined;
  			}
  			if ($gOPD && (i + 1) >= parts.length) {
  				var desc = $gOPD(value, part);
  				isOwn = !!desc;
  
  				// By convention, when a data property is converted to an accessor
  				// property to emulate a data property that does not suffer from
  				// the override mistake, that accessor's getter is marked with
  				// an `originalValue` property. Here, when we detect this, we
  				// uphold the illusion by pretending to see that original data
  				// property, i.e., returning the value rather than the getter
  				// itself.
  				if (isOwn && 'get' in desc && !('originalValue' in desc.get)) {
  					value = desc.get;
  				} else {
  					value = value[part];
  				}
  			} else {
  				isOwn = hasOwn(value, part);
  				value = value[part];
  			}
  
  			if (isOwn && !skipFurtherCaching) {
  				INTRINSICS[intrinsicRealName] = value;
  			}
  		}
  	}
  	return value;
  };
  
  
  /***/ }),
  
  /***/ "./node_modules/has-symbols/index.js":
  /*!*******************************************!*\
    !*** ./node_modules/has-symbols/index.js ***!
    \*******************************************/
  /***/ ((module, __unused_webpack_exports, __webpack_require__) => {
  
  "use strict";
  
  
  var origSymbol = typeof Symbol !== 'undefined' && Symbol;
  var hasSymbolSham = __webpack_require__(/*! ./shams */ "./node_modules/has-symbols/shams.js");
  
  module.exports = function hasNativeSymbols() {
  	if (typeof origSymbol !== 'function') { return false; }
  	if (typeof Symbol !== 'function') { return false; }
  	if (typeof origSymbol('foo') !== 'symbol') { return false; }
  	if (typeof Symbol('bar') !== 'symbol') { return false; }
  
  	return hasSymbolSham();
  };
  
  
  /***/ }),
  
  /***/ "./node_modules/has-symbols/shams.js":
  /*!*******************************************!*\
    !*** ./node_modules/has-symbols/shams.js ***!
    \*******************************************/
  /***/ ((module) => {
  
  "use strict";
  
  
  /* eslint complexity: [2, 18], max-statements: [2, 33] */
  module.exports = function hasSymbols() {
  	if (typeof Symbol !== 'function' || typeof Object.getOwnPropertySymbols !== 'function') { return false; }
  	if (typeof Symbol.iterator === 'symbol') { return true; }
  
  	var obj = {};
  	var sym = Symbol('test');
  	var symObj = Object(sym);
  	if (typeof sym === 'string') { return false; }
  
  	if (Object.prototype.toString.call(sym) !== '[object Symbol]') { return false; }
  	if (Object.prototype.toString.call(symObj) !== '[object Symbol]') { return false; }
  
  	// temp disabled per https://github.com/ljharb/object.assign/issues/17
  	// if (sym instanceof Symbol) { return false; }
  	// temp disabled per https://github.com/WebReflection/get-own-property-symbols/issues/4
  	// if (!(symObj instanceof Symbol)) { return false; }
  
  	// if (typeof Symbol.prototype.toString !== 'function') { return false; }
  	// if (String(sym) !== Symbol.prototype.toString.call(sym)) { return false; }
  
  	var symVal = 42;
  	obj[sym] = symVal;
  	for (sym in obj) { return false; } // eslint-disable-line no-restricted-syntax, no-unreachable-loop
  	if (typeof Object.keys === 'function' && Object.keys(obj).length !== 0) { return false; }
  
  	if (typeof Object.getOwnPropertyNames === 'function' && Object.getOwnPropertyNames(obj).length !== 0) { return false; }
  
  	var syms = Object.getOwnPropertySymbols(obj);
  	if (syms.length !== 1 || syms[0] !== sym) { return false; }
  
  	if (!Object.prototype.propertyIsEnumerable.call(obj, sym)) { return false; }
  
  	if (typeof Object.getOwnPropertyDescriptor === 'function') {
  		var descriptor = Object.getOwnPropertyDescriptor(obj, sym);
  		if (descriptor.value !== symVal || descriptor.enumerable !== true) { return false; }
  	}
  
  	return true;
  };
  
  
  /***/ }),
  
  /***/ "./node_modules/has/src/index.js":
  /*!***************************************!*\
    !*** ./node_modules/has/src/index.js ***!
    \***************************************/
  /***/ ((module, __unused_webpack_exports, __webpack_require__) => {
  
  "use strict";
  
  
  var bind = __webpack_require__(/*! function-bind */ "./node_modules/function-bind/index.js");
  
  module.exports = bind.call(Function.call, Object.prototype.hasOwnProperty);
  
  
  /***/ }),
  
  /***/ "./node_modules/lodash.clonedeep/index.js":
  /*!************************************************!*\
    !*** ./node_modules/lodash.clonedeep/index.js ***!
    \************************************************/
  /***/ ((module, exports, __webpack_require__) => {
  
  /* module decorator */ module = __webpack_require__.nmd(module);
  /**
   * lodash (Custom Build) <https://lodash.com/>
   * Build: `lodash modularize exports="npm" -o ./`
   * Copyright jQuery Foundation and other contributors <https://jquery.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
   */
  
  /** Used as the size to enable large array optimizations. */
  var LARGE_ARRAY_SIZE = 200;
  
  /** Used to stand-in for `undefined` hash values. */
  var HASH_UNDEFINED = '__lodash_hash_undefined__';
  
  /** Used as references for various `Number` constants. */
  var MAX_SAFE_INTEGER = 9007199254740991;
  
  /** `Object#toString` result references. */
  var argsTag = '[object Arguments]',
      arrayTag = '[object Array]',
      boolTag = '[object Boolean]',
      dateTag = '[object Date]',
      errorTag = '[object Error]',
      funcTag = '[object Function]',
      genTag = '[object GeneratorFunction]',
      mapTag = '[object Map]',
      numberTag = '[object Number]',
      objectTag = '[object Object]',
      promiseTag = '[object Promise]',
      regexpTag = '[object RegExp]',
      setTag = '[object Set]',
      stringTag = '[object String]',
      symbolTag = '[object Symbol]',
      weakMapTag = '[object WeakMap]';
  
  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 `RegExp`
   * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).
   */
  var reRegExpChar = /[\\^$.*+?()[\]{}|]/g;
  
  /** Used to match `RegExp` flags from their coerced string values. */
  var reFlags = /\w*$/;
  
  /** Used to detect host constructors (Safari). */
  var reIsHostCtor = /^\[object .+?Constructor\]$/;
  
  /** Used to detect unsigned integer values. */
  var reIsUint = /^(?:0|[1-9]\d*)$/;
  
  /** 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;
  
  /** Detect free variable `global` from Node.js. */
  var freeGlobal = typeof __webpack_require__.g == 'object' && __webpack_require__.g && __webpack_require__.g.Object === Object && __webpack_require__.g;
  
  /** 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 && "object" == 'object' && module && !module.nodeType && module;
  
  /** Detect the popular CommonJS extension `module.exports`. */
  var moduleExports = freeModule && freeModule.exports === freeExports;
  
  /**
   * Adds the key-value `pair` to `map`.
   *
   * @private
   * @param {Object} map The map to modify.
   * @param {Array} pair The key-value pair to add.
   * @returns {Object} Returns `map`.
   */
  function addMapEntry(map, pair) {
    // Don't return `map.set` because it's not chainable in IE 11.
    map.set(pair[0], pair[1]);
    return map;
  }
  
  /**
   * Adds `value` to `set`.
   *
   * @private
   * @param {Object} set The set to modify.
   * @param {*} value The value to add.
   * @returns {Object} Returns `set`.
   */
  function addSetEntry(set, value) {
    // Don't return `set.add` because it's not chainable in IE 11.
    set.add(value);
    return set;
  }
  
  /**
   * 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 ? array.length : 0;
  
    while (++index < length) {
      if (iteratee(array[index], index, array) === false) {
        break;
      }
    }
    return array;
  }
  
  /**
   * 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 ? array.length : 0;
  
    if (initAccum && length) {
      accumulator = array[++index];
    }
    while (++index < length) {
      accumulator = iteratee(accumulator, array[index], index, array);
    }
    return accumulator;
  }
  
  /**
   * 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;
  }
  
  /**
   * 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 `value` is a host object in IE < 9.
   *
   * @private
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is a host object, else `false`.
   */
  function isHostObject(value) {
    // Many host objects are `Object` objects that can coerce to strings
    // despite having improperly defined `toString` methods.
    var result = false;
    if (value != null && typeof value.toString != 'function') {
      try {
        result = !!(value + '');
      } catch (e) {}
    }
    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));
    };
  }
  
  /**
   * 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;
  }
  
  /** 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 = root['__core-js_shared__'];
  
  /** 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 decompiled source of functions. */
  var funcToString = funcProto.toString;
  
  /** Used to check objects for own properties. */
  var hasOwnProperty = objectProto.hasOwnProperty;
  
  /**
   * Used to resolve the
   * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
   * of values.
   */
  var objectToString = objectProto.toString;
  
  /** 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 ? root.Buffer : undefined,
      Symbol = root.Symbol,
      Uint8Array = root.Uint8Array,
      getPrototype = overArg(Object.getPrototypeOf, Object),
      objectCreate = Object.create,
      propertyIsEnumerable = objectProto.propertyIsEnumerable,
      splice = arrayProto.splice;
  
  /* Built-in method references for those with the same name as other `lodash` methods. */
  var nativeGetSymbols = Object.getOwnPropertySymbols,
      nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined,
      nativeKeys = overArg(Object.keys, Object);
  
  /* Built-in method references that are verified to be native. */
  var DataView = getNative(root, 'DataView'),
      Map = getNative(root, 'Map'),
      Promise = getNative(root, 'Promise'),
      Set = getNative(root, 'Set'),
      WeakMap = getNative(root, 'WeakMap'),
      nativeCreate = getNative(Object, 'create');
  
  /** 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;
  
  /**
   * Creates a hash object.
   *
   * @private
   * @constructor
   * @param {Array} [entries] The key-value pairs to cache.
   */
  function Hash(entries) {
    var index = -1,
        length = entries ? entries.length : 0;
  
    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) : {};
  }
  
  /**
   * 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) {
    return this.has(key) && delete this.__data__[key];
  }
  
  /**
   * 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__;
    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 ? entries.length : 0;
  
    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__ = [];
  }
  
  /**
   * 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);
    }
    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) {
      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 ? entries.length : 0;
  
    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.__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) {
    return getMapData(this, key)['delete'](key);
  }
  
  /**
   * 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) {
    getMapData(this, key).set(key, value);
    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 a stack cache object to store key-value pairs.
   *
   * @private
   * @constructor
   * @param {Array} [entries] The key-value pairs to cache.
   */
  function Stack(entries) {
    this.__data__ = new ListCache(entries);
  }
  
  /**
   * Removes all key-value entries from the stack.
   *
   * @private
   * @name clear
   * @memberOf Stack
   */
  function stackClear() {
    this.__data__ = new ListCache;
  }
  
  /**
   * 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) {
    return this.__data__['delete'](key);
  }
  
  /**
   * 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 cache = this.__data__;
    if (cache instanceof ListCache) {
      var pairs = cache.__data__;
      if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) {
        pairs.push([key, value]);
        return this;
      }
      cache = this.__data__ = new MapCache(pairs);
    }
    cache.set(key, value);
    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) {
    // Safari 8.1 makes `arguments.callee` enumerable in strict mode.
    // Safari 9 makes `arguments.length` enumerable in strict mode.
    var result = (isArray(value) || isArguments(value))
      ? baseTimes(value.length, String)
      : [];
  
    var length = result.length,
        skipIndexes = !!length;
  
    for (var key in value) {
      if ((inherited || hasOwnProperty.call(value, key)) &&
          !(skipIndexes && (key == 'length' || isIndex(key, length)))) {
        result.push(key);
      }
    }
    return result;
  }
  
  /**
   * 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))) {
      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;
  }
  
  /**
   * 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 `_.clone` and `_.cloneDeep` which tracks
   * traversed objects.
   *
   * @private
   * @param {*} value The value to clone.
   * @param {boolean} [isDeep] Specify a deep clone.
   * @param {boolean} [isFull] Specify a clone including 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, isDeep, isFull, customizer, key, object, stack) {
    var result;
    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)) {
        if (isHostObject(value)) {
          return object ? value : {};
        }
        result = initCloneObject(isFunc ? {} : value);
        if (!isDeep) {
          return copySymbols(value, baseAssign(result, value));
        }
      } else {
        if (!cloneableTags[tag]) {
          return object ? value : {};
        }
        result = initCloneByTag(value, tag, baseClone, 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 (!isArr) {
      var props = isFull ? getAllKeys(value) : keys(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, isDeep, isFull, customizer, key, value, stack));
    });
    return result;
  }
  
  /**
   * The base implementation of `_.create` without support for assigning
   * properties to the created object.
   *
   * @private
   * @param {Object} prototype The object to inherit from.
   * @returns {Object} Returns the new object.
   */
  function baseCreate(proto) {
    return isObject(proto) ? objectCreate(proto) : {};
  }
  
  /**
   * 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`.
   *
   * @private
   * @param {*} value The value to query.
   * @returns {string} Returns the `toStringTag`.
   */
  function baseGetTag(value) {
    return objectToString.call(value);
  }
  
  /**
   * 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) || isHostObject(value)) ? reIsNative : reIsHostCtor;
    return pattern.test(toSource(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;
  }
  
  /**
   * 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 result = new buffer.constructor(buffer.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 `map`.
   *
   * @private
   * @param {Object} map The map to clone.
   * @param {Function} cloneFunc The function to clone values.
   * @param {boolean} [isDeep] Specify a deep clone.
   * @returns {Object} Returns the cloned map.
   */
  function cloneMap(map, isDeep, cloneFunc) {
    var array = isDeep ? cloneFunc(mapToArray(map), true) : mapToArray(map);
    return arrayReduce(array, addMapEntry, new map.constructor);
  }
  
  /**
   * 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 `set`.
   *
   * @private
   * @param {Object} set The set to clone.
   * @param {Function} cloneFunc The function to clone values.
   * @param {boolean} [isDeep] Specify a deep clone.
   * @returns {Object} Returns the cloned set.
   */
  function cloneSet(set, isDeep, cloneFunc) {
    var array = isDeep ? cloneFunc(setToArray(set), true) : setToArray(set);
    return arrayReduce(array, addSetEntry, new set.constructor);
  }
  
  /**
   * 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);
  }
  
  /**
   * 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) {
    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;
  
      assignValue(object, key, newValue === undefined ? source[key] : newValue);
    }
    return object;
  }
  
  /**
   * Copies own symbol properties 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);
  }
  
  /**
   * 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);
  }
  
  /**
   * 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 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;
  }
  
  /**
   * Creates an array of the own enumerable symbol properties of `object`.
   *
   * @private
   * @param {Object} object The object to query.
   * @returns {Array} Returns the array of symbols.
   */
  var getSymbols = nativeGetSymbols ? overArg(nativeGetSymbols, Object) : stubArray;
  
  /**
   * 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,
  // for data views in Edge < 14, and promises in Node.js.
  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 = objectToString.call(value),
          Ctor = result == objectTag ? value.constructor : undefined,
          ctorString = Ctor ? toSource(Ctor) : undefined;
  
      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;
    };
  }
  
  /**
   * 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 = 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`, `Number`, `RegExp`, or `String`.
   *
   * @private
   * @param {Object} object The object to clone.
   * @param {string} tag The `toStringTag` of the object to clone.
   * @param {Function} cloneFunc The function to clone values.
   * @param {boolean} [isDeep] Specify a deep clone.
   * @returns {Object} Returns the initialized clone.
   */
  function initCloneByTag(object, tag, cloneFunc, 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 cloneMap(object, isDeep, cloneFunc);
  
      case numberTag:
      case stringTag:
        return new Ctor(object);
  
      case regexpTag:
        return cloneRegExp(object);
  
      case setTag:
        return cloneSet(object, isDeep, cloneFunc);
  
      case symbolTag:
        return cloneSymbol(object);
    }
  }
  
  /**
   * 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) {
    length = length == null ? MAX_SAFE_INTEGER : length;
    return !!length &&
      (typeof value == 'number' || reIsUint.test(value)) &&
      (value > -1 && value % 1 == 0 && value < length);
  }
  
  /**
   * 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 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 `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;
  }
  
  /**
   * Converts `func` to its source code.
   *
   * @private
   * @param {Function} func The function to process.
   * @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 '';
  }
  
  /**
   * 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, true, true);
  }
  
  /**
   * 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 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
   */
  function isArguments(value) {
    // Safari 8.1 makes `arguments.callee` enumerable in strict mode.
    return isArrayLikeObject(value) && hasOwnProperty.call(value, 'callee') &&
      (!propertyIsEnumerable.call(value, 'callee') || objectToString.call(value) == argsTag);
  }
  
  /**
   * 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 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 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 `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) {
    // The use of `Object#toString` avoids issues with the `typeof` operator
    // in Safari 8-9 which returns 'object' for typed array and other constructors.
    var tag = isObject(value) ? objectToString.call(value) : '';
    return tag == funcTag || tag == genTag;
  }
  
  /**
   * 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 && (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 && typeof value == 'object';
  }
  
  /**
   * 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);
  }
  
  /**
   * 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;
  }
  
  module.exports = cloneDeep;
  
  
  /***/ }),
  
  /***/ "./node_modules/lodash.isequal/index.js":
  /*!**********************************************!*\
    !*** ./node_modules/lodash.isequal/index.js ***!
    \**********************************************/
  /***/ ((module, exports, __webpack_require__) => {
  
  /* module decorator */ module = __webpack_require__.nmd(module);
  /**
   * Lodash (Custom Build) <https://lodash.com/>
   * Build: `lodash modularize exports="npm" -o ./`
   * Copyright JS Foundation and other contributors <https://js.foundation/>
   * 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
   */
  
  /** Used as the size to enable large array optimizations. */
  var LARGE_ARRAY_SIZE = 200;
  
  /** Used to stand-in for `undefined` hash values. */
  var HASH_UNDEFINED = '__lodash_hash_undefined__';
  
  /** Used to compose bitmasks for value comparisons. */
  var COMPARE_PARTIAL_FLAG = 1,
      COMPARE_UNORDERED_FLAG = 2;
  
  /** Used as references for various `Number` constants. */
  var MAX_SAFE_INTEGER = 9007199254740991;
  
  /** `Object#toString` result references. */
  var argsTag = '[object Arguments]',
      arrayTag = '[object Array]',
      asyncTag = '[object AsyncFunction]',
      boolTag = '[object Boolean]',
      dateTag = '[object Date]',
      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]';
  
  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 `RegExp`
   * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).
   */
  var reRegExpChar = /[\\^$.*+?()[\]{}|]/g;
  
  /** Used to detect host constructors (Safari). */
  var reIsHostCtor = /^\[object .+?Constructor\]$/;
  
  /** Used to detect unsigned integer values. */
  var reIsUint = /^(?:0|[1-9]\d*)$/;
  
  /** 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;
  
  /** Detect free variable `global` from Node.js. */
  var freeGlobal = typeof __webpack_require__.g == 'object' && __webpack_require__.g && __webpack_require__.g.Object === Object && __webpack_require__.g;
  
  /** 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 && "object" == '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 {
      return freeProcess && freeProcess.binding && freeProcess.binding('util');
    } catch (e) {}
  }());
  
  /* Node.js helper references. */
  var nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray;
  
  /**
   * 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;
  }
  
  /**
   * 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 `_.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;
  }
  
  /**
   * 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 `_.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);
    };
  }
  
  /**
   * 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);
  }
  
  /**
   * 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];
  }
  
  /**
   * 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));
    };
  }
  
  /**
   * 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;
  }
  
  /** 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 = root['__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 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 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 ? root.Buffer : undefined,
      Symbol = root.Symbol,
      Uint8Array = root.Uint8Array,
      propertyIsEnumerable = objectProto.propertyIsEnumerable,
      splice = arrayProto.splice,
      symToStringTag = Symbol ? Symbol.toStringTag : undefined;
  
  /* Built-in method references for those with the same name as other `lodash` methods. */
  var nativeGetSymbols = Object.getOwnPropertySymbols,
      nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined,
      nativeKeys = overArg(Object.keys, Object);
  
  /* Built-in method references that are verified to be native. */
  var DataView = getNative(root, 'DataView'),
      Map = getNative(root, 'Map'),
      Promise = getNative(root, 'Promise'),
      Set = getNative(root, 'Set'),
      WeakMap = getNative(root, 'WeakMap'),
      nativeCreate = getNative(Object, 'create');
  
  /** 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;
  
  /**
   * 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;
  }
  
  /**
   * 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;
  }
  
  /**
   * 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 `_.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 `_.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 `_.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 `_.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 `_.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;
  }
  
  /**
   * 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;
  }
  
  /**
   * 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);
  }
  
  /**
   * 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 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);
    });
  };
  
  /**
   * 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;
    };
  }
  
  /**
   * 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) {
    length = length == null ? MAX_SAFE_INTEGER : length;
    return !!length &&
      (typeof value == 'number' || reIsUint.test(value)) &&
      (value > -1 && value % 1 == 0 && value < length);
  }
  
  /**
   * 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 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 `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;
  }
  
  /**
   * 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);
  }
  
  /**
   * 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 '';
  }
  
  /**
   * 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 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 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);
  }
  
  /**
   * 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;
  
  /**
   * 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);
  }
  
  /**
   * 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 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 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;
  
  /**
   * 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);
  }
  
  /**
   * 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;
  }
  
  module.exports = isEqual;
  
  
  /***/ }),
  
  /***/ "./resources/sass/app.scss":
  /*!*********************************!*\
    !*** ./resources/sass/app.scss ***!
    \*********************************/
  /***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {
  
  "use strict";
  __webpack_require__.r(__webpack_exports__);
  // extracted by mini-css-extract-plugin
  
  
  /***/ }),
  
  /***/ "./node_modules/object-inspect/index.js":
  /*!**********************************************!*\
    !*** ./node_modules/object-inspect/index.js ***!
    \**********************************************/
  /***/ ((module, __unused_webpack_exports, __webpack_require__) => {
  
  var hasMap = typeof Map === 'function' && Map.prototype;
  var mapSizeDescriptor = Object.getOwnPropertyDescriptor && hasMap ? Object.getOwnPropertyDescriptor(Map.prototype, 'size') : null;
  var mapSize = hasMap && mapSizeDescriptor && typeof mapSizeDescriptor.get === 'function' ? mapSizeDescriptor.get : null;
  var mapForEach = hasMap && Map.prototype.forEach;
  var hasSet = typeof Set === 'function' && Set.prototype;
  var setSizeDescriptor = Object.getOwnPropertyDescriptor && hasSet ? Object.getOwnPropertyDescriptor(Set.prototype, 'size') : null;
  var setSize = hasSet && setSizeDescriptor && typeof setSizeDescriptor.get === 'function' ? setSizeDescriptor.get : null;
  var setForEach = hasSet && Set.prototype.forEach;
  var hasWeakMap = typeof WeakMap === 'function' && WeakMap.prototype;
  var weakMapHas = hasWeakMap ? WeakMap.prototype.has : null;
  var hasWeakSet = typeof WeakSet === 'function' && WeakSet.prototype;
  var weakSetHas = hasWeakSet ? WeakSet.prototype.has : null;
  var hasWeakRef = typeof WeakRef === 'function' && WeakRef.prototype;
  var weakRefDeref = hasWeakRef ? WeakRef.prototype.deref : null;
  var booleanValueOf = Boolean.prototype.valueOf;
  var objectToString = Object.prototype.toString;
  var functionToString = Function.prototype.toString;
  var $match = String.prototype.match;
  var $slice = String.prototype.slice;
  var $replace = String.prototype.replace;
  var $toUpperCase = String.prototype.toUpperCase;
  var $toLowerCase = String.prototype.toLowerCase;
  var $test = RegExp.prototype.test;
  var $concat = Array.prototype.concat;
  var $join = Array.prototype.join;
  var $arrSlice = Array.prototype.slice;
  var $floor = Math.floor;
  var bigIntValueOf = typeof BigInt === 'function' ? BigInt.prototype.valueOf : null;
  var gOPS = Object.getOwnPropertySymbols;
  var symToString = typeof Symbol === 'function' && typeof Symbol.iterator === 'symbol' ? Symbol.prototype.toString : null;
  var hasShammedSymbols = typeof Symbol === 'function' && typeof Symbol.iterator === 'object';
  // ie, `has-tostringtag/shams
  var toStringTag = typeof Symbol === 'function' && Symbol.toStringTag && (typeof Symbol.toStringTag === hasShammedSymbols ? 'object' : 'symbol')
      ? Symbol.toStringTag
      : null;
  var isEnumerable = Object.prototype.propertyIsEnumerable;
  
  var gPO = (typeof Reflect === 'function' ? Reflect.getPrototypeOf : Object.getPrototypeOf) || (
      [].__proto__ === Array.prototype // eslint-disable-line no-proto
          ? function (O) {
              return O.__proto__; // eslint-disable-line no-proto
          }
          : null
  );
  
  function addNumericSeparator(num, str) {
      if (
          num === Infinity
          || num === -Infinity
          || num !== num
          || (num && num > -1000 && num < 1000)
          || $test.call(/e/, str)
      ) {
          return str;
      }
      var sepRegex = /[0-9](?=(?:[0-9]{3})+(?![0-9]))/g;
      if (typeof num === 'number') {
          var int = num < 0 ? -$floor(-num) : $floor(num); // trunc(num)
          if (int !== num) {
              var intStr = String(int);
              var dec = $slice.call(str, intStr.length + 1);
              return $replace.call(intStr, sepRegex, '$&_') + '.' + $replace.call($replace.call(dec, /([0-9]{3})/g, '$&_'), /_$/, '');
          }
      }
      return $replace.call(str, sepRegex, '$&_');
  }
  
  var inspectCustom = (__webpack_require__(/*! ./util.inspect */ "?2128").custom);
  var inspectSymbol = inspectCustom && isSymbol(inspectCustom) ? inspectCustom : null;
  
  module.exports = function inspect_(obj, options, depth, seen) {
      var opts = options || {};
  
      if (has(opts, 'quoteStyle') && (opts.quoteStyle !== 'single' && opts.quoteStyle !== 'double')) {
          throw new TypeError('option "quoteStyle" must be "single" or "double"');
      }
      if (
          has(opts, 'maxStringLength') && (typeof opts.maxStringLength === 'number'
              ? opts.maxStringLength < 0 && opts.maxStringLength !== Infinity
              : opts.maxStringLength !== null
          )
      ) {
          throw new TypeError('option "maxStringLength", if provided, must be a positive integer, Infinity, or `null`');
      }
      var customInspect = has(opts, 'customInspect') ? opts.customInspect : true;
      if (typeof customInspect !== 'boolean' && customInspect !== 'symbol') {
          throw new TypeError('option "customInspect", if provided, must be `true`, `false`, or `\'symbol\'`');
      }
  
      if (
          has(opts, 'indent')
          && opts.indent !== null
          && opts.indent !== '\t'
          && !(parseInt(opts.indent, 10) === opts.indent && opts.indent > 0)
      ) {
          throw new TypeError('option "indent" must be "\\t", an integer > 0, or `null`');
      }
      if (has(opts, 'numericSeparator') && typeof opts.numericSeparator !== 'boolean') {
          throw new TypeError('option "numericSeparator", if provided, must be `true` or `false`');
      }
      var numericSeparator = opts.numericSeparator;
  
      if (typeof obj === 'undefined') {
          return 'undefined';
      }
      if (obj === null) {
          return 'null';
      }
      if (typeof obj === 'boolean') {
          return obj ? 'true' : 'false';
      }
  
      if (typeof obj === 'string') {
          return inspectString(obj, opts);
      }
      if (typeof obj === 'number') {
          if (obj === 0) {
              return Infinity / obj > 0 ? '0' : '-0';
          }
          var str = String(obj);
          return numericSeparator ? addNumericSeparator(obj, str) : str;
      }
      if (typeof obj === 'bigint') {
          var bigIntStr = String(obj) + 'n';
          return numericSeparator ? addNumericSeparator(obj, bigIntStr) : bigIntStr;
      }
  
      var maxDepth = typeof opts.depth === 'undefined' ? 5 : opts.depth;
      if (typeof depth === 'undefined') { depth = 0; }
      if (depth >= maxDepth && maxDepth > 0 && typeof obj === 'object') {
          return isArray(obj) ? '[Array]' : '[Object]';
      }
  
      var indent = getIndent(opts, depth);
  
      if (typeof seen === 'undefined') {
          seen = [];
      } else if (indexOf(seen, obj) >= 0) {
          return '[Circular]';
      }
  
      function inspect(value, from, noIndent) {
          if (from) {
              seen = $arrSlice.call(seen);
              seen.push(from);
          }
          if (noIndent) {
              var newOpts = {
                  depth: opts.depth
              };
              if (has(opts, 'quoteStyle')) {
                  newOpts.quoteStyle = opts.quoteStyle;
              }
              return inspect_(value, newOpts, depth + 1, seen);
          }
          return inspect_(value, opts, depth + 1, seen);
      }
  
      if (typeof obj === 'function') {
          var name = nameOf(obj);
          var keys = arrObjKeys(obj, inspect);
          return '[Function' + (name ? ': ' + name : ' (anonymous)') + ']' + (keys.length > 0 ? ' { ' + $join.call(keys, ', ') + ' }' : '');
      }
      if (isSymbol(obj)) {
          var symString = hasShammedSymbols ? $replace.call(String(obj), /^(Symbol\(.*\))_[^)]*$/, '$1') : symToString.call(obj);
          return typeof obj === 'object' && !hasShammedSymbols ? markBoxed(symString) : symString;
      }
      if (isElement(obj)) {
          var s = '<' + $toLowerCase.call(String(obj.nodeName));
          var attrs = obj.attributes || [];
          for (var i = 0; i < attrs.length; i++) {
              s += ' ' + attrs[i].name + '=' + wrapQuotes(quote(attrs[i].value), 'double', opts);
          }
          s += '>';
          if (obj.childNodes && obj.childNodes.length) { s += '...'; }
          s += '</' + $toLowerCase.call(String(obj.nodeName)) + '>';
          return s;
      }
      if (isArray(obj)) {
          if (obj.length === 0) { return '[]'; }
          var xs = arrObjKeys(obj, inspect);
          if (indent && !singleLineValues(xs)) {
              return '[' + indentedJoin(xs, indent) + ']';
          }
          return '[ ' + $join.call(xs, ', ') + ' ]';
      }
      if (isError(obj)) {
          var parts = arrObjKeys(obj, inspect);
          if ('cause' in obj && !isEnumerable.call(obj, 'cause')) {
              return '{ [' + String(obj) + '] ' + $join.call($concat.call('[cause]: ' + inspect(obj.cause), parts), ', ') + ' }';
          }
          if (parts.length === 0) { return '[' + String(obj) + ']'; }
          return '{ [' + String(obj) + '] ' + $join.call(parts, ', ') + ' }';
      }
      if (typeof obj === 'object' && customInspect) {
          if (inspectSymbol && typeof obj[inspectSymbol] === 'function') {
              return obj[inspectSymbol]();
          } else if (customInspect !== 'symbol' && typeof obj.inspect === 'function') {
              return obj.inspect();
          }
      }
      if (isMap(obj)) {
          var mapParts = [];
          mapForEach.call(obj, function (value, key) {
              mapParts.push(inspect(key, obj, true) + ' => ' + inspect(value, obj));
          });
          return collectionOf('Map', mapSize.call(obj), mapParts, indent);
      }
      if (isSet(obj)) {
          var setParts = [];
          setForEach.call(obj, function (value) {
              setParts.push(inspect(value, obj));
          });
          return collectionOf('Set', setSize.call(obj), setParts, indent);
      }
      if (isWeakMap(obj)) {
          return weakCollectionOf('WeakMap');
      }
      if (isWeakSet(obj)) {
          return weakCollectionOf('WeakSet');
      }
      if (isWeakRef(obj)) {
          return weakCollectionOf('WeakRef');
      }
      if (isNumber(obj)) {
          return markBoxed(inspect(Number(obj)));
      }
      if (isBigInt(obj)) {
          return markBoxed(inspect(bigIntValueOf.call(obj)));
      }
      if (isBoolean(obj)) {
          return markBoxed(booleanValueOf.call(obj));
      }
      if (isString(obj)) {
          return markBoxed(inspect(String(obj)));
      }
      if (!isDate(obj) && !isRegExp(obj)) {
          var ys = arrObjKeys(obj, inspect);
          var isPlainObject = gPO ? gPO(obj) === Object.prototype : obj instanceof Object || obj.constructor === Object;
          var protoTag = obj instanceof Object ? '' : 'null prototype';
          var stringTag = !isPlainObject && toStringTag && Object(obj) === obj && toStringTag in obj ? $slice.call(toStr(obj), 8, -1) : protoTag ? 'Object' : '';
          var constructorTag = isPlainObject || typeof obj.constructor !== 'function' ? '' : obj.constructor.name ? obj.constructor.name + ' ' : '';
          var tag = constructorTag + (stringTag || protoTag ? '[' + $join.call($concat.call([], stringTag || [], protoTag || []), ': ') + '] ' : '');
          if (ys.length === 0) { return tag + '{}'; }
          if (indent) {
              return tag + '{' + indentedJoin(ys, indent) + '}';
          }
          return tag + '{ ' + $join.call(ys, ', ') + ' }';
      }
      return String(obj);
  };
  
  function wrapQuotes(s, defaultStyle, opts) {
      var quoteChar = (opts.quoteStyle || defaultStyle) === 'double' ? '"' : "'";
      return quoteChar + s + quoteChar;
  }
  
  function quote(s) {
      return $replace.call(String(s), /"/g, '&quot;');
  }
  
  function isArray(obj) { return toStr(obj) === '[object Array]' && (!toStringTag || !(typeof obj === 'object' && toStringTag in obj)); }
  function isDate(obj) { return toStr(obj) === '[object Date]' && (!toStringTag || !(typeof obj === 'object' && toStringTag in obj)); }
  function isRegExp(obj) { return toStr(obj) === '[object RegExp]' && (!toStringTag || !(typeof obj === 'object' && toStringTag in obj)); }
  function isError(obj) { return toStr(obj) === '[object Error]' && (!toStringTag || !(typeof obj === 'object' && toStringTag in obj)); }
  function isString(obj) { return toStr(obj) === '[object String]' && (!toStringTag || !(typeof obj === 'object' && toStringTag in obj)); }
  function isNumber(obj) { return toStr(obj) === '[object Number]' && (!toStringTag || !(typeof obj === 'object' && toStringTag in obj)); }
  function isBoolean(obj) { return toStr(obj) === '[object Boolean]' && (!toStringTag || !(typeof obj === 'object' && toStringTag in obj)); }
  
  // Symbol and BigInt do have Symbol.toStringTag by spec, so that can't be used to eliminate false positives
  function isSymbol(obj) {
      if (hasShammedSymbols) {
          return obj && typeof obj === 'object' && obj instanceof Symbol;
      }
      if (typeof obj === 'symbol') {
          return true;
      }
      if (!obj || typeof obj !== 'object' || !symToString) {
          return false;
      }
      try {
          symToString.call(obj);
          return true;
      } catch (e) {}
      return false;
  }
  
  function isBigInt(obj) {
      if (!obj || typeof obj !== 'object' || !bigIntValueOf) {
          return false;
      }
      try {
          bigIntValueOf.call(obj);
          return true;
      } catch (e) {}
      return false;
  }
  
  var hasOwn = Object.prototype.hasOwnProperty || function (key) { return key in this; };
  function has(obj, key) {
      return hasOwn.call(obj, key);
  }
  
  function toStr(obj) {
      return objectToString.call(obj);
  }
  
  function nameOf(f) {
      if (f.name) { return f.name; }
      var m = $match.call(functionToString.call(f), /^function\s*([\w$]+)/);
      if (m) { return m[1]; }
      return null;
  }
  
  function indexOf(xs, x) {
      if (xs.indexOf) { return xs.indexOf(x); }
      for (var i = 0, l = xs.length; i < l; i++) {
          if (xs[i] === x) { return i; }
      }
      return -1;
  }
  
  function isMap(x) {
      if (!mapSize || !x || typeof x !== 'object') {
          return false;
      }
      try {
          mapSize.call(x);
          try {
              setSize.call(x);
          } catch (s) {
              return true;
          }
          return x instanceof Map; // core-js workaround, pre-v2.5.0
      } catch (e) {}
      return false;
  }
  
  function isWeakMap(x) {
      if (!weakMapHas || !x || typeof x !== 'object') {
          return false;
      }
      try {
          weakMapHas.call(x, weakMapHas);
          try {
              weakSetHas.call(x, weakSetHas);
          } catch (s) {
              return true;
          }
          return x instanceof WeakMap; // core-js workaround, pre-v2.5.0
      } catch (e) {}
      return false;
  }
  
  function isWeakRef(x) {
      if (!weakRefDeref || !x || typeof x !== 'object') {
          return false;
      }
      try {
          weakRefDeref.call(x);
          return true;
      } catch (e) {}
      return false;
  }
  
  function isSet(x) {
      if (!setSize || !x || typeof x !== 'object') {
          return false;
      }
      try {
          setSize.call(x);
          try {
              mapSize.call(x);
          } catch (m) {
              return true;
          }
          return x instanceof Set; // core-js workaround, pre-v2.5.0
      } catch (e) {}
      return false;
  }
  
  function isWeakSet(x) {
      if (!weakSetHas || !x || typeof x !== 'object') {
          return false;
      }
      try {
          weakSetHas.call(x, weakSetHas);
          try {
              weakMapHas.call(x, weakMapHas);
          } catch (s) {
              return true;
          }
          return x instanceof WeakSet; // core-js workaround, pre-v2.5.0
      } catch (e) {}
      return false;
  }
  
  function isElement(x) {
      if (!x || typeof x !== 'object') { return false; }
      if (typeof HTMLElement !== 'undefined' && x instanceof HTMLElement) {
          return true;
      }
      return typeof x.nodeName === 'string' && typeof x.getAttribute === 'function';
  }
  
  function inspectString(str, opts) {
      if (str.length > opts.maxStringLength) {
          var remaining = str.length - opts.maxStringLength;
          var trailer = '... ' + remaining + ' more character' + (remaining > 1 ? 's' : '');
          return inspectString($slice.call(str, 0, opts.maxStringLength), opts) + trailer;
      }
      // eslint-disable-next-line no-control-regex
      var s = $replace.call($replace.call(str, /(['\\])/g, '\\$1'), /[\x00-\x1f]/g, lowbyte);
      return wrapQuotes(s, 'single', opts);
  }
  
  function lowbyte(c) {
      var n = c.charCodeAt(0);
      var x = {
          8: 'b',
          9: 't',
          10: 'n',
          12: 'f',
          13: 'r'
      }[n];
      if (x) { return '\\' + x; }
      return '\\x' + (n < 0x10 ? '0' : '') + $toUpperCase.call(n.toString(16));
  }
  
  function markBoxed(str) {
      return 'Object(' + str + ')';
  }
  
  function weakCollectionOf(type) {
      return type + ' { ? }';
  }
  
  function collectionOf(type, size, entries, indent) {
      var joinedEntries = indent ? indentedJoin(entries, indent) : $join.call(entries, ', ');
      return type + ' (' + size + ') {' + joinedEntries + '}';
  }
  
  function singleLineValues(xs) {
      for (var i = 0; i < xs.length; i++) {
          if (indexOf(xs[i], '\n') >= 0) {
              return false;
          }
      }
      return true;
  }
  
  function getIndent(opts, depth) {
      var baseIndent;
      if (opts.indent === '\t') {
          baseIndent = '\t';
      } else if (typeof opts.indent === 'number' && opts.indent > 0) {
          baseIndent = $join.call(Array(opts.indent + 1), ' ');
      } else {
          return null;
      }
      return {
          base: baseIndent,
          prev: $join.call(Array(depth + 1), baseIndent)
      };
  }
  
  function indentedJoin(xs, indent) {
      if (xs.length === 0) { return ''; }
      var lineJoiner = '\n' + indent.prev + indent.base;
      return lineJoiner + $join.call(xs, ',' + lineJoiner) + '\n' + indent.prev;
  }
  
  function arrObjKeys(obj, inspect) {
      var isArr = isArray(obj);
      var xs = [];
      if (isArr) {
          xs.length = obj.length;
          for (var i = 0; i < obj.length; i++) {
              xs[i] = has(obj, i) ? inspect(obj[i], obj) : '';
          }
      }
      var syms = typeof gOPS === 'function' ? gOPS(obj) : [];
      var symMap;
      if (hasShammedSymbols) {
          symMap = {};
          for (var k = 0; k < syms.length; k++) {
              symMap['$' + syms[k]] = syms[k];
          }
      }
  
      for (var key in obj) { // eslint-disable-line no-restricted-syntax
          if (!has(obj, key)) { continue; } // eslint-disable-line no-restricted-syntax, no-continue
          if (isArr && String(Number(key)) === key && key < obj.length) { continue; } // eslint-disable-line no-restricted-syntax, no-continue
          if (hasShammedSymbols && symMap['$' + key] instanceof Symbol) {
              // this is to prevent shammed Symbols, which are stored as strings, from being included in the string key section
              continue; // eslint-disable-line no-restricted-syntax, no-continue
          } else if ($test.call(/[^\w$]/, key)) {
              xs.push(inspect(key, obj) + ': ' + inspect(obj[key], obj));
          } else {
              xs.push(key + ': ' + inspect(obj[key], obj));
          }
      }
      if (typeof gOPS === 'function') {
          for (var j = 0; j < syms.length; j++) {
              if (isEnumerable.call(obj, syms[j])) {
                  xs.push('[' + inspect(syms[j]) + ']: ' + inspect(obj[syms[j]], obj));
              }
          }
      }
      return xs;
  }
  
  
  /***/ }),
  
  /***/ "./node_modules/process/browser.js":
  /*!*****************************************!*\
    !*** ./node_modules/process/browser.js ***!
    \*****************************************/
  /***/ ((module) => {
  
  // 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/qs/lib/formats.js":
  /*!****************************************!*\
    !*** ./node_modules/qs/lib/formats.js ***!
    \****************************************/
  /***/ ((module) => {
  
  "use strict";
  
  
  var replace = String.prototype.replace;
  var percentTwenties = /%20/g;
  
  var Format = {
      RFC1738: 'RFC1738',
      RFC3986: 'RFC3986'
  };
  
  module.exports = {
      'default': Format.RFC3986,
      formatters: {
          RFC1738: function (value) {
              return replace.call(value, percentTwenties, '+');
          },
          RFC3986: function (value) {
              return String(value);
          }
      },
      RFC1738: Format.RFC1738,
      RFC3986: Format.RFC3986
  };
  
  
  /***/ }),
  
  /***/ "./node_modules/qs/lib/index.js":
  /*!**************************************!*\
    !*** ./node_modules/qs/lib/index.js ***!
    \**************************************/
  /***/ ((module, __unused_webpack_exports, __webpack_require__) => {
  
  "use strict";
  
  
  var stringify = __webpack_require__(/*! ./stringify */ "./node_modules/qs/lib/stringify.js");
  var parse = __webpack_require__(/*! ./parse */ "./node_modules/qs/lib/parse.js");
  var formats = __webpack_require__(/*! ./formats */ "./node_modules/qs/lib/formats.js");
  
  module.exports = {
      formats: formats,
      parse: parse,
      stringify: stringify
  };
  
  
  /***/ }),
  
  /***/ "./node_modules/qs/lib/parse.js":
  /*!**************************************!*\
    !*** ./node_modules/qs/lib/parse.js ***!
    \**************************************/
  /***/ ((module, __unused_webpack_exports, __webpack_require__) => {
  
  "use strict";
  
  
  var utils = __webpack_require__(/*! ./utils */ "./node_modules/qs/lib/utils.js");
  
  var has = Object.prototype.hasOwnProperty;
  var isArray = Array.isArray;
  
  var defaults = {
      allowDots: false,
      allowPrototypes: false,
      allowSparse: false,
      arrayLimit: 20,
      charset: 'utf-8',
      charsetSentinel: false,
      comma: false,
      decoder: utils.decode,
      delimiter: '&',
      depth: 5,
      ignoreQueryPrefix: false,
      interpretNumericEntities: false,
      parameterLimit: 1000,
      parseArrays: true,
      plainObjects: false,
      strictNullHandling: false
  };
  
  var interpretNumericEntities = function (str) {
      return str.replace(/&#(\d+);/g, function ($0, numberStr) {
          return String.fromCharCode(parseInt(numberStr, 10));
      });
  };
  
  var parseArrayValue = function (val, options) {
      if (val && typeof val === 'string' && options.comma && val.indexOf(',') > -1) {
          return val.split(',');
      }
  
      return val;
  };
  
  // This is what browsers will submit when the ✓ character occurs in an
  // application/x-www-form-urlencoded body and the encoding of the page containing
  // the form is iso-8859-1, or when the submitted form has an accept-charset
  // attribute of iso-8859-1. Presumably also with other charsets that do not contain
  // the ✓ character, such as us-ascii.
  var isoSentinel = 'utf8=%26%2310003%3B'; // encodeURIComponent('&#10003;')
  
  // These are the percent-encoded utf-8 octets representing a checkmark, indicating that the request actually is utf-8 encoded.
  var charsetSentinel = 'utf8=%E2%9C%93'; // encodeURIComponent('✓')
  
  var parseValues = function parseQueryStringValues(str, options) {
      var obj = {};
      var cleanStr = options.ignoreQueryPrefix ? str.replace(/^\?/, '') : str;
      var limit = options.parameterLimit === Infinity ? undefined : options.parameterLimit;
      var parts = cleanStr.split(options.delimiter, limit);
      var skipIndex = -1; // Keep track of where the utf8 sentinel was found
      var i;
  
      var charset = options.charset;
      if (options.charsetSentinel) {
          for (i = 0; i < parts.length; ++i) {
              if (parts[i].indexOf('utf8=') === 0) {
                  if (parts[i] === charsetSentinel) {
                      charset = 'utf-8';
                  } else if (parts[i] === isoSentinel) {
                      charset = 'iso-8859-1';
                  }
                  skipIndex = i;
                  i = parts.length; // The eslint settings do not allow break;
              }
          }
      }
  
      for (i = 0; i < parts.length; ++i) {
          if (i === skipIndex) {
              continue;
          }
          var part = parts[i];
  
          var bracketEqualsPos = part.indexOf(']=');
          var pos = bracketEqualsPos === -1 ? part.indexOf('=') : bracketEqualsPos + 1;
  
          var key, val;
          if (pos === -1) {
              key = options.decoder(part, defaults.decoder, charset, 'key');
              val = options.strictNullHandling ? null : '';
          } else {
              key = options.decoder(part.slice(0, pos), defaults.decoder, charset, 'key');
              val = utils.maybeMap(
                  parseArrayValue(part.slice(pos + 1), options),
                  function (encodedVal) {
                      return options.decoder(encodedVal, defaults.decoder, charset, 'value');
                  }
              );
          }
  
          if (val && options.interpretNumericEntities && charset === 'iso-8859-1') {
              val = interpretNumericEntities(val);
          }
  
          if (part.indexOf('[]=') > -1) {
              val = isArray(val) ? [val] : val;
          }
  
          if (has.call(obj, key)) {
              obj[key] = utils.combine(obj[key], val);
          } else {
              obj[key] = val;
          }
      }
  
      return obj;
  };
  
  var parseObject = function (chain, val, options, valuesParsed) {
      var leaf = valuesParsed ? val : parseArrayValue(val, options);
  
      for (var i = chain.length - 1; i >= 0; --i) {
          var obj;
          var root = chain[i];
  
          if (root === '[]' && options.parseArrays) {
              obj = [].concat(leaf);
          } else {
              obj = options.plainObjects ? Object.create(null) : {};
              var cleanRoot = root.charAt(0) === '[' && root.charAt(root.length - 1) === ']' ? root.slice(1, -1) : root;
              var index = parseInt(cleanRoot, 10);
              if (!options.parseArrays && cleanRoot === '') {
                  obj = { 0: leaf };
              } else if (
                  !isNaN(index)
                  && root !== cleanRoot
                  && String(index) === cleanRoot
                  && index >= 0
                  && (options.parseArrays && index <= options.arrayLimit)
              ) {
                  obj = [];
                  obj[index] = leaf;
              } else if (cleanRoot !== '__proto__') {
                  obj[cleanRoot] = leaf;
              }
          }
  
          leaf = obj;
      }
  
      return leaf;
  };
  
  var parseKeys = function parseQueryStringKeys(givenKey, val, options, valuesParsed) {
      if (!givenKey) {
          return;
      }
  
      // Transform dot notation to bracket notation
      var key = options.allowDots ? givenKey.replace(/\.([^.[]+)/g, '[$1]') : givenKey;
  
      // The regex chunks
  
      var brackets = /(\[[^[\]]*])/;
      var child = /(\[[^[\]]*])/g;
  
      // Get the parent
  
      var segment = options.depth > 0 && brackets.exec(key);
      var parent = segment ? key.slice(0, segment.index) : key;
  
      // Stash the parent if it exists
  
      var keys = [];
      if (parent) {
          // If we aren't using plain objects, optionally prefix keys that would overwrite object prototype properties
          if (!options.plainObjects && has.call(Object.prototype, parent)) {
              if (!options.allowPrototypes) {
                  return;
              }
          }
  
          keys.push(parent);
      }
  
      // Loop through children appending to the array until we hit depth
  
      var i = 0;
      while (options.depth > 0 && (segment = child.exec(key)) !== null && i < options.depth) {
          i += 1;
          if (!options.plainObjects && has.call(Object.prototype, segment[1].slice(1, -1))) {
              if (!options.allowPrototypes) {
                  return;
              }
          }
          keys.push(segment[1]);
      }
  
      // If there's a remainder, just add whatever is left
  
      if (segment) {
          keys.push('[' + key.slice(segment.index) + ']');
      }
  
      return parseObject(keys, val, options, valuesParsed);
  };
  
  var normalizeParseOptions = function normalizeParseOptions(opts) {
      if (!opts) {
          return defaults;
      }
  
      if (opts.decoder !== null && opts.decoder !== undefined && typeof opts.decoder !== 'function') {
          throw new TypeError('Decoder has to be a function.');
      }
  
      if (typeof opts.charset !== 'undefined' && opts.charset !== 'utf-8' && opts.charset !== 'iso-8859-1') {
          throw new TypeError('The charset option must be either utf-8, iso-8859-1, or undefined');
      }
      var charset = typeof opts.charset === 'undefined' ? defaults.charset : opts.charset;
  
      return {
          allowDots: typeof opts.allowDots === 'undefined' ? defaults.allowDots : !!opts.allowDots,
          allowPrototypes: typeof opts.allowPrototypes === 'boolean' ? opts.allowPrototypes : defaults.allowPrototypes,
          allowSparse: typeof opts.allowSparse === 'boolean' ? opts.allowSparse : defaults.allowSparse,
          arrayLimit: typeof opts.arrayLimit === 'number' ? opts.arrayLimit : defaults.arrayLimit,
          charset: charset,
          charsetSentinel: typeof opts.charsetSentinel === 'boolean' ? opts.charsetSentinel : defaults.charsetSentinel,
          comma: typeof opts.comma === 'boolean' ? opts.comma : defaults.comma,
          decoder: typeof opts.decoder === 'function' ? opts.decoder : defaults.decoder,
          delimiter: typeof opts.delimiter === 'string' || utils.isRegExp(opts.delimiter) ? opts.delimiter : defaults.delimiter,
          // eslint-disable-next-line no-implicit-coercion, no-extra-parens
          depth: (typeof opts.depth === 'number' || opts.depth === false) ? +opts.depth : defaults.depth,
          ignoreQueryPrefix: opts.ignoreQueryPrefix === true,
          interpretNumericEntities: typeof opts.interpretNumericEntities === 'boolean' ? opts.interpretNumericEntities : defaults.interpretNumericEntities,
          parameterLimit: typeof opts.parameterLimit === 'number' ? opts.parameterLimit : defaults.parameterLimit,
          parseArrays: opts.parseArrays !== false,
          plainObjects: typeof opts.plainObjects === 'boolean' ? opts.plainObjects : defaults.plainObjects,
          strictNullHandling: typeof opts.strictNullHandling === 'boolean' ? opts.strictNullHandling : defaults.strictNullHandling
      };
  };
  
  module.exports = function (str, opts) {
      var options = normalizeParseOptions(opts);
  
      if (str === '' || str === null || typeof str === 'undefined') {
          return options.plainObjects ? Object.create(null) : {};
      }
  
      var tempObj = typeof str === 'string' ? parseValues(str, options) : str;
      var obj = options.plainObjects ? Object.create(null) : {};
  
      // Iterate over the keys and setup the new object
  
      var keys = Object.keys(tempObj);
      for (var i = 0; i < keys.length; ++i) {
          var key = keys[i];
          var newObj = parseKeys(key, tempObj[key], options, typeof str === 'string');
          obj = utils.merge(obj, newObj, options);
      }
  
      if (options.allowSparse === true) {
          return obj;
      }
  
      return utils.compact(obj);
  };
  
  
  /***/ }),
  
  /***/ "./node_modules/qs/lib/stringify.js":
  /*!******************************************!*\
    !*** ./node_modules/qs/lib/stringify.js ***!
    \******************************************/
  /***/ ((module, __unused_webpack_exports, __webpack_require__) => {
  
  "use strict";
  
  
  var getSideChannel = __webpack_require__(/*! side-channel */ "./node_modules/side-channel/index.js");
  var utils = __webpack_require__(/*! ./utils */ "./node_modules/qs/lib/utils.js");
  var formats = __webpack_require__(/*! ./formats */ "./node_modules/qs/lib/formats.js");
  var has = Object.prototype.hasOwnProperty;
  
  var arrayPrefixGenerators = {
      brackets: function brackets(prefix) {
          return prefix + '[]';
      },
      comma: 'comma',
      indices: function indices(prefix, key) {
          return prefix + '[' + key + ']';
      },
      repeat: function repeat(prefix) {
          return prefix;
      }
  };
  
  var isArray = Array.isArray;
  var split = String.prototype.split;
  var push = Array.prototype.push;
  var pushToArray = function (arr, valueOrArray) {
      push.apply(arr, isArray(valueOrArray) ? valueOrArray : [valueOrArray]);
  };
  
  var toISO = Date.prototype.toISOString;
  
  var defaultFormat = formats['default'];
  var defaults = {
      addQueryPrefix: false,
      allowDots: false,
      charset: 'utf-8',
      charsetSentinel: false,
      delimiter: '&',
      encode: true,
      encoder: utils.encode,
      encodeValuesOnly: false,
      format: defaultFormat,
      formatter: formats.formatters[defaultFormat],
      // deprecated
      indices: false,
      serializeDate: function serializeDate(date) {
          return toISO.call(date);
      },
      skipNulls: false,
      strictNullHandling: false
  };
  
  var isNonNullishPrimitive = function isNonNullishPrimitive(v) {
      return typeof v === 'string'
          || typeof v === 'number'
          || typeof v === 'boolean'
          || typeof v === 'symbol'
          || typeof v === 'bigint';
  };
  
  var sentinel = {};
  
  var stringify = function stringify(
      object,
      prefix,
      generateArrayPrefix,
      strictNullHandling,
      skipNulls,
      encoder,
      filter,
      sort,
      allowDots,
      serializeDate,
      format,
      formatter,
      encodeValuesOnly,
      charset,
      sideChannel
  ) {
      var obj = object;
  
      var tmpSc = sideChannel;
      var step = 0;
      var findFlag = false;
      while ((tmpSc = tmpSc.get(sentinel)) !== void undefined && !findFlag) {
          // Where object last appeared in the ref tree
          var pos = tmpSc.get(object);
          step += 1;
          if (typeof pos !== 'undefined') {
              if (pos === step) {
                  throw new RangeError('Cyclic object value');
              } else {
                  findFlag = true; // Break while
              }
          }
          if (typeof tmpSc.get(sentinel) === 'undefined') {
              step = 0;
          }
      }
  
      if (typeof filter === 'function') {
          obj = filter(prefix, obj);
      } else if (obj instanceof Date) {
          obj = serializeDate(obj);
      } else if (generateArrayPrefix === 'comma' && isArray(obj)) {
          obj = utils.maybeMap(obj, function (value) {
              if (value instanceof Date) {
                  return serializeDate(value);
              }
              return value;
          });
      }
  
      if (obj === null) {
          if (strictNullHandling) {
              return encoder && !encodeValuesOnly ? encoder(prefix, defaults.encoder, charset, 'key', format) : prefix;
          }
  
          obj = '';
      }
  
      if (isNonNullishPrimitive(obj) || utils.isBuffer(obj)) {
          if (encoder) {
              var keyValue = encodeValuesOnly ? prefix : encoder(prefix, defaults.encoder, charset, 'key', format);
              if (generateArrayPrefix === 'comma' && encodeValuesOnly) {
                  var valuesArray = split.call(String(obj), ',');
                  var valuesJoined = '';
                  for (var i = 0; i < valuesArray.length; ++i) {
                      valuesJoined += (i === 0 ? '' : ',') + formatter(encoder(valuesArray[i], defaults.encoder, charset, 'value', format));
                  }
                  return [formatter(keyValue) + '=' + valuesJoined];
              }
              return [formatter(keyValue) + '=' + formatter(encoder(obj, defaults.encoder, charset, 'value', format))];
          }
          return [formatter(prefix) + '=' + formatter(String(obj))];
      }
  
      var values = [];
  
      if (typeof obj === 'undefined') {
          return values;
      }
  
      var objKeys;
      if (generateArrayPrefix === 'comma' && isArray(obj)) {
          // we need to join elements in
          objKeys = [{ value: obj.length > 0 ? obj.join(',') || null : void undefined }];
      } else if (isArray(filter)) {
          objKeys = filter;
      } else {
          var keys = Object.keys(obj);
          objKeys = sort ? keys.sort(sort) : keys;
      }
  
      for (var j = 0; j < objKeys.length; ++j) {
          var key = objKeys[j];
          var value = typeof key === 'object' && typeof key.value !== 'undefined' ? key.value : obj[key];
  
          if (skipNulls && value === null) {
              continue;
          }
  
          var keyPrefix = isArray(obj)
              ? typeof generateArrayPrefix === 'function' ? generateArrayPrefix(prefix, key) : prefix
              : prefix + (allowDots ? '.' + key : '[' + key + ']');
  
          sideChannel.set(object, step);
          var valueSideChannel = getSideChannel();
          valueSideChannel.set(sentinel, sideChannel);
          pushToArray(values, stringify(
              value,
              keyPrefix,
              generateArrayPrefix,
              strictNullHandling,
              skipNulls,
              encoder,
              filter,
              sort,
              allowDots,
              serializeDate,
              format,
              formatter,
              encodeValuesOnly,
              charset,
              valueSideChannel
          ));
      }
  
      return values;
  };
  
  var normalizeStringifyOptions = function normalizeStringifyOptions(opts) {
      if (!opts) {
          return defaults;
      }
  
      if (opts.encoder !== null && typeof opts.encoder !== 'undefined' && typeof opts.encoder !== 'function') {
          throw new TypeError('Encoder has to be a function.');
      }
  
      var charset = opts.charset || defaults.charset;
      if (typeof opts.charset !== 'undefined' && opts.charset !== 'utf-8' && opts.charset !== 'iso-8859-1') {
          throw new TypeError('The charset option must be either utf-8, iso-8859-1, or undefined');
      }
  
      var format = formats['default'];
      if (typeof opts.format !== 'undefined') {
          if (!has.call(formats.formatters, opts.format)) {
              throw new TypeError('Unknown format option provided.');
          }
          format = opts.format;
      }
      var formatter = formats.formatters[format];
  
      var filter = defaults.filter;
      if (typeof opts.filter === 'function' || isArray(opts.filter)) {
          filter = opts.filter;
      }
  
      return {
          addQueryPrefix: typeof opts.addQueryPrefix === 'boolean' ? opts.addQueryPrefix : defaults.addQueryPrefix,
          allowDots: typeof opts.allowDots === 'undefined' ? defaults.allowDots : !!opts.allowDots,
          charset: charset,
          charsetSentinel: typeof opts.charsetSentinel === 'boolean' ? opts.charsetSentinel : defaults.charsetSentinel,
          delimiter: typeof opts.delimiter === 'undefined' ? defaults.delimiter : opts.delimiter,
          encode: typeof opts.encode === 'boolean' ? opts.encode : defaults.encode,
          encoder: typeof opts.encoder === 'function' ? opts.encoder : defaults.encoder,
          encodeValuesOnly: typeof opts.encodeValuesOnly === 'boolean' ? opts.encodeValuesOnly : defaults.encodeValuesOnly,
          filter: filter,
          format: format,
          formatter: formatter,
          serializeDate: typeof opts.serializeDate === 'function' ? opts.serializeDate : defaults.serializeDate,
          skipNulls: typeof opts.skipNulls === 'boolean' ? opts.skipNulls : defaults.skipNulls,
          sort: typeof opts.sort === 'function' ? opts.sort : null,
          strictNullHandling: typeof opts.strictNullHandling === 'boolean' ? opts.strictNullHandling : defaults.strictNullHandling
      };
  };
  
  module.exports = function (object, opts) {
      var obj = object;
      var options = normalizeStringifyOptions(opts);
  
      var objKeys;
      var filter;
  
      if (typeof options.filter === 'function') {
          filter = options.filter;
          obj = filter('', obj);
      } else if (isArray(options.filter)) {
          filter = options.filter;
          objKeys = filter;
      }
  
      var keys = [];
  
      if (typeof obj !== 'object' || obj === null) {
          return '';
      }
  
      var arrayFormat;
      if (opts && opts.arrayFormat in arrayPrefixGenerators) {
          arrayFormat = opts.arrayFormat;
      } else if (opts && 'indices' in opts) {
          arrayFormat = opts.indices ? 'indices' : 'repeat';
      } else {
          arrayFormat = 'indices';
      }
  
      var generateArrayPrefix = arrayPrefixGenerators[arrayFormat];
  
      if (!objKeys) {
          objKeys = Object.keys(obj);
      }
  
      if (options.sort) {
          objKeys.sort(options.sort);
      }
  
      var sideChannel = getSideChannel();
      for (var i = 0; i < objKeys.length; ++i) {
          var key = objKeys[i];
  
          if (options.skipNulls && obj[key] === null) {
              continue;
          }
          pushToArray(keys, stringify(
              obj[key],
              key,
              generateArrayPrefix,
              options.strictNullHandling,
              options.skipNulls,
              options.encode ? options.encoder : null,
              options.filter,
              options.sort,
              options.allowDots,
              options.serializeDate,
              options.format,
              options.formatter,
              options.encodeValuesOnly,
              options.charset,
              sideChannel
          ));
      }
  
      var joined = keys.join(options.delimiter);
      var prefix = options.addQueryPrefix === true ? '?' : '';
  
      if (options.charsetSentinel) {
          if (options.charset === 'iso-8859-1') {
              // encodeURIComponent('&#10003;'), the "numeric entity" representation of a checkmark
              prefix += 'utf8=%26%2310003%3B&';
          } else {
              // encodeURIComponent('✓')
              prefix += 'utf8=%E2%9C%93&';
          }
      }
  
      return joined.length > 0 ? prefix + joined : '';
  };
  
  
  /***/ }),
  
  /***/ "./node_modules/qs/lib/utils.js":
  /*!**************************************!*\
    !*** ./node_modules/qs/lib/utils.js ***!
    \**************************************/
  /***/ ((module, __unused_webpack_exports, __webpack_require__) => {
  
  "use strict";
  
  
  var formats = __webpack_require__(/*! ./formats */ "./node_modules/qs/lib/formats.js");
  
  var has = Object.prototype.hasOwnProperty;
  var isArray = Array.isArray;
  
  var hexTable = (function () {
      var array = [];
      for (var i = 0; i < 256; ++i) {
          array.push('%' + ((i < 16 ? '0' : '') + i.toString(16)).toUpperCase());
      }
  
      return array;
  }());
  
  var compactQueue = function compactQueue(queue) {
      while (queue.length > 1) {
          var item = queue.pop();
          var obj = item.obj[item.prop];
  
          if (isArray(obj)) {
              var compacted = [];
  
              for (var j = 0; j < obj.length; ++j) {
                  if (typeof obj[j] !== 'undefined') {
                      compacted.push(obj[j]);
                  }
              }
  
              item.obj[item.prop] = compacted;
          }
      }
  };
  
  var arrayToObject = function arrayToObject(source, options) {
      var obj = options && options.plainObjects ? Object.create(null) : {};
      for (var i = 0; i < source.length; ++i) {
          if (typeof source[i] !== 'undefined') {
              obj[i] = source[i];
          }
      }
  
      return obj;
  };
  
  var merge = function merge(target, source, options) {
      /* eslint no-param-reassign: 0 */
      if (!source) {
          return target;
      }
  
      if (typeof source !== 'object') {
          if (isArray(target)) {
              target.push(source);
          } else if (target && typeof target === 'object') {
              if ((options && (options.plainObjects || options.allowPrototypes)) || !has.call(Object.prototype, source)) {
                  target[source] = true;
              }
          } else {
              return [target, source];
          }
  
          return target;
      }
  
      if (!target || typeof target !== 'object') {
          return [target].concat(source);
      }
  
      var mergeTarget = target;
      if (isArray(target) && !isArray(source)) {
          mergeTarget = arrayToObject(target, options);
      }
  
      if (isArray(target) && isArray(source)) {
          source.forEach(function (item, i) {
              if (has.call(target, i)) {
                  var targetItem = target[i];
                  if (targetItem && typeof targetItem === 'object' && item && typeof item === 'object') {
                      target[i] = merge(targetItem, item, options);
                  } else {
                      target.push(item);
                  }
              } else {
                  target[i] = item;
              }
          });
          return target;
      }
  
      return Object.keys(source).reduce(function (acc, key) {
          var value = source[key];
  
          if (has.call(acc, key)) {
              acc[key] = merge(acc[key], value, options);
          } else {
              acc[key] = value;
          }
          return acc;
      }, mergeTarget);
  };
  
  var assign = function assignSingleSource(target, source) {
      return Object.keys(source).reduce(function (acc, key) {
          acc[key] = source[key];
          return acc;
      }, target);
  };
  
  var decode = function (str, decoder, charset) {
      var strWithoutPlus = str.replace(/\+/g, ' ');
      if (charset === 'iso-8859-1') {
          // unescape never throws, no try...catch needed:
          return strWithoutPlus.replace(/%[0-9a-f]{2}/gi, unescape);
      }
      // utf-8
      try {
          return decodeURIComponent(strWithoutPlus);
      } catch (e) {
          return strWithoutPlus;
      }
  };
  
  var encode = function encode(str, defaultEncoder, charset, kind, format) {
      // This code was originally written by Brian White (mscdex) for the io.js core querystring library.
      // It has been adapted here for stricter adherence to RFC 3986
      if (str.length === 0) {
          return str;
      }
  
      var string = str;
      if (typeof str === 'symbol') {
          string = Symbol.prototype.toString.call(str);
      } else if (typeof str !== 'string') {
          string = String(str);
      }
  
      if (charset === 'iso-8859-1') {
          return escape(string).replace(/%u[0-9a-f]{4}/gi, function ($0) {
              return '%26%23' + parseInt($0.slice(2), 16) + '%3B';
          });
      }
  
      var out = '';
      for (var i = 0; i < string.length; ++i) {
          var c = string.charCodeAt(i);
  
          if (
              c === 0x2D // -
              || c === 0x2E // .
              || c === 0x5F // _
              || c === 0x7E // ~
              || (c >= 0x30 && c <= 0x39) // 0-9
              || (c >= 0x41 && c <= 0x5A) // a-z
              || (c >= 0x61 && c <= 0x7A) // A-Z
              || (format === formats.RFC1738 && (c === 0x28 || c === 0x29)) // ( )
          ) {
              out += string.charAt(i);
              continue;
          }
  
          if (c < 0x80) {
              out = out + hexTable[c];
              continue;
          }
  
          if (c < 0x800) {
              out = out + (hexTable[0xC0 | (c >> 6)] + hexTable[0x80 | (c & 0x3F)]);
              continue;
          }
  
          if (c < 0xD800 || c >= 0xE000) {
              out = out + (hexTable[0xE0 | (c >> 12)] + hexTable[0x80 | ((c >> 6) & 0x3F)] + hexTable[0x80 | (c & 0x3F)]);
              continue;
          }
  
          i += 1;
          c = 0x10000 + (((c & 0x3FF) << 10) | (string.charCodeAt(i) & 0x3FF));
          /* eslint operator-linebreak: [2, "before"] */
          out += hexTable[0xF0 | (c >> 18)]
              + hexTable[0x80 | ((c >> 12) & 0x3F)]
              + hexTable[0x80 | ((c >> 6) & 0x3F)]
              + hexTable[0x80 | (c & 0x3F)];
      }
  
      return out;
  };
  
  var compact = function compact(value) {
      var queue = [{ obj: { o: value }, prop: 'o' }];
      var refs = [];
  
      for (var i = 0; i < queue.length; ++i) {
          var item = queue[i];
          var obj = item.obj[item.prop];
  
          var keys = Object.keys(obj);
          for (var j = 0; j < keys.length; ++j) {
              var key = keys[j];
              var val = obj[key];
              if (typeof val === 'object' && val !== null && refs.indexOf(val) === -1) {
                  queue.push({ obj: obj, prop: key });
                  refs.push(val);
              }
          }
      }
  
      compactQueue(queue);
  
      return value;
  };
  
  var isRegExp = function isRegExp(obj) {
      return Object.prototype.toString.call(obj) === '[object RegExp]';
  };
  
  var isBuffer = function isBuffer(obj) {
      if (!obj || typeof obj !== 'object') {
          return false;
      }
  
      return !!(obj.constructor && obj.constructor.isBuffer && obj.constructor.isBuffer(obj));
  };
  
  var combine = function combine(a, b) {
      return [].concat(a, b);
  };
  
  var maybeMap = function maybeMap(val, fn) {
      if (isArray(val)) {
          var mapped = [];
          for (var i = 0; i < val.length; i += 1) {
              mapped.push(fn(val[i]));
          }
          return mapped;
      }
      return fn(val);
  };
  
  module.exports = {
      arrayToObject: arrayToObject,
      assign: assign,
      combine: combine,
      compact: compact,
      decode: decode,
      encode: encode,
      isBuffer: isBuffer,
      isRegExp: isRegExp,
      maybeMap: maybeMap,
      merge: merge
  };
  
  
  /***/ }),
  
  /***/ "./node_modules/side-channel/index.js":
  /*!********************************************!*\
    !*** ./node_modules/side-channel/index.js ***!
    \********************************************/
  /***/ ((module, __unused_webpack_exports, __webpack_require__) => {
  
  "use strict";
  
  
  var GetIntrinsic = __webpack_require__(/*! get-intrinsic */ "./node_modules/get-intrinsic/index.js");
  var callBound = __webpack_require__(/*! call-bind/callBound */ "./node_modules/call-bind/callBound.js");
  var inspect = __webpack_require__(/*! object-inspect */ "./node_modules/object-inspect/index.js");
  
  var $TypeError = GetIntrinsic('%TypeError%');
  var $WeakMap = GetIntrinsic('%WeakMap%', true);
  var $Map = GetIntrinsic('%Map%', true);
  
  var $weakMapGet = callBound('WeakMap.prototype.get', true);
  var $weakMapSet = callBound('WeakMap.prototype.set', true);
  var $weakMapHas = callBound('WeakMap.prototype.has', true);
  var $mapGet = callBound('Map.prototype.get', true);
  var $mapSet = callBound('Map.prototype.set', true);
  var $mapHas = callBound('Map.prototype.has', true);
  
  /*
   * This function traverses the list returning the node corresponding to the
   * given key.
   *
   * That node is also moved to the head of the list, so that if it's accessed
   * again we don't need to traverse the whole list. By doing so, all the recently
   * used nodes can be accessed relatively quickly.
   */
  var listGetNode = function (list, key) { // eslint-disable-line consistent-return
  	for (var prev = list, curr; (curr = prev.next) !== null; prev = curr) {
  		if (curr.key === key) {
  			prev.next = curr.next;
  			curr.next = list.next;
  			list.next = curr; // eslint-disable-line no-param-reassign
  			return curr;
  		}
  	}
  };
  
  var listGet = function (objects, key) {
  	var node = listGetNode(objects, key);
  	return node && node.value;
  };
  var listSet = function (objects, key, value) {
  	var node = listGetNode(objects, key);
  	if (node) {
  		node.value = value;
  	} else {
  		// Prepend the new node to the beginning of the list
  		objects.next = { // eslint-disable-line no-param-reassign
  			key: key,
  			next: objects.next,
  			value: value
  		};
  	}
  };
  var listHas = function (objects, key) {
  	return !!listGetNode(objects, key);
  };
  
  module.exports = function getSideChannel() {
  	var $wm;
  	var $m;
  	var $o;
  	var channel = {
  		assert: function (key) {
  			if (!channel.has(key)) {
  				throw new $TypeError('Side channel does not contain ' + inspect(key));
  			}
  		},
  		get: function (key) { // eslint-disable-line consistent-return
  			if ($WeakMap && key && (typeof key === 'object' || typeof key === 'function')) {
  				if ($wm) {
  					return $weakMapGet($wm, key);
  				}
  			} else if ($Map) {
  				if ($m) {
  					return $mapGet($m, key);
  				}
  			} else {
  				if ($o) { // eslint-disable-line no-lonely-if
  					return listGet($o, key);
  				}
  			}
  		},
  		has: function (key) {
  			if ($WeakMap && key && (typeof key === 'object' || typeof key === 'function')) {
  				if ($wm) {
  					return $weakMapHas($wm, key);
  				}
  			} else if ($Map) {
  				if ($m) {
  					return $mapHas($m, key);
  				}
  			} else {
  				if ($o) { // eslint-disable-line no-lonely-if
  					return listHas($o, key);
  				}
  			}
  			return false;
  		},
  		set: function (key, value) {
  			if ($WeakMap && key && (typeof key === 'object' || typeof key === 'function')) {
  				if (!$wm) {
  					$wm = new $WeakMap();
  				}
  				$weakMapSet($wm, key, value);
  			} else if ($Map) {
  				if (!$m) {
  					$m = new $Map();
  				}
  				$mapSet($m, key, value);
  			} else {
  				if (!$o) {
  					/*
  					 * Initialize the linked list as an empty node, so that we don't have
  					 * to special-case handling of the first node: we can always refer to
  					 * it as (previous node).next, instead of something like (list).head
  					 */
  					$o = { key: {}, next: null };
  				}
  				listSet($o, key, value);
  			}
  		}
  	};
  	return channel;
  };
  
  
  /***/ }),
  
  /***/ "./node_modules/vue/dist/vue.esm.js":
  /*!******************************************!*\
    !*** ./node_modules/vue/dist/vue.esm.js ***!
    \******************************************/
  /***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {
  
  "use strict";
  __webpack_require__.r(__webpack_exports__);
  /* harmony export */ __webpack_require__.d(__webpack_exports__, {
  /* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
  /* harmony export */ });
  /*!
   * Vue.js v2.6.14
   * (c) 2014-2021 Evan You
   * Released under the MIT License.
   */
  /*  */
  
  var emptyObject = Object.freeze({});
  
  // These helpers produce better VM code in JS engines due to their
  // explicitness and function inlining.
  function isUndef (v) {
    return v === undefined || v === null
  }
  
  function isDef (v) {
    return v !== undefined && v !== null
  }
  
  function isTrue (v) {
    return v === true
  }
  
  function isFalse (v) {
    return v === false
  }
  
  /**
   * Check if value is primitive.
   */
  function isPrimitive (value) {
    return (
      typeof value === 'string' ||
      typeof value === 'number' ||
      // $flow-disable-line
      typeof value === 'symbol' ||
      typeof value === 'boolean'
    )
  }
  
  /**
   * Quick object check - this is primarily used to tell
   * Objects from primitive values when we know the value
   * is a JSON-compliant type.
   */
  function isObject (obj) {
    return obj !== null && typeof obj === 'object'
  }
  
  /**
   * Get the raw type string of a value, e.g., [object Object].
   */
  var _toString = Object.prototype.toString;
  
  function toRawType (value) {
    return _toString.call(value).slice(8, -1)
  }
  
  /**
   * Strict object type check. Only returns true
   * for plain JavaScript objects.
   */
  function isPlainObject (obj) {
    return _toString.call(obj) === '[object Object]'
  }
  
  function isRegExp (v) {
    return _toString.call(v) === '[object RegExp]'
  }
  
  /**
   * Check if val is a valid array index.
   */
  function isValidArrayIndex (val) {
    var n = parseFloat(String(val));
    return n >= 0 && Math.floor(n) === n && isFinite(val)
  }
  
  function isPromise (val) {
    return (
      isDef(val) &&
      typeof val.then === 'function' &&
      typeof val.catch === 'function'
    )
  }
  
  /**
   * Convert a value to a string that is actually rendered.
   */
  function toString (val) {
    return val == null
      ? ''
      : Array.isArray(val) || (isPlainObject(val) && val.toString === _toString)
        ? JSON.stringify(val, null, 2)
        : String(val)
  }
  
  /**
   * Convert an input value to a number for persistence.
   * If the conversion fails, return original string.
   */
  function toNumber (val) {
    var n = parseFloat(val);
    return isNaN(n) ? val : n
  }
  
  /**
   * Make a map and return a function for checking if a key
   * is in that map.
   */
  function makeMap (
    str,
    expectsLowerCase
  ) {
    var map = Object.create(null);
    var list = str.split(',');
    for (var i = 0; i < list.length; i++) {
      map[list[i]] = true;
    }
    return expectsLowerCase
      ? function (val) { return map[val.toLowerCase()]; }
      : function (val) { return map[val]; }
  }
  
  /**
   * Check if a tag is a built-in tag.
   */
  var isBuiltInTag = makeMap('slot,component', true);
  
  /**
   * Check if an attribute is a reserved attribute.
   */
  var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
  
  /**
   * Remove an item from an array.
   */
  function remove (arr, item) {
    if (arr.length) {
      var index = arr.indexOf(item);
      if (index > -1) {
        return arr.splice(index, 1)
      }
    }
  }
  
  /**
   * Check whether an object has the property.
   */
  var hasOwnProperty = Object.prototype.hasOwnProperty;
  function hasOwn (obj, key) {
    return hasOwnProperty.call(obj, key)
  }
  
  /**
   * Create a cached version of a pure function.
   */
  function cached (fn) {
    var cache = Object.create(null);
    return (function cachedFn (str) {
      var hit = cache[str];
      return hit || (cache[str] = fn(str))
    })
  }
  
  /**
   * Camelize a hyphen-delimited string.
   */
  var camelizeRE = /-(\w)/g;
  var camelize = cached(function (str) {
    return str.replace(camelizeRE, function (_, c) { return c ? c.toUpperCase() : ''; })
  });
  
  /**
   * Capitalize a string.
   */
  var capitalize = cached(function (str) {
    return str.charAt(0).toUpperCase() + str.slice(1)
  });
  
  /**
   * Hyphenate a camelCase string.
   */
  var hyphenateRE = /\B([A-Z])/g;
  var hyphenate = cached(function (str) {
    return str.replace(hyphenateRE, '-$1').toLowerCase()
  });
  
  /**
   * Simple bind polyfill for environments that do not support it,
   * e.g., PhantomJS 1.x. Technically, we don't need this anymore
   * since native bind is now performant enough in most browsers.
   * But removing it would mean breaking code that was able to run in
   * PhantomJS 1.x, so this must be kept for backward compatibility.
   */
  
  /* istanbul ignore next */
  function polyfillBind (fn, ctx) {
    function boundFn (a) {
      var l = arguments.length;
      return l
        ? l > 1
          ? fn.apply(ctx, arguments)
          : fn.call(ctx, a)
        : fn.call(ctx)
    }
  
    boundFn._length = fn.length;
    return boundFn
  }
  
  function nativeBind (fn, ctx) {
    return fn.bind(ctx)
  }
  
  var bind = Function.prototype.bind
    ? nativeBind
    : polyfillBind;
  
  /**
   * Convert an Array-like object to a real Array.
   */
  function toArray (list, start) {
    start = start || 0;
    var i = list.length - start;
    var ret = new Array(i);
    while (i--) {
      ret[i] = list[i + start];
    }
    return ret
  }
  
  /**
   * Mix properties into target object.
   */
  function extend (to, _from) {
    for (var key in _from) {
      to[key] = _from[key];
    }
    return to
  }
  
  /**
   * Merge an Array of Objects into a single Object.
   */
  function toObject (arr) {
    var res = {};
    for (var i = 0; i < arr.length; i++) {
      if (arr[i]) {
        extend(res, arr[i]);
      }
    }
    return res
  }
  
  /* eslint-disable no-unused-vars */
  
  /**
   * Perform no operation.
   * Stubbing args to make Flow happy without leaving useless transpiled code
   * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/).
   */
  function noop (a, b, c) {}
  
  /**
   * Always return false.
   */
  var no = function (a, b, c) { return false; };
  
  /* eslint-enable no-unused-vars */
  
  /**
   * Return the same value.
   */
  var identity = function (_) { return _; };
  
  /**
   * Generate a string containing static keys from compiler modules.
   */
  function genStaticKeys (modules) {
    return modules.reduce(function (keys, m) {
      return keys.concat(m.staticKeys || [])
    }, []).join(',')
  }
  
  /**
   * Check if two values are loosely equal - that is,
   * if they are plain objects, do they have the same shape?
   */
  function looseEqual (a, b) {
    if (a === b) { return true }
    var isObjectA = isObject(a);
    var isObjectB = isObject(b);
    if (isObjectA && isObjectB) {
      try {
        var isArrayA = Array.isArray(a);
        var isArrayB = Array.isArray(b);
        if (isArrayA && isArrayB) {
          return a.length === b.length && a.every(function (e, i) {
            return looseEqual(e, b[i])
          })
        } else if (a instanceof Date && b instanceof Date) {
          return a.getTime() === b.getTime()
        } else if (!isArrayA && !isArrayB) {
          var keysA = Object.keys(a);
          var keysB = Object.keys(b);
          return keysA.length === keysB.length && keysA.every(function (key) {
            return looseEqual(a[key], b[key])
          })
        } else {
          /* istanbul ignore next */
          return false
        }
      } catch (e) {
        /* istanbul ignore next */
        return false
      }
    } else if (!isObjectA && !isObjectB) {
      return String(a) === String(b)
    } else {
      return false
    }
  }
  
  /**
   * Return the first index at which a loosely equal value can be
   * found in the array (if value is a plain object, the array must
   * contain an object of the same shape), or -1 if it is not present.
   */
  function looseIndexOf (arr, val) {
    for (var i = 0; i < arr.length; i++) {
      if (looseEqual(arr[i], val)) { return i }
    }
    return -1
  }
  
  /**
   * Ensure a function is called only once.
   */
  function once (fn) {
    var called = false;
    return function () {
      if (!called) {
        called = true;
        fn.apply(this, arguments);
      }
    }
  }
  
  var SSR_ATTR = 'data-server-rendered';
  
  var ASSET_TYPES = [
    'component',
    'directive',
    'filter'
  ];
  
  var LIFECYCLE_HOOKS = [
    'beforeCreate',
    'created',
    'beforeMount',
    'mounted',
    'beforeUpdate',
    'updated',
    'beforeDestroy',
    'destroyed',
    'activated',
    'deactivated',
    'errorCaptured',
    'serverPrefetch'
  ];
  
  /*  */
  
  
  
  var config = ({
    /**
     * Option merge strategies (used in core/util/options)
     */
    // $flow-disable-line
    optionMergeStrategies: Object.create(null),
  
    /**
     * Whether to suppress warnings.
     */
    silent: false,
  
    /**
     * Show production mode tip message on boot?
     */
    productionTip: "development" !== 'production',
  
    /**
     * Whether to enable devtools
     */
    devtools: "development" !== 'production',
  
    /**
     * Whether to record perf
     */
    performance: false,
  
    /**
     * Error handler for watcher errors
     */
    errorHandler: null,
  
    /**
     * Warn handler for watcher warns
     */
    warnHandler: null,
  
    /**
     * Ignore certain custom elements
     */
    ignoredElements: [],
  
    /**
     * Custom user key aliases for v-on
     */
    // $flow-disable-line
    keyCodes: Object.create(null),
  
    /**
     * Check if a tag is reserved so that it cannot be registered as a
     * component. This is platform-dependent and may be overwritten.
     */
    isReservedTag: no,
  
    /**
     * Check if an attribute is reserved so that it cannot be used as a component
     * prop. This is platform-dependent and may be overwritten.
     */
    isReservedAttr: no,
  
    /**
     * Check if a tag is an unknown element.
     * Platform-dependent.
     */
    isUnknownElement: no,
  
    /**
     * Get the namespace of an element
     */
    getTagNamespace: noop,
  
    /**
     * Parse the real tag name for the specific platform.
     */
    parsePlatformTagName: identity,
  
    /**
     * Check if an attribute must be bound using property, e.g. value
     * Platform-dependent.
     */
    mustUseProp: no,
  
    /**
     * Perform updates asynchronously. Intended to be used by Vue Test Utils
     * This will significantly reduce performance if set to false.
     */
    async: true,
  
    /**
     * Exposed for legacy reasons
     */
    _lifecycleHooks: LIFECYCLE_HOOKS
  });
  
  /*  */
  
  /**
   * unicode letters used for parsing html tags, component names and property paths.
   * using https://www.w3.org/TR/html53/semantics-scripting.html#potentialcustomelementname
   * skipping \u10000-\uEFFFF due to it freezing up PhantomJS
   */
  var unicodeRegExp = /a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD/;
  
  /**
   * Check if a string starts with $ or _
   */
  function isReserved (str) {
    var c = (str + '').charCodeAt(0);
    return c === 0x24 || c === 0x5F
  }
  
  /**
   * Define a property.
   */
  function def (obj, key, val, enumerable) {
    Object.defineProperty(obj, key, {
      value: val,
      enumerable: !!enumerable,
      writable: true,
      configurable: true
    });
  }
  
  /**
   * Parse simple path.
   */
  var bailRE = new RegExp(("[^" + (unicodeRegExp.source) + ".$_\\d]"));
  function parsePath (path) {
    if (bailRE.test(path)) {
      return
    }
    var segments = path.split('.');
    return function (obj) {
      for (var i = 0; i < segments.length; i++) {
        if (!obj) { return }
        obj = obj[segments[i]];
      }
      return obj
    }
  }
  
  /*  */
  
  // can we use __proto__?
  var hasProto = '__proto__' in {};
  
  // Browser environment sniffing
  var inBrowser = typeof window !== 'undefined';
  var inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
  var weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
  var UA = inBrowser && window.navigator.userAgent.toLowerCase();
  var isIE = UA && /msie|trident/.test(UA);
  var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
  var isEdge = UA && UA.indexOf('edge/') > 0;
  var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
  var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
  var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
  var isPhantomJS = UA && /phantomjs/.test(UA);
  var isFF = UA && UA.match(/firefox\/(\d+)/);
  
  // Firefox has a "watch" function on Object.prototype...
  var nativeWatch = ({}).watch;
  
  var supportsPassive = false;
  if (inBrowser) {
    try {
      var opts = {};
      Object.defineProperty(opts, 'passive', ({
        get: function get () {
          /* istanbul ignore next */
          supportsPassive = true;
        }
      })); // https://github.com/facebook/flow/issues/285
      window.addEventListener('test-passive', null, opts);
    } catch (e) {}
  }
  
  // this needs to be lazy-evaled because vue may be required before
  // vue-server-renderer can set VUE_ENV
  var _isServer;
  var isServerRendering = function () {
    if (_isServer === undefined) {
      /* istanbul ignore if */
      if (!inBrowser && !inWeex && typeof __webpack_require__.g !== 'undefined') {
        // detect presence of vue-server-renderer and avoid
        // Webpack shimming the process
        _isServer = __webpack_require__.g['process'] && __webpack_require__.g['process'].env.VUE_ENV === 'server';
      } else {
        _isServer = false;
      }
    }
    return _isServer
  };
  
  // detect devtools
  var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
  
  /* istanbul ignore next */
  function isNative (Ctor) {
    return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
  }
  
  var hasSymbol =
    typeof Symbol !== 'undefined' && isNative(Symbol) &&
    typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
  
  var _Set;
  /* istanbul ignore if */ // $flow-disable-line
  if (typeof Set !== 'undefined' && isNative(Set)) {
    // use native Set when available.
    _Set = Set;
  } else {
    // a non-standard Set polyfill that only works with primitive keys.
    _Set = /*@__PURE__*/(function () {
      function Set () {
        this.set = Object.create(null);
      }
      Set.prototype.has = function has (key) {
        return this.set[key] === true
      };
      Set.prototype.add = function add (key) {
        this.set[key] = true;
      };
      Set.prototype.clear = function clear () {
        this.set = Object.create(null);
      };
  
      return Set;
    }());
  }
  
  /*  */
  
  var warn = noop;
  var tip = noop;
  var generateComponentTrace = (noop); // work around flow check
  var formatComponentName = (noop);
  
  if (true) {
    var hasConsole = typeof console !== 'undefined';
    var classifyRE = /(?:^|[-_])(\w)/g;
    var classify = function (str) { return str
      .replace(classifyRE, function (c) { return c.toUpperCase(); })
      .replace(/[-_]/g, ''); };
  
    warn = function (msg, vm) {
      var trace = vm ? generateComponentTrace(vm) : '';
  
      if (config.warnHandler) {
        config.warnHandler.call(null, msg, vm, trace);
      } else if (hasConsole && (!config.silent)) {
        console.error(("[Vue warn]: " + msg + trace));
      }
    };
  
    tip = function (msg, vm) {
      if (hasConsole && (!config.silent)) {
        console.warn("[Vue tip]: " + msg + (
          vm ? generateComponentTrace(vm) : ''
        ));
      }
    };
  
    formatComponentName = function (vm, includeFile) {
      if (vm.$root === vm) {
        return '<Root>'
      }
      var options = typeof vm === 'function' && vm.cid != null
        ? vm.options
        : vm._isVue
          ? vm.$options || vm.constructor.options
          : vm;
      var name = options.name || options._componentTag;
      var file = options.__file;
      if (!name && file) {
        var match = file.match(/([^/\\]+)\.vue$/);
        name = match && match[1];
      }
  
      return (
        (name ? ("<" + (classify(name)) + ">") : "<Anonymous>") +
        (file && includeFile !== false ? (" at " + file) : '')
      )
    };
  
    var repeat = function (str, n) {
      var res = '';
      while (n) {
        if (n % 2 === 1) { res += str; }
        if (n > 1) { str += str; }
        n >>= 1;
      }
      return res
    };
  
    generateComponentTrace = function (vm) {
      if (vm._isVue && vm.$parent) {
        var tree = [];
        var currentRecursiveSequence = 0;
        while (vm) {
          if (tree.length > 0) {
            var last = tree[tree.length - 1];
            if (last.constructor === vm.constructor) {
              currentRecursiveSequence++;
              vm = vm.$parent;
              continue
            } else if (currentRecursiveSequence > 0) {
              tree[tree.length - 1] = [last, currentRecursiveSequence];
              currentRecursiveSequence = 0;
            }
          }
          tree.push(vm);
          vm = vm.$parent;
        }
        return '\n\nfound in\n\n' + tree
          .map(function (vm, i) { return ("" + (i === 0 ? '---> ' : repeat(' ', 5 + i * 2)) + (Array.isArray(vm)
              ? ((formatComponentName(vm[0])) + "... (" + (vm[1]) + " recursive calls)")
              : formatComponentName(vm))); })
          .join('\n')
      } else {
        return ("\n\n(found in " + (formatComponentName(vm)) + ")")
      }
    };
  }
  
  /*  */
  
  var uid = 0;
  
  /**
   * A dep is an observable that can have multiple
   * directives subscribing to it.
   */
  var Dep = function Dep () {
    this.id = uid++;
    this.subs = [];
  };
  
  Dep.prototype.addSub = function addSub (sub) {
    this.subs.push(sub);
  };
  
  Dep.prototype.removeSub = function removeSub (sub) {
    remove(this.subs, sub);
  };
  
  Dep.prototype.depend = function depend () {
    if (Dep.target) {
      Dep.target.addDep(this);
    }
  };
  
  Dep.prototype.notify = function notify () {
    // stabilize the subscriber list first
    var subs = this.subs.slice();
    if ( true && !config.async) {
      // subs aren't sorted in scheduler if not running async
      // we need to sort them now to make sure they fire in correct
      // order
      subs.sort(function (a, b) { return a.id - b.id; });
    }
    for (var i = 0, l = subs.length; i < l; i++) {
      subs[i].update();
    }
  };
  
  // The current target watcher being evaluated.
  // This is globally unique because only one watcher
  // can be evaluated at a time.
  Dep.target = null;
  var targetStack = [];
  
  function pushTarget (target) {
    targetStack.push(target);
    Dep.target = target;
  }
  
  function popTarget () {
    targetStack.pop();
    Dep.target = targetStack[targetStack.length - 1];
  }
  
  /*  */
  
  var VNode = function VNode (
    tag,
    data,
    children,
    text,
    elm,
    context,
    componentOptions,
    asyncFactory
  ) {
    this.tag = tag;
    this.data = data;
    this.children = children;
    this.text = text;
    this.elm = elm;
    this.ns = undefined;
    this.context = context;
    this.fnContext = undefined;
    this.fnOptions = undefined;
    this.fnScopeId = undefined;
    this.key = data && data.key;
    this.componentOptions = componentOptions;
    this.componentInstance = undefined;
    this.parent = undefined;
    this.raw = false;
    this.isStatic = false;
    this.isRootInsert = true;
    this.isComment = false;
    this.isCloned = false;
    this.isOnce = false;
    this.asyncFactory = asyncFactory;
    this.asyncMeta = undefined;
    this.isAsyncPlaceholder = false;
  };
  
  var prototypeAccessors = { child: { configurable: true } };
  
  // DEPRECATED: alias for componentInstance for backwards compat.
  /* istanbul ignore next */
  prototypeAccessors.child.get = function () {
    return this.componentInstance
  };
  
  Object.defineProperties( VNode.prototype, prototypeAccessors );
  
  var createEmptyVNode = function (text) {
    if ( text === void 0 ) text = '';
  
    var node = new VNode();
    node.text = text;
    node.isComment = true;
    return node
  };
  
  function createTextVNode (val) {
    return new VNode(undefined, undefined, undefined, String(val))
  }
  
  // optimized shallow clone
  // used for static nodes and slot nodes because they may be reused across
  // multiple renders, cloning them avoids errors when DOM manipulations rely
  // on their elm reference.
  function cloneVNode (vnode) {
    var cloned = new VNode(
      vnode.tag,
      vnode.data,
      // #7975
      // clone children array to avoid mutating original in case of cloning
      // a child.
      vnode.children && vnode.children.slice(),
      vnode.text,
      vnode.elm,
      vnode.context,
      vnode.componentOptions,
      vnode.asyncFactory
    );
    cloned.ns = vnode.ns;
    cloned.isStatic = vnode.isStatic;
    cloned.key = vnode.key;
    cloned.isComment = vnode.isComment;
    cloned.fnContext = vnode.fnContext;
    cloned.fnOptions = vnode.fnOptions;
    cloned.fnScopeId = vnode.fnScopeId;
    cloned.asyncMeta = vnode.asyncMeta;
    cloned.isCloned = true;
    return cloned
  }
  
  /*
   * not type checking this file because flow doesn't play well with
   * dynamically accessing methods on Array prototype
   */
  
  var arrayProto = Array.prototype;
  var arrayMethods = Object.create(arrayProto);
  
  var methodsToPatch = [
    'push',
    'pop',
    'shift',
    'unshift',
    'splice',
    'sort',
    'reverse'
  ];
  
  /**
   * Intercept mutating methods and emit events
   */
  methodsToPatch.forEach(function (method) {
    // cache original method
    var original = arrayProto[method];
    def(arrayMethods, method, function mutator () {
      var args = [], len = arguments.length;
      while ( len-- ) args[ len ] = arguments[ len ];
  
      var result = original.apply(this, args);
      var ob = this.__ob__;
      var inserted;
      switch (method) {
        case 'push':
        case 'unshift':
          inserted = args;
          break
        case 'splice':
          inserted = args.slice(2);
          break
      }
      if (inserted) { ob.observeArray(inserted); }
      // notify change
      ob.dep.notify();
      return result
    });
  });
  
  /*  */
  
  var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
  
  /**
   * In some cases we may want to disable observation inside a component's
   * update computation.
   */
  var shouldObserve = true;
  
  function toggleObserving (value) {
    shouldObserve = value;
  }
  
  /**
   * Observer class that is attached to each observed
   * object. Once attached, the observer converts the target
   * object's property keys into getter/setters that
   * collect dependencies and dispatch updates.
   */
  var Observer = function Observer (value) {
    this.value = value;
    this.dep = new Dep();
    this.vmCount = 0;
    def(value, '__ob__', this);
    if (Array.isArray(value)) {
      if (hasProto) {
        protoAugment(value, arrayMethods);
      } else {
        copyAugment(value, arrayMethods, arrayKeys);
      }
      this.observeArray(value);
    } else {
      this.walk(value);
    }
  };
  
  /**
   * Walk through all properties and convert them into
   * getter/setters. This method should only be called when
   * value type is Object.
   */
  Observer.prototype.walk = function walk (obj) {
    var keys = Object.keys(obj);
    for (var i = 0; i < keys.length; i++) {
      defineReactive$$1(obj, keys[i]);
    }
  };
  
  /**
   * Observe a list of Array items.
   */
  Observer.prototype.observeArray = function observeArray (items) {
    for (var i = 0, l = items.length; i < l; i++) {
      observe(items[i]);
    }
  };
  
  // helpers
  
  /**
   * Augment a target Object or Array by intercepting
   * the prototype chain using __proto__
   */
  function protoAugment (target, src) {
    /* eslint-disable no-proto */
    target.__proto__ = src;
    /* eslint-enable no-proto */
  }
  
  /**
   * Augment a target Object or Array by defining
   * hidden properties.
   */
  /* istanbul ignore next */
  function copyAugment (target, src, keys) {
    for (var i = 0, l = keys.length; i < l; i++) {
      var key = keys[i];
      def(target, key, src[key]);
    }
  }
  
  /**
   * Attempt to create an observer instance for a value,
   * returns the new observer if successfully observed,
   * or the existing observer if the value already has one.
   */
  function observe (value, asRootData) {
    if (!isObject(value) || value instanceof VNode) {
      return
    }
    var ob;
    if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
      ob = value.__ob__;
    } else if (
      shouldObserve &&
      !isServerRendering() &&
      (Array.isArray(value) || isPlainObject(value)) &&
      Object.isExtensible(value) &&
      !value._isVue
    ) {
      ob = new Observer(value);
    }
    if (asRootData && ob) {
      ob.vmCount++;
    }
    return ob
  }
  
  /**
   * Define a reactive property on an Object.
   */
  function defineReactive$$1 (
    obj,
    key,
    val,
    customSetter,
    shallow
  ) {
    var dep = new Dep();
  
    var property = Object.getOwnPropertyDescriptor(obj, key);
    if (property && property.configurable === false) {
      return
    }
  
    // cater for pre-defined getter/setters
    var getter = property && property.get;
    var setter = property && property.set;
    if ((!getter || setter) && arguments.length === 2) {
      val = obj[key];
    }
  
    var childOb = !shallow && observe(val);
    Object.defineProperty(obj, key, {
      enumerable: true,
      configurable: true,
      get: function reactiveGetter () {
        var value = getter ? getter.call(obj) : val;
        if (Dep.target) {
          dep.depend();
          if (childOb) {
            childOb.dep.depend();
            if (Array.isArray(value)) {
              dependArray(value);
            }
          }
        }
        return value
      },
      set: function reactiveSetter (newVal) {
        var value = getter ? getter.call(obj) : val;
        /* eslint-disable no-self-compare */
        if (newVal === value || (newVal !== newVal && value !== value)) {
          return
        }
        /* eslint-enable no-self-compare */
        if ( true && customSetter) {
          customSetter();
        }
        // #7981: for accessor properties without setter
        if (getter && !setter) { return }
        if (setter) {
          setter.call(obj, newVal);
        } else {
          val = newVal;
        }
        childOb = !shallow && observe(newVal);
        dep.notify();
      }
    });
  }
  
  /**
   * Set a property on an object. Adds the new property and
   * triggers change notification if the property doesn't
   * already exist.
   */
  function set (target, key, val) {
    if ( true &&
      (isUndef(target) || isPrimitive(target))
    ) {
      warn(("Cannot set reactive property on undefined, null, or primitive value: " + ((target))));
    }
    if (Array.isArray(target) && isValidArrayIndex(key)) {
      target.length = Math.max(target.length, key);
      target.splice(key, 1, val);
      return val
    }
    if (key in target && !(key in Object.prototype)) {
      target[key] = val;
      return val
    }
    var ob = (target).__ob__;
    if (target._isVue || (ob && ob.vmCount)) {
       true && warn(
        'Avoid adding reactive properties to a Vue instance or its root $data ' +
        'at runtime - declare it upfront in the data option.'
      );
      return val
    }
    if (!ob) {
      target[key] = val;
      return val
    }
    defineReactive$$1(ob.value, key, val);
    ob.dep.notify();
    return val
  }
  
  /**
   * Delete a property and trigger change if necessary.
   */
  function del (target, key) {
    if ( true &&
      (isUndef(target) || isPrimitive(target))
    ) {
      warn(("Cannot delete reactive property on undefined, null, or primitive value: " + ((target))));
    }
    if (Array.isArray(target) && isValidArrayIndex(key)) {
      target.splice(key, 1);
      return
    }
    var ob = (target).__ob__;
    if (target._isVue || (ob && ob.vmCount)) {
       true && warn(
        'Avoid deleting properties on a Vue instance or its root $data ' +
        '- just set it to null.'
      );
      return
    }
    if (!hasOwn(target, key)) {
      return
    }
    delete target[key];
    if (!ob) {
      return
    }
    ob.dep.notify();
  }
  
  /**
   * Collect dependencies on array elements when the array is touched, since
   * we cannot intercept array element access like property getters.
   */
  function dependArray (value) {
    for (var e = (void 0), i = 0, l = value.length; i < l; i++) {
      e = value[i];
      e && e.__ob__ && e.__ob__.dep.depend();
      if (Array.isArray(e)) {
        dependArray(e);
      }
    }
  }
  
  /*  */
  
  /**
   * Option overwriting strategies are functions that handle
   * how to merge a parent option value and a child option
   * value into the final value.
   */
  var strats = config.optionMergeStrategies;
  
  /**
   * Options with restrictions
   */
  if (true) {
    strats.el = strats.propsData = function (parent, child, vm, key) {
      if (!vm) {
        warn(
          "option \"" + key + "\" can only be used during instance " +
          'creation with the `new` keyword.'
        );
      }
      return defaultStrat(parent, child)
    };
  }
  
  /**
   * Helper that recursively merges two data objects together.
   */
  function mergeData (to, from) {
    if (!from) { return to }
    var key, toVal, fromVal;
  
    var keys = hasSymbol
      ? Reflect.ownKeys(from)
      : Object.keys(from);
  
    for (var i = 0; i < keys.length; i++) {
      key = keys[i];
      // in case the object is already observed...
      if (key === '__ob__') { continue }
      toVal = to[key];
      fromVal = from[key];
      if (!hasOwn(to, key)) {
        set(to, key, fromVal);
      } else if (
        toVal !== fromVal &&
        isPlainObject(toVal) &&
        isPlainObject(fromVal)
      ) {
        mergeData(toVal, fromVal);
      }
    }
    return to
  }
  
  /**
   * Data
   */
  function mergeDataOrFn (
    parentVal,
    childVal,
    vm
  ) {
    if (!vm) {
      // in a Vue.extend merge, both should be functions
      if (!childVal) {
        return parentVal
      }
      if (!parentVal) {
        return childVal
      }
      // when parentVal & childVal are both present,
      // we need to return a function that returns the
      // merged result of both functions... no need to
      // check if parentVal is a function here because
      // it has to be a function to pass previous merges.
      return function mergedDataFn () {
        return mergeData(
          typeof childVal === 'function' ? childVal.call(this, this) : childVal,
          typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal
        )
      }
    } else {
      return function mergedInstanceDataFn () {
        // instance merge
        var instanceData = typeof childVal === 'function'
          ? childVal.call(vm, vm)
          : childVal;
        var defaultData = typeof parentVal === 'function'
          ? parentVal.call(vm, vm)
          : parentVal;
        if (instanceData) {
          return mergeData(instanceData, defaultData)
        } else {
          return defaultData
        }
      }
    }
  }
  
  strats.data = function (
    parentVal,
    childVal,
    vm
  ) {
    if (!vm) {
      if (childVal && typeof childVal !== 'function') {
         true && warn(
          'The "data" option should be a function ' +
          'that returns a per-instance value in component ' +
          'definitions.',
          vm
        );
  
        return parentVal
      }
      return mergeDataOrFn(parentVal, childVal)
    }
  
    return mergeDataOrFn(parentVal, childVal, vm)
  };
  
  /**
   * Hooks and props are merged as arrays.
   */
  function mergeHook (
    parentVal,
    childVal
  ) {
    var res = childVal
      ? parentVal
        ? parentVal.concat(childVal)
        : Array.isArray(childVal)
          ? childVal
          : [childVal]
      : parentVal;
    return res
      ? dedupeHooks(res)
      : res
  }
  
  function dedupeHooks (hooks) {
    var res = [];
    for (var i = 0; i < hooks.length; i++) {
      if (res.indexOf(hooks[i]) === -1) {
        res.push(hooks[i]);
      }
    }
    return res
  }
  
  LIFECYCLE_HOOKS.forEach(function (hook) {
    strats[hook] = mergeHook;
  });
  
  /**
   * Assets
   *
   * When a vm is present (instance creation), we need to do
   * a three-way merge between constructor options, instance
   * options and parent options.
   */
  function mergeAssets (
    parentVal,
    childVal,
    vm,
    key
  ) {
    var res = Object.create(parentVal || null);
    if (childVal) {
       true && assertObjectType(key, childVal, vm);
      return extend(res, childVal)
    } else {
      return res
    }
  }
  
  ASSET_TYPES.forEach(function (type) {
    strats[type + 's'] = mergeAssets;
  });
  
  /**
   * Watchers.
   *
   * Watchers hashes should not overwrite one
   * another, so we merge them as arrays.
   */
  strats.watch = function (
    parentVal,
    childVal,
    vm,
    key
  ) {
    // work around Firefox's Object.prototype.watch...
    if (parentVal === nativeWatch) { parentVal = undefined; }
    if (childVal === nativeWatch) { childVal = undefined; }
    /* istanbul ignore if */
    if (!childVal) { return Object.create(parentVal || null) }
    if (true) {
      assertObjectType(key, childVal, vm);
    }
    if (!parentVal) { return childVal }
    var ret = {};
    extend(ret, parentVal);
    for (var key$1 in childVal) {
      var parent = ret[key$1];
      var child = childVal[key$1];
      if (parent && !Array.isArray(parent)) {
        parent = [parent];
      }
      ret[key$1] = parent
        ? parent.concat(child)
        : Array.isArray(child) ? child : [child];
    }
    return ret
  };
  
  /**
   * Other object hashes.
   */
  strats.props =
  strats.methods =
  strats.inject =
  strats.computed = function (
    parentVal,
    childVal,
    vm,
    key
  ) {
    if (childVal && "development" !== 'production') {
      assertObjectType(key, childVal, vm);
    }
    if (!parentVal) { return childVal }
    var ret = Object.create(null);
    extend(ret, parentVal);
    if (childVal) { extend(ret, childVal); }
    return ret
  };
  strats.provide = mergeDataOrFn;
  
  /**
   * Default strategy.
   */
  var defaultStrat = function (parentVal, childVal) {
    return childVal === undefined
      ? parentVal
      : childVal
  };
  
  /**
   * Validate component names
   */
  function checkComponents (options) {
    for (var key in options.components) {
      validateComponentName(key);
    }
  }
  
  function validateComponentName (name) {
    if (!new RegExp(("^[a-zA-Z][\\-\\.0-9_" + (unicodeRegExp.source) + "]*$")).test(name)) {
      warn(
        'Invalid component name: "' + name + '". Component names ' +
        'should conform to valid custom element name in html5 specification.'
      );
    }
    if (isBuiltInTag(name) || config.isReservedTag(name)) {
      warn(
        'Do not use built-in or reserved HTML elements as component ' +
        'id: ' + name
      );
    }
  }
  
  /**
   * Ensure all props option syntax are normalized into the
   * Object-based format.
   */
  function normalizeProps (options, vm) {
    var props = options.props;
    if (!props) { return }
    var res = {};
    var i, val, name;
    if (Array.isArray(props)) {
      i = props.length;
      while (i--) {
        val = props[i];
        if (typeof val === 'string') {
          name = camelize(val);
          res[name] = { type: null };
        } else if (true) {
          warn('props must be strings when using array syntax.');
        }
      }
    } else if (isPlainObject(props)) {
      for (var key in props) {
        val = props[key];
        name = camelize(key);
        res[name] = isPlainObject(val)
          ? val
          : { type: val };
      }
    } else if (true) {
      warn(
        "Invalid value for option \"props\": expected an Array or an Object, " +
        "but got " + (toRawType(props)) + ".",
        vm
      );
    }
    options.props = res;
  }
  
  /**
   * Normalize all injections into Object-based format
   */
  function normalizeInject (options, vm) {
    var inject = options.inject;
    if (!inject) { return }
    var normalized = options.inject = {};
    if (Array.isArray(inject)) {
      for (var i = 0; i < inject.length; i++) {
        normalized[inject[i]] = { from: inject[i] };
      }
    } else if (isPlainObject(inject)) {
      for (var key in inject) {
        var val = inject[key];
        normalized[key] = isPlainObject(val)
          ? extend({ from: key }, val)
          : { from: val };
      }
    } else if (true) {
      warn(
        "Invalid value for option \"inject\": expected an Array or an Object, " +
        "but got " + (toRawType(inject)) + ".",
        vm
      );
    }
  }
  
  /**
   * Normalize raw function directives into object format.
   */
  function normalizeDirectives (options) {
    var dirs = options.directives;
    if (dirs) {
      for (var key in dirs) {
        var def$$1 = dirs[key];
        if (typeof def$$1 === 'function') {
          dirs[key] = { bind: def$$1, update: def$$1 };
        }
      }
    }
  }
  
  function assertObjectType (name, value, vm) {
    if (!isPlainObject(value)) {
      warn(
        "Invalid value for option \"" + name + "\": expected an Object, " +
        "but got " + (toRawType(value)) + ".",
        vm
      );
    }
  }
  
  /**
   * Merge two option objects into a new one.
   * Core utility used in both instantiation and inheritance.
   */
  function mergeOptions (
    parent,
    child,
    vm
  ) {
    if (true) {
      checkComponents(child);
    }
  
    if (typeof child === 'function') {
      child = child.options;
    }
  
    normalizeProps(child, vm);
    normalizeInject(child, vm);
    normalizeDirectives(child);
  
    // Apply extends and mixins on the child options,
    // but only if it is a raw options object that isn't
    // the result of another mergeOptions call.
    // Only merged options has the _base property.
    if (!child._base) {
      if (child.extends) {
        parent = mergeOptions(parent, child.extends, vm);
      }
      if (child.mixins) {
        for (var i = 0, l = child.mixins.length; i < l; i++) {
          parent = mergeOptions(parent, child.mixins[i], vm);
        }
      }
    }
  
    var options = {};
    var key;
    for (key in parent) {
      mergeField(key);
    }
    for (key in child) {
      if (!hasOwn(parent, key)) {
        mergeField(key);
      }
    }
    function mergeField (key) {
      var strat = strats[key] || defaultStrat;
      options[key] = strat(parent[key], child[key], vm, key);
    }
    return options
  }
  
  /**
   * Resolve an asset.
   * This function is used because child instances need access
   * to assets defined in its ancestor chain.
   */
  function resolveAsset (
    options,
    type,
    id,
    warnMissing
  ) {
    /* istanbul ignore if */
    if (typeof id !== 'string') {
      return
    }
    var assets = options[type];
    // check local registration variations first
    if (hasOwn(assets, id)) { return assets[id] }
    var camelizedId = camelize(id);
    if (hasOwn(assets, camelizedId)) { return assets[camelizedId] }
    var PascalCaseId = capitalize(camelizedId);
    if (hasOwn(assets, PascalCaseId)) { return assets[PascalCaseId] }
    // fallback to prototype chain
    var res = assets[id] || assets[camelizedId] || assets[PascalCaseId];
    if ( true && warnMissing && !res) {
      warn(
        'Failed to resolve ' + type.slice(0, -1) + ': ' + id,
        options
      );
    }
    return res
  }
  
  /*  */
  
  
  
  function validateProp (
    key,
    propOptions,
    propsData,
    vm
  ) {
    var prop = propOptions[key];
    var absent = !hasOwn(propsData, key);
    var value = propsData[key];
    // boolean casting
    var booleanIndex = getTypeIndex(Boolean, prop.type);
    if (booleanIndex > -1) {
      if (absent && !hasOwn(prop, 'default')) {
        value = false;
      } else if (value === '' || value === hyphenate(key)) {
        // only cast empty string / same name to boolean if
        // boolean has higher priority
        var stringIndex = getTypeIndex(String, prop.type);
        if (stringIndex < 0 || booleanIndex < stringIndex) {
          value = true;
        }
      }
    }
    // check default value
    if (value === undefined) {
      value = getPropDefaultValue(vm, prop, key);
      // since the default value is a fresh copy,
      // make sure to observe it.
      var prevShouldObserve = shouldObserve;
      toggleObserving(true);
      observe(value);
      toggleObserving(prevShouldObserve);
    }
    if (
      true
    ) {
      assertProp(prop, key, value, vm, absent);
    }
    return value
  }
  
  /**
   * Get the default value of a prop.
   */
  function getPropDefaultValue (vm, prop, key) {
    // no default, return undefined
    if (!hasOwn(prop, 'default')) {
      return undefined
    }
    var def = prop.default;
    // warn against non-factory defaults for Object & Array
    if ( true && isObject(def)) {
      warn(
        'Invalid default value for prop "' + key + '": ' +
        'Props with type Object/Array must use a factory function ' +
        'to return the default value.',
        vm
      );
    }
    // the raw prop value was also undefined from previous render,
    // return previous default value to avoid unnecessary watcher trigger
    if (vm && vm.$options.propsData &&
      vm.$options.propsData[key] === undefined &&
      vm._props[key] !== undefined
    ) {
      return vm._props[key]
    }
    // call factory function for non-Function types
    // a value is Function if its prototype is function even across different execution context
    return typeof def === 'function' && getType(prop.type) !== 'Function'
      ? def.call(vm)
      : def
  }
  
  /**
   * Assert whether a prop is valid.
   */
  function assertProp (
    prop,
    name,
    value,
    vm,
    absent
  ) {
    if (prop.required && absent) {
      warn(
        'Missing required prop: "' + name + '"',
        vm
      );
      return
    }
    if (value == null && !prop.required) {
      return
    }
    var type = prop.type;
    var valid = !type || type === true;
    var expectedTypes = [];
    if (type) {
      if (!Array.isArray(type)) {
        type = [type];
      }
      for (var i = 0; i < type.length && !valid; i++) {
        var assertedType = assertType(value, type[i], vm);
        expectedTypes.push(assertedType.expectedType || '');
        valid = assertedType.valid;
      }
    }
  
    var haveExpectedTypes = expectedTypes.some(function (t) { return t; });
    if (!valid && haveExpectedTypes) {
      warn(
        getInvalidTypeMessage(name, value, expectedTypes),
        vm
      );
      return
    }
    var validator = prop.validator;
    if (validator) {
      if (!validator(value)) {
        warn(
          'Invalid prop: custom validator check failed for prop "' + name + '".',
          vm
        );
      }
    }
  }
  
  var simpleCheckRE = /^(String|Number|Boolean|Function|Symbol|BigInt)$/;
  
  function assertType (value, type, vm) {
    var valid;
    var expectedType = getType(type);
    if (simpleCheckRE.test(expectedType)) {
      var t = typeof value;
      valid = t === expectedType.toLowerCase();
      // for primitive wrapper objects
      if (!valid && t === 'object') {
        valid = value instanceof type;
      }
    } else if (expectedType === 'Object') {
      valid = isPlainObject(value);
    } else if (expectedType === 'Array') {
      valid = Array.isArray(value);
    } else {
      try {
        valid = value instanceof type;
      } catch (e) {
        warn('Invalid prop type: "' + String(type) + '" is not a constructor', vm);
        valid = false;
      }
    }
    return {
      valid: valid,
      expectedType: expectedType
    }
  }
  
  var functionTypeCheckRE = /^\s*function (\w+)/;
  
  /**
   * Use function string name to check built-in types,
   * because a simple equality check will fail when running
   * across different vms / iframes.
   */
  function getType (fn) {
    var match = fn && fn.toString().match(functionTypeCheckRE);
    return match ? match[1] : ''
  }
  
  function isSameType (a, b) {
    return getType(a) === getType(b)
  }
  
  function getTypeIndex (type, expectedTypes) {
    if (!Array.isArray(expectedTypes)) {
      return isSameType(expectedTypes, type) ? 0 : -1
    }
    for (var i = 0, len = expectedTypes.length; i < len; i++) {
      if (isSameType(expectedTypes[i], type)) {
        return i
      }
    }
    return -1
  }
  
  function getInvalidTypeMessage (name, value, expectedTypes) {
    var message = "Invalid prop: type check failed for prop \"" + name + "\"." +
      " Expected " + (expectedTypes.map(capitalize).join(', '));
    var expectedType = expectedTypes[0];
    var receivedType = toRawType(value);
    // check if we need to specify expected value
    if (
      expectedTypes.length === 1 &&
      isExplicable(expectedType) &&
      isExplicable(typeof value) &&
      !isBoolean(expectedType, receivedType)
    ) {
      message += " with value " + (styleValue(value, expectedType));
    }
    message += ", got " + receivedType + " ";
    // check if we need to specify received value
    if (isExplicable(receivedType)) {
      message += "with value " + (styleValue(value, receivedType)) + ".";
    }
    return message
  }
  
  function styleValue (value, type) {
    if (type === 'String') {
      return ("\"" + value + "\"")
    } else if (type === 'Number') {
      return ("" + (Number(value)))
    } else {
      return ("" + value)
    }
  }
  
  var EXPLICABLE_TYPES = ['string', 'number', 'boolean'];
  function isExplicable (value) {
    return EXPLICABLE_TYPES.some(function (elem) { return value.toLowerCase() === elem; })
  }
  
  function isBoolean () {
    var args = [], len = arguments.length;
    while ( len-- ) args[ len ] = arguments[ len ];
  
    return args.some(function (elem) { return elem.toLowerCase() === 'boolean'; })
  }
  
  /*  */
  
  function handleError (err, vm, info) {
    // Deactivate deps tracking while processing error handler to avoid possible infinite rendering.
    // See: https://github.com/vuejs/vuex/issues/1505
    pushTarget();
    try {
      if (vm) {
        var cur = vm;
        while ((cur = cur.$parent)) {
          var hooks = cur.$options.errorCaptured;
          if (hooks) {
            for (var i = 0; i < hooks.length; i++) {
              try {
                var capture = hooks[i].call(cur, err, vm, info) === false;
                if (capture) { return }
              } catch (e) {
                globalHandleError(e, cur, 'errorCaptured hook');
              }
            }
          }
        }
      }
      globalHandleError(err, vm, info);
    } finally {
      popTarget();
    }
  }
  
  function invokeWithErrorHandling (
    handler,
    context,
    args,
    vm,
    info
  ) {
    var res;
    try {
      res = args ? handler.apply(context, args) : handler.call(context);
      if (res && !res._isVue && isPromise(res) && !res._handled) {
        res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
        // issue #9511
        // avoid catch triggering multiple times when nested calls
        res._handled = true;
      }
    } catch (e) {
      handleError(e, vm, info);
    }
    return res
  }
  
  function globalHandleError (err, vm, info) {
    if (config.errorHandler) {
      try {
        return config.errorHandler.call(null, err, vm, info)
      } catch (e) {
        // if the user intentionally throws the original error in the handler,
        // do not log it twice
        if (e !== err) {
          logError(e, null, 'config.errorHandler');
        }
      }
    }
    logError(err, vm, info);
  }
  
  function logError (err, vm, info) {
    if (true) {
      warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
    }
    /* istanbul ignore else */
    if ((inBrowser || inWeex) && typeof console !== 'undefined') {
      console.error(err);
    } else {
      throw err
    }
  }
  
  /*  */
  
  var isUsingMicroTask = false;
  
  var callbacks = [];
  var pending = false;
  
  function flushCallbacks () {
    pending = false;
    var copies = callbacks.slice(0);
    callbacks.length = 0;
    for (var i = 0; i < copies.length; i++) {
      copies[i]();
    }
  }
  
  // Here we have async deferring wrappers using microtasks.
  // In 2.5 we used (macro) tasks (in combination with microtasks).
  // However, it has subtle problems when state is changed right before repaint
  // (e.g. #6813, out-in transitions).
  // Also, using (macro) tasks in event handler would cause some weird behaviors
  // that cannot be circumvented (e.g. #7109, #7153, #7546, #7834, #8109).
  // So we now use microtasks everywhere, again.
  // A major drawback of this tradeoff is that there are some scenarios
  // where microtasks have too high a priority and fire in between supposedly
  // sequential events (e.g. #4521, #6690, which have workarounds)
  // or even between bubbling of the same event (#6566).
  var timerFunc;
  
  // The nextTick behavior leverages the microtask queue, which can be accessed
  // via either native Promise.then or MutationObserver.
  // MutationObserver has wider support, however it is seriously bugged in
  // UIWebView in iOS >= 9.3.3 when triggered in touch event handlers. It
  // completely stops working after triggering a few times... so, if native
  // Promise is available, we will use it:
  /* istanbul ignore next, $flow-disable-line */
  if (typeof Promise !== 'undefined' && isNative(Promise)) {
    var p = Promise.resolve();
    timerFunc = function () {
      p.then(flushCallbacks);
      // In problematic UIWebViews, Promise.then doesn't completely break, but
      // it can get stuck in a weird state where callbacks are pushed into the
      // microtask queue but the queue isn't being flushed, until the browser
      // needs to do some other work, e.g. handle a timer. Therefore we can
      // "force" the microtask queue to be flushed by adding an empty timer.
      if (isIOS) { setTimeout(noop); }
    };
    isUsingMicroTask = true;
  } else if (!isIE && typeof MutationObserver !== 'undefined' && (
    isNative(MutationObserver) ||
    // PhantomJS and iOS 7.x
    MutationObserver.toString() === '[object MutationObserverConstructor]'
  )) {
    // Use MutationObserver where native Promise is not available,
    // e.g. PhantomJS, iOS7, Android 4.4
    // (#6466 MutationObserver is unreliable in IE11)
    var counter = 1;
    var observer = new MutationObserver(flushCallbacks);
    var textNode = document.createTextNode(String(counter));
    observer.observe(textNode, {
      characterData: true
    });
    timerFunc = function () {
      counter = (counter + 1) % 2;
      textNode.data = String(counter);
    };
    isUsingMicroTask = true;
  } else if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
    // Fallback to setImmediate.
    // Technically it leverages the (macro) task queue,
    // but it is still a better choice than setTimeout.
    timerFunc = function () {
      setImmediate(flushCallbacks);
    };
  } else {
    // Fallback to setTimeout.
    timerFunc = function () {
      setTimeout(flushCallbacks, 0);
    };
  }
  
  function nextTick (cb, ctx) {
    var _resolve;
    callbacks.push(function () {
      if (cb) {
        try {
          cb.call(ctx);
        } catch (e) {
          handleError(e, ctx, 'nextTick');
        }
      } else if (_resolve) {
        _resolve(ctx);
      }
    });
    if (!pending) {
      pending = true;
      timerFunc();
    }
    // $flow-disable-line
    if (!cb && typeof Promise !== 'undefined') {
      return new Promise(function (resolve) {
        _resolve = resolve;
      })
    }
  }
  
  /*  */
  
  var mark;
  var measure;
  
  if (true) {
    var perf = inBrowser && window.performance;
    /* istanbul ignore if */
    if (
      perf &&
      perf.mark &&
      perf.measure &&
      perf.clearMarks &&
      perf.clearMeasures
    ) {
      mark = function (tag) { return perf.mark(tag); };
      measure = function (name, startTag, endTag) {
        perf.measure(name, startTag, endTag);
        perf.clearMarks(startTag);
        perf.clearMarks(endTag);
        // perf.clearMeasures(name)
      };
    }
  }
  
  /* not type checking this file because flow doesn't play well with Proxy */
  
  var initProxy;
  
  if (true) {
    var allowedGlobals = makeMap(
      'Infinity,undefined,NaN,isFinite,isNaN,' +
      'parseFloat,parseInt,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,' +
      'Math,Number,Date,Array,Object,Boolean,String,RegExp,Map,Set,JSON,Intl,BigInt,' +
      'require' // for Webpack/Browserify
    );
  
    var warnNonPresent = function (target, key) {
      warn(
        "Property or method \"" + key + "\" is not defined on the instance but " +
        'referenced during render. Make sure that this property is reactive, ' +
        'either in the data option, or for class-based components, by ' +
        'initializing the property. ' +
        'See: https://vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.',
        target
      );
    };
  
    var warnReservedPrefix = function (target, key) {
      warn(
        "Property \"" + key + "\" must be accessed with \"$data." + key + "\" because " +
        'properties starting with "$" or "_" are not proxied in the Vue instance to ' +
        'prevent conflicts with Vue internals. ' +
        'See: https://vuejs.org/v2/api/#data',
        target
      );
    };
  
    var hasProxy =
      typeof Proxy !== 'undefined' && isNative(Proxy);
  
    if (hasProxy) {
      var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
      config.keyCodes = new Proxy(config.keyCodes, {
        set: function set (target, key, value) {
          if (isBuiltInModifier(key)) {
            warn(("Avoid overwriting built-in modifier in config.keyCodes: ." + key));
            return false
          } else {
            target[key] = value;
            return true
          }
        }
      });
    }
  
    var hasHandler = {
      has: function has (target, key) {
        var has = key in target;
        var isAllowed = allowedGlobals(key) ||
          (typeof key === 'string' && key.charAt(0) === '_' && !(key in target.$data));
        if (!has && !isAllowed) {
          if (key in target.$data) { warnReservedPrefix(target, key); }
          else { warnNonPresent(target, key); }
        }
        return has || !isAllowed
      }
    };
  
    var getHandler = {
      get: function get (target, key) {
        if (typeof key === 'string' && !(key in target)) {
          if (key in target.$data) { warnReservedPrefix(target, key); }
          else { warnNonPresent(target, key); }
        }
        return target[key]
      }
    };
  
    initProxy = function initProxy (vm) {
      if (hasProxy) {
        // determine which proxy handler to use
        var options = vm.$options;
        var handlers = options.render && options.render._withStripped
          ? getHandler
          : hasHandler;
        vm._renderProxy = new Proxy(vm, handlers);
      } else {
        vm._renderProxy = vm;
      }
    };
  }
  
  /*  */
  
  var seenObjects = new _Set();
  
  /**
   * Recursively traverse an object to evoke all converted
   * getters, so that every nested property inside the object
   * is collected as a "deep" dependency.
   */
  function traverse (val) {
    _traverse(val, seenObjects);
    seenObjects.clear();
  }
  
  function _traverse (val, seen) {
    var i, keys;
    var isA = Array.isArray(val);
    if ((!isA && !isObject(val)) || Object.isFrozen(val) || val instanceof VNode) {
      return
    }
    if (val.__ob__) {
      var depId = val.__ob__.dep.id;
      if (seen.has(depId)) {
        return
      }
      seen.add(depId);
    }
    if (isA) {
      i = val.length;
      while (i--) { _traverse(val[i], seen); }
    } else {
      keys = Object.keys(val);
      i = keys.length;
      while (i--) { _traverse(val[keys[i]], seen); }
    }
  }
  
  /*  */
  
  var normalizeEvent = cached(function (name) {
    var passive = name.charAt(0) === '&';
    name = passive ? name.slice(1) : name;
    var once$$1 = name.charAt(0) === '~'; // Prefixed last, checked first
    name = once$$1 ? name.slice(1) : name;
    var capture = name.charAt(0) === '!';
    name = capture ? name.slice(1) : name;
    return {
      name: name,
      once: once$$1,
      capture: capture,
      passive: passive
    }
  });
  
  function createFnInvoker (fns, vm) {
    function invoker () {
      var arguments$1 = arguments;
  
      var fns = invoker.fns;
      if (Array.isArray(fns)) {
        var cloned = fns.slice();
        for (var i = 0; i < cloned.length; i++) {
          invokeWithErrorHandling(cloned[i], null, arguments$1, vm, "v-on handler");
        }
      } else {
        // return handler return value for single handlers
        return invokeWithErrorHandling(fns, null, arguments, vm, "v-on handler")
      }
    }
    invoker.fns = fns;
    return invoker
  }
  
  function updateListeners (
    on,
    oldOn,
    add,
    remove$$1,
    createOnceHandler,
    vm
  ) {
    var name, def$$1, cur, old, event;
    for (name in on) {
      def$$1 = cur = on[name];
      old = oldOn[name];
      event = normalizeEvent(name);
      if (isUndef(cur)) {
         true && warn(
          "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
          vm
        );
      } else if (isUndef(old)) {
        if (isUndef(cur.fns)) {
          cur = on[name] = createFnInvoker(cur, vm);
        }
        if (isTrue(event.once)) {
          cur = on[name] = createOnceHandler(event.name, cur, event.capture);
        }
        add(event.name, cur, event.capture, event.passive, event.params);
      } else if (cur !== old) {
        old.fns = cur;
        on[name] = old;
      }
    }
    for (name in oldOn) {
      if (isUndef(on[name])) {
        event = normalizeEvent(name);
        remove$$1(event.name, oldOn[name], event.capture);
      }
    }
  }
  
  /*  */
  
  function mergeVNodeHook (def, hookKey, hook) {
    if (def instanceof VNode) {
      def = def.data.hook || (def.data.hook = {});
    }
    var invoker;
    var oldHook = def[hookKey];
  
    function wrappedHook () {
      hook.apply(this, arguments);
      // important: remove merged hook to ensure it's called only once
      // and prevent memory leak
      remove(invoker.fns, wrappedHook);
    }
  
    if (isUndef(oldHook)) {
      // no existing hook
      invoker = createFnInvoker([wrappedHook]);
    } else {
      /* istanbul ignore if */
      if (isDef(oldHook.fns) && isTrue(oldHook.merged)) {
        // already a merged invoker
        invoker = oldHook;
        invoker.fns.push(wrappedHook);
      } else {
        // existing plain hook
        invoker = createFnInvoker([oldHook, wrappedHook]);
      }
    }
  
    invoker.merged = true;
    def[hookKey] = invoker;
  }
  
  /*  */
  
  function extractPropsFromVNodeData (
    data,
    Ctor,
    tag
  ) {
    // we are only extracting raw values here.
    // validation and default values are handled in the child
    // component itself.
    var propOptions = Ctor.options.props;
    if (isUndef(propOptions)) {
      return
    }
    var res = {};
    var attrs = data.attrs;
    var props = data.props;
    if (isDef(attrs) || isDef(props)) {
      for (var key in propOptions) {
        var altKey = hyphenate(key);
        if (true) {
          var keyInLowerCase = key.toLowerCase();
          if (
            key !== keyInLowerCase &&
            attrs && hasOwn(attrs, keyInLowerCase)
          ) {
            tip(
              "Prop \"" + keyInLowerCase + "\" is passed to component " +
              (formatComponentName(tag || Ctor)) + ", but the declared prop name is" +
              " \"" + key + "\". " +
              "Note that HTML attributes are case-insensitive and camelCased " +
              "props need to use their kebab-case equivalents when using in-DOM " +
              "templates. You should probably use \"" + altKey + "\" instead of \"" + key + "\"."
            );
          }
        }
        checkProp(res, props, key, altKey, true) ||
        checkProp(res, attrs, key, altKey, false);
      }
    }
    return res
  }
  
  function checkProp (
    res,
    hash,
    key,
    altKey,
    preserve
  ) {
    if (isDef(hash)) {
      if (hasOwn(hash, key)) {
        res[key] = hash[key];
        if (!preserve) {
          delete hash[key];
        }
        return true
      } else if (hasOwn(hash, altKey)) {
        res[key] = hash[altKey];
        if (!preserve) {
          delete hash[altKey];
        }
        return true
      }
    }
    return false
  }
  
  /*  */
  
  // The template compiler attempts to minimize the need for normalization by
  // statically analyzing the template at compile time.
  //
  // For plain HTML markup, normalization can be completely skipped because the
  // generated render function is guaranteed to return Array<VNode>. There are
  // two cases where extra normalization is needed:
  
  // 1. When the children contains components - because a functional component
  // may return an Array instead of a single root. In this case, just a simple
  // normalization is needed - if any child is an Array, we flatten the whole
  // thing with Array.prototype.concat. It is guaranteed to be only 1-level deep
  // because functional components already normalize their own children.
  function simpleNormalizeChildren (children) {
    for (var i = 0; i < children.length; i++) {
      if (Array.isArray(children[i])) {
        return Array.prototype.concat.apply([], children)
      }
    }
    return children
  }
  
  // 2. When the children contains constructs that always generated nested Arrays,
  // e.g. <template>, <slot>, v-for, or when the children is provided by user
  // with hand-written render functions / JSX. In such cases a full normalization
  // is needed to cater to all possible types of children values.
  function normalizeChildren (children) {
    return isPrimitive(children)
      ? [createTextVNode(children)]
      : Array.isArray(children)
        ? normalizeArrayChildren(children)
        : undefined
  }
  
  function isTextNode (node) {
    return isDef(node) && isDef(node.text) && isFalse(node.isComment)
  }
  
  function normalizeArrayChildren (children, nestedIndex) {
    var res = [];
    var i, c, lastIndex, last;
    for (i = 0; i < children.length; i++) {
      c = children[i];
      if (isUndef(c) || typeof c === 'boolean') { continue }
      lastIndex = res.length - 1;
      last = res[lastIndex];
      //  nested
      if (Array.isArray(c)) {
        if (c.length > 0) {
          c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
          // merge adjacent text nodes
          if (isTextNode(c[0]) && isTextNode(last)) {
            res[lastIndex] = createTextVNode(last.text + (c[0]).text);
            c.shift();
          }
          res.push.apply(res, c);
        }
      } else if (isPrimitive(c)) {
        if (isTextNode(last)) {
          // merge adjacent text nodes
          // this is necessary for SSR hydration because text nodes are
          // essentially merged when rendered to HTML strings
          res[lastIndex] = createTextVNode(last.text + c);
        } else if (c !== '') {
          // convert primitive to vnode
          res.push(createTextVNode(c));
        }
      } else {
        if (isTextNode(c) && isTextNode(last)) {
          // merge adjacent text nodes
          res[lastIndex] = createTextVNode(last.text + c.text);
        } else {
          // default key for nested array children (likely generated by v-for)
          if (isTrue(children._isVList) &&
            isDef(c.tag) &&
            isUndef(c.key) &&
            isDef(nestedIndex)) {
            c.key = "__vlist" + nestedIndex + "_" + i + "__";
          }
          res.push(c);
        }
      }
    }
    return res
  }
  
  /*  */
  
  function initProvide (vm) {
    var provide = vm.$options.provide;
    if (provide) {
      vm._provided = typeof provide === 'function'
        ? provide.call(vm)
        : provide;
    }
  }
  
  function initInjections (vm) {
    var result = resolveInject(vm.$options.inject, vm);
    if (result) {
      toggleObserving(false);
      Object.keys(result).forEach(function (key) {
        /* istanbul ignore else */
        if (true) {
          defineReactive$$1(vm, key, result[key], function () {
            warn(
              "Avoid mutating an injected value directly since the changes will be " +
              "overwritten whenever the provided component re-renders. " +
              "injection being mutated: \"" + key + "\"",
              vm
            );
          });
        } else {}
      });
      toggleObserving(true);
    }
  }
  
  function resolveInject (inject, vm) {
    if (inject) {
      // inject is :any because flow is not smart enough to figure out cached
      var result = Object.create(null);
      var keys = hasSymbol
        ? Reflect.ownKeys(inject)
        : Object.keys(inject);
  
      for (var i = 0; i < keys.length; i++) {
        var key = keys[i];
        // #6574 in case the inject object is observed...
        if (key === '__ob__') { continue }
        var provideKey = inject[key].from;
        var source = vm;
        while (source) {
          if (source._provided && hasOwn(source._provided, provideKey)) {
            result[key] = source._provided[provideKey];
            break
          }
          source = source.$parent;
        }
        if (!source) {
          if ('default' in inject[key]) {
            var provideDefault = inject[key].default;
            result[key] = typeof provideDefault === 'function'
              ? provideDefault.call(vm)
              : provideDefault;
          } else if (true) {
            warn(("Injection \"" + key + "\" not found"), vm);
          }
        }
      }
      return result
    }
  }
  
  /*  */
  
  
  
  /**
   * Runtime helper for resolving raw children VNodes into a slot object.
   */
  function resolveSlots (
    children,
    context
  ) {
    if (!children || !children.length) {
      return {}
    }
    var slots = {};
    for (var i = 0, l = children.length; i < l; i++) {
      var child = children[i];
      var data = child.data;
      // remove slot attribute if the node is resolved as a Vue slot node
      if (data && data.attrs && data.attrs.slot) {
        delete data.attrs.slot;
      }
      // named slots should only be respected if the vnode was rendered in the
      // same context.
      if ((child.context === context || child.fnContext === context) &&
        data && data.slot != null
      ) {
        var name = data.slot;
        var slot = (slots[name] || (slots[name] = []));
        if (child.tag === 'template') {
          slot.push.apply(slot, child.children || []);
        } else {
          slot.push(child);
        }
      } else {
        (slots.default || (slots.default = [])).push(child);
      }
    }
    // ignore slots that contains only whitespace
    for (var name$1 in slots) {
      if (slots[name$1].every(isWhitespace)) {
        delete slots[name$1];
      }
    }
    return slots
  }
  
  function isWhitespace (node) {
    return (node.isComment && !node.asyncFactory) || node.text === ' '
  }
  
  /*  */
  
  function isAsyncPlaceholder (node) {
    return node.isComment && node.asyncFactory
  }
  
  /*  */
  
  function normalizeScopedSlots (
    slots,
    normalSlots,
    prevSlots
  ) {
    var res;
    var hasNormalSlots = Object.keys(normalSlots).length > 0;
    var isStable = slots ? !!slots.$stable : !hasNormalSlots;
    var key = slots && slots.$key;
    if (!slots) {
      res = {};
    } else if (slots._normalized) {
      // fast path 1: child component re-render only, parent did not change
      return slots._normalized
    } else if (
      isStable &&
      prevSlots &&
      prevSlots !== emptyObject &&
      key === prevSlots.$key &&
      !hasNormalSlots &&
      !prevSlots.$hasNormal
    ) {
      // fast path 2: stable scoped slots w/ no normal slots to proxy,
      // only need to normalize once
      return prevSlots
    } else {
      res = {};
      for (var key$1 in slots) {
        if (slots[key$1] && key$1[0] !== '$') {
          res[key$1] = normalizeScopedSlot(normalSlots, key$1, slots[key$1]);
        }
      }
    }
    // expose normal slots on scopedSlots
    for (var key$2 in normalSlots) {
      if (!(key$2 in res)) {
        res[key$2] = proxyNormalSlot(normalSlots, key$2);
      }
    }
    // avoriaz seems to mock a non-extensible $scopedSlots object
    // and when that is passed down this would cause an error
    if (slots && Object.isExtensible(slots)) {
      (slots)._normalized = res;
    }
    def(res, '$stable', isStable);
    def(res, '$key', key);
    def(res, '$hasNormal', hasNormalSlots);
    return res
  }
  
  function normalizeScopedSlot(normalSlots, key, fn) {
    var normalized = function () {
      var res = arguments.length ? fn.apply(null, arguments) : fn({});
      res = res && typeof res === 'object' && !Array.isArray(res)
        ? [res] // single vnode
        : normalizeChildren(res);
      var vnode = res && res[0];
      return res && (
        !vnode ||
        (res.length === 1 && vnode.isComment && !isAsyncPlaceholder(vnode)) // #9658, #10391
      ) ? undefined
        : res
    };
    // this is a slot using the new v-slot syntax without scope. although it is
    // compiled as a scoped slot, render fn users would expect it to be present
    // on this.$slots because the usage is semantically a normal slot.
    if (fn.proxy) {
      Object.defineProperty(normalSlots, key, {
        get: normalized,
        enumerable: true,
        configurable: true
      });
    }
    return normalized
  }
  
  function proxyNormalSlot(slots, key) {
    return function () { return slots[key]; }
  }
  
  /*  */
  
  /**
   * Runtime helper for rendering v-for lists.
   */
  function renderList (
    val,
    render
  ) {
    var ret, i, l, keys, key;
    if (Array.isArray(val) || typeof val === 'string') {
      ret = new Array(val.length);
      for (i = 0, l = val.length; i < l; i++) {
        ret[i] = render(val[i], i);
      }
    } else if (typeof val === 'number') {
      ret = new Array(val);
      for (i = 0; i < val; i++) {
        ret[i] = render(i + 1, i);
      }
    } else if (isObject(val)) {
      if (hasSymbol && val[Symbol.iterator]) {
        ret = [];
        var iterator = val[Symbol.iterator]();
        var result = iterator.next();
        while (!result.done) {
          ret.push(render(result.value, ret.length));
          result = iterator.next();
        }
      } else {
        keys = Object.keys(val);
        ret = new Array(keys.length);
        for (i = 0, l = keys.length; i < l; i++) {
          key = keys[i];
          ret[i] = render(val[key], key, i);
        }
      }
    }
    if (!isDef(ret)) {
      ret = [];
    }
    (ret)._isVList = true;
    return ret
  }
  
  /*  */
  
  /**
   * Runtime helper for rendering <slot>
   */
  function renderSlot (
    name,
    fallbackRender,
    props,
    bindObject
  ) {
    var scopedSlotFn = this.$scopedSlots[name];
    var nodes;
    if (scopedSlotFn) {
      // scoped slot
      props = props || {};
      if (bindObject) {
        if ( true && !isObject(bindObject)) {
          warn('slot v-bind without argument expects an Object', this);
        }
        props = extend(extend({}, bindObject), props);
      }
      nodes =
        scopedSlotFn(props) ||
        (typeof fallbackRender === 'function' ? fallbackRender() : fallbackRender);
    } else {
      nodes =
        this.$slots[name] ||
        (typeof fallbackRender === 'function' ? fallbackRender() : fallbackRender);
    }
  
    var target = props && props.slot;
    if (target) {
      return this.$createElement('template', { slot: target }, nodes)
    } else {
      return nodes
    }
  }
  
  /*  */
  
  /**
   * Runtime helper for resolving filters
   */
  function resolveFilter (id) {
    return resolveAsset(this.$options, 'filters', id, true) || identity
  }
  
  /*  */
  
  function isKeyNotMatch (expect, actual) {
    if (Array.isArray(expect)) {
      return expect.indexOf(actual) === -1
    } else {
      return expect !== actual
    }
  }
  
  /**
   * Runtime helper for checking keyCodes from config.
   * exposed as Vue.prototype._k
   * passing in eventKeyName as last argument separately for backwards compat
   */
  function checkKeyCodes (
    eventKeyCode,
    key,
    builtInKeyCode,
    eventKeyName,
    builtInKeyName
  ) {
    var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
    if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
      return isKeyNotMatch(builtInKeyName, eventKeyName)
    } else if (mappedKeyCode) {
      return isKeyNotMatch(mappedKeyCode, eventKeyCode)
    } else if (eventKeyName) {
      return hyphenate(eventKeyName) !== key
    }
    return eventKeyCode === undefined
  }
  
  /*  */
  
  /**
   * Runtime helper for merging v-bind="object" into a VNode's data.
   */
  function bindObjectProps (
    data,
    tag,
    value,
    asProp,
    isSync
  ) {
    if (value) {
      if (!isObject(value)) {
         true && warn(
          'v-bind without argument expects an Object or Array value',
          this
        );
      } else {
        if (Array.isArray(value)) {
          value = toObject(value);
        }
        var hash;
        var loop = function ( key ) {
          if (
            key === 'class' ||
            key === 'style' ||
            isReservedAttribute(key)
          ) {
            hash = data;
          } else {
            var type = data.attrs && data.attrs.type;
            hash = asProp || config.mustUseProp(tag, type, key)
              ? data.domProps || (data.domProps = {})
              : data.attrs || (data.attrs = {});
          }
          var camelizedKey = camelize(key);
          var hyphenatedKey = hyphenate(key);
          if (!(camelizedKey in hash) && !(hyphenatedKey in hash)) {
            hash[key] = value[key];
  
            if (isSync) {
              var on = data.on || (data.on = {});
              on[("update:" + key)] = function ($event) {
                value[key] = $event;
              };
            }
          }
        };
  
        for (var key in value) loop( key );
      }
    }
    return data
  }
  
  /*  */
  
  /**
   * Runtime helper for rendering static trees.
   */
  function renderStatic (
    index,
    isInFor
  ) {
    var cached = this._staticTrees || (this._staticTrees = []);
    var tree = cached[index];
    // if has already-rendered static tree and not inside v-for,
    // we can reuse the same tree.
    if (tree && !isInFor) {
      return tree
    }
    // otherwise, render a fresh tree.
    tree = cached[index] = this.$options.staticRenderFns[index].call(
      this._renderProxy,
      null,
      this // for render fns generated for functional component templates
    );
    markStatic(tree, ("__static__" + index), false);
    return tree
  }
  
  /**
   * Runtime helper for v-once.
   * Effectively it means marking the node as static with a unique key.
   */
  function markOnce (
    tree,
    index,
    key
  ) {
    markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
    return tree
  }
  
  function markStatic (
    tree,
    key,
    isOnce
  ) {
    if (Array.isArray(tree)) {
      for (var i = 0; i < tree.length; i++) {
        if (tree[i] && typeof tree[i] !== 'string') {
          markStaticNode(tree[i], (key + "_" + i), isOnce);
        }
      }
    } else {
      markStaticNode(tree, key, isOnce);
    }
  }
  
  function markStaticNode (node, key, isOnce) {
    node.isStatic = true;
    node.key = key;
    node.isOnce = isOnce;
  }
  
  /*  */
  
  function bindObjectListeners (data, value) {
    if (value) {
      if (!isPlainObject(value)) {
         true && warn(
          'v-on without argument expects an Object value',
          this
        );
      } else {
        var on = data.on = data.on ? extend({}, data.on) : {};
        for (var key in value) {
          var existing = on[key];
          var ours = value[key];
          on[key] = existing ? [].concat(existing, ours) : ours;
        }
      }
    }
    return data
  }
  
  /*  */
  
  function resolveScopedSlots (
    fns, // see flow/vnode
    res,
    // the following are added in 2.6
    hasDynamicKeys,
    contentHashKey
  ) {
    res = res || { $stable: !hasDynamicKeys };
    for (var i = 0; i < fns.length; i++) {
      var slot = fns[i];
      if (Array.isArray(slot)) {
        resolveScopedSlots(slot, res, hasDynamicKeys);
      } else if (slot) {
        // marker for reverse proxying v-slot without scope on this.$slots
        if (slot.proxy) {
          slot.fn.proxy = true;
        }
        res[slot.key] = slot.fn;
      }
    }
    if (contentHashKey) {
      (res).$key = contentHashKey;
    }
    return res
  }
  
  /*  */
  
  function bindDynamicKeys (baseObj, values) {
    for (var i = 0; i < values.length; i += 2) {
      var key = values[i];
      if (typeof key === 'string' && key) {
        baseObj[values[i]] = values[i + 1];
      } else if ( true && key !== '' && key !== null) {
        // null is a special value for explicitly removing a binding
        warn(
          ("Invalid value for dynamic directive argument (expected string or null): " + key),
          this
        );
      }
    }
    return baseObj
  }
  
  // helper to dynamically append modifier runtime markers to event names.
  // ensure only append when value is already string, otherwise it will be cast
  // to string and cause the type check to miss.
  function prependModifier (value, symbol) {
    return typeof value === 'string' ? symbol + value : value
  }
  
  /*  */
  
  function installRenderHelpers (target) {
    target._o = markOnce;
    target._n = toNumber;
    target._s = toString;
    target._l = renderList;
    target._t = renderSlot;
    target._q = looseEqual;
    target._i = looseIndexOf;
    target._m = renderStatic;
    target._f = resolveFilter;
    target._k = checkKeyCodes;
    target._b = bindObjectProps;
    target._v = createTextVNode;
    target._e = createEmptyVNode;
    target._u = resolveScopedSlots;
    target._g = bindObjectListeners;
    target._d = bindDynamicKeys;
    target._p = prependModifier;
  }
  
  /*  */
  
  function FunctionalRenderContext (
    data,
    props,
    children,
    parent,
    Ctor
  ) {
    var this$1 = this;
  
    var options = Ctor.options;
    // ensure the createElement function in functional components
    // gets a unique context - this is necessary for correct named slot check
    var contextVm;
    if (hasOwn(parent, '_uid')) {
      contextVm = Object.create(parent);
      // $flow-disable-line
      contextVm._original = parent;
    } else {
      // the context vm passed in is a functional context as well.
      // in this case we want to make sure we are able to get a hold to the
      // real context instance.
      contextVm = parent;
      // $flow-disable-line
      parent = parent._original;
    }
    var isCompiled = isTrue(options._compiled);
    var needNormalization = !isCompiled;
  
    this.data = data;
    this.props = props;
    this.children = children;
    this.parent = parent;
    this.listeners = data.on || emptyObject;
    this.injections = resolveInject(options.inject, parent);
    this.slots = function () {
      if (!this$1.$slots) {
        normalizeScopedSlots(
          data.scopedSlots,
          this$1.$slots = resolveSlots(children, parent)
        );
      }
      return this$1.$slots
    };
  
    Object.defineProperty(this, 'scopedSlots', ({
      enumerable: true,
      get: function get () {
        return normalizeScopedSlots(data.scopedSlots, this.slots())
      }
    }));
  
    // support for compiled functional template
    if (isCompiled) {
      // exposing $options for renderStatic()
      this.$options = options;
      // pre-resolve slots for renderSlot()
      this.$slots = this.slots();
      this.$scopedSlots = normalizeScopedSlots(data.scopedSlots, this.$slots);
    }
  
    if (options._scopeId) {
      this._c = function (a, b, c, d) {
        var vnode = createElement(contextVm, a, b, c, d, needNormalization);
        if (vnode && !Array.isArray(vnode)) {
          vnode.fnScopeId = options._scopeId;
          vnode.fnContext = parent;
        }
        return vnode
      };
    } else {
      this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };
    }
  }
  
  installRenderHelpers(FunctionalRenderContext.prototype);
  
  function createFunctionalComponent (
    Ctor,
    propsData,
    data,
    contextVm,
    children
  ) {
    var options = Ctor.options;
    var props = {};
    var propOptions = options.props;
    if (isDef(propOptions)) {
      for (var key in propOptions) {
        props[key] = validateProp(key, propOptions, propsData || emptyObject);
      }
    } else {
      if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
      if (isDef(data.props)) { mergeProps(props, data.props); }
    }
  
    var renderContext = new FunctionalRenderContext(
      data,
      props,
      children,
      contextVm,
      Ctor
    );
  
    var vnode = options.render.call(null, renderContext._c, renderContext);
  
    if (vnode instanceof VNode) {
      return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
    } else if (Array.isArray(vnode)) {
      var vnodes = normalizeChildren(vnode) || [];
      var res = new Array(vnodes.length);
      for (var i = 0; i < vnodes.length; i++) {
        res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
      }
      return res
    }
  }
  
  function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
    // #7817 clone node before setting fnContext, otherwise if the node is reused
    // (e.g. it was from a cached normal slot) the fnContext causes named slots
    // that should not be matched to match.
    var clone = cloneVNode(vnode);
    clone.fnContext = contextVm;
    clone.fnOptions = options;
    if (true) {
      (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
    }
    if (data.slot) {
      (clone.data || (clone.data = {})).slot = data.slot;
    }
    return clone
  }
  
  function mergeProps (to, from) {
    for (var key in from) {
      to[camelize(key)] = from[key];
    }
  }
  
  /*  */
  
  /*  */
  
  /*  */
  
  /*  */
  
  // inline hooks to be invoked on component VNodes during patch
  var componentVNodeHooks = {
    init: function init (vnode, hydrating) {
      if (
        vnode.componentInstance &&
        !vnode.componentInstance._isDestroyed &&
        vnode.data.keepAlive
      ) {
        // kept-alive components, treat as a patch
        var mountedNode = vnode; // work around flow
        componentVNodeHooks.prepatch(mountedNode, mountedNode);
      } else {
        var child = vnode.componentInstance = createComponentInstanceForVnode(
          vnode,
          activeInstance
        );
        child.$mount(hydrating ? vnode.elm : undefined, hydrating);
      }
    },
  
    prepatch: function prepatch (oldVnode, vnode) {
      var options = vnode.componentOptions;
      var child = vnode.componentInstance = oldVnode.componentInstance;
      updateChildComponent(
        child,
        options.propsData, // updated props
        options.listeners, // updated listeners
        vnode, // new parent vnode
        options.children // new children
      );
    },
  
    insert: function insert (vnode) {
      var context = vnode.context;
      var componentInstance = vnode.componentInstance;
      if (!componentInstance._isMounted) {
        componentInstance._isMounted = true;
        callHook(componentInstance, 'mounted');
      }
      if (vnode.data.keepAlive) {
        if (context._isMounted) {
          // vue-router#1212
          // During updates, a kept-alive component's child components may
          // change, so directly walking the tree here may call activated hooks
          // on incorrect children. Instead we push them into a queue which will
          // be processed after the whole patch process ended.
          queueActivatedComponent(componentInstance);
        } else {
          activateChildComponent(componentInstance, true /* direct */);
        }
      }
    },
  
    destroy: function destroy (vnode) {
      var componentInstance = vnode.componentInstance;
      if (!componentInstance._isDestroyed) {
        if (!vnode.data.keepAlive) {
          componentInstance.$destroy();
        } else {
          deactivateChildComponent(componentInstance, true /* direct */);
        }
      }
    }
  };
  
  var hooksToMerge = Object.keys(componentVNodeHooks);
  
  function createComponent (
    Ctor,
    data,
    context,
    children,
    tag
  ) {
    if (isUndef(Ctor)) {
      return
    }
  
    var baseCtor = context.$options._base;
  
    // plain options object: turn it into a constructor
    if (isObject(Ctor)) {
      Ctor = baseCtor.extend(Ctor);
    }
  
    // if at this stage it's not a constructor or an async component factory,
    // reject.
    if (typeof Ctor !== 'function') {
      if (true) {
        warn(("Invalid Component definition: " + (String(Ctor))), context);
      }
      return
    }
  
    // async component
    var asyncFactory;
    if (isUndef(Ctor.cid)) {
      asyncFactory = Ctor;
      Ctor = resolveAsyncComponent(asyncFactory, baseCtor);
      if (Ctor === undefined) {
        // return a placeholder node for async component, which is rendered
        // as a comment node but preserves all the raw information for the node.
        // the information will be used for async server-rendering and hydration.
        return createAsyncPlaceholder(
          asyncFactory,
          data,
          context,
          children,
          tag
        )
      }
    }
  
    data = data || {};
  
    // resolve constructor options in case global mixins are applied after
    // component constructor creation
    resolveConstructorOptions(Ctor);
  
    // transform component v-model data into props & events
    if (isDef(data.model)) {
      transformModel(Ctor.options, data);
    }
  
    // extract props
    var propsData = extractPropsFromVNodeData(data, Ctor, tag);
  
    // functional component
    if (isTrue(Ctor.options.functional)) {
      return createFunctionalComponent(Ctor, propsData, data, context, children)
    }
  
    // extract listeners, since these needs to be treated as
    // child component listeners instead of DOM listeners
    var listeners = data.on;
    // replace with listeners with .native modifier
    // so it gets processed during parent component patch.
    data.on = data.nativeOn;
  
    if (isTrue(Ctor.options.abstract)) {
      // abstract components do not keep anything
      // other than props & listeners & slot
  
      // work around flow
      var slot = data.slot;
      data = {};
      if (slot) {
        data.slot = slot;
      }
    }
  
    // install component management hooks onto the placeholder node
    installComponentHooks(data);
  
    // return a placeholder vnode
    var name = Ctor.options.name || tag;
    var vnode = new VNode(
      ("vue-component-" + (Ctor.cid) + (name ? ("-" + name) : '')),
      data, undefined, undefined, undefined, context,
      { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },
      asyncFactory
    );
  
    return vnode
  }
  
  function createComponentInstanceForVnode (
    // we know it's MountedComponentVNode but flow doesn't
    vnode,
    // activeInstance in lifecycle state
    parent
  ) {
    var options = {
      _isComponent: true,
      _parentVnode: vnode,
      parent: parent
    };
    // check inline-template render functions
    var inlineTemplate = vnode.data.inlineTemplate;
    if (isDef(inlineTemplate)) {
      options.render = inlineTemplate.render;
      options.staticRenderFns = inlineTemplate.staticRenderFns;
    }
    return new vnode.componentOptions.Ctor(options)
  }
  
  function installComponentHooks (data) {
    var hooks = data.hook || (data.hook = {});
    for (var i = 0; i < hooksToMerge.length; i++) {
      var key = hooksToMerge[i];
      var existing = hooks[key];
      var toMerge = componentVNodeHooks[key];
      if (existing !== toMerge && !(existing && existing._merged)) {
        hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
      }
    }
  }
  
  function mergeHook$1 (f1, f2) {
    var merged = function (a, b) {
      // flow complains about extra args which is why we use any
      f1(a, b);
      f2(a, b);
    };
    merged._merged = true;
    return merged
  }
  
  // transform component v-model info (value and callback) into
  // prop and event handler respectively.
  function transformModel (options, data) {
    var prop = (options.model && options.model.prop) || 'value';
    var event = (options.model && options.model.event) || 'input'
    ;(data.attrs || (data.attrs = {}))[prop] = data.model.value;
    var on = data.on || (data.on = {});
    var existing = on[event];
    var callback = data.model.callback;
    if (isDef(existing)) {
      if (
        Array.isArray(existing)
          ? existing.indexOf(callback) === -1
          : existing !== callback
      ) {
        on[event] = [callback].concat(existing);
      }
    } else {
      on[event] = callback;
    }
  }
  
  /*  */
  
  var SIMPLE_NORMALIZE = 1;
  var ALWAYS_NORMALIZE = 2;
  
  // wrapper function for providing a more flexible interface
  // without getting yelled at by flow
  function createElement (
    context,
    tag,
    data,
    children,
    normalizationType,
    alwaysNormalize
  ) {
    if (Array.isArray(data) || isPrimitive(data)) {
      normalizationType = children;
      children = data;
      data = undefined;
    }
    if (isTrue(alwaysNormalize)) {
      normalizationType = ALWAYS_NORMALIZE;
    }
    return _createElement(context, tag, data, children, normalizationType)
  }
  
  function _createElement (
    context,
    tag,
    data,
    children,
    normalizationType
  ) {
    if (isDef(data) && isDef((data).__ob__)) {
       true && warn(
        "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
        'Always create fresh vnode data objects in each render!',
        context
      );
      return createEmptyVNode()
    }
    // object syntax in v-bind
    if (isDef(data) && isDef(data.is)) {
      tag = data.is;
    }
    if (!tag) {
      // in case of component :is set to falsy value
      return createEmptyVNode()
    }
    // warn against non-primitive key
    if ( true &&
      isDef(data) && isDef(data.key) && !isPrimitive(data.key)
    ) {
      {
        warn(
          'Avoid using non-primitive value as key, ' +
          'use string/number value instead.',
          context
        );
      }
    }
    // support single function children as default scoped slot
    if (Array.isArray(children) &&
      typeof children[0] === 'function'
    ) {
      data = data || {};
      data.scopedSlots = { default: children[0] };
      children.length = 0;
    }
    if (normalizationType === ALWAYS_NORMALIZE) {
      children = normalizeChildren(children);
    } else if (normalizationType === SIMPLE_NORMALIZE) {
      children = simpleNormalizeChildren(children);
    }
    var vnode, ns;
    if (typeof tag === 'string') {
      var Ctor;
      ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
      if (config.isReservedTag(tag)) {
        // platform built-in elements
        if ( true && isDef(data) && isDef(data.nativeOn) && data.tag !== 'component') {
          warn(
            ("The .native modifier for v-on is only valid on components but it was used on <" + tag + ">."),
            context
          );
        }
        vnode = new VNode(
          config.parsePlatformTagName(tag), data, children,
          undefined, undefined, context
        );
      } else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
        // component
        vnode = createComponent(Ctor, data, context, children, tag);
      } else {
        // unknown or unlisted namespaced elements
        // check at runtime because it may get assigned a namespace when its
        // parent normalizes children
        vnode = new VNode(
          tag, data, children,
          undefined, undefined, context
        );
      }
    } else {
      // direct component options / constructor
      vnode = createComponent(tag, data, context, children);
    }
    if (Array.isArray(vnode)) {
      return vnode
    } else if (isDef(vnode)) {
      if (isDef(ns)) { applyNS(vnode, ns); }
      if (isDef(data)) { registerDeepBindings(data); }
      return vnode
    } else {
      return createEmptyVNode()
    }
  }
  
  function applyNS (vnode, ns, force) {
    vnode.ns = ns;
    if (vnode.tag === 'foreignObject') {
      // use default namespace inside foreignObject
      ns = undefined;
      force = true;
    }
    if (isDef(vnode.children)) {
      for (var i = 0, l = vnode.children.length; i < l; i++) {
        var child = vnode.children[i];
        if (isDef(child.tag) && (
          isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
          applyNS(child, ns, force);
        }
      }
    }
  }
  
  // ref #5318
  // necessary to ensure parent re-render when deep bindings like :style and
  // :class are used on slot nodes
  function registerDeepBindings (data) {
    if (isObject(data.style)) {
      traverse(data.style);
    }
    if (isObject(data.class)) {
      traverse(data.class);
    }
  }
  
  /*  */
  
  function initRender (vm) {
    vm._vnode = null; // the root of the child tree
    vm._staticTrees = null; // v-once cached trees
    var options = vm.$options;
    var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
    var renderContext = parentVnode && parentVnode.context;
    vm.$slots = resolveSlots(options._renderChildren, renderContext);
    vm.$scopedSlots = emptyObject;
    // bind the createElement fn to this instance
    // so that we get proper render context inside it.
    // args order: tag, data, children, normalizationType, alwaysNormalize
    // internal version is used by render functions compiled from templates
    vm._c = function (a, b, c, d) { return createElement(vm, a, b, c, d, false); };
    // normalization is always applied for the public version, used in
    // user-written render functions.
    vm.$createElement = function (a, b, c, d) { return createElement(vm, a, b, c, d, true); };
  
    // $attrs & $listeners are exposed for easier HOC creation.
    // they need to be reactive so that HOCs using them are always updated
    var parentData = parentVnode && parentVnode.data;
  
    /* istanbul ignore else */
    if (true) {
      defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
        !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
      }, true);
      defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, function () {
        !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
      }, true);
    } else {}
  }
  
  var currentRenderingInstance = null;
  
  function renderMixin (Vue) {
    // install runtime convenience helpers
    installRenderHelpers(Vue.prototype);
  
    Vue.prototype.$nextTick = function (fn) {
      return nextTick(fn, this)
    };
  
    Vue.prototype._render = function () {
      var vm = this;
      var ref = vm.$options;
      var render = ref.render;
      var _parentVnode = ref._parentVnode;
  
      if (_parentVnode) {
        vm.$scopedSlots = normalizeScopedSlots(
          _parentVnode.data.scopedSlots,
          vm.$slots,
          vm.$scopedSlots
        );
      }
  
      // set parent vnode. this allows render functions to have access
      // to the data on the placeholder node.
      vm.$vnode = _parentVnode;
      // render self
      var vnode;
      try {
        // There's no need to maintain a stack because all render fns are called
        // separately from one another. Nested component's render fns are called
        // when parent component is patched.
        currentRenderingInstance = vm;
        vnode = render.call(vm._renderProxy, vm.$createElement);
      } catch (e) {
        handleError(e, vm, "render");
        // return error render result,
        // or previous vnode to prevent render error causing blank component
        /* istanbul ignore else */
        if ( true && vm.$options.renderError) {
          try {
            vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
          } catch (e) {
            handleError(e, vm, "renderError");
            vnode = vm._vnode;
          }
        } else {
          vnode = vm._vnode;
        }
      } finally {
        currentRenderingInstance = null;
      }
      // if the returned array contains only a single node, allow it
      if (Array.isArray(vnode) && vnode.length === 1) {
        vnode = vnode[0];
      }
      // return empty vnode in case the render function errored out
      if (!(vnode instanceof VNode)) {
        if ( true && Array.isArray(vnode)) {
          warn(
            'Multiple root nodes returned from render function. Render function ' +
            'should return a single root node.',
            vm
          );
        }
        vnode = createEmptyVNode();
      }
      // set parent
      vnode.parent = _parentVnode;
      return vnode
    };
  }
  
  /*  */
  
  function ensureCtor (comp, base) {
    if (
      comp.__esModule ||
      (hasSymbol && comp[Symbol.toStringTag] === 'Module')
    ) {
      comp = comp.default;
    }
    return isObject(comp)
      ? base.extend(comp)
      : comp
  }
  
  function createAsyncPlaceholder (
    factory,
    data,
    context,
    children,
    tag
  ) {
    var node = createEmptyVNode();
    node.asyncFactory = factory;
    node.asyncMeta = { data: data, context: context, children: children, tag: tag };
    return node
  }
  
  function resolveAsyncComponent (
    factory,
    baseCtor
  ) {
    if (isTrue(factory.error) && isDef(factory.errorComp)) {
      return factory.errorComp
    }
  
    if (isDef(factory.resolved)) {
      return factory.resolved
    }
  
    var owner = currentRenderingInstance;
    if (owner && isDef(factory.owners) && factory.owners.indexOf(owner) === -1) {
      // already pending
      factory.owners.push(owner);
    }
  
    if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
      return factory.loadingComp
    }
  
    if (owner && !isDef(factory.owners)) {
      var owners = factory.owners = [owner];
      var sync = true;
      var timerLoading = null;
      var timerTimeout = null
  
      ;(owner).$on('hook:destroyed', function () { return remove(owners, owner); });
  
      var forceRender = function (renderCompleted) {
        for (var i = 0, l = owners.length; i < l; i++) {
          (owners[i]).$forceUpdate();
        }
  
        if (renderCompleted) {
          owners.length = 0;
          if (timerLoading !== null) {
            clearTimeout(timerLoading);
            timerLoading = null;
          }
          if (timerTimeout !== null) {
            clearTimeout(timerTimeout);
            timerTimeout = null;
          }
        }
      };
  
      var resolve = once(function (res) {
        // cache resolved
        factory.resolved = ensureCtor(res, baseCtor);
        // invoke callbacks only if this is not a synchronous resolve
        // (async resolves are shimmed as synchronous during SSR)
        if (!sync) {
          forceRender(true);
        } else {
          owners.length = 0;
        }
      });
  
      var reject = once(function (reason) {
         true && warn(
          "Failed to resolve async component: " + (String(factory)) +
          (reason ? ("\nReason: " + reason) : '')
        );
        if (isDef(factory.errorComp)) {
          factory.error = true;
          forceRender(true);
        }
      });
  
      var res = factory(resolve, reject);
  
      if (isObject(res)) {
        if (isPromise(res)) {
          // () => Promise
          if (isUndef(factory.resolved)) {
            res.then(resolve, reject);
          }
        } else if (isPromise(res.component)) {
          res.component.then(resolve, reject);
  
          if (isDef(res.error)) {
            factory.errorComp = ensureCtor(res.error, baseCtor);
          }
  
          if (isDef(res.loading)) {
            factory.loadingComp = ensureCtor(res.loading, baseCtor);
            if (res.delay === 0) {
              factory.loading = true;
            } else {
              timerLoading = setTimeout(function () {
                timerLoading = null;
                if (isUndef(factory.resolved) && isUndef(factory.error)) {
                  factory.loading = true;
                  forceRender(false);
                }
              }, res.delay || 200);
            }
          }
  
          if (isDef(res.timeout)) {
            timerTimeout = setTimeout(function () {
              timerTimeout = null;
              if (isUndef(factory.resolved)) {
                reject(
                   true
                    ? ("timeout (" + (res.timeout) + "ms)")
                    : 0
                );
              }
            }, res.timeout);
          }
        }
      }
  
      sync = false;
      // return in case resolved synchronously
      return factory.loading
        ? factory.loadingComp
        : factory.resolved
    }
  }
  
  /*  */
  
  function getFirstComponentChild (children) {
    if (Array.isArray(children)) {
      for (var i = 0; i < children.length; i++) {
        var c = children[i];
        if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
          return c
        }
      }
    }
  }
  
  /*  */
  
  /*  */
  
  function initEvents (vm) {
    vm._events = Object.create(null);
    vm._hasHookEvent = false;
    // init parent attached events
    var listeners = vm.$options._parentListeners;
    if (listeners) {
      updateComponentListeners(vm, listeners);
    }
  }
  
  var target;
  
  function add (event, fn) {
    target.$on(event, fn);
  }
  
  function remove$1 (event, fn) {
    target.$off(event, fn);
  }
  
  function createOnceHandler (event, fn) {
    var _target = target;
    return function onceHandler () {
      var res = fn.apply(null, arguments);
      if (res !== null) {
        _target.$off(event, onceHandler);
      }
    }
  }
  
  function updateComponentListeners (
    vm,
    listeners,
    oldListeners
  ) {
    target = vm;
    updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
    target = undefined;
  }
  
  function eventsMixin (Vue) {
    var hookRE = /^hook:/;
    Vue.prototype.$on = function (event, fn) {
      var vm = this;
      if (Array.isArray(event)) {
        for (var i = 0, l = event.length; i < l; i++) {
          vm.$on(event[i], fn);
        }
      } else {
        (vm._events[event] || (vm._events[event] = [])).push(fn);
        // optimize hook:event cost by using a boolean flag marked at registration
        // instead of a hash lookup
        if (hookRE.test(event)) {
          vm._hasHookEvent = true;
        }
      }
      return vm
    };
  
    Vue.prototype.$once = function (event, fn) {
      var vm = this;
      function on () {
        vm.$off(event, on);
        fn.apply(vm, arguments);
      }
      on.fn = fn;
      vm.$on(event, on);
      return vm
    };
  
    Vue.prototype.$off = function (event, fn) {
      var vm = this;
      // all
      if (!arguments.length) {
        vm._events = Object.create(null);
        return vm
      }
      // array of events
      if (Array.isArray(event)) {
        for (var i$1 = 0, l = event.length; i$1 < l; i$1++) {
          vm.$off(event[i$1], fn);
        }
        return vm
      }
      // specific event
      var cbs = vm._events[event];
      if (!cbs) {
        return vm
      }
      if (!fn) {
        vm._events[event] = null;
        return vm
      }
      // specific handler
      var cb;
      var i = cbs.length;
      while (i--) {
        cb = cbs[i];
        if (cb === fn || cb.fn === fn) {
          cbs.splice(i, 1);
          break
        }
      }
      return vm
    };
  
    Vue.prototype.$emit = function (event) {
      var vm = this;
      if (true) {
        var lowerCaseEvent = event.toLowerCase();
        if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) {
          tip(
            "Event \"" + lowerCaseEvent + "\" is emitted in component " +
            (formatComponentName(vm)) + " but the handler is registered for \"" + event + "\". " +
            "Note that HTML attributes are case-insensitive and you cannot use " +
            "v-on to listen to camelCase events when using in-DOM templates. " +
            "You should probably use \"" + (hyphenate(event)) + "\" instead of \"" + event + "\"."
          );
        }
      }
      var cbs = vm._events[event];
      if (cbs) {
        cbs = cbs.length > 1 ? toArray(cbs) : cbs;
        var args = toArray(arguments, 1);
        var info = "event handler for \"" + event + "\"";
        for (var i = 0, l = cbs.length; i < l; i++) {
          invokeWithErrorHandling(cbs[i], vm, args, vm, info);
        }
      }
      return vm
    };
  }
  
  /*  */
  
  var activeInstance = null;
  var isUpdatingChildComponent = false;
  
  function setActiveInstance(vm) {
    var prevActiveInstance = activeInstance;
    activeInstance = vm;
    return function () {
      activeInstance = prevActiveInstance;
    }
  }
  
  function initLifecycle (vm) {
    var options = vm.$options;
  
    // locate first non-abstract parent
    var parent = options.parent;
    if (parent && !options.abstract) {
      while (parent.$options.abstract && parent.$parent) {
        parent = parent.$parent;
      }
      parent.$children.push(vm);
    }
  
    vm.$parent = parent;
    vm.$root = parent ? parent.$root : vm;
  
    vm.$children = [];
    vm.$refs = {};
  
    vm._watcher = null;
    vm._inactive = null;
    vm._directInactive = false;
    vm._isMounted = false;
    vm._isDestroyed = false;
    vm._isBeingDestroyed = false;
  }
  
  function lifecycleMixin (Vue) {
    Vue.prototype._update = function (vnode, hydrating) {
      var vm = this;
      var prevEl = vm.$el;
      var prevVnode = vm._vnode;
      var restoreActiveInstance = setActiveInstance(vm);
      vm._vnode = vnode;
      // Vue.prototype.__patch__ is injected in entry points
      // based on the rendering backend used.
      if (!prevVnode) {
        // initial render
        vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
      } else {
        // updates
        vm.$el = vm.__patch__(prevVnode, vnode);
      }
      restoreActiveInstance();
      // update __vue__ reference
      if (prevEl) {
        prevEl.__vue__ = null;
      }
      if (vm.$el) {
        vm.$el.__vue__ = vm;
      }
      // if parent is an HOC, update its $el as well
      if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {
        vm.$parent.$el = vm.$el;
      }
      // updated hook is called by the scheduler to ensure that children are
      // updated in a parent's updated hook.
    };
  
    Vue.prototype.$forceUpdate = function () {
      var vm = this;
      if (vm._watcher) {
        vm._watcher.update();
      }
    };
  
    Vue.prototype.$destroy = function () {
      var vm = this;
      if (vm._isBeingDestroyed) {
        return
      }
      callHook(vm, 'beforeDestroy');
      vm._isBeingDestroyed = true;
      // remove self from parent
      var parent = vm.$parent;
      if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {
        remove(parent.$children, vm);
      }
      // teardown watchers
      if (vm._watcher) {
        vm._watcher.teardown();
      }
      var i = vm._watchers.length;
      while (i--) {
        vm._watchers[i].teardown();
      }
      // remove reference from data ob
      // frozen object may not have observer.
      if (vm._data.__ob__) {
        vm._data.__ob__.vmCount--;
      }
      // call the last hook...
      vm._isDestroyed = true;
      // invoke destroy hooks on current rendered tree
      vm.__patch__(vm._vnode, null);
      // fire destroyed hook
      callHook(vm, 'destroyed');
      // turn off all instance listeners.
      vm.$off();
      // remove __vue__ reference
      if (vm.$el) {
        vm.$el.__vue__ = null;
      }
      // release circular reference (#6759)
      if (vm.$vnode) {
        vm.$vnode.parent = null;
      }
    };
  }
  
  function mountComponent (
    vm,
    el,
    hydrating
  ) {
    vm.$el = el;
    if (!vm.$options.render) {
      vm.$options.render = createEmptyVNode;
      if (true) {
        /* istanbul ignore if */
        if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') ||
          vm.$options.el || el) {
          warn(
            'You are using the runtime-only build of Vue where the template ' +
            'compiler is not available. Either pre-compile the templates into ' +
            'render functions, or use the compiler-included build.',
            vm
          );
        } else {
          warn(
            'Failed to mount component: template or render function not defined.',
            vm
          );
        }
      }
    }
    callHook(vm, 'beforeMount');
  
    var updateComponent;
    /* istanbul ignore if */
    if ( true && config.performance && mark) {
      updateComponent = function () {
        var name = vm._name;
        var id = vm._uid;
        var startTag = "vue-perf-start:" + id;
        var endTag = "vue-perf-end:" + id;
  
        mark(startTag);
        var vnode = vm._render();
        mark(endTag);
        measure(("vue " + name + " render"), startTag, endTag);
  
        mark(startTag);
        vm._update(vnode, hydrating);
        mark(endTag);
        measure(("vue " + name + " patch"), startTag, endTag);
      };
    } else {
      updateComponent = function () {
        vm._update(vm._render(), hydrating);
      };
    }
  
    // we set this to vm._watcher inside the watcher's constructor
    // since the watcher's initial patch may call $forceUpdate (e.g. inside child
    // component's mounted hook), which relies on vm._watcher being already defined
    new Watcher(vm, updateComponent, noop, {
      before: function before () {
        if (vm._isMounted && !vm._isDestroyed) {
          callHook(vm, 'beforeUpdate');
        }
      }
    }, true /* isRenderWatcher */);
    hydrating = false;
  
    // manually mounted instance, call mounted on self
    // mounted is called for render-created child components in its inserted hook
    if (vm.$vnode == null) {
      vm._isMounted = true;
      callHook(vm, 'mounted');
    }
    return vm
  }
  
  function updateChildComponent (
    vm,
    propsData,
    listeners,
    parentVnode,
    renderChildren
  ) {
    if (true) {
      isUpdatingChildComponent = true;
    }
  
    // determine whether component has slot children
    // we need to do this before overwriting $options._renderChildren.
  
    // check if there are dynamic scopedSlots (hand-written or compiled but with
    // dynamic slot names). Static scoped slots compiled from template has the
    // "$stable" marker.
    var newScopedSlots = parentVnode.data.scopedSlots;
    var oldScopedSlots = vm.$scopedSlots;
    var hasDynamicScopedSlot = !!(
      (newScopedSlots && !newScopedSlots.$stable) ||
      (oldScopedSlots !== emptyObject && !oldScopedSlots.$stable) ||
      (newScopedSlots && vm.$scopedSlots.$key !== newScopedSlots.$key) ||
      (!newScopedSlots && vm.$scopedSlots.$key)
    );
  
    // Any static slot children from the parent may have changed during parent's
    // update. Dynamic scoped slots may also have changed. In such cases, a forced
    // update is necessary to ensure correctness.
    var needsForceUpdate = !!(
      renderChildren ||               // has new static slots
      vm.$options._renderChildren ||  // has old static slots
      hasDynamicScopedSlot
    );
  
    vm.$options._parentVnode = parentVnode;
    vm.$vnode = parentVnode; // update vm's placeholder node without re-render
  
    if (vm._vnode) { // update child tree's parent
      vm._vnode.parent = parentVnode;
    }
    vm.$options._renderChildren = renderChildren;
  
    // update $attrs and $listeners hash
    // these are also reactive so they may trigger child update if the child
    // used them during render
    vm.$attrs = parentVnode.data.attrs || emptyObject;
    vm.$listeners = listeners || emptyObject;
  
    // update props
    if (propsData && vm.$options.props) {
      toggleObserving(false);
      var props = vm._props;
      var propKeys = vm.$options._propKeys || [];
      for (var i = 0; i < propKeys.length; i++) {
        var key = propKeys[i];
        var propOptions = vm.$options.props; // wtf flow?
        props[key] = validateProp(key, propOptions, propsData, vm);
      }
      toggleObserving(true);
      // keep a copy of raw propsData
      vm.$options.propsData = propsData;
    }
  
    // update listeners
    listeners = listeners || emptyObject;
    var oldListeners = vm.$options._parentListeners;
    vm.$options._parentListeners = listeners;
    updateComponentListeners(vm, listeners, oldListeners);
  
    // resolve slots + force update if has children
    if (needsForceUpdate) {
      vm.$slots = resolveSlots(renderChildren, parentVnode.context);
      vm.$forceUpdate();
    }
  
    if (true) {
      isUpdatingChildComponent = false;
    }
  }
  
  function isInInactiveTree (vm) {
    while (vm && (vm = vm.$parent)) {
      if (vm._inactive) { return true }
    }
    return false
  }
  
  function activateChildComponent (vm, direct) {
    if (direct) {
      vm._directInactive = false;
      if (isInInactiveTree(vm)) {
        return
      }
    } else if (vm._directInactive) {
      return
    }
    if (vm._inactive || vm._inactive === null) {
      vm._inactive = false;
      for (var i = 0; i < vm.$children.length; i++) {
        activateChildComponent(vm.$children[i]);
      }
      callHook(vm, 'activated');
    }
  }
  
  function deactivateChildComponent (vm, direct) {
    if (direct) {
      vm._directInactive = true;
      if (isInInactiveTree(vm)) {
        return
      }
    }
    if (!vm._inactive) {
      vm._inactive = true;
      for (var i = 0; i < vm.$children.length; i++) {
        deactivateChildComponent(vm.$children[i]);
      }
      callHook(vm, 'deactivated');
    }
  }
  
  function callHook (vm, hook) {
    // #7573 disable dep collection when invoking lifecycle hooks
    pushTarget();
    var handlers = vm.$options[hook];
    var info = hook + " hook";
    if (handlers) {
      for (var i = 0, j = handlers.length; i < j; i++) {
        invokeWithErrorHandling(handlers[i], vm, null, vm, info);
      }
    }
    if (vm._hasHookEvent) {
      vm.$emit('hook:' + hook);
    }
    popTarget();
  }
  
  /*  */
  
  var MAX_UPDATE_COUNT = 100;
  
  var queue = [];
  var activatedChildren = [];
  var has = {};
  var circular = {};
  var waiting = false;
  var flushing = false;
  var index = 0;
  
  /**
   * Reset the scheduler's state.
   */
  function resetSchedulerState () {
    index = queue.length = activatedChildren.length = 0;
    has = {};
    if (true) {
      circular = {};
    }
    waiting = flushing = false;
  }
  
  // Async edge case #6566 requires saving the timestamp when event listeners are
  // attached. However, calling performance.now() has a perf overhead especially
  // if the page has thousands of event listeners. Instead, we take a timestamp
  // every time the scheduler flushes and use that for all event listeners
  // attached during that flush.
  var currentFlushTimestamp = 0;
  
  // Async edge case fix requires storing an event listener's attach timestamp.
  var getNow = Date.now;
  
  // Determine what event timestamp the browser is using. Annoyingly, the
  // timestamp can either be hi-res (relative to page load) or low-res
  // (relative to UNIX epoch), so in order to compare time we have to use the
  // same timestamp type when saving the flush timestamp.
  // All IE versions use low-res event timestamps, and have problematic clock
  // implementations (#9632)
  if (inBrowser && !isIE) {
    var performance = window.performance;
    if (
      performance &&
      typeof performance.now === 'function' &&
      getNow() > document.createEvent('Event').timeStamp
    ) {
      // if the event timestamp, although evaluated AFTER the Date.now(), is
      // smaller than it, it means the event is using a hi-res timestamp,
      // and we need to use the hi-res version for event listener timestamps as
      // well.
      getNow = function () { return performance.now(); };
    }
  }
  
  /**
   * Flush both queues and run the watchers.
   */
  function flushSchedulerQueue () {
    currentFlushTimestamp = getNow();
    flushing = true;
    var watcher, id;
  
    // Sort queue before flush.
    // This ensures that:
    // 1. Components are updated from parent to child. (because parent is always
    //    created before the child)
    // 2. A component's user watchers are run before its render watcher (because
    //    user watchers are created before the render watcher)
    // 3. If a component is destroyed during a parent component's watcher run,
    //    its watchers can be skipped.
    queue.sort(function (a, b) { return a.id - b.id; });
  
    // do not cache length because more watchers might be pushed
    // as we run existing watchers
    for (index = 0; index < queue.length; index++) {
      watcher = queue[index];
      if (watcher.before) {
        watcher.before();
      }
      id = watcher.id;
      has[id] = null;
      watcher.run();
      // in dev build, check and stop circular updates.
      if ( true && has[id] != null) {
        circular[id] = (circular[id] || 0) + 1;
        if (circular[id] > MAX_UPDATE_COUNT) {
          warn(
            'You may have an infinite update loop ' + (
              watcher.user
                ? ("in watcher with expression \"" + (watcher.expression) + "\"")
                : "in a component render function."
            ),
            watcher.vm
          );
          break
        }
      }
    }
  
    // keep copies of post queues before resetting state
    var activatedQueue = activatedChildren.slice();
    var updatedQueue = queue.slice();
  
    resetSchedulerState();
  
    // call component updated and activated hooks
    callActivatedHooks(activatedQueue);
    callUpdatedHooks(updatedQueue);
  
    // devtool hook
    /* istanbul ignore if */
    if (devtools && config.devtools) {
      devtools.emit('flush');
    }
  }
  
  function callUpdatedHooks (queue) {
    var i = queue.length;
    while (i--) {
      var watcher = queue[i];
      var vm = watcher.vm;
      if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {
        callHook(vm, 'updated');
      }
    }
  }
  
  /**
   * Queue a kept-alive component that was activated during patch.
   * The queue will be processed after the entire tree has been patched.
   */
  function queueActivatedComponent (vm) {
    // setting _inactive to false here so that a render function can
    // rely on checking whether it's in an inactive tree (e.g. router-view)
    vm._inactive = false;
    activatedChildren.push(vm);
  }
  
  function callActivatedHooks (queue) {
    for (var i = 0; i < queue.length; i++) {
      queue[i]._inactive = true;
      activateChildComponent(queue[i], true /* true */);
    }
  }
  
  /**
   * Push a watcher into the watcher queue.
   * Jobs with duplicate IDs will be skipped unless it's
   * pushed when the queue is being flushed.
   */
  function queueWatcher (watcher) {
    var id = watcher.id;
    if (has[id] == null) {
      has[id] = true;
      if (!flushing) {
        queue.push(watcher);
      } else {
        // if already flushing, splice the watcher based on its id
        // if already past its id, it will be run next immediately.
        var i = queue.length - 1;
        while (i > index && queue[i].id > watcher.id) {
          i--;
        }
        queue.splice(i + 1, 0, watcher);
      }
      // queue the flush
      if (!waiting) {
        waiting = true;
  
        if ( true && !config.async) {
          flushSchedulerQueue();
          return
        }
        nextTick(flushSchedulerQueue);
      }
    }
  }
  
  /*  */
  
  
  
  var uid$2 = 0;
  
  /**
   * A watcher parses an expression, collects dependencies,
   * and fires callback when the expression value changes.
   * This is used for both the $watch() api and directives.
   */
  var Watcher = function Watcher (
    vm,
    expOrFn,
    cb,
    options,
    isRenderWatcher
  ) {
    this.vm = vm;
    if (isRenderWatcher) {
      vm._watcher = this;
    }
    vm._watchers.push(this);
    // options
    if (options) {
      this.deep = !!options.deep;
      this.user = !!options.user;
      this.lazy = !!options.lazy;
      this.sync = !!options.sync;
      this.before = options.before;
    } else {
      this.deep = this.user = this.lazy = this.sync = false;
    }
    this.cb = cb;
    this.id = ++uid$2; // uid for batching
    this.active = true;
    this.dirty = this.lazy; // for lazy watchers
    this.deps = [];
    this.newDeps = [];
    this.depIds = new _Set();
    this.newDepIds = new _Set();
    this.expression =  true
      ? expOrFn.toString()
      : 0;
    // parse expression for getter
    if (typeof expOrFn === 'function') {
      this.getter = expOrFn;
    } else {
      this.getter = parsePath(expOrFn);
      if (!this.getter) {
        this.getter = noop;
         true && warn(
          "Failed watching path: \"" + expOrFn + "\" " +
          'Watcher only accepts simple dot-delimited paths. ' +
          'For full control, use a function instead.',
          vm
        );
      }
    }
    this.value = this.lazy
      ? undefined
      : this.get();
  };
  
  /**
   * Evaluate the getter, and re-collect dependencies.
   */
  Watcher.prototype.get = function get () {
    pushTarget(this);
    var value;
    var vm = this.vm;
    try {
      value = this.getter.call(vm, vm);
    } catch (e) {
      if (this.user) {
        handleError(e, vm, ("getter for watcher \"" + (this.expression) + "\""));
      } else {
        throw e
      }
    } finally {
      // "touch" every property so they are all tracked as
      // dependencies for deep watching
      if (this.deep) {
        traverse(value);
      }
      popTarget();
      this.cleanupDeps();
    }
    return value
  };
  
  /**
   * Add a dependency to this directive.
   */
  Watcher.prototype.addDep = function addDep (dep) {
    var id = dep.id;
    if (!this.newDepIds.has(id)) {
      this.newDepIds.add(id);
      this.newDeps.push(dep);
      if (!this.depIds.has(id)) {
        dep.addSub(this);
      }
    }
  };
  
  /**
   * Clean up for dependency collection.
   */
  Watcher.prototype.cleanupDeps = function cleanupDeps () {
    var i = this.deps.length;
    while (i--) {
      var dep = this.deps[i];
      if (!this.newDepIds.has(dep.id)) {
        dep.removeSub(this);
      }
    }
    var tmp = this.depIds;
    this.depIds = this.newDepIds;
    this.newDepIds = tmp;
    this.newDepIds.clear();
    tmp = this.deps;
    this.deps = this.newDeps;
    this.newDeps = tmp;
    this.newDeps.length = 0;
  };
  
  /**
   * Subscriber interface.
   * Will be called when a dependency changes.
   */
  Watcher.prototype.update = function update () {
    /* istanbul ignore else */
    if (this.lazy) {
      this.dirty = true;
    } else if (this.sync) {
      this.run();
    } else {
      queueWatcher(this);
    }
  };
  
  /**
   * Scheduler job interface.
   * Will be called by the scheduler.
   */
  Watcher.prototype.run = function run () {
    if (this.active) {
      var value = this.get();
      if (
        value !== this.value ||
        // Deep watchers and watchers on Object/Arrays should fire even
        // when the value is the same, because the value may
        // have mutated.
        isObject(value) ||
        this.deep
      ) {
        // set new value
        var oldValue = this.value;
        this.value = value;
        if (this.user) {
          var info = "callback for watcher \"" + (this.expression) + "\"";
          invokeWithErrorHandling(this.cb, this.vm, [value, oldValue], this.vm, info);
        } else {
          this.cb.call(this.vm, value, oldValue);
        }
      }
    }
  };
  
  /**
   * Evaluate the value of the watcher.
   * This only gets called for lazy watchers.
   */
  Watcher.prototype.evaluate = function evaluate () {
    this.value = this.get();
    this.dirty = false;
  };
  
  /**
   * Depend on all deps collected by this watcher.
   */
  Watcher.prototype.depend = function depend () {
    var i = this.deps.length;
    while (i--) {
      this.deps[i].depend();
    }
  };
  
  /**
   * Remove self from all dependencies' subscriber list.
   */
  Watcher.prototype.teardown = function teardown () {
    if (this.active) {
      // remove self from vm's watcher list
      // this is a somewhat expensive operation so we skip it
      // if the vm is being destroyed.
      if (!this.vm._isBeingDestroyed) {
        remove(this.vm._watchers, this);
      }
      var i = this.deps.length;
      while (i--) {
        this.deps[i].removeSub(this);
      }
      this.active = false;
    }
  };
  
  /*  */
  
  var sharedPropertyDefinition = {
    enumerable: true,
    configurable: true,
    get: noop,
    set: noop
  };
  
  function proxy (target, sourceKey, key) {
    sharedPropertyDefinition.get = function proxyGetter () {
      return this[sourceKey][key]
    };
    sharedPropertyDefinition.set = function proxySetter (val) {
      this[sourceKey][key] = val;
    };
    Object.defineProperty(target, key, sharedPropertyDefinition);
  }
  
  function initState (vm) {
    vm._watchers = [];
    var opts = vm.$options;
    if (opts.props) { initProps(vm, opts.props); }
    if (opts.methods) { initMethods(vm, opts.methods); }
    if (opts.data) {
      initData(vm);
    } else {
      observe(vm._data = {}, true /* asRootData */);
    }
    if (opts.computed) { initComputed(vm, opts.computed); }
    if (opts.watch && opts.watch !== nativeWatch) {
      initWatch(vm, opts.watch);
    }
  }
  
  function initProps (vm, propsOptions) {
    var propsData = vm.$options.propsData || {};
    var props = vm._props = {};
    // cache prop keys so that future props updates can iterate using Array
    // instead of dynamic object key enumeration.
    var keys = vm.$options._propKeys = [];
    var isRoot = !vm.$parent;
    // root instance props should be converted
    if (!isRoot) {
      toggleObserving(false);
    }
    var loop = function ( key ) {
      keys.push(key);
      var value = validateProp(key, propsOptions, propsData, vm);
      /* istanbul ignore else */
      if (true) {
        var hyphenatedKey = hyphenate(key);
        if (isReservedAttribute(hyphenatedKey) ||
            config.isReservedAttr(hyphenatedKey)) {
          warn(
            ("\"" + hyphenatedKey + "\" is a reserved attribute and cannot be used as component prop."),
            vm
          );
        }
        defineReactive$$1(props, key, value, function () {
          if (!isRoot && !isUpdatingChildComponent) {
            warn(
              "Avoid mutating a prop directly since the value will be " +
              "overwritten whenever the parent component re-renders. " +
              "Instead, use a data or computed property based on the prop's " +
              "value. Prop being mutated: \"" + key + "\"",
              vm
            );
          }
        });
      } else {}
      // static props are already proxied on the component's prototype
      // during Vue.extend(). We only need to proxy props defined at
      // instantiation here.
      if (!(key in vm)) {
        proxy(vm, "_props", key);
      }
    };
  
    for (var key in propsOptions) loop( key );
    toggleObserving(true);
  }
  
  function initData (vm) {
    var data = vm.$options.data;
    data = vm._data = typeof data === 'function'
      ? getData(data, vm)
      : data || {};
    if (!isPlainObject(data)) {
      data = {};
       true && warn(
        'data functions should return an object:\n' +
        'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function',
        vm
      );
    }
    // proxy data on instance
    var keys = Object.keys(data);
    var props = vm.$options.props;
    var methods = vm.$options.methods;
    var i = keys.length;
    while (i--) {
      var key = keys[i];
      if (true) {
        if (methods && hasOwn(methods, key)) {
          warn(
            ("Method \"" + key + "\" has already been defined as a data property."),
            vm
          );
        }
      }
      if (props && hasOwn(props, key)) {
         true && warn(
          "The data property \"" + key + "\" is already declared as a prop. " +
          "Use prop default value instead.",
          vm
        );
      } else if (!isReserved(key)) {
        proxy(vm, "_data", key);
      }
    }
    // observe data
    observe(data, true /* asRootData */);
  }
  
  function getData (data, vm) {
    // #7573 disable dep collection when invoking data getters
    pushTarget();
    try {
      return data.call(vm, vm)
    } catch (e) {
      handleError(e, vm, "data()");
      return {}
    } finally {
      popTarget();
    }
  }
  
  var computedWatcherOptions = { lazy: true };
  
  function initComputed (vm, computed) {
    // $flow-disable-line
    var watchers = vm._computedWatchers = Object.create(null);
    // computed properties are just getters during SSR
    var isSSR = isServerRendering();
  
    for (var key in computed) {
      var userDef = computed[key];
      var getter = typeof userDef === 'function' ? userDef : userDef.get;
      if ( true && getter == null) {
        warn(
          ("Getter is missing for computed property \"" + key + "\"."),
          vm
        );
      }
  
      if (!isSSR) {
        // create internal watcher for the computed property.
        watchers[key] = new Watcher(
          vm,
          getter || noop,
          noop,
          computedWatcherOptions
        );
      }
  
      // component-defined computed properties are already defined on the
      // component prototype. We only need to define computed properties defined
      // at instantiation here.
      if (!(key in vm)) {
        defineComputed(vm, key, userDef);
      } else if (true) {
        if (key in vm.$data) {
          warn(("The computed property \"" + key + "\" is already defined in data."), vm);
        } else if (vm.$options.props && key in vm.$options.props) {
          warn(("The computed property \"" + key + "\" is already defined as a prop."), vm);
        } else if (vm.$options.methods && key in vm.$options.methods) {
          warn(("The computed property \"" + key + "\" is already defined as a method."), vm);
        }
      }
    }
  }
  
  function defineComputed (
    target,
    key,
    userDef
  ) {
    var shouldCache = !isServerRendering();
    if (typeof userDef === 'function') {
      sharedPropertyDefinition.get = shouldCache
        ? createComputedGetter(key)
        : createGetterInvoker(userDef);
      sharedPropertyDefinition.set = noop;
    } else {
      sharedPropertyDefinition.get = userDef.get
        ? shouldCache && userDef.cache !== false
          ? createComputedGetter(key)
          : createGetterInvoker(userDef.get)
        : noop;
      sharedPropertyDefinition.set = userDef.set || noop;
    }
    if ( true &&
        sharedPropertyDefinition.set === noop) {
      sharedPropertyDefinition.set = function () {
        warn(
          ("Computed property \"" + key + "\" was assigned to but it has no setter."),
          this
        );
      };
    }
    Object.defineProperty(target, key, sharedPropertyDefinition);
  }
  
  function createComputedGetter (key) {
    return function computedGetter () {
      var watcher = this._computedWatchers && this._computedWatchers[key];
      if (watcher) {
        if (watcher.dirty) {
          watcher.evaluate();
        }
        if (Dep.target) {
          watcher.depend();
        }
        return watcher.value
      }
    }
  }
  
  function createGetterInvoker(fn) {
    return function computedGetter () {
      return fn.call(this, this)
    }
  }
  
  function initMethods (vm, methods) {
    var props = vm.$options.props;
    for (var key in methods) {
      if (true) {
        if (typeof methods[key] !== 'function') {
          warn(
            "Method \"" + key + "\" has type \"" + (typeof methods[key]) + "\" in the component definition. " +
            "Did you reference the function correctly?",
            vm
          );
        }
        if (props && hasOwn(props, key)) {
          warn(
            ("Method \"" + key + "\" has already been defined as a prop."),
            vm
          );
        }
        if ((key in vm) && isReserved(key)) {
          warn(
            "Method \"" + key + "\" conflicts with an existing Vue instance method. " +
            "Avoid defining component methods that start with _ or $."
          );
        }
      }
      vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);
    }
  }
  
  function initWatch (vm, watch) {
    for (var key in watch) {
      var handler = watch[key];
      if (Array.isArray(handler)) {
        for (var i = 0; i < handler.length; i++) {
          createWatcher(vm, key, handler[i]);
        }
      } else {
        createWatcher(vm, key, handler);
      }
    }
  }
  
  function createWatcher (
    vm,
    expOrFn,
    handler,
    options
  ) {
    if (isPlainObject(handler)) {
      options = handler;
      handler = handler.handler;
    }
    if (typeof handler === 'string') {
      handler = vm[handler];
    }
    return vm.$watch(expOrFn, handler, options)
  }
  
  function stateMixin (Vue) {
    // flow somehow has problems with directly declared definition object
    // when using Object.defineProperty, so we have to procedurally build up
    // the object here.
    var dataDef = {};
    dataDef.get = function () { return this._data };
    var propsDef = {};
    propsDef.get = function () { return this._props };
    if (true) {
      dataDef.set = function () {
        warn(
          'Avoid replacing instance root $data. ' +
          'Use nested data properties instead.',
          this
        );
      };
      propsDef.set = function () {
        warn("$props is readonly.", this);
      };
    }
    Object.defineProperty(Vue.prototype, '$data', dataDef);
    Object.defineProperty(Vue.prototype, '$props', propsDef);
  
    Vue.prototype.$set = set;
    Vue.prototype.$delete = del;
  
    Vue.prototype.$watch = function (
      expOrFn,
      cb,
      options
    ) {
      var vm = this;
      if (isPlainObject(cb)) {
        return createWatcher(vm, expOrFn, cb, options)
      }
      options = options || {};
      options.user = true;
      var watcher = new Watcher(vm, expOrFn, cb, options);
      if (options.immediate) {
        var info = "callback for immediate watcher \"" + (watcher.expression) + "\"";
        pushTarget();
        invokeWithErrorHandling(cb, vm, [watcher.value], vm, info);
        popTarget();
      }
      return function unwatchFn () {
        watcher.teardown();
      }
    };
  }
  
  /*  */
  
  var uid$3 = 0;
  
  function initMixin (Vue) {
    Vue.prototype._init = function (options) {
      var vm = this;
      // a uid
      vm._uid = uid$3++;
  
      var startTag, endTag;
      /* istanbul ignore if */
      if ( true && config.performance && mark) {
        startTag = "vue-perf-start:" + (vm._uid);
        endTag = "vue-perf-end:" + (vm._uid);
        mark(startTag);
      }
  
      // a flag to avoid this being observed
      vm._isVue = true;
      // merge options
      if (options && options._isComponent) {
        // optimize internal component instantiation
        // since dynamic options merging is pretty slow, and none of the
        // internal component options needs special treatment.
        initInternalComponent(vm, options);
      } else {
        vm.$options = mergeOptions(
          resolveConstructorOptions(vm.constructor),
          options || {},
          vm
        );
      }
      /* istanbul ignore else */
      if (true) {
        initProxy(vm);
      } else {}
      // expose real self
      vm._self = vm;
      initLifecycle(vm);
      initEvents(vm);
      initRender(vm);
      callHook(vm, 'beforeCreate');
      initInjections(vm); // resolve injections before data/props
      initState(vm);
      initProvide(vm); // resolve provide after data/props
      callHook(vm, 'created');
  
      /* istanbul ignore if */
      if ( true && config.performance && mark) {
        vm._name = formatComponentName(vm, false);
        mark(endTag);
        measure(("vue " + (vm._name) + " init"), startTag, endTag);
      }
  
      if (vm.$options.el) {
        vm.$mount(vm.$options.el);
      }
    };
  }
  
  function initInternalComponent (vm, options) {
    var opts = vm.$options = Object.create(vm.constructor.options);
    // doing this because it's faster than dynamic enumeration.
    var parentVnode = options._parentVnode;
    opts.parent = options.parent;
    opts._parentVnode = parentVnode;
  
    var vnodeComponentOptions = parentVnode.componentOptions;
    opts.propsData = vnodeComponentOptions.propsData;
    opts._parentListeners = vnodeComponentOptions.listeners;
    opts._renderChildren = vnodeComponentOptions.children;
    opts._componentTag = vnodeComponentOptions.tag;
  
    if (options.render) {
      opts.render = options.render;
      opts.staticRenderFns = options.staticRenderFns;
    }
  }
  
  function resolveConstructorOptions (Ctor) {
    var options = Ctor.options;
    if (Ctor.super) {
      var superOptions = resolveConstructorOptions(Ctor.super);
      var cachedSuperOptions = Ctor.superOptions;
      if (superOptions !== cachedSuperOptions) {
        // super option changed,
        // need to resolve new options.
        Ctor.superOptions = superOptions;
        // check if there are any late-modified/attached options (#4976)
        var modifiedOptions = resolveModifiedOptions(Ctor);
        // update base extend options
        if (modifiedOptions) {
          extend(Ctor.extendOptions, modifiedOptions);
        }
        options = Ctor.options = mergeOptions(superOptions, Ctor.extendOptions);
        if (options.name) {
          options.components[options.name] = Ctor;
        }
      }
    }
    return options
  }
  
  function resolveModifiedOptions (Ctor) {
    var modified;
    var latest = Ctor.options;
    var sealed = Ctor.sealedOptions;
    for (var key in latest) {
      if (latest[key] !== sealed[key]) {
        if (!modified) { modified = {}; }
        modified[key] = latest[key];
      }
    }
    return modified
  }
  
  function Vue (options) {
    if ( true &&
      !(this instanceof Vue)
    ) {
      warn('Vue is a constructor and should be called with the `new` keyword');
    }
    this._init(options);
  }
  
  initMixin(Vue);
  stateMixin(Vue);
  eventsMixin(Vue);
  lifecycleMixin(Vue);
  renderMixin(Vue);
  
  /*  */
  
  function initUse (Vue) {
    Vue.use = function (plugin) {
      var installedPlugins = (this._installedPlugins || (this._installedPlugins = []));
      if (installedPlugins.indexOf(plugin) > -1) {
        return this
      }
  
      // additional parameters
      var args = toArray(arguments, 1);
      args.unshift(this);
      if (typeof plugin.install === 'function') {
        plugin.install.apply(plugin, args);
      } else if (typeof plugin === 'function') {
        plugin.apply(null, args);
      }
      installedPlugins.push(plugin);
      return this
    };
  }
  
  /*  */
  
  function initMixin$1 (Vue) {
    Vue.mixin = function (mixin) {
      this.options = mergeOptions(this.options, mixin);
      return this
    };
  }
  
  /*  */
  
  function initExtend (Vue) {
    /**
     * Each instance constructor, including Vue, has a unique
     * cid. This enables us to create wrapped "child
     * constructors" for prototypal inheritance and cache them.
     */
    Vue.cid = 0;
    var cid = 1;
  
    /**
     * Class inheritance
     */
    Vue.extend = function (extendOptions) {
      extendOptions = extendOptions || {};
      var Super = this;
      var SuperId = Super.cid;
      var cachedCtors = extendOptions._Ctor || (extendOptions._Ctor = {});
      if (cachedCtors[SuperId]) {
        return cachedCtors[SuperId]
      }
  
      var name = extendOptions.name || Super.options.name;
      if ( true && name) {
        validateComponentName(name);
      }
  
      var Sub = function VueComponent (options) {
        this._init(options);
      };
      Sub.prototype = Object.create(Super.prototype);
      Sub.prototype.constructor = Sub;
      Sub.cid = cid++;
      Sub.options = mergeOptions(
        Super.options,
        extendOptions
      );
      Sub['super'] = Super;
  
      // For props and computed properties, we define the proxy getters on
      // the Vue instances at extension time, on the extended prototype. This
      // avoids Object.defineProperty calls for each instance created.
      if (Sub.options.props) {
        initProps$1(Sub);
      }
      if (Sub.options.computed) {
        initComputed$1(Sub);
      }
  
      // allow further extension/mixin/plugin usage
      Sub.extend = Super.extend;
      Sub.mixin = Super.mixin;
      Sub.use = Super.use;
  
      // create asset registers, so extended classes
      // can have their private assets too.
      ASSET_TYPES.forEach(function (type) {
        Sub[type] = Super[type];
      });
      // enable recursive self-lookup
      if (name) {
        Sub.options.components[name] = Sub;
      }
  
      // keep a reference to the super options at extension time.
      // later at instantiation we can check if Super's options have
      // been updated.
      Sub.superOptions = Super.options;
      Sub.extendOptions = extendOptions;
      Sub.sealedOptions = extend({}, Sub.options);
  
      // cache constructor
      cachedCtors[SuperId] = Sub;
      return Sub
    };
  }
  
  function initProps$1 (Comp) {
    var props = Comp.options.props;
    for (var key in props) {
      proxy(Comp.prototype, "_props", key);
    }
  }
  
  function initComputed$1 (Comp) {
    var computed = Comp.options.computed;
    for (var key in computed) {
      defineComputed(Comp.prototype, key, computed[key]);
    }
  }
  
  /*  */
  
  function initAssetRegisters (Vue) {
    /**
     * Create asset registration methods.
     */
    ASSET_TYPES.forEach(function (type) {
      Vue[type] = function (
        id,
        definition
      ) {
        if (!definition) {
          return this.options[type + 's'][id]
        } else {
          /* istanbul ignore if */
          if ( true && type === 'component') {
            validateComponentName(id);
          }
          if (type === 'component' && isPlainObject(definition)) {
            definition.name = definition.name || id;
            definition = this.options._base.extend(definition);
          }
          if (type === 'directive' && typeof definition === 'function') {
            definition = { bind: definition, update: definition };
          }
          this.options[type + 's'][id] = definition;
          return definition
        }
      };
    });
  }
  
  /*  */
  
  
  
  
  
  function getComponentName (opts) {
    return opts && (opts.Ctor.options.name || opts.tag)
  }
  
  function matches (pattern, name) {
    if (Array.isArray(pattern)) {
      return pattern.indexOf(name) > -1
    } else if (typeof pattern === 'string') {
      return pattern.split(',').indexOf(name) > -1
    } else if (isRegExp(pattern)) {
      return pattern.test(name)
    }
    /* istanbul ignore next */
    return false
  }
  
  function pruneCache (keepAliveInstance, filter) {
    var cache = keepAliveInstance.cache;
    var keys = keepAliveInstance.keys;
    var _vnode = keepAliveInstance._vnode;
    for (var key in cache) {
      var entry = cache[key];
      if (entry) {
        var name = entry.name;
        if (name && !filter(name)) {
          pruneCacheEntry(cache, key, keys, _vnode);
        }
      }
    }
  }
  
  function pruneCacheEntry (
    cache,
    key,
    keys,
    current
  ) {
    var entry = cache[key];
    if (entry && (!current || entry.tag !== current.tag)) {
      entry.componentInstance.$destroy();
    }
    cache[key] = null;
    remove(keys, key);
  }
  
  var patternTypes = [String, RegExp, Array];
  
  var KeepAlive = {
    name: 'keep-alive',
    abstract: true,
  
    props: {
      include: patternTypes,
      exclude: patternTypes,
      max: [String, Number]
    },
  
    methods: {
      cacheVNode: function cacheVNode() {
        var ref = this;
        var cache = ref.cache;
        var keys = ref.keys;
        var vnodeToCache = ref.vnodeToCache;
        var keyToCache = ref.keyToCache;
        if (vnodeToCache) {
          var tag = vnodeToCache.tag;
          var componentInstance = vnodeToCache.componentInstance;
          var componentOptions = vnodeToCache.componentOptions;
          cache[keyToCache] = {
            name: getComponentName(componentOptions),
            tag: tag,
            componentInstance: componentInstance,
          };
          keys.push(keyToCache);
          // prune oldest entry
          if (this.max && keys.length > parseInt(this.max)) {
            pruneCacheEntry(cache, keys[0], keys, this._vnode);
          }
          this.vnodeToCache = null;
        }
      }
    },
  
    created: function created () {
      this.cache = Object.create(null);
      this.keys = [];
    },
  
    destroyed: function destroyed () {
      for (var key in this.cache) {
        pruneCacheEntry(this.cache, key, this.keys);
      }
    },
  
    mounted: function mounted () {
      var this$1 = this;
  
      this.cacheVNode();
      this.$watch('include', function (val) {
        pruneCache(this$1, function (name) { return matches(val, name); });
      });
      this.$watch('exclude', function (val) {
        pruneCache(this$1, function (name) { return !matches(val, name); });
      });
    },
  
    updated: function updated () {
      this.cacheVNode();
    },
  
    render: function render () {
      var slot = this.$slots.default;
      var vnode = getFirstComponentChild(slot);
      var componentOptions = vnode && vnode.componentOptions;
      if (componentOptions) {
        // check pattern
        var name = getComponentName(componentOptions);
        var ref = this;
        var include = ref.include;
        var exclude = ref.exclude;
        if (
          // not included
          (include && (!name || !matches(include, name))) ||
          // excluded
          (exclude && name && matches(exclude, name))
        ) {
          return vnode
        }
  
        var ref$1 = this;
        var cache = ref$1.cache;
        var keys = ref$1.keys;
        var key = vnode.key == null
          // same constructor may get registered as different local components
          // so cid alone is not enough (#3269)
          ? componentOptions.Ctor.cid + (componentOptions.tag ? ("::" + (componentOptions.tag)) : '')
          : vnode.key;
        if (cache[key]) {
          vnode.componentInstance = cache[key].componentInstance;
          // make current key freshest
          remove(keys, key);
          keys.push(key);
        } else {
          // delay setting the cache until update
          this.vnodeToCache = vnode;
          this.keyToCache = key;
        }
  
        vnode.data.keepAlive = true;
      }
      return vnode || (slot && slot[0])
    }
  };
  
  var builtInComponents = {
    KeepAlive: KeepAlive
  };
  
  /*  */
  
  function initGlobalAPI (Vue) {
    // config
    var configDef = {};
    configDef.get = function () { return config; };
    if (true) {
      configDef.set = function () {
        warn(
          'Do not replace the Vue.config object, set individual fields instead.'
        );
      };
    }
    Object.defineProperty(Vue, 'config', configDef);
  
    // exposed util methods.
    // NOTE: these are not considered part of the public API - avoid relying on
    // them unless you are aware of the risk.
    Vue.util = {
      warn: warn,
      extend: extend,
      mergeOptions: mergeOptions,
      defineReactive: defineReactive$$1
    };
  
    Vue.set = set;
    Vue.delete = del;
    Vue.nextTick = nextTick;
  
    // 2.6 explicit observable API
    Vue.observable = function (obj) {
      observe(obj);
      return obj
    };
  
    Vue.options = Object.create(null);
    ASSET_TYPES.forEach(function (type) {
      Vue.options[type + 's'] = Object.create(null);
    });
  
    // this is used to identify the "base" constructor to extend all plain-object
    // components with in Weex's multi-instance scenarios.
    Vue.options._base = Vue;
  
    extend(Vue.options.components, builtInComponents);
  
    initUse(Vue);
    initMixin$1(Vue);
    initExtend(Vue);
    initAssetRegisters(Vue);
  }
  
  initGlobalAPI(Vue);
  
  Object.defineProperty(Vue.prototype, '$isServer', {
    get: isServerRendering
  });
  
  Object.defineProperty(Vue.prototype, '$ssrContext', {
    get: function get () {
      /* istanbul ignore next */
      return this.$vnode && this.$vnode.ssrContext
    }
  });
  
  // expose FunctionalRenderContext for ssr runtime helper installation
  Object.defineProperty(Vue, 'FunctionalRenderContext', {
    value: FunctionalRenderContext
  });
  
  Vue.version = '2.6.14';
  
  /*  */
  
  // these are reserved for web because they are directly compiled away
  // during template compilation
  var isReservedAttr = makeMap('style,class');
  
  // attributes that should be using props for binding
  var acceptValue = makeMap('input,textarea,option,select,progress');
  var mustUseProp = function (tag, type, attr) {
    return (
      (attr === 'value' && acceptValue(tag)) && type !== 'button' ||
      (attr === 'selected' && tag === 'option') ||
      (attr === 'checked' && tag === 'input') ||
      (attr === 'muted' && tag === 'video')
    )
  };
  
  var isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
  
  var isValidContentEditableValue = makeMap('events,caret,typing,plaintext-only');
  
  var convertEnumeratedValue = function (key, value) {
    return isFalsyAttrValue(value) || value === 'false'
      ? 'false'
      // allow arbitrary string value for contenteditable
      : key === 'contenteditable' && isValidContentEditableValue(value)
        ? value
        : 'true'
  };
  
  var isBooleanAttr = makeMap(
    'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
    'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
    'enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,' +
    'muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,' +
    'required,reversed,scoped,seamless,selected,sortable,' +
    'truespeed,typemustmatch,visible'
  );
  
  var xlinkNS = 'http://www.w3.org/1999/xlink';
  
  var isXlink = function (name) {
    return name.charAt(5) === ':' && name.slice(0, 5) === 'xlink'
  };
  
  var getXlinkProp = function (name) {
    return isXlink(name) ? name.slice(6, name.length) : ''
  };
  
  var isFalsyAttrValue = function (val) {
    return val == null || val === false
  };
  
  /*  */
  
  function genClassForVnode (vnode) {
    var data = vnode.data;
    var parentNode = vnode;
    var childNode = vnode;
    while (isDef(childNode.componentInstance)) {
      childNode = childNode.componentInstance._vnode;
      if (childNode && childNode.data) {
        data = mergeClassData(childNode.data, data);
      }
    }
    while (isDef(parentNode = parentNode.parent)) {
      if (parentNode && parentNode.data) {
        data = mergeClassData(data, parentNode.data);
      }
    }
    return renderClass(data.staticClass, data.class)
  }
  
  function mergeClassData (child, parent) {
    return {
      staticClass: concat(child.staticClass, parent.staticClass),
      class: isDef(child.class)
        ? [child.class, parent.class]
        : parent.class
    }
  }
  
  function renderClass (
    staticClass,
    dynamicClass
  ) {
    if (isDef(staticClass) || isDef(dynamicClass)) {
      return concat(staticClass, stringifyClass(dynamicClass))
    }
    /* istanbul ignore next */
    return ''
  }
  
  function concat (a, b) {
    return a ? b ? (a + ' ' + b) : a : (b || '')
  }
  
  function stringifyClass (value) {
    if (Array.isArray(value)) {
      return stringifyArray(value)
    }
    if (isObject(value)) {
      return stringifyObject(value)
    }
    if (typeof value === 'string') {
      return value
    }
    /* istanbul ignore next */
    return ''
  }
  
  function stringifyArray (value) {
    var res = '';
    var stringified;
    for (var i = 0, l = value.length; i < l; i++) {
      if (isDef(stringified = stringifyClass(value[i])) && stringified !== '') {
        if (res) { res += ' '; }
        res += stringified;
      }
    }
    return res
  }
  
  function stringifyObject (value) {
    var res = '';
    for (var key in value) {
      if (value[key]) {
        if (res) { res += ' '; }
        res += key;
      }
    }
    return res
  }
  
  /*  */
  
  var namespaceMap = {
    svg: 'http://www.w3.org/2000/svg',
    math: 'http://www.w3.org/1998/Math/MathML'
  };
  
  var isHTMLTag = makeMap(
    'html,body,base,head,link,meta,style,title,' +
    'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' +
    'div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,' +
    'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' +
    's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,' +
    'embed,object,param,source,canvas,script,noscript,del,ins,' +
    'caption,col,colgroup,table,thead,tbody,td,th,tr,' +
    'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' +
    'output,progress,select,textarea,' +
    'details,dialog,menu,menuitem,summary,' +
    'content,element,shadow,template,blockquote,iframe,tfoot'
  );
  
  // this map is intentionally selective, only covering SVG elements that may
  // contain child elements.
  var isSVG = makeMap(
    'svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,' +
    'foreignobject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,' +
    'polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view',
    true
  );
  
  var isPreTag = function (tag) { return tag === 'pre'; };
  
  var isReservedTag = function (tag) {
    return isHTMLTag(tag) || isSVG(tag)
  };
  
  function getTagNamespace (tag) {
    if (isSVG(tag)) {
      return 'svg'
    }
    // basic support for MathML
    // note it doesn't support other MathML elements being component roots
    if (tag === 'math') {
      return 'math'
    }
  }
  
  var unknownElementCache = Object.create(null);
  function isUnknownElement (tag) {
    /* istanbul ignore if */
    if (!inBrowser) {
      return true
    }
    if (isReservedTag(tag)) {
      return false
    }
    tag = tag.toLowerCase();
    /* istanbul ignore if */
    if (unknownElementCache[tag] != null) {
      return unknownElementCache[tag]
    }
    var el = document.createElement(tag);
    if (tag.indexOf('-') > -1) {
      // http://stackoverflow.com/a/28210364/1070244
      return (unknownElementCache[tag] = (
        el.constructor === window.HTMLUnknownElement ||
        el.constructor === window.HTMLElement
      ))
    } else {
      return (unknownElementCache[tag] = /HTMLUnknownElement/.test(el.toString()))
    }
  }
  
  var isTextInputType = makeMap('text,number,password,search,email,tel,url');
  
  /*  */
  
  /**
   * Query an element selector if it's not an element already.
   */
  function query (el) {
    if (typeof el === 'string') {
      var selected = document.querySelector(el);
      if (!selected) {
         true && warn(
          'Cannot find element: ' + el
        );
        return document.createElement('div')
      }
      return selected
    } else {
      return el
    }
  }
  
  /*  */
  
  function createElement$1 (tagName, vnode) {
    var elm = document.createElement(tagName);
    if (tagName !== 'select') {
      return elm
    }
    // false or null will remove the attribute but undefined will not
    if (vnode.data && vnode.data.attrs && vnode.data.attrs.multiple !== undefined) {
      elm.setAttribute('multiple', 'multiple');
    }
    return elm
  }
  
  function createElementNS (namespace, tagName) {
    return document.createElementNS(namespaceMap[namespace], tagName)
  }
  
  function createTextNode (text) {
    return document.createTextNode(text)
  }
  
  function createComment (text) {
    return document.createComment(text)
  }
  
  function insertBefore (parentNode, newNode, referenceNode) {
    parentNode.insertBefore(newNode, referenceNode);
  }
  
  function removeChild (node, child) {
    node.removeChild(child);
  }
  
  function appendChild (node, child) {
    node.appendChild(child);
  }
  
  function parentNode (node) {
    return node.parentNode
  }
  
  function nextSibling (node) {
    return node.nextSibling
  }
  
  function tagName (node) {
    return node.tagName
  }
  
  function setTextContent (node, text) {
    node.textContent = text;
  }
  
  function setStyleScope (node, scopeId) {
    node.setAttribute(scopeId, '');
  }
  
  var nodeOps = /*#__PURE__*/Object.freeze({
    createElement: createElement$1,
    createElementNS: createElementNS,
    createTextNode: createTextNode,
    createComment: createComment,
    insertBefore: insertBefore,
    removeChild: removeChild,
    appendChild: appendChild,
    parentNode: parentNode,
    nextSibling: nextSibling,
    tagName: tagName,
    setTextContent: setTextContent,
    setStyleScope: setStyleScope
  });
  
  /*  */
  
  var ref = {
    create: function create (_, vnode) {
      registerRef(vnode);
    },
    update: function update (oldVnode, vnode) {
      if (oldVnode.data.ref !== vnode.data.ref) {
        registerRef(oldVnode, true);
        registerRef(vnode);
      }
    },
    destroy: function destroy (vnode) {
      registerRef(vnode, true);
    }
  };
  
  function registerRef (vnode, isRemoval) {
    var key = vnode.data.ref;
    if (!isDef(key)) { return }
  
    var vm = vnode.context;
    var ref = vnode.componentInstance || vnode.elm;
    var refs = vm.$refs;
    if (isRemoval) {
      if (Array.isArray(refs[key])) {
        remove(refs[key], ref);
      } else if (refs[key] === ref) {
        refs[key] = undefined;
      }
    } else {
      if (vnode.data.refInFor) {
        if (!Array.isArray(refs[key])) {
          refs[key] = [ref];
        } else if (refs[key].indexOf(ref) < 0) {
          // $flow-disable-line
          refs[key].push(ref);
        }
      } else {
        refs[key] = ref;
      }
    }
  }
  
  /**
   * Virtual DOM patching algorithm based on Snabbdom by
   * Simon Friis Vindum (@paldepind)
   * Licensed under the MIT License
   * https://github.com/paldepind/snabbdom/blob/master/LICENSE
   *
   * modified by Evan You (@yyx990803)
   *
   * Not type-checking this because this file is perf-critical and the cost
   * of making flow understand it is not worth it.
   */
  
  var emptyNode = new VNode('', {}, []);
  
  var hooks = ['create', 'activate', 'update', 'remove', 'destroy'];
  
  function sameVnode (a, b) {
    return (
      a.key === b.key &&
      a.asyncFactory === b.asyncFactory && (
        (
          a.tag === b.tag &&
          a.isComment === b.isComment &&
          isDef(a.data) === isDef(b.data) &&
          sameInputType(a, b)
        ) || (
          isTrue(a.isAsyncPlaceholder) &&
          isUndef(b.asyncFactory.error)
        )
      )
    )
  }
  
  function sameInputType (a, b) {
    if (a.tag !== 'input') { return true }
    var i;
    var typeA = isDef(i = a.data) && isDef(i = i.attrs) && i.type;
    var typeB = isDef(i = b.data) && isDef(i = i.attrs) && i.type;
    return typeA === typeB || isTextInputType(typeA) && isTextInputType(typeB)
  }
  
  function createKeyToOldIdx (children, beginIdx, endIdx) {
    var i, key;
    var map = {};
    for (i = beginIdx; i <= endIdx; ++i) {
      key = children[i].key;
      if (isDef(key)) { map[key] = i; }
    }
    return map
  }
  
  function createPatchFunction (backend) {
    var i, j;
    var cbs = {};
  
    var modules = backend.modules;
    var nodeOps = backend.nodeOps;
  
    for (i = 0; i < hooks.length; ++i) {
      cbs[hooks[i]] = [];
      for (j = 0; j < modules.length; ++j) {
        if (isDef(modules[j][hooks[i]])) {
          cbs[hooks[i]].push(modules[j][hooks[i]]);
        }
      }
    }
  
    function emptyNodeAt (elm) {
      return new VNode(nodeOps.tagName(elm).toLowerCase(), {}, [], undefined, elm)
    }
  
    function createRmCb (childElm, listeners) {
      function remove$$1 () {
        if (--remove$$1.listeners === 0) {
          removeNode(childElm);
        }
      }
      remove$$1.listeners = listeners;
      return remove$$1
    }
  
    function removeNode (el) {
      var parent = nodeOps.parentNode(el);
      // element may have already been removed due to v-html / v-text
      if (isDef(parent)) {
        nodeOps.removeChild(parent, el);
      }
    }
  
    function isUnknownElement$$1 (vnode, inVPre) {
      return (
        !inVPre &&
        !vnode.ns &&
        !(
          config.ignoredElements.length &&
          config.ignoredElements.some(function (ignore) {
            return isRegExp(ignore)
              ? ignore.test(vnode.tag)
              : ignore === vnode.tag
          })
        ) &&
        config.isUnknownElement(vnode.tag)
      )
    }
  
    var creatingElmInVPre = 0;
  
    function createElm (
      vnode,
      insertedVnodeQueue,
      parentElm,
      refElm,
      nested,
      ownerArray,
      index
    ) {
      if (isDef(vnode.elm) && isDef(ownerArray)) {
        // This vnode was used in a previous render!
        // now it's used as a new node, overwriting its elm would cause
        // potential patch errors down the road when it's used as an insertion
        // reference node. Instead, we clone the node on-demand before creating
        // associated DOM element for it.
        vnode = ownerArray[index] = cloneVNode(vnode);
      }
  
      vnode.isRootInsert = !nested; // for transition enter check
      if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {
        return
      }
  
      var data = vnode.data;
      var children = vnode.children;
      var tag = vnode.tag;
      if (isDef(tag)) {
        if (true) {
          if (data && data.pre) {
            creatingElmInVPre++;
          }
          if (isUnknownElement$$1(vnode, creatingElmInVPre)) {
            warn(
              'Unknown custom element: <' + tag + '> - did you ' +
              'register the component correctly? For recursive components, ' +
              'make sure to provide the "name" option.',
              vnode.context
            );
          }
        }
  
        vnode.elm = vnode.ns
          ? nodeOps.createElementNS(vnode.ns, tag)
          : nodeOps.createElement(tag, vnode);
        setScope(vnode);
  
        /* istanbul ignore if */
        {
          createChildren(vnode, children, insertedVnodeQueue);
          if (isDef(data)) {
            invokeCreateHooks(vnode, insertedVnodeQueue);
          }
          insert(parentElm, vnode.elm, refElm);
        }
  
        if ( true && data && data.pre) {
          creatingElmInVPre--;
        }
      } else if (isTrue(vnode.isComment)) {
        vnode.elm = nodeOps.createComment(vnode.text);
        insert(parentElm, vnode.elm, refElm);
      } else {
        vnode.elm = nodeOps.createTextNode(vnode.text);
        insert(parentElm, vnode.elm, refElm);
      }
    }
  
    function createComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
      var i = vnode.data;
      if (isDef(i)) {
        var isReactivated = isDef(vnode.componentInstance) && i.keepAlive;
        if (isDef(i = i.hook) && isDef(i = i.init)) {
          i(vnode, false /* hydrating */);
        }
        // after calling the init hook, if the vnode is a child component
        // it should've created a child instance and mounted it. the child
        // component also has set the placeholder vnode's elm.
        // in that case we can just return the element and be done.
        if (isDef(vnode.componentInstance)) {
          initComponent(vnode, insertedVnodeQueue);
          insert(parentElm, vnode.elm, refElm);
          if (isTrue(isReactivated)) {
            reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm);
          }
          return true
        }
      }
    }
  
    function initComponent (vnode, insertedVnodeQueue) {
      if (isDef(vnode.data.pendingInsert)) {
        insertedVnodeQueue.push.apply(insertedVnodeQueue, vnode.data.pendingInsert);
        vnode.data.pendingInsert = null;
      }
      vnode.elm = vnode.componentInstance.$el;
      if (isPatchable(vnode)) {
        invokeCreateHooks(vnode, insertedVnodeQueue);
        setScope(vnode);
      } else {
        // empty component root.
        // skip all element-related modules except for ref (#3455)
        registerRef(vnode);
        // make sure to invoke the insert hook
        insertedVnodeQueue.push(vnode);
      }
    }
  
    function reactivateComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
      var i;
      // hack for #4339: a reactivated component with inner transition
      // does not trigger because the inner node's created hooks are not called
      // again. It's not ideal to involve module-specific logic in here but
      // there doesn't seem to be a better way to do it.
      var innerNode = vnode;
      while (innerNode.componentInstance) {
        innerNode = innerNode.componentInstance._vnode;
        if (isDef(i = innerNode.data) && isDef(i = i.transition)) {
          for (i = 0; i < cbs.activate.length; ++i) {
            cbs.activate[i](emptyNode, innerNode);
          }
          insertedVnodeQueue.push(innerNode);
          break
        }
      }
      // unlike a newly created component,
      // a reactivated keep-alive component doesn't insert itself
      insert(parentElm, vnode.elm, refElm);
    }
  
    function insert (parent, elm, ref$$1) {
      if (isDef(parent)) {
        if (isDef(ref$$1)) {
          if (nodeOps.parentNode(ref$$1) === parent) {
            nodeOps.insertBefore(parent, elm, ref$$1);
          }
        } else {
          nodeOps.appendChild(parent, elm);
        }
      }
    }
  
    function createChildren (vnode, children, insertedVnodeQueue) {
      if (Array.isArray(children)) {
        if (true) {
          checkDuplicateKeys(children);
        }
        for (var i = 0; i < children.length; ++i) {
          createElm(children[i], insertedVnodeQueue, vnode.elm, null, true, children, i);
        }
      } else if (isPrimitive(vnode.text)) {
        nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(String(vnode.text)));
      }
    }
  
    function isPatchable (vnode) {
      while (vnode.componentInstance) {
        vnode = vnode.componentInstance._vnode;
      }
      return isDef(vnode.tag)
    }
  
    function invokeCreateHooks (vnode, insertedVnodeQueue) {
      for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
        cbs.create[i$1](emptyNode, vnode);
      }
      i = vnode.data.hook; // Reuse variable
      if (isDef(i)) {
        if (isDef(i.create)) { i.create(emptyNode, vnode); }
        if (isDef(i.insert)) { insertedVnodeQueue.push(vnode); }
      }
    }
  
    // set scope id attribute for scoped CSS.
    // this is implemented as a special case to avoid the overhead
    // of going through the normal attribute patching process.
    function setScope (vnode) {
      var i;
      if (isDef(i = vnode.fnScopeId)) {
        nodeOps.setStyleScope(vnode.elm, i);
      } else {
        var ancestor = vnode;
        while (ancestor) {
          if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
            nodeOps.setStyleScope(vnode.elm, i);
          }
          ancestor = ancestor.parent;
        }
      }
      // for slot content they should also get the scopeId from the host instance.
      if (isDef(i = activeInstance) &&
        i !== vnode.context &&
        i !== vnode.fnContext &&
        isDef(i = i.$options._scopeId)
      ) {
        nodeOps.setStyleScope(vnode.elm, i);
      }
    }
  
    function addVnodes (parentElm, refElm, vnodes, startIdx, endIdx, insertedVnodeQueue) {
      for (; startIdx <= endIdx; ++startIdx) {
        createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm, false, vnodes, startIdx);
      }
    }
  
    function invokeDestroyHook (vnode) {
      var i, j;
      var data = vnode.data;
      if (isDef(data)) {
        if (isDef(i = data.hook) && isDef(i = i.destroy)) { i(vnode); }
        for (i = 0; i < cbs.destroy.length; ++i) { cbs.destroy[i](vnode); }
      }
      if (isDef(i = vnode.children)) {
        for (j = 0; j < vnode.children.length; ++j) {
          invokeDestroyHook(vnode.children[j]);
        }
      }
    }
  
    function removeVnodes (vnodes, startIdx, endIdx) {
      for (; startIdx <= endIdx; ++startIdx) {
        var ch = vnodes[startIdx];
        if (isDef(ch)) {
          if (isDef(ch.tag)) {
            removeAndInvokeRemoveHook(ch);
            invokeDestroyHook(ch);
          } else { // Text node
            removeNode(ch.elm);
          }
        }
      }
    }
  
    function removeAndInvokeRemoveHook (vnode, rm) {
      if (isDef(rm) || isDef(vnode.data)) {
        var i;
        var listeners = cbs.remove.length + 1;
        if (isDef(rm)) {
          // we have a recursively passed down rm callback
          // increase the listeners count
          rm.listeners += listeners;
        } else {
          // directly removing
          rm = createRmCb(vnode.elm, listeners);
        }
        // recursively invoke hooks on child component root node
        if (isDef(i = vnode.componentInstance) && isDef(i = i._vnode) && isDef(i.data)) {
          removeAndInvokeRemoveHook(i, rm);
        }
        for (i = 0; i < cbs.remove.length; ++i) {
          cbs.remove[i](vnode, rm);
        }
        if (isDef(i = vnode.data.hook) && isDef(i = i.remove)) {
          i(vnode, rm);
        } else {
          rm();
        }
      } else {
        removeNode(vnode.elm);
      }
    }
  
    function updateChildren (parentElm, oldCh, newCh, insertedVnodeQueue, removeOnly) {
      var oldStartIdx = 0;
      var newStartIdx = 0;
      var oldEndIdx = oldCh.length - 1;
      var oldStartVnode = oldCh[0];
      var oldEndVnode = oldCh[oldEndIdx];
      var newEndIdx = newCh.length - 1;
      var newStartVnode = newCh[0];
      var newEndVnode = newCh[newEndIdx];
      var oldKeyToIdx, idxInOld, vnodeToMove, refElm;
  
      // removeOnly is a special flag used only by <transition-group>
      // to ensure removed elements stay in correct relative positions
      // during leaving transitions
      var canMove = !removeOnly;
  
      if (true) {
        checkDuplicateKeys(newCh);
      }
  
      while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {
        if (isUndef(oldStartVnode)) {
          oldStartVnode = oldCh[++oldStartIdx]; // Vnode has been moved left
        } else if (isUndef(oldEndVnode)) {
          oldEndVnode = oldCh[--oldEndIdx];
        } else if (sameVnode(oldStartVnode, newStartVnode)) {
          patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
          oldStartVnode = oldCh[++oldStartIdx];
          newStartVnode = newCh[++newStartIdx];
        } else if (sameVnode(oldEndVnode, newEndVnode)) {
          patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
          oldEndVnode = oldCh[--oldEndIdx];
          newEndVnode = newCh[--newEndIdx];
        } else if (sameVnode(oldStartVnode, newEndVnode)) { // Vnode moved right
          patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
          canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm));
          oldStartVnode = oldCh[++oldStartIdx];
          newEndVnode = newCh[--newEndIdx];
        } else if (sameVnode(oldEndVnode, newStartVnode)) { // Vnode moved left
          patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
          canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm);
          oldEndVnode = oldCh[--oldEndIdx];
          newStartVnode = newCh[++newStartIdx];
        } else {
          if (isUndef(oldKeyToIdx)) { oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx); }
          idxInOld = isDef(newStartVnode.key)
            ? oldKeyToIdx[newStartVnode.key]
            : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx);
          if (isUndef(idxInOld)) { // New element
            createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
          } else {
            vnodeToMove = oldCh[idxInOld];
            if (sameVnode(vnodeToMove, newStartVnode)) {
              patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
              oldCh[idxInOld] = undefined;
              canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
            } else {
              // same key but different element. treat as new element
              createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
            }
          }
          newStartVnode = newCh[++newStartIdx];
        }
      }
      if (oldStartIdx > oldEndIdx) {
        refElm = isUndef(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1].elm;
        addVnodes(parentElm, refElm, newCh, newStartIdx, newEndIdx, insertedVnodeQueue);
      } else if (newStartIdx > newEndIdx) {
        removeVnodes(oldCh, oldStartIdx, oldEndIdx);
      }
    }
  
    function checkDuplicateKeys (children) {
      var seenKeys = {};
      for (var i = 0; i < children.length; i++) {
        var vnode = children[i];
        var key = vnode.key;
        if (isDef(key)) {
          if (seenKeys[key]) {
            warn(
              ("Duplicate keys detected: '" + key + "'. This may cause an update error."),
              vnode.context
            );
          } else {
            seenKeys[key] = true;
          }
        }
      }
    }
  
    function findIdxInOld (node, oldCh, start, end) {
      for (var i = start; i < end; i++) {
        var c = oldCh[i];
        if (isDef(c) && sameVnode(node, c)) { return i }
      }
    }
  
    function patchVnode (
      oldVnode,
      vnode,
      insertedVnodeQueue,
      ownerArray,
      index,
      removeOnly
    ) {
      if (oldVnode === vnode) {
        return
      }
  
      if (isDef(vnode.elm) && isDef(ownerArray)) {
        // clone reused vnode
        vnode = ownerArray[index] = cloneVNode(vnode);
      }
  
      var elm = vnode.elm = oldVnode.elm;
  
      if (isTrue(oldVnode.isAsyncPlaceholder)) {
        if (isDef(vnode.asyncFactory.resolved)) {
          hydrate(oldVnode.elm, vnode, insertedVnodeQueue);
        } else {
          vnode.isAsyncPlaceholder = true;
        }
        return
      }
  
      // reuse element for static trees.
      // note we only do this if the vnode is cloned -
      // if the new node is not cloned it means the render functions have been
      // reset by the hot-reload-api and we need to do a proper re-render.
      if (isTrue(vnode.isStatic) &&
        isTrue(oldVnode.isStatic) &&
        vnode.key === oldVnode.key &&
        (isTrue(vnode.isCloned) || isTrue(vnode.isOnce))
      ) {
        vnode.componentInstance = oldVnode.componentInstance;
        return
      }
  
      var i;
      var data = vnode.data;
      if (isDef(data) && isDef(i = data.hook) && isDef(i = i.prepatch)) {
        i(oldVnode, vnode);
      }
  
      var oldCh = oldVnode.children;
      var ch = vnode.children;
      if (isDef(data) && isPatchable(vnode)) {
        for (i = 0; i < cbs.update.length; ++i) { cbs.update[i](oldVnode, vnode); }
        if (isDef(i = data.hook) && isDef(i = i.update)) { i(oldVnode, vnode); }
      }
      if (isUndef(vnode.text)) {
        if (isDef(oldCh) && isDef(ch)) {
          if (oldCh !== ch) { updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly); }
        } else if (isDef(ch)) {
          if (true) {
            checkDuplicateKeys(ch);
          }
          if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); }
          addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
        } else if (isDef(oldCh)) {
          removeVnodes(oldCh, 0, oldCh.length - 1);
        } else if (isDef(oldVnode.text)) {
          nodeOps.setTextContent(elm, '');
        }
      } else if (oldVnode.text !== vnode.text) {
        nodeOps.setTextContent(elm, vnode.text);
      }
      if (isDef(data)) {
        if (isDef(i = data.hook) && isDef(i = i.postpatch)) { i(oldVnode, vnode); }
      }
    }
  
    function invokeInsertHook (vnode, queue, initial) {
      // delay insert hooks for component root nodes, invoke them after the
      // element is really inserted
      if (isTrue(initial) && isDef(vnode.parent)) {
        vnode.parent.data.pendingInsert = queue;
      } else {
        for (var i = 0; i < queue.length; ++i) {
          queue[i].data.hook.insert(queue[i]);
        }
      }
    }
  
    var hydrationBailed = false;
    // list of modules that can skip create hook during hydration because they
    // are already rendered on the client or has no need for initialization
    // Note: style is excluded because it relies on initial clone for future
    // deep updates (#7063).
    var isRenderedModule = makeMap('attrs,class,staticClass,staticStyle,key');
  
    // Note: this is a browser-only function so we can assume elms are DOM nodes.
    function hydrate (elm, vnode, insertedVnodeQueue, inVPre) {
      var i;
      var tag = vnode.tag;
      var data = vnode.data;
      var children = vnode.children;
      inVPre = inVPre || (data && data.pre);
      vnode.elm = elm;
  
      if (isTrue(vnode.isComment) && isDef(vnode.asyncFactory)) {
        vnode.isAsyncPlaceholder = true;
        return true
      }
      // assert node match
      if (true) {
        if (!assertNodeMatch(elm, vnode, inVPre)) {
          return false
        }
      }
      if (isDef(data)) {
        if (isDef(i = data.hook) && isDef(i = i.init)) { i(vnode, true /* hydrating */); }
        if (isDef(i = vnode.componentInstance)) {
          // child component. it should have hydrated its own tree.
          initComponent(vnode, insertedVnodeQueue);
          return true
        }
      }
      if (isDef(tag)) {
        if (isDef(children)) {
          // empty element, allow client to pick up and populate children
          if (!elm.hasChildNodes()) {
            createChildren(vnode, children, insertedVnodeQueue);
          } else {
            // v-html and domProps: innerHTML
            if (isDef(i = data) && isDef(i = i.domProps) && isDef(i = i.innerHTML)) {
              if (i !== elm.innerHTML) {
                /* istanbul ignore if */
                if ( true &&
                  typeof console !== 'undefined' &&
                  !hydrationBailed
                ) {
                  hydrationBailed = true;
                  console.warn('Parent: ', elm);
                  console.warn('server innerHTML: ', i);
                  console.warn('client innerHTML: ', elm.innerHTML);
                }
                return false
              }
            } else {
              // iterate and compare children lists
              var childrenMatch = true;
              var childNode = elm.firstChild;
              for (var i$1 = 0; i$1 < children.length; i$1++) {
                if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue, inVPre)) {
                  childrenMatch = false;
                  break
                }
                childNode = childNode.nextSibling;
              }
              // if childNode is not null, it means the actual childNodes list is
              // longer than the virtual children list.
              if (!childrenMatch || childNode) {
                /* istanbul ignore if */
                if ( true &&
                  typeof console !== 'undefined' &&
                  !hydrationBailed
                ) {
                  hydrationBailed = true;
                  console.warn('Parent: ', elm);
                  console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
                }
                return false
              }
            }
          }
        }
        if (isDef(data)) {
          var fullInvoke = false;
          for (var key in data) {
            if (!isRenderedModule(key)) {
              fullInvoke = true;
              invokeCreateHooks(vnode, insertedVnodeQueue);
              break
            }
          }
          if (!fullInvoke && data['class']) {
            // ensure collecting deps for deep class bindings for future updates
            traverse(data['class']);
          }
        }
      } else if (elm.data !== vnode.text) {
        elm.data = vnode.text;
      }
      return true
    }
  
    function assertNodeMatch (node, vnode, inVPre) {
      if (isDef(vnode.tag)) {
        return vnode.tag.indexOf('vue-component') === 0 || (
          !isUnknownElement$$1(vnode, inVPre) &&
          vnode.tag.toLowerCase() === (node.tagName && node.tagName.toLowerCase())
        )
      } else {
        return node.nodeType === (vnode.isComment ? 8 : 3)
      }
    }
  
    return function patch (oldVnode, vnode, hydrating, removeOnly) {
      if (isUndef(vnode)) {
        if (isDef(oldVnode)) { invokeDestroyHook(oldVnode); }
        return
      }
  
      var isInitialPatch = false;
      var insertedVnodeQueue = [];
  
      if (isUndef(oldVnode)) {
        // empty mount (likely as component), create new root element
        isInitialPatch = true;
        createElm(vnode, insertedVnodeQueue);
      } else {
        var isRealElement = isDef(oldVnode.nodeType);
        if (!isRealElement && sameVnode(oldVnode, vnode)) {
          // patch existing root node
          patchVnode(oldVnode, vnode, insertedVnodeQueue, null, null, removeOnly);
        } else {
          if (isRealElement) {
            // mounting to a real element
            // check if this is server-rendered content and if we can perform
            // a successful hydration.
            if (oldVnode.nodeType === 1 && oldVnode.hasAttribute(SSR_ATTR)) {
              oldVnode.removeAttribute(SSR_ATTR);
              hydrating = true;
            }
            if (isTrue(hydrating)) {
              if (hydrate(oldVnode, vnode, insertedVnodeQueue)) {
                invokeInsertHook(vnode, insertedVnodeQueue, true);
                return oldVnode
              } else if (true) {
                warn(
                  'The client-side rendered virtual DOM tree is not matching ' +
                  'server-rendered content. This is likely caused by incorrect ' +
                  'HTML markup, for example nesting block-level elements inside ' +
                  '<p>, or missing <tbody>. Bailing hydration and performing ' +
                  'full client-side render.'
                );
              }
            }
            // either not server-rendered, or hydration failed.
            // create an empty node and replace it
            oldVnode = emptyNodeAt(oldVnode);
          }
  
          // replacing existing element
          var oldElm = oldVnode.elm;
          var parentElm = nodeOps.parentNode(oldElm);
  
          // create new node
          createElm(
            vnode,
            insertedVnodeQueue,
            // extremely rare edge case: do not insert if old element is in a
            // leaving transition. Only happens when combining transition +
            // keep-alive + HOCs. (#4590)
            oldElm._leaveCb ? null : parentElm,
            nodeOps.nextSibling(oldElm)
          );
  
          // update parent placeholder node element, recursively
          if (isDef(vnode.parent)) {
            var ancestor = vnode.parent;
            var patchable = isPatchable(vnode);
            while (ancestor) {
              for (var i = 0; i < cbs.destroy.length; ++i) {
                cbs.destroy[i](ancestor);
              }
              ancestor.elm = vnode.elm;
              if (patchable) {
                for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
                  cbs.create[i$1](emptyNode, ancestor);
                }
                // #6513
                // invoke insert hooks that may have been merged by create hooks.
                // e.g. for directives that uses the "inserted" hook.
                var insert = ancestor.data.hook.insert;
                if (insert.merged) {
                  // start at index 1 to avoid re-invoking component mounted hook
                  for (var i$2 = 1; i$2 < insert.fns.length; i$2++) {
                    insert.fns[i$2]();
                  }
                }
              } else {
                registerRef(ancestor);
              }
              ancestor = ancestor.parent;
            }
          }
  
          // destroy old node
          if (isDef(parentElm)) {
            removeVnodes([oldVnode], 0, 0);
          } else if (isDef(oldVnode.tag)) {
            invokeDestroyHook(oldVnode);
          }
        }
      }
  
      invokeInsertHook(vnode, insertedVnodeQueue, isInitialPatch);
      return vnode.elm
    }
  }
  
  /*  */
  
  var directives = {
    create: updateDirectives,
    update: updateDirectives,
    destroy: function unbindDirectives (vnode) {
      updateDirectives(vnode, emptyNode);
    }
  };
  
  function updateDirectives (oldVnode, vnode) {
    if (oldVnode.data.directives || vnode.data.directives) {
      _update(oldVnode, vnode);
    }
  }
  
  function _update (oldVnode, vnode) {
    var isCreate = oldVnode === emptyNode;
    var isDestroy = vnode === emptyNode;
    var oldDirs = normalizeDirectives$1(oldVnode.data.directives, oldVnode.context);
    var newDirs = normalizeDirectives$1(vnode.data.directives, vnode.context);
  
    var dirsWithInsert = [];
    var dirsWithPostpatch = [];
  
    var key, oldDir, dir;
    for (key in newDirs) {
      oldDir = oldDirs[key];
      dir = newDirs[key];
      if (!oldDir) {
        // new directive, bind
        callHook$1(dir, 'bind', vnode, oldVnode);
        if (dir.def && dir.def.inserted) {
          dirsWithInsert.push(dir);
        }
      } else {
        // existing directive, update
        dir.oldValue = oldDir.value;
        dir.oldArg = oldDir.arg;
        callHook$1(dir, 'update', vnode, oldVnode);
        if (dir.def && dir.def.componentUpdated) {
          dirsWithPostpatch.push(dir);
        }
      }
    }
  
    if (dirsWithInsert.length) {
      var callInsert = function () {
        for (var i = 0; i < dirsWithInsert.length; i++) {
          callHook$1(dirsWithInsert[i], 'inserted', vnode, oldVnode);
        }
      };
      if (isCreate) {
        mergeVNodeHook(vnode, 'insert', callInsert);
      } else {
        callInsert();
      }
    }
  
    if (dirsWithPostpatch.length) {
      mergeVNodeHook(vnode, 'postpatch', function () {
        for (var i = 0; i < dirsWithPostpatch.length; i++) {
          callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);
        }
      });
    }
  
    if (!isCreate) {
      for (key in oldDirs) {
        if (!newDirs[key]) {
          // no longer present, unbind
          callHook$1(oldDirs[key], 'unbind', oldVnode, oldVnode, isDestroy);
        }
      }
    }
  }
  
  var emptyModifiers = Object.create(null);
  
  function normalizeDirectives$1 (
    dirs,
    vm
  ) {
    var res = Object.create(null);
    if (!dirs) {
      // $flow-disable-line
      return res
    }
    var i, dir;
    for (i = 0; i < dirs.length; i++) {
      dir = dirs[i];
      if (!dir.modifiers) {
        // $flow-disable-line
        dir.modifiers = emptyModifiers;
      }
      res[getRawDirName(dir)] = dir;
      dir.def = resolveAsset(vm.$options, 'directives', dir.name, true);
    }
    // $flow-disable-line
    return res
  }
  
  function getRawDirName (dir) {
    return dir.rawName || ((dir.name) + "." + (Object.keys(dir.modifiers || {}).join('.')))
  }
  
  function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {
    var fn = dir.def && dir.def[hook];
    if (fn) {
      try {
        fn(vnode.elm, dir, vnode, oldVnode, isDestroy);
      } catch (e) {
        handleError(e, vnode.context, ("directive " + (dir.name) + " " + hook + " hook"));
      }
    }
  }
  
  var baseModules = [
    ref,
    directives
  ];
  
  /*  */
  
  function updateAttrs (oldVnode, vnode) {
    var opts = vnode.componentOptions;
    if (isDef(opts) && opts.Ctor.options.inheritAttrs === false) {
      return
    }
    if (isUndef(oldVnode.data.attrs) && isUndef(vnode.data.attrs)) {
      return
    }
    var key, cur, old;
    var elm = vnode.elm;
    var oldAttrs = oldVnode.data.attrs || {};
    var attrs = vnode.data.attrs || {};
    // clone observed objects, as the user probably wants to mutate it
    if (isDef(attrs.__ob__)) {
      attrs = vnode.data.attrs = extend({}, attrs);
    }
  
    for (key in attrs) {
      cur = attrs[key];
      old = oldAttrs[key];
      if (old !== cur) {
        setAttr(elm, key, cur, vnode.data.pre);
      }
    }
    // #4391: in IE9, setting type can reset value for input[type=radio]
    // #6666: IE/Edge forces progress value down to 1 before setting a max
    /* istanbul ignore if */
    if ((isIE || isEdge) && attrs.value !== oldAttrs.value) {
      setAttr(elm, 'value', attrs.value);
    }
    for (key in oldAttrs) {
      if (isUndef(attrs[key])) {
        if (isXlink(key)) {
          elm.removeAttributeNS(xlinkNS, getXlinkProp(key));
        } else if (!isEnumeratedAttr(key)) {
          elm.removeAttribute(key);
        }
      }
    }
  }
  
  function setAttr (el, key, value, isInPre) {
    if (isInPre || el.tagName.indexOf('-') > -1) {
      baseSetAttr(el, key, value);
    } else if (isBooleanAttr(key)) {
      // set attribute for blank value
      // e.g. <option disabled>Select one</option>
      if (isFalsyAttrValue(value)) {
        el.removeAttribute(key);
      } else {
        // technically allowfullscreen is a boolean attribute for <iframe>,
        // but Flash expects a value of "true" when used on <embed> tag
        value = key === 'allowfullscreen' && el.tagName === 'EMBED'
          ? 'true'
          : key;
        el.setAttribute(key, value);
      }
    } else if (isEnumeratedAttr(key)) {
      el.setAttribute(key, convertEnumeratedValue(key, value));
    } else if (isXlink(key)) {
      if (isFalsyAttrValue(value)) {
        el.removeAttributeNS(xlinkNS, getXlinkProp(key));
      } else {
        el.setAttributeNS(xlinkNS, key, value);
      }
    } else {
      baseSetAttr(el, key, value);
    }
  }
  
  function baseSetAttr (el, key, value) {
    if (isFalsyAttrValue(value)) {
      el.removeAttribute(key);
    } else {
      // #7138: IE10 & 11 fires input event when setting placeholder on
      // <textarea>... block the first input event and remove the blocker
      // immediately.
      /* istanbul ignore if */
      if (
        isIE && !isIE9 &&
        el.tagName === 'TEXTAREA' &&
        key === 'placeholder' && value !== '' && !el.__ieph
      ) {
        var blocker = function (e) {
          e.stopImmediatePropagation();
          el.removeEventListener('input', blocker);
        };
        el.addEventListener('input', blocker);
        // $flow-disable-line
        el.__ieph = true; /* IE placeholder patched */
      }
      el.setAttribute(key, value);
    }
  }
  
  var attrs = {
    create: updateAttrs,
    update: updateAttrs
  };
  
  /*  */
  
  function updateClass (oldVnode, vnode) {
    var el = vnode.elm;
    var data = vnode.data;
    var oldData = oldVnode.data;
    if (
      isUndef(data.staticClass) &&
      isUndef(data.class) && (
        isUndef(oldData) || (
          isUndef(oldData.staticClass) &&
          isUndef(oldData.class)
        )
      )
    ) {
      return
    }
  
    var cls = genClassForVnode(vnode);
  
    // handle transition classes
    var transitionClass = el._transitionClasses;
    if (isDef(transitionClass)) {
      cls = concat(cls, stringifyClass(transitionClass));
    }
  
    // set the class
    if (cls !== el._prevClass) {
      el.setAttribute('class', cls);
      el._prevClass = cls;
    }
  }
  
  var klass = {
    create: updateClass,
    update: updateClass
  };
  
  /*  */
  
  var validDivisionCharRE = /[\w).+\-_$\]]/;
  
  function parseFilters (exp) {
    var inSingle = false;
    var inDouble = false;
    var inTemplateString = false;
    var inRegex = false;
    var curly = 0;
    var square = 0;
    var paren = 0;
    var lastFilterIndex = 0;
    var c, prev, i, expression, filters;
  
    for (i = 0; i < exp.length; i++) {
      prev = c;
      c = exp.charCodeAt(i);
      if (inSingle) {
        if (c === 0x27 && prev !== 0x5C) { inSingle = false; }
      } else if (inDouble) {
        if (c === 0x22 && prev !== 0x5C) { inDouble = false; }
      } else if (inTemplateString) {
        if (c === 0x60 && prev !== 0x5C) { inTemplateString = false; }
      } else if (inRegex) {
        if (c === 0x2f && prev !== 0x5C) { inRegex = false; }
      } else if (
        c === 0x7C && // pipe
        exp.charCodeAt(i + 1) !== 0x7C &&
        exp.charCodeAt(i - 1) !== 0x7C &&
        !curly && !square && !paren
      ) {
        if (expression === undefined) {
          // first filter, end of expression
          lastFilterIndex = i + 1;
          expression = exp.slice(0, i).trim();
        } else {
          pushFilter();
        }
      } else {
        switch (c) {
          case 0x22: inDouble = true; break         // "
          case 0x27: inSingle = true; break         // '
          case 0x60: inTemplateString = true; break // `
          case 0x28: paren++; break                 // (
          case 0x29: paren--; break                 // )
          case 0x5B: square++; break                // [
          case 0x5D: square--; break                // ]
          case 0x7B: curly++; break                 // {
          case 0x7D: curly--; break                 // }
        }
        if (c === 0x2f) { // /
          var j = i - 1;
          var p = (void 0);
          // find first non-whitespace prev char
          for (; j >= 0; j--) {
            p = exp.charAt(j);
            if (p !== ' ') { break }
          }
          if (!p || !validDivisionCharRE.test(p)) {
            inRegex = true;
          }
        }
      }
    }
  
    if (expression === undefined) {
      expression = exp.slice(0, i).trim();
    } else if (lastFilterIndex !== 0) {
      pushFilter();
    }
  
    function pushFilter () {
      (filters || (filters = [])).push(exp.slice(lastFilterIndex, i).trim());
      lastFilterIndex = i + 1;
    }
  
    if (filters) {
      for (i = 0; i < filters.length; i++) {
        expression = wrapFilter(expression, filters[i]);
      }
    }
  
    return expression
  }
  
  function wrapFilter (exp, filter) {
    var i = filter.indexOf('(');
    if (i < 0) {
      // _f: resolveFilter
      return ("_f(\"" + filter + "\")(" + exp + ")")
    } else {
      var name = filter.slice(0, i);
      var args = filter.slice(i + 1);
      return ("_f(\"" + name + "\")(" + exp + (args !== ')' ? ',' + args : args))
    }
  }
  
  /*  */
  
  
  
  /* eslint-disable no-unused-vars */
  function baseWarn (msg, range) {
    console.error(("[Vue compiler]: " + msg));
  }
  /* eslint-enable no-unused-vars */
  
  function pluckModuleFunction (
    modules,
    key
  ) {
    return modules
      ? modules.map(function (m) { return m[key]; }).filter(function (_) { return _; })
      : []
  }
  
  function addProp (el, name, value, range, dynamic) {
    (el.props || (el.props = [])).push(rangeSetItem({ name: name, value: value, dynamic: dynamic }, range));
    el.plain = false;
  }
  
  function addAttr (el, name, value, range, dynamic) {
    var attrs = dynamic
      ? (el.dynamicAttrs || (el.dynamicAttrs = []))
      : (el.attrs || (el.attrs = []));
    attrs.push(rangeSetItem({ name: name, value: value, dynamic: dynamic }, range));
    el.plain = false;
  }
  
  // add a raw attr (use this in preTransforms)
  function addRawAttr (el, name, value, range) {
    el.attrsMap[name] = value;
    el.attrsList.push(rangeSetItem({ name: name, value: value }, range));
  }
  
  function addDirective (
    el,
    name,
    rawName,
    value,
    arg,
    isDynamicArg,
    modifiers,
    range
  ) {
    (el.directives || (el.directives = [])).push(rangeSetItem({
      name: name,
      rawName: rawName,
      value: value,
      arg: arg,
      isDynamicArg: isDynamicArg,
      modifiers: modifiers
    }, range));
    el.plain = false;
  }
  
  function prependModifierMarker (symbol, name, dynamic) {
    return dynamic
      ? ("_p(" + name + ",\"" + symbol + "\")")
      : symbol + name // mark the event as captured
  }
  
  function addHandler (
    el,
    name,
    value,
    modifiers,
    important,
    warn,
    range,
    dynamic
  ) {
    modifiers = modifiers || emptyObject;
    // warn prevent and passive modifier
    /* istanbul ignore if */
    if (
       true && warn &&
      modifiers.prevent && modifiers.passive
    ) {
      warn(
        'passive and prevent can\'t be used together. ' +
        'Passive handler can\'t prevent default event.',
        range
      );
    }
  
    // normalize click.right and click.middle since they don't actually fire
    // this is technically browser-specific, but at least for now browsers are
    // the only target envs that have right/middle clicks.
    if (modifiers.right) {
      if (dynamic) {
        name = "(" + name + ")==='click'?'contextmenu':(" + name + ")";
      } else if (name === 'click') {
        name = 'contextmenu';
        delete modifiers.right;
      }
    } else if (modifiers.middle) {
      if (dynamic) {
        name = "(" + name + ")==='click'?'mouseup':(" + name + ")";
      } else if (name === 'click') {
        name = 'mouseup';
      }
    }
  
    // check capture modifier
    if (modifiers.capture) {
      delete modifiers.capture;
      name = prependModifierMarker('!', name, dynamic);
    }
    if (modifiers.once) {
      delete modifiers.once;
      name = prependModifierMarker('~', name, dynamic);
    }
    /* istanbul ignore if */
    if (modifiers.passive) {
      delete modifiers.passive;
      name = prependModifierMarker('&', name, dynamic);
    }
  
    var events;
    if (modifiers.native) {
      delete modifiers.native;
      events = el.nativeEvents || (el.nativeEvents = {});
    } else {
      events = el.events || (el.events = {});
    }
  
    var newHandler = rangeSetItem({ value: value.trim(), dynamic: dynamic }, range);
    if (modifiers !== emptyObject) {
      newHandler.modifiers = modifiers;
    }
  
    var handlers = events[name];
    /* istanbul ignore if */
    if (Array.isArray(handlers)) {
      important ? handlers.unshift(newHandler) : handlers.push(newHandler);
    } else if (handlers) {
      events[name] = important ? [newHandler, handlers] : [handlers, newHandler];
    } else {
      events[name] = newHandler;
    }
  
    el.plain = false;
  }
  
  function getRawBindingAttr (
    el,
    name
  ) {
    return el.rawAttrsMap[':' + name] ||
      el.rawAttrsMap['v-bind:' + name] ||
      el.rawAttrsMap[name]
  }
  
  function getBindingAttr (
    el,
    name,
    getStatic
  ) {
    var dynamicValue =
      getAndRemoveAttr(el, ':' + name) ||
      getAndRemoveAttr(el, 'v-bind:' + name);
    if (dynamicValue != null) {
      return parseFilters(dynamicValue)
    } else if (getStatic !== false) {
      var staticValue = getAndRemoveAttr(el, name);
      if (staticValue != null) {
        return JSON.stringify(staticValue)
      }
    }
  }
  
  // note: this only removes the attr from the Array (attrsList) so that it
  // doesn't get processed by processAttrs.
  // By default it does NOT remove it from the map (attrsMap) because the map is
  // needed during codegen.
  function getAndRemoveAttr (
    el,
    name,
    removeFromMap
  ) {
    var val;
    if ((val = el.attrsMap[name]) != null) {
      var list = el.attrsList;
      for (var i = 0, l = list.length; i < l; i++) {
        if (list[i].name === name) {
          list.splice(i, 1);
          break
        }
      }
    }
    if (removeFromMap) {
      delete el.attrsMap[name];
    }
    return val
  }
  
  function getAndRemoveAttrByRegex (
    el,
    name
  ) {
    var list = el.attrsList;
    for (var i = 0, l = list.length; i < l; i++) {
      var attr = list[i];
      if (name.test(attr.name)) {
        list.splice(i, 1);
        return attr
      }
    }
  }
  
  function rangeSetItem (
    item,
    range
  ) {
    if (range) {
      if (range.start != null) {
        item.start = range.start;
      }
      if (range.end != null) {
        item.end = range.end;
      }
    }
    return item
  }
  
  /*  */
  
  /**
   * Cross-platform code generation for component v-model
   */
  function genComponentModel (
    el,
    value,
    modifiers
  ) {
    var ref = modifiers || {};
    var number = ref.number;
    var trim = ref.trim;
  
    var baseValueExpression = '$$v';
    var valueExpression = baseValueExpression;
    if (trim) {
      valueExpression =
        "(typeof " + baseValueExpression + " === 'string'" +
        "? " + baseValueExpression + ".trim()" +
        ": " + baseValueExpression + ")";
    }
    if (number) {
      valueExpression = "_n(" + valueExpression + ")";
    }
    var assignment = genAssignmentCode(value, valueExpression);
  
    el.model = {
      value: ("(" + value + ")"),
      expression: JSON.stringify(value),
      callback: ("function (" + baseValueExpression + ") {" + assignment + "}")
    };
  }
  
  /**
   * Cross-platform codegen helper for generating v-model value assignment code.
   */
  function genAssignmentCode (
    value,
    assignment
  ) {
    var res = parseModel(value);
    if (res.key === null) {
      return (value + "=" + assignment)
    } else {
      return ("$set(" + (res.exp) + ", " + (res.key) + ", " + assignment + ")")
    }
  }
  
  /**
   * Parse a v-model expression into a base path and a final key segment.
   * Handles both dot-path and possible square brackets.
   *
   * Possible cases:
   *
   * - test
   * - test[key]
   * - test[test1[key]]
   * - test["a"][key]
   * - xxx.test[a[a].test1[key]]
   * - test.xxx.a["asa"][test1[key]]
   *
   */
  
  var len, str, chr, index$1, expressionPos, expressionEndPos;
  
  
  
  function parseModel (val) {
    // Fix https://github.com/vuejs/vue/pull/7730
    // allow v-model="obj.val " (trailing whitespace)
    val = val.trim();
    len = val.length;
  
    if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
      index$1 = val.lastIndexOf('.');
      if (index$1 > -1) {
        return {
          exp: val.slice(0, index$1),
          key: '"' + val.slice(index$1 + 1) + '"'
        }
      } else {
        return {
          exp: val,
          key: null
        }
      }
    }
  
    str = val;
    index$1 = expressionPos = expressionEndPos = 0;
  
    while (!eof()) {
      chr = next();
      /* istanbul ignore if */
      if (isStringStart(chr)) {
        parseString(chr);
      } else if (chr === 0x5B) {
        parseBracket(chr);
      }
    }
  
    return {
      exp: val.slice(0, expressionPos),
      key: val.slice(expressionPos + 1, expressionEndPos)
    }
  }
  
  function next () {
    return str.charCodeAt(++index$1)
  }
  
  function eof () {
    return index$1 >= len
  }
  
  function isStringStart (chr) {
    return chr === 0x22 || chr === 0x27
  }
  
  function parseBracket (chr) {
    var inBracket = 1;
    expressionPos = index$1;
    while (!eof()) {
      chr = next();
      if (isStringStart(chr)) {
        parseString(chr);
        continue
      }
      if (chr === 0x5B) { inBracket++; }
      if (chr === 0x5D) { inBracket--; }
      if (inBracket === 0) {
        expressionEndPos = index$1;
        break
      }
    }
  }
  
  function parseString (chr) {
    var stringQuote = chr;
    while (!eof()) {
      chr = next();
      if (chr === stringQuote) {
        break
      }
    }
  }
  
  /*  */
  
  var warn$1;
  
  // in some cases, the event used has to be determined at runtime
  // so we used some reserved tokens during compile.
  var RANGE_TOKEN = '__r';
  var CHECKBOX_RADIO_TOKEN = '__c';
  
  function model (
    el,
    dir,
    _warn
  ) {
    warn$1 = _warn;
    var value = dir.value;
    var modifiers = dir.modifiers;
    var tag = el.tag;
    var type = el.attrsMap.type;
  
    if (true) {
      // inputs with type="file" are read only and setting the input's
      // value will throw an error.
      if (tag === 'input' && type === 'file') {
        warn$1(
          "<" + (el.tag) + " v-model=\"" + value + "\" type=\"file\">:\n" +
          "File inputs are read only. Use a v-on:change listener instead.",
          el.rawAttrsMap['v-model']
        );
      }
    }
  
    if (el.component) {
      genComponentModel(el, value, modifiers);
      // component v-model doesn't need extra runtime
      return false
    } else if (tag === 'select') {
      genSelect(el, value, modifiers);
    } else if (tag === 'input' && type === 'checkbox') {
      genCheckboxModel(el, value, modifiers);
    } else if (tag === 'input' && type === 'radio') {
      genRadioModel(el, value, modifiers);
    } else if (tag === 'input' || tag === 'textarea') {
      genDefaultModel(el, value, modifiers);
    } else if (!config.isReservedTag(tag)) {
      genComponentModel(el, value, modifiers);
      // component v-model doesn't need extra runtime
      return false
    } else if (true) {
      warn$1(
        "<" + (el.tag) + " v-model=\"" + value + "\">: " +
        "v-model is not supported on this element type. " +
        'If you are working with contenteditable, it\'s recommended to ' +
        'wrap a library dedicated for that purpose inside a custom component.',
        el.rawAttrsMap['v-model']
      );
    }
  
    // ensure runtime directive metadata
    return true
  }
  
  function genCheckboxModel (
    el,
    value,
    modifiers
  ) {
    var number = modifiers && modifiers.number;
    var valueBinding = getBindingAttr(el, 'value') || 'null';
    var trueValueBinding = getBindingAttr(el, 'true-value') || 'true';
    var falseValueBinding = getBindingAttr(el, 'false-value') || 'false';
    addProp(el, 'checked',
      "Array.isArray(" + value + ")" +
      "?_i(" + value + "," + valueBinding + ")>-1" + (
        trueValueBinding === 'true'
          ? (":(" + value + ")")
          : (":_q(" + value + "," + trueValueBinding + ")")
      )
    );
    addHandler(el, 'change',
      "var $$a=" + value + "," +
          '$$el=$event.target,' +
          "$$c=$$el.checked?(" + trueValueBinding + "):(" + falseValueBinding + ");" +
      'if(Array.isArray($$a)){' +
        "var $$v=" + (number ? '_n(' + valueBinding + ')' : valueBinding) + "," +
            '$$i=_i($$a,$$v);' +
        "if($$el.checked){$$i<0&&(" + (genAssignmentCode(value, '$$a.concat([$$v])')) + ")}" +
        "else{$$i>-1&&(" + (genAssignmentCode(value, '$$a.slice(0,$$i).concat($$a.slice($$i+1))')) + ")}" +
      "}else{" + (genAssignmentCode(value, '$$c')) + "}",
      null, true
    );
  }
  
  function genRadioModel (
    el,
    value,
    modifiers
  ) {
    var number = modifiers && modifiers.number;
    var valueBinding = getBindingAttr(el, 'value') || 'null';
    valueBinding = number ? ("_n(" + valueBinding + ")") : valueBinding;
    addProp(el, 'checked', ("_q(" + value + "," + valueBinding + ")"));
    addHandler(el, 'change', genAssignmentCode(value, valueBinding), null, true);
  }
  
  function genSelect (
    el,
    value,
    modifiers
  ) {
    var number = modifiers && modifiers.number;
    var selectedVal = "Array.prototype.filter" +
      ".call($event.target.options,function(o){return o.selected})" +
      ".map(function(o){var val = \"_value\" in o ? o._value : o.value;" +
      "return " + (number ? '_n(val)' : 'val') + "})";
  
    var assignment = '$event.target.multiple ? $$selectedVal : $$selectedVal[0]';
    var code = "var $$selectedVal = " + selectedVal + ";";
    code = code + " " + (genAssignmentCode(value, assignment));
    addHandler(el, 'change', code, null, true);
  }
  
  function genDefaultModel (
    el,
    value,
    modifiers
  ) {
    var type = el.attrsMap.type;
  
    // warn if v-bind:value conflicts with v-model
    // except for inputs with v-bind:type
    if (true) {
      var value$1 = el.attrsMap['v-bind:value'] || el.attrsMap[':value'];
      var typeBinding = el.attrsMap['v-bind:type'] || el.attrsMap[':type'];
      if (value$1 && !typeBinding) {
        var binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
        warn$1(
          binding + "=\"" + value$1 + "\" conflicts with v-model on the same element " +
          'because the latter already expands to a value binding internally',
          el.rawAttrsMap[binding]
        );
      }
    }
  
    var ref = modifiers || {};
    var lazy = ref.lazy;
    var number = ref.number;
    var trim = ref.trim;
    var needCompositionGuard = !lazy && type !== 'range';
    var event = lazy
      ? 'change'
      : type === 'range'
        ? RANGE_TOKEN
        : 'input';
  
    var valueExpression = '$event.target.value';
    if (trim) {
      valueExpression = "$event.target.value.trim()";
    }
    if (number) {
      valueExpression = "_n(" + valueExpression + ")";
    }
  
    var code = genAssignmentCode(value, valueExpression);
    if (needCompositionGuard) {
      code = "if($event.target.composing)return;" + code;
    }
  
    addProp(el, 'value', ("(" + value + ")"));
    addHandler(el, event, code, null, true);
    if (trim || number) {
      addHandler(el, 'blur', '$forceUpdate()');
    }
  }
  
  /*  */
  
  // normalize v-model event tokens that can only be determined at runtime.
  // it's important to place the event as the first in the array because
  // the whole point is ensuring the v-model callback gets called before
  // user-attached handlers.
  function normalizeEvents (on) {
    /* istanbul ignore if */
    if (isDef(on[RANGE_TOKEN])) {
      // IE input[type=range] only supports `change` event
      var event = isIE ? 'change' : 'input';
      on[event] = [].concat(on[RANGE_TOKEN], on[event] || []);
      delete on[RANGE_TOKEN];
    }
    // This was originally intended to fix #4521 but no longer necessary
    // after 2.5. Keeping it for backwards compat with generated code from < 2.4
    /* istanbul ignore if */
    if (isDef(on[CHECKBOX_RADIO_TOKEN])) {
      on.change = [].concat(on[CHECKBOX_RADIO_TOKEN], on.change || []);
      delete on[CHECKBOX_RADIO_TOKEN];
    }
  }
  
  var target$1;
  
  function createOnceHandler$1 (event, handler, capture) {
    var _target = target$1; // save current target element in closure
    return function onceHandler () {
      var res = handler.apply(null, arguments);
      if (res !== null) {
        remove$2(event, onceHandler, capture, _target);
      }
    }
  }
  
  // #9446: Firefox <= 53 (in particular, ESR 52) has incorrect Event.timeStamp
  // implementation and does not fire microtasks in between event propagation, so
  // safe to exclude.
  var useMicrotaskFix = isUsingMicroTask && !(isFF && Number(isFF[1]) <= 53);
  
  function add$1 (
    name,
    handler,
    capture,
    passive
  ) {
    // async edge case #6566: inner click event triggers patch, event handler
    // attached to outer element during patch, and triggered again. This
    // happens because browsers fire microtask ticks between event propagation.
    // the solution is simple: we save the timestamp when a handler is attached,
    // and the handler would only fire if the event passed to it was fired
    // AFTER it was attached.
    if (useMicrotaskFix) {
      var attachedTimestamp = currentFlushTimestamp;
      var original = handler;
      handler = original._wrapper = function (e) {
        if (
          // no bubbling, should always fire.
          // this is just a safety net in case event.timeStamp is unreliable in
          // certain weird environments...
          e.target === e.currentTarget ||
          // event is fired after handler attachment
          e.timeStamp >= attachedTimestamp ||
          // bail for environments that have buggy event.timeStamp implementations
          // #9462 iOS 9 bug: event.timeStamp is 0 after history.pushState
          // #9681 QtWebEngine event.timeStamp is negative value
          e.timeStamp <= 0 ||
          // #9448 bail if event is fired in another document in a multi-page
          // electron/nw.js app, since event.timeStamp will be using a different
          // starting reference
          e.target.ownerDocument !== document
        ) {
          return original.apply(this, arguments)
        }
      };
    }
    target$1.addEventListener(
      name,
      handler,
      supportsPassive
        ? { capture: capture, passive: passive }
        : capture
    );
  }
  
  function remove$2 (
    name,
    handler,
    capture,
    _target
  ) {
    (_target || target$1).removeEventListener(
      name,
      handler._wrapper || handler,
      capture
    );
  }
  
  function updateDOMListeners (oldVnode, vnode) {
    if (isUndef(oldVnode.data.on) && isUndef(vnode.data.on)) {
      return
    }
    var on = vnode.data.on || {};
    var oldOn = oldVnode.data.on || {};
    target$1 = vnode.elm;
    normalizeEvents(on);
    updateListeners(on, oldOn, add$1, remove$2, createOnceHandler$1, vnode.context);
    target$1 = undefined;
  }
  
  var events = {
    create: updateDOMListeners,
    update: updateDOMListeners
  };
  
  /*  */
  
  var svgContainer;
  
  function updateDOMProps (oldVnode, vnode) {
    if (isUndef(oldVnode.data.domProps) && isUndef(vnode.data.domProps)) {
      return
    }
    var key, cur;
    var elm = vnode.elm;
    var oldProps = oldVnode.data.domProps || {};
    var props = vnode.data.domProps || {};
    // clone observed objects, as the user probably wants to mutate it
    if (isDef(props.__ob__)) {
      props = vnode.data.domProps = extend({}, props);
    }
  
    for (key in oldProps) {
      if (!(key in props)) {
        elm[key] = '';
      }
    }
  
    for (key in props) {
      cur = props[key];
      // ignore children if the node has textContent or innerHTML,
      // as these will throw away existing DOM nodes and cause removal errors
      // on subsequent patches (#3360)
      if (key === 'textContent' || key === 'innerHTML') {
        if (vnode.children) { vnode.children.length = 0; }
        if (cur === oldProps[key]) { continue }
        // #6601 work around Chrome version <= 55 bug where single textNode
        // replaced by innerHTML/textContent retains its parentNode property
        if (elm.childNodes.length === 1) {
          elm.removeChild(elm.childNodes[0]);
        }
      }
  
      if (key === 'value' && elm.tagName !== 'PROGRESS') {
        // store value as _value as well since
        // non-string values will be stringified
        elm._value = cur;
        // avoid resetting cursor position when value is the same
        var strCur = isUndef(cur) ? '' : String(cur);
        if (shouldUpdateValue(elm, strCur)) {
          elm.value = strCur;
        }
      } else if (key === 'innerHTML' && isSVG(elm.tagName) && isUndef(elm.innerHTML)) {
        // IE doesn't support innerHTML for SVG elements
        svgContainer = svgContainer || document.createElement('div');
        svgContainer.innerHTML = "<svg>" + cur + "</svg>";
        var svg = svgContainer.firstChild;
        while (elm.firstChild) {
          elm.removeChild(elm.firstChild);
        }
        while (svg.firstChild) {
          elm.appendChild(svg.firstChild);
        }
      } else if (
        // skip the update if old and new VDOM state is the same.
        // `value` is handled separately because the DOM value may be temporarily
        // out of sync with VDOM state due to focus, composition and modifiers.
        // This  #4521 by skipping the unnecessary `checked` update.
        cur !== oldProps[key]
      ) {
        // some property updates can throw
        // e.g. `value` on <progress> w/ non-finite value
        try {
          elm[key] = cur;
        } catch (e) {}
      }
    }
  }
  
  // check platforms/web/util/attrs.js acceptValue
  
  
  function shouldUpdateValue (elm, checkVal) {
    return (!elm.composing && (
      elm.tagName === 'OPTION' ||
      isNotInFocusAndDirty(elm, checkVal) ||
      isDirtyWithModifiers(elm, checkVal)
    ))
  }
  
  function isNotInFocusAndDirty (elm, checkVal) {
    // return true when textbox (.number and .trim) loses focus and its value is
    // not equal to the updated value
    var notInFocus = true;
    // #6157
    // work around IE bug when accessing document.activeElement in an iframe
    try { notInFocus = document.activeElement !== elm; } catch (e) {}
    return notInFocus && elm.value !== checkVal
  }
  
  function isDirtyWithModifiers (elm, newVal) {
    var value = elm.value;
    var modifiers = elm._vModifiers; // injected by v-model runtime
    if (isDef(modifiers)) {
      if (modifiers.number) {
        return toNumber(value) !== toNumber(newVal)
      }
      if (modifiers.trim) {
        return value.trim() !== newVal.trim()
      }
    }
    return value !== newVal
  }
  
  var domProps = {
    create: updateDOMProps,
    update: updateDOMProps
  };
  
  /*  */
  
  var parseStyleText = cached(function (cssText) {
    var res = {};
    var listDelimiter = /;(?![^(]*\))/g;
    var propertyDelimiter = /:(.+)/;
    cssText.split(listDelimiter).forEach(function (item) {
      if (item) {
        var tmp = item.split(propertyDelimiter);
        tmp.length > 1 && (res[tmp[0].trim()] = tmp[1].trim());
      }
    });
    return res
  });
  
  // merge static and dynamic style data on the same vnode
  function normalizeStyleData (data) {
    var style = normalizeStyleBinding(data.style);
    // static style is pre-processed into an object during compilation
    // and is always a fresh object, so it's safe to merge into it
    return data.staticStyle
      ? extend(data.staticStyle, style)
      : style
  }
  
  // normalize possible array / string values into Object
  function normalizeStyleBinding (bindingStyle) {
    if (Array.isArray(bindingStyle)) {
      return toObject(bindingStyle)
    }
    if (typeof bindingStyle === 'string') {
      return parseStyleText(bindingStyle)
    }
    return bindingStyle
  }
  
  /**
   * parent component style should be after child's
   * so that parent component's style could override it
   */
  function getStyle (vnode, checkChild) {
    var res = {};
    var styleData;
  
    if (checkChild) {
      var childNode = vnode;
      while (childNode.componentInstance) {
        childNode = childNode.componentInstance._vnode;
        if (
          childNode && childNode.data &&
          (styleData = normalizeStyleData(childNode.data))
        ) {
          extend(res, styleData);
        }
      }
    }
  
    if ((styleData = normalizeStyleData(vnode.data))) {
      extend(res, styleData);
    }
  
    var parentNode = vnode;
    while ((parentNode = parentNode.parent)) {
      if (parentNode.data && (styleData = normalizeStyleData(parentNode.data))) {
        extend(res, styleData);
      }
    }
    return res
  }
  
  /*  */
  
  var cssVarRE = /^--/;
  var importantRE = /\s*!important$/;
  var setProp = function (el, name, val) {
    /* istanbul ignore if */
    if (cssVarRE.test(name)) {
      el.style.setProperty(name, val);
    } else if (importantRE.test(val)) {
      el.style.setProperty(hyphenate(name), val.replace(importantRE, ''), 'important');
    } else {
      var normalizedName = normalize(name);
      if (Array.isArray(val)) {
        // Support values array created by autoprefixer, e.g.
        // {display: ["-webkit-box", "-ms-flexbox", "flex"]}
        // Set them one by one, and the browser will only set those it can recognize
        for (var i = 0, len = val.length; i < len; i++) {
          el.style[normalizedName] = val[i];
        }
      } else {
        el.style[normalizedName] = val;
      }
    }
  };
  
  var vendorNames = ['Webkit', 'Moz', 'ms'];
  
  var emptyStyle;
  var normalize = cached(function (prop) {
    emptyStyle = emptyStyle || document.createElement('div').style;
    prop = camelize(prop);
    if (prop !== 'filter' && (prop in emptyStyle)) {
      return prop
    }
    var capName = prop.charAt(0).toUpperCase() + prop.slice(1);
    for (var i = 0; i < vendorNames.length; i++) {
      var name = vendorNames[i] + capName;
      if (name in emptyStyle) {
        return name
      }
    }
  });
  
  function updateStyle (oldVnode, vnode) {
    var data = vnode.data;
    var oldData = oldVnode.data;
  
    if (isUndef(data.staticStyle) && isUndef(data.style) &&
      isUndef(oldData.staticStyle) && isUndef(oldData.style)
    ) {
      return
    }
  
    var cur, name;
    var el = vnode.elm;
    var oldStaticStyle = oldData.staticStyle;
    var oldStyleBinding = oldData.normalizedStyle || oldData.style || {};
  
    // if static style exists, stylebinding already merged into it when doing normalizeStyleData
    var oldStyle = oldStaticStyle || oldStyleBinding;
  
    var style = normalizeStyleBinding(vnode.data.style) || {};
  
    // store normalized style under a different key for next diff
    // make sure to clone it if it's reactive, since the user likely wants
    // to mutate it.
    vnode.data.normalizedStyle = isDef(style.__ob__)
      ? extend({}, style)
      : style;
  
    var newStyle = getStyle(vnode, true);
  
    for (name in oldStyle) {
      if (isUndef(newStyle[name])) {
        setProp(el, name, '');
      }
    }
    for (name in newStyle) {
      cur = newStyle[name];
      if (cur !== oldStyle[name]) {
        // ie9 setting to null has no effect, must use empty string
        setProp(el, name, cur == null ? '' : cur);
      }
    }
  }
  
  var style = {
    create: updateStyle,
    update: updateStyle
  };
  
  /*  */
  
  var whitespaceRE = /\s+/;
  
  /**
   * Add class with compatibility for SVG since classList is not supported on
   * SVG elements in IE
   */
  function addClass (el, cls) {
    /* istanbul ignore if */
    if (!cls || !(cls = cls.trim())) {
      return
    }
  
    /* istanbul ignore else */
    if (el.classList) {
      if (cls.indexOf(' ') > -1) {
        cls.split(whitespaceRE).forEach(function (c) { return el.classList.add(c); });
      } else {
        el.classList.add(cls);
      }
    } else {
      var cur = " " + (el.getAttribute('class') || '') + " ";
      if (cur.indexOf(' ' + cls + ' ') < 0) {
        el.setAttribute('class', (cur + cls).trim());
      }
    }
  }
  
  /**
   * Remove class with compatibility for SVG since classList is not supported on
   * SVG elements in IE
   */
  function removeClass (el, cls) {
    /* istanbul ignore if */
    if (!cls || !(cls = cls.trim())) {
      return
    }
  
    /* istanbul ignore else */
    if (el.classList) {
      if (cls.indexOf(' ') > -1) {
        cls.split(whitespaceRE).forEach(function (c) { return el.classList.remove(c); });
      } else {
        el.classList.remove(cls);
      }
      if (!el.classList.length) {
        el.removeAttribute('class');
      }
    } else {
      var cur = " " + (el.getAttribute('class') || '') + " ";
      var tar = ' ' + cls + ' ';
      while (cur.indexOf(tar) >= 0) {
        cur = cur.replace(tar, ' ');
      }
      cur = cur.trim();
      if (cur) {
        el.setAttribute('class', cur);
      } else {
        el.removeAttribute('class');
      }
    }
  }
  
  /*  */
  
  function resolveTransition (def$$1) {
    if (!def$$1) {
      return
    }
    /* istanbul ignore else */
    if (typeof def$$1 === 'object') {
      var res = {};
      if (def$$1.css !== false) {
        extend(res, autoCssTransition(def$$1.name || 'v'));
      }
      extend(res, def$$1);
      return res
    } else if (typeof def$$1 === 'string') {
      return autoCssTransition(def$$1)
    }
  }
  
  var autoCssTransition = cached(function (name) {
    return {
      enterClass: (name + "-enter"),
      enterToClass: (name + "-enter-to"),
      enterActiveClass: (name + "-enter-active"),
      leaveClass: (name + "-leave"),
      leaveToClass: (name + "-leave-to"),
      leaveActiveClass: (name + "-leave-active")
    }
  });
  
  var hasTransition = inBrowser && !isIE9;
  var TRANSITION = 'transition';
  var ANIMATION = 'animation';
  
  // Transition property/event sniffing
  var transitionProp = 'transition';
  var transitionEndEvent = 'transitionend';
  var animationProp = 'animation';
  var animationEndEvent = 'animationend';
  if (hasTransition) {
    /* istanbul ignore if */
    if (window.ontransitionend === undefined &&
      window.onwebkittransitionend !== undefined
    ) {
      transitionProp = 'WebkitTransition';
      transitionEndEvent = 'webkitTransitionEnd';
    }
    if (window.onanimationend === undefined &&
      window.onwebkitanimationend !== undefined
    ) {
      animationProp = 'WebkitAnimation';
      animationEndEvent = 'webkitAnimationEnd';
    }
  }
  
  // binding to window is necessary to make hot reload work in IE in strict mode
  var raf = inBrowser
    ? window.requestAnimationFrame
      ? window.requestAnimationFrame.bind(window)
      : setTimeout
    : /* istanbul ignore next */ function (fn) { return fn(); };
  
  function nextFrame (fn) {
    raf(function () {
      raf(fn);
    });
  }
  
  function addTransitionClass (el, cls) {
    var transitionClasses = el._transitionClasses || (el._transitionClasses = []);
    if (transitionClasses.indexOf(cls) < 0) {
      transitionClasses.push(cls);
      addClass(el, cls);
    }
  }
  
  function removeTransitionClass (el, cls) {
    if (el._transitionClasses) {
      remove(el._transitionClasses, cls);
    }
    removeClass(el, cls);
  }
  
  function whenTransitionEnds (
    el,
    expectedType,
    cb
  ) {
    var ref = getTransitionInfo(el, expectedType);
    var type = ref.type;
    var timeout = ref.timeout;
    var propCount = ref.propCount;
    if (!type) { return cb() }
    var event = type === TRANSITION ? transitionEndEvent : animationEndEvent;
    var ended = 0;
    var end = function () {
      el.removeEventListener(event, onEnd);
      cb();
    };
    var onEnd = function (e) {
      if (e.target === el) {
        if (++ended >= propCount) {
          end();
        }
      }
    };
    setTimeout(function () {
      if (ended < propCount) {
        end();
      }
    }, timeout + 1);
    el.addEventListener(event, onEnd);
  }
  
  var transformRE = /\b(transform|all)(,|$)/;
  
  function getTransitionInfo (el, expectedType) {
    var styles = window.getComputedStyle(el);
    // JSDOM may return undefined for transition properties
    var transitionDelays = (styles[transitionProp + 'Delay'] || '').split(', ');
    var transitionDurations = (styles[transitionProp + 'Duration'] || '').split(', ');
    var transitionTimeout = getTimeout(transitionDelays, transitionDurations);
    var animationDelays = (styles[animationProp + 'Delay'] || '').split(', ');
    var animationDurations = (styles[animationProp + 'Duration'] || '').split(', ');
    var animationTimeout = getTimeout(animationDelays, animationDurations);
  
    var type;
    var timeout = 0;
    var propCount = 0;
    /* istanbul ignore if */
    if (expectedType === TRANSITION) {
      if (transitionTimeout > 0) {
        type = TRANSITION;
        timeout = transitionTimeout;
        propCount = transitionDurations.length;
      }
    } else if (expectedType === ANIMATION) {
      if (animationTimeout > 0) {
        type = ANIMATION;
        timeout = animationTimeout;
        propCount = animationDurations.length;
      }
    } else {
      timeout = Math.max(transitionTimeout, animationTimeout);
      type = timeout > 0
        ? transitionTimeout > animationTimeout
          ? TRANSITION
          : ANIMATION
        : null;
      propCount = type
        ? type === TRANSITION
          ? transitionDurations.length
          : animationDurations.length
        : 0;
    }
    var hasTransform =
      type === TRANSITION &&
      transformRE.test(styles[transitionProp + 'Property']);
    return {
      type: type,
      timeout: timeout,
      propCount: propCount,
      hasTransform: hasTransform
    }
  }
  
  function getTimeout (delays, durations) {
    /* istanbul ignore next */
    while (delays.length < durations.length) {
      delays = delays.concat(delays);
    }
  
    return Math.max.apply(null, durations.map(function (d, i) {
      return toMs(d) + toMs(delays[i])
    }))
  }
  
  // Old versions of Chromium (below 61.0.3163.100) formats floating pointer numbers
  // in a locale-dependent way, using a comma instead of a dot.
  // If comma is not replaced with a dot, the input will be rounded down (i.e. acting
  // as a floor function) causing unexpected behaviors
  function toMs (s) {
    return Number(s.slice(0, -1).replace(',', '.')) * 1000
  }
  
  /*  */
  
  function enter (vnode, toggleDisplay) {
    var el = vnode.elm;
  
    // call leave callback now
    if (isDef(el._leaveCb)) {
      el._leaveCb.cancelled = true;
      el._leaveCb();
    }
  
    var data = resolveTransition(vnode.data.transition);
    if (isUndef(data)) {
      return
    }
  
    /* istanbul ignore if */
    if (isDef(el._enterCb) || el.nodeType !== 1) {
      return
    }
  
    var css = data.css;
    var type = data.type;
    var enterClass = data.enterClass;
    var enterToClass = data.enterToClass;
    var enterActiveClass = data.enterActiveClass;
    var appearClass = data.appearClass;
    var appearToClass = data.appearToClass;
    var appearActiveClass = data.appearActiveClass;
    var beforeEnter = data.beforeEnter;
    var enter = data.enter;
    var afterEnter = data.afterEnter;
    var enterCancelled = data.enterCancelled;
    var beforeAppear = data.beforeAppear;
    var appear = data.appear;
    var afterAppear = data.afterAppear;
    var appearCancelled = data.appearCancelled;
    var duration = data.duration;
  
    // activeInstance will always be the <transition> component managing this
    // transition. One edge case to check is when the <transition> is placed
    // as the root node of a child component. In that case we need to check
    // <transition>'s parent for appear check.
    var context = activeInstance;
    var transitionNode = activeInstance.$vnode;
    while (transitionNode && transitionNode.parent) {
      context = transitionNode.context;
      transitionNode = transitionNode.parent;
    }
  
    var isAppear = !context._isMounted || !vnode.isRootInsert;
  
    if (isAppear && !appear && appear !== '') {
      return
    }
  
    var startClass = isAppear && appearClass
      ? appearClass
      : enterClass;
    var activeClass = isAppear && appearActiveClass
      ? appearActiveClass
      : enterActiveClass;
    var toClass = isAppear && appearToClass
      ? appearToClass
      : enterToClass;
  
    var beforeEnterHook = isAppear
      ? (beforeAppear || beforeEnter)
      : beforeEnter;
    var enterHook = isAppear
      ? (typeof appear === 'function' ? appear : enter)
      : enter;
    var afterEnterHook = isAppear
      ? (afterAppear || afterEnter)
      : afterEnter;
    var enterCancelledHook = isAppear
      ? (appearCancelled || enterCancelled)
      : enterCancelled;
  
    var explicitEnterDuration = toNumber(
      isObject(duration)
        ? duration.enter
        : duration
    );
  
    if ( true && explicitEnterDuration != null) {
      checkDuration(explicitEnterDuration, 'enter', vnode);
    }
  
    var expectsCSS = css !== false && !isIE9;
    var userWantsControl = getHookArgumentsLength(enterHook);
  
    var cb = el._enterCb = once(function () {
      if (expectsCSS) {
        removeTransitionClass(el, toClass);
        removeTransitionClass(el, activeClass);
      }
      if (cb.cancelled) {
        if (expectsCSS) {
          removeTransitionClass(el, startClass);
        }
        enterCancelledHook && enterCancelledHook(el);
      } else {
        afterEnterHook && afterEnterHook(el);
      }
      el._enterCb = null;
    });
  
    if (!vnode.data.show) {
      // remove pending leave element on enter by injecting an insert hook
      mergeVNodeHook(vnode, 'insert', function () {
        var parent = el.parentNode;
        var pendingNode = parent && parent._pending && parent._pending[vnode.key];
        if (pendingNode &&
          pendingNode.tag === vnode.tag &&
          pendingNode.elm._leaveCb
        ) {
          pendingNode.elm._leaveCb();
        }
        enterHook && enterHook(el, cb);
      });
    }
  
    // start enter transition
    beforeEnterHook && beforeEnterHook(el);
    if (expectsCSS) {
      addTransitionClass(el, startClass);
      addTransitionClass(el, activeClass);
      nextFrame(function () {
        removeTransitionClass(el, startClass);
        if (!cb.cancelled) {
          addTransitionClass(el, toClass);
          if (!userWantsControl) {
            if (isValidDuration(explicitEnterDuration)) {
              setTimeout(cb, explicitEnterDuration);
            } else {
              whenTransitionEnds(el, type, cb);
            }
          }
        }
      });
    }
  
    if (vnode.data.show) {
      toggleDisplay && toggleDisplay();
      enterHook && enterHook(el, cb);
    }
  
    if (!expectsCSS && !userWantsControl) {
      cb();
    }
  }
  
  function leave (vnode, rm) {
    var el = vnode.elm;
  
    // call enter callback now
    if (isDef(el._enterCb)) {
      el._enterCb.cancelled = true;
      el._enterCb();
    }
  
    var data = resolveTransition(vnode.data.transition);
    if (isUndef(data) || el.nodeType !== 1) {
      return rm()
    }
  
    /* istanbul ignore if */
    if (isDef(el._leaveCb)) {
      return
    }
  
    var css = data.css;
    var type = data.type;
    var leaveClass = data.leaveClass;
    var leaveToClass = data.leaveToClass;
    var leaveActiveClass = data.leaveActiveClass;
    var beforeLeave = data.beforeLeave;
    var leave = data.leave;
    var afterLeave = data.afterLeave;
    var leaveCancelled = data.leaveCancelled;
    var delayLeave = data.delayLeave;
    var duration = data.duration;
  
    var expectsCSS = css !== false && !isIE9;
    var userWantsControl = getHookArgumentsLength(leave);
  
    var explicitLeaveDuration = toNumber(
      isObject(duration)
        ? duration.leave
        : duration
    );
  
    if ( true && isDef(explicitLeaveDuration)) {
      checkDuration(explicitLeaveDuration, 'leave', vnode);
    }
  
    var cb = el._leaveCb = once(function () {
      if (el.parentNode && el.parentNode._pending) {
        el.parentNode._pending[vnode.key] = null;
      }
      if (expectsCSS) {
        removeTransitionClass(el, leaveToClass);
        removeTransitionClass(el, leaveActiveClass);
      }
      if (cb.cancelled) {
        if (expectsCSS) {
          removeTransitionClass(el, leaveClass);
        }
        leaveCancelled && leaveCancelled(el);
      } else {
        rm();
        afterLeave && afterLeave(el);
      }
      el._leaveCb = null;
    });
  
    if (delayLeave) {
      delayLeave(performLeave);
    } else {
      performLeave();
    }
  
    function performLeave () {
      // the delayed leave may have already been cancelled
      if (cb.cancelled) {
        return
      }
      // record leaving element
      if (!vnode.data.show && el.parentNode) {
        (el.parentNode._pending || (el.parentNode._pending = {}))[(vnode.key)] = vnode;
      }
      beforeLeave && beforeLeave(el);
      if (expectsCSS) {
        addTransitionClass(el, leaveClass);
        addTransitionClass(el, leaveActiveClass);
        nextFrame(function () {
          removeTransitionClass(el, leaveClass);
          if (!cb.cancelled) {
            addTransitionClass(el, leaveToClass);
            if (!userWantsControl) {
              if (isValidDuration(explicitLeaveDuration)) {
                setTimeout(cb, explicitLeaveDuration);
              } else {
                whenTransitionEnds(el, type, cb);
              }
            }
          }
        });
      }
      leave && leave(el, cb);
      if (!expectsCSS && !userWantsControl) {
        cb();
      }
    }
  }
  
  // only used in dev mode
  function checkDuration (val, name, vnode) {
    if (typeof val !== 'number') {
      warn(
        "<transition> explicit " + name + " duration is not a valid number - " +
        "got " + (JSON.stringify(val)) + ".",
        vnode.context
      );
    } else if (isNaN(val)) {
      warn(
        "<transition> explicit " + name + " duration is NaN - " +
        'the duration expression might be incorrect.',
        vnode.context
      );
    }
  }
  
  function isValidDuration (val) {
    return typeof val === 'number' && !isNaN(val)
  }
  
  /**
   * Normalize a transition hook's argument length. The hook may be:
   * - a merged hook (invoker) with the original in .fns
   * - a wrapped component method (check ._length)
   * - a plain function (.length)
   */
  function getHookArgumentsLength (fn) {
    if (isUndef(fn)) {
      return false
    }
    var invokerFns = fn.fns;
    if (isDef(invokerFns)) {
      // invoker
      return getHookArgumentsLength(
        Array.isArray(invokerFns)
          ? invokerFns[0]
          : invokerFns
      )
    } else {
      return (fn._length || fn.length) > 1
    }
  }
  
  function _enter (_, vnode) {
    if (vnode.data.show !== true) {
      enter(vnode);
    }
  }
  
  var transition = inBrowser ? {
    create: _enter,
    activate: _enter,
    remove: function remove$$1 (vnode, rm) {
      /* istanbul ignore else */
      if (vnode.data.show !== true) {
        leave(vnode, rm);
      } else {
        rm();
      }
    }
  } : {};
  
  var platformModules = [
    attrs,
    klass,
    events,
    domProps,
    style,
    transition
  ];
  
  /*  */
  
  // the directive module should be applied last, after all
  // built-in modules have been applied.
  var modules = platformModules.concat(baseModules);
  
  var patch = createPatchFunction({ nodeOps: nodeOps, modules: modules });
  
  /**
   * Not type checking this file because flow doesn't like attaching
   * properties to Elements.
   */
  
  /* istanbul ignore if */
  if (isIE9) {
    // http://www.matts411.com/post/internet-explorer-9-oninput/
    document.addEventListener('selectionchange', function () {
      var el = document.activeElement;
      if (el && el.vmodel) {
        trigger(el, 'input');
      }
    });
  }
  
  var directive = {
    inserted: function inserted (el, binding, vnode, oldVnode) {
      if (vnode.tag === 'select') {
        // #6903
        if (oldVnode.elm && !oldVnode.elm._vOptions) {
          mergeVNodeHook(vnode, 'postpatch', function () {
            directive.componentUpdated(el, binding, vnode);
          });
        } else {
          setSelected(el, binding, vnode.context);
        }
        el._vOptions = [].map.call(el.options, getValue);
      } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
        el._vModifiers = binding.modifiers;
        if (!binding.modifiers.lazy) {
          el.addEventListener('compositionstart', onCompositionStart);
          el.addEventListener('compositionend', onCompositionEnd);
          // Safari < 10.2 & UIWebView doesn't fire compositionend when
          // switching focus before confirming composition choice
          // this also fixes the issue where some browsers e.g. iOS Chrome
          // fires "change" instead of "input" on autocomplete.
          el.addEventListener('change', onCompositionEnd);
          /* istanbul ignore if */
          if (isIE9) {
            el.vmodel = true;
          }
        }
      }
    },
  
    componentUpdated: function componentUpdated (el, binding, vnode) {
      if (vnode.tag === 'select') {
        setSelected(el, binding, vnode.context);
        // in case the options rendered by v-for have changed,
        // it's possible that the value is out-of-sync with the rendered options.
        // detect such cases and filter out values that no longer has a matching
        // option in the DOM.
        var prevOptions = el._vOptions;
        var curOptions = el._vOptions = [].map.call(el.options, getValue);
        if (curOptions.some(function (o, i) { return !looseEqual(o, prevOptions[i]); })) {
          // trigger change event if
          // no matching option found for at least one value
          var needReset = el.multiple
            ? binding.value.some(function (v) { return hasNoMatchingOption(v, curOptions); })
            : binding.value !== binding.oldValue && hasNoMatchingOption(binding.value, curOptions);
          if (needReset) {
            trigger(el, 'change');
          }
        }
      }
    }
  };
  
  function setSelected (el, binding, vm) {
    actuallySetSelected(el, binding, vm);
    /* istanbul ignore if */
    if (isIE || isEdge) {
      setTimeout(function () {
        actuallySetSelected(el, binding, vm);
      }, 0);
    }
  }
  
  function actuallySetSelected (el, binding, vm) {
    var value = binding.value;
    var isMultiple = el.multiple;
    if (isMultiple && !Array.isArray(value)) {
       true && warn(
        "<select multiple v-model=\"" + (binding.expression) + "\"> " +
        "expects an Array value for its binding, but got " + (Object.prototype.toString.call(value).slice(8, -1)),
        vm
      );
      return
    }
    var selected, option;
    for (var i = 0, l = el.options.length; i < l; i++) {
      option = el.options[i];
      if (isMultiple) {
        selected = looseIndexOf(value, getValue(option)) > -1;
        if (option.selected !== selected) {
          option.selected = selected;
        }
      } else {
        if (looseEqual(getValue(option), value)) {
          if (el.selectedIndex !== i) {
            el.selectedIndex = i;
          }
          return
        }
      }
    }
    if (!isMultiple) {
      el.selectedIndex = -1;
    }
  }
  
  function hasNoMatchingOption (value, options) {
    return options.every(function (o) { return !looseEqual(o, value); })
  }
  
  function getValue (option) {
    return '_value' in option
      ? option._value
      : option.value
  }
  
  function onCompositionStart (e) {
    e.target.composing = true;
  }
  
  function onCompositionEnd (e) {
    // prevent triggering an input event for no reason
    if (!e.target.composing) { return }
    e.target.composing = false;
    trigger(e.target, 'input');
  }
  
  function trigger (el, type) {
    var e = document.createEvent('HTMLEvents');
    e.initEvent(type, true, true);
    el.dispatchEvent(e);
  }
  
  /*  */
  
  // recursively search for possible transition defined inside the component root
  function locateNode (vnode) {
    return vnode.componentInstance && (!vnode.data || !vnode.data.transition)
      ? locateNode(vnode.componentInstance._vnode)
      : vnode
  }
  
  var show = {
    bind: function bind (el, ref, vnode) {
      var value = ref.value;
  
      vnode = locateNode(vnode);
      var transition$$1 = vnode.data && vnode.data.transition;
      var originalDisplay = el.__vOriginalDisplay =
        el.style.display === 'none' ? '' : el.style.display;
      if (value && transition$$1) {
        vnode.data.show = true;
        enter(vnode, function () {
          el.style.display = originalDisplay;
        });
      } else {
        el.style.display = value ? originalDisplay : 'none';
      }
    },
  
    update: function update (el, ref, vnode) {
      var value = ref.value;
      var oldValue = ref.oldValue;
  
      /* istanbul ignore if */
      if (!value === !oldValue) { return }
      vnode = locateNode(vnode);
      var transition$$1 = vnode.data && vnode.data.transition;
      if (transition$$1) {
        vnode.data.show = true;
        if (value) {
          enter(vnode, function () {
            el.style.display = el.__vOriginalDisplay;
          });
        } else {
          leave(vnode, function () {
            el.style.display = 'none';
          });
        }
      } else {
        el.style.display = value ? el.__vOriginalDisplay : 'none';
      }
    },
  
    unbind: function unbind (
      el,
      binding,
      vnode,
      oldVnode,
      isDestroy
    ) {
      if (!isDestroy) {
        el.style.display = el.__vOriginalDisplay;
      }
    }
  };
  
  var platformDirectives = {
    model: directive,
    show: show
  };
  
  /*  */
  
  var transitionProps = {
    name: String,
    appear: Boolean,
    css: Boolean,
    mode: String,
    type: String,
    enterClass: String,
    leaveClass: String,
    enterToClass: String,
    leaveToClass: String,
    enterActiveClass: String,
    leaveActiveClass: String,
    appearClass: String,
    appearActiveClass: String,
    appearToClass: String,
    duration: [Number, String, Object]
  };
  
  // in case the child is also an abstract component, e.g. <keep-alive>
  // we want to recursively retrieve the real component to be rendered
  function getRealChild (vnode) {
    var compOptions = vnode && vnode.componentOptions;
    if (compOptions && compOptions.Ctor.options.abstract) {
      return getRealChild(getFirstComponentChild(compOptions.children))
    } else {
      return vnode
    }
  }
  
  function extractTransitionData (comp) {
    var data = {};
    var options = comp.$options;
    // props
    for (var key in options.propsData) {
      data[key] = comp[key];
    }
    // events.
    // extract listeners and pass them directly to the transition methods
    var listeners = options._parentListeners;
    for (var key$1 in listeners) {
      data[camelize(key$1)] = listeners[key$1];
    }
    return data
  }
  
  function placeholder (h, rawChild) {
    if (/\d-keep-alive$/.test(rawChild.tag)) {
      return h('keep-alive', {
        props: rawChild.componentOptions.propsData
      })
    }
  }
  
  function hasParentTransition (vnode) {
    while ((vnode = vnode.parent)) {
      if (vnode.data.transition) {
        return true
      }
    }
  }
  
  function isSameChild (child, oldChild) {
    return oldChild.key === child.key && oldChild.tag === child.tag
  }
  
  var isNotTextNode = function (c) { return c.tag || isAsyncPlaceholder(c); };
  
  var isVShowDirective = function (d) { return d.name === 'show'; };
  
  var Transition = {
    name: 'transition',
    props: transitionProps,
    abstract: true,
  
    render: function render (h) {
      var this$1 = this;
  
      var children = this.$slots.default;
      if (!children) {
        return
      }
  
      // filter out text nodes (possible whitespaces)
      children = children.filter(isNotTextNode);
      /* istanbul ignore if */
      if (!children.length) {
        return
      }
  
      // warn multiple elements
      if ( true && children.length > 1) {
        warn(
          '<transition> can only be used on a single element. Use ' +
          '<transition-group> for lists.',
          this.$parent
        );
      }
  
      var mode = this.mode;
  
      // warn invalid mode
      if ( true &&
        mode && mode !== 'in-out' && mode !== 'out-in'
      ) {
        warn(
          'invalid <transition> mode: ' + mode,
          this.$parent
        );
      }
  
      var rawChild = children[0];
  
      // if this is a component root node and the component's
      // parent container node also has transition, skip.
      if (hasParentTransition(this.$vnode)) {
        return rawChild
      }
  
      // apply transition data to child
      // use getRealChild() to ignore abstract components e.g. keep-alive
      var child = getRealChild(rawChild);
      /* istanbul ignore if */
      if (!child) {
        return rawChild
      }
  
      if (this._leaving) {
        return placeholder(h, rawChild)
      }
  
      // ensure a key that is unique to the vnode type and to this transition
      // component instance. This key will be used to remove pending leaving nodes
      // during entering.
      var id = "__transition-" + (this._uid) + "-";
      child.key = child.key == null
        ? child.isComment
          ? id + 'comment'
          : id + child.tag
        : isPrimitive(child.key)
          ? (String(child.key).indexOf(id) === 0 ? child.key : id + child.key)
          : child.key;
  
      var data = (child.data || (child.data = {})).transition = extractTransitionData(this);
      var oldRawChild = this._vnode;
      var oldChild = getRealChild(oldRawChild);
  
      // mark v-show
      // so that the transition module can hand over the control to the directive
      if (child.data.directives && child.data.directives.some(isVShowDirective)) {
        child.data.show = true;
      }
  
      if (
        oldChild &&
        oldChild.data &&
        !isSameChild(child, oldChild) &&
        !isAsyncPlaceholder(oldChild) &&
        // #6687 component root is a comment node
        !(oldChild.componentInstance && oldChild.componentInstance._vnode.isComment)
      ) {
        // replace old child transition data with fresh one
        // important for dynamic transitions!
        var oldData = oldChild.data.transition = extend({}, data);
        // handle transition mode
        if (mode === 'out-in') {
          // return placeholder node and queue update when leave finishes
          this._leaving = true;
          mergeVNodeHook(oldData, 'afterLeave', function () {
            this$1._leaving = false;
            this$1.$forceUpdate();
          });
          return placeholder(h, rawChild)
        } else if (mode === 'in-out') {
          if (isAsyncPlaceholder(child)) {
            return oldRawChild
          }
          var delayedLeave;
          var performLeave = function () { delayedLeave(); };
          mergeVNodeHook(data, 'afterEnter', performLeave);
          mergeVNodeHook(data, 'enterCancelled', performLeave);
          mergeVNodeHook(oldData, 'delayLeave', function (leave) { delayedLeave = leave; });
        }
      }
  
      return rawChild
    }
  };
  
  /*  */
  
  var props = extend({
    tag: String,
    moveClass: String
  }, transitionProps);
  
  delete props.mode;
  
  var TransitionGroup = {
    props: props,
  
    beforeMount: function beforeMount () {
      var this$1 = this;
  
      var update = this._update;
      this._update = function (vnode, hydrating) {
        var restoreActiveInstance = setActiveInstance(this$1);
        // force removing pass
        this$1.__patch__(
          this$1._vnode,
          this$1.kept,
          false, // hydrating
          true // removeOnly (!important, avoids unnecessary moves)
        );
        this$1._vnode = this$1.kept;
        restoreActiveInstance();
        update.call(this$1, vnode, hydrating);
      };
    },
  
    render: function render (h) {
      var tag = this.tag || this.$vnode.data.tag || 'span';
      var map = Object.create(null);
      var prevChildren = this.prevChildren = this.children;
      var rawChildren = this.$slots.default || [];
      var children = this.children = [];
      var transitionData = extractTransitionData(this);
  
      for (var i = 0; i < rawChildren.length; i++) {
        var c = rawChildren[i];
        if (c.tag) {
          if (c.key != null && String(c.key).indexOf('__vlist') !== 0) {
            children.push(c);
            map[c.key] = c
            ;(c.data || (c.data = {})).transition = transitionData;
          } else if (true) {
            var opts = c.componentOptions;
            var name = opts ? (opts.Ctor.options.name || opts.tag || '') : c.tag;
            warn(("<transition-group> children must be keyed: <" + name + ">"));
          }
        }
      }
  
      if (prevChildren) {
        var kept = [];
        var removed = [];
        for (var i$1 = 0; i$1 < prevChildren.length; i$1++) {
          var c$1 = prevChildren[i$1];
          c$1.data.transition = transitionData;
          c$1.data.pos = c$1.elm.getBoundingClientRect();
          if (map[c$1.key]) {
            kept.push(c$1);
          } else {
            removed.push(c$1);
          }
        }
        this.kept = h(tag, null, kept);
        this.removed = removed;
      }
  
      return h(tag, null, children)
    },
  
    updated: function updated () {
      var children = this.prevChildren;
      var moveClass = this.moveClass || ((this.name || 'v') + '-move');
      if (!children.length || !this.hasMove(children[0].elm, moveClass)) {
        return
      }
  
      // we divide the work into three loops to avoid mixing DOM reads and writes
      // in each iteration - which helps prevent layout thrashing.
      children.forEach(callPendingCbs);
      children.forEach(recordPosition);
      children.forEach(applyTranslation);
  
      // force reflow to put everything in position
      // assign to this to avoid being removed in tree-shaking
      // $flow-disable-line
      this._reflow = document.body.offsetHeight;
  
      children.forEach(function (c) {
        if (c.data.moved) {
          var el = c.elm;
          var s = el.style;
          addTransitionClass(el, moveClass);
          s.transform = s.WebkitTransform = s.transitionDuration = '';
          el.addEventListener(transitionEndEvent, el._moveCb = function cb (e) {
            if (e && e.target !== el) {
              return
            }
            if (!e || /transform$/.test(e.propertyName)) {
              el.removeEventListener(transitionEndEvent, cb);
              el._moveCb = null;
              removeTransitionClass(el, moveClass);
            }
          });
        }
      });
    },
  
    methods: {
      hasMove: function hasMove (el, moveClass) {
        /* istanbul ignore if */
        if (!hasTransition) {
          return false
        }
        /* istanbul ignore if */
        if (this._hasMove) {
          return this._hasMove
        }
        // Detect whether an element with the move class applied has
        // CSS transitions. Since the element may be inside an entering
        // transition at this very moment, we make a clone of it and remove
        // all other transition classes applied to ensure only the move class
        // is applied.
        var clone = el.cloneNode();
        if (el._transitionClasses) {
          el._transitionClasses.forEach(function (cls) { removeClass(clone, cls); });
        }
        addClass(clone, moveClass);
        clone.style.display = 'none';
        this.$el.appendChild(clone);
        var info = getTransitionInfo(clone);
        this.$el.removeChild(clone);
        return (this._hasMove = info.hasTransform)
      }
    }
  };
  
  function callPendingCbs (c) {
    /* istanbul ignore if */
    if (c.elm._moveCb) {
      c.elm._moveCb();
    }
    /* istanbul ignore if */
    if (c.elm._enterCb) {
      c.elm._enterCb();
    }
  }
  
  function recordPosition (c) {
    c.data.newPos = c.elm.getBoundingClientRect();
  }
  
  function applyTranslation (c) {
    var oldPos = c.data.pos;
    var newPos = c.data.newPos;
    var dx = oldPos.left - newPos.left;
    var dy = oldPos.top - newPos.top;
    if (dx || dy) {
      c.data.moved = true;
      var s = c.elm.style;
      s.transform = s.WebkitTransform = "translate(" + dx + "px," + dy + "px)";
      s.transitionDuration = '0s';
    }
  }
  
  var platformComponents = {
    Transition: Transition,
    TransitionGroup: TransitionGroup
  };
  
  /*  */
  
  // install platform specific utils
  Vue.config.mustUseProp = mustUseProp;
  Vue.config.isReservedTag = isReservedTag;
  Vue.config.isReservedAttr = isReservedAttr;
  Vue.config.getTagNamespace = getTagNamespace;
  Vue.config.isUnknownElement = isUnknownElement;
  
  // install platform runtime directives & components
  extend(Vue.options.directives, platformDirectives);
  extend(Vue.options.components, platformComponents);
  
  // install platform patch function
  Vue.prototype.__patch__ = inBrowser ? patch : noop;
  
  // public mount method
  Vue.prototype.$mount = function (
    el,
    hydrating
  ) {
    el = el && inBrowser ? query(el) : undefined;
    return mountComponent(this, el, hydrating)
  };
  
  // devtools global hook
  /* istanbul ignore next */
  if (inBrowser) {
    setTimeout(function () {
      if (config.devtools) {
        if (devtools) {
          devtools.emit('init', Vue);
        } else if (
          true
        ) {
          console[console.info ? 'info' : 'log'](
            'Download the Vue Devtools extension for a better development experience:\n' +
            'https://github.com/vuejs/vue-devtools'
          );
        }
      }
      if ( true &&
        config.productionTip !== false &&
        typeof console !== 'undefined'
      ) {
        console[console.info ? 'info' : 'log'](
          "You are running Vue in development mode.\n" +
          "Make sure to turn on production mode when deploying for production.\n" +
          "See more tips at https://vuejs.org/guide/deployment.html"
        );
      }
    }, 0);
  }
  
  /*  */
  
  var defaultTagRE = /\{\{((?:.|\r?\n)+?)\}\}/g;
  var regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g;
  
  var buildRegex = cached(function (delimiters) {
    var open = delimiters[0].replace(regexEscapeRE, '\\$&');
    var close = delimiters[1].replace(regexEscapeRE, '\\$&');
    return new RegExp(open + '((?:.|\\n)+?)' + close, 'g')
  });
  
  
  
  function parseText (
    text,
    delimiters
  ) {
    var tagRE = delimiters ? buildRegex(delimiters) : defaultTagRE;
    if (!tagRE.test(text)) {
      return
    }
    var tokens = [];
    var rawTokens = [];
    var lastIndex = tagRE.lastIndex = 0;
    var match, index, tokenValue;
    while ((match = tagRE.exec(text))) {
      index = match.index;
      // push text token
      if (index > lastIndex) {
        rawTokens.push(tokenValue = text.slice(lastIndex, index));
        tokens.push(JSON.stringify(tokenValue));
      }
      // tag token
      var exp = parseFilters(match[1].trim());
      tokens.push(("_s(" + exp + ")"));
      rawTokens.push({ '@binding': exp });
      lastIndex = index + match[0].length;
    }
    if (lastIndex < text.length) {
      rawTokens.push(tokenValue = text.slice(lastIndex));
      tokens.push(JSON.stringify(tokenValue));
    }
    return {
      expression: tokens.join('+'),
      tokens: rawTokens
    }
  }
  
  /*  */
  
  function transformNode (el, options) {
    var warn = options.warn || baseWarn;
    var staticClass = getAndRemoveAttr(el, 'class');
    if ( true && staticClass) {
      var res = parseText(staticClass, options.delimiters);
      if (res) {
        warn(
          "class=\"" + staticClass + "\": " +
          'Interpolation inside attributes has been removed. ' +
          'Use v-bind or the colon shorthand instead. For example, ' +
          'instead of <div class="{{ val }}">, use <div :class="val">.',
          el.rawAttrsMap['class']
        );
      }
    }
    if (staticClass) {
      el.staticClass = JSON.stringify(staticClass);
    }
    var classBinding = getBindingAttr(el, 'class', false /* getStatic */);
    if (classBinding) {
      el.classBinding = classBinding;
    }
  }
  
  function genData (el) {
    var data = '';
    if (el.staticClass) {
      data += "staticClass:" + (el.staticClass) + ",";
    }
    if (el.classBinding) {
      data += "class:" + (el.classBinding) + ",";
    }
    return data
  }
  
  var klass$1 = {
    staticKeys: ['staticClass'],
    transformNode: transformNode,
    genData: genData
  };
  
  /*  */
  
  function transformNode$1 (el, options) {
    var warn = options.warn || baseWarn;
    var staticStyle = getAndRemoveAttr(el, 'style');
    if (staticStyle) {
      /* istanbul ignore if */
      if (true) {
        var res = parseText(staticStyle, options.delimiters);
        if (res) {
          warn(
            "style=\"" + staticStyle + "\": " +
            'Interpolation inside attributes has been removed. ' +
            'Use v-bind or the colon shorthand instead. For example, ' +
            'instead of <div style="{{ val }}">, use <div :style="val">.',
            el.rawAttrsMap['style']
          );
        }
      }
      el.staticStyle = JSON.stringify(parseStyleText(staticStyle));
    }
  
    var styleBinding = getBindingAttr(el, 'style', false /* getStatic */);
    if (styleBinding) {
      el.styleBinding = styleBinding;
    }
  }
  
  function genData$1 (el) {
    var data = '';
    if (el.staticStyle) {
      data += "staticStyle:" + (el.staticStyle) + ",";
    }
    if (el.styleBinding) {
      data += "style:(" + (el.styleBinding) + "),";
    }
    return data
  }
  
  var style$1 = {
    staticKeys: ['staticStyle'],
    transformNode: transformNode$1,
    genData: genData$1
  };
  
  /*  */
  
  var decoder;
  
  var he = {
    decode: function decode (html) {
      decoder = decoder || document.createElement('div');
      decoder.innerHTML = html;
      return decoder.textContent
    }
  };
  
  /*  */
  
  var isUnaryTag = makeMap(
    'area,base,br,col,embed,frame,hr,img,input,isindex,keygen,' +
    'link,meta,param,source,track,wbr'
  );
  
  // Elements that you can, intentionally, leave open
  // (and which close themselves)
  var canBeLeftOpenTag = makeMap(
    'colgroup,dd,dt,li,options,p,td,tfoot,th,thead,tr,source'
  );
  
  // HTML5 tags https://html.spec.whatwg.org/multipage/indices.html#elements-3
  // Phrasing Content https://html.spec.whatwg.org/multipage/dom.html#phrasing-content
  var isNonPhrasingTag = makeMap(
    'address,article,aside,base,blockquote,body,caption,col,colgroup,dd,' +
    'details,dialog,div,dl,dt,fieldset,figcaption,figure,footer,form,' +
    'h1,h2,h3,h4,h5,h6,head,header,hgroup,hr,html,legend,li,menuitem,meta,' +
    'optgroup,option,param,rp,rt,source,style,summary,tbody,td,tfoot,th,thead,' +
    'title,tr,track'
  );
  
  /**
   * Not type-checking this file because it's mostly vendor code.
   */
  
  // Regular Expressions for parsing tags and attributes
  var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
  var dynamicArgAttribute = /^\s*((?:v-[\w-]+:|@|:|#)\[[^=]+?\][^\s"'<>\/=]*)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
  var ncname = "[a-zA-Z_][\\-\\.0-9_a-zA-Z" + (unicodeRegExp.source) + "]*";
  var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
  var startTagOpen = new RegExp(("^<" + qnameCapture));
  var startTagClose = /^\s*(\/?)>/;
  var endTag = new RegExp(("^<\\/" + qnameCapture + "[^>]*>"));
  var doctype = /^<!DOCTYPE [^>]+>/i;
  // #7298: escape - to avoid being passed as HTML comment when inlined in page
  var comment = /^<!\--/;
  var conditionalComment = /^<!\[/;
  
  // Special Elements (can contain anything)
  var isPlainTextElement = makeMap('script,style,textarea', true);
  var reCache = {};
  
  var decodingMap = {
    '&lt;': '<',
    '&gt;': '>',
    '&quot;': '"',
    '&amp;': '&',
    '&#10;': '\n',
    '&#9;': '\t',
    '&#39;': "'"
  };
  var encodedAttr = /&(?:lt|gt|quot|amp|#39);/g;
  var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#39|#10|#9);/g;
  
  // #5992
  var isIgnoreNewlineTag = makeMap('pre,textarea', true);
  var shouldIgnoreFirstNewline = function (tag, html) { return tag && isIgnoreNewlineTag(tag) && html[0] === '\n'; };
  
  function decodeAttr (value, shouldDecodeNewlines) {
    var re = shouldDecodeNewlines ? encodedAttrWithNewLines : encodedAttr;
    return value.replace(re, function (match) { return decodingMap[match]; })
  }
  
  function parseHTML (html, options) {
    var stack = [];
    var expectHTML = options.expectHTML;
    var isUnaryTag$$1 = options.isUnaryTag || no;
    var canBeLeftOpenTag$$1 = options.canBeLeftOpenTag || no;
    var index = 0;
    var last, lastTag;
    while (html) {
      last = html;
      // Make sure we're not in a plaintext content element like script/style
      if (!lastTag || !isPlainTextElement(lastTag)) {
        var textEnd = html.indexOf('<');
        if (textEnd === 0) {
          // Comment:
          if (comment.test(html)) {
            var commentEnd = html.indexOf('-->');
  
            if (commentEnd >= 0) {
              if (options.shouldKeepComment) {
                options.comment(html.substring(4, commentEnd), index, index + commentEnd + 3);
              }
              advance(commentEnd + 3);
              continue
            }
          }
  
          // http://en.wikipedia.org/wiki/Conditional_comment#Downlevel-revealed_conditional_comment
          if (conditionalComment.test(html)) {
            var conditionalEnd = html.indexOf(']>');
  
            if (conditionalEnd >= 0) {
              advance(conditionalEnd + 2);
              continue
            }
          }
  
          // Doctype:
          var doctypeMatch = html.match(doctype);
          if (doctypeMatch) {
            advance(doctypeMatch[0].length);
            continue
          }
  
          // End tag:
          var endTagMatch = html.match(endTag);
          if (endTagMatch) {
            var curIndex = index;
            advance(endTagMatch[0].length);
            parseEndTag(endTagMatch[1], curIndex, index);
            continue
          }
  
          // Start tag:
          var startTagMatch = parseStartTag();
          if (startTagMatch) {
            handleStartTag(startTagMatch);
            if (shouldIgnoreFirstNewline(startTagMatch.tagName, html)) {
              advance(1);
            }
            continue
          }
        }
  
        var text = (void 0), rest = (void 0), next = (void 0);
        if (textEnd >= 0) {
          rest = html.slice(textEnd);
          while (
            !endTag.test(rest) &&
            !startTagOpen.test(rest) &&
            !comment.test(rest) &&
            !conditionalComment.test(rest)
          ) {
            // < in plain text, be forgiving and treat it as text
            next = rest.indexOf('<', 1);
            if (next < 0) { break }
            textEnd += next;
            rest = html.slice(textEnd);
          }
          text = html.substring(0, textEnd);
        }
  
        if (textEnd < 0) {
          text = html;
        }
  
        if (text) {
          advance(text.length);
        }
  
        if (options.chars && text) {
          options.chars(text, index - text.length, index);
        }
      } else {
        var endTagLength = 0;
        var stackedTag = lastTag.toLowerCase();
        var reStackedTag = reCache[stackedTag] || (reCache[stackedTag] = new RegExp('([\\s\\S]*?)(</' + stackedTag + '[^>]*>)', 'i'));
        var rest$1 = html.replace(reStackedTag, function (all, text, endTag) {
          endTagLength = endTag.length;
          if (!isPlainTextElement(stackedTag) && stackedTag !== 'noscript') {
            text = text
              .replace(/<!\--([\s\S]*?)-->/g, '$1') // #7298
              .replace(/<!\[CDATA\[([\s\S]*?)]]>/g, '$1');
          }
          if (shouldIgnoreFirstNewline(stackedTag, text)) {
            text = text.slice(1);
          }
          if (options.chars) {
            options.chars(text);
          }
          return ''
        });
        index += html.length - rest$1.length;
        html = rest$1;
        parseEndTag(stackedTag, index - endTagLength, index);
      }
  
      if (html === last) {
        options.chars && options.chars(html);
        if ( true && !stack.length && options.warn) {
          options.warn(("Mal-formatted tag at end of template: \"" + html + "\""), { start: index + html.length });
        }
        break
      }
    }
  
    // Clean up any remaining tags
    parseEndTag();
  
    function advance (n) {
      index += n;
      html = html.substring(n);
    }
  
    function parseStartTag () {
      var start = html.match(startTagOpen);
      if (start) {
        var match = {
          tagName: start[1],
          attrs: [],
          start: index
        };
        advance(start[0].length);
        var end, attr;
        while (!(end = html.match(startTagClose)) && (attr = html.match(dynamicArgAttribute) || html.match(attribute))) {
          attr.start = index;
          advance(attr[0].length);
          attr.end = index;
          match.attrs.push(attr);
        }
        if (end) {
          match.unarySlash = end[1];
          advance(end[0].length);
          match.end = index;
          return match
        }
      }
    }
  
    function handleStartTag (match) {
      var tagName = match.tagName;
      var unarySlash = match.unarySlash;
  
      if (expectHTML) {
        if (lastTag === 'p' && isNonPhrasingTag(tagName)) {
          parseEndTag(lastTag);
        }
        if (canBeLeftOpenTag$$1(tagName) && lastTag === tagName) {
          parseEndTag(tagName);
        }
      }
  
      var unary = isUnaryTag$$1(tagName) || !!unarySlash;
  
      var l = match.attrs.length;
      var attrs = new Array(l);
      for (var i = 0; i < l; i++) {
        var args = match.attrs[i];
        var value = args[3] || args[4] || args[5] || '';
        var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
          ? options.shouldDecodeNewlinesForHref
          : options.shouldDecodeNewlines;
        attrs[i] = {
          name: args[1],
          value: decodeAttr(value, shouldDecodeNewlines)
        };
        if ( true && options.outputSourceRange) {
          attrs[i].start = args.start + args[0].match(/^\s*/).length;
          attrs[i].end = args.end;
        }
      }
  
      if (!unary) {
        stack.push({ tag: tagName, lowerCasedTag: tagName.toLowerCase(), attrs: attrs, start: match.start, end: match.end });
        lastTag = tagName;
      }
  
      if (options.start) {
        options.start(tagName, attrs, unary, match.start, match.end);
      }
    }
  
    function parseEndTag (tagName, start, end) {
      var pos, lowerCasedTagName;
      if (start == null) { start = index; }
      if (end == null) { end = index; }
  
      // Find the closest opened tag of the same type
      if (tagName) {
        lowerCasedTagName = tagName.toLowerCase();
        for (pos = stack.length - 1; pos >= 0; pos--) {
          if (stack[pos].lowerCasedTag === lowerCasedTagName) {
            break
          }
        }
      } else {
        // If no tag name is provided, clean shop
        pos = 0;
      }
  
      if (pos >= 0) {
        // Close all the open elements, up the stack
        for (var i = stack.length - 1; i >= pos; i--) {
          if ( true &&
            (i > pos || !tagName) &&
            options.warn
          ) {
            options.warn(
              ("tag <" + (stack[i].tag) + "> has no matching end tag."),
              { start: stack[i].start, end: stack[i].end }
            );
          }
          if (options.end) {
            options.end(stack[i].tag, start, end);
          }
        }
  
        // Remove the open elements from the stack
        stack.length = pos;
        lastTag = pos && stack[pos - 1].tag;
      } else if (lowerCasedTagName === 'br') {
        if (options.start) {
          options.start(tagName, [], true, start, end);
        }
      } else if (lowerCasedTagName === 'p') {
        if (options.start) {
          options.start(tagName, [], false, start, end);
        }
        if (options.end) {
          options.end(tagName, start, end);
        }
      }
    }
  }
  
  /*  */
  
  var onRE = /^@|^v-on:/;
  var dirRE = /^v-|^@|^:|^#/;
  var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
  var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
  var stripParensRE = /^\(|\)$/g;
  var dynamicArgRE = /^\[.*\]$/;
  
  var argRE = /:(.*)$/;
  var bindRE = /^:|^\.|^v-bind:/;
  var modifierRE = /\.[^.\]]+(?=[^\]]*$)/g;
  
  var slotRE = /^v-slot(:|$)|^#/;
  
  var lineBreakRE = /[\r\n]/;
  var whitespaceRE$1 = /[ \f\t\r\n]+/g;
  
  var invalidAttributeRE = /[\s"'<>\/=]/;
  
  var decodeHTMLCached = cached(he.decode);
  
  var emptySlotScopeToken = "_empty_";
  
  // configurable state
  var warn$2;
  var delimiters;
  var transforms;
  var preTransforms;
  var postTransforms;
  var platformIsPreTag;
  var platformMustUseProp;
  var platformGetTagNamespace;
  var maybeComponent;
  
  function createASTElement (
    tag,
    attrs,
    parent
  ) {
    return {
      type: 1,
      tag: tag,
      attrsList: attrs,
      attrsMap: makeAttrsMap(attrs),
      rawAttrsMap: {},
      parent: parent,
      children: []
    }
  }
  
  /**
   * Convert HTML string to AST.
   */
  function parse (
    template,
    options
  ) {
    warn$2 = options.warn || baseWarn;
  
    platformIsPreTag = options.isPreTag || no;
    platformMustUseProp = options.mustUseProp || no;
    platformGetTagNamespace = options.getTagNamespace || no;
    var isReservedTag = options.isReservedTag || no;
    maybeComponent = function (el) { return !!(
      el.component ||
      el.attrsMap[':is'] ||
      el.attrsMap['v-bind:is'] ||
      !(el.attrsMap.is ? isReservedTag(el.attrsMap.is) : isReservedTag(el.tag))
    ); };
    transforms = pluckModuleFunction(options.modules, 'transformNode');
    preTransforms = pluckModuleFunction(options.modules, 'preTransformNode');
    postTransforms = pluckModuleFunction(options.modules, 'postTransformNode');
  
    delimiters = options.delimiters;
  
    var stack = [];
    var preserveWhitespace = options.preserveWhitespace !== false;
    var whitespaceOption = options.whitespace;
    var root;
    var currentParent;
    var inVPre = false;
    var inPre = false;
    var warned = false;
  
    function warnOnce (msg, range) {
      if (!warned) {
        warned = true;
        warn$2(msg, range);
      }
    }
  
    function closeElement (element) {
      trimEndingWhitespace(element);
      if (!inVPre && !element.processed) {
        element = processElement(element, options);
      }
      // tree management
      if (!stack.length && element !== root) {
        // allow root elements with v-if, v-else-if and v-else
        if (root.if && (element.elseif || element.else)) {
          if (true) {
            checkRootConstraints(element);
          }
          addIfCondition(root, {
            exp: element.elseif,
            block: element
          });
        } else if (true) {
          warnOnce(
            "Component template should contain exactly one root element. " +
            "If you are using v-if on multiple elements, " +
            "use v-else-if to chain them instead.",
            { start: element.start }
          );
        }
      }
      if (currentParent && !element.forbidden) {
        if (element.elseif || element.else) {
          processIfConditions(element, currentParent);
        } else {
          if (element.slotScope) {
            // scoped slot
            // keep it in the children list so that v-else(-if) conditions can
            // find it as the prev node.
            var name = element.slotTarget || '"default"'
            ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
          }
          currentParent.children.push(element);
          element.parent = currentParent;
        }
      }
  
      // final children cleanup
      // filter out scoped slots
      element.children = element.children.filter(function (c) { return !(c).slotScope; });
      // remove trailing whitespace node again
      trimEndingWhitespace(element);
  
      // check pre state
      if (element.pre) {
        inVPre = false;
      }
      if (platformIsPreTag(element.tag)) {
        inPre = false;
      }
      // apply post-transforms
      for (var i = 0; i < postTransforms.length; i++) {
        postTransforms[i](element, options);
      }
    }
  
    function trimEndingWhitespace (el) {
      // remove trailing whitespace node
      if (!inPre) {
        var lastNode;
        while (
          (lastNode = el.children[el.children.length - 1]) &&
          lastNode.type === 3 &&
          lastNode.text === ' '
        ) {
          el.children.pop();
        }
      }
    }
  
    function checkRootConstraints (el) {
      if (el.tag === 'slot' || el.tag === 'template') {
        warnOnce(
          "Cannot use <" + (el.tag) + "> as component root element because it may " +
          'contain multiple nodes.',
          { start: el.start }
        );
      }
      if (el.attrsMap.hasOwnProperty('v-for')) {
        warnOnce(
          'Cannot use v-for on stateful component root element because ' +
          'it renders multiple elements.',
          el.rawAttrsMap['v-for']
        );
      }
    }
  
    parseHTML(template, {
      warn: warn$2,
      expectHTML: options.expectHTML,
      isUnaryTag: options.isUnaryTag,
      canBeLeftOpenTag: options.canBeLeftOpenTag,
      shouldDecodeNewlines: options.shouldDecodeNewlines,
      shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
      shouldKeepComment: options.comments,
      outputSourceRange: options.outputSourceRange,
      start: function start (tag, attrs, unary, start$1, end) {
        // check namespace.
        // inherit parent ns if there is one
        var ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag);
  
        // handle IE svg bug
        /* istanbul ignore if */
        if (isIE && ns === 'svg') {
          attrs = guardIESVGBug(attrs);
        }
  
        var element = createASTElement(tag, attrs, currentParent);
        if (ns) {
          element.ns = ns;
        }
  
        if (true) {
          if (options.outputSourceRange) {
            element.start = start$1;
            element.end = end;
            element.rawAttrsMap = element.attrsList.reduce(function (cumulated, attr) {
              cumulated[attr.name] = attr;
              return cumulated
            }, {});
          }
          attrs.forEach(function (attr) {
            if (invalidAttributeRE.test(attr.name)) {
              warn$2(
                "Invalid dynamic argument expression: attribute names cannot contain " +
                "spaces, quotes, <, >, / or =.",
                {
                  start: attr.start + attr.name.indexOf("["),
                  end: attr.start + attr.name.length
                }
              );
            }
          });
        }
  
        if (isForbiddenTag(element) && !isServerRendering()) {
          element.forbidden = true;
           true && warn$2(
            'Templates should only be responsible for mapping the state to the ' +
            'UI. Avoid placing tags with side-effects in your templates, such as ' +
            "<" + tag + ">" + ', as they will not be parsed.',
            { start: element.start }
          );
        }
  
        // apply pre-transforms
        for (var i = 0; i < preTransforms.length; i++) {
          element = preTransforms[i](element, options) || element;
        }
  
        if (!inVPre) {
          processPre(element);
          if (element.pre) {
            inVPre = true;
          }
        }
        if (platformIsPreTag(element.tag)) {
          inPre = true;
        }
        if (inVPre) {
          processRawAttrs(element);
        } else if (!element.processed) {
          // structural directives
          processFor(element);
          processIf(element);
          processOnce(element);
        }
  
        if (!root) {
          root = element;
          if (true) {
            checkRootConstraints(root);
          }
        }
  
        if (!unary) {
          currentParent = element;
          stack.push(element);
        } else {
          closeElement(element);
        }
      },
  
      end: function end (tag, start, end$1) {
        var element = stack[stack.length - 1];
        // pop stack
        stack.length -= 1;
        currentParent = stack[stack.length - 1];
        if ( true && options.outputSourceRange) {
          element.end = end$1;
        }
        closeElement(element);
      },
  
      chars: function chars (text, start, end) {
        if (!currentParent) {
          if (true) {
            if (text === template) {
              warnOnce(
                'Component template requires a root element, rather than just text.',
                { start: start }
              );
            } else if ((text = text.trim())) {
              warnOnce(
                ("text \"" + text + "\" outside root element will be ignored."),
                { start: start }
              );
            }
          }
          return
        }
        // IE textarea placeholder bug
        /* istanbul ignore if */
        if (isIE &&
          currentParent.tag === 'textarea' &&
          currentParent.attrsMap.placeholder === text
        ) {
          return
        }
        var children = currentParent.children;
        if (inPre || text.trim()) {
          text = isTextTag(currentParent) ? text : decodeHTMLCached(text);
        } else if (!children.length) {
          // remove the whitespace-only node right after an opening tag
          text = '';
        } else if (whitespaceOption) {
          if (whitespaceOption === 'condense') {
            // in condense mode, remove the whitespace node if it contains
            // line break, otherwise condense to a single space
            text = lineBreakRE.test(text) ? '' : ' ';
          } else {
            text = ' ';
          }
        } else {
          text = preserveWhitespace ? ' ' : '';
        }
        if (text) {
          if (!inPre && whitespaceOption === 'condense') {
            // condense consecutive whitespaces into single space
            text = text.replace(whitespaceRE$1, ' ');
          }
          var res;
          var child;
          if (!inVPre && text !== ' ' && (res = parseText(text, delimiters))) {
            child = {
              type: 2,
              expression: res.expression,
              tokens: res.tokens,
              text: text
            };
          } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {
            child = {
              type: 3,
              text: text
            };
          }
          if (child) {
            if ( true && options.outputSourceRange) {
              child.start = start;
              child.end = end;
            }
            children.push(child);
          }
        }
      },
      comment: function comment (text, start, end) {
        // adding anything as a sibling to the root node is forbidden
        // comments should still be allowed, but ignored
        if (currentParent) {
          var child = {
            type: 3,
            text: text,
            isComment: true
          };
          if ( true && options.outputSourceRange) {
            child.start = start;
            child.end = end;
          }
          currentParent.children.push(child);
        }
      }
    });
    return root
  }
  
  function processPre (el) {
    if (getAndRemoveAttr(el, 'v-pre') != null) {
      el.pre = true;
    }
  }
  
  function processRawAttrs (el) {
    var list = el.attrsList;
    var len = list.length;
    if (len) {
      var attrs = el.attrs = new Array(len);
      for (var i = 0; i < len; i++) {
        attrs[i] = {
          name: list[i].name,
          value: JSON.stringify(list[i].value)
        };
        if (list[i].start != null) {
          attrs[i].start = list[i].start;
          attrs[i].end = list[i].end;
        }
      }
    } else if (!el.pre) {
      // non root node in pre blocks with no attributes
      el.plain = true;
    }
  }
  
  function processElement (
    element,
    options
  ) {
    processKey(element);
  
    // determine whether this is a plain element after
    // removing structural attributes
    element.plain = (
      !element.key &&
      !element.scopedSlots &&
      !element.attrsList.length
    );
  
    processRef(element);
    processSlotContent(element);
    processSlotOutlet(element);
    processComponent(element);
    for (var i = 0; i < transforms.length; i++) {
      element = transforms[i](element, options) || element;
    }
    processAttrs(element);
    return element
  }
  
  function processKey (el) {
    var exp = getBindingAttr(el, 'key');
    if (exp) {
      if (true) {
        if (el.tag === 'template') {
          warn$2(
            "<template> cannot be keyed. Place the key on real elements instead.",
            getRawBindingAttr(el, 'key')
          );
        }
        if (el.for) {
          var iterator = el.iterator2 || el.iterator1;
          var parent = el.parent;
          if (iterator && iterator === exp && parent && parent.tag === 'transition-group') {
            warn$2(
              "Do not use v-for index as key on <transition-group> children, " +
              "this is the same as not using keys.",
              getRawBindingAttr(el, 'key'),
              true /* tip */
            );
          }
        }
      }
      el.key = exp;
    }
  }
  
  function processRef (el) {
    var ref = getBindingAttr(el, 'ref');
    if (ref) {
      el.ref = ref;
      el.refInFor = checkInFor(el);
    }
  }
  
  function processFor (el) {
    var exp;
    if ((exp = getAndRemoveAttr(el, 'v-for'))) {
      var res = parseFor(exp);
      if (res) {
        extend(el, res);
      } else if (true) {
        warn$2(
          ("Invalid v-for expression: " + exp),
          el.rawAttrsMap['v-for']
        );
      }
    }
  }
  
  
  
  function parseFor (exp) {
    var inMatch = exp.match(forAliasRE);
    if (!inMatch) { return }
    var res = {};
    res.for = inMatch[2].trim();
    var alias = inMatch[1].trim().replace(stripParensRE, '');
    var iteratorMatch = alias.match(forIteratorRE);
    if (iteratorMatch) {
      res.alias = alias.replace(forIteratorRE, '').trim();
      res.iterator1 = iteratorMatch[1].trim();
      if (iteratorMatch[2]) {
        res.iterator2 = iteratorMatch[2].trim();
      }
    } else {
      res.alias = alias;
    }
    return res
  }
  
  function processIf (el) {
    var exp = getAndRemoveAttr(el, 'v-if');
    if (exp) {
      el.if = exp;
      addIfCondition(el, {
        exp: exp,
        block: el
      });
    } else {
      if (getAndRemoveAttr(el, 'v-else') != null) {
        el.else = true;
      }
      var elseif = getAndRemoveAttr(el, 'v-else-if');
      if (elseif) {
        el.elseif = elseif;
      }
    }
  }
  
  function processIfConditions (el, parent) {
    var prev = findPrevElement(parent.children);
    if (prev && prev.if) {
      addIfCondition(prev, {
        exp: el.elseif,
        block: el
      });
    } else if (true) {
      warn$2(
        "v-" + (el.elseif ? ('else-if="' + el.elseif + '"') : 'else') + " " +
        "used on element <" + (el.tag) + "> without corresponding v-if.",
        el.rawAttrsMap[el.elseif ? 'v-else-if' : 'v-else']
      );
    }
  }
  
  function findPrevElement (children) {
    var i = children.length;
    while (i--) {
      if (children[i].type === 1) {
        return children[i]
      } else {
        if ( true && children[i].text !== ' ') {
          warn$2(
            "text \"" + (children[i].text.trim()) + "\" between v-if and v-else(-if) " +
            "will be ignored.",
            children[i]
          );
        }
        children.pop();
      }
    }
  }
  
  function addIfCondition (el, condition) {
    if (!el.ifConditions) {
      el.ifConditions = [];
    }
    el.ifConditions.push(condition);
  }
  
  function processOnce (el) {
    var once$$1 = getAndRemoveAttr(el, 'v-once');
    if (once$$1 != null) {
      el.once = true;
    }
  }
  
  // handle content being passed to a component as slot,
  // e.g. <template slot="xxx">, <div slot-scope="xxx">
  function processSlotContent (el) {
    var slotScope;
    if (el.tag === 'template') {
      slotScope = getAndRemoveAttr(el, 'scope');
      /* istanbul ignore if */
      if ( true && slotScope) {
        warn$2(
          "the \"scope\" attribute for scoped slots have been deprecated and " +
          "replaced by \"slot-scope\" since 2.5. The new \"slot-scope\" attribute " +
          "can also be used on plain elements in addition to <template> to " +
          "denote scoped slots.",
          el.rawAttrsMap['scope'],
          true
        );
      }
      el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
    } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
      /* istanbul ignore if */
      if ( true && el.attrsMap['v-for']) {
        warn$2(
          "Ambiguous combined usage of slot-scope and v-for on <" + (el.tag) + "> " +
          "(v-for takes higher priority). Use a wrapper <template> for the " +
          "scoped slot to make it clearer.",
          el.rawAttrsMap['slot-scope'],
          true
        );
      }
      el.slotScope = slotScope;
    }
  
    // slot="xxx"
    var slotTarget = getBindingAttr(el, 'slot');
    if (slotTarget) {
      el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
      el.slotTargetDynamic = !!(el.attrsMap[':slot'] || el.attrsMap['v-bind:slot']);
      // preserve slot as an attribute for native shadow DOM compat
      // only for non-scoped slots.
      if (el.tag !== 'template' && !el.slotScope) {
        addAttr(el, 'slot', slotTarget, getRawBindingAttr(el, 'slot'));
      }
    }
  
    // 2.6 v-slot syntax
    {
      if (el.tag === 'template') {
        // v-slot on <template>
        var slotBinding = getAndRemoveAttrByRegex(el, slotRE);
        if (slotBinding) {
          if (true) {
            if (el.slotTarget || el.slotScope) {
              warn$2(
                "Unexpected mixed usage of different slot syntaxes.",
                el
              );
            }
            if (el.parent && !maybeComponent(el.parent)) {
              warn$2(
                "<template v-slot> can only appear at the root level inside " +
                "the receiving component",
                el
              );
            }
          }
          var ref = getSlotName(slotBinding);
          var name = ref.name;
          var dynamic = ref.dynamic;
          el.slotTarget = name;
          el.slotTargetDynamic = dynamic;
          el.slotScope = slotBinding.value || emptySlotScopeToken; // force it into a scoped slot for perf
        }
      } else {
        // v-slot on component, denotes default slot
        var slotBinding$1 = getAndRemoveAttrByRegex(el, slotRE);
        if (slotBinding$1) {
          if (true) {
            if (!maybeComponent(el)) {
              warn$2(
                "v-slot can only be used on components or <template>.",
                slotBinding$1
              );
            }
            if (el.slotScope || el.slotTarget) {
              warn$2(
                "Unexpected mixed usage of different slot syntaxes.",
                el
              );
            }
            if (el.scopedSlots) {
              warn$2(
                "To avoid scope ambiguity, the default slot should also use " +
                "<template> syntax when there are other named slots.",
                slotBinding$1
              );
            }
          }
          // add the component's children to its default slot
          var slots = el.scopedSlots || (el.scopedSlots = {});
          var ref$1 = getSlotName(slotBinding$1);
          var name$1 = ref$1.name;
          var dynamic$1 = ref$1.dynamic;
          var slotContainer = slots[name$1] = createASTElement('template', [], el);
          slotContainer.slotTarget = name$1;
          slotContainer.slotTargetDynamic = dynamic$1;
          slotContainer.children = el.children.filter(function (c) {
            if (!c.slotScope) {
              c.parent = slotContainer;
              return true
            }
          });
          slotContainer.slotScope = slotBinding$1.value || emptySlotScopeToken;
          // remove children as they are returned from scopedSlots now
          el.children = [];
          // mark el non-plain so data gets generated
          el.plain = false;
        }
      }
    }
  }
  
  function getSlotName (binding) {
    var name = binding.name.replace(slotRE, '');
    if (!name) {
      if (binding.name[0] !== '#') {
        name = 'default';
      } else if (true) {
        warn$2(
          "v-slot shorthand syntax requires a slot name.",
          binding
        );
      }
    }
    return dynamicArgRE.test(name)
      // dynamic [name]
      ? { name: name.slice(1, -1), dynamic: true }
      // static name
      : { name: ("\"" + name + "\""), dynamic: false }
  }
  
  // handle <slot/> outlets
  function processSlotOutlet (el) {
    if (el.tag === 'slot') {
      el.slotName = getBindingAttr(el, 'name');
      if ( true && el.key) {
        warn$2(
          "`key` does not work on <slot> because slots are abstract outlets " +
          "and can possibly expand into multiple elements. " +
          "Use the key on a wrapping element instead.",
          getRawBindingAttr(el, 'key')
        );
      }
    }
  }
  
  function processComponent (el) {
    var binding;
    if ((binding = getBindingAttr(el, 'is'))) {
      el.component = binding;
    }
    if (getAndRemoveAttr(el, 'inline-template') != null) {
      el.inlineTemplate = true;
    }
  }
  
  function processAttrs (el) {
    var list = el.attrsList;
    var i, l, name, rawName, value, modifiers, syncGen, isDynamic;
    for (i = 0, l = list.length; i < l; i++) {
      name = rawName = list[i].name;
      value = list[i].value;
      if (dirRE.test(name)) {
        // mark element as dynamic
        el.hasBindings = true;
        // modifiers
        modifiers = parseModifiers(name.replace(dirRE, ''));
        // support .foo shorthand syntax for the .prop modifier
        if (modifiers) {
          name = name.replace(modifierRE, '');
        }
        if (bindRE.test(name)) { // v-bind
          name = name.replace(bindRE, '');
          value = parseFilters(value);
          isDynamic = dynamicArgRE.test(name);
          if (isDynamic) {
            name = name.slice(1, -1);
          }
          if (
             true &&
            value.trim().length === 0
          ) {
            warn$2(
              ("The value for a v-bind expression cannot be empty. Found in \"v-bind:" + name + "\"")
            );
          }
          if (modifiers) {
            if (modifiers.prop && !isDynamic) {
              name = camelize(name);
              if (name === 'innerHtml') { name = 'innerHTML'; }
            }
            if (modifiers.camel && !isDynamic) {
              name = camelize(name);
            }
            if (modifiers.sync) {
              syncGen = genAssignmentCode(value, "$event");
              if (!isDynamic) {
                addHandler(
                  el,
                  ("update:" + (camelize(name))),
                  syncGen,
                  null,
                  false,
                  warn$2,
                  list[i]
                );
                if (hyphenate(name) !== camelize(name)) {
                  addHandler(
                    el,
                    ("update:" + (hyphenate(name))),
                    syncGen,
                    null,
                    false,
                    warn$2,
                    list[i]
                  );
                }
              } else {
                // handler w/ dynamic event name
                addHandler(
                  el,
                  ("\"update:\"+(" + name + ")"),
                  syncGen,
                  null,
                  false,
                  warn$2,
                  list[i],
                  true // dynamic
                );
              }
            }
          }
          if ((modifiers && modifiers.prop) || (
            !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
          )) {
            addProp(el, name, value, list[i], isDynamic);
          } else {
            addAttr(el, name, value, list[i], isDynamic);
          }
        } else if (onRE.test(name)) { // v-on
          name = name.replace(onRE, '');
          isDynamic = dynamicArgRE.test(name);
          if (isDynamic) {
            name = name.slice(1, -1);
          }
          addHandler(el, name, value, modifiers, false, warn$2, list[i], isDynamic);
        } else { // normal directives
          name = name.replace(dirRE, '');
          // parse arg
          var argMatch = name.match(argRE);
          var arg = argMatch && argMatch[1];
          isDynamic = false;
          if (arg) {
            name = name.slice(0, -(arg.length + 1));
            if (dynamicArgRE.test(arg)) {
              arg = arg.slice(1, -1);
              isDynamic = true;
            }
          }
          addDirective(el, name, rawName, value, arg, isDynamic, modifiers, list[i]);
          if ( true && name === 'model') {
            checkForAliasModel(el, value);
          }
        }
      } else {
        // literal attribute
        if (true) {
          var res = parseText(value, delimiters);
          if (res) {
            warn$2(
              name + "=\"" + value + "\": " +
              'Interpolation inside attributes has been removed. ' +
              'Use v-bind or the colon shorthand instead. For example, ' +
              'instead of <div id="{{ val }}">, use <div :id="val">.',
              list[i]
            );
          }
        }
        addAttr(el, name, JSON.stringify(value), list[i]);
        // #6887 firefox doesn't update muted state if set via attribute
        // even immediately after element creation
        if (!el.component &&
            name === 'muted' &&
            platformMustUseProp(el.tag, el.attrsMap.type, name)) {
          addProp(el, name, 'true', list[i]);
        }
      }
    }
  }
  
  function checkInFor (el) {
    var parent = el;
    while (parent) {
      if (parent.for !== undefined) {
        return true
      }
      parent = parent.parent;
    }
    return false
  }
  
  function parseModifiers (name) {
    var match = name.match(modifierRE);
    if (match) {
      var ret = {};
      match.forEach(function (m) { ret[m.slice(1)] = true; });
      return ret
    }
  }
  
  function makeAttrsMap (attrs) {
    var map = {};
    for (var i = 0, l = attrs.length; i < l; i++) {
      if (
         true &&
        map[attrs[i].name] && !isIE && !isEdge
      ) {
        warn$2('duplicate attribute: ' + attrs[i].name, attrs[i]);
      }
      map[attrs[i].name] = attrs[i].value;
    }
    return map
  }
  
  // for script (e.g. type="x/template") or style, do not decode content
  function isTextTag (el) {
    return el.tag === 'script' || el.tag === 'style'
  }
  
  function isForbiddenTag (el) {
    return (
      el.tag === 'style' ||
      (el.tag === 'script' && (
        !el.attrsMap.type ||
        el.attrsMap.type === 'text/javascript'
      ))
    )
  }
  
  var ieNSBug = /^xmlns:NS\d+/;
  var ieNSPrefix = /^NS\d+:/;
  
  /* istanbul ignore next */
  function guardIESVGBug (attrs) {
    var res = [];
    for (var i = 0; i < attrs.length; i++) {
      var attr = attrs[i];
      if (!ieNSBug.test(attr.name)) {
        attr.name = attr.name.replace(ieNSPrefix, '');
        res.push(attr);
      }
    }
    return res
  }
  
  function checkForAliasModel (el, value) {
    var _el = el;
    while (_el) {
      if (_el.for && _el.alias === value) {
        warn$2(
          "<" + (el.tag) + " v-model=\"" + value + "\">: " +
          "You are binding v-model directly to a v-for iteration alias. " +
          "This will not be able to modify the v-for source array because " +
          "writing to the alias is like modifying a function local variable. " +
          "Consider using an array of objects and use v-model on an object property instead.",
          el.rawAttrsMap['v-model']
        );
      }
      _el = _el.parent;
    }
  }
  
  /*  */
  
  function preTransformNode (el, options) {
    if (el.tag === 'input') {
      var map = el.attrsMap;
      if (!map['v-model']) {
        return
      }
  
      var typeBinding;
      if (map[':type'] || map['v-bind:type']) {
        typeBinding = getBindingAttr(el, 'type');
      }
      if (!map.type && !typeBinding && map['v-bind']) {
        typeBinding = "(" + (map['v-bind']) + ").type";
      }
  
      if (typeBinding) {
        var ifCondition = getAndRemoveAttr(el, 'v-if', true);
        var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
        var hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
        var elseIfCondition = getAndRemoveAttr(el, 'v-else-if', true);
        // 1. checkbox
        var branch0 = cloneASTElement(el);
        // process for on the main node
        processFor(branch0);
        addRawAttr(branch0, 'type', 'checkbox');
        processElement(branch0, options);
        branch0.processed = true; // prevent it from double-processed
        branch0.if = "(" + typeBinding + ")==='checkbox'" + ifConditionExtra;
        addIfCondition(branch0, {
          exp: branch0.if,
          block: branch0
        });
        // 2. add radio else-if condition
        var branch1 = cloneASTElement(el);
        getAndRemoveAttr(branch1, 'v-for', true);
        addRawAttr(branch1, 'type', 'radio');
        processElement(branch1, options);
        addIfCondition(branch0, {
          exp: "(" + typeBinding + ")==='radio'" + ifConditionExtra,
          block: branch1
        });
        // 3. other
        var branch2 = cloneASTElement(el);
        getAndRemoveAttr(branch2, 'v-for', true);
        addRawAttr(branch2, ':type', typeBinding);
        processElement(branch2, options);
        addIfCondition(branch0, {
          exp: ifCondition,
          block: branch2
        });
  
        if (hasElse) {
          branch0.else = true;
        } else if (elseIfCondition) {
          branch0.elseif = elseIfCondition;
        }
  
        return branch0
      }
    }
  }
  
  function cloneASTElement (el) {
    return createASTElement(el.tag, el.attrsList.slice(), el.parent)
  }
  
  var model$1 = {
    preTransformNode: preTransformNode
  };
  
  var modules$1 = [
    klass$1,
    style$1,
    model$1
  ];
  
  /*  */
  
  function text (el, dir) {
    if (dir.value) {
      addProp(el, 'textContent', ("_s(" + (dir.value) + ")"), dir);
    }
  }
  
  /*  */
  
  function html (el, dir) {
    if (dir.value) {
      addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"), dir);
    }
  }
  
  var directives$1 = {
    model: model,
    text: text,
    html: html
  };
  
  /*  */
  
  var baseOptions = {
    expectHTML: true,
    modules: modules$1,
    directives: directives$1,
    isPreTag: isPreTag,
    isUnaryTag: isUnaryTag,
    mustUseProp: mustUseProp,
    canBeLeftOpenTag: canBeLeftOpenTag,
    isReservedTag: isReservedTag,
    getTagNamespace: getTagNamespace,
    staticKeys: genStaticKeys(modules$1)
  };
  
  /*  */
  
  var isStaticKey;
  var isPlatformReservedTag;
  
  var genStaticKeysCached = cached(genStaticKeys$1);
  
  /**
   * Goal of the optimizer: walk the generated template AST tree
   * and detect sub-trees that are purely static, i.e. parts of
   * the DOM that never needs to change.
   *
   * Once we detect these sub-trees, we can:
   *
   * 1. Hoist them into constants, so that we no longer need to
   *    create fresh nodes for them on each re-render;
   * 2. Completely skip them in the patching process.
   */
  function optimize (root, options) {
    if (!root) { return }
    isStaticKey = genStaticKeysCached(options.staticKeys || '');
    isPlatformReservedTag = options.isReservedTag || no;
    // first pass: mark all non-static nodes.
    markStatic$1(root);
    // second pass: mark static roots.
    markStaticRoots(root, false);
  }
  
  function genStaticKeys$1 (keys) {
    return makeMap(
      'type,tag,attrsList,attrsMap,plain,parent,children,attrs,start,end,rawAttrsMap' +
      (keys ? ',' + keys : '')
    )
  }
  
  function markStatic$1 (node) {
    node.static = isStatic(node);
    if (node.type === 1) {
      // do not make component slot content static. this avoids
      // 1. components not able to mutate slot nodes
      // 2. static slot content fails for hot-reloading
      if (
        !isPlatformReservedTag(node.tag) &&
        node.tag !== 'slot' &&
        node.attrsMap['inline-template'] == null
      ) {
        return
      }
      for (var i = 0, l = node.children.length; i < l; i++) {
        var child = node.children[i];
        markStatic$1(child);
        if (!child.static) {
          node.static = false;
        }
      }
      if (node.ifConditions) {
        for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
          var block = node.ifConditions[i$1].block;
          markStatic$1(block);
          if (!block.static) {
            node.static = false;
          }
        }
      }
    }
  }
  
  function markStaticRoots (node, isInFor) {
    if (node.type === 1) {
      if (node.static || node.once) {
        node.staticInFor = isInFor;
      }
      // For a node to qualify as a static root, it should have children that
      // are not just static text. Otherwise the cost of hoisting out will
      // outweigh the benefits and it's better off to just always render it fresh.
      if (node.static && node.children.length && !(
        node.children.length === 1 &&
        node.children[0].type === 3
      )) {
        node.staticRoot = true;
        return
      } else {
        node.staticRoot = false;
      }
      if (node.children) {
        for (var i = 0, l = node.children.length; i < l; i++) {
          markStaticRoots(node.children[i], isInFor || !!node.for);
        }
      }
      if (node.ifConditions) {
        for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
          markStaticRoots(node.ifConditions[i$1].block, isInFor);
        }
      }
    }
  }
  
  function isStatic (node) {
    if (node.type === 2) { // expression
      return false
    }
    if (node.type === 3) { // text
      return true
    }
    return !!(node.pre || (
      !node.hasBindings && // no dynamic bindings
      !node.if && !node.for && // not v-if or v-for or v-else
      !isBuiltInTag(node.tag) && // not a built-in
      isPlatformReservedTag(node.tag) && // not a component
      !isDirectChildOfTemplateFor(node) &&
      Object.keys(node).every(isStaticKey)
    ))
  }
  
  function isDirectChildOfTemplateFor (node) {
    while (node.parent) {
      node = node.parent;
      if (node.tag !== 'template') {
        return false
      }
      if (node.for) {
        return true
      }
    }
    return false
  }
  
  /*  */
  
  var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function(?:\s+[\w$]+)?\s*\(/;
  var fnInvokeRE = /\([^)]*?\);*$/;
  var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
  
  // KeyboardEvent.keyCode aliases
  var keyCodes = {
    esc: 27,
    tab: 9,
    enter: 13,
    space: 32,
    up: 38,
    left: 37,
    right: 39,
    down: 40,
    'delete': [8, 46]
  };
  
  // KeyboardEvent.key aliases
  var keyNames = {
    // #7880: IE11 and Edge use `Esc` for Escape key name.
    esc: ['Esc', 'Escape'],
    tab: 'Tab',
    enter: 'Enter',
    // #9112: IE11 uses `Spacebar` for Space key name.
    space: [' ', 'Spacebar'],
    // #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
    up: ['Up', 'ArrowUp'],
    left: ['Left', 'ArrowLeft'],
    right: ['Right', 'ArrowRight'],
    down: ['Down', 'ArrowDown'],
    // #9112: IE11 uses `Del` for Delete key name.
    'delete': ['Backspace', 'Delete', 'Del']
  };
  
  // #4868: modifiers that prevent the execution of the listener
  // need to explicitly return null so that we can determine whether to remove
  // the listener for .once
  var genGuard = function (condition) { return ("if(" + condition + ")return null;"); };
  
  var modifierCode = {
    stop: '$event.stopPropagation();',
    prevent: '$event.preventDefault();',
    self: genGuard("$event.target !== $event.currentTarget"),
    ctrl: genGuard("!$event.ctrlKey"),
    shift: genGuard("!$event.shiftKey"),
    alt: genGuard("!$event.altKey"),
    meta: genGuard("!$event.metaKey"),
    left: genGuard("'button' in $event && $event.button !== 0"),
    middle: genGuard("'button' in $event && $event.button !== 1"),
    right: genGuard("'button' in $event && $event.button !== 2")
  };
  
  function genHandlers (
    events,
    isNative
  ) {
    var prefix = isNative ? 'nativeOn:' : 'on:';
    var staticHandlers = "";
    var dynamicHandlers = "";
    for (var name in events) {
      var handlerCode = genHandler(events[name]);
      if (events[name] && events[name].dynamic) {
        dynamicHandlers += name + "," + handlerCode + ",";
      } else {
        staticHandlers += "\"" + name + "\":" + handlerCode + ",";
      }
    }
    staticHandlers = "{" + (staticHandlers.slice(0, -1)) + "}";
    if (dynamicHandlers) {
      return prefix + "_d(" + staticHandlers + ",[" + (dynamicHandlers.slice(0, -1)) + "])"
    } else {
      return prefix + staticHandlers
    }
  }
  
  function genHandler (handler) {
    if (!handler) {
      return 'function(){}'
    }
  
    if (Array.isArray(handler)) {
      return ("[" + (handler.map(function (handler) { return genHandler(handler); }).join(',')) + "]")
    }
  
    var isMethodPath = simplePathRE.test(handler.value);
    var isFunctionExpression = fnExpRE.test(handler.value);
    var isFunctionInvocation = simplePathRE.test(handler.value.replace(fnInvokeRE, ''));
  
    if (!handler.modifiers) {
      if (isMethodPath || isFunctionExpression) {
        return handler.value
      }
      return ("function($event){" + (isFunctionInvocation ? ("return " + (handler.value)) : handler.value) + "}") // inline statement
    } else {
      var code = '';
      var genModifierCode = '';
      var keys = [];
      for (var key in handler.modifiers) {
        if (modifierCode[key]) {
          genModifierCode += modifierCode[key];
          // left/right
          if (keyCodes[key]) {
            keys.push(key);
          }
        } else if (key === 'exact') {
          var modifiers = (handler.modifiers);
          genModifierCode += genGuard(
            ['ctrl', 'shift', 'alt', 'meta']
              .filter(function (keyModifier) { return !modifiers[keyModifier]; })
              .map(function (keyModifier) { return ("$event." + keyModifier + "Key"); })
              .join('||')
          );
        } else {
          keys.push(key);
        }
      }
      if (keys.length) {
        code += genKeyFilter(keys);
      }
      // Make sure modifiers like prevent and stop get executed after key filtering
      if (genModifierCode) {
        code += genModifierCode;
      }
      var handlerCode = isMethodPath
        ? ("return " + (handler.value) + ".apply(null, arguments)")
        : isFunctionExpression
          ? ("return (" + (handler.value) + ").apply(null, arguments)")
          : isFunctionInvocation
            ? ("return " + (handler.value))
            : handler.value;
      return ("function($event){" + code + handlerCode + "}")
    }
  }
  
  function genKeyFilter (keys) {
    return (
      // make sure the key filters only apply to KeyboardEvents
      // #9441: can't use 'keyCode' in $event because Chrome autofill fires fake
      // key events that do not have keyCode property...
      "if(!$event.type.indexOf('key')&&" +
      (keys.map(genFilterCode).join('&&')) + ")return null;"
    )
  }
  
  function genFilterCode (key) {
    var keyVal = parseInt(key, 10);
    if (keyVal) {
      return ("$event.keyCode!==" + keyVal)
    }
    var keyCode = keyCodes[key];
    var keyName = keyNames[key];
    return (
      "_k($event.keyCode," +
      (JSON.stringify(key)) + "," +
      (JSON.stringify(keyCode)) + "," +
      "$event.key," +
      "" + (JSON.stringify(keyName)) +
      ")"
    )
  }
  
  /*  */
  
  function on (el, dir) {
    if ( true && dir.modifiers) {
      warn("v-on without argument does not support modifiers.");
    }
    el.wrapListeners = function (code) { return ("_g(" + code + "," + (dir.value) + ")"); };
  }
  
  /*  */
  
  function bind$1 (el, dir) {
    el.wrapData = function (code) {
      return ("_b(" + code + ",'" + (el.tag) + "'," + (dir.value) + "," + (dir.modifiers && dir.modifiers.prop ? 'true' : 'false') + (dir.modifiers && dir.modifiers.sync ? ',true' : '') + ")")
    };
  }
  
  /*  */
  
  var baseDirectives = {
    on: on,
    bind: bind$1,
    cloak: noop
  };
  
  /*  */
  
  
  
  
  
  var CodegenState = function CodegenState (options) {
    this.options = options;
    this.warn = options.warn || baseWarn;
    this.transforms = pluckModuleFunction(options.modules, 'transformCode');
    this.dataGenFns = pluckModuleFunction(options.modules, 'genData');
    this.directives = extend(extend({}, baseDirectives), options.directives);
    var isReservedTag = options.isReservedTag || no;
    this.maybeComponent = function (el) { return !!el.component || !isReservedTag(el.tag); };
    this.onceId = 0;
    this.staticRenderFns = [];
    this.pre = false;
  };
  
  
  
  function generate (
    ast,
    options
  ) {
    var state = new CodegenState(options);
    // fix #11483, Root level <script> tags should not be rendered.
    var code = ast ? (ast.tag === 'script' ? 'null' : genElement(ast, state)) : '_c("div")';
    return {
      render: ("with(this){return " + code + "}"),
      staticRenderFns: state.staticRenderFns
    }
  }
  
  function genElement (el, state) {
    if (el.parent) {
      el.pre = el.pre || el.parent.pre;
    }
  
    if (el.staticRoot && !el.staticProcessed) {
      return genStatic(el, state)
    } else if (el.once && !el.onceProcessed) {
      return genOnce(el, state)
    } else if (el.for && !el.forProcessed) {
      return genFor(el, state)
    } else if (el.if && !el.ifProcessed) {
      return genIf(el, state)
    } else if (el.tag === 'template' && !el.slotTarget && !state.pre) {
      return genChildren(el, state) || 'void 0'
    } else if (el.tag === 'slot') {
      return genSlot(el, state)
    } else {
      // component or element
      var code;
      if (el.component) {
        code = genComponent(el.component, el, state);
      } else {
        var data;
        if (!el.plain || (el.pre && state.maybeComponent(el))) {
          data = genData$2(el, state);
        }
  
        var children = el.inlineTemplate ? null : genChildren(el, state, true);
        code = "_c('" + (el.tag) + "'" + (data ? ("," + data) : '') + (children ? ("," + children) : '') + ")";
      }
      // module transforms
      for (var i = 0; i < state.transforms.length; i++) {
        code = state.transforms[i](el, code);
      }
      return code
    }
  }
  
  // hoist static sub-trees out
  function genStatic (el, state) {
    el.staticProcessed = true;
    // Some elements (templates) need to behave differently inside of a v-pre
    // node.  All pre nodes are static roots, so we can use this as a location to
    // wrap a state change and reset it upon exiting the pre node.
    var originalPreState = state.pre;
    if (el.pre) {
      state.pre = el.pre;
    }
    state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
    state.pre = originalPreState;
    return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
  }
  
  // v-once
  function genOnce (el, state) {
    el.onceProcessed = true;
    if (el.if && !el.ifProcessed) {
      return genIf(el, state)
    } else if (el.staticInFor) {
      var key = '';
      var parent = el.parent;
      while (parent) {
        if (parent.for) {
          key = parent.key;
          break
        }
        parent = parent.parent;
      }
      if (!key) {
         true && state.warn(
          "v-once can only be used inside v-for that is keyed. ",
          el.rawAttrsMap['v-once']
        );
        return genElement(el, state)
      }
      return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + "," + key + ")")
    } else {
      return genStatic(el, state)
    }
  }
  
  function genIf (
    el,
    state,
    altGen,
    altEmpty
  ) {
    el.ifProcessed = true; // avoid recursion
    return genIfConditions(el.ifConditions.slice(), state, altGen, altEmpty)
  }
  
  function genIfConditions (
    conditions,
    state,
    altGen,
    altEmpty
  ) {
    if (!conditions.length) {
      return altEmpty || '_e()'
    }
  
    var condition = conditions.shift();
    if (condition.exp) {
      return ("(" + (condition.exp) + ")?" + (genTernaryExp(condition.block)) + ":" + (genIfConditions(conditions, state, altGen, altEmpty)))
    } else {
      return ("" + (genTernaryExp(condition.block)))
    }
  
    // v-if with v-once should generate code like (a)?_m(0):_m(1)
    function genTernaryExp (el) {
      return altGen
        ? altGen(el, state)
        : el.once
          ? genOnce(el, state)
          : genElement(el, state)
    }
  }
  
  function genFor (
    el,
    state,
    altGen,
    altHelper
  ) {
    var exp = el.for;
    var alias = el.alias;
    var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
    var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
  
    if ( true &&
      state.maybeComponent(el) &&
      el.tag !== 'slot' &&
      el.tag !== 'template' &&
      !el.key
    ) {
      state.warn(
        "<" + (el.tag) + " v-for=\"" + alias + " in " + exp + "\">: component lists rendered with " +
        "v-for should have explicit keys. " +
        "See https://vuejs.org/guide/list.html#key for more info.",
        el.rawAttrsMap['v-for'],
        true /* tip */
      );
    }
  
    el.forProcessed = true; // avoid recursion
    return (altHelper || '_l') + "((" + exp + ")," +
      "function(" + alias + iterator1 + iterator2 + "){" +
        "return " + ((altGen || genElement)(el, state)) +
      '})'
  }
  
  function genData$2 (el, state) {
    var data = '{';
  
    // directives first.
    // directives may mutate the el's other properties before they are generated.
    var dirs = genDirectives(el, state);
    if (dirs) { data += dirs + ','; }
  
    // key
    if (el.key) {
      data += "key:" + (el.key) + ",";
    }
    // ref
    if (el.ref) {
      data += "ref:" + (el.ref) + ",";
    }
    if (el.refInFor) {
      data += "refInFor:true,";
    }
    // pre
    if (el.pre) {
      data += "pre:true,";
    }
    // record original tag name for components using "is" attribute
    if (el.component) {
      data += "tag:\"" + (el.tag) + "\",";
    }
    // module data generation functions
    for (var i = 0; i < state.dataGenFns.length; i++) {
      data += state.dataGenFns[i](el);
    }
    // attributes
    if (el.attrs) {
      data += "attrs:" + (genProps(el.attrs)) + ",";
    }
    // DOM props
    if (el.props) {
      data += "domProps:" + (genProps(el.props)) + ",";
    }
    // event handlers
    if (el.events) {
      data += (genHandlers(el.events, false)) + ",";
    }
    if (el.nativeEvents) {
      data += (genHandlers(el.nativeEvents, true)) + ",";
    }
    // slot target
    // only for non-scoped slots
    if (el.slotTarget && !el.slotScope) {
      data += "slot:" + (el.slotTarget) + ",";
    }
    // scoped slots
    if (el.scopedSlots) {
      data += (genScopedSlots(el, el.scopedSlots, state)) + ",";
    }
    // component v-model
    if (el.model) {
      data += "model:{value:" + (el.model.value) + ",callback:" + (el.model.callback) + ",expression:" + (el.model.expression) + "},";
    }
    // inline-template
    if (el.inlineTemplate) {
      var inlineTemplate = genInlineTemplate(el, state);
      if (inlineTemplate) {
        data += inlineTemplate + ",";
      }
    }
    data = data.replace(/,$/, '') + '}';
    // v-bind dynamic argument wrap
    // v-bind with dynamic arguments must be applied using the same v-bind object
    // merge helper so that class/style/mustUseProp attrs are handled correctly.
    if (el.dynamicAttrs) {
      data = "_b(" + data + ",\"" + (el.tag) + "\"," + (genProps(el.dynamicAttrs)) + ")";
    }
    // v-bind data wrap
    if (el.wrapData) {
      data = el.wrapData(data);
    }
    // v-on data wrap
    if (el.wrapListeners) {
      data = el.wrapListeners(data);
    }
    return data
  }
  
  function genDirectives (el, state) {
    var dirs = el.directives;
    if (!dirs) { return }
    var res = 'directives:[';
    var hasRuntime = false;
    var i, l, dir, needRuntime;
    for (i = 0, l = dirs.length; i < l; i++) {
      dir = dirs[i];
      needRuntime = true;
      var gen = state.directives[dir.name];
      if (gen) {
        // compile-time directive that manipulates AST.
        // returns true if it also needs a runtime counterpart.
        needRuntime = !!gen(el, dir, state.warn);
      }
      if (needRuntime) {
        hasRuntime = true;
        res += "{name:\"" + (dir.name) + "\",rawName:\"" + (dir.rawName) + "\"" + (dir.value ? (",value:(" + (dir.value) + "),expression:" + (JSON.stringify(dir.value))) : '') + (dir.arg ? (",arg:" + (dir.isDynamicArg ? dir.arg : ("\"" + (dir.arg) + "\""))) : '') + (dir.modifiers ? (",modifiers:" + (JSON.stringify(dir.modifiers))) : '') + "},";
      }
    }
    if (hasRuntime) {
      return res.slice(0, -1) + ']'
    }
  }
  
  function genInlineTemplate (el, state) {
    var ast = el.children[0];
    if ( true && (
      el.children.length !== 1 || ast.type !== 1
    )) {
      state.warn(
        'Inline-template components must have exactly one child element.',
        { start: el.start }
      );
    }
    if (ast && ast.type === 1) {
      var inlineRenderFns = generate(ast, state.options);
      return ("inlineTemplate:{render:function(){" + (inlineRenderFns.render) + "},staticRenderFns:[" + (inlineRenderFns.staticRenderFns.map(function (code) { return ("function(){" + code + "}"); }).join(',')) + "]}")
    }
  }
  
  function genScopedSlots (
    el,
    slots,
    state
  ) {
    // by default scoped slots are considered "stable", this allows child
    // components with only scoped slots to skip forced updates from parent.
    // but in some cases we have to bail-out of this optimization
    // for example if the slot contains dynamic names, has v-if or v-for on them...
    var needsForceUpdate = el.for || Object.keys(slots).some(function (key) {
      var slot = slots[key];
      return (
        slot.slotTargetDynamic ||
        slot.if ||
        slot.for ||
        containsSlotChild(slot) // is passing down slot from parent which may be dynamic
      )
    });
  
    // #9534: if a component with scoped slots is inside a conditional branch,
    // it's possible for the same component to be reused but with different
    // compiled slot content. To avoid that, we generate a unique key based on
    // the generated code of all the slot contents.
    var needsKey = !!el.if;
  
    // OR when it is inside another scoped slot or v-for (the reactivity may be
    // disconnected due to the intermediate scope variable)
    // #9438, #9506
    // TODO: this can be further optimized by properly analyzing in-scope bindings
    // and skip force updating ones that do not actually use scope variables.
    if (!needsForceUpdate) {
      var parent = el.parent;
      while (parent) {
        if (
          (parent.slotScope && parent.slotScope !== emptySlotScopeToken) ||
          parent.for
        ) {
          needsForceUpdate = true;
          break
        }
        if (parent.if) {
          needsKey = true;
        }
        parent = parent.parent;
      }
    }
  
    var generatedSlots = Object.keys(slots)
      .map(function (key) { return genScopedSlot(slots[key], state); })
      .join(',');
  
    return ("scopedSlots:_u([" + generatedSlots + "]" + (needsForceUpdate ? ",null,true" : "") + (!needsForceUpdate && needsKey ? (",null,false," + (hash(generatedSlots))) : "") + ")")
  }
  
  function hash(str) {
    var hash = 5381;
    var i = str.length;
    while(i) {
      hash = (hash * 33) ^ str.charCodeAt(--i);
    }
    return hash >>> 0
  }
  
  function containsSlotChild (el) {
    if (el.type === 1) {
      if (el.tag === 'slot') {
        return true
      }
      return el.children.some(containsSlotChild)
    }
    return false
  }
  
  function genScopedSlot (
    el,
    state
  ) {
    var isLegacySyntax = el.attrsMap['slot-scope'];
    if (el.if && !el.ifProcessed && !isLegacySyntax) {
      return genIf(el, state, genScopedSlot, "null")
    }
    if (el.for && !el.forProcessed) {
      return genFor(el, state, genScopedSlot)
    }
    var slotScope = el.slotScope === emptySlotScopeToken
      ? ""
      : String(el.slotScope);
    var fn = "function(" + slotScope + "){" +
      "return " + (el.tag === 'template'
        ? el.if && isLegacySyntax
          ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
          : genChildren(el, state) || 'undefined'
        : genElement(el, state)) + "}";
    // reverse proxy v-slot without scope on this.$slots
    var reverseProxy = slotScope ? "" : ",proxy:true";
    return ("{key:" + (el.slotTarget || "\"default\"") + ",fn:" + fn + reverseProxy + "}")
  }
  
  function genChildren (
    el,
    state,
    checkSkip,
    altGenElement,
    altGenNode
  ) {
    var children = el.children;
    if (children.length) {
      var el$1 = children[0];
      // optimize single v-for
      if (children.length === 1 &&
        el$1.for &&
        el$1.tag !== 'template' &&
        el$1.tag !== 'slot'
      ) {
        var normalizationType = checkSkip
          ? state.maybeComponent(el$1) ? ",1" : ",0"
          : "";
        return ("" + ((altGenElement || genElement)(el$1, state)) + normalizationType)
      }
      var normalizationType$1 = checkSkip
        ? getNormalizationType(children, state.maybeComponent)
        : 0;
      var gen = altGenNode || genNode;
      return ("[" + (children.map(function (c) { return gen(c, state); }).join(',')) + "]" + (normalizationType$1 ? ("," + normalizationType$1) : ''))
    }
  }
  
  // determine the normalization needed for the children array.
  // 0: no normalization needed
  // 1: simple normalization needed (possible 1-level deep nested array)
  // 2: full normalization needed
  function getNormalizationType (
    children,
    maybeComponent
  ) {
    var res = 0;
    for (var i = 0; i < children.length; i++) {
      var el = children[i];
      if (el.type !== 1) {
        continue
      }
      if (needsNormalization(el) ||
          (el.ifConditions && el.ifConditions.some(function (c) { return needsNormalization(c.block); }))) {
        res = 2;
        break
      }
      if (maybeComponent(el) ||
          (el.ifConditions && el.ifConditions.some(function (c) { return maybeComponent(c.block); }))) {
        res = 1;
      }
    }
    return res
  }
  
  function needsNormalization (el) {
    return el.for !== undefined || el.tag === 'template' || el.tag === 'slot'
  }
  
  function genNode (node, state) {
    if (node.type === 1) {
      return genElement(node, state)
    } else if (node.type === 3 && node.isComment) {
      return genComment(node)
    } else {
      return genText(node)
    }
  }
  
  function genText (text) {
    return ("_v(" + (text.type === 2
      ? text.expression // no need for () because already wrapped in _s()
      : transformSpecialNewlines(JSON.stringify(text.text))) + ")")
  }
  
  function genComment (comment) {
    return ("_e(" + (JSON.stringify(comment.text)) + ")")
  }
  
  function genSlot (el, state) {
    var slotName = el.slotName || '"default"';
    var children = genChildren(el, state);
    var res = "_t(" + slotName + (children ? (",function(){return " + children + "}") : '');
    var attrs = el.attrs || el.dynamicAttrs
      ? genProps((el.attrs || []).concat(el.dynamicAttrs || []).map(function (attr) { return ({
          // slot props are camelized
          name: camelize(attr.name),
          value: attr.value,
          dynamic: attr.dynamic
        }); }))
      : null;
    var bind$$1 = el.attrsMap['v-bind'];
    if ((attrs || bind$$1) && !children) {
      res += ",null";
    }
    if (attrs) {
      res += "," + attrs;
    }
    if (bind$$1) {
      res += (attrs ? '' : ',null') + "," + bind$$1;
    }
    return res + ')'
  }
  
  // componentName is el.component, take it as argument to shun flow's pessimistic refinement
  function genComponent (
    componentName,
    el,
    state
  ) {
    var children = el.inlineTemplate ? null : genChildren(el, state, true);
    return ("_c(" + componentName + "," + (genData$2(el, state)) + (children ? ("," + children) : '') + ")")
  }
  
  function genProps (props) {
    var staticProps = "";
    var dynamicProps = "";
    for (var i = 0; i < props.length; i++) {
      var prop = props[i];
      var value = transformSpecialNewlines(prop.value);
      if (prop.dynamic) {
        dynamicProps += (prop.name) + "," + value + ",";
      } else {
        staticProps += "\"" + (prop.name) + "\":" + value + ",";
      }
    }
    staticProps = "{" + (staticProps.slice(0, -1)) + "}";
    if (dynamicProps) {
      return ("_d(" + staticProps + ",[" + (dynamicProps.slice(0, -1)) + "])")
    } else {
      return staticProps
    }
  }
  
  // #3895, #4268
  function transformSpecialNewlines (text) {
    return text
      .replace(/\u2028/g, '\\u2028')
      .replace(/\u2029/g, '\\u2029')
  }
  
  /*  */
  
  
  
  // these keywords should not appear inside expressions, but operators like
  // typeof, instanceof and in are allowed
  var prohibitedKeywordRE = new RegExp('\\b' + (
    'do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,' +
    'super,throw,while,yield,delete,export,import,return,switch,default,' +
    'extends,finally,continue,debugger,function,arguments'
  ).split(',').join('\\b|\\b') + '\\b');
  
  // these unary operators should not be used as property/method names
  var unaryOperatorsRE = new RegExp('\\b' + (
    'delete,typeof,void'
  ).split(',').join('\\s*\\([^\\)]*\\)|\\b') + '\\s*\\([^\\)]*\\)');
  
  // strip strings in expressions
  var stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;
  
  // detect problematic expressions in a template
  function detectErrors (ast, warn) {
    if (ast) {
      checkNode(ast, warn);
    }
  }
  
  function checkNode (node, warn) {
    if (node.type === 1) {
      for (var name in node.attrsMap) {
        if (dirRE.test(name)) {
          var value = node.attrsMap[name];
          if (value) {
            var range = node.rawAttrsMap[name];
            if (name === 'v-for') {
              checkFor(node, ("v-for=\"" + value + "\""), warn, range);
            } else if (name === 'v-slot' || name[0] === '#') {
              checkFunctionParameterExpression(value, (name + "=\"" + value + "\""), warn, range);
            } else if (onRE.test(name)) {
              checkEvent(value, (name + "=\"" + value + "\""), warn, range);
            } else {
              checkExpression(value, (name + "=\"" + value + "\""), warn, range);
            }
          }
        }
      }
      if (node.children) {
        for (var i = 0; i < node.children.length; i++) {
          checkNode(node.children[i], warn);
        }
      }
    } else if (node.type === 2) {
      checkExpression(node.expression, node.text, warn, node);
    }
  }
  
  function checkEvent (exp, text, warn, range) {
    var stripped = exp.replace(stripStringRE, '');
    var keywordMatch = stripped.match(unaryOperatorsRE);
    if (keywordMatch && stripped.charAt(keywordMatch.index - 1) !== '$') {
      warn(
        "avoid using JavaScript unary operator as property name: " +
        "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim()),
        range
      );
    }
    checkExpression(exp, text, warn, range);
  }
  
  function checkFor (node, text, warn, range) {
    checkExpression(node.for || '', text, warn, range);
    checkIdentifier(node.alias, 'v-for alias', text, warn, range);
    checkIdentifier(node.iterator1, 'v-for iterator', text, warn, range);
    checkIdentifier(node.iterator2, 'v-for iterator', text, warn, range);
  }
  
  function checkIdentifier (
    ident,
    type,
    text,
    warn,
    range
  ) {
    if (typeof ident === 'string') {
      try {
        new Function(("var " + ident + "=_"));
      } catch (e) {
        warn(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())), range);
      }
    }
  }
  
  function checkExpression (exp, text, warn, range) {
    try {
      new Function(("return " + exp));
    } catch (e) {
      var keywordMatch = exp.replace(stripStringRE, '').match(prohibitedKeywordRE);
      if (keywordMatch) {
        warn(
          "avoid using JavaScript keyword as property name: " +
          "\"" + (keywordMatch[0]) + "\"\n  Raw expression: " + (text.trim()),
          range
        );
      } else {
        warn(
          "invalid expression: " + (e.message) + " in\n\n" +
          "    " + exp + "\n\n" +
          "  Raw expression: " + (text.trim()) + "\n",
          range
        );
      }
    }
  }
  
  function checkFunctionParameterExpression (exp, text, warn, range) {
    try {
      new Function(exp, '');
    } catch (e) {
      warn(
        "invalid function parameter expression: " + (e.message) + " in\n\n" +
        "    " + exp + "\n\n" +
        "  Raw expression: " + (text.trim()) + "\n",
        range
      );
    }
  }
  
  /*  */
  
  var range = 2;
  
  function generateCodeFrame (
    source,
    start,
    end
  ) {
    if ( start === void 0 ) start = 0;
    if ( end === void 0 ) end = source.length;
  
    var lines = source.split(/\r?\n/);
    var count = 0;
    var res = [];
    for (var i = 0; i < lines.length; i++) {
      count += lines[i].length + 1;
      if (count >= start) {
        for (var j = i - range; j <= i + range || end > count; j++) {
          if (j < 0 || j >= lines.length) { continue }
          res.push(("" + (j + 1) + (repeat$1(" ", 3 - String(j + 1).length)) + "|  " + (lines[j])));
          var lineLength = lines[j].length;
          if (j === i) {
            // push underline
            var pad = start - (count - lineLength) + 1;
            var length = end > count ? lineLength - pad : end - start;
            res.push("   |  " + repeat$1(" ", pad) + repeat$1("^", length));
          } else if (j > i) {
            if (end > count) {
              var length$1 = Math.min(end - count, lineLength);
              res.push("   |  " + repeat$1("^", length$1));
            }
            count += lineLength + 1;
          }
        }
        break
      }
    }
    return res.join('\n')
  }
  
  function repeat$1 (str, n) {
    var result = '';
    if (n > 0) {
      while (true) { // eslint-disable-line
        if (n & 1) { result += str; }
        n >>>= 1;
        if (n <= 0) { break }
        str += str;
      }
    }
    return result
  }
  
  /*  */
  
  
  
  function createFunction (code, errors) {
    try {
      return new Function(code)
    } catch (err) {
      errors.push({ err: err, code: code });
      return noop
    }
  }
  
  function createCompileToFunctionFn (compile) {
    var cache = Object.create(null);
  
    return function compileToFunctions (
      template,
      options,
      vm
    ) {
      options = extend({}, options);
      var warn$$1 = options.warn || warn;
      delete options.warn;
  
      /* istanbul ignore if */
      if (true) {
        // detect possible CSP restriction
        try {
          new Function('return 1');
        } catch (e) {
          if (e.toString().match(/unsafe-eval|CSP/)) {
            warn$$1(
              'It seems you are using the standalone build of Vue.js in an ' +
              'environment with Content Security Policy that prohibits unsafe-eval. ' +
              'The template compiler cannot work in this environment. Consider ' +
              'relaxing the policy to allow unsafe-eval or pre-compiling your ' +
              'templates into render functions.'
            );
          }
        }
      }
  
      // check cache
      var key = options.delimiters
        ? String(options.delimiters) + template
        : template;
      if (cache[key]) {
        return cache[key]
      }
  
      // compile
      var compiled = compile(template, options);
  
      // check compilation errors/tips
      if (true) {
        if (compiled.errors && compiled.errors.length) {
          if (options.outputSourceRange) {
            compiled.errors.forEach(function (e) {
              warn$$1(
                "Error compiling template:\n\n" + (e.msg) + "\n\n" +
                generateCodeFrame(template, e.start, e.end),
                vm
              );
            });
          } else {
            warn$$1(
              "Error compiling template:\n\n" + template + "\n\n" +
              compiled.errors.map(function (e) { return ("- " + e); }).join('\n') + '\n',
              vm
            );
          }
        }
        if (compiled.tips && compiled.tips.length) {
          if (options.outputSourceRange) {
            compiled.tips.forEach(function (e) { return tip(e.msg, vm); });
          } else {
            compiled.tips.forEach(function (msg) { return tip(msg, vm); });
          }
        }
      }
  
      // turn code into functions
      var res = {};
      var fnGenErrors = [];
      res.render = createFunction(compiled.render, fnGenErrors);
      res.staticRenderFns = compiled.staticRenderFns.map(function (code) {
        return createFunction(code, fnGenErrors)
      });
  
      // check function generation errors.
      // this should only happen if there is a bug in the compiler itself.
      // mostly for codegen development use
      /* istanbul ignore if */
      if (true) {
        if ((!compiled.errors || !compiled.errors.length) && fnGenErrors.length) {
          warn$$1(
            "Failed to generate render function:\n\n" +
            fnGenErrors.map(function (ref) {
              var err = ref.err;
              var code = ref.code;
  
              return ((err.toString()) + " in\n\n" + code + "\n");
          }).join('\n'),
            vm
          );
        }
      }
  
      return (cache[key] = res)
    }
  }
  
  /*  */
  
  function createCompilerCreator (baseCompile) {
    return function createCompiler (baseOptions) {
      function compile (
        template,
        options
      ) {
        var finalOptions = Object.create(baseOptions);
        var errors = [];
        var tips = [];
  
        var warn = function (msg, range, tip) {
          (tip ? tips : errors).push(msg);
        };
  
        if (options) {
          if ( true && options.outputSourceRange) {
            // $flow-disable-line
            var leadingSpaceLength = template.match(/^\s*/)[0].length;
  
            warn = function (msg, range, tip) {
              var data = { msg: msg };
              if (range) {
                if (range.start != null) {
                  data.start = range.start + leadingSpaceLength;
                }
                if (range.end != null) {
                  data.end = range.end + leadingSpaceLength;
                }
              }
              (tip ? tips : errors).push(data);
            };
          }
          // merge custom modules
          if (options.modules) {
            finalOptions.modules =
              (baseOptions.modules || []).concat(options.modules);
          }
          // merge custom directives
          if (options.directives) {
            finalOptions.directives = extend(
              Object.create(baseOptions.directives || null),
              options.directives
            );
          }
          // copy other options
          for (var key in options) {
            if (key !== 'modules' && key !== 'directives') {
              finalOptions[key] = options[key];
            }
          }
        }
  
        finalOptions.warn = warn;
  
        var compiled = baseCompile(template.trim(), finalOptions);
        if (true) {
          detectErrors(compiled.ast, warn);
        }
        compiled.errors = errors;
        compiled.tips = tips;
        return compiled
      }
  
      return {
        compile: compile,
        compileToFunctions: createCompileToFunctionFn(compile)
      }
    }
  }
  
  /*  */
  
  // `createCompilerCreator` allows creating compilers that use alternative
  // parser/optimizer/codegen, e.g the SSR optimizing compiler.
  // Here we just export a default compiler using the default parts.
  var createCompiler = createCompilerCreator(function baseCompile (
    template,
    options
  ) {
    var ast = parse(template.trim(), options);
    if (options.optimize !== false) {
      optimize(ast, options);
    }
    var code = generate(ast, options);
    return {
      ast: ast,
      render: code.render,
      staticRenderFns: code.staticRenderFns
    }
  });
  
  /*  */
  
  var ref$1 = createCompiler(baseOptions);
  var compile = ref$1.compile;
  var compileToFunctions = ref$1.compileToFunctions;
  
  /*  */
  
  // check whether current browser encodes a char inside attribute values
  var div;
  function getShouldDecode (href) {
    div = div || document.createElement('div');
    div.innerHTML = href ? "<a href=\"\n\"/>" : "<div a=\"\n\"/>";
    return div.innerHTML.indexOf('&#10;') > 0
  }
  
  // #3663: IE encodes newlines inside attribute values while other browsers don't
  var shouldDecodeNewlines = inBrowser ? getShouldDecode(false) : false;
  // #6828: chrome encodes content in a[href]
  var shouldDecodeNewlinesForHref = inBrowser ? getShouldDecode(true) : false;
  
  /*  */
  
  var idToTemplate = cached(function (id) {
    var el = query(id);
    return el && el.innerHTML
  });
  
  var mount = Vue.prototype.$mount;
  Vue.prototype.$mount = function (
    el,
    hydrating
  ) {
    el = el && query(el);
  
    /* istanbul ignore if */
    if (el === document.body || el === document.documentElement) {
       true && warn(
        "Do not mount Vue to <html> or <body> - mount to normal elements instead."
      );
      return this
    }
  
    var options = this.$options;
    // resolve template/el and convert to render function
    if (!options.render) {
      var template = options.template;
      if (template) {
        if (typeof template === 'string') {
          if (template.charAt(0) === '#') {
            template = idToTemplate(template);
            /* istanbul ignore if */
            if ( true && !template) {
              warn(
                ("Template element not found or is empty: " + (options.template)),
                this
              );
            }
          }
        } else if (template.nodeType) {
          template = template.innerHTML;
        } else {
          if (true) {
            warn('invalid template option:' + template, this);
          }
          return this
        }
      } else if (el) {
        template = getOuterHTML(el);
      }
      if (template) {
        /* istanbul ignore if */
        if ( true && config.performance && mark) {
          mark('compile');
        }
  
        var ref = compileToFunctions(template, {
          outputSourceRange: "development" !== 'production',
          shouldDecodeNewlines: shouldDecodeNewlines,
          shouldDecodeNewlinesForHref: shouldDecodeNewlinesForHref,
          delimiters: options.delimiters,
          comments: options.comments
        }, this);
        var render = ref.render;
        var staticRenderFns = ref.staticRenderFns;
        options.render = render;
        options.staticRenderFns = staticRenderFns;
  
        /* istanbul ignore if */
        if ( true && config.performance && mark) {
          mark('compile end');
          measure(("vue " + (this._name) + " compile"), 'compile', 'compile end');
        }
      }
    }
    return mount.call(this, el, hydrating)
  };
  
  /**
   * Get outerHTML of elements, taking care
   * of SVG elements in IE as well.
   */
  function getOuterHTML (el) {
    if (el.outerHTML) {
      return el.outerHTML
    } else {
      var container = document.createElement('div');
      container.appendChild(el.cloneNode(true));
      return container.innerHTML
    }
  }
  
  Vue.compile = compileToFunctions;
  
  /* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = (Vue);
  
  
  /***/ }),
  
  /***/ "./node_modules/vuex/dist/vuex.esm.js":
  /*!********************************************!*\
    !*** ./node_modules/vuex/dist/vuex.esm.js ***!
    \********************************************/
  /***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {
  
  "use strict";
  __webpack_require__.r(__webpack_exports__);
  /* harmony export */ __webpack_require__.d(__webpack_exports__, {
  /* harmony export */   "Store": () => (/* binding */ Store),
  /* harmony export */   "createLogger": () => (/* binding */ createLogger),
  /* harmony export */   "createNamespacedHelpers": () => (/* binding */ createNamespacedHelpers),
  /* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__),
  /* harmony export */   "install": () => (/* binding */ install),
  /* harmony export */   "mapActions": () => (/* binding */ mapActions),
  /* harmony export */   "mapGetters": () => (/* binding */ mapGetters),
  /* harmony export */   "mapMutations": () => (/* binding */ mapMutations),
  /* harmony export */   "mapState": () => (/* binding */ mapState)
  /* harmony export */ });
  /*!
   * vuex v3.6.2
   * (c) 2021 Evan You
   * @license MIT
   */
  function applyMixin (Vue) {
    var version = Number(Vue.version.split('.')[0]);
  
    if (version >= 2) {
      Vue.mixin({ beforeCreate: vuexInit });
    } else {
      // override init and inject vuex init procedure
      // for 1.x backwards compatibility.
      var _init = Vue.prototype._init;
      Vue.prototype._init = function (options) {
        if ( options === void 0 ) options = {};
  
        options.init = options.init
          ? [vuexInit].concat(options.init)
          : vuexInit;
        _init.call(this, options);
      };
    }
  
    /**
     * Vuex init hook, injected into each instances init hooks list.
     */
  
    function vuexInit () {
      var options = this.$options;
      // store injection
      if (options.store) {
        this.$store = typeof options.store === 'function'
          ? options.store()
          : options.store;
      } else if (options.parent && options.parent.$store) {
        this.$store = options.parent.$store;
      }
    }
  }
  
  var target = typeof window !== 'undefined'
    ? window
    : typeof __webpack_require__.g !== 'undefined'
      ? __webpack_require__.g
      : {};
  var devtoolHook = target.__VUE_DEVTOOLS_GLOBAL_HOOK__;
  
  function devtoolPlugin (store) {
    if (!devtoolHook) { return }
  
    store._devtoolHook = devtoolHook;
  
    devtoolHook.emit('vuex:init', store);
  
    devtoolHook.on('vuex:travel-to-state', function (targetState) {
      store.replaceState(targetState);
    });
  
    store.subscribe(function (mutation, state) {
      devtoolHook.emit('vuex:mutation', mutation, state);
    }, { prepend: true });
  
    store.subscribeAction(function (action, state) {
      devtoolHook.emit('vuex:action', action, state);
    }, { prepend: true });
  }
  
  /**
   * Get the first item that pass the test
   * by second argument function
   *
   * @param {Array} list
   * @param {Function} f
   * @return {*}
   */
  function find (list, f) {
    return list.filter(f)[0]
  }
  
  /**
   * Deep copy the given object considering circular structure.
   * This function caches all nested objects and its copies.
   * If it detects circular structure, use cached copy to avoid infinite loop.
   *
   * @param {*} obj
   * @param {Array<Object>} cache
   * @return {*}
   */
  function deepCopy (obj, cache) {
    if ( cache === void 0 ) cache = [];
  
    // just return if obj is immutable value
    if (obj === null || typeof obj !== 'object') {
      return obj
    }
  
    // if obj is hit, it is in circular structure
    var hit = find(cache, function (c) { return c.original === obj; });
    if (hit) {
      return hit.copy
    }
  
    var copy = Array.isArray(obj) ? [] : {};
    // put the copy into cache at first
    // because we want to refer it in recursive deepCopy
    cache.push({
      original: obj,
      copy: copy
    });
  
    Object.keys(obj).forEach(function (key) {
      copy[key] = deepCopy(obj[key], cache);
    });
  
    return copy
  }
  
  /**
   * forEach for object
   */
  function forEachValue (obj, fn) {
    Object.keys(obj).forEach(function (key) { return fn(obj[key], key); });
  }
  
  function isObject (obj) {
    return obj !== null && typeof obj === 'object'
  }
  
  function isPromise (val) {
    return val && typeof val.then === 'function'
  }
  
  function assert (condition, msg) {
    if (!condition) { throw new Error(("[vuex] " + msg)) }
  }
  
  function partial (fn, arg) {
    return function () {
      return fn(arg)
    }
  }
  
  // Base data struct for store's module, package with some attribute and method
  var Module = function Module (rawModule, runtime) {
    this.runtime = runtime;
    // Store some children item
    this._children = Object.create(null);
    // Store the origin module object which passed by programmer
    this._rawModule = rawModule;
    var rawState = rawModule.state;
  
    // Store the origin module's state
    this.state = (typeof rawState === 'function' ? rawState() : rawState) || {};
  };
  
  var prototypeAccessors = { namespaced: { configurable: true } };
  
  prototypeAccessors.namespaced.get = function () {
    return !!this._rawModule.namespaced
  };
  
  Module.prototype.addChild = function addChild (key, module) {
    this._children[key] = module;
  };
  
  Module.prototype.removeChild = function removeChild (key) {
    delete this._children[key];
  };
  
  Module.prototype.getChild = function getChild (key) {
    return this._children[key]
  };
  
  Module.prototype.hasChild = function hasChild (key) {
    return key in this._children
  };
  
  Module.prototype.update = function update (rawModule) {
    this._rawModule.namespaced = rawModule.namespaced;
    if (rawModule.actions) {
      this._rawModule.actions = rawModule.actions;
    }
    if (rawModule.mutations) {
      this._rawModule.mutations = rawModule.mutations;
    }
    if (rawModule.getters) {
      this._rawModule.getters = rawModule.getters;
    }
  };
  
  Module.prototype.forEachChild = function forEachChild (fn) {
    forEachValue(this._children, fn);
  };
  
  Module.prototype.forEachGetter = function forEachGetter (fn) {
    if (this._rawModule.getters) {
      forEachValue(this._rawModule.getters, fn);
    }
  };
  
  Module.prototype.forEachAction = function forEachAction (fn) {
    if (this._rawModule.actions) {
      forEachValue(this._rawModule.actions, fn);
    }
  };
  
  Module.prototype.forEachMutation = function forEachMutation (fn) {
    if (this._rawModule.mutations) {
      forEachValue(this._rawModule.mutations, fn);
    }
  };
  
  Object.defineProperties( Module.prototype, prototypeAccessors );
  
  var ModuleCollection = function ModuleCollection (rawRootModule) {
    // register root module (Vuex.Store options)
    this.register([], rawRootModule, false);
  };
  
  ModuleCollection.prototype.get = function get (path) {
    return path.reduce(function (module, key) {
      return module.getChild(key)
    }, this.root)
  };
  
  ModuleCollection.prototype.getNamespace = function getNamespace (path) {
    var module = this.root;
    return path.reduce(function (namespace, key) {
      module = module.getChild(key);
      return namespace + (module.namespaced ? key + '/' : '')
    }, '')
  };
  
  ModuleCollection.prototype.update = function update$1 (rawRootModule) {
    update([], this.root, rawRootModule);
  };
  
  ModuleCollection.prototype.register = function register (path, rawModule, runtime) {
      var this$1 = this;
      if ( runtime === void 0 ) runtime = true;
  
    if ((true)) {
      assertRawModule(path, rawModule);
    }
  
    var newModule = new Module(rawModule, runtime);
    if (path.length === 0) {
      this.root = newModule;
    } else {
      var parent = this.get(path.slice(0, -1));
      parent.addChild(path[path.length - 1], newModule);
    }
  
    // register nested modules
    if (rawModule.modules) {
      forEachValue(rawModule.modules, function (rawChildModule, key) {
        this$1.register(path.concat(key), rawChildModule, runtime);
      });
    }
  };
  
  ModuleCollection.prototype.unregister = function unregister (path) {
    var parent = this.get(path.slice(0, -1));
    var key = path[path.length - 1];
    var child = parent.getChild(key);
  
    if (!child) {
      if ((true)) {
        console.warn(
          "[vuex] trying to unregister module '" + key + "', which is " +
          "not registered"
        );
      }
      return
    }
  
    if (!child.runtime) {
      return
    }
  
    parent.removeChild(key);
  };
  
  ModuleCollection.prototype.isRegistered = function isRegistered (path) {
    var parent = this.get(path.slice(0, -1));
    var key = path[path.length - 1];
  
    if (parent) {
      return parent.hasChild(key)
    }
  
    return false
  };
  
  function update (path, targetModule, newModule) {
    if ((true)) {
      assertRawModule(path, newModule);
    }
  
    // update target module
    targetModule.update(newModule);
  
    // update nested modules
    if (newModule.modules) {
      for (var key in newModule.modules) {
        if (!targetModule.getChild(key)) {
          if ((true)) {
            console.warn(
              "[vuex] trying to add a new module '" + key + "' on hot reloading, " +
              'manual reload is needed'
            );
          }
          return
        }
        update(
          path.concat(key),
          targetModule.getChild(key),
          newModule.modules[key]
        );
      }
    }
  }
  
  var functionAssert = {
    assert: function (value) { return typeof value === 'function'; },
    expected: 'function'
  };
  
  var objectAssert = {
    assert: function (value) { return typeof value === 'function' ||
      (typeof value === 'object' && typeof value.handler === 'function'); },
    expected: 'function or object with "handler" function'
  };
  
  var assertTypes = {
    getters: functionAssert,
    mutations: functionAssert,
    actions: objectAssert
  };
  
  function assertRawModule (path, rawModule) {
    Object.keys(assertTypes).forEach(function (key) {
      if (!rawModule[key]) { return }
  
      var assertOptions = assertTypes[key];
  
      forEachValue(rawModule[key], function (value, type) {
        assert(
          assertOptions.assert(value),
          makeAssertionMessage(path, key, type, value, assertOptions.expected)
        );
      });
    });
  }
  
  function makeAssertionMessage (path, key, type, value, expected) {
    var buf = key + " should be " + expected + " but \"" + key + "." + type + "\"";
    if (path.length > 0) {
      buf += " in module \"" + (path.join('.')) + "\"";
    }
    buf += " is " + (JSON.stringify(value)) + ".";
    return buf
  }
  
  var Vue; // bind on install
  
  var Store = function Store (options) {
    var this$1 = this;
    if ( options === void 0 ) options = {};
  
    // Auto install if it is not done yet and `window` has `Vue`.
    // To allow users to avoid auto-installation in some cases,
    // this code should be placed here. See #731
    if (!Vue && typeof window !== 'undefined' && window.Vue) {
      install(window.Vue);
    }
  
    if ((true)) {
      assert(Vue, "must call Vue.use(Vuex) before creating a store instance.");
      assert(typeof Promise !== 'undefined', "vuex requires a Promise polyfill in this browser.");
      assert(this instanceof Store, "store must be called with the new operator.");
    }
  
    var plugins = options.plugins; if ( plugins === void 0 ) plugins = [];
    var strict = options.strict; if ( strict === void 0 ) strict = false;
  
    // store internal state
    this._committing = false;
    this._actions = Object.create(null);
    this._actionSubscribers = [];
    this._mutations = Object.create(null);
    this._wrappedGetters = Object.create(null);
    this._modules = new ModuleCollection(options);
    this._modulesNamespaceMap = Object.create(null);
    this._subscribers = [];
    this._watcherVM = new Vue();
    this._makeLocalGettersCache = Object.create(null);
  
    // bind commit and dispatch to self
    var store = this;
    var ref = this;
    var dispatch = ref.dispatch;
    var commit = ref.commit;
    this.dispatch = function boundDispatch (type, payload) {
      return dispatch.call(store, type, payload)
    };
    this.commit = function boundCommit (type, payload, options) {
      return commit.call(store, type, payload, options)
    };
  
    // strict mode
    this.strict = strict;
  
    var state = this._modules.root.state;
  
    // init root module.
    // this also recursively registers all sub-modules
    // and collects all module getters inside this._wrappedGetters
    installModule(this, state, [], this._modules.root);
  
    // initialize the store vm, which is responsible for the reactivity
    // (also registers _wrappedGetters as computed properties)
    resetStoreVM(this, state);
  
    // apply plugins
    plugins.forEach(function (plugin) { return plugin(this$1); });
  
    var useDevtools = options.devtools !== undefined ? options.devtools : Vue.config.devtools;
    if (useDevtools) {
      devtoolPlugin(this);
    }
  };
  
  var prototypeAccessors$1 = { state: { configurable: true } };
  
  prototypeAccessors$1.state.get = function () {
    return this._vm._data.$$state
  };
  
  prototypeAccessors$1.state.set = function (v) {
    if ((true)) {
      assert(false, "use store.replaceState() to explicit replace store state.");
    }
  };
  
  Store.prototype.commit = function commit (_type, _payload, _options) {
      var this$1 = this;
  
    // check object-style commit
    var ref = unifyObjectStyle(_type, _payload, _options);
      var type = ref.type;
      var payload = ref.payload;
      var options = ref.options;
  
    var mutation = { type: type, payload: payload };
    var entry = this._mutations[type];
    if (!entry) {
      if ((true)) {
        console.error(("[vuex] unknown mutation type: " + type));
      }
      return
    }
    this._withCommit(function () {
      entry.forEach(function commitIterator (handler) {
        handler(payload);
      });
    });
  
    this._subscribers
      .slice() // shallow copy to prevent iterator invalidation if subscriber synchronously calls unsubscribe
      .forEach(function (sub) { return sub(mutation, this$1.state); });
  
    if (
      ( true) &&
      options && options.silent
    ) {
      console.warn(
        "[vuex] mutation type: " + type + ". Silent option has been removed. " +
        'Use the filter functionality in the vue-devtools'
      );
    }
  };
  
  Store.prototype.dispatch = function dispatch (_type, _payload) {
      var this$1 = this;
  
    // check object-style dispatch
    var ref = unifyObjectStyle(_type, _payload);
      var type = ref.type;
      var payload = ref.payload;
  
    var action = { type: type, payload: payload };
    var entry = this._actions[type];
    if (!entry) {
      if ((true)) {
        console.error(("[vuex] unknown action type: " + type));
      }
      return
    }
  
    try {
      this._actionSubscribers
        .slice() // shallow copy to prevent iterator invalidation if subscriber synchronously calls unsubscribe
        .filter(function (sub) { return sub.before; })
        .forEach(function (sub) { return sub.before(action, this$1.state); });
    } catch (e) {
      if ((true)) {
        console.warn("[vuex] error in before action subscribers: ");
        console.error(e);
      }
    }
  
    var result = entry.length > 1
      ? Promise.all(entry.map(function (handler) { return handler(payload); }))
      : entry[0](payload);
  
    return new Promise(function (resolve, reject) {
      result.then(function (res) {
        try {
          this$1._actionSubscribers
            .filter(function (sub) { return sub.after; })
            .forEach(function (sub) { return sub.after(action, this$1.state); });
        } catch (e) {
          if ((true)) {
            console.warn("[vuex] error in after action subscribers: ");
            console.error(e);
          }
        }
        resolve(res);
      }, function (error) {
        try {
          this$1._actionSubscribers
            .filter(function (sub) { return sub.error; })
            .forEach(function (sub) { return sub.error(action, this$1.state, error); });
        } catch (e) {
          if ((true)) {
            console.warn("[vuex] error in error action subscribers: ");
            console.error(e);
          }
        }
        reject(error);
      });
    })
  };
  
  Store.prototype.subscribe = function subscribe (fn, options) {
    return genericSubscribe(fn, this._subscribers, options)
  };
  
  Store.prototype.subscribeAction = function subscribeAction (fn, options) {
    var subs = typeof fn === 'function' ? { before: fn } : fn;
    return genericSubscribe(subs, this._actionSubscribers, options)
  };
  
  Store.prototype.watch = function watch (getter, cb, options) {
      var this$1 = this;
  
    if ((true)) {
      assert(typeof getter === 'function', "store.watch only accepts a function.");
    }
    return this._watcherVM.$watch(function () { return getter(this$1.state, this$1.getters); }, cb, options)
  };
  
  Store.prototype.replaceState = function replaceState (state) {
      var this$1 = this;
  
    this._withCommit(function () {
      this$1._vm._data.$$state = state;
    });
  };
  
  Store.prototype.registerModule = function registerModule (path, rawModule, options) {
      if ( options === void 0 ) options = {};
  
    if (typeof path === 'string') { path = [path]; }
  
    if ((true)) {
      assert(Array.isArray(path), "module path must be a string or an Array.");
      assert(path.length > 0, 'cannot register the root module by using registerModule.');
    }
  
    this._modules.register(path, rawModule);
    installModule(this, this.state, path, this._modules.get(path), options.preserveState);
    // reset store to update getters...
    resetStoreVM(this, this.state);
  };
  
  Store.prototype.unregisterModule = function unregisterModule (path) {
      var this$1 = this;
  
    if (typeof path === 'string') { path = [path]; }
  
    if ((true)) {
      assert(Array.isArray(path), "module path must be a string or an Array.");
    }
  
    this._modules.unregister(path);
    this._withCommit(function () {
      var parentState = getNestedState(this$1.state, path.slice(0, -1));
      Vue.delete(parentState, path[path.length - 1]);
    });
    resetStore(this);
  };
  
  Store.prototype.hasModule = function hasModule (path) {
    if (typeof path === 'string') { path = [path]; }
  
    if ((true)) {
      assert(Array.isArray(path), "module path must be a string or an Array.");
    }
  
    return this._modules.isRegistered(path)
  };
  
  Store.prototype.hotUpdate = function hotUpdate (newOptions) {
    this._modules.update(newOptions);
    resetStore(this, true);
  };
  
  Store.prototype._withCommit = function _withCommit (fn) {
    var committing = this._committing;
    this._committing = true;
    fn();
    this._committing = committing;
  };
  
  Object.defineProperties( Store.prototype, prototypeAccessors$1 );
  
  function genericSubscribe (fn, subs, options) {
    if (subs.indexOf(fn) < 0) {
      options && options.prepend
        ? subs.unshift(fn)
        : subs.push(fn);
    }
    return function () {
      var i = subs.indexOf(fn);
      if (i > -1) {
        subs.splice(i, 1);
      }
    }
  }
  
  function resetStore (store, hot) {
    store._actions = Object.create(null);
    store._mutations = Object.create(null);
    store._wrappedGetters = Object.create(null);
    store._modulesNamespaceMap = Object.create(null);
    var state = store.state;
    // init all modules
    installModule(store, state, [], store._modules.root, true);
    // reset vm
    resetStoreVM(store, state, hot);
  }
  
  function resetStoreVM (store, state, hot) {
    var oldVm = store._vm;
  
    // bind store public getters
    store.getters = {};
    // reset local getters cache
    store._makeLocalGettersCache = Object.create(null);
    var wrappedGetters = store._wrappedGetters;
    var computed = {};
    forEachValue(wrappedGetters, function (fn, key) {
      // use computed to leverage its lazy-caching mechanism
      // direct inline function use will lead to closure preserving oldVm.
      // using partial to return function with only arguments preserved in closure environment.
      computed[key] = partial(fn, store);
      Object.defineProperty(store.getters, key, {
        get: function () { return store._vm[key]; },
        enumerable: true // for local getters
      });
    });
  
    // use a Vue instance to store the state tree
    // suppress warnings just in case the user has added
    // some funky global mixins
    var silent = Vue.config.silent;
    Vue.config.silent = true;
    store._vm = new Vue({
      data: {
        $$state: state
      },
      computed: computed
    });
    Vue.config.silent = silent;
  
    // enable strict mode for new vm
    if (store.strict) {
      enableStrictMode(store);
    }
  
    if (oldVm) {
      if (hot) {
        // dispatch changes in all subscribed watchers
        // to force getter re-evaluation for hot reloading.
        store._withCommit(function () {
          oldVm._data.$$state = null;
        });
      }
      Vue.nextTick(function () { return oldVm.$destroy(); });
    }
  }
  
  function installModule (store, rootState, path, module, hot) {
    var isRoot = !path.length;
    var namespace = store._modules.getNamespace(path);
  
    // register in namespace map
    if (module.namespaced) {
      if (store._modulesNamespaceMap[namespace] && ("development" !== 'production')) {
        console.error(("[vuex] duplicate namespace " + namespace + " for the namespaced module " + (path.join('/'))));
      }
      store._modulesNamespaceMap[namespace] = module;
    }
  
    // set state
    if (!isRoot && !hot) {
      var parentState = getNestedState(rootState, path.slice(0, -1));
      var moduleName = path[path.length - 1];
      store._withCommit(function () {
        if ((true)) {
          if (moduleName in parentState) {
            console.warn(
              ("[vuex] state field \"" + moduleName + "\" was overridden by a module with the same name at \"" + (path.join('.')) + "\"")
            );
          }
        }
        Vue.set(parentState, moduleName, module.state);
      });
    }
  
    var local = module.context = makeLocalContext(store, namespace, path);
  
    module.forEachMutation(function (mutation, key) {
      var namespacedType = namespace + key;
      registerMutation(store, namespacedType, mutation, local);
    });
  
    module.forEachAction(function (action, key) {
      var type = action.root ? key : namespace + key;
      var handler = action.handler || action;
      registerAction(store, type, handler, local);
    });
  
    module.forEachGetter(function (getter, key) {
      var namespacedType = namespace + key;
      registerGetter(store, namespacedType, getter, local);
    });
  
    module.forEachChild(function (child, key) {
      installModule(store, rootState, path.concat(key), child, hot);
    });
  }
  
  /**
   * make localized dispatch, commit, getters and state
   * if there is no namespace, just use root ones
   */
  function makeLocalContext (store, namespace, path) {
    var noNamespace = namespace === '';
  
    var local = {
      dispatch: noNamespace ? store.dispatch : function (_type, _payload, _options) {
        var args = unifyObjectStyle(_type, _payload, _options);
        var payload = args.payload;
        var options = args.options;
        var type = args.type;
  
        if (!options || !options.root) {
          type = namespace + type;
          if (( true) && !store._actions[type]) {
            console.error(("[vuex] unknown local action type: " + (args.type) + ", global type: " + type));
            return
          }
        }
  
        return store.dispatch(type, payload)
      },
  
      commit: noNamespace ? store.commit : function (_type, _payload, _options) {
        var args = unifyObjectStyle(_type, _payload, _options);
        var payload = args.payload;
        var options = args.options;
        var type = args.type;
  
        if (!options || !options.root) {
          type = namespace + type;
          if (( true) && !store._mutations[type]) {
            console.error(("[vuex] unknown local mutation type: " + (args.type) + ", global type: " + type));
            return
          }
        }
  
        store.commit(type, payload, options);
      }
    };
  
    // getters and state object must be gotten lazily
    // because they will be changed by vm update
    Object.defineProperties(local, {
      getters: {
        get: noNamespace
          ? function () { return store.getters; }
          : function () { return makeLocalGetters(store, namespace); }
      },
      state: {
        get: function () { return getNestedState(store.state, path); }
      }
    });
  
    return local
  }
  
  function makeLocalGetters (store, namespace) {
    if (!store._makeLocalGettersCache[namespace]) {
      var gettersProxy = {};
      var splitPos = namespace.length;
      Object.keys(store.getters).forEach(function (type) {
        // skip if the target getter is not match this namespace
        if (type.slice(0, splitPos) !== namespace) { return }
  
        // extract local getter type
        var localType = type.slice(splitPos);
  
        // Add a port to the getters proxy.
        // Define as getter property because
        // we do not want to evaluate the getters in this time.
        Object.defineProperty(gettersProxy, localType, {
          get: function () { return store.getters[type]; },
          enumerable: true
        });
      });
      store._makeLocalGettersCache[namespace] = gettersProxy;
    }
  
    return store._makeLocalGettersCache[namespace]
  }
  
  function registerMutation (store, type, handler, local) {
    var entry = store._mutations[type] || (store._mutations[type] = []);
    entry.push(function wrappedMutationHandler (payload) {
      handler.call(store, local.state, payload);
    });
  }
  
  function registerAction (store, type, handler, local) {
    var entry = store._actions[type] || (store._actions[type] = []);
    entry.push(function wrappedActionHandler (payload) {
      var res = handler.call(store, {
        dispatch: local.dispatch,
        commit: local.commit,
        getters: local.getters,
        state: local.state,
        rootGetters: store.getters,
        rootState: store.state
      }, payload);
      if (!isPromise(res)) {
        res = Promise.resolve(res);
      }
      if (store._devtoolHook) {
        return res.catch(function (err) {
          store._devtoolHook.emit('vuex:error', err);
          throw err
        })
      } else {
        return res
      }
    });
  }
  
  function registerGetter (store, type, rawGetter, local) {
    if (store._wrappedGetters[type]) {
      if ((true)) {
        console.error(("[vuex] duplicate getter key: " + type));
      }
      return
    }
    store._wrappedGetters[type] = function wrappedGetter (store) {
      return rawGetter(
        local.state, // local state
        local.getters, // local getters
        store.state, // root state
        store.getters // root getters
      )
    };
  }
  
  function enableStrictMode (store) {
    store._vm.$watch(function () { return this._data.$$state }, function () {
      if ((true)) {
        assert(store._committing, "do not mutate vuex store state outside mutation handlers.");
      }
    }, { deep: true, sync: true });
  }
  
  function getNestedState (state, path) {
    return path.reduce(function (state, key) { return state[key]; }, state)
  }
  
  function unifyObjectStyle (type, payload, options) {
    if (isObject(type) && type.type) {
      options = payload;
      payload = type;
      type = type.type;
    }
  
    if ((true)) {
      assert(typeof type === 'string', ("expects string as the type, but found " + (typeof type) + "."));
    }
  
    return { type: type, payload: payload, options: options }
  }
  
  function install (_Vue) {
    if (Vue && _Vue === Vue) {
      if ((true)) {
        console.error(
          '[vuex] already installed. Vue.use(Vuex) should be called only once.'
        );
      }
      return
    }
    Vue = _Vue;
    applyMixin(Vue);
  }
  
  /**
   * Reduce the code which written in Vue.js for getting the state.
   * @param {String} [namespace] - Module's namespace
   * @param {Object|Array} states # Object's item can be a function which accept state and getters for param, you can do something for state and getters in it.
   * @param {Object}
   */
  var mapState = normalizeNamespace(function (namespace, states) {
    var res = {};
    if (( true) && !isValidMap(states)) {
      console.error('[vuex] mapState: mapper parameter must be either an Array or an Object');
    }
    normalizeMap(states).forEach(function (ref) {
      var key = ref.key;
      var val = ref.val;
  
      res[key] = function mappedState () {
        var state = this.$store.state;
        var getters = this.$store.getters;
        if (namespace) {
          var module = getModuleByNamespace(this.$store, 'mapState', namespace);
          if (!module) {
            return
          }
          state = module.context.state;
          getters = module.context.getters;
        }
        return typeof val === 'function'
          ? val.call(this, state, getters)
          : state[val]
      };
      // mark vuex getter for devtools
      res[key].vuex = true;
    });
    return res
  });
  
  /**
   * Reduce the code which written in Vue.js for committing the mutation
   * @param {String} [namespace] - Module's namespace
   * @param {Object|Array} mutations # Object's item can be a function which accept `commit` function as the first param, it can accept another params. You can commit mutation and do any other things in this function. specially, You need to pass anthor params from the mapped function.
   * @return {Object}
   */
  var mapMutations = normalizeNamespace(function (namespace, mutations) {
    var res = {};
    if (( true) && !isValidMap(mutations)) {
      console.error('[vuex] mapMutations: mapper parameter must be either an Array or an Object');
    }
    normalizeMap(mutations).forEach(function (ref) {
      var key = ref.key;
      var val = ref.val;
  
      res[key] = function mappedMutation () {
        var args = [], len = arguments.length;
        while ( len-- ) args[ len ] = arguments[ len ];
  
        // Get the commit method from store
        var commit = this.$store.commit;
        if (namespace) {
          var module = getModuleByNamespace(this.$store, 'mapMutations', namespace);
          if (!module) {
            return
          }
          commit = module.context.commit;
        }
        return typeof val === 'function'
          ? val.apply(this, [commit].concat(args))
          : commit.apply(this.$store, [val].concat(args))
      };
    });
    return res
  });
  
  /**
   * Reduce the code which written in Vue.js for getting the getters
   * @param {String} [namespace] - Module's namespace
   * @param {Object|Array} getters
   * @return {Object}
   */
  var mapGetters = normalizeNamespace(function (namespace, getters) {
    var res = {};
    if (( true) && !isValidMap(getters)) {
      console.error('[vuex] mapGetters: mapper parameter must be either an Array or an Object');
    }
    normalizeMap(getters).forEach(function (ref) {
      var key = ref.key;
      var val = ref.val;
  
      // The namespace has been mutated by normalizeNamespace
      val = namespace + val;
      res[key] = function mappedGetter () {
        if (namespace && !getModuleByNamespace(this.$store, 'mapGetters', namespace)) {
          return
        }
        if (( true) && !(val in this.$store.getters)) {
          console.error(("[vuex] unknown getter: " + val));
          return
        }
        return this.$store.getters[val]
      };
      // mark vuex getter for devtools
      res[key].vuex = true;
    });
    return res
  });
  
  /**
   * Reduce the code which written in Vue.js for dispatch the action
   * @param {String} [namespace] - Module's namespace
   * @param {Object|Array} actions # Object's item can be a function which accept `dispatch` function as the first param, it can accept anthor params. You can dispatch action and do any other things in this function. specially, You need to pass anthor params from the mapped function.
   * @return {Object}
   */
  var mapActions = normalizeNamespace(function (namespace, actions) {
    var res = {};
    if (( true) && !isValidMap(actions)) {
      console.error('[vuex] mapActions: mapper parameter must be either an Array or an Object');
    }
    normalizeMap(actions).forEach(function (ref) {
      var key = ref.key;
      var val = ref.val;
  
      res[key] = function mappedAction () {
        var args = [], len = arguments.length;
        while ( len-- ) args[ len ] = arguments[ len ];
  
        // get dispatch function from store
        var dispatch = this.$store.dispatch;
        if (namespace) {
          var module = getModuleByNamespace(this.$store, 'mapActions', namespace);
          if (!module) {
            return
          }
          dispatch = module.context.dispatch;
        }
        return typeof val === 'function'
          ? val.apply(this, [dispatch].concat(args))
          : dispatch.apply(this.$store, [val].concat(args))
      };
    });
    return res
  });
  
  /**
   * Rebinding namespace param for mapXXX function in special scoped, and return them by simple object
   * @param {String} namespace
   * @return {Object}
   */
  var createNamespacedHelpers = function (namespace) { return ({
    mapState: mapState.bind(null, namespace),
    mapGetters: mapGetters.bind(null, namespace),
    mapMutations: mapMutations.bind(null, namespace),
    mapActions: mapActions.bind(null, namespace)
  }); };
  
  /**
   * Normalize the map
   * normalizeMap([1, 2, 3]) => [ { key: 1, val: 1 }, { key: 2, val: 2 }, { key: 3, val: 3 } ]
   * normalizeMap({a: 1, b: 2, c: 3}) => [ { key: 'a', val: 1 }, { key: 'b', val: 2 }, { key: 'c', val: 3 } ]
   * @param {Array|Object} map
   * @return {Object}
   */
  function normalizeMap (map) {
    if (!isValidMap(map)) {
      return []
    }
    return Array.isArray(map)
      ? map.map(function (key) { return ({ key: key, val: key }); })
      : Object.keys(map).map(function (key) { return ({ key: key, val: map[key] }); })
  }
  
  /**
   * Validate whether given map is valid or not
   * @param {*} map
   * @return {Boolean}
   */
  function isValidMap (map) {
    return Array.isArray(map) || isObject(map)
  }
  
  /**
   * Return a function expect two param contains namespace and map. it will normalize the namespace and then the param's function will handle the new namespace and the map.
   * @param {Function} fn
   * @return {Function}
   */
  function normalizeNamespace (fn) {
    return function (namespace, map) {
      if (typeof namespace !== 'string') {
        map = namespace;
        namespace = '';
      } else if (namespace.charAt(namespace.length - 1) !== '/') {
        namespace += '/';
      }
      return fn(namespace, map)
    }
  }
  
  /**
   * Search a special module from store by namespace. if module not exist, print error message.
   * @param {Object} store
   * @param {String} helper
   * @param {String} namespace
   * @return {Object}
   */
  function getModuleByNamespace (store, helper, namespace) {
    var module = store._modulesNamespaceMap[namespace];
    if (( true) && !module) {
      console.error(("[vuex] module namespace not found in " + helper + "(): " + namespace));
    }
    return module
  }
  
  // Credits: borrowed code from fcomb/redux-logger
  
  function createLogger (ref) {
    if ( ref === void 0 ) ref = {};
    var collapsed = ref.collapsed; if ( collapsed === void 0 ) collapsed = true;
    var filter = ref.filter; if ( filter === void 0 ) filter = function (mutation, stateBefore, stateAfter) { return true; };
    var transformer = ref.transformer; if ( transformer === void 0 ) transformer = function (state) { return state; };
    var mutationTransformer = ref.mutationTransformer; if ( mutationTransformer === void 0 ) mutationTransformer = function (mut) { return mut; };
    var actionFilter = ref.actionFilter; if ( actionFilter === void 0 ) actionFilter = function (action, state) { return true; };
    var actionTransformer = ref.actionTransformer; if ( actionTransformer === void 0 ) actionTransformer = function (act) { return act; };
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