/**
 * @fileoverview Externs for webcomponents polyfills
 * @externs
 * @suppress {duplicate}
 *
 * @license
 * Copyright (c) 2017 The Polymer Project Authors. All rights reserved.
 * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
 * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
 * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
 * Code distributed by Google as part of the polymer project is also
 * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
 */
var n={whenReady:function(n){},importForElement:function(n){}};window.HTMLImports=n;var e={};e.inUse,e.composedPath,e.flush=function(){},e.observeChildren=function(n,e){},e.unobserveChildren=function(n){},e.patch=function(n){},e.flushInitial=function(n){},window.ShadyDOM=e;window.WebComponents={},HTMLElement.prototype._activeElement,HTMLTemplateElement.decorate=function(n){},CustomElementRegistry.prototype.polyfillWrapFlushCallback=function(n){},CSSStyleSheet.prototype.replaceSync=function(n){};