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_typeof = typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; };\n\nimport { initializePAL, isInitialized } from 'aurelia-pal';\n\nexport var _PLATFORM = {\n location: window.location,\n history: window.history,\n addEventListener: function addEventListener(eventName, callback, capture) {\n this.global.addEventListener(eventName, callback, capture);\n },\n removeEventListener: function removeEventListener(eventName, callback, capture) {\n this.global.removeEventListener(eventName, callback, capture);\n },\n\n performance: window.performance,\n requestAnimationFrame: function requestAnimationFrame(callback) {\n return this.global.requestAnimationFrame(callback);\n }\n};\n\nif (typeof FEATURE_NO_IE === 'undefined') {\n var test = function test() {};\n\n if (test.name === undefined) 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updated = true;\n }\n } while (++i < ii);\n\n if (updated) {\n this._updateClassName();\n }\n };\n\n classListProto.remove = function () {\n var tokens = arguments;\n var i = 0;\n var ii = tokens.length;\n var token = void 0;\n var updated = false;\n var index = void 0;\n\n do {\n token = tokens[i] + '';\n index = checkTokenAndGetIndex(this, token);\n while (index !== -1) {\n this.splice(index, 1);\n updated = true;\n index = checkTokenAndGetIndex(this, token);\n }\n } while (++i < ii);\n\n if (updated) {\n this._updateClassName();\n }\n };\n\n classListProto.toggle = function (token, force) {\n token += '';\n\n var result = this.contains(token);\n var method = result ? force !== true && 'remove' : force !== false && 'add';\n\n if (method) {\n this[method](token);\n }\n\n if (force === true || force === false) {\n return force;\n }\n\n return !result;\n };\n\n classListProto.toString = function () {\n return this.join(' ');\n };\n\n Object.defineProperty(Element.prototype, 'classList', 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'undefined') {\n var _filterEntries = function _filterEntries(key, value) {\n var i = 0,\n n = _entries.length,\n result = [];\n for (; i < n; i++) {\n if (_entries[i][key] == value) {\n result.push(_entries[i]);\n }\n }\n return result;\n };\n\n var _clearEntries = function _clearEntries(type, name) {\n var i = _entries.length,\n entry;\n while (i--) {\n entry = _entries[i];\n if (entry.entryType == type && (name === void 0 || entry.name == name)) {\n _entries.splice(i, 1);\n }\n }\n };\n\n // @license http://opensource.org/licenses/MIT\n if ('performance' in window === false) {\n window.performance = {};\n }\n\n if ('now' in window.performance === false) {\n var nowOffset = Date.now();\n\n if (performance.timing && performance.timing.navigationStart) {\n nowOffset = performance.timing.navigationStart;\n }\n\n window.performance.now = function now() {\n return Date.now() - nowOffset;\n };\n }\n\n var startOffset = Date.now ? Date.now() : +new Date();\n var _entries = [];\n var _marksIndex = {};\n\n ;\n\n if (!window.performance.mark) {\n window.performance.mark = window.performance.webkitMark || function (name) {\n var mark = {\n name: name,\n entryType: \"mark\",\n startTime: window.performance.now(),\n duration: 0\n };\n\n _entries.push(mark);\n _marksIndex[name] = mark;\n };\n }\n\n if (!window.performance.measure) {\n window.performance.measure = window.performance.webkitMeasure || function (name, startMark, endMark) {\n startMark = _marksIndex[startMark].startTime;\n endMark = _marksIndex[endMark].startTime;\n\n _entries.push({\n name: name,\n entryType: \"measure\",\n startTime: startMark,\n duration: endMark - startMark\n });\n };\n }\n\n if (!window.performance.getEntriesByType) {\n window.performance.getEntriesByType = window.performance.webkitGetEntriesByType || function (type) {\n return _filterEntries(\"entryType\", type);\n };\n }\n\n if (!window.performance.getEntriesByName) {\n window.performance.getEntriesByName = window.performance.webkitGetEntriesByName || function (name) {\n return _filterEntries(\"name\", name);\n };\n }\n\n if (!window.performance.clearMarks) {\n window.performance.clearMarks = window.performance.webkitClearMarks || function (name) {\n _clearEntries(\"mark\", name);\n };\n }\n\n if (!window.performance.clearMeasures) {\n window.performance.clearMeasures = window.performance.webkitClearMeasures || function (name) {\n _clearEntries(\"measure\", name);\n };\n }\n\n _PLATFORM.performance = window.performance;\n}\n\nif (typeof FEATURE_NO_IE === 'undefined') {\n var con = window.console = window.console || {};\n var nop = function nop() {};\n\n if (!con.memory) con.memory = {};\n ('assert,clear,count,debug,dir,dirxml,error,exception,group,' + 'groupCollapsed,groupEnd,info,log,markTimeline,profile,profiles,profileEnd,' + 'show,table,time,timeEnd,timeline,timelineEnd,timeStamp,trace,warn').split(',').forEach(function (m) {\n if (!con[m]) con[m] = nop;\n });\n\n if (_typeof(con.log) === 'object') {\n 'log,info,warn,error,assert,dir,clear,profile,profileEnd'.split(',').forEach(function (method) {\n console[method] = this.bind(console[method], console);\n }, Function.prototype.call);\n }\n}\n\nif (typeof FEATURE_NO_IE === 'undefined') {\n if (!window.CustomEvent || typeof window.CustomEvent !== 'function') {\n var _CustomEvent = function _CustomEvent(event, params) {\n params = params || {\n bubbles: false,\n cancelable: false,\n detail: undefined\n };\n\n var evt = document.createEvent('CustomEvent');\n evt.initCustomEvent(event, params.bubbles, params.cancelable, params.detail);\n return evt;\n };\n\n _CustomEvent.prototype = window.Event.prototype;\n window.CustomEvent = _CustomEvent;\n }\n}\n\nif (Element && !Element.prototype.matches) {\n var proto = Element.prototype;\n proto.matches = proto.matchesSelector || proto.mozMatchesSelector || proto.msMatchesSelector || proto.oMatchesSelector || proto.webkitMatchesSelector;\n}\n\nexport var _FEATURE = {\n shadowDOM: !!HTMLElement.prototype.attachShadow,\n scopedCSS: 'scoped' in document.createElement('style'),\n htmlTemplateElement: function () {\n var d = document.createElement('div');\n d.innerHTML = '';\n return 'content' in d.children[0];\n }(),\n mutationObserver: !!(window.MutationObserver || window.WebKitMutationObserver),\n ensureHTMLTemplateElement: function ensureHTMLTemplateElement(t) {\n return t;\n }\n};\n\nif (typeof FEATURE_NO_IE === 'undefined') {\n var isSVGTemplate = function isSVGTemplate(el) {\n return el.tagName === 'template' && el.namespaceURI === 'http://www.w3.org/2000/svg';\n };\n\n var fixSVGTemplateElement = function fixSVGTemplateElement(el) {\n var template = el.ownerDocument.createElement('template');\n var attrs = el.attributes;\n var length = attrs.length;\n var attr = void 0;\n\n el.parentNode.insertBefore(template, el);\n\n while (length-- > 0) {\n attr = attrs[length];\n template.setAttribute(attr.name, attr.value);\n el.removeAttribute(attr.name);\n }\n\n el.parentNode.removeChild(el);\n\n return fixHTMLTemplateElement(template);\n };\n\n var fixHTMLTemplateElement = function fixHTMLTemplateElement(template) {\n var content = template.content = document.createDocumentFragment();\n var child = void 0;\n\n while (child = template.firstChild) {\n content.appendChild(child);\n }\n\n return template;\n };\n\n var fixHTMLTemplateElementRoot = function fixHTMLTemplateElementRoot(template) {\n var content = fixHTMLTemplateElement(template).content;\n var childTemplates = content.querySelectorAll('template');\n\n for (var i = 0, ii = childTemplates.length; i < ii; ++i) {\n var child = childTemplates[i];\n\n if (isSVGTemplate(child)) {\n fixSVGTemplateElement(child);\n } else {\n fixHTMLTemplateElement(child);\n }\n }\n\n return template;\n };\n\n if (!_FEATURE.htmlTemplateElement) {\n _FEATURE.ensureHTMLTemplateElement = fixHTMLTemplateElementRoot;\n }\n}\n\nvar shadowPoly = window.ShadowDOMPolyfill || null;\n\nexport var _DOM = {\n Element: Element,\n NodeList: NodeList,\n SVGElement: SVGElement,\n boundary: 'aurelia-dom-boundary',\n addEventListener: function addEventListener(eventName, callback, capture) {\n document.addEventListener(eventName, callback, capture);\n },\n removeEventListener: function removeEventListener(eventName, callback, capture) {\n document.removeEventListener(eventName, callback, capture);\n },\n adoptNode: function adoptNode(node) {\n return document.adoptNode(node);\n },\n createAttribute: function createAttribute(name) {\n return document.createAttribute(name);\n },\n createElement: function createElement(tagName) {\n return document.createElement(tagName);\n },\n createTextNode: function createTextNode(text) {\n return document.createTextNode(text);\n },\n createComment: function createComment(text) {\n return document.createComment(text);\n },\n createDocumentFragment: function createDocumentFragment() {\n return document.createDocumentFragment();\n },\n createTemplateElement: function createTemplateElement() {\n var template = document.createElement('template');\n return _FEATURE.ensureHTMLTemplateElement(template);\n },\n createMutationObserver: function createMutationObserver(callback) {\n return new (window.MutationObserver || window.WebKitMutationObserver)(callback);\n },\n createCustomEvent: function createCustomEvent(eventType, options) {\n return new window.CustomEvent(eventType, options);\n },\n dispatchEvent: function dispatchEvent(evt) {\n document.dispatchEvent(evt);\n },\n getComputedStyle: function getComputedStyle(element) {\n return window.getComputedStyle(element);\n },\n getElementById: function getElementById(id) {\n return document.getElementById(id);\n },\n querySelector: function querySelector(query) {\n return document.querySelector(query);\n },\n querySelectorAll: function querySelectorAll(query) {\n return document.querySelectorAll(query);\n },\n nextElementSibling: function nextElementSibling(element) {\n if (element.nextElementSibling) {\n return element.nextElementSibling;\n }\n do {\n element = element.nextSibling;\n } while (element && element.nodeType !== 1);\n return element;\n },\n createTemplateFromMarkup: function createTemplateFromMarkup(markup) {\n var parser = document.createElement('div');\n parser.innerHTML = markup;\n\n var temp = parser.firstElementChild;\n if (!temp || temp.nodeName !== 'TEMPLATE') {\n throw new Error('Template markup must be wrapped in a