if(typeof Object.assign!='function'){Object.defineProperty(Object,"assign",{value:function assign(target,varArgs){'use strict';if(target==null){throw new TypeError('Cannot convert undefined or null to object')}
var to=Object(target);for(var index=1;index<arguments.length;index++){var nextSource=arguments[index];if(nextSource!=null){for(var nextKey in nextSource){if(Object.prototype.hasOwnProperty.call(nextSource,nextKey)){to[nextKey]=nextSource[nextKey]}}}}
return to},writable:!0,configurable:!0})}