Module 551306

function(e){"use strict";var t,r="function"==typeof Map&&Map.prototype?Map:null,n="function"==typeof Set&&Set.prototype?Set:null;n||(t=function(e){return!1});var i=r?Map.prototype.has:null,o=n?Set.prototype.has:null;t||o||(t=function(e){return!1}),e.exports=t||function(e){if(!e||"object"!=typeof e)return!1;try{if(o.call(e),i)try{i.call(e)}catch(e){return!0}return e instanceof n}catch(e){}return!1}}