Build 547442stable

Module 232258

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Source Raw

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