'use strict'; var global = require('./_global'); var dP = require('./_object-dp'); var DESCRIPTORS = require('./_descriptors'); var SPECIES = require('./_wks')('species'); module.exports = function (KEY) { var C = global[KEY]; if (DESCRIPTORS && C && !C[SPECIES]) dP.f(C, SPECIES, { configurable: true, get: function () { return this; } }); };