"use strict"; var create = Object.create, getPrototypeOf = Object.getPrototypeOf, plainObject = {}; module.exports = function (/* CustomCreate*/) { var setPrototypeOf = Object.setPrototypeOf, customCreate = arguments[0] || create; if (typeof setPrototypeOf !== "function") return false; return getPrototypeOf(setPrototypeOf(customCreate(null), plainObject)) === plainObject; };