优化:通道同步任务 增加：根据用户统计未读总数

liusuyi

2024-07-23 811b14aa5cd2bd6d4313b43dc38ce87cd938f3b0

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var global = require('../internals/global');
var isCallable = require('../internals/is-callable');
 
var WeakMap = global.WeakMap;
 
module.exports = isCallable(WeakMap) && /native code/.test(String(WeakMap));