/**
* 判断是否是微信浏览器
*/
export declare function isWeixin(): boolean;
/**
* 延迟, 用于 async await 等待
* 用例:
* (async ()=>{
* console.log('等待1s');
* await delay(1000);
* console.log('完成');
* })();
* @param ms {number} 毫秒
*/
export declare function delay(ms: number): Promise<{}>;