/**
 * uuid 生成函数
 * @param split 分隔符
 */
export declare const genUid: (split?: string) => string;
/**
 * 一个简易的sleep函数
 */
export declare const sleep: (ms: number) => Promise<unknown>;
/**
 * 一个简易的阻塞函数
 */
export declare const awaitFor: (cb: () => boolean, timeout?: number, errText?: string) => Promise<boolean>;