import { EventEmitter, IRuntime } from '@rongcloud/engine';
export declare const getUUID22: () => string;
/**
 * 生成随机 id 字符串
 */
export declare const generateRandomId: () => string;
export declare const timerSetTimeout: (func: Function, timeout: number) => number;
export declare const timerInterval: (fun: Function, itv: number) => number;
export declare const eventEmitter: EventEmitter;
/**
 * call deviceId 存储在 sessionStorage 中
 */
export declare const getCallDeviceId: (runtime: IRuntime) => string;
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