export default class TimerManager {
    private static _timerIds;
    static setTimeout(callback: Function, duration?: number): string;
    static setInterval(callback: Function, duration?: number): string;
    static clearTimer(timerId: string): void;
    static fireTimer(timerId: string): void;
    static clearAllTimers(): void;
    private static registerTimer;
    private static get timerId();
}
export declare function methodChannel_timer_fire(params: any): void;