/**
 * A time scheduler to orchestrate time in the bus.
 * @category JDOM
 */
export interface Scheduler {
    /**
     * Gets the current timestamp
     */
    get timestamp(): number;
    /**
     * Reset time
     * @param delta
     */
    resetTime(delta: number): void;
    /**
     * Start a timeout timer
     */
    setTimeout(handler: (...args: any[]) => void, delay: number, ...args: any[]): any;
    /**
     * Cancel an existing timeout timer
     */
    clearTimeout(handle: any): void;
    /**
     * Start an interval timer
     */
    setInterval(handler: (...args: any[]) => void, delay: number, ...args: any[]): any;
    /**
     * Clear an interval timer
     */
    clearInterval(handle: any): void;
}
/** @internal */
export declare class WallClockScheduler implements Scheduler {
    private _now;
    private _startTime;
    constructor();
    get timestamp(): number;
    resetTime(delta?: number): void;
    setTimeout(handler: (...args: any[]) => void, delay: number, ...args: any[]): any;
    clearTimeout(handle: any): void;
    setInterval(handler: (...args: any[]) => void, delay: number, ...args: any[]): any;
    clearInterval(handle: any): void;
}
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