import type { IDisposable } from '../functions/disposer.js';
import { type IEvent } from './event.js';
export interface ITimeout extends IDisposable {
    /** Fired when the timeout has elapsed. Passes actual elapsed milliseconds. */
    readonly event: IEvent<number>;
    /** Whether the timeout is running */
    readonly isRunning: boolean;
    /** Starts the timeout */
    start(delay: number, callback?: () => void): Promise<number>;
    /** Stops the timeout, event will not be triggered. */
    stop(): void;
}
/**
 * Simple one-off `setTimeout` wrapper/abstraction.
 * Handle timeout via event, callback or Promise.
 */
export declare class Timeout implements ITimeout {
    private _cancelCb;
    private readonly _event;
    get event(): IEvent<number>;
    get isRunning(): boolean;
    start(delay: number, callback?: () => void): Promise<number>;
    stop(): void;
    dispose(): void;
}