/**
 * Time.ts
 *
 * @package  vrkd/src/throttle
 * @author  Fernando Salazar
 */
import Abstract from "./Abstract";
import { Event } from "./../event/Default";
/**
 * Throttle by time class, implements a timeout
 * based on duration.
 */
export declare class TimeThrottle extends Abstract {
    private _duration;
    private _timeoutEvent;
    private _owe;
    private _inProgress;
    private _cap;
    /**
     * Class constructor
     */
    constructor($e: Event, $duration?: number);
    /**
     * Trigger throttle
     */
    trigger(): void;
    /**
     * Trigger timeout
     */
    private _timeoutHandle;
}