/**
 * Options for DelayQueue
 *
 * @export
 * @interface IDelayQueueOptions
 */
export interface IDelayQueueOptions {
    callback?: Function;
    timeout: number;
}
/**
 * Queue that runs items after specified duration
 *
 * @export
 * @class DelayQueue
 */
export default class DelayQueue {
    private queues;
    private timeouts;
    /**
     * Add a new item to the queue
     *
     * @param {string} bucket bucket name
     * @param {Function} item function that will run later
     * @param {IDelayQueueOptions} options
     * @memberof DelayQueue
     */
    push(bucket: string, item: Function, options: IDelayQueueOptions): void;
    private execute;
}