import NTTrawler from './Trawler';
import { TrawlerOptions, Progress } from '../types';
export default class NTQueue extends NTTrawler {
    protected $q: any;
    protected queue: any;
    protected worker: any;
    /**
     * @deprecated Use EventEmitter's event system instead
     */
    protected cb: Record<string, (...args: any[]) => void>;
    protected since: Record<string, number>;
    protected repeatTimeout: NodeJS.Timeout | null;
    constructor(relays: string[], options: TrawlerOptions);
    /**
     * @deprecated Use emit() instead. This will be removed in a future version.
     */
    _on(key: string, ...args: any[]): Promise<void>;
    /**
     * @deprecated Use the standard EventEmitter on() method directly. This will be removed in a future version.
     */
    legacyOn(key: string, callback: (...args: any[]) => void): this;
    /**
     * @deprecated Use the standard EventEmitter on() method with prefixed events. This will be removed in a future version.
     */
    on_queue(key: string, data: any): this;
    /**
     * @deprecated Use the standard EventEmitter on() method with prefixed events. This will be removed in a future version.
     */
    on_worker(key: string, data: any): this;
    handle_queue_drained($job: any, result: any): Promise<void>;
    addFirstJob(fn: Function, target: any): void;
    pause(key?: string): void;
    clear(key?: string): void;
    start(key?: string): void;
    stop(key?: string): void;
    updateProgress(progress: Progress, $job: any): Promise<void>;
}