import { Worker } from "bullmq";
import { JobExecuter, WorkerCompleteHandler, WorkerErrorHandler, WorkerFailedHandler, WorkerOptions } from "../types";
import { Redis } from "ioredis";
/**
 * Management class for all Workers
 */
export declare class Workers {
    private _connection;
    /**
     * Initialize an instance of the Worker Management Class
     * @param {Redis} connection the Redis connection to use
     */
    constructor(connection: Redis);
    /**
     * Add a worker to a given queue with an executer function
     * @param {string} queue_name the name of the queue to add this worker to
     * @param {JobExecuter} executer function to execute when processing jobs
     * @returns {Worker}
     */
    addWorker: (queue_name: string, executer: JobExecuter, options: WorkerOptions, onCompleted?: WorkerCompleteHandler, onFailed?: WorkerFailedHandler, onError?: WorkerErrorHandler) => Worker;
    /**
     * Finish the worker's current job and then pause it from processing more jobs.
     * @param {Worker} worker the worker instance
     * @returns {Promise<void>}
     */
    closeWorker: (worker: Worker) => Promise<void>;
}