import Queue, { RateLimiter } from 'bull';
export declare type TaskRunnder = (task: any, callback: any) => any | void;
export declare class AScraperQueue {
    Q: Queue.Queue;
    uniqueCache: Record<string, number>;
    onFinish: any;
    N: number;
    queueLength: number;
    queueLengtnLoading: boolean;
    queueName: string;
    onDrain: any;
    logging: boolean;
    constructor({ queueName, runner, onDrain, onFinish, limiter, N, logging }: {
        queueName: string;
        runner: TaskRunnder;
        onDrain?: (...any: any[]) => void;
        onFinish?: (...any: any[]) => void;
        N?: number;
        limiter?: RateLimiter;
        logging?: boolean;
    });
    tryOnDrain(): void;
    updateQueueLength(): void;
    clearQueue(): Promise<void>;
    empty(): Promise<void>;
    obliterate(): Promise<void>;
    add(task: any, options?: {}): boolean;
    length(): Promise<number>;
    running(): Promise<number>;
}
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