export default class Queue {
    private queueBase;
    private logBase;
    private statBase;
    private ttl;
    constructor(deta: any, ttl?: number, queueName?: string);
    generateLowKey(): string;
    generateHighKey(): string;
    generateStatBaseObject(queue: string): Promise<boolean>;
    push(item: any, queue?: string): Promise<void>;
    pop(limit?: number, queue?: string): Promise<any | undefined>;
    process(queue: string, worker: (item: any) => void, concurrency?: number): Promise<void>;
    private emptyBase;
    empty(): Promise<void>;
}