import { Type, Logger } from '@nestjs/common';
import { ModulesContainer, ModuleRef, Reflector } from '@nestjs/core';
import { InstanceWrapper } from '@nestjs/core/injector/instance-wrapper';
import { Module } from '@nestjs/core/injector/module';
import { Injectable } from '@nestjs/common/interfaces';
import { Queue } from 'bull';
export declare class BullExplorer {
    private readonly moduleRef;
    private readonly modulesContainer;
    private readonly logger;
    private readonly reflector;
    constructor(moduleRef: ModuleRef, modulesContainer: ModulesContainer, logger: Logger, reflector: Reflector);
    explore(): void;
    static handleProcessor(instance: any, key: any, queue: any, options?: any): void;
    static handleListener(instance: any, key: any, queue: any, options: any): void;
    static isQueueComponent(target: Type<any> | Function, reflector?: Reflector): boolean;
    static getQueueComponentMetadata(target: Type<any> | Function, reflector?: Reflector): any;
    static isProcessor(target: Type<any> | Function, reflector?: Reflector): boolean;
    static isListener(target: Type<any> | Function, reflector?: Reflector): boolean;
    static getProcessorMetadata(target: Type<any> | Function, reflector?: Reflector): any;
    static getListenerMetadata(target: Type<any> | Function, reflector?: Reflector): any;
    static getQueue(moduleRef: ModuleRef, queueToken: string): Queue;
    static getQueueComponents(modules: Module[]): InstanceWrapper<Injectable>[];
}