///
import { Logger } from '@nestjs/common/services/logger.service';
import { EventEmitter } from 'events';
import { Observable } from 'rxjs';
import { RmqUrl } from '../external/rmq-url.interface';
import { ReadPacket, RmqOptions, WritePacket } from '../interfaces';
import { ClientProxy } from './client-proxy';
export declare class ClientRMQ extends ClientProxy {
protected readonly options: RmqOptions['options'];
protected readonly logger: Logger;
protected connection: Promise;
protected client: any;
protected channel: any;
protected urls: string[] | RmqUrl[];
protected queue: string;
protected queueOptions: any;
protected responseEmitter: EventEmitter;
protected replyQueue: string;
protected persistent: boolean;
constructor(options: RmqOptions['options']);
close(): void;
connect(): Promise;
createChannel(): Promise;
createClient(): T;
mergeDisconnectEvent(instance: any, source$: Observable): Observable;
setupChannel(channel: any, resolve: Function): Promise;
consumeChannel(channel: any): Promise;
handleError(client: any): void;
handleDisconnectError(client: any): void;
handleMessage(packet: unknown, callback: (packet: WritePacket) => any): Promise;
protected publish(message: ReadPacket, callback: (packet: WritePacket) => any): () => void;
protected dispatchEvent(packet: ReadPacket): Promise;
protected initializeSerializer(options: RmqOptions['options']): void;
protected mergeHeaders(requestHeaders?: Record): Record | undefined;
}