/// <reference types="node" />
import EventEmitter from "events";
import { DiscoveryModuleOptions } from "./DiscoveryModule.types";
export declare class DiscoveryModule extends EventEmitter {
    private readonly connectionFactory;
    private readonly instanceDiscovery;
    constructor(options: DiscoveryModuleOptions);
    discover(services: string[], timeout: number): void;
    start?(): Promise<void>;
    stop?(): Promise<void>;
}