import { WebSocketServer } from './server';
import { Observable } from 'rxjs';
export declare class SocketServerService {
    private socketServer;
    constructor(socketServer: WebSocketServer);
    /**
     * Get WebSocket Server instance
     *
     * @returns Server
     */
    instance(): WebSocketServer;
    /**
     * Stop the WebSocket Server
     *
     * @returns Observable
     */
    stop(): Observable<void>;
}