import WebSocket = require("ws");
import { WebSocketStream } from "@hediet/typed-json-rpc-websocket";
import { EventSource } from "@hediet/std/events";
export interface StartWebSocketServerOptions {
    /**
     * The port to listen on. Use `undefined` to listen on a random port.
     * You can then use `WebSocketServer.port` to get the chosen port.
     */
    port?: number | undefined;
}
/**
 * Starts a new web socket server.
 * Use `handleConnection` to handle the streams of incoming connections.
 */
export declare function startWebSocketServer(options: StartWebSocketServerOptions, handleConnection: (stream: WebSocketStream) => void): WebSocketServer;
/**
 * Wraps a websocket server.
 */
export declare class WebSocketServer {
    private readonly server;
    constructor(server: WebSocket.Server);
    /**
     * Is resolved once the socket is listening.
     */
    readonly onListening: Promise<void>;
    readonly onError: EventSource<Error, WebSocketServer>;
    /**
     * Gets the port the websocket server is running on.
     */
    readonly port: number;
    /**
     * Closes the server.
     */
    close(): void;
    /**
     * Same as `close`.
     */
    dispose(): void;
}
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