/**
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @noformat
 * @oncall react_native
 * @generated SignedSource<<e027b412107dfae31d8874f0879758d6>>
 *
 * This file was translated from Flow by scripts/generateTypeScriptDefinitions.js
 * Original file: packages/metro/src/lib/createWebsocketServer.js
 * To regenerate, run:
 *   js1 build metro-ts-defs (internal) OR
 *   yarn run build-ts-defs (OSS) 
 */

import ws from 'ws';

type WebsocketServiceInterface<T> = {
  readonly onClientConnect: (url: string, sendFn: (data: string) => void) => Promise<null | undefined | T>;
  readonly onClientDisconnect?: ((client: T) => unknown) | undefined;
  readonly onClientError?: ((client: T, e: Error) => unknown) | undefined;
  readonly onClientMessage?: ((client: T, message: string | Buffer | ArrayBuffer | Array<Buffer>, sendFn: (data: string) => void) => unknown) | undefined;
};
type HMROptions<TClient> = {
  websocketServer: WebsocketServiceInterface<TClient>;
};
/**
 * Returns a WebSocketServer to be attached to an existing HTTP instance. It forwards
 * the received events on the given "websocketServer" parameter. It must be an
 * object with the following fields:
 *
 *   - onClientConnect
 *   - onClientError
 *   - onClientMessage
 *   - onClientDisconnect
 */

declare function createWebsocketServer<TClient>($$PARAM_0$$: HMROptions<TClient>): ws.Server;
export default createWebsocketServer;