/**
 * @license
 * Copyright Elegante All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://elegante.dev/license
 */
import WebSocket, { CloseEvent, Event, MessageEvent } from 'isomorphic-ws';
export interface WebSocketFactory {
    onConnect: (ws: WebSocket) => void;
    onOpen: (ws: WebSocket, ev: Event) => void;
    onError: (ws: WebSocket, err: Event) => void;
    onClose: (ws: WebSocket, ev: CloseEvent) => void;
    onMessage: (ws: WebSocket, message: MessageEvent) => void;
}
export declare function webSocketServer(socketURL: string, apiKey?: string, token?: string | null, secret?: string | null): (factory: WebSocketFactory) => void;
export declare function getUrl(): string;