/// <reference types="ws" />
/// <reference types="node" />
import { WebsocketInterface, WebsocketConfig } from "../domain/websocket-interface";
import { handlerType } from "../domain/handler-type";
import { EventEmitter } from "events";
import IsoWebSocket from "isomorphic-ws";
export declare class NodeWebSocket implements WebsocketInterface {
    config: WebsocketConfig;
    client: IsoWebSocket | WebSocket | null;
    events: EventEmitter;
    constructor(config: WebsocketConfig);
    open(): void;
    close(): void;
    send(message: string): void;
    _handleOpen: () => void;
    _handleClose: () => void;
    _handleError: () => void;
    _handleMessage: (data: any) => void;
    on(event: string, handler: handlerType): void;
    state(): number;
}
declare const _default: (config: WebsocketConfig) => NodeWebSocket;
export default _default;