/// <reference types="node" />
import { Duplex } from 'stream';
import * as WebSocket from 'ws';
export interface IWebSocketStreamOptions {
    binary: boolean;
}
export declare class WebSocketStream extends Duplex {
    private socket;
    readonly options: IWebSocketStreamOptions;
    hasWritten: boolean;
    constructor(socket: WebSocket, options: IWebSocketStreamOptions);
    _write(chunk: any, encoding: string, callback: (error?: Error) => void): void;
    _read(size: number): void;
    private messageHandler;
}