import { HippyTypes } from '../types';
declare class WebSocket implements HippyTypes.WebSocket {
    protocol: string;
    url: string;
    readyState: number;
    webSocketCallbackId: number;
    webSocketId: number | undefined;
    readonly webSocketCallbacks: {
        onOpen?: (...args: any[]) => void;
        onClose?: (...args: any[]) => void;
        onError?: (...args: any[]) => void;
        onMessage?: (...args: any[]) => void;
    };
    constructor(url: any, protocols: string[] | string, extrasHeaders: {
        [key: string]: string;
    });
    close(code: number, reason: string): void;
    send(data: string | undefined): void;
    set onopen(callback: () => void);
    set onclose(callback: () => void);
    set onerror(callback: () => void);
    set onmessage(callback: (data: any) => void);
    private onWebSocketEvent;
}
export default WebSocket;