/**
 * 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.
 *
 * @format
 * @flow
 */
import { WebSocketEvent } from './common';
import { WebSocketPolyfill } from './websocket.definition';
type ArrayBufferView = Int8Array | Uint8Array | Uint8ClampedArray | Int16Array | Uint16Array | Int32Array | Uint32Array | Float32Array | Float64Array | DataView;
type BinaryType = 'blob' | 'arraybuffer';
/**
 * Browser-compatible WebSockets implementation.
 *
 * See https://developer.mozilla.org/en-US/docs/Web/API/WebSocket
 * See https://github.com/websockets/ws
 */
export declare class WebSocket implements WebSocketPolyfill {
    private nativeBridge;
    static CONNECTING: number;
    static OPEN: number;
    static CLOSING: number;
    static CLOSED: number;
    static HANDLE_THREADING: boolean;
    CONNECTING: number;
    OPEN: number;
    CLOSING: number;
    CLOSED: number;
    _binaryType: BinaryType;
    onclose?: Function;
    onerror?: Function;
    onmessage?: Function;
    onopen?: Function;
    bufferedAmount?: number;
    extension?: string;
    protocol?: string;
    readyState: number;
    url: string;
    private listeners;
    constructor(url: string, protocols?: string | Array<string>, options?: {
        headers: {
            origin?: string;
            [key: string]: unknown;
        };
        nativescript: {
            handleThreading: boolean;
        };
        [key: string]: unknown;
    });
    addEventListener(type: string, callback: EventListenerOrEventListenerObject | null, options?: boolean | AddEventListenerOptions): void;
    removeEventListener(type: string, callback: EventListenerOrEventListenerObject | null, options?: boolean | EventListenerOptions): void;
    get binaryType(): BinaryType;
    set binaryType(binaryType: BinaryType);
    close(code?: number, reason?: string): void;
    send(data: string | ArrayBuffer | ArrayBufferView | Blob): void;
    ping(): void;
    dispatchEvent(event: WebSocketEvent): void;
    _close(code?: number, reason?: string): void;
    _unregisterEvents(): void;
    _websocketOpen(protocol: string): void;
    _websocketClosed(code: number, reason: string, wasClean: boolean): void;
    _websocketMessage(message: string | ArrayBuffer | ArrayBufferView | Blob): void;
    _websocketFailed(error: string): void;
    _registerEvents(): void;
}
export {};