export declare class TestWebSocket extends EventTarget {
    #private;
    static readonly CONNECTING = 0;
    static readonly OPEN = 1;
    static readonly CLOSING = 2;
    static readonly CLOSED = 3;
    readonly CONNECTING = 0;
    readonly OPEN = 1;
    readonly CLOSING = 2;
    readonly CLOSED = 3;
    binaryType: BinaryType;
    bufferedAmount: number;
    readyState: number;
    constructor(url: string, protocol?: string);
    send(payload: string | Uint8Array | ArrayBuffer | Buffer): void;
    close(code?: number, reason?: string): void;
}