/**
 * Wraps a browser {@link WebSocket} so every `message` listener receives payloads
 * after {@link normalizeRealtimeEvent} has been applied to the frame.
 *
 * The OpenAI Agents `OpenAIRealtimeWebSocket` transport parses each incoming frame
 * twice: once inside `_onMessage` and again in its own `message` listener for audio,
 * interruption, and response sequencing. Overriding `_onMessage` alone does not affect
 * that second parse, so normalization must happen before any SDK listener runs.
 *
 * This wrapper intercepts `addEventListener` / `removeEventListener` for `message`
 * only; all other behavior is delegated to the underlying socket.
 */
export declare class GrokNormalizingWebSocket {
    private readonly inner;
    private readonly messageWrappers;
    constructor(url: string | URL, protocols?: string | string[]);
    get binaryType(): BinaryType;
    set binaryType(value: BinaryType);
    get bufferedAmount(): number;
    get extensions(): string;
    get onclose(): ((this: WebSocket, ev: CloseEvent) => unknown) | null;
    set onclose(value: ((this: WebSocket, ev: CloseEvent) => unknown) | null);
    get onerror(): ((this: WebSocket, ev: Event) => unknown) | null;
    set onerror(value: ((this: WebSocket, ev: Event) => unknown) | null);
    get onmessage(): ((this: WebSocket, ev: MessageEvent) => unknown) | null;
    set onmessage(value: ((this: WebSocket, ev: MessageEvent) => unknown) | null);
    get onopen(): ((this: WebSocket, ev: Event) => unknown) | null;
    set onopen(value: ((this: WebSocket, ev: Event) => unknown) | null);
    get protocol(): string;
    get readyState(): number;
    get url(): string;
    close(code?: number, reason?: string): void;
    send(data: string | ArrayBufferLike | Blob | ArrayBufferView): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject | null, options?: boolean | AddEventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject | null, options?: boolean | EventListenerOptions): void;
    dispatchEvent(event: Event): boolean;
    /**
     * Builds a `message` handler that applies Grok/OpenAI shape normalization
     * before invoking the SDK's listener.
     */
    private wrapMessageListener;
}
/**
 * Opens a realtime WebSocket with Grok/xAI protocol headers and incoming
 * message normalization compatible with the OpenAI Agents transport.
 *
 * @param url - WebSocket URL (e.g. xAI realtime endpoint).
 * @param protocols - Subprotocol list; must include `realtime` and the xAI secret subprotocol.
 * @returns A socket compatible with {@link WebSocket} for the Agents SDK transport.
 */
export declare function createGrokNormalizingWebSocket(url: string | URL, protocols: string | string[]): WebSocket;
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