import type { CdpClient } from './types.js';
export declare class ProxyClient implements CdpClient {
    private readonly socket;
    private buf;
    private nextId;
    private readonly pending;
    private readonly ready;
    private isClosed;
    private defaultTimeout;
    private constructor();
    /** Open a client connection to the proxy socket and wait until connected. */
    static open(socketPath: string, defaultTimeout?: number): Promise<ProxyClient>;
    get connected(): boolean;
    /** Set the per-request timeout used by subsequent send()s. */
    setDefaultTimeout(ms: number): void;
    /** The proxy relays request/response only; no CDP events are delivered. Nothing
     * in the chrome-use backend subscribes to events, so this is a no-op. */
    on(): () => void;
    private onData;
    send<T = unknown>(method: string, params?: Record<string, unknown>, sessionId?: string): Promise<T>;
    close(): void;
}
//# sourceMappingURL=proxy-client.d.ts.map