/**
 * @license
 * Copyright 2025 Vybestack LLC
 * SPDX-License-Identifier: Apache-2.0
 */
export declare const REQUEST_TIMEOUT_MS = 30000;
export declare const IDLE_TIMEOUT_MS = 300000;
export declare const PROTOCOL_VERSION = 1;
export type ProxyResponse = {
    ok: boolean;
    data?: Record<string, unknown>;
    error?: string;
    code?: string;
    retryAfter?: number;
};
export declare class ProxySocketClient {
    private readonly socketPath;
    private socket;
    private decoder;
    private pendingRequests;
    private handshakeComplete;
    private idleTimer;
    private connectingPromise;
    private handshakeResolver;
    constructor(socketPath: string);
    ensureConnected(): Promise<void>;
    private isConnected;
    request(op: string, payload: Record<string, unknown>): Promise<ProxyResponse>;
    private sendRequest;
    close(): void;
    gracefulClose(): void;
    private connectAndHandshake;
    private connect;
    private handshake;
    private onData;
    private onError;
    private onClose;
    private handlePartialFrameTimeout;
    private destroy;
    private resetIdleTimer;
    private cancelIdleTimer;
}