/**
 * WebSocket Transport for Claude Code Remote protocol.
 *
 * Protocol details:
 *  - URL: wss://{host}/v1/sessions/ws/{sessionId}/subscribe?organization_uuid={orgUuid}[&replay=true]
 *  - Messages are newline-delimited JSON (\n separated)
 *  - On open: optionally send authMessage + \n
 *  - Keep-alive: client sends {"type":"keep_alive"}\n every 50s
 *  - Connection timeout: 5s
 *  - Reconnect: exponential backoff up to 5 retries
 */
import type { WsAuthMessage, WsServerMessage } from "./types";
export interface TransportOptions {
    url: string;
    authMessage?: WsAuthMessage;
    signal?: AbortSignal;
    /** Custom headers for the WebSocket upgrade request (cookie, user-agent, etc.) */
    headers?: Record<string, string>;
}
export type TransportState = "connecting" | "connected" | "disconnected" | "error";
export declare class WsTransport {
    private ws;
    private keepAliveTimer;
    private messageQueue;
    private messageResolve;
    private _state;
    private _exitError;
    private readyResolve;
    private readyReject;
    private readyPromise;
    private abortHandler;
    private closed;
    readonly options: TransportOptions;
    get state(): TransportState;
    get exitError(): Error | null;
    constructor(options: TransportOptions);
    /** Wait for the connection to be ready */
    waitReady(): Promise<void>;
    private initialize;
    private enqueueMessage;
    /** Write a message to the WebSocket */
    write(data: string): void;
    /** Signal end of input (no-op for WS, but matches SDK interface) */
    endInput(): void;
    /** Async iterator over incoming messages */
    readMessages(): AsyncGenerator<WsServerMessage>;
    /** Close the connection */
    close(): void;
    get isOpen(): boolean;
}
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