import type { GatewayMessage } from "../types.js";
import type { TransportClient, TransportOptions } from "./types.js";
export declare function describeWebSocketError(error: unknown, url: string): string;
/**
 * WebSocket transport client
 */
export declare class WebSocketTransport implements TransportClient {
    private ws;
    private url;
    private options;
    private messageHandler;
    private reconnectAttempts;
    private reconnectTimer;
    constructor(url: string, options?: TransportOptions);
    connect(): Promise<void>;
    disconnect(): void;
    send(message: GatewayMessage): void;
    onMessage(handler: (message: GatewayMessage) => void): void;
    isConnected(): boolean;
    getType(): "websocket";
    private scheduleReconnect;
}