import { WebSocket } from 'ws';
import { Transport } from '@modelcontextprotocol/sdk/shared/transport.js';
import { JSONRPCMessage } from '@modelcontextprotocol/sdk/types.js';
export declare class WebSocketTransport implements Transport {
    private ws;
    private _onclose?;
    private _onerror?;
    private _onmessage?;
    constructor(ws: WebSocket);
    private setupWebSocket;
    start(): Promise<void>;
    send(message: JSONRPCMessage): Promise<void>;
    close(): Promise<void>;
    set onclose(handler: () => void);
    set onerror(handler: (error: Error) => void);
    set onmessage(handler: (message: JSONRPCMessage) => void);
}
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