import WebSocket from 'ws';
import { Transport } from '@modelcontextprotocol/sdk/shared/transport';
export declare class WebSocketServerTransport implements Transport {
    private ws;
    onmessage: ((message: any) => void) | null;
    onclose: (() => void) | null;
    onerror: ((error: Error) => void) | null;
    constructor(ws: WebSocket);
    start(): Promise<void>;
    send(message: any): Promise<void>;
    close(): Promise<void>;
}
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