import { Request, Response } from 'express';
import { StreamableHTTPServerTransport } from '@modelcontextprotocol/sdk/server/streamableHttp.js';
/**
 * Transport manager for handling multiple HTTP transports
 */
export declare class TransportManager {
    private transports;
    /**
     * Creates a new transport instance
     * @returns A new transport instance
     */
    createTransport(): StreamableHTTPServerTransport;
    /**
     * Handle HTTP requests for a transport
     * @param req Express request object
     * @param res Express response object
     * @param transport Optional transport to handle the request (if not provided, a default one will be used)
     */
    handleRequest(req: Request, res: Response, transport?: StreamableHTTPServerTransport): Promise<void>;
    /**
     * Get a transport by session ID
     * @param sessionId The session ID
     * @returns The transport, or undefined if not found
     */
    getTransport(sessionId: string): StreamableHTTPServerTransport | undefined;
    /**
     * Remove a transport by session ID
     * @param sessionId The session ID
     */
    removeTransport(sessionId: string): void;
    /**
     * Get all available session IDs
     * @returns Array of session IDs
     */
    getSessionIds(): string[];
    /**
     * Get the number of active transports
     * @returns Number of active transports
     */
    getActiveTransportCount(): number;
}
/**
 * Get the transport manager instance
 * @returns Transport manager instance
 */
export declare function getTransportManager(): TransportManager;