import type { MiddlewareHandler } from "hono";
/**
 * Detects if a middleware is Express/Connect style or Hono style
 *
 * Express/Connect middleware: (req, res, next) => void or (err, req, res, next) => void
 * Hono middleware: (c, next) => Promise<Response | void> or (c, next) => Response | void
 *
 * @param middleware - The middleware function to check
 * @returns true if it's Express/Connect middleware, false if it's Hono middleware
 */
export declare function isExpressMiddleware(middleware: any): boolean;
/**
 * Automatically adapts middleware to work with Hono
 * Detects if the middleware is Express/Connect style and adapts it accordingly
 * If it's already Hono-compatible middleware, returns it as-is
 *
 * @param middleware - The middleware function (Express/Connect or Hono)
 * @param middlewarePath - The path pattern the middleware is mounted at (optional, only used for Express/Connect middleware)
 * @returns A Hono middleware function
 */
export declare function adaptMiddleware(middleware: any, middlewarePath?: string): Promise<MiddlewareHandler>;
/**
 * Adapts Connect/Express middleware to work with Hono
 * Based on @hono/connect approach using node-mocks-http
 *
 * @param connectMiddleware - The Connect middleware handler
 * @param middlewarePath - The path pattern the middleware is mounted at (e.g., "/mcp-use/widgets/*")
 * @returns A Hono middleware function
 */
export declare function adaptConnectMiddleware(connectMiddleware: any, middlewarePath: string): Promise<MiddlewareHandler>;
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