import { Middleware } from "../core/router.js";
/**
 * PoweredBy Middleware
 * Adds an "X-Powered-By" header to responses.
 *
 * @param {string} [serverName] - Optional custom server name; defaults to "TezX".
 * @returns {Middleware} - A middleware function for setting the "X-Powered-By" header.
 *
 * @example
 * ```ts
 * import { poweredBy } from 'tezx';
 *
 * app.use(poweredBy("MyServer"));
 * ```
 */
export declare const poweredBy: (serverName?: string) => Middleware;