import type { Express, NextFunction, Request, Response } from 'express-serve-static-core';
/**
 * By default Express appends the `X-Powered-By: Express` header to
 * all responses. Calling this method enables that behavior.
 * @param app The Express app to disable the header on.
 */
export declare const enableExpressDefaultPoweredByHeader: (app: Express) => void;
/**
 * By default Express appends the `X-Powered-By: Express` header to
 * all responses. Calling this method disables that behavior.
 * @param app The Express app to disable the header on.
 */
export declare const disableExpressDefaultPoweredByHeader: (app: Express) => void;
/** Express middleware that sets the X-Powered-By header to 'XYO'. */
export declare const customPoweredByHeader: (req: Request, res: Response, next: NextFunction) => void;
//# sourceMappingURL=customPoweredByHeader.d.ts.map