import type { ContentTypeSniffingOptions } from '../types.ts';
import { noop } from '../noop.ts';
/**
 * Factory function that returns a function to add `X-Content-Type-Options`
 * header based upon given user options. Prevents MIME type sniffing attacks.
 *
 * @param options - Content type sniffing configuration options
 *
 * @example
 * const noSniffGuard = noSniffFactory({ enabled: true })
 */
export declare function noSniffFactory(options: ContentTypeSniffingOptions): typeof noop;