return response()->json(['message' => 'Success'], 200);
return response()->redirectTo('/home');
return response()->download('path/to/file.pdf');In this example, the `download()` method is used to send a file download to the user. The package library used for this could be Laravel, Symfony, or any other PHP framework that provides a `Response` class. Overall, response macro is a powerful feature in PHP that makes it easy for developers to generate custom responses to HTTP requests. The exact package library used will depend on the specific use case and the developer's preferred toolset.