https://github.com/symfony/symfony/blob/master/src/Symfony/Component/HttpFoundation/Response.php#L454

Response->setStatusCode() is also used in:

1. RedirectResponse
2. JsonResponse
3. StreamedResponse
4. BinaryFileResponse

But in PHPDocs written @return Response >> appears some warnings in IDE
Must be:
@return static
or
@return Response|RedirectResponse|JsonResponse|StreamedResponse|BinaryFileResponse