docs: def multipart_delete(self, multipart):
          """Abort a multipart upload.
  
          :param multipart: A :class:`invenio_files_rest.models.MultipartObject`
              instance.
          :returns: A Flask response.
          """
          multipart.delete()
          db.session.commit()
          if multipart.file_id:
              remove_file_data.delay(str(multipart.file_id))
          return self.make_response('', 204)