docs: def set_response_defaults(self, response, request=None):
          """Sets up the response defaults that are defined in the URL route"""
          for header_name, header_value in self.response_headers:
              response.set_header(header_name, header_value)
          if self.set_status:
              response.status = self.set_status
          response.content_type = self.content_type(request, response)