code: def _bind(self, _descriptor):
          
  
          # If the method has a default code, use it
          self._defcode = getattr(_descriptor.method, '_wsgi_code', 200)
  
          # Set up content type and serializer
          self.content_type, self.serializer = _descriptor.serializer(self.req)
docs: Bind a ResponseObject to a given action descriptor.  This
          updates the default HTTP response code and selects the
          appropriate content type and serializer for the response.