docs: def _to_dict(self):
          """Return a json dictionary representing this model."""
          _dict = {}
          if hasattr(self, 'scope') and self.scope is not None:
              _dict['scope'] = self.scope
          if hasattr(self, 'status') and self.status is not None:
              _dict['status'] = self.status
          if hasattr(
                  self,
                  'status_description') and self.status_description is not None:
              _dict['status_description'] = self.status_description
          if hasattr(self, 'last_trained') and self.last_trained is not None:
              _dict['last_trained'] = self.last_trained
          return _dict