code: def read_backend(self):
          '''Returns the :class:`stdnet.BackendStructure`.
          '''
          session = self.session
          if session is not None:
              if self._field:
                  return session.model(self._field.model).read_backend
              else:
                  return session.model(self).read_backenf read_backend(self):
          '''Returns the :class:`stdnet.BackendStructure`.
          '''
          session = self.session
          if session is not None:
              if self._field:
                  return session.model(self._field.model).read_backend
              else:
                  return session.model(self).read_backend
docs: Returns the :class:`stdnet.BackendStructure`.