code: def db_group(self):
          '''str: database system group (defaults to
          :attr:`db_user <tmdeploy.config.AnsibleHostVariableSection.db_user>`)
          '''
          if self._db_group is None:
              self._db_group = self.db_user
          return self._db_grouf db_group(self):
          '''str: database system group (defaults to
          :attr:`db_user <tmdeploy.config.AnsibleHostVariableSection.db_user>`)
          '''
          if self._db_group is None:
              self._db_group = self.db_user
          return self._db_group
docs: str: database system group (defaults to
          :attr:`db_user <tmdeploy.config.AnsibleHostVariableSection.db_user>`)