code: def _make_namespace(self) -> Namespace:
          
          namespace = Namespace(
              name=self._get_namespace_name(),
              keyword=self._get_namespace_keyword(),
              url=self._get_namespace_url(),
              version=str(time.asctime()),
          )
          self.session.add(namespace)
  
          entries = self._get_namespace_entries(namespace)
          self.session.add_all(entries)
  
          t = time.time()
          log.info('committing models')
          self.session.commit()
          log.info('committed models in %.2f seconds', time.time() - t)
  
          return namespace
docs: Make a namespace.