code: def _reload_maybe(self):
          
          ConfigModel = apps.get_model('djconfig.Config')
  
          data = dict(
              ConfigModel.objects
                  .filter(key='_updated_at')
                  .values_list('key', 'value'))
  
          if (not hasattr(self, '_updated_at') or
                  self._updated_at != data.get('_updated_at')):
              self._reload()
docs: Reload the config if the config\
          model has been updated. This is called\
          once on every request by the middleware.\
          Should not be called directly.