code: def render_delete_many(self, value, system, common_kw):
          
          if isinstance(value, dict):
              return JHTTPOk(extra=value)
          msg = 'Deleted {} {}(s) objects'.format(
              value, system['view'].Model.__name__)
          return JHTTPOk(msg, **common_kw.copy())
docs: Render response for view `delete_many` method (collection DELETE)