code: def _serialize_object(self, response_data, request):
          
  
          if not self.factory:
              return response_data
          if isinstance(response_data, (list, tuple)):
              return map(
                  lambda item: self.factory.serialize(item, request),
                  response_data)
          else:
              return self.factory.serialize(response_data, request)
docs: Create a python datatype from the given python object.
  
          This will use ``self.factory`` object's ``serialize()`` function
          to convert the object into dictionary.
  
          If no factory is defined, this will simply return the same data
          that was given.
  
          :param response_data: data returned by the resource