code: def get_attribute(obj, value):
      
      if type(obj) == dict:
          return dict.get(obj, value)
      else:
          return getattr(obj, value)
docs: Normally the result of list_items for listviews are a set of model objects.
      But when you want a GROUP_BY query (with 'values' method), than
      the result will be a dict. This method will help you find an item for
      either objects or dictionaries.