code: def contains_all(self, items):
          
          check_not_none(items, "Items can't be None")
          data_items = []
          for item in items:
              check_not_none(item, "item can't be None")
              data_items.append(self._to_data(item))
          return self._encode_invoke(list_contains_all_codec, values=data_items)
docs: Determines whether this list contains all of the items in specified collection or not.
  
          :param items: (Collection), the specified collection which includes the items to be searched.
          :return: (bool), ``true`` if all of the items in specified collection exist in this list, ``false`` otherwise.