code: def add_all(self, items):
          
          check_not_none(items, "Value can't be None")
          data_items = []
          for item in items:
              check_not_none(item, "Value can't be None")
              data_items.append(self._to_data(item))
          return self._encode_invoke(list_add_all_codec, value_list=data_items)
docs: Adds all of the items in the specified collection to the end of this list. The order of new elements is
          determined by the specified collection's iterator.
  
          :param items: (Collection), the specified collection which includes the elements to be added to list.
          :return: (bool), ``true`` if this call changed the list, ``false`` otherwise.