def get_directory_list_doc(self, configs):
if not isinstance(configs, (tuple, list)):<EOL><INDENT>configs = [configs]<EOL><DEDENT>util.check_list_type(configs, dict, '<STR_LIT>', allow_none=False)<EOL>return self.__directory_list_descriptor(configs)<EOL>
JSON dict description of a protorpc.remote.Service in list format.

        Args:
          configs: Either a single dict or a list of dicts containing the service
            configurations to list.

        Returns:
          dict, The directory list document as a JSON dict.