288     def add_argument(self, action):  argument
511     def _format_action(self, action):  argument
557     def _format_action_invocation(self, action):  argument
580     def _metavar_formatter(self, action, default_metavar):  argument
597     def _format_args(self, action, default_metavar):  argument
616     def _expand_help(self, action):  argument
629     def _iter_indented_subactions(self, action):  argument
650     def _get_help_string(self, action):  argument
683     def _get_help_string(self, action):  argument
1305     def _add_action(self, action):  argument
1326     def _remove_action(self, action):  argument
1432     def _check_conflict(self, action):  argument
1446     def _handle_conflict_error(self, action, conflicting_actions):  argument
1453     def _handle_conflict_resolve(self, action, conflicting_actions):  argument
1489     def _add_action(self, action):  argument
1494     def _remove_action(self, action):  argument
1505     def _add_action(self, action):  argument
1513     def _remove_action(self, action):  argument
1673     def _add_action(self, action):  argument
1774         def take_action(action, argument_strings, option_string=None):  argument
1995     def _match_argument(self, action, arg_strings_pattern):  argument
2133     def _get_nargs_pattern(self, action):  argument
2177     def _get_values(self, action, arg_strings):  argument
2229     def _get_value(self, action, arg_string):  argument
2254     def _check_value(self, action, value):  argument