257     def add_argument(self, action):  argument
503     def _format_action(self, action):  argument
551     def _format_action_invocation(self, action):  argument
575     def _metavar_formatter(self, action, default_metavar):  argument
591     def _format_args(self, action, default_metavar):  argument
619     def _expand_help(self, action):  argument
632     def _iter_indented_subactions(self, action):  argument
656     def _get_help_string(self, action):  argument
659     def _get_default_metavar_for_optional(self, action):  argument
662     def _get_default_metavar_for_positional(self, action):  argument
695     def _get_help_string(self, action):  argument
713     def _get_default_metavar_for_optional(self, action):  argument
716     def _get_default_metavar_for_positional(self, action):  argument
1452     def _add_action(self, action):  argument
1473     def _remove_action(self, action):  argument
1579     def _check_conflict(self, action):  argument
1593     def _handle_conflict_error(self, action, conflicting_actions):  argument
1602     def _handle_conflict_resolve(self, action, conflicting_actions):  argument
1641     def _add_action(self, action):  argument
1646     def _remove_action(self, action):  argument
1658     def _add_action(self, action):  argument
1666     def _remove_action(self, action):  argument
1804     def _add_action(self, action):  argument
1917         def take_action(action, argument_strings, option_string=None):  argument
2145     def _match_argument(self, action, arg_strings_pattern):  argument
2286     def _get_nargs_pattern(self, action):  argument
2419     def _get_values(self, action, arg_strings):  argument
2475     def _get_value(self, action, arg_string):  argument
2501     def _check_value(self, action, value):  argument