1434         return self._add_action(action)
1446     def _add_action(self, action):  member in _ActionsContainer
1508             group_map.get(action, self)._add_action(action)
1635     def _add_action(self, action):  member in _ArgumentGroup
1636         action = super(_ArgumentGroup, self)._add_action(action)
1652     def _add_action(self, action):  member in _MutuallyExclusiveGroup
1656         action = self._container._add_action(action)
1792         self._subparsers._add_action(action)
1797     def _add_action(self, action):  member in ArgumentParser
1799             self._optionals._add_action(action)
1801             self._positionals._add_action(action)