255     def add_usage(self, usage, actions, groups, prefix=None):  argument
297     def _format_usage(self, usage, actions, groups, prefix):  argument
846                  default=None,  argument
889                  default=None,  argument
931                  default=None,  argument
965                  default=None,  argument
987                  default=False,  argument
1004                  default=True,  argument
1023                  default=None,  argument
1060                  default=None,  argument
1086                  default=None,  argument
1109                  default=SUPPRESS,  argument
1129                  default=SUPPRESS,  argument
1394     def _registry_get(self, registry_name, value, default=None):  argument
1594     def _pop_action_class(self, kwargs, default=None):  argument
1739                  usage=None,  argument