115     def validate_optional_bool(v: Any) -> bool:
139         default: Any,
140         parse: Callable[[str], Any],  argument
141         validate: Optional[Callable[[Any], bool]] = None,
213         default: Any,
214         parse: Callable[[str], Any],  argument
215         validate: Optional[Callable[[Any], bool]] = None,
226         values: Union[AbstractConfig, Dict[Union[Option, str], Any]] = {},  argument
256         value: Any,
297         self, option_or_name: Union[Option, str], default: Any = _USE_GLOBAL_DEFAULT
334     def __setitem__(self, option_or_name: Union[Option, str], value: Any) -> None: