94       name: Text,
95       default: Union[Optional[_T], Text],  argument
96       help_string: Optional[Text],
97       short_name: Optional[Text] = None,
180   def parse(self, argument: Union[Text, Optional[_T]]) -> None:
193   def _parse(self, argument: Union[Text, _T]) -> Optional[_T]:
234   def _set_default(self, value: Union[Optional[_T], Text]) -> None:  argument
247   def _parse_from_default(self, value: Union[Text, _T]) -> Optional[_T]:
350       name: Text,
351       default: Union[Optional[bool], Text],  argument
352       help: Optional[Text],  # pylint: disable=redefined-builtin
353       short_name: Optional[Text] = None,
367       name: Text,
368       default: Optional[Text],
369       help: Optional[Text],  # pylint: disable=redefined-builtin
370       enum_values: Iterable[Text],
371       short_name: Optional[Text] = None,
399       name: Text,
400       default: Union[Optional[_ET], Text],  argument
401       help: Optional[Text],  # pylint: disable=redefined-builtin
403       short_name: Optional[Text] = None,
448   def parse(self, arguments: Union[Text, _T, Iterable[_T]]):  # pylint: disable=arguments-renamed
463 …def _parse(self, arguments: Union[Text, Optional[Iterable[_T]]]) -> List[_T]:  # pylint: disable=a…
516       default: Union[None, Iterable[_ET], _ET, Iterable[Text], Text],