1 from typing import Any, Callable, Iterable, TypeVar, overload
7 def first(iterable: Iterable[_T]) -> _T | None: ...
9 def first(iterable: Iterable[_T], default: _S) -> _T | _S: ...
11 def first(iterable: Iterable[_T], default: _S, key: Callable[[_T], Any] | None) -> _T | _S: ...
13 def first(iterable: Iterable[_T], *, key: Callable[[_T], Any] | None) -> _T | None: ...