Files
typeshed/stubs/first/first.pyi
2021-08-08 11:05:21 +02:00

14 lines
441 B
Python

from typing import Any, Callable, Iterable, TypeVar, overload
_T = TypeVar("_T")
_S = TypeVar("_S")
@overload
def first(iterable: Iterable[_T]) -> _T | None: ...
@overload
def first(iterable: Iterable[_T], default: _S) -> _T | _S: ...
@overload
def first(iterable: Iterable[_T], default: _S, key: Callable[[_T], Any] | None) -> _T | _S: ...
@overload
def first(iterable: Iterable[_T], *, key: Callable[[_T], Any] | None) -> _T | None: ...