[docs]defalt(function:Callable[[_SecondType],_UpdatedType],)->Kinded[Callable[[KindN[_AltableKind,_FirstType,_SecondType,_ThirdType]],KindN[_AltableKind,_FirstType,_UpdatedType,_ThirdType],]]:""" Lifts function to be wrapped in a container for better composition. In other words, it modifies the function's signature from: ``a -> b`` to: ``Container[a] -> Container[b]`` This is how it should be used: .. code:: python >>> from returns.io import IOFailure, IOSuccess >>> from returns.pointfree import alt >>> def example(argument: int) -> float: ... return argument / 2 >>> assert alt(example)(IOSuccess(1)) == IOSuccess(1) >>> assert alt(example)(IOFailure(4)) == IOFailure(2.0) Note, that this function works for all containers with ``.alt`` method. See :class:`returns.primitives.interfaces.altable.AltableN` for more info. """@kindeddeffactory(container:KindN[_AltableKind,_FirstType,_SecondType,_ThirdType],)->KindN[_AltableKind,_FirstType,_UpdatedType,_ThirdType]:returncontainer.alt(function)returnfactory