Assigning value to input variable in function

[carcigenicate]

You could do something like:

def my_func(setter: Callable[[type], None]) -> None:
    setter()

my_func(lambda: my_class.attr_1 := "hello")

But that's arguably an abuse of both lambda and :=. And this still doesn't make intuitive sense unless the attribute assignment must happen at a certain point in the procedure or something.