a way to denote that a decorator uses it's function

[KotlinIsland]

def register[Fn: Callable[[], None]](fn: Fn) -> Fn:
    register._fn = fn

@register
def _foo():  # unused
    print("hi")

register._fn()

when i have a 'private' function that is decorated with with some decorator that performs some action, either in place or saves it for later, it will get crowdstriked (n.b. we now call false positives "crowdstrikes") with reportUnusedFunction

can an Annotated be introduced:

from basedtyping import Used

def register[Fn: Callable[[], None]](fn: Annotated[Fn, Used]) -> Fn:
    register._fn = fn

[KotlinIsland]

while we are there we can add a Calls, which means that the function will be called in place