The below Python 3.12 code with ruff==0.5.2:

import asyncio

async def foo(timeout: float | None = 30.0) -> None:
    async with asyncio.timeout(timeout):
        await asyncio.sleep(1.0)

Will throw an ASYNC109 error on the third line:

a.py:3:15: ASYNC109 Async function definition with a `timeout` parameter

I think this is a false positive, as later on the timeout is directly used in an asyncio.timeout.

Is there some way Ruff can check for how the timeout is used before throwing ASYNC109?