As was discovered by @ValdezFOmar the async D-Bus properties in version 0.11.1 do not type hint properly. This means for example ssid = await access_point.ssid or ssid = await access_point.ssid.get_async() would make the the ssid variable have the type of Any instead of a specific type.

python-sdbus/python-sdbus-networkmanager#63

This actually got accidentally fixed in the development branch because most the classes got reworked. The 0.12.0 version is pretty far away because it will introduce a lot of reworks to internal APIs. (the documented APIs should stay the same)

However, I do consider the type hints a core feature of python-sdbus. There is an option of forking the 0.11.1 and fixing the property type hints. (maybe adding a few more hotfixes?)