WTH expose a zigbee device cluster attribute as an entity

This is just one example, but I have a zigbee device (alarm in this case) that has some attributes controled by clusters (volume, melody, etc.). It would be very useful if I could control these attributes with an entity so I could change them in automation!

As a workaround and for related development discussion see → https://github.com/zigpy/zigpy/discussions/934