Hm... what I want to have happen is: folks write "values", and they don't touch "safe_state_attrs" at all. When sending the updated node state, I want to send the "safe_state_attrs".

I think I misunderstood what the role of `state_attrs` is. `state_attrs` list what commands are available for the resource? I think I know what to try instead, if that's the case.