If any one else is missing Markus’ great AppleTV binding because of tvOS upgrade, there is a workaround!
I was frustrated losing the binding but in my research for a solution I found this:
HABApp
Using HABApp, I can use the pyatv library directly. It is not as integrated as a binding and I haven’t succeeded in getting all “push” functionality in pyatv to work, but my main use is to be able to use my single remote for “everything” and for that it works great!
I hope this helps someone!