I don't have one of those google assistant thingies. One of the reasons is that my Android TV boxes are supposed to have google assistant in them. And they kind of work for that. Except that I cannot really make routines in which the "mibox" or "chromecast with google TV" play sound. Because for some reason they don't count as "audio devices" even though they certainly have audio in them. Is there a way to let google assistant know that my TV is (shockingly) capable of playing audio?