I decompiled the Owlet-Europe app to get this info and it works fine with this change for me. Please add this support to the command.
...
base_user_url = 'https://user-field-eu.aylanetworks.com/users/'
base_properties_url = 'https://ads-field-eu.aylanetworks.com/apiv1/'
...
'app_id': "Owlet-Android-EU-rw-id",
'app_secret': "Owlet-Android-EU-OUJNUe5e79pPxvB0tMUaaUif-8o",
I decompiled the Owlet-Europe app to get this info and it works fine with this change for me. Please add this support to the command.