def _expand_users(device_users, common_users):
 expected_users = deepcopy(common_users)
 expected_users.update(device_users)
 return expected_users

def _expand_users ( device_users , common_users ) : expected_users = deepcopy ( common_users ) expected_users . update ( device_users ) return expected_users
creates a longer list of accepted users on the device .