def setUpModule():
 device_tracker.update_config(KNOWN_DEV_YAML_PATH, 'device_1', device_tracker.Device(None, None, True, 'device_1', 'DEV1', picture='http://example.com/dev1.jpg'))
 device_tracker.update_config(KNOWN_DEV_YAML_PATH, 'device_2', device_tracker.Device(None, None, True, 'device_2', 'DEV2', picture='http://example.com/dev2.jpg'))

def setUpModule ( ) : device_tracker . update_config ( KNOWN_DEV_YAML_PATH , 'device_1' , device_tracker . Device ( None , None , True , 'device_1' , 'DEV1' , picture = 'http://example.com/dev1.jpg' ) ) device_tracker . update_config ( KNOWN_DEV_YAML_PATH , 'device_2' , device_tracker . Device ( None , None , True , 'device_2' , 'DEV2' , picture = 'http://example.com/dev2.jpg' ) )
initialize a home assistant server .