async def METHOD_NAME(udns_server, multicast_scan):
    udns_server.add_service(service1())
    udns_server.add_service(service2(address=SERVICE_2_IP))
    atvs = await multicast_scan(identifier=SERVICE_2_ID)
    assert len(atvs) == 1
    assert atvs[0].name == SERVICE_2_NAME
    assert atvs[0].address == ip_address(SERVICE_2_IP)