def handle_AVT_GetPositionInfo(self, service, action, args):
     return response_with_action(action)
 def handle_AVT_GetTransportInfo(self, service, action, args):
     return response_with_action(action)
 def handle_RCT_GetVolume(self, service, action, args):
     return response_with_action(action)
 def handle_CNM_GetProtocolInfo(self, sevice, action, args):
     return response_with_action(action)