Trying to understand zwave services panel : print_node

I’m looking at the services panel for zwave, and can not seem to understand the service data section. If, for example, I want the information for zwave node_id 9, what do I enter into the service data field?

2017-11-15 08:55:10 ERROR (MainThread) [homeassistant.components.websocket_api] WS 1939509776: Message incorrectly formatted: expected dict for dictionary value @ data[‘service_data’]. Got 9
2017-11-15 08:56:16 ERROR (MainThread) [homeassistant.components.websocket_api] WS 1945012528: Message incorrectly formatted: expected dict for dictionary value @ data[‘service_data’]. Got [9]

JSON would look more like the following:

{ "node_id": "9" }

But isn’t the information you want available on the Z-Wave Configuration screen?