I had to do the same thing (save+restore) some times ago to get the node document, don’t know really why… It is an internal service so it’s not documented and “should not” be used.
You can try wm.server.packages:packageInfo in order to retrieve all the services in a package.
But allways be aware that these services can be modified/changed/removed between the different “versions” :proud:
That service actually returns an NSNode Java object. You can use a Java service to extract more information from it. Example of service that returns package associated with the node: