rpcs:
+---x get-netconf-client-capabilities
+---w input
| +---w session-id? uint32
+--ro output
+--ro session*
+--ro session-id? uint32
+--ro user-name? string
+--ro vendor? string
+--ro product? string
+--ro version? string
+--ro identity? string
+--ro af-type? enumeration
+--ro host-ip-v6? inet:ipv6-address
+--ro host-ip? inet:ipv4-address
+--ro time? ietfyang:date-and-time