How to retrieve VPN remote address using laiarturs-ros-api Python module?

Hello, I am using the python module laiarturs-ros-api to retrieve the remote address of a VPN interface using the command:

r = router.talk(‘/interface/pptp-client/print\n?name=name of vpn’)

print(r)

But it seems that the value returned only contains values from the general tab. How can I retrieve the remote address value?