Want to configure an IPv4 VRF? Here's a sample app to do just that:
nc-create-xr-infra-rsi-cfg-20-ydk.py - IPv4 VRF
Want to encode an IPv4 VRF configuration in XML? Here's a sample app to do just that:
cd-encode-xr-infra-rsi-cfg-20-ydk.py - IPv4 VRF
Give them a try!