When I configure NAT on an interface:

PUT /restconf/config/ietf-interfaces:interfaces/interface/GigabitEthernet0%2F8%2F0/interface-nat:nat/inbound
{"inbound": {}}

Then NAT is visible in interface oper data:
"interface-nat:nat":{"inbound":{}}

but not it VAT dump:
snat_interface_dump
no response

If I configure the same thing through VAT:
snat_interface_add_del_feature sw_if_index 1 in

then VAT dump does show the interface:
snat_interface_dump
sw_if_index 1 in

Shouldn't these commands be equivalent?