iptables-translate -A OUTPUT -j CLASSIFY --set-class 0:0
nft add rule ip filter OUTPUT counter meta priority set none

iptables-translate -A OUTPUT -j CLASSIFY --set-class ffff:ffff
nft add rule ip filter OUTPUT counter meta priority set root

iptables-translate -A OUTPUT -j CLASSIFY --set-class 1:234
nft add rule ip filter OUTPUT counter meta priority set 1:234