nft for bridge.

hi,

inet offload is working fine for me.
++++++++++++++++++++++++
/etc/nftables/inet.nft

table inet x {

     flowtable f {
        hook ingress priority 0
        devices = { eth0, sdp1-0 }
        flags offload;
     }

    chain forward {
        type filter hook forward priority 0; policy accept;
        ct state { established, related } flow add @f
    }
}
++++++++++++++++++
But bridge nft fails. Could you help with correct configuration?  i
have already enabled below config
CONFIG_NF_TABLES_BRIDGE=y
CONFIG_NF_CONNTRACK_BRIDGE=y


/etc/nftables/ibridge-raw.nft
--------------
table bridge x {

     flowtable f {
        hook ingress priority 0
        devices = { br0  }
        flags offload;
     }

    chain forward {
        type filter hook forward priority 0; policy accept;
        ct state { established, related } flow add @f
    }
}
~# nft -f /etc/nftables/ipv4-raw.nft
/etc/nftables/ipv4-raw.nft:7:16-16: Error: Could not process rule: No
such file or directory
     flowtable f {
               ^
/etc/nftables/ipv4-raw.nft:15:43-53: Error: Could not process rule: No
such file or directory
        ct state { established, related } flow add @f
                                          ^^^^^^^^^^^