[DHCP client] Send hostname option

Hi all!

I have been struggling with this and I am not been able to solve it. I would like to send dhcp client options with interface eth0 as dhcp client. In ubnt edgeos, I can run this command:

But in Vyos this command does not exists. I did a workaround, but I do not know if it is correct or not:

I saw I can send ipv6 client options in Vyos, but I am using ipv4, so anybody knows if there is a equivalent command in Vyos?