netplan which is the name of the command, instead however what i should have installed was netplan.io in the Ubuntu repo's at least.
Inside the /etc/netplan there should be at least one .yaml file if not type netplan generate, which should generate the file needed, if not you can use my template and just place in the folder, and of cause change the settings to meet your needs. netplan config template once your done simply type netplan apply and that should be it.
If however you don't have internet access on your machine and therefore can't install the right package, turn to the Ubuntu Documumentation to set up a temporary config. Ubuntu Docs
curl -LO https://handskemager.xyz/tutorials/set-static-ip-ubuntu/50-cloud-onit.yaml(or wget instead of curl) edit the file accordingly, run "netplan apply", reboot and your done