How to add an additional temporary IP to the connection that currently provides internet via nmcli?

I need to add a specific IP to the interface that actively provides the internet connection, like so:

network_dev=$(nmcli --get-values DEVICE connection show --active | grep w)
sudo ip a add 192.168.250.9/24 dev $network_dev

This address assignment should be temporary and should not be applied between nmcli c up/down id "My connection" Is there a way to perform this operation directly through nmcli?