Advertising a non-existent route to BGP in PAN-OS

Normally if you want to advertise a non existent route in the Cisco world, you'd need to create a null route to make that happen. I stumbled across the following post though when I was trying to suss out how to do the same in PAN-OS. In my case I wanted to advertise a GlobalProtect IP pool prefix across an AWS VPN using BGP.