Creating a packer image with multiple nics

I am trying to create a centos 7.9 image with packer qemu.
This image is to be installed with a nvidia driver that can be installed only on computes with multiple NICs. Currently I don’t see an option that I use to specify that the qemu VM that packer boots has to have multiple NICs.
Is it even possible ? Please share any thoughts/suggestions on how to achive this.