Trying to create a GCP load balancer with multiple front end entries

I’ve been trying a variety of Terraform scripts I’ve discovered online to create a GCP load balancer with four front-ends, as opposed to just one. So far, I’ve only found scripts which seem to create a single load-balancer with a single front-end, but I’d rather not have to create the load balancer and edit it manually, adding a front-end port and IP.

The picture shows what I’m trying to get to. Does anyone know how I should structure my Terraform script to produce this? Or even whether it’s possible?