Sandbox_config for google_container_cluster node config comes out as "unsupported"

Terraform
1

I posted the link to my main.tf below, but line 32-36 is giving me an error. It comes out as unsupported which isn’t true as it’s present in the registry:

node_config {

  • node_version = “1.12.7-gke.17”*
  • sandbox_config {*
  •  sandbox_type = "gvisor"*

  • }*
  • }*
  • }*

https://play.sentinelproject.io/p/N_n16NCHaZM