Terraform genesyscloud_routing_queue skills block validation error

Trying to define a queue with specific skills in the CX as Code provider. The plan fails with:

Error: Invalid attribute
on main.tf line 12, in resource "genesyscloud_routing_queue" "test":
 skills {
 name = "billing"
 }
A "skills" block is not expected here.

Docs show skills as a list of strings in the API, but the provider seems to expect a different structure. How do I map the skill names correctly in the HCL?