Defining skills within a Genesys Cloud queue using CX as Code Terraform

We are attempting to provision a queue with specific skills using the genesyscloud_routing_queue resource. The documentation suggests defining skills via the routing_skills block, but we are encountering a validation error during terraform plan. Here is the current configuration:

resource "genesyscloud_routing_queue" "support_queue" {
 name = "Support Queue"
 routing_skill {
 id = "skill-123"
 }
}

The plan fails with InvalidBlockDefinition. We have verified the skill ID exists in the platform. Is the block structure incorrect, or do we need to use a different attribute for skill association in the current provider version?