unsupported resource type: projects/datasets while creating gcp secret roleset with bigquery binding

[halil-burak]

When I try to create a Vault GCP Secret Engine Roleset on a BigQuery Dataset, it throws "unsupported resource type: projects/datasets" error. I'm stuck on this weird error. What is the root cause?
I can see that in the below page, bigquery datasets can be added to a roleset's binding with the full resource name, but it did not work.
https://www.vaultproject.io/docs/secrets/gcp#roleset-bindings

resource "vault_gcp_secret_roleset" "dataset_access_key_test" {
  backend     = vault_gcp_secret_backend.gcp.path
  roleset     = var.roleset_name
  secret_type = "service_account_key"
  project     = var.project_id
  binding {
    # Here I've tried both the self_link attribute of the dataset and the full resource name like below. Neither of them worked.
    resource = "//bigquery.googleapis.com/projects/${var.project_id}/datasets/${var.dataset_id}"
    roles    = ["roles/bigquery.dataViewer"]
  }
}

Command output below:
vault_gcp_secret_roleset.<roleset_name>: Creating...

Error: Error writing GCP Secrets backend roleset "gcp/roleset/<roleset_name>": Error making API request.

URL: PUT https:///v1/gcp/roleset/<roleset_name>
Code: 400. Errors:

• 2 errors occurred:
  • errors from both primary and secondary; primary error was invalid resource "//bigquery.googleapis.com/projects/<project_id>/datasets/<dataset_id>": unsupported resource type: projects/datasets; secondary errors follow
  • invalid resource "//bigquery.googleapis.com/projects/<project_id>/datasets/<dataset_id>": unsupported resource type: projects/datasets