code: func resourceVSphereComputeClusterHostGroupObjects(
  	d *schema.ResourceData,
  	meta interface{},
  ) (*object.ClusterComputeResource, string, error) {
  	if d.Id() != "" {
  		return resourceVSphereComputeClusterHostGroupObjectsFromID(d, meta)
  	}
  	return resourceVSphereComputeClusterHostGroupObjectsFromAttributes(d, meta)
  }
docs: // resourceVSphereComputeClusterHostGroupObjects handles the fetching of the
  // cluster and group name depending on what attributes are available:
  // * If the resource ID is available, the data is derived from the ID.
  // * If not, it's derived from the compute_cluster_id and name attributes.