code: func resourceVSphereDatastoreClusterReadTags(d *schema.ResourceData, meta interface{}, pod *object.StoragePod) error {
  	if tagsClient, _ := meta.(*VSphereClient).TagsClient(); tagsClient != nil {
  		log.Printf("[DEBUG] %s: Reading tags", resourceVSphereDatastoreClusterIDString(d))
  		if err := readTagsForResource(tagsClient, pod, d); err != nil {
  			return err
  		}
  	} else {
  		log.Printf("[DEBUG] %s: Tags unsupported on this connection, skipping tag read", resourceVSphereDatastoreClusterIDString(d))
  	}
  	return nil
  }
docs: // resourceVSphereDatastoreClusterReadTags reads the tags for
  // vsphere_datastore_cluster.