code: func UUIDsForManagedObjectReferences(client *govmomi.Client, refs []types.ManagedObjectReference) (MOIDForUUIDResults, error) {
  	var moids []string
  	for _, ref := range refs {
  		moids = append(moids, ref.Value)
  	}
  	return UUIDsForMOIDs(client, moids)
  }
docs: // UUIDsForManagedObjectReferences returns a MOIDForUUIDResults for a list of
  // ManagedObjectReferences. If one cannot be found, an error is returned. There
  // are no partial results returned.