code: @Override
    public ORecordIteratorClusters<REC> last() {
      currentClusterIdx = clusterIds.length - 1;
      current.clusterPosition = liveUpdated ? database.countClusterElements(clusterIds[currentClusterIdx]) : lastClusterPosition + 1;
      return this;
    }
docs: Move the iterator to the end of the range. If no range was specified move to the last record of the cluster.
  
  @return The object itself