docs: private List<Pair<Subspace, ModifiableDBIDs>> determineClusters(List<CLIQUESubspace> denseSubspaces) {
      List<Pair<Subspace, ModifiableDBIDs>> clusters = new ArrayList<>();
  
      for(CLIQUESubspace subspace : denseSubspaces) {
        List<Pair<Subspace, ModifiableDBIDs>> clustersInSubspace = subspace.determineClusters();
        if(LOG.isDebugging()) {
          LOG.debugFine("Subspace " + subspace + " clusters " + clustersInSubspace.size());
        }
        clusters.addAll(clustersInSubspace);
      }
      return clusters;
    }