code: public void process( List<List<SquareNode>> clusters ) {
  		grids.reset();
  		for (int i = 0; i < clusters.size(); i++) {
  			if( checkPreconditions(clusters.get(i)))
  				processCluster(clusters.get(i));
  		}
  	}
docs: Converts all the found clusters into grids, if they are valid.
  
  @param clusters List of clusters