code: private static FastRandomTree buildRandomTree(FastRandomForest motherForest, TreeModel treeModel) {
          return buildRandomTreeNode(motherForest, treeModel.getNode());
      }
docs: Builds a new {@link weka.classifiers.trees.RandomTree Weka RandomTree} from the given {@link org.dmg.pmml.TreeModel PMML TreeModel}.
  
  @param motherForest The {@link FastRandomForest} which is the mother of the tree to build..
  @param treeModel    The {@link org.dmg.pmml.TreeModel PMML TreeModel} which is to be converted to a {@link weka.classifiers.trees.RandomTree Weka RandomTree}.
  @return The same {@code root} instance.