model/src/main/java/jetbrains/jetpad/model/transform/Transformers.java [1343:1355]:
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    return new BaseTransformer<ObservableCollection<SourceT>, ObservableCollection<TargetT>>() {
      @Override
      public Transformation<ObservableCollection<SourceT>, ObservableCollection<TargetT>> transform(
          ObservableCollection<SourceT> from) {
        return transform(from, new ObservableHashSet<TargetT>());
      }

      @Override
      public Transformation<ObservableCollection<SourceT>, ObservableCollection<TargetT>> transform(
          ObservableCollection<SourceT> from, final ObservableCollection<TargetT> to) {
        CollectionListener<SourceT> fromListener = new CollectionAdapter<SourceT>() {
          @Override
          public void onItemAdded(CollectionItemEvent<? extends SourceT> event) {
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -



model/src/main/java/jetbrains/jetpad/model/transform/Transformers.java [1518:1530]:
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    return new BaseTransformer<ObservableCollection<SourceT>, ObservableCollection<TargetT>>() {
      @Override
      public Transformation<ObservableCollection<SourceT>, ObservableCollection<TargetT>> transform(
          ObservableCollection<SourceT> from) {
        return transform(from, new ObservableHashSet<TargetT>());
      }

      @Override
      public Transformation<ObservableCollection<SourceT>, ObservableCollection<TargetT>> transform(
          ObservableCollection<SourceT> from, final ObservableCollection<TargetT> to) {
        CollectionListener<SourceT> fromListener = new CollectionAdapter<SourceT>() {
          @Override
          public void onItemAdded(CollectionItemEvent<? extends SourceT> event) {
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -