@Override
    public String generateIntermediate(CommentTracker ct) {
      PsiType addedType = getAddedElementType(myAddCall);
      PsiExpression mapping = getMapping();
      if (addedType == null) addedType = mapping.getType();
      return StreamRefactoringUtil.generateMapOperation(myElement, addedType, ct.markUnchanged(mapping));
    }
@Override
    public String generateIntermediate(CommentTracker ct)