private static List<TextRange> addNextComma(PsiElement e, int cursorOffset) {
    PsiElement nextCommaSibling = e.getNextSibling();
    if (nextCommaSibling != null) {
      ASTNode node = nextCommaSibling.getNode();
      if (node != null) {
        IElementType commaType = node.getElementType();
        if (commaType == PyTokenTypes.COMMA) {
          PsiElement nextSpaceSibling = nextCommaSibling.getNextSibling();
          if (nextSpaceSibling != null) {
            TextRange textRange = e.getTextRange();
            TextRange offsetRange;
            if (nextSpaceSibling instanceof PsiWhiteSpace) {
              offsetRange = new TextRange(textRange.getStartOffset(), textRange.getEndOffset() + 2);
            }
            else {
              offsetRange = new TextRange(textRange.getStartOffset(), textRange.getEndOffset() + 1);
            }
            if (offsetRange.contains(cursorOffset) && offsetRange.getLength() > 1) {
              return Collections.singletonList(offsetRange);
            }
          }
        }
      }
    }
    return Collections.emptyList();
  }
private static List<TextRange> addNextComma(PsiElement e, int cursorOffset)