private List<ReturnItem> extractValues(PsiDocComment comment) {
        List<ReturnItem> ranges = new ArrayList<>();
        for (PsiElement child : comment.getChildren()) {
          if (child instanceof PsiDocTag && ((PsiDocTag)child).getName().equals("return")) {
            processLine(RETURN_LINE_START, child, Kind.LIKELY_VALUE, ranges);
            processLine(RETURN_LINE_MIDDLE, child, Kind.MAYBE_VALUE, ranges);
            processLine(RETURN_LINE_START_TYPE, child, Kind.MAYBE_TYPE, ranges);
            processLine(RETURN_LINE_START_TYPE_SINGULAR, child, Kind.MAYBE_TYPE_SINGULAR, ranges);
          }
          else if (child instanceof PsiDocToken && ((PsiDocToken)child).getTokenType() == JavaDocTokenType.DOC_COMMENT_DATA) {
            processLine(DESCRIPTION, child, Kind.LIKELY_VALUE, ranges);
          }
        }
        return ranges;
      }
private List<ReturnItem> extractValues(PsiDocComment comment)