docs: private static String tagify(Object thisObj, String tag,
                                   String attribute, Object[] args)
      {
          String str = ScriptRuntime.toString(thisObj);
          StringBuilder result = new StringBuilder();
          result.append('<');
          result.append(tag);
          if (attribute != null) {
              result.append(' ');
              result.append(attribute);
              result.append("=\"");
              result.append(ScriptRuntime.toString(args, 0));
              result.append('"');
          }
          result.append('>');
          result.append(str);
          result.append("</");
          result.append(tag);
          result.append('>');
          return result.toString();
      }