docs: private boolean checkForVariables(List<Map<String, String>> values) {
      if (values == null || values.isEmpty()) {
        return false;
      } else {
        for (Map<String, String> list : values) {
          if (list.containsKey("type") && list.get("type")
              .equals(MtasParserMapping.PARSER_TYPE_VARIABLE)) {
            return true;
          }
        }
      }
      return false;
    }