code: public void addClassifications(String name, String value) {
          classifications.add(new AbstractMap.SimpleEntry<>(name, value));
      }
docs: Adds metadata that will be displayed at the main page of the report. It is useful when there is a few reports are
  generated at the same time but with different parameters/configurations.
  
  @param name  name of the property
  @param value value of the property