code: @Override
      public void validate(ValidationHelper helper, Context context, String key, APIResponse t) {
  
          if (t != null) {
              String reference = t.getRef();
  
              if (reference != null && !reference.isEmpty()) {
                  ValidatorUtils.referenceValidatorHelper(reference, t, helper, context, key);
                  return;
              }
  
              final String description = t.getDescription();
              ValidatorUtils.validateRequiredField(description, context, "description").ifPresent(helper::addValidationEvent);
          }
      }
docs: {@inheritDoc}