code: protected function createConfigurationDefinition()
      {
          return new FixerConfigurationResolver(array_merge(
              parent::createConfigurationDefinition()->getOptions(),
              [
                  (new FixerOptionBuilder('indent_mixed_lines', 'Whether to indent lines that have content before closing parenthesis.'))
                      ->setAllowedTypes(['bool'])
                      ->setDefault(false)
                      ->getOption(),
              ]
          ));
      }
docs: {@inheritdoc}