code: protected function createConfigurationDefinition()
      {
          return new FixerConfigurationResolver([
              (new FixerOptionBuilder('types', 'A map of types to fix.'))
                  ->setAllowedValues([new AllowedValueSubset(array_keys(self::$types))])
                  ->setDefault(['boolean', 'double', 'integer', 'real', 'str']) // TODO 3.0 add "callback"
                  ->getOption(),
          ]);
      }
docs: {@inheritdoc}