code: protected function createConfigurationDefinition()
      {
          return new FixerConfigurationResolverRootless('assertions', [
              (new FixerOptionBuilder('assertions', 'List of assertion methods to fix.'))
                  ->setAllowedTypes(['array'])
                  ->setAllowedValues([new AllowedValueSubset(array_keys(self::$assertionMap))])
                  ->setDefault([
                      'assertAttributeEquals',
                      'assertAttributeNotEquals',
                      'assertEquals',
                      'assertNotEquals',
                  ])
                  ->getOption(),
          ], $this->getName());
      }
docs: {@inheritdoc}