public function configureOptions(FieldOptionsResolver $options)
 {
     $options->setDefault('class', null);
     $options->setStorageMapper(function ($options, $shared) {
         return ['class' => $shared['class']];
     });
 }
 public function configureOptions(FieldOptionsResolver $options)
 {
     $options->setDefault('repository', 'default');
     $options->setDefault('path', '/');
     $options->setViewMapper(function (array $options, array $shared) {
         return ['repository' => $shared['repository'], 'path' => $shared['path']];
     });
     $options->setStorageMapper(function (array $options) {
         return ['class' => Image::class];
     });
 }