Expanded class hierarchy of GetterMetadata

class \Symfony\Component\Validator\Mapping\ElementMetadata
- class \Symfony\Component\Validator\Mapping\ClassMetadata implements ClassBasedInterface, MetadataInterface, PropertyMetadataContainerInterface
- class \Symfony\Component\Validator\Mapping\MemberMetadata implements ClassBasedInterface, PropertyMetadataInterface
  - class \Symfony\Component\Validator\Mapping\GetterMetadata
  - class \Symfony\Component\Validator\Mapping\PropertyMetadata
  - class \Symfony\Component\Validator\Tests\Mapping\TestMemberMetadata
- class \Symfony\Component\Validator\Tests\Mapping\TestElementMetadata