Expanded class hierarchy of Data in JSON:API 8.2
- class \Drupal\jsonapi\JsonApiResource\Data implements \Drupal\jsonapi\JsonApiResource\IteratorAggregate, \Drupal\jsonapi\JsonApiResource\Countable
- class \Drupal\jsonapi\JsonApiResource\RelationshipData
- class \Drupal\jsonapi\JsonApiResource\ResourceObjectData