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- <?php
- namespace Drupal\Core\TypedData;
- /**
- * Interface for typed data references.
- *
- * @see \Drupal\Core\TypedData\DataReferenceDefinitionInterface
- */
- interface DataReferenceInterface {
- /**
- * Gets the referenced data.
- *
- * @return \Drupal\Core\TypedData\TypedDataInterface|null
- * The referenced typed data object, or NULL if the reference is unset.
- */
- public function getTarget();
- /**
- * Gets the identifier of the referenced data.
- *
- * @return int|string|null
- * The identifier of the referenced data, or NULL if the reference is unset.
- */
- public function getTargetIdentifier();
- }
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