UuidReferenceInterface.php

<?php

namespace Drupal\serialization\EntityResolver;

use Symfony\Component\Serializer\Normalizer\NormalizerInterface;

/**
 * Interface for extracting UUID from entity reference data when denormalizing.
 */
interface UuidReferenceInterface extends NormalizerInterface {
    
    /**
     * Get the uuid from the data array.
     *
     * @param array $data
     *   The data, as was passed into the Normalizer.
     *
     * @return string
     *   A UUID.
     */
    public function getUuid($data);

}