commerce_shipping-8.x-2.0-rc2/src/Normalizer/ShipmentItemNormalizer.php

<?php

namespace Drupal\commerce_shipping\Normalizer;

use Drupal\commerce_shipping\Plugin\DataType\ShipmentItem as ShipmentItemDataType;
use Drupal\serialization\Normalizer\NormalizerBase;

class ShipmentItemNormalizer extends NormalizerBase {

  /**
   * {@inheritdoc}
   */
  protected $supportedInterfaceOrClass = ShipmentItemDataType::class;

  /**
   * {@inheritdoc}
   */
  public function normalize($object, $format = NULL, array $context = []): array|bool|string|int|float|null|\ArrayObject {
    assert($object instanceof ShipmentItemDataType);
    return $object->toArray();
  }

  /**
   * {@inheritdoc}
   */
  public function getSupportedTypes(?string $format): array {
    return [
      ShipmentItemDataType::class => TRUE,
    ];
  }

}