SerializedConstraint.php

<?php

namespace Drupal\Core\Validation\Plugin\Validation\Constraint;

use Drupal\Core\StringTranslation\TranslatableMarkup;
use Drupal\Core\Validation\Attribute\Constraint;
use Symfony\Component\Validator\Constraint as SymfonyConstraint;

/**
 * Checks for valid serialized data.
 */
class SerializedConstraint extends SymfonyConstraint {
  public function __construct(mixed $options = NULL, public string $message = 'This value should be a serialized object.', public string $wrongTypeMessage = 'This value should be a string, "{type}" given.', ?array $groups = NULL, mixed $payload = NULL) {
    parent::__construct($options, $groups, $payload);
  }

}