UuidConstraint.php

<?php

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

use Drupal\Core\StringTranslation\TranslatableMarkup;
use Drupal\Core\Validation\Attribute\Constraint;
use Symfony\Component\Validator\Constraints\Uuid;
use Symfony\Component\Validator\Constraints\UuidValidator;

/**
 * Validates a UUID.
 */
class UuidConstraint extends Uuid {
    
    /**
     * {@inheritdoc}
     *
     * @return string
     *   The name of the class that validates this constraint.
     *
     * @todo Add method return type declaration.
     * @see https://www.drupal.org/project/drupal/issues/3425150
     */
    public function validatedBy() {
        return UuidValidator::class;
    }

}