MediaMappingsConstraint.php

<?php

namespace Drupal\media\Plugin\Validation\Constraint;

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

/**
 * Validates media mappings.
 *
 * @internal
 */
class MediaMappingsConstraint extends SymfonyConstraint {
  public function __construct(mixed $options = NULL, public string $invalidMappingMessage = 'It is not possible to map the source field @source_field_name of a media type.', ?array $groups = NULL, mixed $payload = NULL) {
    parent::__construct($options, $groups, $payload);
  }

}