namespace Drupal\Core\Plugin;
use Drupal\Component\Plugin\PluginBase as ComponentPluginBase;
+use Drupal\Core\Messenger\MessengerTrait;
use Drupal\Core\StringTranslation\StringTranslationTrait;
use Drupal\Core\DependencyInjection\DependencySerializationTrait;
abstract class PluginBase extends ComponentPluginBase {
use StringTranslationTrait;
use DependencySerializationTrait;
+ use MessengerTrait;
}