TranslatableStringAdapter

class \Drupal\Component\Render\FormattableMarkup implements \Drupal\Component\Render\MarkupInterface, \Drupal\Component\Render\Countable
- class \Drupal\Core\StringTranslation\TranslatableMarkup extends \Drupal\Component\Render\FormattableMarkup uses \Drupal\Component\Utility\ToStringTrait
  - class \Drupal\Core\StringTranslation\PluralTranslatableMarkup extends \Drupal\Core\StringTranslation\TranslatableMarkup
  - class \Drupal\package_manager\TranslatableStringAdapter extends \Drupal\Core\StringTranslation\TranslatableMarkup implements \PhpTuf\ComposerStager\API\Translation\Value\TranslatableInterface, \PhpTuf\ComposerStager\API\Translation\Value\TranslationParametersInterface