MarkupInterface

class \Drupal\Component\Render\FormattableMarkup implements \Drupal\Component\Render\MarkupInterface, \Drupal\Component\Render\Countable
class \Drupal\Component\Render\HtmlEscapedText implements \Drupal\Component\Render\MarkupInterface, \Drupal\Component\Render\Countable
class \Drupal\Core\Field\FieldFilteredMarkup implements \Drupal\Component\Render\MarkupInterface, \Drupal\Core\Field\Countable uses \Drupal\Component\Render\MarkupTrait
class \Drupal\Core\GeneratedButton extends \Drupal\Core\GeneratedLink
class \Drupal\Core\GeneratedLink extends \Drupal\Core\Render\BubbleableMetadata implements \Drupal\Component\Render\MarkupInterface, \Drupal\Core\Countable
class \Drupal\Core\GeneratedNoLink extends \Drupal\Core\GeneratedLink
class \Drupal\Core\Render\Markup implements \Drupal\Component\Render\MarkupInterface, \Drupal\Core\Render\Countable uses \Drupal\Component\Render\MarkupTrait
class \Drupal\Core\StringTranslation\PluralTranslatableMarkup extends \Drupal\Core\StringTranslation\TranslatableMarkup
class \Drupal\Core\StringTranslation\TranslatableMarkup extends \Drupal\Component\Render\FormattableMarkup uses \Drupal\Component\Utility\ToStringTrait
class \Drupal\Core\Template\Attribute implements \Drupal\Core\Template\ArrayAccess, \Drupal\Core\Template\IteratorAggregate, \Drupal\Component\Render\MarkupInterface
class \Drupal\big_pipe\Render\BigPipeMarkup implements \Drupal\Component\Render\MarkupInterface, \Drupal\big_pipe\Render\Countable uses \Drupal\Component\Render\MarkupTrait
class \Drupal\filter\Render\FilteredMarkup implements \Drupal\Component\Render\MarkupInterface, \Drupal\filter\Render\Countable uses \Drupal\Component\Render\MarkupTrait
class \Drupal\media\IFrameMarkup implements \Drupal\Component\Render\MarkupInterface uses \Drupal\Component\Render\MarkupTrait
class \Drupal\migrate\Audit\AuditResult implements \Drupal\Component\Render\MarkupInterface, \Drupal\migrate\Audit\Countable
class \Drupal\package_manager\TranslatableStringAdapter extends \Drupal\Core\StringTranslation\TranslatableMarkup implements \PhpTuf\ComposerStager\API\Translation\Value\TranslatableInterface, \PhpTuf\ComposerStager\API\Translation\Value\TranslationParametersInterface
class \Drupal\views\Render\ViewsRenderPipelineMarkup implements \Drupal\Component\Render\MarkupInterface, \Drupal\views\Render\Countable uses \Drupal\Component\Render\MarkupTrait