ContextualLinkInterface

class \Drupal\Core\Menu\ContextualLinkDefault extends \Drupal\Core\Menu\ContextualLinkInterface implements \Drupal\Component\Plugin\PluginBase
class \Drupal\config_translation\Plugin\Menu\ContextualLink\ConfigTranslationContextualLink uses \Drupal\Core\StringTranslation\StringTranslationTrait implements \Drupal\Core\Menu\ContextualLinkDefault
class \Drupal\menu_test\Plugin\Menu\ContextualLink\TestContextualLink implements \Drupal\Core\Menu\ContextualLinkDefault

Buggy or inaccurate documentation? Please file an issue. Need support? Need help programming? Connect with the Drupal community.