ContextProviderInterface

class \Drupal\Core\Language\ContextProvider\CurrentLanguageContext implements \Drupal\Core\Plugin\Context\ContextProviderInterface uses \Drupal\Core\StringTranslation\StringTranslationTrait
class \Drupal\node\ContextProvider\NodeRouteContext implements \Drupal\Core\Plugin\Context\ContextProviderInterface uses \Drupal\Core\StringTranslation\StringTranslationTrait
class \Drupal\taxonomy\ContextProvider\TermRouteContext implements \Drupal\Core\Plugin\Context\ContextProviderInterface uses \Drupal\Core\StringTranslation\StringTranslationTrait
class \Drupal\user\ContextProvider\CurrentUserContext implements \Drupal\Core\Plugin\Context\ContextProviderInterface uses \Drupal\Core\StringTranslation\StringTranslationTrait