Defines the Menu configuration entity class. Plugin annotation

Builds a form to delete a date format. Hierarchy class \Drupal\Core\Form\

Provides an interface defining a menu entity. Hierarchy interface \Drupal\Core\Entity\

public static CsrfTokenController::create(ContainerInterface

The module handler service. Type:

public MenuInterface::isLocked() Determines

public DateFormatFormBase::save(array $form, FormStateInterface

Requirement severity -- Warning condition; proceed but flag warning. File core/modules/system/src/SystemManager

Provides an interface defining a action entity. Hierarchy interface \Drupal\Core\Entity\

public FileSystemForm::getFormId()