string getBlockPrefix() Returns the prefix of the template block name for this type. The

preBind(FormEvent $event)

offsetUnset($key) {@inheritdoc} Parameters

static int|string toArrayKey(mixed $choice) Casts the given choice to an array key

bool getAutoInitialize() Unsupported method.

int|bool getResourceHierarchyLevel(FormView $view, array $blockNameHierarchy

static array getSubscribedEvents() Returns an array of event names this subscriber

FormFactoryInterface getFormFactory()

string getBlockPrefix() Returns the prefix of the template block name for this type. The

key() {@inheritdoc}