DataMapperInterface getDataMapper()

ValueGuess|null guessPattern(string $class,

FormInterface getForm()

bool hasTypeExtensions(string $name) Returns whether this extension provides type extensions

configureOptions(OptionsResolver

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

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

bool hasTypeExtensions(string $name) Returns whether this extension provides type extensions

int count() Unsupported method. Return

int key() Returns the current position of the iterator.