FormConfigBuilderInterface

FormInterface remove(string $name)

bool isSynchronized() Unsupported method.

FormConfigBuilderInterface

key() {@inheritdoc}

EventDispatcherInterface

string getName() Returns the name by which the button is identified in forms.

string getName() Returns the name of the form used as HTTP parameter.

bool isValid() Unsupported method. Return

setOrigin(FormInterface $origin)