bool offsetExists(string $name) Returns whether a child with the given name exists (implements

ChoiceListInterface

FormInterface createNamed(string|int $name, string

class FixRadioInputListener implements

ResolvedFormTypeInterface

bool isSynchronized() Returns whether the data in the different formats is synchronized.

configureOptions(OptionsResolver

bool isCsrfTokenValid(string $intention, string $token) Validates a CSRF token.

bool getErrorBubbling() Unsupported method.

FormFactoryBuilderInterface