Button|null getClickedButton()

mixed transform(mixed $data) Transforms a value from the original representation to a transformed

offsetUnset(mixed $offset) Unsupported method. This method should not be invoked.

FormInterface[] all()

FormInterface[] all()

bool isRoot() Returns whether the field is the root of the form tree.

string generateCsrfToken(string $intention) Generates a CSRF token for a page of your application

array getChoices() Returns the list of choices.

FormConfigBuilderInterface

FormConfigBuilderInterface