FormBuilderInterface add(string|int|

ResolvedFormTypeInterface

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

array getPreferredViews() Returns the choice views of the preferred choices as nested array with

ChoiceListInterface

ResolvedFormTypeInterface|null

bool isRequired() Returns whether the form is required to be filled out. If the form has

ChoiceListInterface

interface SubmitButtonTypeInterface implements

mixed getAttribute(string $name, mixed $default = null) Returns the value of the given attribute