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

string|null getParent() Returns the name of the parent type.

buildForm(FormBuilderInterface $builder,

buildForm(FormBuilderInterface $builder,

string|null getParent() Returns the name of the parent type.

finishView(FormView $view,

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

string|null getParent() Returns the name of the parent type.

class CheckboxType extends AbstractType

class CountryType extends AbstractType