bool getMapped() Unsupported method. Return

ChoiceListView createView(

FormTypeInterface getType(string $name)

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

class ChoiceGroupView implements IteratorAggregate

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

interface DataTransformerInterface Transforms a value between different representations.

class BooleanToStringTransformer implements

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

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