string getBlockPrefix() Returns the prefix of the template block name for this type. The
FormConfigBuilderInterface
bool valid() Returns whether the iterator's position is valid.
int count() Unsupported method. Return
seek(int $position) Sets the position of the iterator.
TypeGuess|null guessType(string $class, string
interface ResolvedFormTypeInterface A wrapper for a form type and its extensions.
DataMapperInterface getDataMapper()
string getDataClass() Returns the class of the form data or null if the data is scalar or an
interface FormInterface implements ArrayAccess,
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