/**
* We need to override this method to allow setting 'product'
* option, by default it will be null so we don't get the variant choice
* when creating full cart form.
*
* {@inheritdoc}
*/
public function configureOptions(OptionsResolver $resolver)
{
parent::configureOptions($resolver);
$resolver->setDefined(array('product'))->setAllowedTypes('product', ProductInterface::class);
}
