public function getConfigurableOptions()
{
$resolver = new OptionsResolver();
$resolver->setDefaults(['working_directory' => null, 'script' => null, 'triggered_by' => ['php', 'phtml']]);
$resolver->addAllowedTypes('working_directory', ['null', 'string']);
$resolver->addAllowedTypes('script', ['string']);
$resolver->addAllowedTypes('triggered_by', ['array']);
return $resolver;
}