public function determineFormStoreOptions(ModelRelationData $data)
    {
        $options = [];

        switch ($data->type) {

            case RelationType::MORPH_TO:
                // Set special morph options to mark the targetable model classes
                $models = $this->determineMorphModelsForRelationData($data);

                if (count($models)) {
                    $options['models'] = $models;
                }
                break;
        }

        return $options;
    }