/**
  * @inheritDoc
  */
 public function convertToProductOption(DataObject $request)
 {
     $options = $request->getOptions();
     if (!empty($options) && is_array($options)) {
         $data = [];
         foreach ($options as $optionId => $optionValue) {
             if (is_array($optionValue)) {
                 $optionValue = implode(',', $optionValue);
             }
             /** @var CustomOption $option */
             $option = $this->customOptionFactory->create();
             $option->setOptionId($optionId)->setOptionValue($optionValue);
             $data[] = $option;
         }
         return ['custom_options' => $data];
     }
     return [];
 }
 /**
  * Update options values
  *
  * @param array $options
  * @return null
  */
 protected function updateOptionsValues(array &$options)
 {
     foreach ($options as $optionId => &$optionValue) {
         /** @var \Magento\Catalog\Model\CustomOptions\CustomOption $option */
         $option = $this->customOptionFactory->create();
         $option->setOptionId($optionId);
         if (is_array($optionValue)) {
             $optionValue = implode(',', $optionValue);
         }
         $option->setOptionValue($optionValue);
         $optionValue = $option;
     }
 }