/**
  * Get requested items qtys and return to stock flags
  *
  * @return array
  */
 protected function _getItemData()
 {
     $data = $this->getCreditmemo();
     if (!$data) {
         $data = $this->backendSession->getFormData(true);
     }
     if (isset($data['items'])) {
         $qtys = $data['items'];
     } else {
         $qtys = [];
     }
     return $qtys;
 }
 /**
  * Get requested items qtys and return to stock flags
  *
  * @param RequestInterface $request
  * @return array
  */
 protected function _getItemData(RequestInterface $request)
 {
     $data = $request->getParam('creditmemo');
     if (!$data) {
         $data = $this->backendSession->getFormData(true);
     }
     if (isset($data['items'])) {
         $qtys = $data['items'];
     } else {
         $qtys = array();
     }
     return $qtys;
 }