/**
  * @param \Generated\Shared\Transfer\RefundItemTransfer $itemTransfer
  *
  * @return void
  */
 public function aggregate(RefundItemTransfer $itemTransfer)
 {
     $totalGrossPriceWithDiscount = $itemTransfer->getTotalGrossPrice() - $itemTransfer->getDiscountAmount();
     $itemTransfer->setTotalGrossPriceWithDiscount($totalGrossPriceWithDiscount);
 }