code: public function getRefunds($tid)
      {
          $getTransactionService = new GetTransactionService($this->store, null, $this->logger);
          $getTransactionService->platform($this->platform, $this->platformVersion);
          $getTransactionService->setTid($tid);
          $getTransactionService->setRefund(true);
  
          return $getTransactionService->execute();
      }
docs: @param $tid
  
  @return Transaction