docs: public void marshall(UpgradeHistory upgradeHistory, ProtocolMarshaller protocolMarshaller) {
  
          if (upgradeHistory == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(upgradeHistory.getUpgradeName(), UPGRADENAME_BINDING);
              protocolMarshaller.marshall(upgradeHistory.getStartTimestamp(), STARTTIMESTAMP_BINDING);
              protocolMarshaller.marshall(upgradeHistory.getUpgradeStatus(), UPGRADESTATUS_BINDING);
              protocolMarshaller.marshall(upgradeHistory.getStepsList(), STEPSLIST_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }