docs: public void marshall(BlackoutSlate blackoutSlate, ProtocolMarshaller protocolMarshaller) {
  
          if (blackoutSlate == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(blackoutSlate.getBlackoutSlateImage(), BLACKOUTSLATEIMAGE_BINDING);
              protocolMarshaller.marshall(blackoutSlate.getNetworkEndBlackout(), NETWORKENDBLACKOUT_BINDING);
              protocolMarshaller.marshall(blackoutSlate.getNetworkEndBlackoutImage(), NETWORKENDBLACKOUTIMAGE_BINDING);
              protocolMarshaller.marshall(blackoutSlate.getNetworkId(), NETWORKID_BINDING);
              protocolMarshaller.marshall(blackoutSlate.getState(), STATE_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }