docs: public void marshall(ListedFlow listedFlow, ProtocolMarshaller protocolMarshaller) {
  
          if (listedFlow == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(listedFlow.getAvailabilityZone(), AVAILABILITYZONE_BINDING);
              protocolMarshaller.marshall(listedFlow.getDescription(), DESCRIPTION_BINDING);
              protocolMarshaller.marshall(listedFlow.getFlowArn(), FLOWARN_BINDING);
              protocolMarshaller.marshall(listedFlow.getName(), NAME_BINDING);
              protocolMarshaller.marshall(listedFlow.getSourceType(), SOURCETYPE_BINDING);
              protocolMarshaller.marshall(listedFlow.getStatus(), STATUS_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }