docs: public void marshall(DescribeGameSessionsRequest describeGameSessionsRequest, ProtocolMarshaller protocolMarshaller) {
  
          if (describeGameSessionsRequest == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(describeGameSessionsRequest.getFleetId(), FLEETID_BINDING);
              protocolMarshaller.marshall(describeGameSessionsRequest.getGameSessionId(), GAMESESSIONID_BINDING);
              protocolMarshaller.marshall(describeGameSessionsRequest.getAliasId(), ALIASID_BINDING);
              protocolMarshaller.marshall(describeGameSessionsRequest.getStatusFilter(), STATUSFILTER_BINDING);
              protocolMarshaller.marshall(describeGameSessionsRequest.getLimit(), LIMIT_BINDING);
              protocolMarshaller.marshall(describeGameSessionsRequest.getNextToken(), NEXTTOKEN_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }