code: public void marshall(MatchmakingConfiguration matchmakingConfiguration, ProtocolMarshaller protocolMarshaller) {
  
          if (matchmakingConfiguration == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(matchmakingConfiguration.getName(), NAME_BINDING);
              protocolMarshaller.marshall(matchmakingConfiguration.getDescription(), DESCRIPTION_BINDING);
              protocolMarshaller.marshall(matchmakingConfiguration.getGameSessionQueueArns(), GAMESESSIONQUEUEARNS_BINDING);
              protocolMarshaller.marshall(matchmakingConfiguration.getRequestTimeoutSeconds(), REQUESTTIMEOUTSECONDS_BINDING);
              protocolMarshaller.marshall(matchmakingConfiguration.getAcceptanceTimeoutSeconds(), ACCEPTANCETIMEOUTSECONDS_BINDING);
              protocolMarshaller.marshall(matchmakingConfiguration.getAcceptanceRequired(), ACCEPTANCEREQUIRED_BINDING);
              protocolMarshaller.marshall(matchmakingConfiguration.getRuleSetName(), RULESETNAME_BINDING);
              protocolMarshaller.marshall(matchmakingConfiguration.getNotificationTarget(), NOTIFICATIONTARGET_BINDING);
              protocolMarshaller.marshall(matchmakingConfiguration.getAdditionalPlayerCount(), ADDITIONALPLAYERCOUNT_BINDING);
              protocolMarshaller.marshall(matchmakingConfiguration.getCustomEventData(), CUSTOMEVENTDATA_BINDING);
              protocolMarshaller.marshall(matchmakingConfiguration.getCreationTime(), CREATIONTIME_BINDING);
              protocolMarshaller.marshall(matchmakingConfiguration.getGameProperties(), GAMEPROPERTIES_BINDING);
              protocolMarshaller.marshall(matchmakingConfiguration.getGameSessionData(), GAMESESSIONDATA_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }
docs: Marshall the given parameter object.