docs: public void marshall(CreatePlayerSessionRequest createPlayerSessionRequest, ProtocolMarshaller protocolMarshaller) {
  
          if (createPlayerSessionRequest == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(createPlayerSessionRequest.getGameSessionId(), GAMESESSIONID_BINDING);
              protocolMarshaller.marshall(createPlayerSessionRequest.getPlayerId(), PLAYERID_BINDING);
              protocolMarshaller.marshall(createPlayerSessionRequest.getPlayerData(), PLAYERDATA_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }