code: public IStorer createStorer(SessionManagerConfig smc, IStore store) {
          IStorer storer = null;
          if (smc.getEnableTimeBasedWrite()) {
              storer = new TBWSessionStorer(store, 10); // 10 seconds is fixed - not configurable
          } else if (smc.getEnableManualWrite()) {
              storer = new ManualSessionStorer();
          } else {
              storer = new EOSSessionStorer();
          }
          return storer;
      }
docs: /*
  create the storer