code: public void configure(String version, OnOfflineTilesConfiguredCallback callback) {
      offlineNavigator.configure(new File(tilePath, version).getAbsolutePath(), callback);
    }
docs: Configures the navigator for getting offline routes.
  
  @param version  version of offline tiles to use
  @param callback a callback that will be fired when the offline data is configured and
  {@link MapboxOfflineRouter#findRoute(OfflineRoute, OnOfflineRouteFoundCallback)}
  can be called safely