anchor.diff:      // [END paginate_data_set_cursor_based_on_multiple_fields]
     }
   
  +  void accessDataOffline_configure() {
  +    // [START access_data_offline_configure_offline_persistence]
  +    // Apple and Android
  +    db.settings = const Settings(persistenceEnabled: true);
  +
  +    // Web
  +    await db.enablePersistence(const PersistenceSettings(synchronizeTabs: true));
  +    // [END access_data_offline_configure_offline_persistence]
  +  }
  +
  +  void accessDataOffline_configureCache() {
  +    // [START access_data_offline_configure_cache_size]
  +    db.settings = const Settings(
  +      persistenceEnabled: true,
  +      cacheSizeBytes: Settings.CACHE_SIZE_UNLIMITED,
  +    );
  +    // [END access_data_offline_configure_cache_size]
  +  }
  +
     void accessDataOffline_listenToOfflineData() {
       // [START access_data_offline_listen_to_offline_data]
       db
  
positive.code: 
    void accessDataOffline_enableNetwork() {
      // [START access_data_offline_enable_network]
      db.disableNetwork().then((_) {
        // Do offline things
      });
      // [END access_data_offline_enable_network]
    }
  
negative.code:     // [END perform_simple_and_compound_queries_array_contains_any]
    }
  
    void performSimpleAndCompoundQueries_inArray() {
      // [START perform_simple_and_compound_queries_array_wherein]
      final citiesRef = db.collection("cities");
      final cities = citiesRef.where("regions", whereIn: [
        ["west_coast"],
        ["east_coast"]
      ]);
      // [END perform_simple_and_compound_queries_array_wherein]
    }
  
    void performSimpleAndCompoundQueries_compoundQueries() {
      // [START perform_simple_and_compound_queries_compound_queries]
      final citiesRef = db.collection("cities");
  