How to use the react-native-background-fetch.NETWORK_TYPE_NONE function in react-native-background-fetch

configureBackgroundFetch() {
    // [Optional] Configure BackgroundFetch.
    BackgroundFetch.configure({
      minimumFetchInterval: 15, // <-- minutes (15 is minimum allowed)
      stopOnTerminate: false, // <-- Android-only,
      startOnBoot: true, // <-- Android-only
      enableHeadless: true,
      requiresCharging: false,
      requiredNetworkType: BackgroundFetch.NETWORK_TYPE_NONE,
      requiresDeviceIdle: false,
      requiresBatteryNotLow: false,
      requiresStorageNotLow: false
    }, async () => {
      console.log('- BackgroundFetch start');
      let location = await BackgroundGeolocation.getCurrentPosition({persist: true, samples:1, extras: {'context': 'background-fetch-position'}});
      console.log('- BackgroundFetch current position: ', location) // <-- don't see this
      BackgroundFetch.finish(BackgroundFetch.FETCH_RESULT_NEW_DATA);
    }, (error) => {
      console.log('[js] RNBackgroundFetch failed to start')
    });
  }