getListOfRegions function
Implementation
Future<List<OfflineRegion>> getListOfRegions() async {
final String regionsJson = await _globalChannel.invokeMethod(
'getListOfRegions',
<String, dynamic>{},
);
final Iterable regions = json.decode(regionsJson);
return regions.map((region) => OfflineRegion.fromMap(region)).toList();
}