pickMedia method

Implementation

@override
Future<List<SafDocumentFile>?> pickMedia({
  bool multiple = true,
  String mode = 'all',
}) async {
  final maps = await methodChannel.invokeListMethod<Map<dynamic, dynamic>>(
    'pickMedia',
    {'multiple': multiple, 'mode': mode},
  );
  return maps?.map((map) => SafDocumentFile.fromMap(map)).toList();
}