getFacebookData method
Implementation
@override
Future<ApphudFacebookData?> getFacebookData() async {
final map = await methodChannel.invokeMethod<Map>('getFacebookData');
if (map == null) return null;
final extInfo = map['ext_info'] as String?;
final anonId = map['anon_id'] as String?;
return ApphudFacebookData(
extInfo: extInfo,
anonId: anonId,
);
}