isGroupBlocked method Null safety

Future<bool> isGroupBlocked(
  1. {@required String? id}
)

Implementation

Future<bool> isGroupBlocked({
  @required String? id,
}) async {
  Map resJson = await _channel.invokeMethod('isGroupBlocked',
      {'id': id}..removeWhere((key, value) => value == null));
  return resJson['isBlocked'];
}