getBluetoothDevices method
Implementation
@override
Future<List<BluetoothDeviceModel>> getBluetoothDevices() async {
final result =
await _channel.invokeMethod(PrinterMethod.getBluetoothDevices.value);
return List<Map<dynamic, dynamic>>.from(result)
.map((e) => BluetoothDeviceModel.fromMap(Map<String, dynamic>.from(e)))
.toList();
}