initialize method
Implementation
@override
Future<bool?> initialize(String configFilePath) async {
ByteData data = await rootBundle.load(configFilePath);
List<int> fileBytes = data.buffer.asUint8List();
final isInitialized = await methodChannel.invokeMethod<bool>('initialize',
{'configFilePath': configFilePath, 'fileBytes': fileBytes});
return isInitialized;
}