isModelDownloaded method
Check if a particular model is downloaded.Takes the language tag as input.The language should be according to the BCP-47 guidelines.
Implementation
Future<bool> isModelDownloaded(String modelTag) async {
final result = await Vision.channel.invokeMethod('vision#manageInkModels',
<String, dynamic>{'task': 'check', 'modelTag': modelTag});
return result as bool;
}