getParameters method
(UNTESTED)
Implementation
Future<Map<String, String>> getParameters(String keys) async {
// What is the format of keys?
return Map.fromEntries(
(await _channel.invokeMethod<String>('getParameters', [keys]))!
.split(';')
.map((s) => s.split('='))
.map((pair) => MapEntry(pair[0], pair[1])));
}