set method
Implementation
@override
Future<bool> set(T value) {
if (value is bool) {
return prefs.setBool(key, value);
} else if (value is String) {
return prefs.setString(key, value);
} else if (value is int) {
return prefs.setInt(key, value);
} else if (value is double) {
return prefs.setDouble(key, value);
} else {
throw Exception('Unsupported type');
}
}