getUuid method
Returns the uuid of RSA signer.
Implementation
Future<String> getUuid() async {
var isCorrectUuid =
await _channel.invokeMethod('checkUuid', {'uuid': uuid});
if (isCorrectUuid) {
return uuid;
} else {
throw IncorrectUuidException(
'There are no keys associated with this UUID saved on the device');
}
}