Context: Found this candidate, but the arguments don't match. factory RsaPss(

[xros]

Trying to usage this example: https://pub.dev/documentation/cryptography/latest/cryptography/RsaPss-class.html

import 'package:cryptography/cryptography.dart';

Future<void> main() async {
  final algorithm = RsaPss(
    hashAlgorithm: Sha256(),
  );

  // Generate a key pair
  final keyPair = await algorithm.newKeyPair();

  // Sign a message
  final message = <int>[1,2,3];
  final signature = await algorithm.sign(
    message,
    keyPair: keyPair,
  );
  print('Signature bytes: ${signature.bytes}');
  print('Public key: ${signature.publicKey.bytes}');

  // Anyone can verify the signature
  final isSignatureCorrect = await algorithm.verify(
    message,
    signature: signature,
  );
}

But i got this error:

lib/services/crypto.dart:4:27: Error: Too few positional arguments: 1 required, 0 given.
  final algorithm = RsaPss(
                          ^
../../flutter/.pub-cache/hosted/pub.dartlang.org/cryptography-2.0.5/lib/src/cryptography/algorithms.dart:1183:11: Context: Found this candidate, but the arguments don't match.
  factory RsaPss(

From VScode

The named parameter 'hashAlgorithm' isn't defined.
Try correcting the name to an existing named parameter's name, or defining a named parameter with the name 'hashAlgorithm'.

Dart version 2.16.0 AMD64 macOS cryptography version 2.0.5

Is the doc wrong or the dart sdk?