anchor.diff:        credentials = await refreshCredentials(clientId, credentials, client);
       } else {
         credentials = null;
  -      print('Cached credentials lack the requested scopes - doing auth!');
  +      stderr.writeln(
  +          'Cached credentials lack the requested scopes - doing auth!');
       }
     }
   
  
positive.code: }
  
  void _prompt(String url) {
    print('Please go to the following URL and grant access:');
    print('  => $url');
    print('');
  }
  
  String prettyJsonEncode(Object? object) =>
  
negative.code: 
    credentialsFile.writeAsStringSync(prettyJsonEncode(credentials));
  
    stderr.writeln(
      '* Credentials expire in '
      '${credentials.accessToken.expiry.difference(DateTime.now())} *',
    );
  