public Task SetUserNameAsync()

in app/Data/AppUserStore.cs [132:140]


        public Task SetUserNameAsync(AppUser user, string userName, CancellationToken cancellationToken)
        {
            cancellationToken.ThrowIfCancellationRequested();
            if (user == null) throw new ArgumentNullException(nameof(user));
            if (userName == null) throw new ArgumentNullException(nameof(userName));

            user.UserName = userName;
            return Task.FromResult<object>(null);
        }