in src/Amazon.AspNetCore.Identity.Cognito/CognitoUserManager.cs [232:242]
public override async Task<IdentityResult> SetTwoFactorEnabledAsync(TUser user, bool enabled)
{
ThrowIfDisposed();
if (user == null)
{
throw new ArgumentNullException(nameof(user));
}
await _userStore.SetTwoFactorEnabledAsync(user, enabled, CancellationToken).ConfigureAwait(false);
return IdentityResult.Success;
}