in src/Amazon.AspNetCore.Identity.Cognito/CognitoUserManager.cs [212:221]
public virtual Task<AuthFlowResponse> RespondToTwoFactorChallengeAsync(TUser user, string code, ChallengeNameType challengeNameType, string authWorkflowSessionId)
{
ThrowIfDisposed();
if (user == null)
{
throw new ArgumentNullException(nameof(user));
}
return _userStore.RespondToTwoFactorChallengeAsync(user, code, challengeNameType, authWorkflowSessionId, CancellationToken);
}