To anyone else: For some reason you don't always get the error message displayed in the console with the example. I guess that if the operation takes longer time (as it's async) then it takes to get to the line that reads the SMS input, you won't see the error message following your login.
In my case when I tested the same script later the message "This device already have authentication" (or something like that, can't remember), so my issue was that I had tried to login with my "main account" which I have connected with my phone, and not my "bot account".
