[perturbation]

https://github.com/yuki24/did_you_mean#installation :

    Ruby 2.3 and later ships with this gem and it will automatically be required when a Ruby process starts up. No special setup is required.

It doesn't call the method for you, but it does do the did-you-mean automatically if you misspell and it's close enough.

[justrudd]

Maybe this what they meant? I dunno. I can see this being helpful in irb/pry.

In the end, we did end up making an offer to this candidate. They did well on everything we asked them. This was the only "brain fart" they had.