Dart type you have NEVER used

Dart type system goes: never say never…

First of all, the title of this article could seem like just another clickbait but let me explain. Sure, there is a chance that you have used this type, but for the sake of a pun (and I REALLY enjoy them), I had to do it - oh well, here we are now. The thing is, the type I am going to talk about in this article is actually called Never.