In most cases, it's either a forgotten import or a typo. However, let's look at
how you can have such a type:
#![allow(unused)]fnmain() {
structType(u32); // this is a tuple structenumFoo {
Bar(u32), // this is a tuple variant
}
use Foo::*; // To use Foo's variant directly, we need to import them in// the scope.}
Either way, it should work fine with our previous code: