>I know this exists, which might help in implementing that: > https://metacpan.org/pod/MooseX::Meta::TypeConstraint::Intersection Oooo, that looks very promising. Thanks for that! Now I just need to make the sugar :)
But does the parameterization shown in your example already exist? Or did you make that up? I know I can say things like ArrayRef[String] but I didn't know I could pass arguments into those things. -Jeff