This is an anti-pattern IMO and requires an import to opt-in (by the author, not the caller IIRC). Instead you'd use an implicit value class which should be zer

This is an anti-pattern IMO and requires an import to opt-in (by the author, not the caller IIRC). Instead you'd use an implicit value class which should be zero overhead. But that's just about the definition, not what it's doing which is no good. Anyone can abuse a lot of these features, which depending upon who you'd ask, is better flexibility than not having them at all.