I’m confused. First, there’s no notion of sub-typing in Go. Second, the closest thing I can think of what you mean does work: https://play.golang.org/p/IE9sg4Cw

I’m confused. First, there’s no notion of sub-typing in Go. Second, the closest thing I can think of what you mean does work: https://play.golang.org/p/IE9sg4CwCd_C https://play.golang.org/p/IE9sg4CwCd_C