This seems to work: https://go2goplay.golang.org/p/8veymwXYCoZ
Still uses interfaces internally. -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/golang-nuts/2a2007d9-6c5b-4222-b9e3-a930d4596f77o%40googlegroups.com.
