golang return multiple values issue

Question

I was wondering why this is valid go code:

func FindUserInfo(id string) (Info, bool) {
    it, present := all[id]
    return it, present
}

but

Answer 1

By default, maps in golang return a single value when accessing a key

https://blog.golang.org/go-maps-in-action

Hence, return all[id] won't compile for a function that expects 2 return values.