return m[k]
}

func deref[P ~*E, E any](p P) E {
	return *p
}

func _() int {
	p := new(int)
	return deref(p)
}

func addrOfCopy[V any, P *V](v V) P {
	return &v
}

func _() *int {
	return addrOfCopy(0)
}

// A type parameter may not be embedded in an interface;
// so it can also not be used as a constraint.