if vv.Kind() == reflect.Ptr {
		vv = vv.Elem()
	}
	if vv.Kind() == reflect.Interface {
		vv = vv.Elem()
	}
	return vv.Kind() == reflect.Slice
}

// isMapOrInterface reports whether v is a map, or interface to a map.
func isMapOrInterface(v any) bool {
	vv := reflect.ValueOf(v)
	if vv.Kind() == reflect.Interface {
		vv = vv.Elem()
	}
	return vv.Kind() == reflect.Map
}