value struct label:
    text: string = "Untitled"

func (item label) init(text: string = "Ready"):
    item.text = text

struct package:
    title: label
    item_count: i32 = 1

func entry(extra_items: i32) -> i32:
    var parcel = package()
    parcel.item_count += extra_items
    return parcel.item_count