public void Add_Wish_List(Wish_List wish_list)
{
Wish_Lists.Add(wish_list);
}
public void Remove_Wish_List(Wish_List wish_list)
{
Wish_Lists.Remove(wish_list);
}
public void Update_Existing_Wish_List(Wish_List wish_list, Person owner, List<Wish_List_Item> wish_list_items)
{
wish_list.Owner = owner;
wish_list.Wish_List_Items = wish_list_items;
}