on script load:
  import "org.bukkit.inventory.ItemFlag"
get expression hide (0¦attributes|1¦destroy[s]|2¦enchant[s]|3¦(placed|built|build) [on]|4¦potion effects|5¦unbreakable):
  switch parse mark:
    case 0:
      continue returning {ItemFlag}.HIDE_ATTRIBUTES!
    case 1:
      continue returning {ItemFlag}.HIDE_DESTROYS!
    case 2:
      continue returning {ItemFlag}.HIDE_ENCHANTS!
    case 3:
      continue returning {ItemFlag}.HIDE_PLACED_ON!
    case 4:
      continue returning {ItemFlag}.HIDE_POTION_EFFECTS!
    case 5:
      continue returning {ItemFlag}.HIDE_UNBREAKABLE!
get expression %itemstack% with [item] flag[s] %objects%:
  set {_item} to first element out of (try ((expression 1).getRandom()) and expression 1)
  set {_stack} to {_item}.clone()
  set {_meta} to {_stack}.getItemMeta()
  {_meta}.addItemFlags([expressions 2 as {ItemFlag}]);
  {_stack}.setItemMeta({_meta});
  continue returning {_stack}