import org.spongepowered.api.item.inventory.entity.MainPlayerInventory; //导入依赖的package包/类
public String toString(boolean unks) {
    if (remAs != null) {
        return "shared/" + remAs;
    }
    if (internal instanceof MainPlayerInventory) {
        return "player/" + ((PlayerInventory) (internal).parent()).getCarrier().get().getUniqueId().toString();
    }
    else if (internal instanceof CarriedInventory) {
        Object o = ((CarriedInventory) internal).getCarrier().orElse(null);
        if (o == null) {
            return "((UNKNOWN INVENTORY TYPE))";
        }
        if (o instanceof Entity) {
            return "entity/" + ((Entity) o).getUniqueId().toString();
        }
        else if (o instanceof TileEntityCarrier) {
            LocatableBlock lb = ((TileEntityCarrier) o).getLocatableBlock();
            return "block/" + new LocationTag(new UtilLocation(lb.getPosition(), lb.getWorld()));
        }
    }
    if (!unks) {
        // TODO: Handle all inventory types somehow???
        throw new RuntimeException("Inventory type not known to the system!");
    }
    else {
        return "((UNKNOWN INVENTORY TYPE))";
    }
}