public static ItemStack parseItem(ConfigurationNode node) {
        try {
            ConfigurationNode item_type_node = node.getNode("ITEM_TYPE");
            ConfigurationNode state_node = node.getNode("STATE");
            ConfigurationNode quantity_node = node.getNode("QUANTITY");
            ConfigurationNode durability_node = node.getNode("DURABILITY");
            ConfigurationNode display_name_node = node.getNode("DISPLAY_NAME");
            ConfigurationNode lore_node = node.getNode("LORE");
            ConfigurationNode enchantments_node = node.getNode("ENCHANTMENTS");
            ItemStack.Builder builder = ItemStack.builder();
            if (!state_node.isVirtual()) {
                BlockState state = state_node.getValue(TypeToken.of(BlockState.class));
                builder.fromBlockState(state);
            } else if (!item_type_node.isVirtual()) {
                ItemType type = item_type_node.getValue(TypeToken.of(ItemType.class));
                builder.itemType(type);
            } else {
                throw new RuntimeException("Both of ITEM_TYPE and STATE nodes not exist!");
            }
            int quantity = quantity_node.getInt(1);
            builder.quantity(quantity);