public function up(): void 	{ 		Schema::table('order_items', function (Blueprint $table) { 			$table->unsignedDouble('total_price_with_tax')->after('item_id'); 			$table->unsignedDouble('total_price_without_tax')->after('item_id'); 			$table->unsignedDouble('total_tax')->after('item_id'); 			$table->unsignedDouble('tax')->after('item_id'); 			$table->unsignedDouble('total_return_fee')->after('item_id'); 			$table->unsignedDouble('return_fee')->after('item_id'); 			$table->unsignedDouble('base_price')->after('id'); 		}); 	}