你好，订单1056在orders.json接口返回的line_items交易中，有小费返回，但是我们需要将小费交易区分开来，没有看到能指定小费的标识，请帮忙确认下什么字段可以标识。谢谢（图片是小费报文截图和后台截图）
{“id”:16365225869621,“admin_graphql_api_id”:“gid://shopify/LineItem/16365225869621”,“attributed_staffs”:,“current_quantity”:1,“fulfillable_quantity”:0,“fulfillment_service”:“manual”,“fulfillment_status”:“not_eligible”,“gift_card”:false,“grams”:0,“name”:“Tip”,“price”:“3.59”,“price_set”:{“shop_money”:{“amount”:“3.59”,“currency_code”:“USD”},“presentment_money”:{“amount”:“3.59”,“currency_code”:“USD”}},“product_exists”:false,“product_id”:null,“properties”:,“quantity”:1,“requires_shipping”:false,“sku”:null,“taxable”:false,“tip”:{“payment_method”:null,“payment_gateway”:null},“tip_payment_gateway”:null,“tip_payment_method”:null,“title”:“Tip”,“total_discount”:“0.00”,“total_discount_set”:{“shop_money”:{“amount”:“0.00”,“currency_code”:“USD”},“presentment_money”:{“amount”:“0.00”,“currency_code”:“USD”}},“variant_id”:null,“variant_inventory_management”:null,“variant_title”:null,“vendor”:null,“tax_lines”:,“duties”:,“discount_allocations”:}
