if (typeof dataLayer !== "undefined") {
dataLayer.push({
"ecommerce": {
"currency": "CNY",
"impressions": [
{
"id": "44445",
"name": "Trek Flare R Metro 后车灯",
"price": "138.0",
"brand": "Trek",
"category": "Bike lights",
"variant": "black",
"list": "CATEGORY",
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console.log("dataLayer");
}