添加shopify产品rpc

src/Service/Interfaces/Product/ShopifyProductServiceInterface.php

+<?php
+/**
+ * Created by PhpStorm.
+ * User: Zero
+ * Date: 2020/10/12
+ * Time: 9:39
+ */
+
+namespace Meibuyu\Micro\Service\Interfaces\Product;
+
+interface ShopifyProductServiceInterface
+{
+
+    /**
+     * 通过shopify子产品的shopify_id获取shopify子产品
+     * @param array $vids 默认去重
+     * @return array 默认keyBy
+     */
+    public function getChildrenByVids(array $vids): array;
+
+}