新增rpc方法

src/Service/Interfaces/Product/ProductServiceInterface.php

@@ -409,4 +409,13 @@ interface ProductServiceInterface
      * @return array
      */
     public function getProductsBySkuList(array $skuList, array $relations = [], array $columns = ['*']):array;
+
+
+    /**
+     * @param array $skuList
+     * @param array $relations
+     * @param array|string[] $columns
+     * @return array
+     */
+    public function getProductsByChildSkuList(array $skuList, array $relations = [], array $columns = ['*']):array;
 }