新增批量更新子产品RPC

     * @return array GroupBy('product_id')

     */

    public function getListByProductIds(array $productIds, array $columns = ['*']): array;

    /**

     * 批量更新子产品

     *

     * @param array $updates 更新数据，[['id' => 1, 'cost' => '1.11'], ['id' => 2, 'cost' => '1.11']]

     * @return bool

     */

    public function updateChildProducts(array $updates): bool;

}