async def chargeback(ns):
    """ 退单
        id:订单的id
    """
    db = DBPools()
    async with db.sqlorContext('kboss') as sor:
        try:
            await sor.U('bz_order', {'id':ns['id'],'business_op':'BUY_REVERSE','order_status':'0'})
            await order2bill(ns['id'], sor)
            bills = await sor.R('bill', {'orderid':ns.get('id')})
            for i in bills:
                ba = BillAccounting(i)
                r = await ba.accounting(sor)
                order_goods = await sor.R('customer_goods', {'orderid': ns['id']})
                for j in order_goods:
                    await sor.U('customer_goods', {'id': j['id'],'del_flg':'1'})
            await sor.U('bz_order', {'id': ns['id'], 'order_status':'3'})
            return {'status': True, 'msg': '成功'}
        except Exception as e:
            raise e
    return {'status': False, 'msg': '失败'}

ret = await chargeback(params_kw)
return ret