| Name | Description | Type | Additional information | 
|---|---|---|---|
| billnum | 
                         退货单号。  | 
                    string | 
                                 Required Max length: 20  | 
                
| paymentItems | 
                         订单退款方式  | 
                    Collection of CUnPosSellTicketTranTicketPayItem | 
                                 Required  | 
                
| refundGoods | 
                         被退的商品明细的autoid。  | 
                    Collection of string | 
                             None.  | 
                
| memory | 
                         备注。  | 
                    string | 
                             None.  |