退货单对象OrderReturnParam(退货单对象OrderReturnParam)

{
    "buyerId": 0,
    "buyerName": "string",
    "orderCode": "string",
    "orderDetails": [
        {
            "baseUnitNumbers": 0,
            "purchaseNumbers": 0,
            "relatedId": 0
        }
    ],
    "orderPayDetails": [
        {
            "exceptionFlag": 0,
            "payAmount": 0,
            "payment": "string",
            "relatedId": 0
        }
    ],
    "refundNum": "string",
    "refundReason": "string",
    "relatedCode": "string",
    "tradeNum": "string",
    "warehouseId": 0
}