新建数据模型

{
    "code": 0,
    "message": "string",
    "context": {
        "uniqueRefundNo": "string",
        "refundNo": "string",
        "orderNo": "string",
        "uniqueOrderNo": "string",
        "refundAmt": 0,
        "returnFee": 0,
        "status": "string",
        "failureReason": "string",
        "description": "string",
        "memo": "string",
        "refundRequestDate": "2019-08-24T14:15:22.123Z",
        "refundSuccessDate": "2019-08-24T14:15:22.123Z"
    },
    "traceId": "string",
    "spanId": "string"
}