po.Exception

{
    "code": 0,
    "created_at": "string",
    "deleted_at": {
        "time": "string",
        "valid": true
    },
    "happen_at": "string",
    "id": 0,
    "message": "string",
    "sn": "string",
    "task_id": 0,
    "updated_at": "string"
}