def __init__(self):
    self._amount = None
    self._biz_no = None
    self._currency_value = None
    self._ext_info = None
    self._order_no = None
    self._refund_type = None
    self._remark = None
    self._request_no = None
    self._request_time = None
    self._scene_type = None
def __init__(self):
    self._amount = None
    self._biz_no = None
    self._currency_value = None
    self._ext_info = None
    self._order_no = None
    self._refund_type = None
    self._remark = None
    self._request_no = None
    self._request_time = None
    self._scene_type = None