docs: def checkin_boardingpass(self, code, passenger_name, seat_class,
                               etkt_bnr, seat='', gate='', boarding_time=None,
                               is_cancel=False, qrcode_data=None, card_id=None):
          """
          飞机票接口
          """
          data = {
              'code': code,
              'passenger_name': passenger_name,
              'class': seat_class,
              'etkt_bnr': etkt_bnr,
              'seat': seat,
              'gate': gate,
              'is_cancel': is_cancel
          }
          if boarding_time:
              data['boarding_time'] = boarding_time
          if qrcode_data:
              data['qrcode_data'] = qrcode_data
          if card_id:
              data['card_id'] = card_id
          return self._post(
              'card/boardingpass/checkin',
              data=data
          )