code: def strip_cntrl(payload):
          
          cntrl = struct.unpack('H', payload)[0]
          cntrl_bits = format(cntrl, '016b')[::-1]
          ackpolicy = int(cntrl_bits[0])
          multitid = int(cntrl_bits[1])
          return ackpolicy, multitid
docs: strip(2 byte) wlan.ba.control
          :payload: ctypes.structure
          :return: int
              multitid (tid: traffic indicator)
          :return: int
              ackpolicy