code: def strip_rx_flags(self, idx):
          
          rx_flags = collections.namedtuple('rx_flags', ['reserved', 'badplcp'])
  
          idx = Radiotap.align(idx, 2)
          flags, = struct.unpack_from('<H', self._rtap, idx)
          flag_bits = format(flags, '08b')[::-1]
          rx_flags.reserved = int(flag_bits[0])
          rx_flags.badplcp = int(flag_bits[1])
          return idx + 2, rx_flags
docs: strip(2 byte) radiotap.rxflags
          :idx: int
          :return: int
              idx
          :return: collections.namedtuple