code: def strip_ccmp(self, idx):
          
          ccmp_extiv = None
          if len(self._packet[idx:]) >= 8:
              raw_bytes = self._packet[idx:idx + 8]
              ccmp_extiv, = struct.unpack_from('Q', raw_bytes, 0)
          return 8, ccmp_extiv
docs: strip(8 byte) wlan.ccmp.extiv
          CCMP Extended Initialization Vector
          :return: int
              number of processed bytes
          :return: ctypes.raw
              ccmp vector