def strip_bitmap_str(payload):
        """strip(8 byte) wlan.ba.bm
        :payload: ctypes.structure
        :return: str
            bitmap
        """
        bitmap = struct.unpack('BBBBBBBB', payload)
        bitmap_str = ''
        for elem in bitmap:
            bitmap_str += format(elem, '08b')[::-1]
        return bitmap_str
def strip_bitmap_str(payload):
        """strip(8 byte) wlan.ba.bm
        :payload: ctypes.structure
        :return: str
            bitmap
        """
        bitmap = struct.unpack('BBBBBBBB', payload)
        bitmap_str = ''
        for elem in bitmap:
            bitmap_str += format(elem, '08b')[::-1]
        return bitmap_str
def strip_bitmap_str ( payload ) : bitmap = struct . unpack ( 'BBBBBBBB' , payload ) bitmap_str = '' for elem in bitmap : bitmap_str += format ( elem , '08b' ) [ : : - 1 ] return bitmap_str
strip(8 byte) wlan.ba.bm
        :payload: ctypes.structure
        :return: str
            bitmap
strip ( 8 byte ) wlan . ba . bm : payload : ctypes . structure : return : str bitmap