docs: def _from_binary_b_ace(cls, binary_stream):
      """See base class."""
      ''' Access rights flags - 4
          SID - n
      '''
      access_flags = cls._REPR.unpack(binary_stream[:cls._REPR.size])[0]
      sid = SID.create_from_binary(binary_stream[cls._REPR.size:])
  
      nw_obj = cls((ACEAccessFlags(access_flags), sid))
  
      return nw_obj