def RequestedData(self):
    """Gets requested kinds of data.

    @rtype: frozenset

    """
    return (self._filter_datakinds |
            frozenset(datakind for (_, datakind, _, _) in self._fields
                      if datakind == None))
dataset/ETHPy150Open ganeti/ganeti/lib/query.py/Query.RequestedData/operator `is not` -> `==`