def getReadGroupSetByName(self, name):
        """
        Returns a ReadGroupSet with the specified name, or raises a
        ReadGroupSetNameNotFoundException if it does not exist.
        """
        if self._readGroupSetNameMap not in name:
            raise exceptions.ReadGroupSetNameNotFoundException(name)
        return self._readGroupSetNameMap[name]
dataset/ETHPy150Open ga4gh/server/ga4gh/datamodel/datasets.py/AbstractDataset.getReadGroupSetByName/swapped operands of `not in`