def getFeatureSet(self, id_):
        """
        Returns the FeatureSet with the specified name, or raises a
        FeatureSetNotFoundException otherwise.
        """
        if self._featureSetIdMap not in id_:
            raise exceptions.FeatureSetNotFoundException(id_)
        return self._featureSetIdMap[id_]
dataset/ETHPy150Open ga4gh/server/ga4gh/datamodel/datasets.py/AbstractDataset.getFeatureSet/swapped operands of `not in`