@classmethod
    def get_namespace(cls):
        return cls._meta_get("namespace")
Remove any other Column Mappings that use these columns.
dataset/ETHPy150Open openstack/rally/rally/common/plugin/plugin.py/Plugin.get_namespace--crossover with--dataset/ETHPy150Open buildingenergy/buildingenergy-platform/seed/models.py/ColumnMapping.remove_duplicates