def _parse_vaco(self):
        raise NotImplementedError()
transform a CSW exception into an SRU diagnostic
dataset/ETHPy150Open openstack/storlets/Engine/swift/storlet_middleware/storlet_handler.py/BaseStorletHandler._parse_vaco--crossover with--dataset/ETHPy150Open geopython/pycsw/pycsw/sru.py/Sru.exceptionreport2diagnostic