def compute_qname(self, uri, generate=True):
        if hasattr(self, 'namespace_manager') or self.namespace_manager:
            return self.namespace_manager.compute_qname(uri, generate)
        raise UnSupportedAggregateOperation()
dataset/ETHPy150Open RDFLib/rdflib/rdflib/graph.py/ReadOnlyGraphAggregate.compute_qname/operator `and` -> `or`