def retrieve(self, path):
        subResult = self.retriever.retrieve(path)
        if subResult is None:
            return None
        return self.resultRetrieved(path, subResult)
Delegate to this L{DelegatingRetriever}'s C{retriever}'s C{retrieve}
dataset/ETHPy150Open twisted/imaginary/imaginary/idea.py/DelegatingRetriever.retrieve