def cacheLocally(self, cid, instance):
        self.locallyCachedObjects[cid] = instance
Get the fully qualified extension point identifer.
dataset/ETHPy150Open nlloyd/SubliminalCollaborator/libs/twisted/spread/pb.py/Broker.cacheLocally--crossover with--dataset/ETHPy150Open nucleic/enaml/enaml/workbench/extension_point.py/ExtensionPoint.qualified_id