def allowInstancesOf(self, *classes):
        self.allowBasicTypes()
        self.allowTypes("instance", "class", "classobj", "module")
        for klass in classes:
            self.allowTypes(qual(klass))
            self.allowModules(klass.__module__)
            self.allowedClasses[klass] = 1
SecurityOptions.allowInstances(klass, klass, ...): allow instances
dataset/ETHPy150Open nlloyd/SubliminalCollaborator/libs/twisted/spread/jelly.py/SecurityOptions.allowInstancesOf