def authenticate(self, request):
        try:
            return TokenAuthentication.authenticate(TokenAuthentication(), request)
        except:
            return AnonymousUser(), None
Unrescue the given server.
dataset/ETHPy150Open deis/deis/controller/api/authentication.py/AnonymousOrAuthenticatedAuthentication.authenticate--crossover with--dataset/ETHPy150Open openstack/rally/rally/plugins/openstack/scenarios/nova/utils.py/NovaScenario._unrescue_server