@atomic.action_timer("nova.list_agents")
    def _list_agents(self, hypervisor=None):
        return self.admin_clients("nova").agents.list(hypervisor)
Test if it remove non installed module using cpan
dataset/ETHPy150Open openstack/rally/rally/plugins/openstack/scenarios/nova/utils.py/NovaScenario._list_agents--crossover with--dataset/ETHPy150Open saltstack/salt/tests/unit/modules/cpan_test.py/CpanTestCase.test_remove_noninstalled_error