@atomic.action_timer("nova.list_servers")
    def _list_servers(self, detailed=True):
        return self.clients("nova").servers.list(detailed)
Return a singleton instance of BigQueryClient. Either
dataset/ETHPy150Open openstack/rally/rally/plugins/openstack/scenarios/nova/utils.py/NovaScenario._list_servers--crossover with--dataset/ETHPy150Open tylertreat/BigQuery-Python/bigquery/client.py/get_client