def _get_cloud_drivers(self, config):
        base_ec2 = config["aws"]

        drivers = [
            get_rackspace_driver(config["rackspace"]),
            get_ec2_driver(base_ec2),
        ]

        for extra in config.get("extra-aws", []):
            extra_driver_config = base_ec2.copy()
            extra_driver_config.update(extra)
            drivers.append(get_ec2_driver(extra_driver_config))
        return drivers
Return true if the named remote branch exists
dataset/ETHPy150Open ClusterHQ/flocker/admin/cleanup.py/CleanVolumes._get_cloud_drivers--crossover with--dataset/ETHPy150Open dimagi/commcare-hq/scripts/rebuildstaging.py/has_remote