def load_plugin(auth_system):
    try:
        plugin_class = _discovered_plugins[auth_system]
    except __HOLE__:
        raise exceptions.AuthSystemNotFound(auth_system)
    return plugin_class(auth_system=auth_system)
dataset/ETHPy150Open openstack/python-rackclient/rackclient/openstack/common/apiclient/auth.py/load_plugin