def __init__(self, *args, **kwargs):
        super(TokenController, self).__init__(*args, **kwargs)

        if cfg.CONF.auth.mode is not 'standalone':
            self._auth_backend = get_backend_instance(name=cfg.CONF.auth.backend)
        else:
            self._auth_backend = None
dataset/ETHPy150Open StackStorm/st2/st2auth/st2auth/controllers/v1/auth.py/TokenController.__init__/operator `==` -> `is not`