How to use the stable-baselines.stable_baselines.acer.acer_simple.ACER function in stable-baselines

self.done_ph = None
        self.reward_ph = None
        self.mu_ph = None
        self.learning_rate_ph = None
        self.polyak_model = None
        self.learning_rate_schedule = None
        self.run_ops = None
        self.names_ops = None
        self.train_model = None
        self.step_model = None
        self.proba_step = None
        self.n_act = None
        self.n_batch = None
        self.summary = None

        super(ACER, self).__init__(policy=policy, env=env, verbose=verbose, requires_vec_env=True,
                                   _init_setup_model=_init_setup_model, policy_kwargs=policy_kwargs,
                                   seed=seed, n_cpu_tf_sess=n_cpu_tf_sess)


        if _init_setup_model:
            self.setup_model()