def _reset(self):
        """ Do no-op action for a number of steps in [1, noop_max]."""
        self.env.reset()
        if self.override_num_noops is not None:
            noops = self.override_num_noops
        else:
            noops = np.random.randint(1, self.noop_max + 1)
        assert noops > 0
        obs = None
        for _ in range(noops):
            obs, _, done, _ = self.env.step(0)
            if done:
                obs = self.env.reset()
        return obs
 Do no-op action for a number of steps in [1, noop_max].
surreal/env/atari_wrappers_deprecated.py