RecordEpisodeStatistics 中的潜在错误

From: https://GitHub.com/sail-sg/envpool/blob/main/examples/cleanrl_examples/ppo_atari_envpool.py

class RecordEpisodeStatistics(gym.Wrapper): def init(self, env, deque_size=100): super(RecordEpisodeStatistics, self).init(env) self.num_envs = getattr(env, "num_envs", 1) self.episode_returns = None self.episode_lengths = None # get