code: def __init__(self, capacity=None):
      self.current_episode = collections.defaultdict(list)
      self.episodic_memory = RandomAccessQueue()
      self.memory = RandomAccessQueue()
      self.capacity = capacity
  
file_path: chainerrl/chainerrl/replay_buffers/episodic.py
imports: import collections
  import pickle
  from chainerrl.misc.collections import RandomAccessQueue
  from chainerrl.replay_buffer import AbstractEpisodicReplayBuffer
  from chainerrl.replay_buffer import random_subseq
label_desc: Use image node_id 1 to create a new EpisodicReplayBuffer object from inherited base classes: AbstractEpisodicReplayBuffer with example: obj = EpisodicReplayBuffer(capacity)