code: def __init__(self, max_replay_memory_size):
      self.replay_memory = deque(maxlen=max_replay_memory_size)
      self.max_replay_memory_size = max_replay_memory_size
      self.accu_memory_num = 0
  
imports: import logging
  from collections import deque
  from typing import NamedTuple
  import numpy
  import torch
  import torch.nn
  import torch.nn.functional
  from reagent.core import types
  from reagent.core.torch_utils import stack
  from torch.distributions.normal import Normal
label_desc: Use image node_id 1 to create a new MDNRNNMemoryPool object  with example: obj = MDNRNNMemoryPool(max_replay_memory_size)