class_docstr: VectorEnv analog to gym.Wrapper.
class_docstr_tok: ["VectorEnv","analog","to","gym.Wrapper","."]
code: def seed(self, seed=None):
      return self.env.seed(seed)
  
imports: from collections import deque
  import numpy
  from gym import spaces
  from pfrl.env import VectorEnv
  from pfrl.wrappers.atari_wrappers import LazyFrames
label_desc: Use image node_id 7 for calling the VectorEnvWrapper obj's underlying member method code with example usage: obj.seed(seed) and returns: self