code: def _worker(remote, parent_remote, env_fn_wrapper):
      parent_remote.close()
      env = env_fn_wrapper.var()
      while True:
          try:
              cmd, data = remote.recv()
              if cmd == "step":
                  observation, reward, done, info = env.step(data)
                  if done:
                      # save final observation where user can get it, then reset
                      info["terminal_observation"] = observation
                      observation = env.reset()
                  remote.send((observation, reward, done, info))
              elif cmd == "seed":
                  remote.send(env.seed(data))
              elif cmd == "reset":
                  observation = env.reset()
                  remote.send(observation)
              elif cmd == "render":
                  remote.send(env.render(data))
              elif cmd == "close":
                  env.close()
                  remote.close()
                  break
              elif cmd == "get_spaces":
                  remote.send((env.observation_space, env.action_space))
              elif cmd == "env_method":
                  method = getattr(env, data[0])
                  remote.send(method(*data[1], **data[2]))
              elif cmd == "get_attr":
                  remote.send(getattr(env, data))
              elif cmd == "set_attr":
                  remote.send(setattr(env, data[0], data[1]))
              else:
                  raise NotImplementedError(
                      "`{}` is not implemented in the worker".format(
                          cmd
                      )
                  )
          except EOFError:
              break
  
imports: import os
  import multiprocessing
  from collections import OrderedDict
  from typing import Sequence
  import gym
  import numpy
  from stable_baselines.common.vec_env.base_vec_env import VecEnv, CloudpickleWrapper
label_desc: Use image node_id 1 for calling a global function with example usage: _worker(remote, parent_remote, env_fn_wrapper) without return types