class_docstr: Wrapper for multiprocessing Pool that wraps function.
class_docstr_tok: ["Wrapper","for","multiprocessing","Pool","that","wraps","function","."]
code: def imap_unordered(self, *args, **kwargs):
      raise NotImplementedError(
          "imap_unordered not implemented; try map"
      )
  
imports: import multiprocessing
  from typing import Text
  import cloudpickle
  import gin
  import gym
  from tf_agents.system.default import multiprocessing_core
  from tf_agents.system.default.multiprocessing_core import *
label_desc: Use image node_id 7 for calling the _PoolWrapper obj's underlying member method code with example usage: obj.imap_unordered() without return types