code: def __init__(self, tmp_dir: str):
      # _ray_tmp_dir will be mounted into container, so the worker process
      # can connect to raylet.
      self._ray_tmp_dir = tmp_dir
  
imports: import os
  import logging
  from typing import Optional
  from ray._private.runtime_env.context import RuntimeEnvContext
label_desc: Use image node_id 1 to create a new ContainerManager object  with example: obj = ContainerManager(tmp_dir)