code: def host_dir(container_dir: str):
      """Replace local dir with potentially different host dir.
  
      E.g. in docker-in-docker environments, the host dir might be
      different to the mounted directory in the container.
  
      This method will do a simple global replace to adjust the paths.
      """
      ray_tempdir = os.environ.get("RAY_TEMPDIR", None)
      ray_hostdir = os.environ.get("RAY_HOSTDIR", None)
  
      if not ray_tempdir or not ray_hostdir:
          return container_dir
  
      return container_dir.replace(ray_tempdir, ray_hostdir)
  
imports: import copy
  import json
  import logging
  import os
  import subprocess
  import sys
  import time
  from threading import RLock
  from types import ModuleType
  from typing import Any, Dict, Optional
  import yaml
  import ray
  import ray._private.ray_constants
  from ray.autoscaler._private.fake_multi_node.command_runner import FakeDockerCommandRunner
  from ray.autoscaler.command_runner import CommandRunnerInterface
  from ray.autoscaler.node_provider import NodeProvider
  from ray.autoscaler.tags import NODE_KIND_HEAD, NODE_KIND_WORKER, STATUS_UP_TO_DATE, TAG_RAY_NODE_KIND, TAG_RAY_NODE_NAME, TAG_RAY_NODE_STATUS, TAG_RAY_USER_NODE_TYPE
label_desc: Use image node_id 1 for calling a global function with example usage: host_dir(container_dir) and returns: container_dir, container_dir