code: def revert_tmp_dir(env=None):
      if not env:
          env = os.environ
  
      if _startup_tmp_dir_set:
          if _startup_tmp_dir is not None:
              env["TMPDIR"] = _startup_tmp_dir
          else:
              env.pop("TMPDIR", None)
          logger.debug("Reset back TMPDIR=%s", env.get("TMPDIR"))
  
file_path: catboost/library/python/tmp/__init__.py
imports: import logging
  import tempfile
  import time
  import os
  import shutil
  import contextlib
  import library.python.fs
  import library.python.unique_id
label_desc: Use image node_id 3 for calling a global function with example usage: revert_tmp_dir(env) without return types