code: def cleanup(self, infofile: Optional[str] = None):
      super().cleanup(infofile)
      if infofile:
          remove(os.path.dirname(infofile))
      with self._detach_stack:
          self.scm.remove_ref(EXEC_BASELINE)
          self.scm.remove_ref(EXEC_MERGE)
          if self.scm.get_ref(EXEC_BRANCH):
              self.scm.remove_ref(EXEC_BRANCH)
  
imports: import os
  from contextlib import ExitStack
  from tempfile import mkdtemp
  from typing import TYPE_CHECKING, Optional, Union
  from configobj import ConfigObj
  from funcy import retry
  from shortuuid import uuid
  from dvc.lock import LockError
  from dvc.log import logger
  from dvc.repo.experiments.refs import EXEC_BASELINE, EXEC_BRANCH, EXEC_HEAD, EXEC_MERGE, EXEC_NAMESPACE, TEMP_NAMESPACE
  from dvc.repo.experiments.utils import EXEC_TMP_DIR, get_exp_rwlock
  from dvc.scm import SCM, Git
  from dvc.utils.fs import remove
  from dvc.utils.objects import cached_property
  from .base import BaseExecutor, TaskStatus
label_desc: Use image node_id 5 for calling the WorkspaceExecutor obj's underlying member method code with example usage: obj.cleanup(infofile) without return types