code: def lock_index(self, lock: RefreshLock):
      try:
          self._safe_acquire_lock(lock)
          yield
      finally:
          lock.release()
  
imports: import contextlib
  import time
  import datetime
  import pytz
  import logging
  import os
  from threading import Thread
  from pathlib import Path
  from typing import Iterable
  from aim.sdk.repo import Repo
  from aim.sdk.run_status_watcher import Event
  from aim.storage.locking import RefreshLock
label_desc: Use image node_id 11 for calling the RepoIndexManager obj's underlying member method code with example usage: obj.lock_index(lock) without return types