code: def start_indexing_thread(self):
      logger.info(
          f"Starting indexing thread for repo '{self.repo_path}'"
      )
      self._reindex_thread = Thread(
          target=self._run_forever, daemon=True
      )
      self._reindex_thread.start()
  
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 5 for calling the RepoIndexManager obj's underlying member method code with example usage: obj.start_indexing_thread() without return types