class_docstr: Syncer using a background process for asynchronous file transfer.
class_docstr_tok: ["Syncer","using","a","background","process","for","asynchronous","file","transfer","."]
code: def wait(self):
      if self._sync_process:
          try:
              self._sync_process.wait(timeout=self.sync_timeout)
          except Exception as e:
              raise e
          finally:
              # Regardless of whether the sync process succeeded within the timeout,
              # clear the sync process so a new one can be created.
              self._sync_process = None
  
imports: import abc
  import logging
  import threading
  import time
  import traceback
  import warnings
  from dataclasses import dataclass
  from typing import Any, Callable, Dict, List, Optional, Tuple, Union
  from ray._private.thirdparty.tabulate.tabulate import tabulate
  from ray.train.constants import _DEPRECATED_VALUE
  from ray.util import log_once
  from ray.util.annotations import PublicAPI
  from ray.widgets import Template
label_desc: Use image node_id 10 for calling the _BackgroundSyncer obj's underlying member method code with example usage: obj.wait() without return types