code: def _check(self):
      if (
          not os.path.exists(self.updater_file)
          or self._is_outdated_file()
      ):
          self.fetch()
          return
  
      with open(self.updater_file, encoding="utf-8") as fobj:
          import json
  
          try:
              info = json.load(fobj)
              latest = info["version"]
          except Exception as e:  # noqa: BLE001
              logger.trace("", exc_info=True)
              logger.debug(
                  "'%s' is not a valid json: %s", self.updater_file, e
              )
              self.fetch()
              return
  
      if version.parse(self.current) < version.parse(latest):
          self._notify(latest)
  
file_path: dvc/dvc/updater.py
imports: import os
  import time
  from typing import TYPE_CHECKING, Optional
  from packaging import version
  from dvc import PKG, __version__
  from dvc.env import DVC_UPDATER_ENDPOINT
  from dvc.log import logger
label_desc: Use image node_id 5 for calling the Updater obj's underlying member method code with example usage: obj._check() without return types