class_docstr: Simply watches the existence of the lock file.
code: def _release(self) -> None:
      assert self._context.lock_file_fd is not None  # noqa: S101
      os.close(
          self._context.lock_file_fd
      )  # the lock file is definitely not None
      self._context.lock_file_fd = None
      with suppress(
          OSError
      ):  # the file is already deleted and that's what we want
          Path(self.lock_file).unlink()
  
file_path: catboost/contrib/python/filelock/py3/filelock/_soft.py
imports: from __future__ import annotations
  import os
  import sys
  from contextlib import suppress
  from errno import EACCES, EEXIST
  from pathlib import Path
  from ._api import BaseFileLock
  from ._util import ensure_directory_exists, raise_on_not_writable_file
label_desc: Use image node_id 2 for calling the SoftFileLock obj's underlying member method code with example usage: obj._release() without return types