class_docstr: Simply watches the existence of the lock file.
code: def _release(self):
      os.close(self._lock_file_fd)
      self._lock_file_fd = None
      try:
          os.remove(self._lock_file)
      except (
          OSError
      ):  # the file is already deleted and that's what we want
          pass
  
file_path: catboost/contrib/python/filelock/py2/filelock/_soft.py
imports: import os
  import sys
  from errno import EACCES, EEXIST, ENOENT
  from ._api import BaseFileLock
  from ._util import raise_on_exist_ro_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