def to_file(self, filepath: PathLike) -> None:
        """Write the contents of the reflog instance to a file at the given filepath.

        :param filepath:
            Path to file. Parent directories are assumed to exist.
        """
        lfd = LockedFD(filepath)
        assure_directory_exists(filepath, is_file=True)

        fp = lfd.open(write=True, stream=True)
        try:
            self._serialize(fp)
            lfd.commit()
        except BaseException:
            lfd.rollback()
            raise
        # END handle change
Write the contents of the reflog instance to a file at the given filepath.

        :param filepath:
            Path to file. Parent directories are assumed to exist.
        
git/refs/log.py