def METHOD_NAME(self) -> list[Ref]:
    result = []
    for entry in self._playlists_dir.iterdir():
        if entry.suffix not in [".m3u", ".m3u8"]:
            continue
        if not entry.is_file():
            continue
        playlist_path = entry.relative_to(self._playlists_dir)
        result.append(translator.path_to_ref(playlist_path))
    result.sort(key=operator.attrgetter("name"))
    return result