This code fails pylint review with pylint 2.7.0 (on Python 3.9). ```python playlist = m3u8.load(playlist_path) playlist.is_endlist ``` raises `E1101: Instance of 'M3U8' has no 'is_endlist' member (no-member)` I suppose it would happen with all [simple_attributes](https://github.com/globocom/m3u8/blob/master/m3u8/model.py#L130).