@property
    def media_playlist(self):
        return None
Pubdate for a particuar version  (<item><pubDate>)
dataset/ETHPy150Open home-assistant/home-assistant/homeassistant/components/media_player/__init__.py/MediaPlayerDevice.media_playlist--crossover with--dataset/ETHPy150Open mozilla/addons-server/src/olympia/versions/feeds.py/VersionsRss.item_pubdate