'Initialize the demo device.'

def __init__(self, name, youtube_id=None, media_title=None, duration=360):

    super().__init__(name)
    self.youtube_id = youtube_id
    self._media_title = media_title
    self._duration = duration
    self._progress = int((duration * 0.15))
    self._progress_updated_at = dt_util.utcnow()
