'Add files to the queue - this should be a list of youtube_ids
and optionally, the language of the video.'

def add_files(self, files, language=None):

    files = [{'youtube_id': key, 'title': value, 'language': language} for (key, value) in files.items()]
    files.extend(self.queue)
    self.queue = files
    self.save()
