So I checked on the language options, you should be able to create a media object for multiple language options with the following example code:
MediaObject( video_codec = VideoCodec.H264, audio_codec = AudioCodec.AAC, container = Container.MP4, audio_channels = 2, parts = [ PartObject( streams=[ AudioStreamObject( key=audiostream_url, language_code=Locale.Language.English ), AudioStreamObject( key=audiostream_url2, language_code=Locale.Language.French ) ] ) ] )
