Why only one or two channels?

[MarcHagen]

https://github.com/pablodz/pipewire_python/blob/72d17d61470746756aa2b65fe384db579aafe2c3/pipewire_python/controller.py#L356-L362

This piece of code prevents me from playing a multitrack audio file. Why does this check exist? pw-cat is perfectly capable of playing multi tracks with --channels and --channel-map