Handling of Pentax pixel shift raw files?

[lage]

I tried to get in touch with devs through this form:
https://pixinsight.com/contact/index.html#Contact_Form
Since i didn´t got any response, i try here instead.
How should Pentax pixel shift raw files be handled in PI?
These raw´s have the full color info for each pixel, so they can´t be debayered as normal DSLR raws i assume?

If you haven´t heard about pixel shift:
https://www.youtube.com/watch?v=gIGqwxEdU4I
https://www.pentaxforums.com/articles/photo-articles/how-pentax-k-3-ii-pixel-shifting-works.html

BR,
Lage