QFT.
Sure, that's very clear if you read what she wrote, and what others (Lytov, Weisband, etc) have said and written about it. Jung was the starting point, not the end-all. The problem is that, since Augusta diverted from Jung according to her own purposes and views and observations, there are indeed, still, many resemblances between Jung's views of functions and Augusta's. And some people - for many reasons - seem to find Jung's descriptions appealing and resonating with their own impressions, so they take the path of saying that Jung's descriptions are the "true" socionics ones. Which is incomprehensible to me, since they should then just say that they are following Jung's typology (or creating yet another one based on it) rather than they are using "socionics".