Sorry to bother on this, but is it possible to access Kamailio transformations in KEMI, and if so, how?

In Kamailio’s native scripting language I could do:

    $var(pai_user) = $(hdr(P-Asserted-Identity){tobody.user});

In KEMI, I can easily get the full header like this:

    KSR.hdr.get("P-Asserted-Identity")

But I don’t see how to access the transformations.  Am I missing it?

Ben Kaufman