I looked through the documentation but I am not able to figure out how to pass ORDS' session context, i.e. current user, role, etc., to Oracle procedure/package/function. The documentation has references to procedure.preProcess and procedure.postProcess but ORDS don't seem to pass any parameters to those procedures. Without the session context, we can't use Oracle VPD, hence we can't use ORDS as a generic RESTful data service. I appreciate any help.