Clojurians Log v2

Is it possible to override generator for fdef, e.g. when instrument+`:stub`, so that ret generator depends on args generator?

(defn ranged-rand
  [start end]
  (+ start (long (rand (- end start)))))

(defn start=start? [{:keys [args  ret]}] (>= ret (:start args)))
(defn ret=start? ret