why.clj

(defmacro phase-fn
  ([argvec] `(phase-fn ~argvec identity))
  ([argvec func & more]
     `(fn [session# ~@argvec]
        (-> session#
            ~(if (seq more)
               `(phase-fn ~argvec ~@more)
               `(check-session (str "The session passed into " '~func)))
            ~func))))


;; Why am I getting this sequence after fn?
(fn* ([session__26526__auto__ x]
        (clojure.core/-> session__26526__auto__
                         (pallet.crate.hadoop/phase-fn [x] (+ 1 2))
                         (+ 2 x))))