Want to define a function at master node repl, have it accessible in query

gistfile1.clj

(defn get-max
  [v]
  (apply max (flatten v)))

(let [src (hfs-seqfile "s3n://formaresults/finaloutput/*")]
         (??<- [?count]
               (src ?s-res ?mod-h ?mod-v ?s ?l ?prob-series)
               (get-max ?prob-series :> ?max)
               (>= ?max 0.5)
               (c/count ?count)))