gistfile1.clj

;works :
=>(-> 
    (rpc/get [1234])
    (map-project [:product_id :product_version_id])
    (rename-keys {:product_id :product, :product_version_id :product_version}))
{:product 313, :product_version 1416}

;doesn't
=>  (-> 
       (rpc/get [1234])
       (map-project [:product_id :product_version_id])
       (rename-keys {:product_id :product, :product_version_id :product_version})
       (fn [a] (print a) a))
CompilerException java.lang.IllegalArgumentException: Parameter declaration clojure.core/-> should be a vector, compiling:(NO_SOURCE_PATH:1:3)