TransformerIterator.createMulti

functionsince v1.9.562 clojure.lang/TransformerIterator.createMultiEdit
(TransformerIterator.createMulti xform sources)

Source code @ clojurescript:src/main/cljs/cljs/core.cljs
(set! (.-createMulti TransformerIterator)
  (fn [xform sources]
    (transformer-iterator xform (MultiIterator. (to-array sources)) true)))