úÎFGportable provisionalsimons@cryp.toEvaluate a stream processor. +Use a monadic transformer to map a stream. A generic stream processor. '  !"#$%&'                            ! " # $ % & ' ()streamproc-1.0Control.Arrow.SPrunSPmapSPSPBlockGetPutbase Control.Arrowarr>>>firstapp|||loop&&&***secondpureArrow runKleisliKleisli zeroArrow ArrowZero<+> ArrowPlus+++rightleft ArrowChoice ArrowApply ArrowMonad ArrowLoopleftApp^<<<<^<<<>>^^>>returnA