scala cats - How to transform a Kleisli[Try, I, A] into I => A -


is there existing combinator or better way write ?

def combine[i, a](k: kleisli[try, i, a], default: a) : => =   k.run.andthen(_.getorelse(default))

it possible mapping on monadic value using identity:

def combine[i, a](k: kleisli[try, i, a], default: a): => =   k.mapf[id, a](_.getorelse(default)).run

example:

scala> val div = kleisli[try, int, string](x => try(1000 / x).map(_.tostring)) div: cats.data.kleisli[scala.util.try,int,string] = kleisli(<function1>)  scala> combine(div, "good")(10) res0: string = 100  scala> combine(div, "division zero")(0) res1: string = division 0

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