Extract return type of Function3

gistfile1.scala

      def f(a:Int, b:String, c:Int) : Unit = {}

      val f3 = f(_, _, _)

      for(m <- f3.getClass.getDeclaredMethods.find(m => m.getName == "apply" && !m.isSynthetic)) {
        val retType = m.getReturnType
        info(s"f3 class: ${f3.getClass.getName}")
        info(s"return type of f3: $retType")
      }