Given the following code

sealed trait Fruit

case class Apple(color: String) extends Fruit
case class Orange(color: String) extends Fruit

def getAppleColor(apple: Apple) = apple.color
def getOrangeColor(orange: Orange) = orange.color

val myMap: Map[String, Fruit] = Map(
"myApple" -> Apple("red"),
"myOrange" -> Orange("orange"),
)

val myMapOfFunctions: Map[String, Apple with Orange => String]  = Map(
"myAppleColorFun" -> getAppleColor,
"myOrangeColorFun" -> getOrangeColor,
)

Why myMapOfFunctions is not a Map[String, Fruit => String] similarly to myMap? I guess because it is about functions but I’d like better to understand why. Thanks!