example.scala

object Main extends App{
  trait Addable[T] {
    def add(a:T) : T 
  }

  implicit object CreatableInt extends Addable[Int]{
    def add(a:Int) : Int = a + 3
  }

  implicit object CreatableString extends Addable[String] {
    def add(a:String) : String = a + "pa"
  }

  def createValue[T](a:T)(implicit value: Addable[T]) : T = value.add(a)


  val a = createValue(10)
  println(a)
  val b = createValue("hey")
  println(b)
}