sample.scala

object sample {

  trait RandomGenerator {

    def generate(): AnyVal

  }

  object IntGenerator extends RandomGenerator {

    override def generate(): Int = 10

  }

  object ByteGenerator extends RandomGenerator {

    override def generate(): Byte = 44

  }

  val int = IntGenerator.generate() //> int  : Int = 10

  val byte = ByteGenerator.generate() //> byte  : Byte = 44
}