CapybaraGenerator.scala

trait Generator[A] {
  def gen: A
}

case class Capybara(name: String, age: Int, tasty: Boolean)

object Generator {
  import scala.util.Random

  def generate[A](implicit gen: Generator[A]): A = gen.gen

  implicit val capybaraGenerator = new Generator[Capybara] {
    override def gen: Capybara = Capybara(
      name = Random.nextString(10),
      age = Random.nextInt(50),
      tasty = Random.nextBoolean()
    )
  }
}