Multiple implicit parameters use case

gistfile1.scala

object MainRouter {
  implicit val session: Option[Session]
  implicit val flash: ...
  
  runRoutes {
    UserController.routes
    OtherController.routes
  }
}

object UserController {
  lazy val routes = {
        (implicit flash: Flash, maybeSession: Option[Session]) => {
          ... routes
        }
  }
}

object OtherController {
  lazy val routes = {
        (implicit flash: Flash) => {
          ... routes
        }
  }
}