Tiny types without value class

User.scala

case class UserId(id: Int)

case class Username(name: String)

case class TweetId(id: Int)

case class TweetContent(content: String)

case class User(id: UserId, name: Username)

case class Tweet(id: TweetId, content: TweetContent)

object Test extends App {
  val user = User(UserId(1), Username("kunal"))

  val tweet = Tweet(TweetId(11), TweetContent("ABC"))

  println("userID :-" + user.id)
  println("tweetID:-" + tweet.content)
}