data class User(val id: String, val name: String, val age: Int)

//Usage
val user = User("someid", "User Name", 45)

println(user.toString(()) //Prints: User(id="someid", name="User Name", age=45)

val (id, name) = user
println(id) //Prints: someid
println(name) //Prints: User Name

val newUser = user.copy(name = "New Name")
println(newUser) //Prints:  User(id="someid", name="New Name", age=45)