FYI, this works for me: ``` class Card { class...
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c
FYI, this works for me:
Copy code
class Card {
    class Trump(value: Int)
}

fun f() {
    val cards = arrayListOf<Card.Trump>()
    cards += (1..21).map { Card.Trump(it) }
    cards += (1..21).map(Card::Trump)
}