Preview:
enum class PaymentOption {
    CASH,
    CARD,
    TRANSFER
}

fun PaymentOption.startPayment(transaction: TransactionData) {
    when (this) {
        PaymentOption.CASH -> showCashPaimentInfo(transaction)
        PaymentOption.CARD -> moveToCardPaymentPage(transaction)
        PaymentOption.TRANSFER -> {
            showMoneyTransferInfo()
            setupPaymentWatcher(transaction)
        }
    }
}
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