BillingAppliedDiscount
constructor(amount: BillingMoneyAmount, discountId: String, name: String, effect: BillingDiscountEffect = BillingDiscountEffect.UNKNOWN, percentOff: Double? = null, amountOff: BillingMoneyAmount? = null, promoCode: String? = null, cyclesRemaining: Int? = null, durationInCycles: Int? = null)