BillingSubscriptionItem
constructor(id: String, plan: BillingPlan, planPeriod: BillingSubscriptionPlanPeriod = BillingSubscriptionPlanPeriod.UNKNOWN, priceId: String? = null, status: BillingSubscriptionStatus = BillingSubscriptionStatus.UNKNOWN, createdAt: Long? = null, pastDueAt: Long? = null, periodStart: Long? = null, periodEnd: Long? = null, canceledAt: Long? = null, amount: BillingMoneyAmount? = null, nextPayment: BillingSubscriptionItemNextPayment? = null, credit: BillingSubscriptionItemCredit? = null, credits: BillingCredits? = null, appliedDiscount: BillingDiscountRedemption? = null, seats: BillingSubscriptionItemSeats? = null, isFreeTrial: Boolean = false)