toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (accountId != null) 'accountId': accountId!,
if (confirmationCode != null) 'confirmationCode': confirmationCode!,
if (purchaseDateTime != null) 'purchaseDateTime': purchaseDateTime!,
if (purchaseReceiptNumber != null)
'purchaseReceiptNumber': purchaseReceiptNumber!,
if (ticketCost != null) 'ticketCost': ticketCost!,
};