toMap method
Implementation
Map<String, dynamic> toMap() => {
'isActive': isActive,
'planName': planName,
'priceId': priceId,
'interval': interval,
'status': status,
'currentPeriodEnd':
currentPeriodEnd?.millisecondsSinceEpoch,
'trialEnd': trialEnd?.millisecondsSinceEpoch,
};