toJson method
Implementation
@override
Object toJson() => {
if (rowSynced.isNotDefault) 'rowSynced': rowSynced.toString(),
if (totalSlot.isNotDefault) 'totalSlot': totalSlot.toString(),
if (systemWatermarkTime case final systemWatermarkTime?)
'systemWatermarkTime': systemWatermarkTime.toJson(),
};