putRecords method
Implementation
@override
void putRecords(Map<String, Map<String, Record>> dataset) {
dataset.forEach((table, records) {
_recordMaps[table]!.addAll(records);
records.forEach((key, record) => _changeControllers[table]!
.add((key: key, value: record.value, isDeleted: record.isDeleted)));
});
}