saveFailure method Null safety
Implementation
Future<bool> saveFailure(Snapshot o, Snapshot n) async {
await o.save(options);
await n.save(options, asNew: true);
return true;
}
Future<bool> saveFailure(Snapshot o, Snapshot n) async {
await o.save(options);
await n.save(options, asNew: true);
return true;
}