commitUint64List method
Implementation
Future<bool> commitUint64List(List<int> l, String target) async {
//conv into binary
if (db == null) return false;
final d = Uint64binaryList(l);
dataPushedDisk += d.lengthInBytes;
await _appCachesCapBox.put(target, d);
print('[DB] prefs commit DONE');
//_ubox.close();
return true;
//print(u.binary.sublist(64, 132));
}