public void SaveOptimizerStates(string fname)
{
if (!OptimizerInitialized)
{
throw new Exception("Optimizer not initialized");
}
if (_update_on_kvstore.HasValue && _update_on_kvstore.Value)
{
_kvstore.SaveOptimizerStates(fname);
}
else
{
File.WriteAllText(fname, _updater.GetStates());
}
}