Engine engine = new Engine("EngineName", @"path\to\engine\binary");
await engine.Start();
await engine.IsReady();
var options = await engine.GetOptions();
await engine.SetOption("Threads", 4);
await engine.SetOption("MultiPV", 4);
await engine.Send("ucinewgame");
await engine.Send("go");
await Task.Delay(2000);
await engine.Send("stop");
await engine.IsReady();
var info = engine.GetInfo();

for (int i = 0; i < info.PvInfos.Count; i++)
{
    var pvInfo = info.PvInfos[i];
    Evaluation eval = new Evaluation(pvInfo.Score, pvInfo.Mate, false);
    Console.WriteLine($"pvInfo{i} - move: {pvInfo.Moves[0]}; eval: {eval}");
}
engine.Dispose();