mongodb BulkWriteResult c#

var collection = database.GetCollection<BsonDocument>("myCollection");
var bulkWriteOptions = new BulkWriteOptions { IsOrdered = false };
var bulkWrites = new List<WriteModel<BsonDocument>>
{
    new InsertOneModel<BsonDocument>(new BsonDocument("_id", 1)),
    new UpdateOneModel<BsonDocument>(new BsonDocument("_id", 2), new BsonDocument("$set", new BsonDocument("x", 2))),
    new DeleteOneModel<BsonDocument>(new BsonDocument("_id", 3))
};
var bulkWriteResult = collection.BulkWrite(bulkWrites, bulkWriteOptions);

Console.WriteLine("Matched count: " + bulkWriteResult.MatchedCount);
Console.WriteLine("Modified count: " + bulkWriteResult.ModifiedCount);
Console.WriteLine("Deleted count: " + bulkWriteResult.DeletedCount);
Console.WriteLine("Inserted count: " + bulkWriteResult.InsertedCount);
Console.WriteLine("Is acknowledged: " + bulkWriteResult.IsAcknowledged());