in version 2.9 and earlier, I could subscribe to DescriptionChanged event in Client.Cluster and then later check if DB is connected by examining MongoDB.Driver.Core.Clusters.ClusterDescriptionChangedEventArgs

Please let me know how to re-write the following code to listen to the event again in version 3.0.

// code placeholder
var mongoClient1 = new MongoClient(settings);
var db = _mongoClient1.GetDatabase("myDb);

db.Client.Cluster.DescriptionChanged += Db1ClusterDescriptionChanged;