using MongoDB.Bson; using MongoDB.Bson.IO; // Create a BsonReader object from a BSON string var bsonReader = new BsonReader(BsonDocument.Parse("{ name: 'John' }")); // Read the BSON type of the current element BsonType bsonType = bsonReader.GetCurrentBsonType(); // Output the BSON type Console.WriteLine($"Current BSON type is {bsonType}");In this example, we are creating a BsonReader object from a BSON string containing a single element "name: 'John'". We then call the GetCurrentBsonType method to retrieve the current BSON type (in this case, a BsonType.String). Finally, we output the BSON type to the console. The MongoDB.Bson.IO namespace is part of the MongoDB BSON library, which provides BSON serialization and deserialization support for .NET applications using MongoDB.