using System.IO; // Create a new MemoryStream. MemoryStream stream = new MemoryStream(); // Create a new instance of GenericWriter. GenericWriter writer = new GenericWriter(stream); // Write a type to the stream. Type type = typeof(int); writer.WriteType(type);In this example, we create a new MemoryStream and then create a new instance of GenericWriter, passing in our MemoryStream as the parameter. We then define a Type object as the integer type, and finally call the WriteType method on our writer instance, passing in the type we defined. This code example is likely part of a larger serialization or deserialization process, and the package library being used is likely part of the .NET Framework.