using System.Reflection; // Get the current assembly Assembly currentAssembly = Assembly.GetExecutingAssembly(); // Retrieve all the types in the current assembly Type[] allTypes = currentAssembly.GetAllTypes(); // Loop through all the types and print their names foreach (Type type in allTypes) { Console.WriteLine(type.FullName); }This code retrieves the current assembly using the `Assembly.GetExecutingAssembly()` method and then calls the `GetAllTypes()` method to retrieve an array of all the types in the assembly. Finally, the code loops through all the types and prints their full names to the console. The package library for this example could be the System.Reflection namespace as it provides the Assembly and Type classes which are used in the example.