How to use C# Code to List all Namespaces in .NetStandard Library in a .Net Standard Project

How to use C# Code to List all Namespaces in .NetStandard Library 2.0 from within a .Net Standard Project.

This is the Code which gives Namspaces in netStandard Library is 0;

            foreach (AssemblyName fooAssemblyName in Assembly.GetExecutingAssembly().GetReferencedAssemblies())
            {
                Assembly assembly = Assembly.Load(fooAssemblyName.FullName);
                var namespaces = assembly.GetTypes()
                    .Select(t => t.Namespace).Where(t => !string.IsNullOrEmpty(t))
                    .Distinct();
                int count = namespaces.Count();
                if (fooAssemblyName.Name == "netstandard")
                {
                    Console.WriteLine(count); // THIS GIVES 0 for .Net Standard Library
                }
            }