//.NET 7 includes C# 11, which comes with many new enhancements

// read about it here: https://medium.com/entech-solutions/new-features-in-c-11-net-7-with-interactive-examples-c8e4e5ea1e5a

​

using System;

​

// Before C# 11

​

[TypeAttribute(typeof(string))]

static string SomeMethod() => default;

​

public class TypeAttribute : Attribute

{

    public TypeAttribute(Type t) => ParamType = t;

    public Type ParamType { get; } 

}