using System;

using System.Collections.Generic;

​

static class F

{

    public static void M<T>(this IEnumerable<T> enumeration, Action<T> action)

    {

    }

​

    static void U(C.K d)

    {

        d.M(kvp => Console.WriteLine(kvp));

    }

}

​

class C

{

    public class K : Dictionary<string, dynamic>

    {

    }

}