using System;

using System.IO;

using System.Collections.Generic;

using YamlDotNet.Serialization;

public class Program

{

    public static void Main()

    {

        var buffer = new StringWriter();

        var serializer = new Serializer();

        serializer.Serialize(buffer, new Model

        {

            DefaultProviders = new Dictionary<TransportType, String>

            {

                { TransportType.Email, "by-email" },

                { TransportType.Sms, "by-sms" },

            }

        });

        Console.WriteLine(buffer.ToString());

        var deserializer = new Deserializer();

        var model = deserializer.Deserialize<Model>(new StringReader(buffer.ToString()));

        model.Dump();

    }

    public class Model

    {

        public Dictionary<TransportType, String> DefaultProviders

        {

            get;

            set;

        }

    }

    public enum TransportType

    {

        Email,

        Sms,

        Push

    }

}