using System;

using System.Net.Http;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

         var request = new System.Net.Http.HttpRequestMessage();

        request.Headers.Add("Authorization", "go-api:apikey_for_chuck");

        request.Headers.TryAddWithoutValidation("Authorization", "go-api:apikey_for_chuck");

    }

}