using System;

using System.Net.Http;

using System.Threading.Tasks;

​

public class Program

{

    public static async Task Main()

    {

        Console.WriteLine( Environment.OSVersion.Version );

        var client = CreateClient();

        var response = await client.GetAsync("https://httpbin.org/get");

    }

    public static HttpClient CreateClient()

    {

        using var client = new HttpClient();

        return client;

    }

}