namespace ConsoleApplication3

{

    using System;

    using System.Threading;

​

    using RestSharp;

​

    public class Program

    {

        public static async void Main()

        {

            var client = new RestClient();

            var request = new RestRequest("http://www.google.com");

            var cancellationTokenSource = new CancellationTokenSource();

​

            var restResponse = await client.ExecuteTaskAsync(request, cancellationTokenSource.Token);

​

            Console.WriteLine(restResponse.Content.Length);

        }

    }

}