public void AsyncRequestShouldPerformSuccessfully()
 {
     var factory = new RestClientFactory("http://httpbin.org");
     string origin = null;
     factory.GetAsyncWithAction<TestSuccessResponse>(new TestRequestWithSpecifiedOKType(), response =>
     {
         origin = response.Origin;
     });
     factory.WaitForAsync();
     Assert.That(origin, Is.Not.Null);
     Assert.That(origin, Is.Not.Empty);
 }