public void CreateCustomIP()
        {
            TestRuntime.AssertXcodeVersion(11, 0);
            byte ipVersion     = 10;
            var  setUpProtocol = CreateConfigureProtocolHandler();

            using (var parameters = NWParameters.CreateCustomIP(ipVersion, setUpProtocol))
                using (var endpoint = NWEndpoint.Create("wwww.google.com", "80")) {
                    configureEvent.WaitOne();
                    Assert.True(protocolConfigured, "Protocol configure handler was not called.");
                }
        }