Server and Client invalid?

Question

I am trying to figure out how to use Browsermob, Selenium 4 and get the HAR for a URL programatically.  Not sure if anyone can share current way to do this, but all the references I find do not seem to compile.  Like:

 

// Supply the path to the Browsermob Proxy batch file
Server server = new Server(@"C:\temp\browsermob-proxy-2.1.4\bin\BrowserMobProxybinbrowsermob-proxy.bat");
server.Start();
Thread.Sleep(1000);

Client client = server.CreateProxy();
client.NewHar("assertselenium");

var chromeOptions = new ChromeOptions();
var seleniumProxy = new Proxy { HttpProxy = client.SeleniumProxy, SslProxy = client.SeleniumProxy };
chromeOptions.Proxy = seleniumProxy;
var dr = new ChromeDriver(chromeOptions);

dr.Navigate().GoToUrl("http://www.google.com");
dr.FindElementByClassName("gb_e").Click();

Thread.Sleep(3500);
dr.Navigate().Refresh();

// Get the performance stats
HarResult harData = client.GetHar();
Log log = harData.Log;
Entry[] entries = log.Entries;

foreach (var e in entries)
{
Request request = e.Request;
Response response = e.Response;
var url = request.Url;
var time = e.Time;
var status = response.Status;
var testStr = "Url: " + url + " - Time: " + time + " Response: " + status;
}

dr.Quit();
client.Close();
server.Stop();

 The Server and Client errors that the Namespace could not be found.  Tried a number of paths but things like server.Stop() aren't found even if I can find an assembly just to get server.Start() to "look" OK.  Though still think it's the wrong assembly.

 

Get the same for just HarResult, Log, Entry.  Log and Entry I in theory can get to show OK with Grpc but not sure that's really the right reference to use.

 

Thoughts?