var handlers = GraphClientFactory.CreateDefaultHandlers(authProvider);
            handlers.Add(new ChaosHandler());

            // Create a customized HttpClient based on these handlers
            HttpClient client = GraphClientFactory.Create(handlers);

            // Create a GraphServiceClient based on the HttpClient
            var graphClient = new GraphServiceClient(client);

var handler = new ChaosHandler(new ChaosHandlerOption()
            {
                KnownChaos = new List<HttpResponseMessage>()
                {
                    ChaosHandler.Create429TooManyRequestsResponse(new TimeSpan(0,0,5)),
                    ChaosHandler.Create500InternalServerErrorResponse(),
                    ChaosHandler.Create503Response(new TimeSpan(0,0,5)),
                    ChaosHandler.Create502BadGatewayResponse()
                }
            });

           Func<HttpRequestMessage, HttpResponseMessage> plannedChaos = (req) =>
             {
                 if (req.RequestUri.OriginalString.Contains("/fail"))
                 {
                     return ChaosHandler.Create429TooManyRequestsResponse(new TimeSpan(0, 0, 5));
                 }
                return null;
             };

            var handler = new ChaosHandler(new ChaosHandlerOption()
            {
                PlannedChaosFactory = plannedChaos
            });