public override void Visit(CosmosDiagnosticsContext cosmosDiagnosticsContext)
            {
                Assert.IsFalse(this.isContextVisited, "Point operations should only have a single context");
                this.isContextVisited = true;
                this.StartTimeUtc     = cosmosDiagnosticsContext.StartUtc;
                this.TotalElapsedTime = cosmosDiagnosticsContext.GetClientElapsedTime();

                DiagnosticValidator.ValidateCosmosDiagnosticsContext(cosmosDiagnosticsContext);

                foreach (CosmosDiagnosticsInternal diagnosticsInternal in cosmosDiagnosticsContext)
                {
                    diagnosticsInternal.Accept(this);
                }
            }
            public override void Visit(CosmosDiagnosticsContext cosmosDiagnosticsContext)
            {
                this.isContextVisited = true;
                this.StartTimeUtc     = cosmosDiagnosticsContext.StartUtc;
                this.TotalElapsedTime = cosmosDiagnosticsContext.GetClientElapsedTime();

                // Buffered pages are normal and have 0 request. This causes most validation to fail.
                if (cosmosDiagnosticsContext.TotalRequestCount > 0)
                {
                    DiagnosticValidator.ValidateCosmosDiagnosticsContext(cosmosDiagnosticsContext);
                }

                foreach (CosmosDiagnosticsInternal diagnosticsInternal in cosmosDiagnosticsContext)
                {
                    diagnosticsInternal.Accept(this);
                }
            }
        internal static void ValidateCosmosDiagnosticsContext(
            CosmosDiagnosticsContext cosmosDiagnosticsContext)
        {
            Assert.IsTrue((cosmosDiagnosticsContext.StartUtc - DateTime.UtcNow) < TimeSpan.FromHours(12), $"Start Time is not valid {cosmosDiagnosticsContext.StartUtc}");
            Assert.AreNotEqual(cosmosDiagnosticsContext.UserAgent.ToString(), new UserAgentContainer().UserAgent.ToString(), "User agent not set");
            Assert.IsTrue(cosmosDiagnosticsContext.TotalRequestCount > 0, "No request found");
            Assert.IsFalse(cosmosDiagnosticsContext.IsComplete(), "OverallClientRequestTime should be stopped");
            Assert.IsTrue(cosmosDiagnosticsContext.GetClientElapsedTime() > TimeSpan.Zero, "OverallClientRequestTime should have time.");

            string info = cosmosDiagnosticsContext.ToString();

            Assert.IsNotNull(info);
            JObject jObject = JObject.Parse(info.ToString());
            JToken  summary = jObject["Summary"];

            Assert.IsNotNull(summary["UserAgent"].ToString());
            Assert.AreNotEqual(summary["UserAgent"].ToString(), new UserAgentContainer().UserAgent);
            Assert.IsNotNull(summary["StartUtc"].ToString());
            Assert.IsNotNull(summary["TotalElapsedTime"].ToString());
        }