Microsoft.Azure.WebJobs.Script.WebHost.Diagnostics.MetricsEventManager.FunctionStarted C# (CSharp) Method

        internal void FunctionStarted(FunctionStartedEvent startedEvent)
        {
            lock (_functionActivityTrackerLockObject)
            {
                if (instance == null)
                {
                    instance = new FunctionActivityTracker(_eventGenerator, _functionActivityFlushIntervalSeconds);
                }
                instance.FunctionStarted(startedEvent);
            }
        }

 public void BeginEvent(MetricEvent metricEvent)
 {
     if (metricEvent is FunctionStartedEvent startedEvent)
     {
         startedEvent.Timestamp = DateTime.UtcNow;
         _metricsEventManager.FunctionStarted(startedEvent);
     }
 }