virtual void EnumerateEventsDownSampledAsync ( const typename [ITimeline](API\Developer\TraceServices\TraceServices\Containers\ITimeline)< [EventType](API\Developer\TraceServices\Model\TMonotonicTimeline\EventType) >::[EnumerateAsyncParams](API\Developer\TraceServices\TraceServices\Containers\ITimeline\EnumerateAsyncPa-) & EnumerateAsyncParams ) const