void PersistentTimingStatsBegin ( [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [FContentRequest](API\Plugins\DefaultInstallBundleManager\FDefaultInstallBundleManager\FContentRequest) > ContentRequest, [InstallBundleUtil::PersistentStats::ETimingStatNames](API\Runtime\InstallBundleManager\InstallBundleUti-) TimerStatName )