virtual [TOptional](API\Runtime\Core\IO\TOptional)< [FInstallBundleCacheStats](API\Runtime\InstallBundleManager\FInstallBundleCacheStats) > GetCacheStats ( FInstallBundleSourceOrCache SourceOrCache, EInstallBundleCacheDumpToLog DumpToLog, [ELogVerbosity::Type](API\Runtime\Core\Logging\ELogVerbosity__Type) LogVerbosityOverride )