void AddInstanceItemToTree ( [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< FSessionBrowserTreeItem > & SessionItem, const [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< FSessionBrowserTreeItem > & InstanceItem, const [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [ISessionInstanceInfo](API\Runtime\SessionServices\ISessionInstanceInfo) > & InstanceInfo )