CBuser::getInstance in 3rd party extension

The following code worked all good in Joomla 3 but it is giving "CBuser not found" error in Joomla 4. I am using this code in my own extension. Please let me know what's the fix for this to work in Joomla 4.

include_once( JPATH_ADMINISTRATOR . '/components/com_comprofiler/plugin.foundation.php' );
cbimport( 'cb.html' );
cbimport( 'language.front' );
outputCbTemplate();

global $_CB_framework, $_PLUGINS, $ueConfig;
$cbUser = CBuser::getInstance( $result, false );

That should still work fine and is how CB API is loaded into our Joomla modules. See the below tutorial which is still valid for including CB API externally.

www.joomlapolis.com/documentation/279-community-builder/tutorials/18357-including-cb-api-for-usage-outside-of-cb

If you're calling that in a PHP file with a namespace you need to either add a user statement for CBuser or prefix it with \ though.