Palo Alto PanOS Storage Missing

Have a few paloalto devices in our network and we are looking to monitor the buffers which are supplied under the common storage hrStorageTable

Given this I was surprised it wasn’t already being polled. Instead, Librenms appears to only populate memory and fixed disks from this table while the buffers are reported as type: hrStorageOther

I tried adding a load sensor instead without success. I’m happy to fix the storage portion for PanOs but it’s not really clear in the documentation how and where to do that and if it will impact the existing yaml configs. Specifically the documentation mentions needing to simply add to includes/discovery/sensors/$class/$os.inc.php

Is this accurate?