Diskstats collection negation regex not working

Host operating system: output of uname -a

Linux

node_exporter version: output of node_exporter --version

0.16.0

node_exporter command line flags

--collector.diskstats.ignored-devices

Are you running node_exporter in Docker?

No

What did you do that produced an error?

I am trying to collect diskstats using node_exporter. Currently there are multiple devices on the machine. I only want to collect the stats of devices with a particular naming pattern. The issue here is that the naming convention for the other devices that i don't want stats to be collected for is not known. Is there any other way to do so?
Or is there a plan to include a flag for device inclusion instead of ignored devices?

What did you expect to see?

What did you see instead?

Start by reproducing the diskstats collection behavior with the reported ignored-devices flag and inspect the diskstats collector's regex handling. The issue does not provide the regex, expected output, observed output, or named files and tests; done would require a reproducible pattern-matching behavior and a verified fix or documented limitation.