Is there an way to accept only the fields that match a certain pattern?

I am thinking something like this:
Suppose I have some Image fields like v1,v2,v3... Now the number of such fields cannot be determined in advance so it would be nice to have the multer.fields([]) funciton to also work like this:-
multer.fields([{name: /^v\d+$/, maxCount: 1}])

Start with the existing multer.fields entry point and its field-name validation behavior. Check how unknown field names and maxCount are currently handled, then determine the expected behavior for a regular-expression field name and add coverage for the requested pattern-matching case. Done means the API accepts fields matching the pattern while preserving existing field limits and behavior.

Written by the indexing model from the issue text.