Add extra generated checks for attributes

[lawrence-mbf]

Fixes #498

Motivation

See #498

How to test the behavior?

#498 (comment)

Checklist

• Have you ensured the PR description clearly describes the problem and solutions?
• Have you checked to ensure that there aren't other open or previously closed Pull Requests for the same change?
• If this PR fixes an issue, is the first line of the PR description fix #XX where XX is the issue number?

[codecov]

Codecov Report

Merging #518 (ff43b5c) into master (12f1996) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #518   +/-   ##
=======================================
  Coverage   87.87%   87.87%           
=======================================
  Files         129      129           
  Lines        5458     5461    +3     
=======================================
+ Hits         4796     4799    +3     
  Misses        662      662           

Files Changed	Coverage Δ
+file/fillExport.m	98.70% <100.00%> (+0.02%)	⬆️

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more