Define exports to throw informative error in Julia DEV versions

[nickrobinson251]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 90.42%. Comparing base (9ed5b27) to head (df7a15c).
Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
src/JETEmpty.jl	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #688      +/-   ##
==========================================
- Coverage   90.45%   90.42%   -0.03%     
==========================================
  Files          14       15       +1     
  Lines        3102     3103       +1     
==========================================
  Hits         2806     2806              
- Misses        296      297       +1     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[aviatesk]

Thanks so much!