attr test for storage

[cacodcar]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 82.18%. Comparing base (17c706f) to head (9321d47).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #325   +/-   ##
=======================================
  Coverage   82.18%   82.18%           
=======================================
  Files          70       70           
  Lines        3850     3850           
=======================================
  Hits         3164     3164           
  Misses        686      686           

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