refactor: simple improvements

[denopink]

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.71%. Comparing base (efc481e) to head (b928780).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #508   +/-   ##
=======================================
  Coverage   99.71%   99.71%           
=======================================
  Files          30       30           
  Lines         699      699           
=======================================
  Hits          697      697           
  Misses          2        2           

Flag	Coverage Δ
unittests	99.71% <ø> (ø)

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