Fixes and cleanups after applying Copier templates

[AndrewSazonov]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 40.05%. Comparing base (64b054b) to head (51d2088).
⚠️ Report is 3 commits behind head on develop.

❗ There is a different number of reports uploaded between BASE (64b054b) and HEAD (51d2088). Click for more details.

HEAD has 1 upload less than BASE

Flag	BASE (64b054b)	HEAD (51d2088)
unittests	2	1

Additional details and impacted files

@@             Coverage Diff              @@
##           develop      #82       +/-   ##
============================================
- Coverage    98.10%   40.05%   -58.05%     
============================================
  Files           21       28        +7     
  Lines         1055     1458      +403     
  Branches         0      237      +237     
============================================
- Hits          1035      584      -451     
- Misses          20      851      +831     
- Partials         0       23       +23     

Flag	Coverage Δ
integration	0.00% <ø> (?)
unittests	40.05% <ø> (-58.05%)	⬇️

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[github-advanced-security]

This pull request sets up GitHub code scanning for this repository. Once the scans have completed and the checks have passed, the analysis results for this pull request branch will appear on this overview. Once you merge this pull request, the 'Security' tab will show more code scanning analysis results (for example, for the default branch). Depending on your configuration and choice of analysis tool, future pull requests will be annotated with code scanning analysis results. For more information about GitHub code scanning, check out the documentation.