fix: refactor & resolve a subset of mypy issues

[mhoff]

Description

• refactor & resolve a subset of mypy issues

Assignee

• The changes adhere to the contribution guidelines
• I have performed a self-review of my code
• My changes generate no new warnings (e.g. flake8/mypy/pytest/...) other than deprecations

Documentation

• README.md is up-to-date
• CHANGELOG.md is up-to-date
• Documentation (doc/source) is up-to-date
• Preview for docs looks fine
• Notebooks are up-to-date and functional
• Examples are up-to-date and functional (including compose & k8s)

Code Quality

• Patch test coverage > 95% and does not decrease
• New code uses correct & specific type hints

How did you verify that the changes work in practice?

• pytests

Reviewer

• The code is readable/maintainable and follows the contribution guidelines
• Documentation is up-to-date
• Tests (unit & acceptance) are meaningful and not over-mocked

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The rendered docs for this PR can be found here.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 98.19277% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 96.16%. Comparing base (62308c3) to head (cbbbf69).

Files with missing lines	Patch %	Lines
logprep/filter/lucene_filter.py	93.33%	1 Missing ⚠️
logprep/ng/abc/processor.py	93.33%	1 Missing ⚠️
logprep/util/helper.py	96.29%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #936      +/-   ##
==========================================
+ Coverage   96.13%   96.16%   +0.02%     
==========================================
  Files         217      217              
  Lines       14220    14219       -1     
==========================================
+ Hits        13671    13674       +3     
+ Misses        549      545       -4     

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[kaya-david]

Thanks for the PR. I’ve left a few comments and questions.

[kaya-david]

Thanks, one small comment left.

[kaya-david]

Thanks a lot! I’ve left a suggestion for improvement. 👍