Use Python 3.10 typing feature, black styling indentations

[teutoburg]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.16%. Comparing base (730c2b2) to head (72dce11).
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #40   +/-   ##
=======================================
  Coverage   99.16%   99.16%           
=======================================
  Files           5        5           
  Lines         361      361           
=======================================
  Hits          358      358           
  Misses          3        3           

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