removed "mandatory" arguements

[arkiev]

added | None and default= so that non-mandatory arguments are not expected

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 62.96%. Comparing base (c29aea6) to head (9b9cf97).

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #20      +/-   ##
==========================================
- Coverage   62.96%   62.96%   -0.01%     
==========================================
  Files         105      105              
  Lines        5703     5702       -1     
==========================================
- Hits         3591     3590       -1     
  Misses       2112     2112              

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