fix: remove default bounds being None for #356

[tsutterley]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 70.89%. Comparing base (d97482b) to head (c0b3dc8).
Report is 7 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #357      +/-   ##
==========================================
- Coverage   71.59%   70.89%   -0.70%     
==========================================
  Files          39       41       +2     
  Lines       10495    10387     -108     
  Branches     1407     1130     -277     
==========================================
- Hits         7514     7364     -150     
- Misses       2517     2562      +45     
+ Partials      464      461       -3     

Flag	Coverage Δ
unittests	70.89% <100.00%> (-0.70%)	⬇️

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