some initial paths towards model free stuff.

[chamel3]

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[codecov]

Codecov Report

❌ Patch coverage is 48.27586% with 15 lines in your changes missing coverage. Please review.
✅ Project coverage is 70.13%. Comparing base (0e9edb1) to head (d544006).
⚠️ Report is 4 commits behind head on main.

Files with missing lines	Patch %	Lines
...nics/hyperelasticity/input_polyconvex_potential.py	44.44%	15 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #141      +/-   ##
==========================================
- Coverage   70.29%   70.13%   -0.16%     
==========================================
  Files          91       92       +1     
  Lines        4154     4182      +28     
==========================================
+ Hits         2920     2933      +13     
- Misses       1234     1249      +15     

Flag	Coverage Δ
unittests	70.13% <48.27%> (-0.16%)	⬇️

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