Feature/add g eval

[bugtig6351]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 91.22807% with 5 lines in your changes missing coverage. Please review.

Project coverage is 89.11%. Comparing base (06da49e) to head (925761d).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
rageval/metrics/g_eval.py	90.19%	5 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #127      +/-   ##
==========================================
+ Coverage   89.03%   89.11%   +0.07%     
==========================================
  Files          35       36       +1     
  Lines        1131     1185      +54     
==========================================
+ Hits         1007     1056      +49     
- Misses        124      129       +5     

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