auto generate function signature

[cpunion]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 68.93939% with 41 lines in your changes missing coverage. Please review.

Project coverage is 90.95%. Comparing base (f2c4b10) to head (d4b082e).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
extension.go	68.03%	31 Missing and 8 partials ⚠️
object.go	66.66%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #25      +/-   ##
==========================================
- Coverage   93.25%   90.95%   -2.30%     
==========================================
  Files          19       19              
  Lines        1289     1415     +126     
==========================================
+ Hits         1202     1287      +85     
- Misses         62       95      +33     
- Partials       25       33       +8     

Flag	Coverage Δ
unittests	90.95% <68.93%> (-2.30%)	⬇️

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