Add should_serialize option

[superstar54]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 77.77778% with 2 lines in your changes missing coverage. Please review.

Project coverage is 91.51%. Comparing base (2330cd1) to head (e2c789f).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/node_graph/node.py	60.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #50      +/-   ##
==========================================
- Coverage   91.57%   91.51%   -0.06%     
==========================================
  Files          44       44              
  Lines        2920     2924       +4     
==========================================
+ Hits         2674     2676       +2     
- Misses        246      248       +2     

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