chore: type improvements and tests for federation sdk package

[MarcosSpessatto]

No description provided.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.89%. Comparing base (4b555a2) to head (e731588).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #26      +/-   ##
==========================================
+ Coverage   79.04%   80.89%   +1.84%     
==========================================
  Files          17       21       +4     
  Lines        1026     1256     +230     
==========================================
+ Hits          811     1016     +205     
- Misses        215      240      +25     

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