typing fix

[dapper91]

• func type aliases moved to model module to make get_type_hints work correctly.

fixes the issue

[codecov-commenter]

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.30%. Comparing base (8c219ca) to head (ec4b547).

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Additional details and impacted files

@@            Coverage Diff             @@
##              dev     #272      +/-   ##
==========================================
- Coverage   92.31%   92.30%   -0.01%     
==========================================
  Files          30       30              
  Lines        1730     1728       -2     
==========================================
- Hits         1597     1595       -2     
  Misses        133      133              

Flag	Coverage Δ
unittests	92.30% <100.00%> (-0.01%)	⬇️

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