fix: Precalculate implicit deps during class construction rather than traversing the output shape.

[DanCardin]

First step in #247

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.70%. Comparing base (fb505fd) to head (26bbf28).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #255      +/-   ##
==========================================
- Coverage   99.70%   99.70%   -0.01%     
==========================================
  Files          26       26              
  Lines        2720     2717       -3     
  Branches      601      598       -3     
==========================================
- Hits         2712     2709       -3     
  Misses          7        7              
  Partials        1        1              

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