Use index util funtions outside of crate.

[alonh5]

This change is 

[alonh5]

• Use index util funtions outside of crate. #719 👈
• dev

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[ohad-starkware]

Reviewed 1 of 1 files at r2, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @alonh5)

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.52%. Comparing base (496323f) to head (040e43b).

Additional details and impacted files

@@           Coverage Diff           @@
##              dev     #719   +/-   ##
=======================================
  Coverage   90.52%   90.52%           
=======================================
  Files          76       76           
  Lines       10165    10165           
  Branches    10165    10165           
=======================================
  Hits         9202     9202           
  Misses        881      881           
  Partials       82       82           

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