Mixer Cost Documentation

[MarcusHolly]

Fixes/Resolves:

#1360

Legal Acknowledgement

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[agarciadiego]

LGTM

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 93.63%. Comparing base (6d79709) to head (2c01993).
Report is 25 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #1456       +/-   ##
===========================================
+ Coverage   41.45%   93.63%   +52.18%     
===========================================
  Files          97      285      +188     
  Lines       10662    30580    +19918     
===========================================
+ Hits         4420    28635    +24215     
+ Misses       6242     1945     -4297     

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