remove use_persis_return_sim plus mypy fixes

[jlnav]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.39%. Comparing base (089ea5e) to head (e1dff97).
⚠️ Report is 10 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #1715      +/-   ##
===========================================
+ Coverage    91.83%   92.39%   +0.56%     
===========================================
  Files           81       81              
  Lines         8251     8247       -4     
  Branches      1268     1267       -1     
===========================================
+ Hits          7577     7620      +43     
+ Misses         472      420      -52     
- Partials       202      207       +5     

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[shuds13]

Is the persistent sim example still getting tested.

Remove the sim and gen versions of this variable - check no persistent sim or gen is returning data that is not needed (ie. dupcliate of whatever was returned in loop). When they should return, you can see something with update H after loop.