[FSM] Add loop syntax

[leonardt]

No description provided.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.25%. Comparing base (8d37c00) to head (9bbe217).

❗ Current head 9bbe217 differs from pull request most recent head f78909a. Consider uploading reports for the commit f78909a to get more accurate results

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Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1372      +/-   ##
==========================================
+ Coverage   85.23%   85.25%   +0.02%     
==========================================
  Files         171      171              
  Lines       17893    17919      +26     
==========================================
+ Hits        15251    15277      +26     
  Misses       2642     2642              

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