Add a clear cache function

[mistval]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.17%. Comparing base (1ec0182) to head (2bba1f5).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master      #63   +/-   ##
=======================================
  Coverage   98.16%   98.17%           
=======================================
  Files          13       13           
  Lines         764      768    +4     
  Branches       75       75           
=======================================
+ Hits          750      754    +4     
  Misses         13       13           
  Partials        1        1           

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