improve: import time with lazy regex and imports

[hukkin]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (27bce74) to head (b9aac11).
Report is 12 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##            master      #506   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           15        15           
  Lines          954       954           
  Branches       168       168           
=========================================
  Hits           954       954           

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