Parallel generate backup mapping

[midnightercz]

No description provided.

[gitguardian]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (3677276) to head (0a03529).
Report is 5 commits behind head on master.

❗ Current head 0a03529 differs from pull request most recent head bdac9df. Consider uploading reports for the commit bdac9df to get more accurate results

Additional details and impacted files

@@            Coverage Diff            @@
##            master      #231   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           26        26           
  Lines         3073      3073           
=========================================
  Hits          3073      3073           

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