fix: add passthrough init to abstract provider

[gruebel]

Related Issues

Fixes #429

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 97.72%. Comparing base (1198728) to head (baeab17).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #450   +/-   ##
=======================================
  Coverage   97.72%   97.72%           
=======================================
  Files          32       32           
  Lines        1627     1629    +2     
=======================================
+ Hits         1590     1592    +2     
  Misses         37       37           

Flag	Coverage Δ
unittests	97.72% <100.00%> (+<0.01%)	⬆️

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