feat: add commit handler wrapper

[albertlockett]

Add an option to WriteParams for a wrapper for the commit handler.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 80.00%. Comparing base (1fdcdd9) to head (c3e9f93). Report is 26 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##             main    #2598     +/-   ##
=========================================
  Coverage   80.00%   80.00%             
=========================================
  Files         209      212      +3     
  Lines       59914    61557   +1643     
  Branches    59914    61557   +1643     
=========================================
+ Hits        47932    49247   +1315     
- Misses       9153     9389    +236     
- Partials     2829     2921     +92     

Flag	Coverage Δ
unittests	80.00% <100.00%> (+<0.01%)	:arrow_up:

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