Clean impl service

[H1rono]

close #245

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 69.13%. Comparing base (e68c620) to head (f3ba4aa).
Report is 7 commits behind head on main.

Files with missing lines	Patch %	Lines
src/handler/future.rs	0.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #249   +/-   ##
=======================================
  Coverage   69.13%   69.13%           
=======================================
  Files          17       17           
  Lines        1753     1753           
=======================================
  Hits         1212     1212           
  Misses        541      541           

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