Use Handler insteal of Happend trait

[codecov[bot]]

Codecov Report

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

Project coverage is 65.20%. Comparing base (49679b7) to head (db9232b).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #2763 +/- ## ========================================== - Coverage 65.28% 65.20% -0.08% ========================================== Files 67 68 +1 Lines 9343 8922 -421 ========================================== - Hits 6100 5818 -282 + Misses 3243 3104 -139 ```

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