debugged extra_hook

[codecov[bot]]

Codecov Report

Patch and project coverage have no change.

Comparison is base (3733555) 93.23% compared to head (6833d2b) 93.23%. Report is 1 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #31 +/- ## ======================================= Coverage 93.23% 93.23% ======================================= Files 30 30 Lines 4275 4275 Branches 421 421 ======================================= Hits 3986 3986 Misses 221 221 Partials 68 68 ``` | [Files Changed](https://app.codecov.io/gh/ArcanaFramework/fileformats/pull/31?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=ArcanaFramework) | Coverage Δ | | |---|---|---| | [fileformats/core/mark.py](https://app.codecov.io/gh/ArcanaFramework/fileformats/pull/31?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=ArcanaFramework#diff-ZmlsZWZvcm1hdHMvY29yZS9tYXJrLnB5) | `77.94% <0.00%> (ø)` | |

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