Feature: let ?before and ?before_user arguments from test_function... returns a Learnocaml_report.t type (as ?after)

[asere]

Related issue(s) or PR(s):
I don't know, maybe none ?

Related project scope(s):
Grading test functions with ?before : 'a -> ... -> unit or ?before_user: 'a -> ... -> unit as optionnal argument

Related user(s):
I don't know, maybe only me ?

The problem

Hello,
Actually, the main utility of preprocessing functions ?before or ?before_user used as argument of test_function... is to introduce references or side-effects. But I'm wondering if theses functions can also print some messages/sections before the test report, and I'm actually not able to find another way to do that.
I've tried to wrap ?test argument, but a message "Computing..." is created before the test.

Wanted solution

I want arguments like ?before: 'a -> ... -> Learnocaml_report.t or ?before_user: 'a -> ... -> Learnocaml_report.t for test_function like functions.

Considered alternatives

At the moment, I have to use after function, then add some fixs by adding a header and removing the last line.

Additional context

My actual use of this feature is to add some breaklines between tests, by just creating before functions fun _ -> breakline, while breakline: Learnocaml_report.t is use a Message (Break, Informative) report for instance.