Using namespace app in module development

[c8y3]

We can see in the implementation of iris-check-module (https://github.com/dfir-iris/iris-check-module/blob/master/iris_check_module/IrisCheckModule.py#L24) that it imports method module_list_available_hooks from the namespace app.datamgmt.iris_engine.modules_db.
I believe, modules should limit themselves and use only methods provided by the iris_interface namespace. Otherwise this creates a coupling of the modules' code with potentially the whole codebase of iris-web. It's a potential recipe for frequent module breaks, as the iris-web application evolves. I thus find it preferable for the contract between modules and iris to be limited to the API of the iris_interface package only.
In this particular case, my suggestion would be to provide a method to list all available hooks trough the iris_interface package. What do you think?