Select objects from linked Collections (Library Override)

Hi,

I am working on a pipeline script, and I would like a function that export automatically one alembic per Linked asset.

I can access each one of my linked asset with bpy.data.libraries, but once I get this, I can’t seem to access the collections and objects that are inside and create an alembic from those objects.

Is it possible ? And if yes, do you have an idea of how it could be done ?

Cheers !