for c in model.mclasses do
if not mmodule.in_importation <= c.intro_mmodule then continue
if not mmodule.is_visible(c.intro_mmodule, c.visibility) then continue
for c in model.mclasses do
if not mmodule.in_importation <= c.intro_mmodule then continue
if not mmodule.is_visible(c.intro_mmodule, c.visibility) then continue