For a course, I want to get a count of the requirements. There is no count of requirements on a course object, so I'd have to loop over all the modules, get the items and requirements. Is that the only way to do this?
I do know that if I look at one student I can get their progress and find out their progress i.e. how many requirements they have completed, and how many there are. Perhaps the reason there is no count of requirements on the course is that different student enrollments might have different numbers of requirements?