Function lists_of_pages 

pub fn lists_of_pages(
    state: &CourseState,
    page_ids: &[Uuid],
    with_course_default: bool,
) -> Vec<InstructionsList>

The instruction lists of the exercises on page_ids, in page and block order, and the course default’s when with_course_default or when one of those exercises uses it. Review instructions count only for exercises with reviews.