Use case: given a course and a current lesson, recommend the next lesson
in the course. Crosses module boundaries — when the current lesson is the
last in its module, returns the first lesson of the next module; returns
null when the learner just finished the last lesson of the last module.
Use case: given a course and a current lesson, recommend the next lesson in the course. Crosses module boundaries — when the current lesson is the last in its module, returns the first lesson of the next module; returns
nullwhen the learner just finished the last lesson of the last module.