Method: Retrieve the post ID of the section’s parent course

Method: Get all lessons in the section

Method: Get sibling sections

Method: Add data to the course model when converted to array

Method: Retrieve the order of the section within the course

Method: Retrieve the total number of elements in the section

Method: Retrieve an instance of LLMS_Course for the sections’s parent course

Method: An array of default arguments to pass to $this->create() when creating a new section