/**
	 * Get the students last completed lesson in a course
	 *
	 * @param    int $course_id    WP_Post ID of the course
	 * @return   int                   WP_Post ID of the lesson or false if no progress has been made
	 * @since    3.0.0
	 * @version  3.0.0
	 */
	public function get_last_completed_lesson( $course_id ) {

		$course  = new LLMS_Course( $course_id );
		$lessons = array_reverse( $course->get_lessons( 'ids' ) );