extension CourseDetail {
    @NSManaged public var title: String?
    @NSManaged public var chapter: NSOrderedSet?
    @NSManaged public var author: NSOrderedSet?
}

// MARK: Generated accessors for chapter
extension CourseDetail {

    @objc(addChapterObject:)
    @NSManaged public func addToChapter(_ value: Chapter)

    @objc(removeChapterObject:)
    @NSManaged public func removeFromChapter(_ value: Chapter)

    @objc(addChapter:)
    @NSManaged public func addToChapter(_ values: NSSet)

    @objc(removeChapter:)
    @NSManaged public func removeFromChapter(_ values: NSSet)

}