Overview.swift

let model = ZDKHelpCenterOverviewContentModel.defaultContent()
        
// Use the model to filter content by IDs, tags, etc

ZDKHelpCenterProvider().getHelpCenterOverview(withHelpCenterOverviewModel: model) { (result, _) in
    guard let categories = result else { return }

    print ("Help Center has \(categories.count) categories")

    for category in categories {
        print ("Category name is \(category.name)")

        for section in category.sections {
            print ("Section name is \(section.name)")

            for article in section.articles {
                print ("Article name is \(article.name)")
            }
        }
    }
}