providerreuse.swift

    func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
        if section <= Sections.count() - Sections.feedOffset() {
            let sectionSwitch = Sections(rawValue: section)!
            return sectionSwitch.headerView(controller: self)
        }
        switch filter {
        case .books:
            return MyBooksTableProvider.Sections(rawValue: section - 2)!.headerView()
        default:
            return nil
        }
    }