 //MARK: Public Methods
 public extension SAInboxViewController {
     public func setHeaderViewHidden(hidden: Bool, animated: Bool) {
-        headerViewHeightConstraint?.constant = hidden ? 0 : SAInboxViewController.kHeaderViewHeight
+        headerViewHeightConstraint?.constant = hidden ? 0 : SAInboxViewController.HeaderViewHeight
         if animated {
             UIView.animateWithDuration(0.25) {
                 self.view.layoutIfNeeded()

        ])
        self.headerViewHeightConstraint = headerViewHeightConstraint
        
        tableView.setTranslatesAutoresizingMaskIntoConstraints(false)
        view.addSubview(tableView)
        view.addConstraints([

    
    //MARK: - Staitc properties
    public static let appearance = Appearance()
    static let HeaderViewHeight: CGFloat = 64
    static let StatusBarHeight: CGFloat = 20
    
    //MARK: - Instance properties
    public let headerView = HeaderView()
