     /// The inset from the top of the view controller when fully open.
     public var topInset: CGFloat = 50.0 {
         didSet {
-            if self.isViewLoaded()
+            if self.isViewLoaded
             {
                 self.view.setNeedsLayout()
             }

    /// The opacity of the drawer shadow.
    public var shadowOpacity: Float = 0.1 {
        didSet {
            if self.isViewLoaded()
            {
                self.view.setNeedsLayout()
            }

        
        let cardMaskLayer = CAShapeLayer()
        cardMaskLayer.path = borderPath
        cardMaskLayer.fillColor = UIColor.white.cgColor
        cardMaskLayer.backgroundColor = UIColor.clear.cgColor
        drawerContentContainer.layer.mask = cardMaskLayer
        drawerShadowView.layer.shadowPath = borderPath
        
