 
 
 private let parallaxHeaderKVOContext = UnsafeMutableRawPointer.allocate(
-    bytes: 4,
-    alignedTo: 1
+    byteCount: 4,
+    alignment: 1
 )
 
 class ParallaxView: UIView {

        contentView.addConstraints(
            NSLayoutConstraint.constraints(
                withVisualFormat: "H:|[v]|",
                options: NSLayoutFormatOptions(rawValue: 0),
                metrics: nil,
                views: binding
            )

        contentView.addConstraints(
            NSLayoutConstraint.constraints(
                withVisualFormat: "V:[v(==height)]|",
                options: NSLayoutConstraint.FormatOptions(rawValue: 0),
                metrics: metrics,
                views: binding
            )
