How to subclass a UILabel in swift with letter spacing set to 1.5 using NSKernAttribute

I am trying to subclass a UILabel so that it has a default kerning set to 1.5 then i am going to use that in my app with multiple labels. goal is to have default kern set out of the box so i can avoid repeated code all over the place also labels are set as mix of attributed and regular text Exapmple: @IBoutlet weak var myLabel: CustomeLabelWithKern! myLabel.attributedText = myAttributedText

@IBOutlet weak var myOtherLabelInADifferentViewController: CustomeLabelWithKern!
myOtherLabelInADifferentViewController.text "Foo Bar"

both of these label should have kern of 1.5