How to detect link in UILabel in swift 4?

I was able to find out the solution for swift 4 as well.

label.configureLinkAttribute = { (type, attributes, isSelected) in
                var atts = attributes
                switch type {
                case customType1:
                    atts[NSAttributedStringKey.font.rawValue] = UIFont(name: self.labelTc.font.fontName, size: 15.0)
                    atts[NSAttributedStringKey.underlineStyle.rawValue] = NSUnderlineStyle.styleSingle.rawValue
                    break

              default: ()
                }
                return atts
            }