NSAttributedStringKey' .font to .zone?

[masuhara]

extension String {
    fileprivate func height(withConstrainedWidth width: CGFloat, font: UIFont) -> CGFloat {
        let constraintRect = CGSize(width: width, height: .greatestFiniteMagnitude)
        
**// Error: Type 'NSAttributedStringKey' (aka 'NSString') has no member 'font'; did you mean 'zone'?**
        let boundingBox = self.boundingRect(with: constraintRect, options: .usesLineFragmentOrigin, attributes: [NSAttributedStringKey.font: font], context: nil)
        
        return boundingBox.height
    }
    
    fileprivate func width(withConstrainedHeight height: CGFloat, font: UIFont) -> CGFloat {
        let constraintRect = CGSize(width: .greatestFiniteMagnitude, height: height)

**// Error: Type 'NSAttributedStringKey' (aka 'NSString') has no member 'font'; did you mean 'zone'?**
        let boundingBox = self.boundingRect(with: constraintRect, options: .usesLineFragmentOrigin, attributes: [NSAttributedStringKey.font: font], context: nil)
        
        return boundingBox.width
    }
}

[smkdoss73]

am also facing same issues

Type 'NSAttributedStringKey' (aka 'NSString') has no member 'font'; did you mean 'zone'?