NSAttributedStringMakeAtributes

import UIKit

extension NSAttributedString {

    static func makeAtributes(
        font: UIFont,
        lineSpacing: CGFloat? = nil,
        characterSpacing: CGFloat? = nil,
        color: UIColor? = nil
        ) -> [String: Any] {
        var attrs: [String : Any] = [
            NSFontAttributeName: font
        ]

        if let lineSpacing = lineSpacing {
            let paragraphStyle = NSMutableParagraphStyle()
            paragraphStyle.lineSpacing = lineSpacing - font.lineHeight
            attrs[NSParagraphStyleAttributeName] = paragraphStyle
        }

        if let characterSpacing = characterSpacing {
            attrs[NSKernAttributeName] = characterSpacing
        }

        if let color = color {
            attrs[NSForegroundColorAttributeName] = color
        }

        return attrs

    }
}