     
     /// Maximum line height.
     public var maximumLineHeight: CGFloat?
+    
+    /// Indentation of the first line of a paragraph.
+    public var firstLineHeadIndent: CGFloat?
+    
+    /// Indentation of the lines of the paragraph other than the first line.
+    public var headIndent: CGFloat?
     
     /// Paragraph spacing.
     public var paragraphSpacing: CGFloat?

        }
        if let maximumLineHeight = maximumLineHeight {
            paragraphStyle.maximumLineHeight = maximumLineHeight
        }
        
        if let paragraphSpacing = paragraphSpacing {

                lineHeightMultiple: CGFloat? = nil,
                minimumLineHeight: CGFloat? = nil,
                maximumLineHeight: CGFloat? = nil,
                firstLineHeadIndent: CGFloat? = nil,
                headIndent: CGFloat? = nil,
                paragraphSpacing: CGFloat? = nil,
                paragraphSpacingBefore: CGFloat? = nil,
                textAlignment: NSTextAlignment? = nil,
