     ///     ...
     /// }
     /// ```
-    public static var slow: TimeInterval = 0.5
+    public static var slow: Self = 0.5
 }
 
 extension CGAffineTransform {

    ///     ...
    /// }
    /// ```
    public static var normal: TimeInterval = 0.35

    /// The slow duration to use for animations when the desired interval is between
    /// `> 0.5` seconds.

    @nonobjc static var appleRed: UIColor { .init(hex: "FF3B30") }
}

extension URL {
    public static var mailApp: Self { URL(string: "message://")! }
}

// MARK: - Character

extension Character {
