/// <summary>
        /// Sets the notification message overlay.
        /// </summary>
        /// <param name="builder">The builder.</param>
        /// <param name="overlay">The overlay.</param>
        /// <returns>Returns the notification message builder.</returns>
        public static NotificationMessageBuilder WithOverlay(
            this NotificationMessageBuilder builder,
            object overlay)
        {
            builder.SetOverlay(overlay);

            return(builder);
        }