/// <summary>
        ///   <para>Vertical height of the button in pixels.</para>
        /// </summary>
        /// <param name="widget">Widget to call method on.</param>
        /// <param name="height">Height of button.</param>
        /// <returns>Reference to provided <paramref name="widget"/>.</returns>
        /// <exception cref="ArgumentNullException">If <paramref name="widget"/> is a <c>null</c> reference.</exception>
        /// <seealso cref="IVkontakteLikeButtonWidget.Height(string)"/>
        public static IVkontakteLikeButtonWidget Height(this IVkontakteLikeButtonWidget widget, short height)
        {
            Assertion.NotNull(widget);

            return(widget.Height(height.ToString(CultureInfo.InvariantCulture)));
        }
        /// <summary>
        ///   <para>Visual layout/appearance of the button.</para>
        /// </summary>
        /// <param name="widget">Widget to call method on.</param>
        /// <param name="layout">Layout of button.</param>
        /// <returns>Reference to provided <paramref name="widget"/>.</returns>
        /// <exception cref="ArgumentNullException">If <paramref name="widget"/> is a <c>null</c> reference.</exception>
        /// <seealso cref="IVkontakteLikeButtonWidget.Layout(string)"/>
        public static IVkontakteLikeButtonWidget Layout(this IVkontakteLikeButtonWidget widget, VkontakteLikeButtonLayout layout)
        {
            Assertion.NotNull(widget);

            return(widget.Layout(layout.ToString().ToLowerInvariant()));
        }
        /// <summary>
        ///   <para>Width of button in pixels.</para>
        /// </summary>
        /// <param name="widget">Widget to call method on.</param>
        /// <param name="width">Width of button.</param>
        /// <returns>Reference to provided <paramref name="widget"/>.</returns>
        /// <exception cref="ArgumentNullException">If <paramref name="widget"/> is a <c>null</c> reference.</exception>
        /// <seealso cref="IVkontakteLikeButtonWidget.Width(string)"/>
        public static IVkontakteLikeButtonWidget Width(this IVkontakteLikeButtonWidget widget, short width)
        {
            Assertion.NotNull(widget);

            return(widget.Width(width.ToString(CultureInfo.InvariantCulture)));
        }
        /// <summary>
        ///   <para>Type of text to display on the button.</para>
        /// </summary>
        /// <param name="widget">Widget to call method on.</param>
        /// <param name="verb">Displayed button's verb.</param>
        /// <returns>Reference to provided <paramref name="widget"/>.</returns>
        /// <exception cref="ArgumentNullException">If <paramref name="widget"/> is a <c>null</c> reference.</exception>
        /// <seealso cref="IVkontakteLikeButtonWidget.Verb(byte)"/>
        public static IVkontakteLikeButtonWidget Verb(this IVkontakteLikeButtonWidget widget, VkontakteLikeButtonVerb verb)
        {
            Assertion.NotNull(widget);

            return(widget.Verb((byte)verb));
        }