// Id
/// <summary>
/// Id of the element.
/// </summary>
/// <param name="elementHandle">An <see cref="ElementHandle"/></param>
/// <returns>The element's <c>id</c>, or <c>null</c> if the attribute is missing.</returns>
public static string Id(this ElementHandle elementHandle)
{
return(elementHandle.IdAsync().Result());
}
