/// <summary>
/// Submits the form of the element by decomposing the object into a dictionary
/// that contains its properties as name value pairs.
/// </summary>
/// <param name="element">The element to submit its form.</param>
/// <param name="fields">The optional fields to use as values.</param>
/// <returns>The task eventually resulting in the response.</returns>
public static Task <IDocument> SubmitAsync(this IHtmlElement element, Object fields = null)
{
return(element.SubmitAsync(fields.ToDictionary()));
}