/// <summary>
/// Called after this object finishes visiting a <see cref="YamlDocument"/>.
/// </summary>
/// <param name="document">
/// The <see cref="YamlDocument"/> that has been visited.
/// </param>
protected virtual void Visited(YamlDocument document)
{
// Do nothing.
}
void IYamlVisitor.Visit(YamlDocument document)
{
Visit(document);
VisitChildren(document);
Visited(document);
}