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