public void Accept <TContext>(TreeNodeVisitor <TContext> visitor, TContext context) =>
 visitor.VisitYamlFileNode(this, context);
 public TReturn Accept <TContext, TReturn>(TreeNodeVisitor <TContext, TReturn> visitor, TContext context) =>
 visitor.VisitYamlFileNode(this, context);
 public void Accept(TreeNodeVisitor visitor) =>
 visitor.VisitYamlFileNode(this);