visitHeading method
Implementation
@override
String visitHeading(HeadingNode node) {
final body = node.content.accept(this);
return '<h${node.level}>$body</h${node.level}>';
}
@override
String visitHeading(HeadingNode node) {
final body = node.content.accept(this);
return '<h${node.level}>$body</h${node.level}>';
}