Heading
A section heading, numbered by `level` (1 = H1, 2 = H2, ...). Contains inline content in `inlines`. In Markdown backends this becomes `# text`, `## text`, etc; HTML backends emit `<h1>` etc.
- Subclass Of
Block
A section heading, numbered by `level` (1 = H1, 2 = H2, ...). Contains inline content in `inlines`. In Markdown backends this becomes `# text`, `## text`, etc; HTML backends emit `<h1>` etc.
Block