I have been to GitHub, but the documentation there is not what I'm looking for. I'm looking more this:
<!-- wp:post-featured-image /-->
<!-- wp:post-title /-->
<!-- wp:spacer {"height":40} -->
<!-- wp:post-content /-->
<!-- wp:spacer /-->
<!-- wp:group /-->
<!-- wp:template-part {"slug":"footer"} /-->
or is it just a matter of deduction: the name of the element concatenated with the wp comment structure:
<!-- wp:
plus post-title
plus optional attributes {tag: something}
plus /-->
I've searched and can't find it if it exists.