Options for summary in asciidoc(tor)

So we have <!--more--> in markdown and # more in org mode, is there something similar in asciidoc?
If not, what options do we have?

edit:
It would seem that doing:

// content/thing.adoc
[.more]
This is the more block.
++++
<!--more-->
++++

But is this not a weird workaround?