These examples come from:

Lua Quick Reference
Second Edition
Published: May 2020
ISBN: 978-0-9912379-5-1
Pages: 169

https://orbitalquark.github.io/lua-quick-reference/

The contents of these examples may also include test code and/or boilerplate
code delimitted by "snipped" comments.

In Lua, snipped comments look like:

--8<---------------------------------------------------------------------------
Test and/or boilerplate code not included in the book.
--8<---------------------------------------------------------------------------

In C, snippet comments look like:

//8<---------------------------------------------------------------------------
Test and/or boilerplate code not included in the book.
//8<---------------------------------------------------------------------------