Options?

[remino]

Continuing haml/haml#1101 (comment).

I'd like to know what options are available in Haml. But I cannot find them.

Looking at the Documentation, it links to "options", and yet that page lists no option whatsoever and has no "options" anchor:

curl -sL https://haml.info/docs/yardoc/file.REFERENCE.html\#options | grep options; echo $?
# 1

I was referred to REFERENCE.md, but that only describes how to pass options, not the available options.