Rdoc - can I choose which methods are "attributes"?

I thought I saw discussion about this once, but I don’t see anything in
the current rdoc docs (http://www.ruby-doc.org/stdlib/).

Treating methods as attrs if they were defined with attr, attr_reader,
etc. seems to break the whole point of uniform access, its just
an implmentation technique.

The defaults are often great, but is there any way, say a “#
:attr(r,w):” comment, that I can use to get some of my methods to show
up in the “Attributes” section of the docs?

I’d think the opposite kind of keyword would be useful, too, for pushing
some attributes out into the Methods section.

Cheers,
Sam