When a module is using at expressions, such as:
#lang at-exp racket/base
or
#lang scribble/manual
You have access to the following types of comments:
@;{Block text that goes
until the closing
brace.}
As well as:
@; Single line text.
Note that if you are using a language that only uses at-exps (such as most scribble languages), you will need ot use one of these types of comments.