You can search for identifiers within the package.
in-package search v0.2.0
type t = int
A standard HTTP code.
https://tools.ietf.org/html/rfc7231#section-6
val ok : t
The code 200
200
val not_found : t
The code 404
404
val descr : t -> string
A description of some of the error codes. NOTE: this is not complete (yet).