You can search for identifiers within the package.
in-package search v0.2.0
type token =
| LParen
| LBrace
| LBracket
| RParen
| RBrace
| RBracket
| Integer of int
| Float of float
| String of string
| Symbol of string
val string_of_token : token -> string
val regexps : (Str.regexp * (string -> token)) list
val whitespace : Str.regexp
val tokenize : string -> token list