You can search for identifiers within the package.
in-package search v0.2.0
type token =
| CLOSING_BRACE
| EQUAL
| OPENING_BRACE
| SEMICOLON
| LOGGER
| EOF
| AND
| OR
| IDENT of string
| INTEGER of int
| FLOAT of float
| STRING of string
val file : (Lexing.lexbuf -> token) -> Lexing.lexbuf -> Configuration.t