You can search for identifiers within the package.
in-package search v0.2.0
cfg
Cfg.Bnf_lexer
val id : 'a -> 'a
val __ocaml_lex_tables : Lexing.lex_tables
val start : Lexing.lexbuf -> Bnf_parser.token
val __ocaml_lex_start_rec : Lexing.lexbuf -> int -> Bnf_parser.token
val esc_string : Lexing.lexbuf -> string list
val __ocaml_lex_esc_string_rec : Lexing.lexbuf -> int -> string list