You can search for identifiers within the package.
in-package search v0.2.0
ocamlformat-lib.parser_extended
Ocamlformat_parser_extended.Pprintast
val tyvar_of_name : Ocamlformat_parser_shims.String.t -> Ocamlformat_parser_shims.String.t
module Doc : sig ... end
val tyvar : Format.formatter -> Ocamlformat_parser_shims.String.t -> unit