You can search for identifiers within the package.
in-package search v0.2.0
type t = string
val compare : t -> t -> Ppx_deriving_runtime.int
val to_yojson : t -> Yojson.Safe.t
val of_yojson : Yojson.Safe.t -> t Ppx_deriving_yojson_runtime.error_or
val normalize : t -> t