You can search for identifiers within the package.
in-package search v0.2.0
server-reason-react.js
Js.FormData
type entryValue = [
| `String of string
]
type t = (string, entryValue) Hashtbl.t
val make : unit -> t
val append : t -> string -> entryValue -> unit
val get : t -> string -> entryValue
val entries : t -> (string * entryValue) list