You can search for identifiers within the package.
in-package search v0.2.0
class type impl = object ... end
type rotation = {
seconds_elapsed : float option;
signal_caught : Signal.t option;
}
type t = string -> rotation -> Layout.t lazy_t -> impl
val register : string -> t -> unit
val register_unnamed : t -> string
val get : string -> t
val void : t
val file : t
val growlnotify : t
val bell : t
val say : t
val signals : bool array