You can search for identifiers within the package.
in-package search v0.2.0
module Event : sig ... end
module Command : sig ... end
module App : sig ... end
val app : init:('model -> Command.t) -> update:(Event.t -> 'model -> 'model * Command.t) -> view:('model -> string) -> unit -> 'model App.t
val run : ?fps:int -> initial_model:'model -> 'model App.t -> unit
val start : 'model App.t -> initial_model:'model -> unit