You can search for identifiers within the package.
in-package search v0.2.0
type t
val make : name:string -> input_ports:string array -> output_ports:string array -> t
val close : t -> unit
val output_event : t -> port:int -> stat:int -> chan:int -> dat1:int -> dat2:int -> unit
val get_input : t -> (int * int * int * int * int) array