You can search for identifiers within the package.
in-package search v0.2.0
type 'a q
val create : int -> 'a q
val push : 'a -> 'a q -> unit Lwt.t
val get : 'a q -> 'a option Lwt.t
val count : 'a q -> int
val close : 'a q -> unit
val closed : 'a q -> bool
val blocked : 'a q -> bool