You can search for identifiers within the package.
in-package search v0.2.0
type 'a t = 'a Scheduler.s
module Future : sig ... end
module Mutex : sig ... end
module Condition : sig ... end
val bind : 'a t -> ('a -> 'b t) -> 'b t
val return : 'a -> 'a t
val nfork_map : 'a list -> f:('a -> 'b t) -> 'b Future.t list t
val all_unit : unit t list -> unit t