You can search for identifiers within the package.
in-package search v0.2.0
progress.engine
Progress_engine.Integer
module type S = sig ... end
module Int : S with type t = int
module Int32 : S with type t = int32
module Int64 : S with type t = int64
module Int63 : S with type t = Optint.Int63.t
module Float : S with type t = float