You can search for identifiers within the package.
in-package search v0.2.0
range
Range.Number
type 'a t
val gtz_from_int : Base.Int.t -> [ `Greater_than_zero ] t Base.Option.t
val gtz_from_int_exn : Base.Int.t -> [ `Greater_than_zero ] t
val positive_from_int : Base.int -> [ `Positive ] t Base.Option.t
val positive_from_int_exn : Base.int -> [ `Positive ] t
val to_int : 'a t -> Base.int