You can search for identifiers within the package.
in-package search v0.2.0
module Spec : SpecType
module RowSet : sig ... end
type t = RowSet.t
val add_row : t -> row:RowSet.elt -> t
val count_rows : t -> int
val create : unit -> t
val read : ?skip_title:bool -> string -> t
val write : filename:string -> t -> unit