You can search for identifiers within the package.
in-package search v0.2.0
module H : Hashtbl.HashedType
type t
type elt = H.t
val clear : t -> unit
val length : t -> int
val create : int -> t
val to_weakid : t -> elt -> int64
val of_weakid : t -> int64 -> elt list
val mem : t -> elt -> bool
val mem_weakid : t -> int64 -> bool
val add : t -> elt -> int64 -> unit
val fresh : t -> elt -> int64
val remove : t -> elt -> unit
val replace : t -> elt -> int64 -> unit
val dump : t -> string