You can search for identifiers within the package.
in-package search v0.2.0
module KV : Dokeysto.Db_gen.Key_val
type t = Dokeysto__Db_gen.RO(KZV(KV)).t
val open_existing : Dokeysto__Db_gen.filename -> t
val dummy : unit -> t
val close : t -> unit
val mem : t -> 'k -> bool
val find : t -> 'k -> 'v
val iter : ('k -> 'v -> unit) -> t -> unit
val fold : ('k -> 'v -> 'acc -> 'acc) -> t -> 'acc -> 'acc