You can search for identifiers within the package.
in-package search v0.2.0
type db = Timedesc_tzdb.table Timedesc_tzdb.M.t
val empty : db
val add : t -> db -> db
val find_opt : string -> db -> t option
val remove : string -> db -> db
val of_seq : t Seq.t -> db
val add_seq : db -> t Seq.t -> db
val names : db -> string list
module Compressed : sig ... end
module Sexp : sig ... end