You can search for identifiers within the package.
in-package search v0.2.0
type t = {
year : int;
month : int;
day : int;
hour : int;
minute : int;
second : int;
hour_offset : int;
minute_offset : int;
}
exception BadDate
val check_date : t -> unit
val string_of_date : t -> string
val date_of_string : string -> t