You can search for identifiers within the package.
in-package search v0.2.0
rhythm.lib
Rhythm.BinarySearch
val searchi : get:(int -> 'a) -> compare:('a -> 'a -> int) -> testCompare:('a -> int) -> first:int -> last:int -> unit -> int option
val search : get:(int -> 'a) -> compare:('a -> 'a -> int) -> testCompare:('a -> int) -> first:int -> last:int -> unit -> 'a option