You can search for identifiers within the package.
in-package search v0.2.0
type t
val create : bool -> len:int -> t
val get : t -> int -> bool
val num_set : t -> int
val indexes : t -> value:bool -> int array
val length : t -> int
val mapi : t -> f:(int -> bool -> bool) -> t
val iteri : t -> f:(int -> bool -> unit) -> unit
module Mutable : sig ... end