You can search for identifiers within the package.
in-package search v0.2.0
type 'a t
type key = string
val empty : 'a t
val add : key -> 'a -> 'a t -> 'a t
val find_exn : key -> 'a t -> 'a
val find : key -> 'a t -> 'a option
val fold : (key -> 'a -> 'b -> 'b) -> 'b -> 'a t -> 'b
val map_opt : (key -> 'a -> 'b option) -> 'a t -> 'b t
val to_list : 'a t -> 'a t