You can search for identifiers within the package.
in-package search v0.2.0
type +'a id
val new_elt_id : ?global:bool -> unit -> 'a id
val create_named_elt : id:'a id -> 'a elt -> 'a elt
val create_global_elt : 'a elt -> 'a elt
val create_request_elt : ?reset:bool -> 'a elt -> 'a elt
val string_of_id : 'a id -> string