module type Handler = Virtual_dom__.Event_intf.Handlermodule type S = Virtual_dom__.Event_intf.Smodule Define : functor (Handler : Handler) -> S with type action := Handler.Action.t and type t := tFor registering a new handler and a corresponding new constructor of the Event.t type
module Define_visibility : functor (VH : Visibility_handler) -> sig ... endFor registering a handler for Viewport_changed events. Note that if this functor is called multiple times, each handler will see all of the events.
module Expert : sig ... end