This is server API (go to client)

Module Eliom_react.​S.​Down 

module Down : sig..end
type 'a t

The abstract type of down signals.

val of_react : 
  ?scope:[< Eliom_comet.Channels.comet_scope ] ->
  ?throttling:float ->
  ?name:string -> 'a React.S.t -> 'a t