Xmpp_entity_capabilities.Make
module Client : Xmpp.Client.S
module Ns : sig ... end
module Disco : sig ... end
val advertise : category:string -> type':string -> ?lang:string -> ?name:string ->
?node:string -> Stdlib.String.t list -> Client.t -> Xmpp.Jid.t option Lwt_react.event Lwt.t