include Persistent_connection_intf.Persistent_connectionmodule type S = Persistent_connection_intf.Smodule type T = Persistent_connection_intf.Tmodule Rpc : sig ... endmodule Versioned_rpc : S with type conn = Async_extra__.Import.Versioned_rpc.Connection_with_menu.t and type address = Core.Host_and_port.t