export type ShouldSendMiddleware<Req = any, Res = any> = (req: Req, res: Res, eventName: string) => boolean;
/**
 * Decorates the route (requires PusherEvent) to check whether the event should be sent or not conditionally
 * @default true
 * @param middleware
 * @constructor
 */
export declare function PusherSendGuard(middleware: ShouldSendMiddleware): MethodDecorator;