import 'reflect-metadata';
import type { TransportSubscribeOptions } from './transport/transport.interface.js';
export interface OnNotificationOptions extends TransportSubscribeOptions {
    exactlyOnce?: boolean;
}
export interface NotificationHandlerMetadata {
    pattern: string;
    methodName: string;
    options: OnNotificationOptions;
}
export declare function OnNotification(pattern: string, options?: OnNotificationOptions): MethodDecorator;
export declare function getNotificationHandlers(target: new (...args: unknown[]) => unknown): NotificationHandlerMetadata[];
export declare function hasNotificationHandlers(target: new (...args: unknown[]) => unknown): boolean;
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