import 'reflect-metadata';
import type { FilterToken, GuardToken, InterceptorToken, PipeToken } from '@nl-framework/core';
import type { MessagePattern } from '../interfaces/transport';
export interface PatternMetadata {
    pattern: MessagePattern;
    isEvent: boolean;
}
export interface MessageHandlerDefinition {
    propertyKey: string;
    metadata: PatternMetadata;
    guards: GuardToken[];
    interceptors: InterceptorToken[];
    pipes: PipeToken[];
    filters: FilterToken[];
}
export declare function MessagePattern(pattern: MessagePattern): MethodDecorator;
export declare function EventPattern(pattern: MessagePattern): MethodDecorator;
export declare function getMessagePatternMetadata(target: object, propertyKey: string | symbol): PatternMetadata | undefined;
export declare function listMessageHandlers(target: object): MessageHandlerDefinition[];
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