import { QUEUE_HANDLER_METADATA_KEY } from '../container.js';
export { QUEUE_HANDLER_METADATA_KEY };
export interface QueueHandlerOptions {
    maxRetries?: number;
    backoffMs?: number;
    timeoutMs?: number;
    concurrency?: number;
}
export interface QueueHandlerMetadata {
    queueName: string;
    methodName: string;
    target: any;
    options: QueueHandlerOptions;
}
declare class QueueHandlerRegistry {
    private handlers;
    register(handler: QueueHandlerMetadata): void;
    getForQueue(queueName: string): QueueHandlerMetadata[];
    getAll(): QueueHandlerMetadata[];
    clear(): void;
}
export declare const queueRegistry: QueueHandlerRegistry;
export declare function getQueueHandlerMetadata(target: any): QueueHandlerMetadata[];
export declare function QueueHandler(queueName: string, options?: QueueHandlerOptions): (target: any, propertyKey: string | symbol, _descriptor?: PropertyDescriptor) => void;