import type { RedisAdapter } from './redis-adapter';
export declare interface DeduplicationConfig {
  enabled?: boolean
  ttl?: number
  maxSize?: number
  hashFunction?: (channel: string, event: string, data: unknown) => string
}
export declare class MessageDeduplicator {
  constructor(config?: DeduplicationConfig, redis?: RedisAdapter);
  isDuplicate(channel: string, event: string, data: unknown, messageId?: string): Promise<boolean>;
  clear(): Promise<void>;
  getStats(): {
    enabled: boolean
    cacheSize: number
    ttl: number
    usingRedis: boolean
  };
  stop(): void;
}