import { ICallback, ILogger } from 'redis-smq-common';
import { RedisClient } from '../../../common/redis-client/redis-client.js';
export declare abstract class QueueMessagesStorage {
    protected redisClient: RedisClient;
    protected logger: ILogger;
    protected constructor(redisClient: RedisClient);
    abstract count(redisKey: string, cb: ICallback<number>): void;
    abstract fetchItems(redisKey: string, pageParams: {
        page: number;
        pageSize: number;
        offsetStart: number;
        offsetEnd: number;
    }, cb: ICallback<string[]>): void;
    abstract fetchAllItems(redisKey: string, cb: ICallback<string[]>): void;
}
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