import { Redis } from 'ioredis';
import { QuotaCheckResult, QuotaClientServiceInterface } from '../interfaces/index.js';
export declare const QUOTA_REDIS = "QUOTA_REDIS";
export declare class QuotaClientService implements QuotaClientServiceInterface {
    private readonly redis;
    private readonly logger;
    constructor(redis: Redis | null);
    checkQuota(userId: string, quotaType: string): Promise<QuotaCheckResult>;
    report(userId: string, quotaType: string, amount: number): Promise<void>;
    private key;
}
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