import { Repository } from 'typeorm';
import { ConfigService } from '../../config/services/config.service';
import { EnergyDeltaEntity } from '../entities/energy-delta.entity';
export declare class EnergyCleanupService {
    private readonly deltaRepository;
    private readonly configService;
    private readonly logger;
    constructor(deltaRepository: Repository<EnergyDeltaEntity>, configService: ConfigService);
    runCleanup(): Promise<void>;
    computeCutoff(retentionDays: number): Date;
    private deleteInBatches;
    private getRetentionDays;
}