import type { IDatabaseConnection } from '../core/interfaces.js';
export declare class BackupManager {
    private ctx;
    constructor(ctx: IDatabaseConnection);
    exportToFile(backupName?: string): Promise<{
        filename: string;
        path: string;
        sizeBytes: number;
    }>;
    listBackups(): {
        filename: string;
        path: string;
        sizeBytes: number;
        createdAt: string;
    }[];
    deleteOldBackups(keepCount: number): {
        deleted: string[];
        failed: string[];
        kept: number;
    };
    restoreFromFile(filename: string, runtime?: unknown): Promise<{
        restoredFrom: string;
        previousEntryCount: number;
        newEntryCount: number;
    }>;
}
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