/**
 * @fileoverview Implements the database export logic for Neo4j.
 * @module src/services/neo4j/backupRestoreService/exportLogic
 */
/**
 * Exports all Project, Task, and Knowledge nodes and relationships to JSON files.
 * Also creates a full-export.json file containing all data in a single file.
 * Manages backup rotation before creating the new backup.
 * @returns The path to the directory containing the backup files.
 * @throws Error if the export step fails. Rotation errors are logged but don't throw.
 */
export declare const _exportDatabase: () => Promise<string>;