export declare class DatabaseManager {
    private mongoClient;
    private db;
    /**
     * Initialize database connection with direct client creation
     * @param mongoDbName Database name
     * @param mongoUri MongoDB URI
     */
    initializeDatabase(mongoDbName: string, mongoUri: string): Promise<void>;
    /**
     * Close database connection
     */
    closeDatabase(): Promise<void>;
    /**
     * Get the database instance
     */
    getDb(): any;
    /**
     * Check if database is connected
     */
    isConnected(): boolean;
}