/**
 * EXPERIMENTAL: Creates a NVL xxx.GVL file as string for Codesys to import
 * @param listID
 * @param udpPort
 * @param declaration
 * @returns
 */
export declare const createNvlString: (listID: number, udpPort: number, declaration: string) => string;
/**
 * EXPERIMENTAL: Creates a NVL xxx.GVL file for Codesys to import.
 *
 * @param listID
 * @param udpPort
 * @param declaration
 * @param filename
 */
export declare const createNvlFile: (listID: number, udpPort: number, declaration: string, filename: string) => Promise<void>;