/**
 * Parses a PDS4 XML label string into a DOM {@link Document}.
 *
 * Uses the browser's `DOMParser` when available, or falls back to the
 * `xmldom` npm package for Node.js / server-side environments.
 *
 * @param xmlText - Full text content of a PDS4 `.xml` label file.
 * @returns Promise that resolves to a parsed XML document.
 */
export declare function parseXML(xmlText: string): Promise<Document>;