import { UrlSourceConfiguration } from "../OptionModel.js";
/**
 * Retrieves the metadata from the given URL using the given configuration.
 *
 * Failure handling must be implemented by consumer.
 * Exception is thrown for failed requests (400, 401, ...).
 *
 * @param sourceUrl
 * @param sourceConfig
 * @param debug
 */
export declare function downloadMetadata(sourceUrl: string, sourceConfig?: UrlSourceConfiguration, debug?: boolean): Promise<string>;