/**
 * Creates a backup of VTEX CMS files for a specified site.
 *
 * This function performs the following steps:
 * 1. Validates that a site name is provided; exits the process if not.
 * 2. Logs the backup process and sets up the backup directory in the current working directory.
 * 3. Obtains the VTEX authentication token and account information.
 * 4. Retrieves the list of files from the VTEX CMS for the specified site.
 * 5. Filters the files to include only `.css` and `.js` files (excluding `.map` files).
 * 6. Downloads the filtered files into the backup directory.
 *
 * @param site - The name of the site to back up. If undefined, the process will exit with an error.
 * @returns A Promise that resolves when the backup process is complete.
 */
export declare const backup: (site: string | undefined) => Promise<void>;
/**
 * Retrieves a list of files from a specified directory URL using a VTEX authentication token.
 *
 * @param params - An object containing the following properties:
 * @param params.token - The VTEX authentication token used for authorization.
 * @param params.url - The URL of the directory to fetch files from.
 * @returns A promise that resolves to an array of file names (strings) if the request is successful, or an empty array otherwise.
 */
export declare const getDirectoryFiles: ({ token, url }: {
    token: string;
    url: string;
}) => Promise<string[]>;