/**
 * generate the pdf document with the following input
 * @param text the markdwon text to insert in the docuement
 * @param opts object containing configuration keys for generating the pdf
 *   - index: path to the index.html file that defines a theme
 *   - format: (e.g. "Letter", "A4") overrides the format specified in the theme
 *   - out: name of output file
 *   - theme: name of a preconfigured theme to use (it has priority over the `index` property)
 *   - contentDir: content directory to take the content source from
 * @return the html that generates the pdf, useful for debugging purposes
 */
export declare function generate(text: any, opts: any): Promise<string>;
/**
 * get the list of preconfigured thems that can be used
 * @return a list of strings, each string representing a name of a theme
 */
export declare function getThemes(): string[];