/**
 * Turn a free-form language identifier into a display label for the code sample picker.
 *
 * @param lang - The language identifier from a custom code sample (e.g. `typescript`)
 * @returns A properly cased label (e.g. `TypeScript`), or `undefined` when no language is given
 */
export declare const formatLanguage: (lang?: string) => string | undefined;
//# sourceMappingURL=format-language.d.ts.map