/**
 * @param {import('postcss-selector-parser').Selector} selector
 * @param {number} index
 * @param {string} value
 * @return {boolean | undefined | ''}
 */
declare function exists(selector: import('postcss-selector-parser').Selector, index: number, value: string): boolean | undefined | '';
export default exists;
//# sourceMappingURL=exists.d.ts.map