/**
 * Converts `string` to
 * [kebab case](https://en.wikipedia.org/wiki/Letter_case#Special_case_styles).
 *
 * kebabCase('Foo Bar') // => 'foo-bar'
 * kebabCase('fooBar') // => 'foo-bar'
 * kebabCase('__FOO_BAR__') // => 'foo-bar'
 */
export declare const kebabCase: (input: string) => string;