/**
 * Converts string to camel case.
 *
 * @param string - The string to convert
 * @returns The camel cased string
 *
 * @example
 * ```ts
 * camelCase('Foo Bar');
 * // => 'fooBar'
 *
 * camelCase('--foo-bar--');
 * // => 'fooBar'
 *
 * camelCase('__FOO_BAR__');
 * // => 'fooBar'
 * ```
 */
export declare function camelCase(string: string): string;