/**
 * Converts the string to camel case
 *
 * @since v0.0.1
 * @category String
 * @param {string} original - The original string
 * @returns {string}
 * @example
 * camel('Hello World')        //=> 'helloWorld'
 * camel('-%^-hello-world--')  //=> 'helloWorld'
 * camel('$@__HELLO+WORLD__')  //=> 'helloWorld'
 * camel('2Hello 7world')      //=> 'hello7World'
 */
export declare const camel: (value: string) => string;