declare const _default: <T>(arr: T[], fn: string | ((v: T) => number)) => T;
/**
 * @param {Array} arr The array to iterate over.
 * @param {Function} [fn] The iteratee invoked per element.
 * @return {*} Returns the maximum value.
 * @example
 *
 * var objects = [{ 'n': 1 }, { 'n': 2 }];
 *
 * maxBy(objects, function(o) { return o.n; });
 * // => { 'n': 2 }
 *
 * maxBy(objects, 'n');
 * // => { 'n': 2 }
 */
export default _default;