/**
 * This method is like `uniq` except that it accepts `comparator` which
 * is invoked to compare elements of `array`. The order of result values is
 * determined by the order they occur in the array. The comparator is invoked
 * with two arguments: (arrVal, othVal).
 *
 * @param array The array to inspect.
 * @param compareFunction The comparator invoked per element.
 * @return Returns the new duplicate free array.
 * @example
 *
 * const objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 2 }]
 *
 * uniqWith(objects, isEqual)
 * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]
 */
export declare const uniqueWith: <T>(array: T[], compareFunction: (a: T, b: T) => boolean) => T[];