import type { Comparer } from '../../types/Comparer.js';
/**
 * Returns an array that contains all of the elements of this array that are
 * unique based on the defined comparer function.
 *
 * @param comparerFn - An optional function that accepts two arguments.
 *  The distinct method calls the comparerFn function to determine the
 *  equality of values. Triple equal `===` comparison is used by default.
 *
 * @returns A new array with the results
 */
export declare const distinct: <T>(arr: readonly T[], arg1?: Comparer<T>) => Array<T>;