<?php

/*
 * This file is part of Chevere.
 *
 * (c) Rodolfo Berrios <rodolfo@chevere.org>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

declare(strict_types=1);

namespace Chevere\DataStructure\Interfaces;

/**
 * Describes the component in charge of providing an interface exposing string|int keys.
 */
interface StringIntKeysInterface
{
    /**
     * @return array<string|int>
     */
    public function keys(): array;
}
