Comparable.php

<?php
 
/*
 * Copyright (C) 2016 Sebastian Böttger <seboettg@gmail.com>
 * You may use, distribute and modify this code under the
 * terms of the MIT license.
 *
 * You should have received a copy of the MIT license with
 * this file. If not, please visit: https://opensource.org/licenses/mit-license.php
 */
 
namespace Seboettg\Collection;
 
interface Comparable {
 
    public function compareTo(Comparable $b);
 
}