<?php
namespace Mtc\Core;
/**
 * Created by PhpStorm.
 * User: Jack Donaldson
 * Date: 13/03/2017
 * Time: 11:28
 */
interface Postcode
{
    /**
     *   Perform Validation of a postcode
     *   This function should return true on completion,
     *   false on failure.
     *
     * @return bool
     */
    public function validates();

    public function __toString();

    public function normalize($postcode_string);
}
