Piwik 2.0 Hello World Tutorial - API.php

API.php

<?php
/**
 * HelloWorld plugin for Piwik 2.0
 *
 * @author Sean Pinegar
 * @link http://seanpinegar.com
 * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
 *
 * @category Piwik_Plugins
 * @package HelloWorld
 */
namespace Piwik\Plugins\HelloWorld;

use Piwik\Plugin\API as BaseAPI;
use Piwik\Piwik;

/**
 * API for plugin HelloWorld Plugin
 *
 * @package Piwik_HelloWorld
 */
class API extends BaseAPI
{
    /**
     * Index API Method
     *
     * @return string
     */
    public function index()
    {
        return Piwik::translate("HelloWorld_PluginDescription");
    }
}