<?php
use Narno\Gandi\Api as GandiAPI;

try {
    $api = new GandiAPI();
    // set API key
    $params = ['your_api_key'];
    // fetches account informations...
    $account = $api->account->info($params);
    // and print
    print_r($account);
} catch (\Exception $e) {
    echo $e->getMessage();
}