gistfile1.aw

<?php
// [...]
$loader->registerNamespaces(array(
    // [...]
    'lapistano' => __DIR__.'/../vendor/proxy-object/src/lapistano',
));

// [...]
// this one's important! you need it only with PHPUnit, so there's a condition
if (class_exists('PHPUnit_Runner_Version')) {
    require_once __DIR__.'/../vendor/proxy-object/bootstrap.php';
}