gistfile1.php

<?php
        //never do this for read, use __construct dependency injection
        $r = new ReflectionObject($app);
        $prop = $r->getProperty('_objectManager');
        $prop->setAccessible(true);
        $manager = $prop->getValue($app);
        
        //generates a factory, assuming `Pulsestorm\Helloworld\Test` exists
        $factory = $manager->get('Pulsestorm\Helloworld\TestFactory');