[Setup help] Where I get YourProjectSchema() ?

[elvismdev]

I've trying something like this but seems like I'm passing the wrong thing.

// Register database.
$app->register( new DoctrineServiceProvider(), array( 'db.options' => $app['yml_config']['database'] ) );
// Register Doctrine ORM Service Provider.
$app->register( new DoctrineOrmServiceProvider(), array(
	'orm.proxies_dir'			=> __DIR__ . '/Entity/Proxy',
	'orm.auto_generate_proxies'	=> $app['debug'],
	'orm.em.options'			=> array(
		'mappings' => array(
			array(
				'type'							=> 'annotation',
				'namespace'						=> __NAMESPACE__ . '\\Entity\\',
				'path'							=> __DIR__ . '/Entity',
				'use_simple_annotation_reader'	=> false
				)
			)
		)
	));

// I'm missing something here like $app['orm.em']->getProjectSchema() ?
$schema = $app['orm.em'];
// Mount GraphQL endpoint.
$app->mount('/graphql', new GraphQLControllerProvider($schema));

Coming from the example in the readme still not very clear for me, from where comes or do I get YourProjectSchema() within my existing Silex project code ?

Thanks