/**
  * @param Manager $manager
  * @return array<array<WritableProviderInterface|Form>>
  */
 protected function getForms(Manager $manager)
 {
     $forms = [];
     foreach ($manager->getFeatureSet()->getAll() as $name => $_) {
         $forms[$name] = [];
         foreach ($manager->getProviders() as $provider) {
             /**
              * @var ProviderInterface $provider
              */
             if (!$provider instanceof WritableProviderInterface) {
                 continue;
             }
             $providerName = $provider->getName();
             $feature = $manager->getFeatureSet()->getFeatureFromProvider($name, $provider, new Feature($name, null, $provider));
             $form = $this->createForm(new FeatureType($providerName, $name, $manager), $feature);
             $forms[$name][$providerName] = ['provider' => $provider, 'form' => $form];
         }
     }
     return $forms;
 }