public function collect(Request $request, Response $response, \Exception $exception = null)
 {
     $this->data['context'] = $this->manager->getContext();
     $this->data['features'] = [];
     $this->data['feature_providers'] = [];
     foreach ($this->manager->getFeatureSet()->getAllCanonical() as $name => $feature) {
         $this->data['features'][$name] = $feature->getStatus();
         $this->data['feature_providers'][$name] = $feature->getProvider()->getName();
     }
 }