code: public function isActive($name, Context $context = null)
      {
          if ($context === null) {
              $context = new Context();
          }
  
          if ($this->decorator !== null) {
              $context = $this->decorator->decorate($context);
          }
  
          return $this->activator->isActive($name, $context);
      }
docs: {@inheritdoc}