code: public function normalize($supplier, $format = null, array $context = [])
      {
          $data = parent::normalize($supplier, $format, $context);
  
          if ($this->contextHasGroup('Summary', $context)) {
              $data = array_replace($data, [
                  'description' => $supplier->getDescription(),
              ]);
          }
  
          return $data;
      }
docs: @inheritdoc
  
  @param SupplierInterface $supplier