code: public function setWhitespacesConfig(WhitespacesFixerConfig $config)
      {
          parent::setWhitespacesConfig($config);
  
          foreach ($this->proxyFixers as $fixer) {
              if ($fixer instanceof WhitespacesAwareFixerInterface) {
                  $fixer->setWhitespacesConfig($config);
              }
          }
      }
docs: {@inheritdoc}