code: private function prepareFixers(ConfigInterface $config): array
      {
          $fixers = $config->getFixers();
  
          foreach ($fixers as $fixer) {
              if ($fixer instanceof ConfigAwareInterface) {
                  $fixer->setConfig($config);
              }
          }
  
          return $fixers;
      }
docs: @param ConfigInterface $config
  
  @return FixerInterface[]