code: private function getHeaderAsComment()
      {
          $lineEnding = $this->whitespacesConfig->getLineEnding();
  
          $comment = (self::HEADER_COMMENT === $this->configuration['comment_type'] ? '/*' : '/**').$lineEnding;
          $lines = explode("\n", str_replace("\r", '', $this->configuration['header']));
  
          foreach ($lines as $line) {
              $comment .= rtrim(' * '.$line).$lineEnding;
          }
  
          return $comment.' */';
      }
docs: Enclose the given text in a comment block.
  
  @return string