protected function parseUserId($info) {
    // Find the row containing "User ID : xxx".
    preg_match('/User ID\s+:\s+\d+/', $info, $matches);
    if (!empty($matches)) {
      // Extract the ID from the row.
      list(, $uid) = explode(':', $matches[0]);
      return (int) $uid;
    }
  }