public static function addRow(DetailTable $table, $header, ?string $htmlSnippet): void
  {
    if ($htmlSnippet!==null && $htmlSnippet!=='')
    {
      $table->addRow($header, ['class' => 'html'], $htmlSnippet, true);
    }
    else
    {
      $table->addRow($header);
    }
  }