public function getHtml(): string
  {
    if (!isset($this->attributes['action']))
    {
      $this->attributes['action'] = Abc::$request->getRequestUri();
    }

    $this->prepare();

    $html = $this->getHtmlStartTag();

    $html .= $this->getHtmlBody();

    $html .= $this->getHtmlEndTag();

    return $html;
  }