code: public function syncFiles($href, $label, $title, $class, $attributes)
  	{
  		return $this->User->hasAccess('f6', 'fop') ? '<a href="'.$this->addToUrl($href).'" title="'.Contao\StringUtil::specialchars($title).'" class="'.$class.'"'.$attributes.'>'.$label.'</a> ' : '';
  	}
docs: Return the sync files button
  
  @param string $href
  @param string $label
  @param string $title
  @param string $class
  @param string $attributes
  
  @return string