/**
  * @param $identifier
  * @param $headline
  * @param $helpUrl
  * @param $actionUrl
  * @return string
  * @throws IfwPsn_Wp_Plugin_Exception
  */
 public static function getImportForm($identifier, $headline, $helpUrl, $actionUrl)
 {
     $helpText = sprintf(__('Need help? <a href="%s" target="_blank">Check the docs</a>.', 'psn'), IfwPsn_Wp_Plugin_Manager::getInstance('Psn')->getConfig()->plugin->docUrl . $helpUrl);
     $options = array('headline' => $headline, 'help_text' => $helpText, 'action_url' => $actionUrl, 'import_file_label' => __('Import file', 'psn'), 'import_file_description' => __('Please select a valid .xml export file.', 'psn'), 'import_prefix_label' => __('Import prefix (optional)', 'psn'), 'import_prefix_description' => __('Prepend this text to imported items names to identify them.', 'psn'), 'wait_text_headline' => __('Processing file', 'psn'), 'wait_text_description' => __('Please wait while the export file is being processed ...', 'psn'));
     return IfwPsn_Wp_Data_Importer::getForm(IfwPsn_Wp_Plugin_Manager::getInstance('Psn'), $identifier, $options);
 }