public function processImportJobFromFile($list, $file_path, $report_email = false, $postback_url = false, array $options = [ ]) {
        $data = [
            'file' => $file_path,
            'list' => $list
        ];
        return $this->processJob('import', $data, $report_email, $postback_url, [ 'file' ], $options);
    }