def __has_next_page(self, current_page_num=0):
        """ this is an example for debug purpose only...
        """
        try:
            next_page = self.robot.get_elements(
                self.base.get('next_page'),
                multiple=True
            )
            log.debug('<Site> has {} next page elems'.format(len(next_page)))
            if not next_page:
                return False
            for i, ele in enumerate(next_page):
                if ele.get_attribute('innerText') == 'Next':
                    log.debug('<Site> {} is the right link'.format(i))
                    self.next_page = ele
                    break
            return True
        except Exception as _:
            self.next_page = None
            return False
this is an example for debug purpose only...