Args:
            - text(str): description
            - screenshot: Bool or PIL.Image object

def info(self, text, screenshot=None):
        """
        Args:
            - text(str): description
            - screenshot: Bool or PIL.Image object
        """
        step = {
            'time': '%.1f' % (time.time()-self.start_time,),
            'action': 'info',
            'description': text,
            'success': True,
        }   
        if screenshot:
            step['screenshot'] = self._take_screenshot(screenshot, name_prefix='info')
        self.steps.append(step)