code: def p_information_speed_duration(self, p):
          'information : speed FOR duration'
          logger.debug('information = speed %s for duration %s', p[1], p[3])
          p[0] = p[1].for_duration(p[3]f p_information_speed_duration(self, p):
          'information : speed FOR duration'
          logger.debug('information = speed %s for duration %s', p[1], p[3])
          p[0] = p[1].for_duration(p[3])
docs: information : speed FOR duration