How to make delay for one certain Request in Scrapy

torgi_lands_spider.py

@defer.inlineCallbacks
def parse_next_page(self, response):
    log.msg('Test: in parse_next_page, status=%s' % response.status, level=log.WARNING)
    res = []
    if response.status != 302:
        text = ''
        try:
            text = response.xpath('./component/text()').extract()[0]
        except:
            pass
        table = Selector(text=text).xpath('.//table[starts-with(@id, "id")]/tbody/tr')
        for resp in self.parse_lot_list(table):
            r = yield resp
            res.append(r)
        self.page_number += 1
    # Вычисление начальной страницы
    o = urlparse(response.url)
    url = o.scheme + '://' + o.netloc + o.path + '?bidKindId=2'
    req = Request(url, callback=self.goto_next_page, dont_filter=True,)
    if response.status != 302:
        r = yield req
    else:
        r = yield self.later(req, timeout=20)
    res.append(r)
    defer.returnValue(res)
    
    
def later(self, result, timeout):
    d = defer.Deferred()
    reactor.callLater(timeout, d.callback, result)
    return d