How to scrape lazy loading images using python scrapy

Here is the code which i used for crawling a web page. The site I want to scrape has images lazy loading enabled, so scrapy can only grab 10 out of 100 images, the rest are all placeholder.jpg

for item in items:
    listing = Item()
    listing['image'] =  item.css('div.product img::attr(src)').extract()
    listing['url'] =  item.css('div.item-name a::attr(href)').extract()
    listings.append(listing)

What would be the best way to deal with lazy loading images?

Thanks!