How to get the automatic response advice given in search input in Yahoo Finance?

I"m trying to cram data on https://finance.yahoo.com/. I found that if you type a few letters in the search bar, there will be a result that suggests popping up. Similar to Google and Baidu.

I want to get down on my stomach with this suggestion. I found a list element whose child elements should be suggestions.

/ / * [@ id= "search-assist-input"] / div [2] / ul

however, when I use Firefox or Chrome to look at the child elements of this element, the suggestion automatically disappears, and then the element automatically has no child elements.

I try to select all the child elements directly with selenium, showing that there are no elements.
the Chrome here is a class I made, and basically wrapper, returns a selenium chrome webdriver with get_driver

.
from chrome_driver.chrome import Chrome

driver = Chrome().get_driver()
driver.get("https://finance.yahoo.com/")

driver.find_elements_by_xpath("//div[@id="search-assist-input"]/div/input")[0].send_keys("goog")

x = driver.find_elements_by_xpath("//div[@data-reactid="56"]/ul[@data-reactid="57"]/")

search suggestion results are generated dynamically using js.
you can directly observe which api it is requested from.
for example, search hello , you can directly request
https://finance.yahoo.com/_finance_doubledown/api/resource/searchassist;searchTerm=hello
, then the code can be written like this:

   

Menu