Serpapi not showing ad results

Question

I am using the following python code to get the ad results for a query:

However, there are no ad results coming through on the response. When I google search "pest control" I see that there are search ads.

Is there a reason serpapi is not capturing the ad postings?

from serpapi import GoogleSearch

params = {
  "q": "pest control",
  "location": "Halifax, Nova Scotia, Canada",
  "hl": "en",
  "gl": "ca",
  "api_key": "API_KEY"
}

search = GoogleSearch(params)
results = search.get_dict()
ads = results["ads"]

print(ads)

I used the above code to find the ads

Answer 1

It depends on Google search results and how the ads are set up. As @mark suggested, ads are shown in search without location (gl and hl) parameters.