code: def count_cookies(self, domain):
          '''Return the number of cookies for the given domain.'''
          cookies = self.cookie_jar._cookies
  
          if domain in cookies:
              return sum(
                  [len(cookie) for cookie in cookies[domain].values()]
              )
          else:
              return f count_cookies(self, domain):
          '''Return the number of cookies for the given domain.'''
          cookies = self.cookie_jar._cookies
  
          if domain in cookies:
              return sum(
                  [len(cookie) for cookie in cookies[domain].values()]
              )
          else:
              return 0
docs: Return the number of cookies for the given domain.