code: def cookie_length(self, domain):
          '''Return approximate length of all cookie key-values for a domain.'''
          cookies = self.cookie_jar._cookies
  
          if domain not in cookies:
              return 0
  
          length = 0
  
          for path in cookies[domain]:
              for name in cookies[domain][path]:
                  cookie = cookies[domain][path][name]
                  length += len(path) + len(name) + len(cookie.value or '')
  
          return lengtf cookie_length(self, domain):
          '''Return approximate length of all cookie key-values for a domain.'''
          cookies = self.cookie_jar._cookies
  
          if domain not in cookies:
              return 0
  
          length = 0
  
          for path in cookies[domain]:
              for name in cookies[domain][path]:
                  cookie = cookies[domain][path][name]
                  length += len(path) + len(name) + len(cookie.value or '')
  
          return length
docs: Return approximate length of all cookie key-values for a domain.