code: def _call(self, method, **kwargs):
          
          kwargs.update(dict(
              partnerid=self.partner_id,
              partnerkey=self.partner_key,
              method=method,
          ))
  
          url = options.ENDPOINT_URL + '?' + parse.urlencode(kwargs)
          try:
              raw_json = request.urlopen(url, timeout=self.timeout).read().decode('utf-8')
              res = json.loads(raw_json)
              if 'code' in res:
                  if res['code'] == 4:
                      raise InvalidCredentialsException(res['msg'])
          except (HTTPError, URLError, timeout) as e:  # ошибка запроса
              raise APIRequestException(e.__class__.__name__, e)
          except (ValueError, ) as e:  # ошибка в данных
              raise APIDataException(e.__class__.__name__, e)
          return res, raw_json
docs: Вызов метода API