def METHOD_NAME(self, msg_obj, *args, **kwargs):
    if not self.phone_number_is_valid(msg_obj.phone_number):
        msg_obj.set_system_error(SMS.ERROR_INVALID_DESTINATION_NUMBER)
        return
    response = requests.get(
        self.url,
        params=self.get_params(msg_obj),
        timeout=settings.SMS_GATEWAY_TIMEOUT,
    )
    self.handle_response(msg_obj, response.status_code, response.text)