def add_async_request(self, method, relative_url, headers, body, source_ip,
                        server_name=None, version=None, instance_id=None):
    raise NotImplementedError()
Update state of entity.
dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/api/request_info.py/Dispatcher.add_async_request--crossover with--dataset/ETHPy150Open home-assistant/home-assistant/homeassistant/components/device_tracker/__init__.py/Device.update