docs: def update_state(self, cache=True):
          """Update the internal state of the Sesame."""
          self.use_cached_state = cache
  
          endpoint = API_SESAME_ENDPOINT.format(self._device_id)
          response = self.account.request('GET', endpoint)
          if response is None or response.status_code != 200:
              return
  
          state = json.loads(response.text)
          self._nickname = state['nickname']
          self._is_unlocked = state['is_unlocked']
          self._api_enabled = state['api_enabled']
          self._battery = state['battery']