docs: async def get_data(self):
          """Retrieve the data."""
          try:
              with async_timeout.timeout(5, loop=self._loop):
                  response = await self._session.get(
                      '{}/{}/'.format(self.url, self.sensor_id))
  
              _LOGGER.debug(
                  "Response from luftdaten.info: %s", response.status)
              self.data = await response.json()
              _LOGGER.debug(self.data)
          except (asyncio.TimeoutError, aiohttp.ClientError):
              _LOGGER.error("Can not load data from luftdaten.info")
              raise exceptions.LuftdatenConnectionError()
  
          if not self.data:
              self.values = self.meta = None
              return
  
          try:
              sensor_data = sorted(
                  self.data, key=lambda timestamp: timestamp['timestamp'],
                  reverse=True)[0]
              print(sensor_data)
  
              for entry in sensor_data['sensordatavalues']:
                  for measurement in self.values.keys():
                      if measurement == entry['value_type']:
                          self.values[measurement] = float(entry['value'])
  
              self.meta['sensor_id'] = self.sensor_id
              self.meta['longitude'] = float(
                  sensor_data['location']['longitude'])
              self.meta['latitude'] = float(sensor_data['location']['latitude'])
          except (TypeError, IndexError):
              raise exceptions.LuftdatenError()