docs: async def fetch_device_list(self):
          """Fetch list of devices."""
          url = '{}/users/me'.format(API_URL)
  
          dlist = await self.api_get(url)
          if dlist is None:
              _LOGGER.error('Unable to fetch eight devices.')
          else:
              self._devices = dlist['user']['devices']
              _LOGGER.debug('Devices: %s', self._devices)