docs: def _get_bios_settings_resource(self, data):
          """Get the BIOS settings resource."""
          try:
              bios_settings_uri = data['links']['Settings']['href']
          except KeyError:
              msg = ('BIOS Settings resource not found.')
              raise exception.IloError(msg)
  
          status, headers, bios_settings = self._rest_get(bios_settings_uri)
          if status != 200:
              msg = self._get_extended_error(bios_settings)
              raise exception.IloError(msg)
  
          return headers, bios_settings_uri, bios_settings