code: def get_last_result(self):
          
          # Retrieve the conversion register value, convert to a signed int, and
          # return it.
          result = self._device.readList(ADS1x15_POINTER_CONVERSION, 2)
          return self._conversion_value(result[1], result[0])
docs: Read the last conversion result when in continuous conversion mode.
          Will return a signed integer value.