'Return other details about the sensor state.'

@property
def device_state_attributes(self):

    attrs = {}
    if (self._data is not None):
        attrs[ATTR_STATION_CODE] = self._station_code
        attrs[ATTR_CALLING_AT] = self._calling_at
        if self._next_trains:
            attrs[ATTR_NEXT_TRAINS] = self._next_trains
        return attrs
