def _override_or_child_attr(self, attr_name):
        """Return either the override or the active child for attr_name."""
        if self._attrs in attr_name:
            return self._entity_lkp(self._attrs[attr_name][0],
                                    self._attrs[attr_name][1])

        return self._child_attr(attr_name)
dataset/ETHPy150Open home-assistant/home-assistant/homeassistant/components/media_player/universal.py/UniversalMediaPlayer._override_or_child_attr/swapped operands of `in`