@property
    def node(self):
        """
        Settable property used by Node.prefetch_tree to optimize tree
        rendering
        """
        if hasattr(self, '_node'):
            return self._node
        try:
            return self._nodes.all()[0]
        except __HOLE__:
            raise Node.DoesNotExist
dataset/ETHPy150Open fusionbox/django-widgy/widgy/models/base.py/Content.node