def __div__(self, next):
        """Looks up a descendant of this actor.

        Raises `LookupFailed` if this is a local ref and the descendant was not found.

        """
        # local and not dead
        if self.is_local and self._cell:
            return self._cell.lookup_ref(next)
        # non-local or dead
        else:
            return Ref(cell=None, uri=self.uri / next, is_local=self.is_local,
                       node=None if self.is_local else self.node)
dataset/ETHPy150Open eallik/spinoff/spinoff/actor/ref.py/_BaseRef.__div__/original