def trim(self):
        """
        Trims leaves from tree that are not observed at highest-resolution level

        This is a bit hacky-- what it does is
        """
        # Only allow leaves to stay on list (highest-resolution) level
        return

        for l in self._levels[-2::-1]:
            for n in l:
                if n.is_leaf:
                    n.parent.remove_child(n.label)

        self._clear_all_leaves()
Trims leaves from tree that are not observed at highest-resolution level

        This is a bit hacky-- what it does is