Make a dictionary mapping kind ids to the names.

def _init_kind_converter(self):
        """Make a dictionary mapping kind ids to the names."""
        from ..utils import invert_dict

        kinds = self.session.query(Kind).all()
        self._kind_id_to_name = {
            kind.id: kind.name for kind in kinds
        }
        self._kind_name_to_id = invert_dict(self._kind_id_to_name)