def _mpp_cluster_loader(self, path: Any) -> Dict[int, Cluster]:
        """Load and build all PostgreSQL clusters from a single MPP cluster.

        :param path: the path in DCS where to load Cluster(s) from.

        :returns: all MPP groups as :class:`dict`, with group IDs as keys and :class:`Cluster` objects as values.
        """
Load and build all PostgreSQL clusters from a single MPP cluster.

        :param path: the path in DCS where to load Cluster(s) from.

        :returns: all MPP groups as :class:`dict`, with group IDs as keys and :class:`Cluster` objects as values.
        
patroni/dcs/__init__.py