Reload the metadata for this cluster.

        For example:

        .. literalinclude:: snippets.py
            :start-after: [START bigtable_reload_cluster]
            :end-before: [END bigtable_reload_cluster]

def reload(self):
        """Reload the metadata for this cluster.

        For example:

        .. literalinclude:: snippets.py
            :start-after: [START bigtable_reload_cluster]
            :end-before: [END bigtable_reload_cluster]
        """
        cluster_pb = self._instance._client.instance_admin_client.get_cluster(self.name)

        # NOTE: _update_from_pb does not check that the project and
        #       cluster ID on the response match the request.
        self._update_from_pb(cluster_pb)