def GetNodeMetrics(self, request, context):
        """lncli: `getnodemetrics`
        GetNodeMetrics returns node metrics calculated from the graph. Currently
        the only supported metric is betweenness centrality of individual nodes.
        """
        context.set_code(grpc.StatusCode.UNIMPLEMENTED)
        context.set_details('Method not implemented!')
        raise NotImplementedError('Method not implemented!')
lncli: `getnodemetrics`
        GetNodeMetrics returns node metrics calculated from the graph. Currently
        the only supported metric is betweenness centrality of individual nodes.
        
home.admin/config.scripts/lndlibs/lightning_pb2_grpc.py