"etcd_grpc_requests_total": {
				rewriters: []rewriteFunc{
					func(mf *dto.MetricFamily) (*dto.MetricFamily, error) {
						mf = deepCopyMetricFamily(mf)
						renameLabels(mf, map[string]string{
							"grpc_method":  "method",
							"grpc_service": "service",
						})
						return mf, nil
					},
				},
			},
			// etcd 3.1+ metric format for total grpc requests.
			"grpc_server_handled_total": {