ads := s.ConnectADS()

		ads.RequestResponseAck(t, &discovery.DiscoveryRequest{TypeUrl: v3.ClusterType})
		ads.RequestResponseAck(t, &discovery.DiscoveryRequest{TypeUrl: v3.ListenerType})
		ads.RequestResponseAck(t, &discovery.DiscoveryRequest{
			TypeUrl:       v3.EndpointType,
			ResourceNames: []string{"outbound|9080||app2.default.svc.cluster.local"},
		})

		return "NDS"
	case ProxyConfigType:
		return "PCDS"
	case ExtensionConfigurationType:
		return "ECDS"
	case AddressType, WorkloadType:
		return "WDS"
	case WorkloadAuthorizationType:
		return "WADS"
	default:
		return typeURL
	}
}

// GetMetricType returns the form of a type reported for metrics
func GetMetricType(typeURL string) string {
	switch typeURL {
	case ClusterType:
		return "cds"

{
    "outbound|2000||s1tcp.none": {
      "name": "outbound|2000||s1tcp.none",
      "type": 3,
      "eds_cluster_config": {
        "eds_config": {
          "ConfigSourceSpecifier": {
            "Ads": {}
          }
        },
        "service_name": "outbound|2000||s1tcp.none"
      },
      "connect_timeout": 1000000000,
      "circuit_breakers": {
        "thresholds": [
          {
            "max_retries": {

digraph {
    envoy -> sds [dir=both, label="SDS"]
    envoy -> xdsproxy  [dir=both, label="ADS"]

    sds -> ca [label="CSR"]

    xdsproxy -> discovery [dir=both,label="ADS"]

    envoy [shape=hexagon, color=purple]

    subgraph cluster_istioagent {
        label = "Istio Agent"
        color="orange"
        sds
        xdsproxy
    }

    subgraph cluster_istiod {
        label = "Istiod"
        color="lightblue"

            }
          }
        ],
        "http2_protocol_options": {}
      }
    ]
  },
  "dynamic_resources": {
    "lds_config": {
      "ads": {}
     },
    "cds_config": {
      "ads": {}
    },
    "ads_config": {
      "api_type": "GRPC",
      "grpc_services": {
        "envoy_grpc": {
          "cluster_name": "xds-grpc"
        }
      },

              "admin_layer": {}
          }
      ]
  },
  "dynamic_resources": {
    "lds_config": {
      "resource_api_version": "V3",
      "ads": {}
     },
    "cds_config": {
      "resource_api_version": "V3",
      "ads": {}
    },
    "ads_config": {
      "api_type": "GRPC",
      "transport_api_version": "V3",
      "grpc_services": {
        "envoy_grpc": {

	for i = 0; i < out; i++ {
		if outputS[i] != u8(i+13) {
			badS("beforeS", i, length, in, out)
			return
		}
	}
	// copied part
	for ; i < out+n; i++ {
		if outputS[i] != u8(i+in-out) {
			badS("copiedS", i, length, in, out)
			return
		}
	}
	// after
	for ; i < len(outputS); i++ {
		if outputS[i] != u8(i+13) {
			badS("afterS", i, length, in, out)
			return
		}
	}
}

      {{ end }}
    },
    "metadata": {{ .meta_json_str }}
  },
  "dynamic_resources": {
    "lds_config": {
      "resource_api_version": "V3",
      "ads": {}
    },
    "cds_config": {
      "resource_api_version": "V3",
      "ads": {}
    },
    "ads_config": {
      "api_type": "GRPC",
      "transport_api_version": "V3",
      "grpc_services": [
        {
          "google_grpc": {

                                    "title": "Ads Id",
                                }
                            )
                            | IsDict(
                                # TODO: remove when deprecating Pydantic v1
                                {"title": "Ads Id", "type": "string"}
                            ),
                            "name": "ads_id",

	for i, good := range goods {
		if err := checkMono(t, good); err != nil {
			t.Errorf("%d: unexpected failure: %v", i, err)
		}
	}
}

func TestMonoBad(t *testing.T) {
	for i, bad := range bads {
		if err := checkMono(t, bad); err == nil {
			t.Errorf("%d: unexpected success", i)
		} else {
			t.Log(err)
		}
	}
}

var goods = []string{
	"func F[T any](x T) { F(x) }",