"key": "x-goog-user-project",
              "value": "{{ .gcp_project_id }}"
            }
          {{ end }}
          {{ end }}
          ]
        }
      ]
    }
  },
  "cluster_manager": {
    "load_stats_config": {
      "api_type": "GRPC",
      "transport_api_version": "V3",
      "grpc_services": [
        {
          "google_grpc": {
            "target_uri": "{{ .discovery_address }}",