Previous value: -nullNew value: +{
+  "additionalProperties": false,
+  "properties": {
+    "data": {
+      "additionalProperties": false,
+      "properties": {
+        "as_of_business_date": {
+          "format": "date",
+          "type": "string"
+        },
+        "bytes": {
+          "minimum": 0,
+          "type": "integer"
+        },
+        "bytes_compressed": {
+          "minimum": 0,
+          "type": "integer"
+        },
+        "catalog_version": {
+          "type": "string"
+        },
+        "etag": {
+          "type": "string"
+        },
+        "expires_at": {
+          "format": "date-time",
+          "type": "string"
+        },
+        "format": {
+          "enum": [
+            "csv",
+            "json"
+          ]
+        },
+        "generated_at": {
+          "format": "date-time",
+          "type": "string"
+        },
+        "market": {
+          "additionalProperties": false,
+          "properties": {
+            "country": {
+              "enum": [
+                "US",
+                "CA"
+              ],
+              "type": "string"
+            },
+            "currency": {
+              "type": "string"
+            },
+            "odometer_unit": {
+              "enum": [
+                "mi",
+                "km"
+              ],
+              "type": "string"
+            }
+          },
+          "required": [
+            "country",
+            "currency",
+            "odometer_unit"
+          ],
+          "type": "object"
+        },
+        "rows": {
+          "minimum": 0,
+          "type": "integer"
+        },
+        "rows_inline": {
+          "items": {
+            "type": "object"
+          },
+          "type": "array"
+        },
+        "schema_version": {
+          "const": 1
+        },
+        "scope": {
+          "anyOf": [
+            {
+              "pattern": "^network:(?:US|CA)$",
+              "type": "string"
+            },
+            {
+              "pattern": "^[a-z0-9](?:[a-z0-9-]{0,61}[a-z0-9])?$",
+              "type": "string"
+            }
+          ]
+        },
+        "snapshot_id": {
+          "pattern": "^[0-9a-f]{24}$",
+          "type": "string"
+        },
+        "sync_cursor": {
+          "type": "string"
+        },
+        "url": {
+          "format": "uri",
+          "type": "string"
+        },
+        "view": {
+          "enum": [
+            "manifest",
+            "summary",
+            "full"
+          ]
+        }
+      },
+      "required": [
+        "snapshot_id",
+        "schema_version",
+        "scope",
+        "view",
+        "format",
+        "generated_at",
+        "as_of_business_date",
+        "rows",
+        "bytes",
+        "bytes_compressed",
+        "etag",
+        "url",
+        "expires_at",
+        "catalog_version"
+      ],
+      "type": "object"
+    },
+    "error": {
+      "additionalProperties": false,
+      "description": "Unknown and foreign thread ids are deliberately indistinguishable: both return invalid_params with message \"unknown thread_id\" (anti-enumeration).",
+      "properties": {
+        "auth_help_url": {
+          "description": "Present only when no credential was supplied for a capability that requires one. Points to human documentation for obtaining a key. Absent for invalid, pending, or disabled credentials, which are deliberately indistinguishable.",
+          "format": "uri",
+          "maxLength": 500,
+          "type": "string"
+        },
+        "code": {
+          "enum": [
+            "rooftop_not_found",
+            "rooftop_inactive",
+            "unit_not_found",
+            "invalid_params",
+            "rate_limited",
+            "upstream_unavailable",
+            "capability_unavailable",
+            "identity_required",
+            "quota_exceeded",
+            "unit_held",
+            "quote_expired",
+            "rooftop_paused",
+            "handoff_duplicate",
+            "idempotency_conflict",
+            "price_unavailable",
+            "snapshot_expired",
+            "artifact_too_large",
+            "cursor_invalid",
+            "cursor_expired",
+            "ambiguous_identity",
+            "unsupported_in_country"
+          ]
+        },
+        "message": {
+          "maxLength": 500,
+          "type": "string"
+        },
+        "retry_after_seconds": {
+          "minimum": 0,
+          "type": "integer"
+        },
+        "retryable": {
+          "type": "boolean"
+        }
+      },
+      "required": [
+        "code",
+        "message",
+        "retryable"
+      ],
+      "type": "object"
+    },
+    "freshness": {
+      "additionalProperties": false,
+      "properties": {
+        "by_rooftop": {
+          "additionalProperties": {
+            "additionalProperties": false,
+            "properties": {
+              "last_ingest_at": {
+                "format": "date-time",
+                "maxLength": 40,
+                "type": [
+                  "string",
+                  "null"
+                ]
+              },
+              "status": {
+                "enum": [
+                  "fresh",
+                  "stale",
+                  "no_data"
+                ]
+              }
+            },
+            "required": [
+              "status",
+              "last_ingest_at"
+            ],
+            "type": "object"
+          },
+          "maxProperties": 500,
+          "type": "object"
+        }
+      },
+      "required": [
+        "by_rooftop"
+      ],
+      "type": "object"
+    }
+  },
+  "type": "object"
+}

Added value: +{
+  "default": "US",
+  "description": "Market to search; rooftops in the other country are excluded. Prices are in that country's currency; the radius stays in miles.",
+  "enum": [
+    "US",
+    "CA"
+  ],
+  "type": "string"
+}