{
    "$id": "https://spec.openapis.org/oas/3.1/meta/base",
    "$schema": "https://json-schema.org/draft/2020-12/schema",
    "$vocabulary": {
        "https://spec.openapis.org/oas/3.1/vocab/base": true
    },
    "$dynamicAnchor": "meta",
    "title": "OAS Base vocabulary",

    "type": ["object", "boolean"],
    "properties": {
        "example": true,
        "discriminator": { "$ref": "#/$defs/discriminator" },
        "externalDocs": { "$ref": "#/$defs/external-docs" },
        "xml": { "$ref": "#/$defs/xml" }
    },
    "$defs": {
        "extensible": {
            "patternProperties": {
                "^x-": true
            }
        },
        "discriminator": {
            "$ref": "#/$defs/extensible",
            "type": "object",
            "properties": {
                "propertyName": {
                    "type": "string"
                },
                "mapping": {
                    "type": "object",
                    "additionalProperties": {
                        "type": "string"
                    }
                }
            },
            "required": ["propertyName"],
            "unevaluatedProperties": false
        },
        "external-docs": {
            "$ref": "#/$defs/extensible",
            "type": "object",
            "properties": {
                "url": {
                    "type": "string",
                    "format": "uri-reference"
                },
                "description": {
                    "type": "string"
                }
            },
            "required": ["url"],
            "unevaluatedProperties": false
        },
        "xml": {
            "$ref": "#/$defs/extensible",
            "type": "object",
            "properties": {
                "name": {
                    "type": "string"
                },
                "namespace": {
                    "type": "string",
                    "format": "uri"
                },
                "prefix": {
                    "type": "string"
                },
                "attribute": {
                    "type": "boolean"
                },
                "wrapped": {
                    "type": "boolean"
                }
            },
            "unevaluatedProperties": false
        }
    }
}