{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/ChatCompletionMessage.Annotation",
  "title": "ChatCompletionMessage.Annotation",
  "description": "A URL citation when using web search.",
  "properties": {
    "type": {
      "type": "string",
      "enum": [
        "url_citation"
      ],
      "nullable": false,
      "description": "The type of the URL citation. Always `url_citation`."
    },
    "url_citation": {
      "$ref": "#/components/schemas/ChatCompletionMessage.Annotation.URLCitation",
      "description": "A URL citation when using web search."
    }
  },
  "required": [
    "type",
    "url_citation"
  ],
  "type": "object",
  "additionalProperties": false
}