{
  "openapi": "3.1.0",
  "info": {
    "version": "1.0.0"
  },
  "components": {
    "schemas": {
      "Foo": {
        "type": "object",
        "properties": {
          "foo": {
            "type": "string"
          },
          "baz": {
            "type": "string"
          }
        }
      },
      "Bar": {
        "type": "object",
        "oneOf": [
          {
            "$ref": "#/components/schemas/Foo"
          }
        ],
        "properties": {
          "bar": {
            "type": "number"
          }
        },
        "required": ["foo", "bar", "baz"]
      }
    }
  }
}