{
  "openapi": "3.0.0",
  "info": {
    "title": "",
    "version": ""
  },
  "paths": {
    "/Foos": {
      "get": {
        "responses": {
          "200": {
            "description": "",
            "content": {
              "application/json": {
                "schema": {
                  "type": "object",
                  "$ref": "#/components/schemas/foo"
                }
              }
            }
          }
        }
      }
    }
  },
  "components": {
    "schemas": {
      "foo": {
        "type": "object",
        "properties": {
          "first": {
            "anyOf": [{ "type": "number" }, { "type": "string" }],
            "title": "1st"
          }
        }
      }
    }
  }
}