{
  "openapi": "3.0.1",
  "info": {
    "title": "API definition with a circular $ref",
    "version": "1.0.0"
  },
  "servers": [
    {
      "url": "https://httpbin.org"
    }
  ],
  "paths": {
    "/anything": {
      "get": {
        "responses": {
          "200": {
            "description": "OK"
          },
          "404": {
            "description": "Not found",
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/ErrorMessage"
                }
              }
            }
          }
        }
      }
    }
  },
  "components": {
    "schemas": {
      "ErrorMessage": {
        "type": "object",
        "additionalProperties": false,
        "properties": {
          "statusCode": {
            "type": "integer",
            "format": "int32"
          },
          "error": {
            "type": "string",
            "nullable": true
          },
          "inner": {
            "$ref": "#/components/schemas/ErrorMessage"
          },
          "canBeRetried": {
            "type": "string",
            "enum": ["Unknown", "Yes", "No"]
          },
          "detailedErrorCode": {
            "type": "integer",
            "format": "int32"
          }
        }
      }
    }
  }
}