openapi: 3.0.1
info:
  title: Test API
  version: 1.0.0
paths:
  /pets:
    post:
      operationId: addPet
      requestBody:
        content:
          application/json:
            schema:
              type: object
              properties:
                name:
                  type: string
                  x-extensible-enum:
                    - available
                    - pending
                    - sold 
      responses:
        "200":
          description: OK

