swagger: "2.0"
info:
  title: test
  version: 1.0.0
paths:
  /foo1:
    get:
      summary: Response without a schema
      produces:
        - application/json
      responses:
        200:
          description: Successful response
          examples:
            application/json:
              foo: custom value
  /foo2:
    get:
      summary: Response with schema
      produces:
        - application/json
      responses:
        200:
          description: Successful response
          schema:
            $ref: '#/definitions/Foo'
          examples:
            application/json:
              foo: custom value

definitions:
  Foo:
    type: object
    properties:
      foo:
        type: string
        example: bar