openapi: 3.0.0
info:
  title: Test
  description: 'Test'
  license:
    name: 'Apache 2.0'
    url: 'https://www.apache.org/licenses/LICENSE-2.0.html'
  version: '1.0'
servers:
  -
    url: 'https://localhost:8000'
components:
  schemas:
    OneOfParent:
      title: OneOfParent
      properties:
        additionalData:
          oneOf:
            -
              $ref: '#/components/schemas/FirstOneOf'
            -
              $ref: '#/components/schemas/SecondOneOf'
            -
              $ref: '#/components/schemas/ThirdOneOf'
      type: object
    FirstOneOf:
      title: FirstOneOf
      type: object
      allOf:
        -
          $ref: '#/components/schemas/OneOfParent'
        -
          properties:
            numberProp:
              type: number
              example: '1'
          type: object
    SecondOneOf:
      title: SecondOneOf
      type: object
      allOf:
        -
          $ref: '#/components/schemas/OneOfParent'
        -
          properties:
            person:
              properties:
                id:
                  type: string
              type: object
          type: object
    ThirdOneOf:
      title: ThirdOneOf
      type: object
      allOf:
        -
          $ref: '#/components/schemas/OneOfParent'
        -
          properties:
            person:
              properties:
                id:
                  type: string
                name:
                  type: string
                surname:
                  type: string
              type: object
          type: object