openapi: 3.0.0
components:
  schemas:
    object1:
      type: object
      description: an object schema
      properties:
        one_of_error_prop:
          description: oneOf should be array
          schema:
            oneOf:
              type: string
        all_of_error_prop:
          description: allOf should be array
          schema:
            allOf:
              type: string
        any_of_error_prop:
          description: anyOf should be array
          schema:
            anyOf:
              type: string