types:
  ContainerValue:
    union:
      list: list<FieldValue>
      optional: optional<FieldValue>
  PrimitiveValue:
    enum:
      - STRING
      - NUMBER
  ObjectValue:
    properties: {}
  FieldName: string
  FieldValue:
    union:
      primitive_value: PrimitiveValue
      object_value: ObjectValue
      container_value: ContainerValue
  ObjectFieldValue:
    docs: This type allows us to test a circular reference with a union type (see FieldValue).
    properties:
      name: FieldName
      value: FieldValue