allOf:
  - $ref: "../../../shared/models/zip5.yml"

  - type: object

    required:
      - id
      - cities
      - zip_code_type
      - object

    properties:
      id:
        $ref: "../attributes/zip_id.yml"

      cities:
        type: array
        items:
          $ref: "zip_lookup_city.yml"
        description: >
          An array of city objects containing valid cities for the `zip_code`.
          Multiple cities will be returned if more than one city is associated with the
          input ZIP code.

      zip_code_type:
        $ref: "../../../shared/attributes/address/zip_code_type.yml"

      object:
        type: string
        description: Value is resource type.
        enum:
          - us_zip_lookup
        default: us_zip_lookup