---
type: object
properties:
  item_group_id:
    type: integer
    readOnly: true
    description: Internal identifier for the item group
  biblio_id:
    type: integer
    readOnly: true
    description: Internal identifier for the parent bibliographic record
  description:
    type: string
    description: Item group description
  display_order:
    type: integer
    description: Item group description
  creation_date:
    type: string
    format: date-time
    readOnly: true
    description: Date and time the item group was created
  modification_date:
    type: string
    format: date-time
    readOnly: true
    description: Date and time the item group was last modified
  items:
    type:
    - array
    - 'null'
    readOnly: true
    description: A list of items that belong to the volume (x-koha-embed)
additionalProperties: false
required:
- item_group_id
- biblio_id