expected_fields:
  - availability_zone
  - container
  - created_at
  - data_timestamp
  - description
  - fail_reason
  - force
  - has_dependent_backups
  - id
  - is_incremental
  - links
  - metadata
  - name
  - object_count
  - project_id
  - size
  - snapshot_id
  - status
  - updated_at
  - user_id
  - volume_id