1description: >
2    Implement to provide custom properties added to an item by the
3    item vendor.
4properties:
5    - name: CustomField1
6      type: string
7      description: >
8          The custom field 1 of the item.
9    - name: CustomField2
10      type: string
11      description: >
12          The custom field 2 of the item.
13