| Name | Type | Description | Notes |
|---|---|---|---|
| allow_defined_only | bool | Restricts the creation of metadata fields when set to `true`. In other words, it indicates whether or not you are allowed to create new metadata definitions; for example, in the campaign manager or publication manager. If it is set to true, then only the defined fields will be available for assigning values. | [optional] |
| properties | object | Contains metadata definitions. There can be many properties within this object. Only the properties sent in the request will be updated. However, if you send a property, all its key-value pairs must be provided - otherwise, they will be overwritten to new values. You cannot change the `"type"` property. However, it is required, so you need to add it to the request. | [optional] |