| Name | Type | Description | Notes |
|---|---|---|---|
| operation | string | Whether to add or remove users | |
| identifier_type | string | What type of identifiers are used | |
| identifiers | \criteo\api\marketingsolutions\preview\Model\UserDef[] | The users to add or remove, each in the schema specified, defined with attributes | |
| gum_caller_id | object | The Gum caller id of the advertiser patching identifiers of type Gum | [optional] [readonly] |