Defines the authenticator specific parameters
| Name | Type | Description | Notes |
|---|---|---|---|
| ExpiresAt | DateTimeOffset | The time when the TAC enrollment expires in the UTC timezone | [optional] |
| MultiUse | bool | Determines whether an enrollment can be used more than once | [optional] |
| Tac | string | A temporary access code used for authentication. It can be used one or more times and is valid for a defined period specified by the `ttl` property. The `tac` is returned in the response when the enrollment is created. It is not returned when the enrollment is retrieved. Issuing a new TAC invalidates any existing TAC for this user. | [optional] |