# Client
## Fields
| Field | Type | Required | Description |
| ------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------- |
| `object` | [com.clerk.backend_api.models.components.Object](../../models/components/Object.md) | :heavy_check_mark: | String representing the object's type. Objects of the same type share the same value.
|
| `id` | *String* | :heavy_check_mark: | String representing the identifier of the session.
|
| `sessionIds` | List<*String*> | :heavy_check_mark: | N/A |
| `sessions` | List<[com.clerk.backend_api.models.components.Session](../../models/components/Session.md)> | :heavy_check_mark: | N/A |
| `signInId` | *Optional extends String>* | :heavy_check_mark: | N/A |
| `signUpId` | *Optional extends String>* | :heavy_check_mark: | N/A |
| `lastActiveSessionId` | *Optional extends String>* | :heavy_check_mark: | Last active session_id.
|
| `updatedAt` | *long* | :heavy_check_mark: | Unix timestamp of last update.
|
| `createdAt` | *long* | :heavy_check_mark: | Unix timestamp of creation.
|