# yii\debug\models

> 1 class of the yii\debug\models namespace.

[API reference](/docs/api/index.md) › [Debug](/docs/extensions/debug/reference/index.md) › models

## Namespaces

| Namespace | Types |
| --- | --- |
| [`yii\debug\models\router`](/docs/extensions/debug/reference/models/router/index.md) | 2 |
| [`yii\debug\models\search`](/docs/extensions/debug/reference/models/search/index.md) | 9 |

## Classes

| Class | Summary |
| --- | --- |
| [`UserSwitch`](/docs/extensions/debug/reference/models/userswitch/index.md) | Backs the user-impersonation workflow by swapping the active session identity to another user. |