# defaultHistoryTTL

Contains info about the default value of the Time-To-Live setting, applied to all new chats.

```tl
defaultHistoryTTL#43b46b20 period:int = DefaultHistoryTTL;
```

### Parameters

| Name | Type | Description |
| --- | :---: | --- |
| **period** | [int](/type/int.md) | Time-To-Live setting applied to all new chats. |

### Type
[DefaultHistoryTTL](/type/DefaultHistoryTTL.md)