--- title: messageChatSetTtl description: Messages ttl setting in secret chat has changed --- ## Constructor: messageChatSetTtl [Back to constructors index](index.md) Messages ttl setting in secret chat has changed ### Attributes: | Name | Type | Required | Description | |----------|---------------|----------|-------------| |ttl|[int](../types/int.md) | Yes|New ttl| ### Type: [MessageContent](../types/MessageContent.md) ### Example: ``` $messageChatSetTtl = ['_' => 'messageChatSetTtl', 'ttl' => int]; ``` [PWRTelegram](https://pwrtelegram.xyz) json-encoded version: ``` {"_": "messageChatSetTtl", "ttl": int} ``` Or, if you're into Lua: ``` messageChatSetTtl={_='messageChatSetTtl', ttl=int} ```