|for\_both|[Bool](/API_docs/types/Bool.html) | Only for [Premium](https://core.telegram.org/api/premium) users, sets the specified wallpaper for both users of the chat, without requiring confirmation from the other user. | Optional|
|revert|[Bool](/API_docs/types/Bool.html) | If we don't like the new wallpaper the other user of the chat has chosen for us using the `for_both` flag, we can re-set our previous wallpaper just on our side using this flag. | Optional|
|peer|[Username, chat ID, Update, Message or InputPeer](/API_docs/types/InputPeer.html) | The private chat where the wallpaper will be set | Optional|
|wallpaper|[InputWallPaper](/API_docs/types/InputWallPaper.html) | The [wallpaper »](https://core.telegram.org/api/wallpapers), obtained as described in the [wallpaper documentation »](https://core.telegram.org/api/wallpapers#uploading-wallpapers); must **not** be provided when installing a wallpaper obtained from a [messageActionSetChatWallPaper](../constructors/messageActionSetChatWallPaper.html) service message (`id` must be provided, instead). | Optional|
|settings|[WallPaperSettings](/API_docs/types/WallPaperSettings.html) | Wallpaper settings, obtained as described in the [wallpaper documentation »](https://core.telegram.org/api/wallpapers#uploading-wallpapers) or from [messageActionSetChatWallPaper](../constructors/messageActionSetChatWallPaper.html).`wallpaper`.`settings`. | Optional|
|id|[int](/API_docs/types/int.html) | If the wallpaper was obtained from a [messageActionSetChatWallPaper](../constructors/messageActionSetChatWallPaper.html) service message, must contain the ID of that message. | Optional|