You can directly provide the [Update](Update.md) or [Message](Message.md) object here, MadelineProto will automatically extract the destination chat id.
The following syntaxes can also be used:
```
$InputPeer = '@username'; // Username
$InputPeer = 'me'; // The currently logged-in user
$InputPeer = 44700; // bot API id (users)
$InputPeer = -492772765; // bot API id (chats)
$InputPeer = -10038575794; // bot API id (channels)
$InputPeer = 'user#44700'; // tg-cli style id (users)
$InputPeer = 'chat#492772765'; // tg-cli style id (chats)
$InputPeer = 'channel#38575794'; // tg-cli style id (channels)
```
A [Chat](Chat.md), a [User](User.md), an [InputPeer](InputPeer.md), an [InputUser](InputUser.md), an [InputChannel](InputChannel.md), a [Peer](Peer.md), or a [Chat](Chat.md) object can also be used.