A [Chat](API_docs/types/Chat.md), a [User](API_docs/types/User.md), an [InputPeer](API_docs/types/InputPeer.md), an [InputUser](API_docs/types/InputUser.md), an [InputChannel](API_docs/types/InputChannel.md), a [Peer](API_docs/types/Peer.md), or a [Chat](API_docs/types/Chat.md) object can also be used.