The user is preparing a message in a group; typing, recording, uploading, etc. This update is valid for 6 seconds. If no further updates of this kind are received after 6 seconds, it should be considered that the user stopped doing whatever they were doing

updateChatUserTyping#83487af0 chat_id:long from_id:Peer action:SendMessageAction = Update;


Name Type Description
chat_id long Group id
from_id Peer Peer that started typing (can be the chat itself, in case of anonymous admins).
action SendMessageAction Type of action