Whether this update is about messages in a thread (e.g. a comments thread or a topic in a forum)
Whether this update is about an "outbox" read (i.e. a message you have sent earlier was read)
ID of the last read message.
Note that if isDiscussion == true
, this contains the ID of the
last read message inside that thread, and not in the group itself.
ID of the thread/topic (i.e. ID of the top message).
For non-thread updates, 0.
For inbox updates (i.e. isOutbox = false
),
number of messages that are still unread in the chat.
For other updates, 0
Marked peer ID of the chat where the messages were read.