async fn joining_chat_id( context: &Context, invite: &QrInvite, alice_chat_id: ChatId, ) -> Result<ChatId>
Returns the ChatId of the chat being joined.
ChatId
This is the chat in which you want to notify the user as well.
When joining a group this is the ChatId of the group chat, when verifying a contact this is the ChatId of the 1:1 chat. The group chat will be created if it does not yet exist.