I think leave message with `unsub: true` unsubscribe the one end; is there a way to unsubscribe for the other pear too, something like telegram `delete/clear for them too` (not sure this is the right analogy for this use-case)?
{
"leave": {
"topic": "topic", // string, topic to leave, unsubscribe, or delete, required
"unsub": true // boolean, leave and unsubscribe, optional, default: false
}
Thanks.