confirmUnsubscribe method
Cleans up after an unsubscribe message is received from the broker. returns true, always
Implementation
bool confirmUnsubscribe(MqttMessage? msg) {
final unSubAck = msg as MqttUnsubscribeAckMessage;
final topic =
pendingUnsubscriptions[unSubAck.variableHeader.messageIdentifier];
subscriptions.remove(topic);
pendingUnsubscriptions.remove(unSubAck.variableHeader.messageIdentifier);
if (onUnsubscribed != null) {
onUnsubscribed!(topic);
}
return true;
}