dispose method
void
dispose()
Disposes of all active stream subscriptions and resets rate limits.
This method should be called when the RTDB instance is no longer needed to free up resources.
Implementation
void dispose() {
for (var subscription in _runningStreams.values) {
subscription.close();
}
_runningStreams.clear();
_listenedValues.clear();
_resetTimer?.cancel();
_client.close();
}