stopStream method
Stops the current stream and cleans up resources.
Implementation
@override
Future<void> stopStream() async {
if (_controller != null && !_controller!.isClosed) {
if (config.includeMetadata) {
_controller!.add(StreamData.text('', metadata: {'status': 'stopped'}));
}
await _controller!.close();
}
_controller = null;
}