dispose method
Implementation
@override
void dispose() {
  _uiInspector?.dispose();
  _contextDevToolMap.remove(controller!.view.contextId);
  _controller = null;
  _isolateServerPort = null;
  _isolateServerIsolate.kill();
}@override
void dispose() {
  _uiInspector?.dispose();
  _contextDevToolMap.remove(controller!.view.contextId);
  _controller = null;
  _isolateServerPort = null;
  _isolateServerIsolate.kill();
}