trackReactive method
Manually track a reactive object (for external reactive objects)
Implementation
void trackReactive(Rx reactive) {
  if (!_disposed) {
    _trackReactiveObject(reactive);
  }
}Manually track a reactive object (for external reactive objects)
void trackReactive(Rx reactive) {
  if (!_disposed) {
    _trackReactiveObject(reactive);
  }
}