runOnDispose method
Executes the Ref.onDispose listeners previously registered, then clear the list of listeners.
Implementation
@override
@internal
void runOnDispose() {
// Stops listening to the previous async operation
_lastFutureSub?.call();
_lastFutureSub = null;
_lastFuture = null;
_cancelSubscription?.call();
_cancelSubscription = null;
super.runOnDispose();
}