dispose abstract method

@mustCallSuper @override void dispose()

Disposes this node and cleans up resources.

Marks the node as disposed; it is no longer reactive and will not participate in updates or propagation. Invokes onDispose for custom cleanup and notifies the finalizer system for chained disposers.

Example:

final node = MyDisposableNode();
node.dispose(); // Cleanup happens automatically

Implementation

@mustCallSuper
@override
void dispose();