private void notifyVerticesPicked(Object[] selectedVertices, EventSource source) {
		Set<V> vertices = getSet(selectedVertices);
		for (PickListener<V> listener : listeners) {
			listener.verticesPicked(vertices, source);
		}
	}
This picked-state is a wrapper for {@link PickedState} that allows us to broadcast events
with the trigger of that event.

@param <V> the vertex type
Ghidra/Framework/Graph/src/main/java/ghidra/graph/viewer/event/picking/GPickedState.java